18000kN·m能级强夯在工业厂房填土地基的应用  

Application of 18000kN·m Energy Level Dynamic Compaction in Industrial Plant Land Filling Foundation

作　　者：姚正 李亨 谢力欢 YAO Zheng;LI Heng;XIE Li-huan(Sichuan Zhide Geotechnical Engineering Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]四川志德岩土工程有限责任公司,成都610041

出　　处：《价值工程》2024年第25期127-129,共3页Value Engineering

摘　　要：高能级强夯(指主夯击能大于6000kN·m的强夯)的有效加固深度可达8~30m,可加固处理大厚度非饱和土、大面积重堆载场地、大厚度湿陷性黄土和新填土等地基土,可进一步提高地基土强度和均匀性,降低压缩性,消除湿陷性,改善其抵抗振(震)动液化的能力等,使强夯法的经济高效性得以更加充分地施展[1-3]。本文结合某工业厂房项目超过15m的填土地基采用18000kN·m能级强夯处理后,利用压实度试验、平板载荷试验和多道瞬态面波测试试验三种试验结果评价地基强夯加固处理后的效果,为18000kN·m能级下地基处理的施工提供优化设计参数,为此类地基强夯加固后工程质量评定标准的合理性与应用提供参考。The effective reinforcement depth of high-energy dynamic compaction(refers to the dynamic compaction with a main compaction energy greater than 6000 kN·m)can reach 8~30 meters,which can reinforce the foundation soil such as large-thickness unsaturated soil,large area heavy load sites,large-thickness collapsible loess,and newly filled soil.It can further improve the strength and uniformity of the foundation soil,reduce compressibility,eliminate collapsibility,and improve its ability to resist vibration liquefaction,so that the economic efficiency of dynamic compaction method can be fully applied.Based on the results of three kinds of test results,such as compacting degree test,plate load test and multi-channel transient surface wave test,this paper evaluates the effect of foundation dynamic consolidation treatment by combining the land filling foundation of a certain industrial plant project that exceeds 15m and is treated with 18000kN·m energy level dynamic compaction,and provides optimized design parameters for foundation treatment construction at 18000kN·m level.It also provides a reference for the rationality and application of this kind of engineering quality evaluation standard after dynamic consolidation of foundation.

关 键 词：高能级强夯 填土地基 加固效果 强夯检测 

分 类 号：TU472.31[建筑科学—结构工程]