Downstream positioning grouting conduit and method of use thereof

Abstract

The invention discloses a drainage drainage positioning grouting conduit and a method for using the same. The drainage drainage positioning grouting conduit comprises a steel pipe with holes, a grouting guide pipe and a grouting conduit; the steel pipe with holes consists of an awl-shaped tip at the front end, It is composed of a section with holes in the middle, a section without holes at the rear end and a seal; two rows of radial grouting holes are symmetrically and evenly arranged on the middle section of the steel pipe with holes along the axial direction, and two rows of water pumping holes are arranged symmetrically and evenly, and two rows The radial grouting holes and the two rows of pumping holes are staggered and orthogonal on the cross section of the perforated steel pipe, and the radial grouting holes are directly connected to the grouting guide pipe and the external rock and soil layer, and the pumping holes are connected to the pumping channel and the external rock and soil layer , so as to achieve simultaneous pumping and grouting. Through the separation of pumping and grouting, the invention realizes the improvement of the existing grouting technology, and improves the efficiency of preventing and treating the problem of groundwater seepage damage.

Description

technical field [0001] The invention relates to a grouting device, in particular to a drainage drainage positioning grouting conduit and a method for using the same, which can be used for the prevention and rapid treatment of engineering seepage damage caused by groundwater. Background technique [0002] The existing positional grouting technology has been applied to various projects, for example, in excavation mines, it can be used to strengthen bedrock and mine slopes, and through hydraulic, pneumatic or electrochemical methods, some good The grout consolidated with the rock mass is injected into the voids of the rock mass to achieve the purpose of improving the physical properties of the rock mass; in the reinforcement of the subgrade, the positioning grouting technology is used to reinforce the subgrade to prevent its collapse from causing losses; continuous underground During the wall excavation process, due to the change of the diaphragm wall force, it is easy to cause...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a positioning grouting conduit for drainage and its use method, which solves the problems of long construction period and small applicability of the construction method, and realizes the rapid positioning of grouting while reducing the The purpose of the groundwater level

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