US1841594A - Method of and means for stabilizing river control structures - Google Patents

Description

E. E. DYSART Jan. 19, 1932.

METHOD OF AND MEANS FOR STABILIZING RIVER CONTROL STRUCTURES Filed Jan. 13

1931 2 Sheets-Sheet 1 awn 70R QZL QQQYQQW ATTORNEY Jan. 19, 1932. E. E. DYSART 1,841,594

METHOD OF AND MEANS FOR STABILIZING RIVER CONTROL STRUCTURES I 2 sheets-sheet 2 Filed Jan. 13. 1951 ATTORNEY Patented Jan. 19, 1932 UNITED STATES PATENT orricn ESTILL E. DYSART, OF KANSAS CITY, MISSOURI [A lic tion filed January 13, 1931. Serial no. 508,441.

(GRANTED UNDER THE ACT OF MARCH 3, 1883, AS AMENDED APRIL 30, 1928; 370 0. G. 757) or stream, and to divert the flow of a liver or stream away from the river bank when the currents tend to wash away the bank.

The primary object of this invention is to provide a novel method of stabilizing river control structures so as to prevent an initial settlement or displacement thereof due to the action of the water current thereon, or the scouring of the river bed, soft sub-soil, and other causes.

Another object of this invention is to provide a novel method of stabilizing river control structures consisting in providing a supporting pile or piles therefore which is'adapted to take up all superimposed'loads transmitted thereto.

Another object of this invention is to provide a novel pile or piles for supporting river control structures, the said pile or pilesbeing provided with a bail member for permitting the control structure to be lashed to the supporting pile.

A A still further and important object of this invention is to provide a supporting pile for a river control structure which will be simple, cheap to construct, and efficient in use.

' The present methods of stabilizing the structures used in controlling rivers and streams are of such a nature that there is an initial settlement or displacement of'the c0ntrol structure due to the action of-the current of water thereon, or by the scouring of the river bed, soft sub-soil, and various other causes. The supporting piles therefore are also not adapted to so engage'the control structure as to take upall superimposed loads transmitted to the control structure.

It is therefore the aim and purpose of this invention to provide a method of, and means for stabilizing river control structures, whereby the supporting anchors or anchorages therefore are connected to the control structure in such a manner as to take up all superlmposed I loads control structures which is eficient and durable in use.

l/Vith the above and other objects and advantages in View the invention consists in the arrangement and combination of parts to be hereinafter more fully described and claimed and illustrated in the accompanying drawings; it being understood however that various changes in form and proportion and other details may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Referring more particularly now to the accompanying drawings in which corresponding parts are indicated by similar reference characters:

Fig. '1 is a top plan view of a river control structure in place on the right bank of a river, looking up-stream, using my improved method of stabilizing the control structure.

Fig. 2 is a vertical sectional view of the control structure and the supporting pile therefore taken on the plan of line 22 of Fig. 1.

Fig. 3 is a vertical sectional view of the river control structure together with my improved supporting piles therefore, taken on line 33 of Fig. 2 illustrating my improved ly in section.

' Fig. 7- is a side elevation-of a bail member which is fitted on the cap of the supporting pile.

Fig. 8 is an end view of the bail member.

Fig. 9 is a vertical elevation of a nozzle point, partly in section which may be employed on the lower end of the supporting pile.

In the description of this invention 1 indicates generally a common form of river control structure of crib-like formation, consisting of a plurality of horizontally arranged tree members 2 which are held in spaced relation with each other by means of spacing members 8. The tree members 2 and spacing members 3 are interwound with a rope or wire cable 1 for lashing the tree and spacing members 2 and 3 together. Except for the lower most of the tree members 2, the trunks 5 thereof are superimposed one above the other, alternately with the spacing members 8, while the branched ends 6 thereof extend rearwardly from the body of the control structure 1 and project in the direction of the flow of the river 7 as indicated by the arrow. The branched ends 8 of the lower most tree members 2 project forwardly of the control structure 1 against the flow of the stream 7. The branched ends 6 and 8 of the tree members 2 form a permeable barricr to aid in retarding the rate of flow of the stream 7 so that the silt and suspended matter 9 in the stream will have a chance to be deposited upon the control structure 1 as well as upon the branched ends 6 and 8 of the tree members 2, and to the rear of the same.

The supporting anchorage for the control structure 1, is made in the form of a pile 10 which in the present instance, as illustrated in Fig. l of the drawings consists of a hollow cylindrical tube 11 made of metal or other suitable material. The upper end 12 of the tube 11 is externally threaded to receive the internal threads 13 of the internally threaded cap 14 containing transverse and aligned apertures 15. Swivelly mounted in the apertures 15 of the cap 14 is a circular pivot pin 16 on which is pivotably mounted a fastening bail member 17 for the purpose of tying the river control structure 1 in place. The lower end 18 of the tube 11 of the supporting pile 10 has a nozzle head 19 aflixed thereto which is made preferably of a metallic substance and is to be employed where adverse soil conditions prevent the normal drive of the supporting pile 10 into the soil in which advent the pile 10 would in itself comprise a water jet to assist in per mitting the pile 10 to be penetrated into the soil to the required depth.

To attach the river control structure 1 to the supporting pile or piles 10 and prevent the possible settlement of the control structure 1 by virtue of the action of the water current of stream 7 thereon, the securing of the river bed, or soft sub-soil, the lashing 20 which is preferably made of wire cable is pro vided. The wire cable 20 is caused to interwind at least the three upper-most members of the crib-like control structure 1 and thence pass through the bail member 17 provided on the upper end 11 of the supporting pile 10 as illustrated in Fig. 3 of the drawings.

By this method of lashing the river control structure 1 to the supporting pile 10 by means of the bail member 17 the supporting pile or piles 10 may take up any and all superimposed loads transmitted thereto, thus preventing the possible settlement or displacement of the control structure 1 which may be caused by the action of the water current thereon or other causes.

In determining the value to be placed upon the supporting pile 10 an important factor is to be considered along the following lines, to wit:

The silt carrying capacity of the stream 7 depends upon its velocity, that is, the greater the velocity the greater the silt carrying capacity. In other words, the silt carrying capacity increases with the velocity of the stream 7 and falls off with the retardation of the stream.

Therefore, when the control structure 1 which is first placed in the stream 7 with the current velocity being naturally greater then, than any time later, there is created a clownward agitation having an effect to under-scour the control structure 1 and thereby cause a settlement thereof. It is at this period that the supporting pile 10 is to function and prevent initial settlement of the control structure 1, the supporting pile 10 must be pene trated into the soil sufiiciently as to sustain the load of the control structure 1. Later when the control structure 1 begins an accumulation of detached fragments 9 of the stream 7 the velocity of the stream is automatically retarded with the resulting effect that soil deposits 9 accumulate about the control structure 1 eventually overspreading it entirely. It is at this period that due to superimposed loads with possible voids underneath that a settlement of the control struc ture 1 is likely to occur, and again comes the necessity of the supporting pile 10 to prevent settlement until by natural river action the soil and structure conditions adjust them selves to a firm foundation.

It will thus be seen that I have provided a highly novel, simple and efficient method of stabilizing river control structures by the installation of a supporting pile for the control structure which will prevent a detrimental settlement of the control structure until such a time when the said control structure may become independent of necessary supports, or reverting to its intended obligation should adverse river conditions create the necessity throughout and beyond the life of the control structure proper.

Now that I have described my invention what I claim as new and wish to secure by Letters Patent is:

1. Means for controlling rivers; comprising vertical pilesdriven into the river bed at the desired point, bail members pivotally mounted on the upper end of said piles and a crib structure of interlaced members suspended from said piles by means of a flexible strand which passes through said bail members and supports said crib structure at points lofcated on three members from the top there- 0 l 2. Means for controlling rivers; comprising vertical piles driven into the river bed, bail members pivotally mounted on the upper ends of said piles, a crib structure of interlaced cross members suspended from said piles and a cable which passes through said bail members and interwinds the uppermost members of said crib structure for connecting said crib structure to said piles.

3. Means for controlling rivers; comprising vertical piles driven into the river bed bail members pivotally connected to the upper ends of said piles, a crib structure consisting of a plurality of tree members and spacing members suspended from said piles by means of flexible strands which pass through said bail members and support said crib structure at points located on said spacing members and said tree members.

4:. Means for controlling rivers; comprising hollow piles closed at their upper ends by means of caps, transverse and aligned apertures in said caps, pivot pins swivelly mounted in said apertures, bail members pivotally mounted on said pins, hollow cone-shaped metallic nozzles fixed to the lower end of said piles and a crib structure of interlaced members suspended from said piles by means of a flexible strand which supports said crib structure at points located at least the third member from the top and passes through said bail members for taking up all superimposed loads transmitted to said iles.

E TILL E. DYSART.

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