排涝闸站高喷防渗墙在复杂地质条件下的应用

陈敏芬; 马 骏; 马良伟

引用本文:	陈敏芬,马骏,马良伟.排涝闸站高喷防渗墙在复杂地质条件下的应用[J].灌溉排水学报,2022,41(S1):62-65.
	CHEN Minfen,MA Jun,MA Liangwei.排涝闸站高喷防渗墙在复杂地质条件下的应用[J].灌溉排水学报,2022,41(S1):62-65.

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排涝闸站高喷防渗墙在复杂地质条件下的应用
陈敏芬，马骏，马良伟
1.杭州市水利水电工程质量安全管理服务中心，杭州 310005， 2.浙江省水利水电建筑监理公司，杭州 310003

摘要:

在施工过程中发现地质条件复杂多变，出现不同部位岩层厚度、颗粒级配变化大等特殊情况，采取多种高喷防渗墙施工方案确保实施效果。结合富春江干堤加固工程排涝闸站基础高喷防渗墙施工实例，在含大粒径砂卵石层复杂地质条件下，采取施工工艺和技术参数的优化比选、施工过程严格工序控制、第三方多指标质量检测和检测指标对比分析等方法，结果表明含大粒径砂卵石层高喷防渗墙各项指标满足设计要求，但粉质黏土层或淤泥质黏土层成墙质量优于含大粒径砂卵石层。

关键词: 高喷防渗墙：复杂地质条件；排涝闸站

DOI：10.13522/j.cnki.ggps.2021518

分类号:

基金项目:

Application of High Pressure Jet Grouting Cut-off Wall in Drainage Gate Station under Complex Geological Conditions

CHEN Minfen, MA Jun, MA Liangwei

1.Hangzhou Water Conservancy and Hydropower Engineering Quality and Safety Management Service Center, Hangzhou 310005, China; 2. Zhejiang Water Resources and Hydropower Construction Supervision Company, Hangzhou 310003, China

Abstract:

In the construction process, it was found that the geological conditions were complex and changeable, and there are special situations such as large changes in the thickness of rock strata and particle grading in different parts. It is necessary to apply a variety of high-pressure jet grouting anti-seepage wall construction schemes to ensure the implementation effect. Combined with the construction example of high-pressure jet grouting cut-off wall for the foundation of waterlogging gate station of Fuchun River main embankment reinforcement project, under the complex geological conditions with large-size sand pebble layer, the methods of optimized comparison and selection of construction technology and technical parameters, strict process control in the construction process, third-party multi index quality inspection and comparative analysis of inspection indicators were applied. The results showed that the indexes of the high-pressure jet grouting cut-off wall with large particle size sand gravel layer meet the design requirements, but the wall quality of silty clay layer or muddy clay layer is better than that of sand pebble layer with large particle size.

Key words: high pressure jet grouting cut-off wall; complex geological conditions; drainage gate station