崔 涛,田 砾,高 昆,陈 聪
某深基坑旋喷桩水泥挡土墙裂缝成因及加固处理
崔 涛,田 砾,高 昆,陈 聪
摘 要:介绍了某固体废弃物中转车间基坑开挖过程中面临的粉煤灰填海基层塌陷、地下腐蚀性水补给速度快等问题。针对该工程基坑挡土墙的实际裂缝出现的情况进行了分析,总结了内在因素和外在因素;并针对开裂原因,采取削坡、放坡、锚喷面层、钢管支撑来进行加固,有效地阻止了裂缝的开展。
Abstract: During the foundation pit excavation of a certain solid waste transfer workshop, some problems are introduced, such as the fly ash filling sea layer sinking and collapse, corrosive underground water supply speed fast and so on. The cracks situation of the foundation pit retaining wall in the project is analyzed, and the intrinsic factors and the external factors are summarized. In view of the causes of cracking, such techniques of cutting slope, put slope, anchor bolt and shotcrete spray the surface, combined steel tube supporting to reinforce are adopted to prevent the crack development effectively.
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