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Application of High Pressure Jet Grouting Method in Pile-based Underpinning Reinforcement of Build-up Buildings
Author(s): 
Pages: 66-69
Year: Issue:  3
Journal: JOURNAL OF EARTH SCIENCES AND ENVIRONMENT

Keyword:  高压旋喷注浆法复杂地基托换加固;
Abstract: 针对兰州某小区商住楼已形成不均匀沉降的地基,根据场地施工条件、地基条件和建筑物的结构特征,对该工程地基选择了高压旋喷注浆法进行加固,加固结果表明:加固前及加固初期地基沉降速率较大,加固施工完成后沉降速率变小,加固完成两个月后沉降稳定,加固效果良好.通过该工程实践表明:高压旋喷注浆法在复杂地基中对既有建筑物的加固处理虽然是可行的,但同时必须根据地基土的特点采取相应的切实可行的技术措施,才能使地基加固处理达到预期的效果.其加固原理既有旋喷桩的托换加固之功效,又有静压注浆加固之作用.
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