高压旋喷截渗墙在碾湾坪水库中的应用分析

Application Analysis of High-pressure Rotary Jetting Cutoff Wall in Nianwanping Reservoir

为确保水库绿化、农林灌溉供水职能,提升水库防渗性能。以碾湾坪生态供水调蓄水库工程高压旋喷截渗墙为例,采用三管法施工,通过试验确定施工工艺参数,从施工工艺流程及特殊情况处理、质量控制及注水防渗检测等方面对高压旋喷截渗墙施工技术进行应用分析。为高压旋喷截渗墙施工质量控制提供参考。

In order to ensure water supply for reservoir area afforestation and irrigation of farmland and forestry,and to improve the impervious performance of the reservoir,the high-pressure jet grouting cut-off wall of Nianwanping Reservoir was constructed.Based on the test,the construction with three-pipe grouting was adopted.In the paper,application of high-pressure jet grouting cut-off wall construction technology,including construction procedure,specific cases treatment,quality control,and water filling for seepage detection are analyzed.It provides reference for construction quality control of high-pressure rotary jet cut-off wall.