CN116837676A - Three-dimensional intersection road structure - Google Patents

Abstract

The present invention relates to a three-dimensional intersection road structure. By arranging a first ramp, a second ramp and a third ramp close to the point D and a fourth ramp, a fifth ramp and a sixth ramp close to the point C, This allows any two points among point A, point B, point C and point D to be connected through the new road, requiring fewer ramps, smaller construction scale, and lower project investment. Moreover, the first, third, fourth and sixth ramps need to pass through the point where the new road connects both sides and pass underneath, so that the new road, except for the first, third, fourth and sixth ramps, The hillside can be used as the roadbed for the rest of the part where the ramp goes under, and the roadbed can also be built along the hillside surface for the first, third, fourth and sixth ramps except for the part where it goes under. Reduce mountain excavation within the corridor interval, overcome elevation restrictions, and reduce project investment.

Description

A kind of three-dimensional intersection road structure

Technical field

The invention relates to the field of road technology, in particular to a three-dimensional intersection road structure.

Background technique

In the existing road design, when facing two high-speed traffic between four points at both ends, a complex cross-road structure needs to be set up, and generally at least 8 ramps need to be introduced as passages for each point to enter and exit the freeway. The required settings There are many ramps, large construction scale and high project investment.

Moreover, urban terrain conditions in mountainous areas in western my country are poor, often characterized by large height differences and steep cross slopes. As a result, the route corridors that can accommodate road layout are often limited by terrain conditions, housing group structures, etc., and the construction environment is particularly complex. With the development of cities and the increase in traffic flow, the demand for new high-grade roads is also increasing. However, the single nature of road corridors often leads to the need to build new high-grade roads within the same corridor of existing roads.

In particular, for new high-grade roads with the same corridor on steep single-slope mountains, it is necessary to lay out interchanges and connect parallel old roads for traffic conversion, so that both end points of the new high-grade road and both end points of the old road are evenly spaced. It can be interconnected through high-grade roads, but in the face of objective construction conditions such as narrow corridors, steep cross slopes, large height differences, and many structures, it will cause greater interference to existing roads. The construction of huge interchanges also poses new challenges to road construction. Based on this, it is necessary to study a new structure that can effectively utilize narrow spaces, reduce mountain excavation, and control engineering investment.

"Detailed Design Rules for Highway Intersections" (JTG/T D21-2014) provides a large number of interchange design forms. However, designing interchanges based on the interchange forms listed in this design specification does not match the terrain conditions and functional requirements. Often, This results in huge waste of engineering investment and operational safety.

Contents of the invention

The purpose of this invention is to address the existing technology problems of pairwise high-speed traffic between four points at both ends requiring a complex cross-road structure, which requires many ramps, large construction scale, and high project investment. , providing a three-dimensional intersection road structure.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

A three-dimensional intersection road structure includes point A and point B respectively at both ends of the existing road. It is characterized in that it also includes a new road. The two ends of the new road have point C and point D respectively. The points are C and point B are located at the same end, point D and point A are located at the same end, point C and point D are located on the same side of point A and point B, and the newly constructed road includes traffic in opposite directions. The first passageway and the second passageway, the first passageway is from the point C to the point D, and the second passageway is from the point D to the point C;

The three-level intersection road structure also includes a first ramp, a second ramp and a third ramp located near the point D and a fourth, fifth and sixth ramp located near the point C;

The vehicle can enter the first ramp from the first access lane to the point A,

The vehicle can enter the second ramp from the point A to the second access road,

Vehicles can enter the third ramp from the first access lane to the second access lane,

The vehicle can enter the fourth ramp from the point B to the first access lane,

The vehicle can enter the fifth ramp from the second access lane to reach the point B,

Vehicles can enter the sixth ramp from the second access lane to the first access lane.

The three-dimensional intersection road structure of the present invention is configured by arranging the first, second and third ramps close to the point D and the fourth, fifth and sixth ramps close to the point C, so that Any two points among point A, point B, point C and point D can be connected through new roads, which require fewer ramps, smaller construction scale, and lower project investment.

Preferably, the existing road is located on a hillside, the point D is higher than the point A, the point C is higher than the point B, the first access road is located on the hillside, and the first ramp, The third, fourth and sixth ramps pass under the new road.

In this plan, when the existing road is located on a hillside, that is, the new road has occupied part of the corridor width on the steep single-slope mountain, the remaining corridor site may face the problem of being relatively narrow, and facing the cross-slope problem. Objective construction conditions such as steep slopes, large height differences, and numerous structures make it difficult to implement new roads; in this plan, the first, second and third ramps are set up close to the point D and the third ramp close to the point C. The fourth, fifth and sixth ramps are set up so that any two points of point A and point B of the existing road and point C and point D of the new road can be connected through the new road, and the first ramp, the The third ramp, the fourth ramp and the sixth ramp need to pass through the point where the new road connects both sides, and adopt the method of underpassing, so that the new road except the first ramp, the third ramp, the fourth ramp and the sixth ramp underpass, The remaining parts can use the hillside as the roadbed, and the first ramp, the third ramp, the fourth ramp and the sixth ramp, except for the underpass part, can also be built along the hillside surface, which can reduce the roadbed within the limited corridor interval. Excavation of small mountains can overcome elevation restrictions and reduce project investment.

Preferably, the newly constructed road has bridges erected at the underpasses of the first, third, fourth and sixth ramps to facilitate the safe underpasses of the ramps.

Preferably, the newly constructed road jointly builds a first bridge at the intersection of the first ramp and the third ramp;

and / or,

The newly constructed road will jointly build a second bridge at the intersection of the fourth ramp and the sixth ramp.

In this structure, only two new bridges are built over the ramp for the underpass part of the ramp. There are fewer structures and the overall project investment is less.

Preferably, the slopes of the side where the first, third, fourth and sixth ramps pass through the newly constructed road are all less than or equal to 5%, and the remaining parts are built based on the slope of the hillside. The slope of the underpass can be adjusted so that corresponding ramps can be built to suit the slope of the hillside.

Preferably, the first ramp and the third ramp are connected to one end of the first passageway and are collected in the first collection section, and the second ramp and the third ramp are connected to one end of the second passageway. Gather in the second collection section, the fourth ramp and the sixth ramp connect one end of the first access road and gather in the third collection section, the fifth ramp and the sixth ramp connect the second One end of the passageway converges at the fourth collection section.

This allows the corresponding ramps to enter the new road together through the collection section, reducing the openings of the new road, making construction simpler and road traffic safer.

Preferably, the first ramp and the fourth ramp are symmetrically arranged, the second ramp and the fifth ramp are symmetrically arranged, the third ramp and the sixth ramp are symmetrically arranged, when conditions permit. Symmetrically arranged, the construction scale is smaller.

Preferably, the existing roads are demolished and the newly built roads are installed within the corridor range of the existing roads.

The corridor range that can be used for engineering construction on a hillside is limited. When the corridor range required for a new road cannot be satisfied, the existing road can be demolished and a new road built within the corridor range of the existing road to connect point A. , any two points among point B, point C and point D meet the corresponding construction conditions.

Preferably, the third ramp and the sixth ramp have a semi-circular structure or a semi-elliptical structure in vertical horizontal projection, and the third ramp and the sixth ramp are located within the corridor range of the existing road.

This enables ramps to be built within the corridors of existing roads and meets corresponding construction conditions.

Preferably, it includes the existing road, and the newly built road is higher than the existing road.

While building new roads, ensure that existing roads can continue to be used.

In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

1. The three-dimensional intersection road structure of the present invention is formed by arranging the first, second and third ramps close to the point D and the fourth, fifth and sixth ramps close to the point C. , so that any two points among point A, point B, point C and point D can be connected through the new road, which requires fewer ramps, smaller construction scale, and lower project investment.

2. In the three-dimensional intersection road structure of the present invention, on the premise that any two points of point A and point B of the existing road and point C and point D of the new road can be connected through the new road, the first ramp and the third The ramp, the fourth ramp and the sixth ramp need to pass through the point where the new road connects both sides, and use the method of underpassing, so that except for the first ramp, the third ramp, the fourth ramp and the sixth ramp, the rest of the new road passes under The hillside can be used as the roadbed in all parts, and the first ramp, the third ramp, the fourth ramp and the sixth ramp, except for the underpass part, can also be built along the hillside surface, which can be reduced within a limited corridor interval. Mountain excavation can overcome elevation restrictions and reduce project investment.

Description of the drawings

Figure 1 is a schematic plan view 1 of the three-dimensional intersection road structure according to the present invention;

Figure 2 is a partial enlarged schematic diagram of X in Figure 1;

Figure 3 is a partial enlarged schematic diagram of Y in Figure 1;

Figure 4 is a schematic diagram of the three-dimensional intersection road structure described in Figure 1 in a hillside corridor;

Figure 5 is a second schematic plan view of the three-dimensional intersection road structure according to the present invention;

Figure 6 is a schematic diagram of the three-dimensional intersection road structure described in Figure 2 in a hillside corridor.

Icons: 1-Existing road; 2-New road; 21-First access road; 22-Second access road; 41-First ramp; 42-Second ramp; 43-Third ramp; 44-Fourth ramp ; 45-fifth ramp; 46-sixth ramp; 51-first bridge; 52-second bridge; 61-first collection section; 62-second collection section; 63-third collection section; 64-fourth Collection section; 7-hillside.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

Example 1

This embodiment provides a three-dimensional intersection road structure. Refer to Figures 1 to 3. It includes point A and point B respectively at both ends of the existing road 1, and also includes a new road 2. The two ends of the new road 2 are respectively There are point C and point D. The point C and the point B are located at the same end. The point D and the point A are located at the same end. The point C and the point D are located at the same end of the point A and the point B. On the other side, the newly built road 2 includes a first access lane 21 and a second access lane 22 with opposite traffic directions. The first access lane 21 goes from the point C to the point D, and the second access lane 22 goes from the point C to the point D. The point D to the point C;

The three-level intersection road structure also includes a first ramp 41, a second ramp 42 and a third ramp 43 provided near the point D and a fourth ramp 44, a fifth ramp 45 and a sixth ramp 46 provided near the point C;

As shown in Figures 1 and 2, vehicles can enter the first ramp 41 from the first access lane 21 to the point A,

The vehicle can enter the second ramp 42 from the point A to the second access lane 22,

Vehicles can enter the third ramp 43 from the first access lane 21 to the second access lane 22,

As shown in Figures 1 and 3, vehicles can enter the fourth ramp 44 from the point B to the first access lane 21,

The vehicle can enter the fifth ramp 45 from the second access lane 22 to reach the point B,

Vehicles can enter the sixth ramp 46 from the second access lane 22 to the first access lane 21 .

In the three-dimensional intersection road structure described in this embodiment, the existing road 1 and the newly built road 2 can be parallel roads. By arranging the first ramp 41, the second ramp 42 and the third ramp 43 close to the point D and close to the point D, The fourth ramp 44, the fifth ramp 45 and the sixth ramp 46 set up at point C enable any two points among point A, point B, point C and point D to be connected through the new road 2, and the required ramps are more less, the construction scale is smaller and the project investment is lower.

In this plan, when the existing road 1 is located on the hillside 7, that is, the new road 2 has occupied part of the corridor width on the steep single-slope mountain, the remaining corridor site may face a relatively narrow problem, and Faced with objective construction conditions such as steep cross slopes, large height differences, and numerous structures, it is difficult to implement the new road 2. In this plan, six ramps are set up to make points A and B of the existing road 1 and the new road 2 Any two points in point C and point D can be connected through the new road 2.

And the existing road 1 is located on a hillside 7, as shown in Figure 4 or Figure 6, the point D is higher than the point A, the point C is higher than the point B, and the first access road 21 Located on the mountain side. The first ramp 41, the third ramp 43, the fourth ramp 44 and the sixth ramp 46 need to pass through the point where the new road 2 connects both sides, and adopt the way of passing under. The first ramp 41, the third ramp 43, the fourth ramp Ramp 44 and sixth ramp 46 pass through the newly constructed road 2. As shown in Figures 2 and 3, where the first ramp 41, the third ramp 43, the fourth ramp 44 and the sixth ramp 46 pass through the newly built road 2, a bridge can be built to facilitate the safe passage of the ramps. In this embodiment, a first bridge 51 is jointly erected on the newly constructed road 2 at the intersection of the first ramp 41 and the third ramp 43 , that is, the first bridge 51 is jointly erected above the first ramp 41 and the third ramp 43 As part of the newly built road 2, the first ramp 41 and the third ramp 43 are connected together, as shown in Figure 2; similarly, the newly built road 2 is connected between the fourth ramp 44 and the sixth ramp 46. A second bridge 52 is jointly erected at the underpass to realize the common underpass of the fourth ramp 44 and the sixth ramp 46.

The three-dimensional intersection road structure in this embodiment makes the newly constructed road 2 except for the parts where the first ramp 41, the third ramp 43, the fourth ramp 44 and the sixth ramp 46 pass underneath, that is, except for the first bridge 51 in Figure 2 Except for the ramp part below and the ramp part below the second bridge 52 in Figure 3, the remaining parts can use the hillside 7 as the roadbed, and except for the first ramp 41, the third ramp 43, the fourth ramp 44 and the sixth ramp 46 The roadbed can also be built along the surface of the hillside 7 in parts other than the underpassing part, which reduces mountain excavation within a limited corridor interval, overcomes elevation restrictions, and can reduce project investment. In addition, in this structure, only two new bridges are built over the ramp for the underpass part of the ramp. There are fewer structures and the overall project investment is less.

In this embodiment, the slopes of the side where the first ramp 41, the third ramp 43, the fourth ramp 44 and the sixth ramp 46 pass through the newly built road 2 are all less than or equal to 5%, and the remaining parts are all relying on It is built according to the slope of hillside 7, and the slope of the ramp section that goes under the newly built road 2 can be adjusted so that the corresponding ramp can be built to adapt to the slope of hillside 7.

As shown in FIGS. 2 and 3 , in this embodiment, one end of the first ramp 41 and the third ramp 43 connecting the first access road 21 can also be collected in the first collection section 61 . The second ramp 42 and the third ramp 43 connect one end of the second passage 22 and converge in the second collection section 62 , and the fourth ramp 44 and the sixth ramp 46 connect the first passage 21 One end of the fifth ramp 45 and the sixth ramp 46 is connected to the third collection section 63 , and one end of the second passageway 22 is connected to the fourth collection section 64 . This allows the corresponding ramps to enter the new road 2 together through the convergence section, reducing the opening of the new road 2, making construction simpler and road traffic safer.

In addition, the first ramp 41 and the fourth ramp 44 are preferably arranged symmetrically, the second ramp 42 and the fifth ramp 45 are also preferably arranged symmetrically, and the third ramp 43 and the sixth ramp 43 are also preferably arranged symmetrically. The ramp 46 is also preferably arranged symmetrically. If conditions permit, the ramp 46 will be arranged symmetrically and the construction scale will be smaller.

Because the corridor range of hillside 7 that can be used for engineering construction is limited, the single-sided slope corridor can only provide space for one road. When the corridor range required for the new road 2 cannot be satisfied, the existing road 1 can be demolished. Build a new road 2 and 6 ramps within the corridor of the existing road 1 to connect any two points among point A, point B, point C and point D, and meet the corresponding construction conditions. As shown in Figures 1 to 4, if the existing road 1 is demolished (indicated by a dotted line) and the new road 2 is installed within the corridor of the existing road 1, then this structure can still play a good role. Advantageous conditions: By abolishing the existing road 1 in the collinear section and constructing a new road 2 in the abolition space, the original space can be better utilized, land occupation can be saved, and the scale of the project can be reduced. Except, as a preferred embodiment, the third ramp 43 and the sixth ramp 46 have a semi-circular structure or a semi-elliptical structure in vertical horizontal projection, as shown in Figure 4. The third ramp 43 and the sixth ramp 46 are The six ramps 46 are located within the corridor of the existing road 1. This enables the ramp to be built within the corridor of the existing road 1 and meets the corresponding construction conditions.

When the corridor range of hillside 7 used for engineering construction excludes the corridor range of existing road 1, it can still meet the requirements for the construction of new road 2 and the corresponding 6 ramps. It is possible to ensure that both the new road 2 and the corresponding 6 ramps are constructed while building the new road 2. There is a road 1 that can continue to be used. As shown in Figures 5 and 6, the new road 2 is higher than the existing road 1.

Using the three-dimensional intersection road structure described in this embodiment, the traffic trajectories of any two points among point A and point B of the existing road 1 and point C and point D of the newly built road 2 are as follows:

A to B: There are two paths, one of which is to use the existing road 1. The second one is that end A uses the second ramp 42 to enter the second access lane 22 of the newly built road 2, and then exits from the fifth ramp 45 to end B.

A to C: The path is to use the second ramp 42 at end A to enter the second access lane 22 of the newly built road 2, enter the left lane through lane change, and end at end C.

A to D: There are two access paths. One is to use the second ramp 42 at end A to enter the second access lane 22 of the newly built road 2, then use the sixth ramp 46 to detour to the first access lane 21, complete the U-turn, and pass Lane change into the left lane, to the D end. The second is to use the existing road 1 to end B from end A, then use the fourth ramp 44 to enter the first access lane 21 of the newly built road 2, enter the left lane through lane change, and reach end D.

B to A: There are two paths, one of which is to use the existing road 1. The second one is that end B uses the fourth ramp 44 to enter the first access lane 21 of the newly built road 2, and then reaches A through the first ramp 41.

B to C: There are two access paths. One is to use the fourth ramp 44 at end B to enter the first access lane 21 of the newly built road 2, and then use the third ramp 43 to detour to the second access lane 22 of the newly built road 2. Complete the U-turn, enter the left lane through lane change, and reach end C. The second one is that end B uses the existing road 1 to end A, then uses the second ramp 42 to drive into the second access lane 22 of the newly built road 2, and enters the left lane through lane change to end C.

B to D: The path is to use the fourth ramp 44 at the B end to enter the first access lane 21 of the newly built road 2, enter the left lane through lane change, and end at D end.

C to A: The path is to use the first access lane 21 of the newly built road 2 at the C end, and then use the first ramp 41 to reach A.

C to B: The path is to use the first access lane 21 of the newly built road 2 at the end of C, then use the third ramp 43 to detour to the second access lane 22 of the newly built road 2, complete the U-turn, and then use the fifth ramp 45 to exit. B side.

C to D: Use the first access lane 21 of the newly built road 2.

D to A: The path is to use the second access lane 22 of the newly built road 2 at the D end, then use the fifth ramp 45 to exit to end B, and then pass the existing road 1 to end A; or after reaching end B, use the fourth ramp The ramp 44 drives into the first access lane 21 of the newly built road 2, and then the first ramp 41 is used to drive out to end A.

D to B: The path is to use the second access lane 22 of the newly built road 2 at the D end, and then use the fifth ramp 45 to exit to the B end.

D to C: Use the second access lane 22 of the newly built road 2.

The three-dimensional intersection road structure described in this embodiment, through novel ramp layout, can well adapt to the objective construction conditions of narrow site corridors, steep cross slopes, and large height differences, and can greatly utilize the existing corridor space. The mountain excavation is reduced within a limited area to overcome elevation restrictions. At the same time, compared with the traditional structure, this structure only builds two new bridges over the ramps, so there are fewer structures and the overall project investment is also less.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. A three-dimensional intersection road structure, including point A and point B respectively at both ends of the existing road (1), characterized in that it also includes a new road (2), and the two ends of the new road (2) There are point C and point D respectively. The point C and the point B are located at the same end. The point D and the point A are located at the same end. The point C and the point D are located between the point A and the point B. On the same side, the newly constructed road (2) includes a first access road (21) and a second access road (22) with opposite traffic directions. The first access road (21) runs from the point C to the point D. , the second passage (22) is from the point D to the point C; The three-level intersection road structure also includes a first ramp (41), a second ramp (42) and a third ramp (43) located near the point D, as well as a fourth ramp (44) and a fifth ramp (44) located near the point C. Ramp (45) and sixth ramp (46); The vehicle can enter the first ramp (41) from the first access road (21) to the point A, The vehicle can enter the second ramp (42) from the point A to the second access road (22), Vehicles can enter the third ramp (43) from the first access lane (21) to the second access lane (22), The vehicle can enter the fourth ramp (44) from the point B to the first access road (21), The vehicle can enter the fifth ramp (45) from the second access lane (22) to reach the point B, Vehicles can enter the sixth ramp (46) from the second access lane (22) to the first access lane (21). 2. The three-dimensional intersection road structure according to claim 1, characterized in that the existing road (1) is located on a hillside (7), the point D is higher than the point A, and the point C is higher than At point B, the first access road (21) is located on the mountain side, and the first ramp (41), the third ramp (43), the fourth ramp (44) and the sixth ramp (46) pass through it. Describe the new road (2). 3. The three-dimensional intersection road structure according to claim 2, characterized in that the new road (2) is located between the first ramp (41), the third ramp (43), the fourth ramp (44) and the third ramp. The underpass of Ramp 6 (46) is a bridge. 4. The three-dimensional intersection road structure according to claim 3, characterized in that the new road (2) jointly erects a first bridge at the intersection of the first ramp (41) and the third ramp (43). (51); and / or, The newly constructed road (2) jointly builds a second bridge (52) at the intersection of the fourth ramp (44) and the sixth ramp (46). 5. The three-level intersection road structure according to claim 2, characterized in that the first ramp (41), the third ramp (43), the fourth ramp (44) and the sixth ramp (46) pass through The slope of one side of the newly constructed road (2) is less than or equal to 5%. 6. The three-level intersection road structure according to claim 2, characterized in that the first ramp (41) and the third ramp (43) are connected to one end of the first passageway (21) and converge at the third A collection section (61), the second ramp (42) and the third ramp (43) are connected to one end of the second passageway (22) and converge in the second collection section (62), and the fourth The ramp (44) and the sixth ramp (46) connect one end of the first passage (21) and gather in the third collection section (63), the fifth ramp (45) and the sixth ramp ( 46) One end connected to the second passageway (22) is collected in the fourth collection section (64). 7. The three-level intersection road structure according to claim 2, characterized in that the first ramp (41) and the fourth ramp (44) are symmetrically arranged, and the second ramp (42) and the third ramp (42) are arranged symmetrically. The five ramps (45) are symmetrically arranged, and the third ramp (43) and the sixth ramp (46) are symmetrically arranged. 8. The three-dimensional intersection road structure according to any one of claims 1 to 7, characterized in that the existing road (1) is demolished, and the new road (2) is installed on the existing road (1). within the corridor. 9. The three-dimensional intersection road structure according to claim 8, characterized in that the third ramp (43) and the sixth ramp (46) are a semi-circular structure or a semi-elliptical structure in vertical horizontal projection, so The third ramp (43) and the sixth ramp (46) are located within the corridor range of the existing road (1). 10. The three-dimensional intersection road structure according to any one of claims 1 to 7, characterized in that it includes the existing road (1), and the newly built road (2) is higher than the existing road (1).