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Study on Bracing and Reinforcement Technique of Foundation Pit in High Permeability Ait Area
Author(s): LV Zhenli, CHEN Jianping
Pages: 79-
82,75
Year: 2010
Issue:
5
Journal: Building Science
Keyword: 江心洲; 潮汐作用; 基坑; 联合支护;
Abstract: 结合泉州某商业街基坑支护工程实例,通过理论分析及前期方案验证认为,上层孔隙潜水补给迅速、江水潮汐作用及饱和砂层难以加固是高透水性江心洲地区基坑支护面临的三个主要难点.在无同类工程经验可参考的不利条件下,针对特殊地质条件开展了现场原位试验,施工结果及基坑监测表明,采用双高压旋喷桩止水帷幕结合锚杆联合支护体系,成功弥补了水泥搅拌桩墙成桩难度大、止水效果差等缺陷,有效提高了止水帷幕的完整度和支护结构加固...
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