某地铁盾构区间过岩溶地段处理措施

The treatment measures of subway shield interval through the Karst Area

在岩溶地段进行盾构掘进属高风险作业,易引发盾构机"栽头"甚至是整机下沉等事故,因此掘进前的预处理极为重要。笔者结合工程实例,提出了盾构穿越岩溶地段前的相关处理措施,重点阐述了处理原则、处理范围、处理工艺及效果检测方法,可供类似工程参考。

For shield tunneling is a high risk operation in karst area, easy cause the shield machine ＂planted head＂ even the sinking accident, therefore pretreatment before driving is very important. With practical engineering examples, puts forward relevant treatment measures of shield tunneling in karst area, expounds the principle of treatment, treatment process and effect detection method, which can be a reference for the similar engineering.