Brick plugging structure construction method for underground balanced water pressure tube well

Abstract

The invention relates to a brick plugging structure construction method for an underground balanced water pressure tube well, which comprises the following steps: 1) processing a bricking body, a horizontal wood plate and a wooden wedge block, back-pasting a first expansion rubber sheet on the horizontal wood plate, and back-pasting a second expansion rubber sheet on the wooden wedge block; (2) marking serial numbers on the brick body, the horizontal wood board and the wooden wedge block; (3) conveying the brick body, the horizontal wood board and the wooden wedge block to the construction position, and blocking the well mouth of the tube well through the brick body, the horizontal wood board and the wooden wedge block; (4)smearing bentonite on the plugging face, and then smearing quick-dry cement on the bentonite layer; and (5) pumping water out in the downstream face pipeline of the well mouth of the tube well, observing, and if no underground water appears in the downstream face pipeline, carrying out follow-up construction. According to the method, the wood is cut by utilizing the characteristic that the volume is easy to expand and increase after the wood absorbs water to manufacture the wooden wedge block, so that the wooden wedge block is matched with the brick body and the horizontal wood board to extrude, stretch and plug the well mouth of the tube well, and good plugging and waterproof effects are achieved.

Description

technical field [0001] The invention relates to the construction technical field of underground pipe and well plugging in the construction process of construction engineering, in particular to a construction method of a brick-built plugging structure for underground balanced water pressure pipe wells. Background technique [0002] During the construction of construction projects, we often encounter the problem that underground pipelines hinder the excavation and need to be blocked or rerouted, especially in recent years, the re-layout and planning of urban infrastructure, the rise of underground transportation, urban pipe corridors and other projects nationwide In the process of foundation construction, when the existing underground pipes and well bottom elevations are located at the excavation surface elevation, it is necessary to temporarily block and reroute the existing urban rainwater and sewage pipes and wells everywhere. [0003] Among the existing sealing methods, th...

AI Technical Summary

Problems solved by technology

However, in the actual construction, it is found that the air bag in the air bag sealing method is easily punctured by sharp objects on the ground during the sealing process, and is washed by rainwater to the underground tube well; moreover, the water and impurities in the underground tube well may be polluted. Corrosion components, and the air bag is mostly made of rubber materials, so the air bag is easily corroded by corrosive components in water, so the air bag is mostly used for short-term tube well sealing; while the steel plate sealing method has limited operating environment space in the tube well, difficult construction, and dangerous operation higher sex issues

Images