浅谈刚塑性混凝土组合式防渗墙在窄口水库除险加固工程中的应用

On application of rigid plastic concrete combined cutoff wall in Zhaikou Reservoir Risk Removal and Reinforcement Project

灵宝市窄口水库坝体黏土心墙裂缝、坝基断层破碎带发育和渗漏量的不断加大迫使水库不能正常运行。经反复论证,坝体采用刚性混凝土与塑性混凝土组合式防渗墙进行截渗加固。从施工后的坝体安全监测数据结果来看,刚塑性组合混凝土防渗墙很好地适应了坝体变形,满足了设计防渗要求。本文介绍了施工方案的选定以及具体的防渗墙施工过程。

Lingbao Zhaikou Reservoir dam clay core wall crack,dam foundation fault fracture zone development and increasing seepage force the reservoir to work abnormally.Rigid concrete and plastic concrete combined cutoff wall is adopted in the dam for impervious reinforcement after repeated arguments.Dam safety monitoring data results after construction show that dam deformation is well adapted by rigid plastic composite concrete cut-off wall,which meets design seepage prevention requirements.In the paper,selection of construction plan and concrete seepage prevention wall construction process are selected.