Construction method of multi-drill high-pressure jet agitation based anti-seepage reinforcing equipment

Abstract

The invention provides a multi-drill high pressure jet agitation based anti-seepage reinforcing equipment and a construction method thereof. The equipment comprises a drilling machine, a stirring machine and a guniting system connected between the drilling machine and the stirring machine, wherein the drilling machine comprises a drill rig fixed on a trolley, an operation board, an actuating mechanism, a speed change mechanism, a transmission mechanism and a turnplate; three to five drill stems are arranged; the lower end of the drill stem is provided with a high pressure drill; the guniting system is a high pressure guniting system, and comprises a high pressure slurry pump with a pressure indicator and a high pressure slurry delivery pipe; and one end of the high pressure slurry delivery pipe is communicated with a slurry delivery pore canal through a high pressure jet tap, while the other end is communicated with a slurry outlet of the stirring machine. The equipment integrates drilling, hoisting and high pressure jet stirring into a whole, improves the anti-seepage factor and verticality of a seepage proof wall, improves the vertical accuracy of drilling and the depth of bore holes, and solves construction defects of vents, deflection, jet nozzle blockage, cold seam, soil mixture of the seepage proof wall and the like.

Description

technical field [0001] The invention relates to the technical field of anti-seepage treatment of geotechnical engineering, in particular to construction equipment and a construction method for an anti-seepage wall. Background technique [0002] At present, the traditional method of anti-seepage and reinforcement treatment in geotechnical engineering is: the multi-head drill pipe uses the steel teeth on the drill bit to stir the formation, and there is a hole larger than 5.0mm in the lower part of each drill bit, which is used for perfusion during drilling. Low-pressure cement slurry, after the multi-head drill pipe is drilled to the design depth, the low-pressure cement slurry is poured while lifting the drill pipe until the design top elevation, and the above work is repeated continuously to form a continuous anti-seepage wall. This traditional method has following shortcoming: 1, this traditional method is owing to be low-pressure pouring cement slurry, when drilling, alth...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies in the prior art, the present invention provides a construction method of anti-seepage and reinforcement equipment for foundation with multi-drill high-pressure jet mixing, to solve the technical problems of poor construction efficiency and low construction quality of the traditional anti-seepage wall construction method, and Solve the problems of heavy wear, short service life, high maintenance rate and high labor intensity of construction equipment during the construction of traditional anti-seepage walls

Images