Construction method of high-pressure swing grouting water-stop curtain

Abstract

The invention relates to a construction method of a high-pressure swing grouting water-stop curtain, belonging to the method of building construction. The method comprises the following steps of: staking out in survey, positioning a drilling rig, installing and locating the drilling rig, boring, treating an orifice and grouting. The grouting process comprises the following steps of: a. trying to spray a ground; b. injecting to a spraying tool; c. stirring cement slurry; d. injecting air and water at high pressure and grouting at low pressure; e. completing grouting; and f. cleaning. The construction method has the characteristics of wide application range, convenience for getting materials, simplicity and convenience for construction operation, higher construction speed, reliable construction quality and economy and reasonability. The construction method of the high-pressure swing grouting water-stop curtain can better prevent ground water from entering a construction region, reduce the waste and the pollution of ground water resources to the maximum degree, protect ground water resources, maintain the balance of the ground water resources, ensure the safety of peripheral buildings and structures and meet the requirement for green construction.

Description

technical field [0001] The invention relates to a building construction method, in particular to a construction method of a high-pressure pendulum spraying water-stop curtain. Background technique [0002] During the construction of deep foundation pits, it is often necessary to take technical measures to prevent the groundwater system from flowing into the foundation pit. The usual method is to drill dewatering wells around the building foundation pit to pump groundwater out of the work area, but this method causes serious waste and pollution of groundwater resources, and will cause uneven ground settlement, affecting the safety of surrounding buildings and structures. Contents of the invention [0003] In order to overcome the defects that the ground water resources are seriously wasted and polluted by drilling the dewatering well and pumping the ground water out of the operation area during the construction of the deep foundation pit, causing uneven ground settlement an...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects that the ground water resources are seriously wasted and polluted by drilling the dewatering well and pumping the ground water out of the operation area during the construction of the deep foundation pit, causing uneven ground settlement and unsafe defects, the present invention aims to provide a high-pressure The pendulum spraying water-stop curtain construction method has a wide range of applications, convenient material acquisition, simple construction operation, fast construction speed, reliable construction quality, and reasonable economy. Reduce the waste and pollution of groundwater resources, protect groundwater resources, maintain the balance of groundwater resources, prevent uneven ground settlement, ensure the safety of surrounding buildings and structures, and meet the requirements of green construction

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