Construction method for temporary jump drainage of bilge well

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a sewage well temporary jump drainage construction method which comprises the following steps that S1, firstly, a worker investigates the sewage flow direction according to the current situation, meanwhile, a scheme and an underground pipeline distribution diagram are determined, the jump drainage well position is placed, a steel protection cylinder is buried under the condition that the inclination is not larger than 0.5%-1%, the inner diameter of the protection cylinder is 19-21 cm larger than the pile diameter, and the steel protection cylinder is placed on a foundation; the top surface of the pile casing is 20-30 cm higher than the construction ground; s2, a positive circulation drilling machine is adopted, a geological profile map is drawn according to geological and hydrological data provided by the construction design, different drill bits, drilling pressures, drilling speeds and proper mud specific gravity are selected for different geological stratums, and low-gear and low-speed drilling is suitable during drilling; through the contact between the extrusion plate and the side walls of the sewage pipe and the three-way pipe, the connectivity can be improved along with the distance between the sewage pipe and the three-way pipe, connection between the sewage pipe and the three-way pipe is kept, support is provided for construction of a tunnel below a sewage well, and the influence on the project progress caused by sewage leakage is reduced.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a construction method for temporary skipping of sewage wells. Background technique [0002] With the development of urban rail transit in my country and the continuous maturity of the urban subway network, it is inevitable that there will be overlapping municipal pipeline spaces on the lines of the underground railway. During the excavation of the underground railway tunnel, the municipal pipeline network within the spatial intersection of the subway section must be Carry out relocation processing, otherwise construction will not be possible. [0003] A Chinese patent with publication number CN107905345A discloses an injection mold, which includes the following steps: S001, the controller obtains the sewage inflow rate through a flow meter, and the controller obtains the sewage storage in the sewage well through a water level gauge; S002, the controller o...

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Problems solved by technology

[0004] In the prior art, the traditional method of temporarily skipping sewage wells is to redefine the route of the sewage pipe network around the existing pipe network, design and construct the sewage pipes and joint wells, transfer the current sewage to the new route, and then replace the original sewage joints The well is demolished, and after the tunnel construction is completed, the sewage route is restored to its original position. However, the traditional method of temporary jumping of sewage wells takes a long time to relocate, and the underground geology of the relocation is unknown, which poses environmental risks.

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