巴基斯坦瓜达尔地区湿陷性土强夯后地表夯沉量与含水量的关系研究  

Study on the relationship between surface compaction settlement and moisture content of collapsible soil after dynamic compaction in Gwadar,Pakistan

作　　者：李杰 马秉务[1] 王世杰 Li Jie;Ma Bingwu;Wang Shijie(BGI Engineering Consultants Ltd.,Beijing 100038,China)

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《工程勘察》2025年第4期24-29,86,共7页Geotechnical Investigation & Surveying

摘　　要：强夯法是处理湿陷性土的常用方法,已在工程中得到了较多应用。同样能级情况下,强夯处理时湿陷性土的含水量对强夯处理效果有很大影响,因此强夯前常需对含水量较低的湿陷性土预先进行增湿处理。本文依据巴基斯坦瓜达尔某项目单点强夯试验段施工前后的试验结果,对比分析了不同含水量下的湿陷性地基土单点强夯处理后的地表夯沉量及周边地表变形规律。试验结果表明:当湿陷性地基土的含水量逐渐接近最优含水量时夯击效果最佳。本文列出相关试验结果,以便供类似场地进行地基处理时参考。Dynamic compaction is a commonly used method to treat collapsible soil,which has been widely applied in many projects.Under the same energy level,the moisture content of collapsible soil has a significant impact on the dynamic compaction treatment effect.Therefore,it is often necessary to pre-moisten the collapsible soil with lower moisture content before dynamic compaction.Based on the test results before and after the construction of a single-point dynamic compaction test in Gwadar,Pakistan,the surface compaction settlement and surrounding ground deformation patterns of collapsible soil treated by single-point dynamic compaction under different moisture contents is comparatively analyzed in this paper.The test results show that the compaction effect is optimal when the moisture content of the collapsible soil gradually approaches the optimal moisture content.The relevant test results are presented in the paper could be referred for the similar ground treatment works.

关 键 词：湿陷性场地 强夯法 增湿 最优含水量 地表夯沉量 

分 类 号：TU444[建筑科学—岩土工程]