Drilling cleaning circulation equipment and installation method of steel pipe column in pilot tunnel

Abstract

The invention provides drilling cleaning circulation equipment, and relates to the technical field of underground excavation construction of subway tunnels. The equipment comprises a drilling machine, a mud separation device, a mud tank and pipelines. The pipelines comprise the first pipeline and the second pipeline, and the drilling machine is connected with a gravel pump; drilling slag, generated in drilling of the drilling machine, in a hole is pumped out through the gravel pump and then discharged to the mud separation device through the first pipeline, the mud separation device separates the drilling slag from mud, and the separated mud flows back into the mud tank; a variable-frequency mud return pump is arranged in the mud tank and used for conveying the mud in the mud tank back into the hole through the second pipeline. The drilling cleaning circulation equipment is used for pumping drilling slag and mud in a drilled hole out of the pile hole and then separating the drilling slag from the mud and can convey the separated mud back into the pile hole, and thus a mud and drilling slag mixture in the pile hole can be discharged in time to accelerate drilling of a drill.

Description

technical field [0001] The invention relates to the technical field of subway tunnel underground excavation construction, in particular to a drilling cleaning circulation equipment and a method for installing a steel pipe column in a pilot tunnel. Background technique [0002] With the development of urbanization, municipal rail transit has become an integral part of the important traffic in the city. Various rail transit lines are arranged in a staggered manner, covering every corner of the city. Rail transit transfers have undoubtedly become the hub of various transportation lines. Although most transfers in China have realized transfers within stations, the transfer lines are long and difficult for passengers. Unnecessary trouble has been brought about; "zero-distance" transfer has become the mainstream trend in the development of urban rail transit; super-high transfer sections need to be set up for zero-distance subway transfers, which are used as transfers between two ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a drilling cleaning circulation equipment to solve the technical problem existing in the prior art that the mud located in the hole and the drilling slag cut by the drilling rig cannot be discharged in time during the drilling process, thereby affecting the continued drilling of the drill bit. The many technical effects that can be produced by the optimal technical solution among the many technical solutions provided (reduce the labor intensity of workers, improve the working conditions, and reduce the risk factor) are detailed below.

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