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Construction Technology of Cluster Pendulum Spraying Cut-off Wall

A construction process and technology of anti-seepage walls, which are applied in marine engineering, water conservancy projects, infrastructure engineering and other directions, can solve the problems of uneven thickness of anti-seepage walls and easy blocking of air passages, improve the effect of leading holes, and eliminate the need for lead holes. The process of the hole, the effect of the hole leading effect is good

Active Publication Date: 2022-06-24
江西省水利科学研究院
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a construction technique for the cluster pendulum jetting cut-off wall, using a rotary drilling rig to drill holes, adopting 2 sets (or multiple sets) of slurry nozzles separated in opposite directions, and the slurry gas channels are separated from each other on different axes. The measures solved the problems of uneven thickness of the anti-seepage wall and easy blockage of the air passage, and improved the construction quality and work efficiency of the anti-seepage wall

Method used

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  • Construction Technology of Cluster Pendulum Spraying Cut-off Wall
  • Construction Technology of Cluster Pendulum Spraying Cut-off Wall
  • Construction Technology of Cluster Pendulum Spraying Cut-off Wall

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Embodiment Construction

[0035] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0036] like figure 1As shown in the figure, the construction process of the cluster pendulum spray anti-seepage wall, the steps are as follows:

[0037] S1. Drilling: Drilling with a rotary drill, a driving mechanism for driving the rotation and pressing of the drill pipe is installed on the drill pipe, and a pulse impact mechanism is installed on the drill pipe, the drill pipe is connected to the drill bit, and the high-pressure cement slurry nozzle is symmetrically arranged on the dril...

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Abstract

The invention discloses a construction technique of cluster pendulum spraying anti-seepage wall, which comprises four steps of drilling, grouting, refilling and sealing, and adopts a rotary device to drill holes. When drilling, a driving mechanism drives a drill rod while pressing down. Rotate while drilling continuously to complete the drilling; after the drill bit drills to the expected depth, perform high-pressure jet grouting to ensure that the indicators of the slurry meet the design requirements, spray the cement slurry from the high-pressure cement slurry nozzle to cut the formation, and start at the preset speed Lift the drill pipe to the preset elevation; then refill and seal the hole. The invention adopts a rotary drilling rig to drill holes, and adopts two sets (or more than two sets) of high-pressure slurry nozzles separated to solve the problem of uneven thickness of the traditional high-spray cut-off wall, forms a high-spray cut-off wall with approximately equal thickness, and improves the construction efficiency. efficiency and reduce construction costs.

Description

technical field [0001] The invention relates to the technical field of anti-seepage wall construction, in particular to a construction technology of cluster pendulum spray anti-seepage wall. Background technique [0002] The anti-seepage wall is the main project in the water conservancy project, and its project quality is very important. In recent years, various construction techniques have been used in the construction of anti-seepage walls. Common techniques mainly include hydraulic grab method, water jet wall method, high spray method, impact drilling method, deep mixing method, etc. Among them, the hydraulic grab method, the water jet wall method and the impact drilling method belong to the full replacement process, that is, the soil, sand and gravel in the original stratum must be replaced from the ground, and then the concrete material is recharged to form the wall; while the high spray method and the deep stirring method do not. All need to be replaced, in situ cutti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/16E02D15/02E02B3/16E21B6/04E21B10/61
CPCE02D19/16E02D15/02E02B3/16E21B6/04E21B10/61E02D2250/003
Inventor 谢为江
Owner 江西省水利科学研究院
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