广东水利水电Issue(12)：108-115,8.
富水深厚软土地层超深地下连续墙施工关键技术
Key Technologies for Construction of Ultra Deep Underground Continuous Wall in Deep Soft Soil Layers with Rich Water Content
汪良军 1王松茂 1杨超1
作者信息
- 1. 广东水电二局股份有限公司,广州 511340
- 折叠
摘要
Abstract
Taking the subsequent optimization project of Hanjiang Rongjiang Lianjiang water system connectivity as an example,Analyze the key and difficult points in the construction of ultra deep underground continuous walls in rich water and deep soft soil layers,and introduce key construction technologies:①Adopting a combination of grab milling and grooving process to adapt to geological characteristics and improve grooving efficiency;②Application of New Composite Nanobentonite Wall Protection Slurry to Improve the Stability of Tank Walls;③Dynamic control of slot hole verticality through slot positioning preprocessing and ultrasonic grooving detection;④Application of self-locking straight thread sleeve connection technology to improve the efficiency of segmented lifting and cage connection of steel reinforcement cage;⑤The groove joint adopts milling and high-pressure jet flushing technology to ensure the anti-seepage effect;⑥Key points for concrete mix design and tremie pouring control in ultra deep water.The application of key construction technologies has improved the construction efficiency of ultra deep underground continuous walls,ensuring the quality of the walls and the anti-seepage effect of groove joints.关键词
超深地下连续墙/抓铣结合/垂直度/自锁直螺纹套筒/接头冲洗/水下混凝土Key words
ultra deep underground continuous wall/grasping and milling combination/verticality/self locking straight thread sleeve/joint flushing/underwater concrete分类
建筑与水利引用本文复制引用
汪良军,王松茂,杨超..富水深厚软土地层超深地下连续墙施工关键技术[J].广东水利水电,2023,(12):108-115,8.
