西北水电Issue(2)：78-81,98,5.DOI:10.3969/j.issn.1006-2610.2024.02.013
高压旋喷防渗墙在多漂卵砾石围堰地基中的应用
Application of High Pressure Jet Grouting Cutoff Wall in the Foundation of Cofferdam with Gravel and Pebble
赵健飞 1孙青秀2
作者信息
- 1. 中国三峡新能源(集团)股份有限公司,北京 101100
- 2. 陕西铁路工程职业技术学院,陕西 渭南 714000
- 折叠
摘要
Abstract
Cofferdam is widely used in the construction of water conservancy projects.Which provides a solid guarantee for the construction of hydraulic structures on dry land.The anti-seepage performance of cofferdam is directly related to the safety of foundation pit and the construction quality of substructure.Curtain grouting+core wall(inclined wall),concrete cutoff wall or high pressure jet grouting are of-ten used for cofferdam seepage prevention.Combined with the seepage control construction practice of powerhouse cofferdam,the"three-pipe method"is used for the construction of high-pressure rotary jet grouting cutoff wall in the gravel foundation containing more drift pebbles.The construction technology and method are optimized from the aspects of field test,hole layout,drilling,jet grouting,and ex-ceptional case treatment.The application results show that the construction meet the design requirements after post-grouting quality in-spection.关键词
漂卵砾石/高压旋喷防渗墙/施工工艺/质量检查Key words
gravel and pebble/high pressure rotary jet grouting/construction technics/quality inspection分类
建筑与水利引用本文复制引用
赵健飞,孙青秀..高压旋喷防渗墙在多漂卵砾石围堰地基中的应用[J].西北水电,2024,(2):78-81,98,5.
