含锚杆粉砂性地层地连墙施工控制技术分析
摘要
The foundation pit of Jinhu Square Station of China's Nanning Rail Transit Line 3 is located in the water-rich stratum with the excavation depth of 30.65m~32m, which is close to the existing buildings, ground roads, underground pipelines and metro tunnels. The surrounding environment is very sensitive to the foundation pit construction. When the underground diaphragm wall is slotted, it has the disadvantages of large noise, slow progress, poor slotting, and poor wall formation. By imitating the principle of cutting steel bar with cutting machine, the grooving grab is transformed, which eliminates the construction noise and speeds up the construction progress, and the quality of grooving into wall is good, and the popularization and application value are high.