锚喷-止水帷幕-暗柱组合体系在某深基坑工程中的应用

Application of the Compound System of Spurts and Anchor,Water-stopping Curtain and Hidden Column in the Project of a Deep Foundation Pit

山东省广电中心综合业务楼工程(东区)基坑深度约13～15m,基坑支护方案采用锚喷-止水帷幕-暗柱组合体系,在施工过程中成功解决了土层渗水、杂填土层成孔、砾石层成孔、单根锚杆穿过多种地质钻进等多项难题,确保了基坑稳定。

This project is the synthesis service building of Shandong Broadcast and Television Center(east district)with a foundation pit of about 13～15m deep.In the support and protection of the foundation pit we take a compound system of spurts & anchor-water-stopping curtain-hidden column.And we have successfully solved so many problems such as seeping of soil layer,drilling of mixing filled layer and gravel layer and even a single rod through kinds of soil layers.All of these have made sure of the stability of the foundation hole and we have gained many precious experiences for the construction of similar projects.