高能量强夯置换法处理变电站深厚软土地基研究
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摘要
针对明州500 kV变电站的深厚软弱土的特殊地质条件,采用强夯置换法进行了场地地基加固处理,详细介绍了设计方案。通过地基静载荷试验、瑞利面波检测、超重型圆锥动力触探试验等检测方法对地基加固效果进行综合评价分析,进一步验证了强夯置换法的适用条件。建议工程强夯置换实施前通过试夯以确定强夯置换对该工程的适用性及取得强夯置换所需的参数。
In view of the special geological condition of deep soft soil in 500 kV substation of the state of Wyoming, the dynamic consolidation replacement method is adopted to reinforce the foundation of the site, and the design scheme is introduced in detail. By means of static load test, Rayleigh surface wave test and super heavy cone dynamic penetration test, comprehensive evaluation and analysis of foundation reinforcement effect are carried out, and further proves the applicable condition of dynamic consolidation replacement method. Before the dynamic consolidation replacement of the proposed project, it is necessary to determine the applicability of the dynamic compaction replacement to the project and to obtain the parameters required for the dynamic consolidation replacement, which has certain reference significance for the foundation reinforcement of such projects.
In view of the special geological condition of deep soft soil in 500 kV substation of the state of Wyoming, the dynamic consolidation replacement method is adopted to reinforce the foundation of the site, and the design scheme is introduced in detail. By means of static load test, Rayleigh surface wave test and super heavy cone dynamic penetration test, comprehensive evaluation and analysis of foundation reinforcement effect are carried out, and further proves the applicable condition of dynamic consolidation replacement method. Before the dynamic consolidation replacement of the proposed project, it is necessary to determine the applicability of the dynamic compaction replacement to the project and to obtain the parameters required for the dynamic consolidation replacement, which has certain reference significance for the foundation reinforcement of such projects.
引文
[1]龚晓南.地基处理手册(第三版)[M].北京:中国建筑工业出版社,2008.