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Construction method of sand gravel layer high-pressure jet grouting anti-seepage wall
The invention belongs to the field of construction of water-power engineering technologies, and particularly relates to a construction method of a sand gravel layer high-pressure jet grouting anti-seepage wall. The construction method comprises the steps of site backfilling, drilling, slurry preparation, injection pipe lowering, slurry spraying and the like. According to the construction method, ahigh-pressure jet grouting anti-seepage wall test and construction of an upstream and downstream weir high-pressure jet grouting anti-seepage wall are smoothly completed, the construction effect of the anti-seepage wall is good, water injection tests are carried out on three drilled holes with different depths, the permeability coefficient k values obtained through calculation of the high-pressure jet grouting anti-seepage wall are all within the range of i =10<-5>-10<-6> cm/s, and the high-pressure jet grouting anti-seepage wall achieves the anti-seepage effect.
本发明属于水电工程技术的施工领域,具体涉及一种砂砾石层高压旋喷防渗墙施工方法。包括场地回填、钻孔、浆液制备、下喷射管、喷浆等步骤，本发明高压旋喷防渗墙试验及上下游围堰高压旋喷防渗墙施工顺利完成，防渗墙施工效果良好，通过对3个不同深度钻孔进行注水试验，高喷防渗墙计算得到的渗透系数k值均在i＝10～10cm/s范围内，高喷防渗墙达到了防渗的效果。
Construction method of sand gravel layer high-pressure jet grouting anti-seepage wall
The invention belongs to the field of construction of water-power engineering technologies, and particularly relates to a construction method of a sand gravel layer high-pressure jet grouting anti-seepage wall. The construction method comprises the steps of site backfilling, drilling, slurry preparation, injection pipe lowering, slurry spraying and the like. According to the construction method, ahigh-pressure jet grouting anti-seepage wall test and construction of an upstream and downstream weir high-pressure jet grouting anti-seepage wall are smoothly completed, the construction effect of the anti-seepage wall is good, water injection tests are carried out on three drilled holes with different depths, the permeability coefficient k values obtained through calculation of the high-pressure jet grouting anti-seepage wall are all within the range of i =10<-5>-10<-6> cm/s, and the high-pressure jet grouting anti-seepage wall achieves the anti-seepage effect.
本发明属于水电工程技术的施工领域,具体涉及一种砂砾石层高压旋喷防渗墙施工方法。包括场地回填、钻孔、浆液制备、下喷射管、喷浆等步骤，本发明高压旋喷防渗墙试验及上下游围堰高压旋喷防渗墙施工顺利完成，防渗墙施工效果良好，通过对3个不同深度钻孔进行注水试验，高喷防渗墙计算得到的渗透系数k值均在i＝10～10cm/s范围内，高喷防渗墙达到了防渗的效果。
Construction method of sand gravel layer high-pressure jet grouting anti-seepage wall
一种砂砾石层高压旋喷防渗墙施工方法
WEI ZIXIANG (author) / YUE WEI (author) / HUANG MENGLIN (author) / DU XIANGZHUANG (author) / SUN HENIAN (author)
2020-09-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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