RU1815311C - Method for construction of storage - Google Patents

Abstract

Usage: the construction of storage in the ground. SUMMARY OF THE INVENTION: A foundation pit is being developed. Fill it with a solution that fixes the soil. Place the storage formwork in the pit, having side walls and a bottom. Then, starting from the bottom, the gap between the walls of the pit and the formwork is filled with hardening material. In this case, the soil-fixing solution is displaced. After partial hardening of the composition, the formwork is removed by pulsating supply of compressed air to its bottom.

Description

The invention relates to the construction of structures buried in the ground and can be used in the construction of containers mainly for the storage of liquid substances and materials.

The aim of the invention is to increase the corrosion resistance of the storage, its reliability on gravel soils and reduce labor intensity.

This is achieved by the fact that after the excavation of the excavation pit, a metal casing having a bottom and acting as a formwork is introduced into it, and at first a strengthening hardening compound is poured into the gap between the walls of the excavation pit and the casing, and then, starting from the bottom, it is completely displaced hardening composition with a flow rate providing a constant upper level, and then, after partial hardening of the composition, the formwork is removed by pulsating supply of compressed air under the bottom of the formwork.

PRI me R. In loess soils having a porosity of 44.7%, moisture content of 18.6%, density 2.68 t / m3, skeleton mass 1.48

t / m, ductility 10.5, two groups of three pits were excavated with dimensions of 0.3 x 0.1 m and a depth of 0.4 m, excluding the humus layer.

After cleaning them, three metal pits having a bottom with a nozzle and a load excluding their ascent are lowered into three pits after their cleaning.

Then the gap between the body and the walls of the pit, ranging from 1 to 3 cm, was filled with a solution of water glass, with a density of 1.20 t / m in the first three, and 32 to 46 l in the next 1.30 t / m depending on the volume of the cavity formed by the walls of the pit and the formwork, and the intensity of the infiltration of the solution.

After relative stabilization of the solution infiltration for 10 - 20 min, a cement-sand composition was started to be poured into the gap through a nozzle lowered to the bottom, providing a practically constant level of solution-liquid glass until the gap was completely filled with a cement-sand composition of 24-30 liters.

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WITH

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After five hours of hardening of the cement mortar, the metal body was removed from the pit under the pressure of compressed air supplied intermittently under the bottom of the formwork through a special pipe.

The surface of the containers in all cases is smooth without breaking.

Under production conditions, the dimensions of pits and their number are taken based on needs.

Claims (1)

The claims A method of constructing a storage in the ground, including the development of a pit, filling it with a liquid medium, placement in a pit with a gap relative to its walls and the bottom of the storage formwork having 0 side walls and the bottom, and filling the gap with hardening material with the simultaneous displacement of the liquid medium, characterized in that, in order to increase the corrosion resistance of the storage, its reliability on subsidence soils and reduce labor intensity, a fixing soil solution is used as a liquid medium, and when filling the hardening material, its supply o exists from the bottom up, while maintaining a constant level of the fixing solution, and after the partial hardening of the material, the formwork is removed by pressurized supply of compressed air under its bottom.