A Diaphragm Wall Supporting Method for Preventing Roadway Bottom Heave

Abstract

The invention discloses a continuous wall supporting method for preventing floor heaving of a roadway. The supporting method comprises the following four steps: bottom plate strengthening grooves are cut in two bottom corners of the roadway; a plurality of steel pipes are taken and then connected and fixed into a whole through a W-shaped steel belt, wherein the length of each steel pipe is slightly larger than the depth of each bottom plate strengthening groove; the steel pipes which are well connected and fixed are inserted into the cut bottom plate strengthening grooves, wherein the upper portions of the steel pipes are exposed out of the bottom plate strengthening grooves, then, the bottom plate strengthening grooves are filled with concrete, and the steel pipes are filled with mortar; after filling work is finished, all the steel pipes are connected and fixed through the W-shaped steel belt on the sections, exceeding the depth of the bottom plate strengthening grooves, of the steel pipes, the steel pipes are fixed through nuts and trays on the upper portions of all the steel pipes, the steel pipes which are connected together and the bottom plate strengthening grooves filled with the concrete form a continuous wall and are stressed jointly to strengthen a bottom plate of the roadway, and therefore the bottom plate is protected. The continuous wall supporting method has a good effect of strengthening the bottom plate of the roadway, and is good in protective effect, safer and more practical.

Description

technical field [0001] The invention relates to a support method, in particular to a continuous wall support method for preventing roadway floor heaving when the floor is broken or weak. Background technique [0002] As my country's coal mines continue to go deep, the roadway floor drum phenomenon is becoming more and more common and serious, which seriously affects the transportation and normal use of such roadways, and affects the safe production of coal mines. Simultaneously, the roadway bottom drum needs a large amount of maintenance work, wastes manpower and material resources and needs to spend a large amount of maintenance costs. At present, the occurrence of roadway floor heaving is often controlled by bottom angle bolts. This method is cumbersome to operate, requires a lot of manpower and material resources, has poor protection effect, and has a short service life. Contents of the invention [0003] In order to solve the deficiencies in the above problems, the pr...

AI Technical Summary

Problems solved by technology

At the same time, the floor drum of the roadway needs a lot of maintenance work, which wastes manpower and material resources and costs a lot of maintenance costs.

At present, the bottom angle bolt is often used to control the occurrence of roadway floor heaving. This method is cumbersome to operate, requires a lot of manpower and material resources, has poor protection effect, and has a short service life.

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