CMW工法在隧道基坑支护工程中的应用

Application of CMW Method for Supporting Engineering in Tunneling Foundation Pit

摘要:

在南京市城市快速内环北线二期隧道基坑支护工程的粉细砂复杂地层中首次成功应用了CMW工法，与钻孔灌注桩、钢板桩、地下连续墙、土钉墙和SMW工法等相比，具有污染小、造价低、速度快和施工质量好等优点。结合该工程实例，介绍了CMW工法施工的优点、工艺流程、设备选择、施工方法、安全管理要求和使用效果等。

Abstract:

CMW method was first successfully applied in supporting engineering of tunneling foundation pit in urban express in Nanjing. Compared with bored grouting pile, steel sheet pile, diaphragm wall; soil-nailing wall and SMW method, it has the advantages of light pollution, low cost, rapid construction speed and good quality. The paper introduced the CMW method on its technical process, equipment selection, construction method, safety management and appliction effect.