山区深厚抛填土地基的沉降分析及建议  

The Foundation Settlement Analysis and Suggestion of a Deep End-Dump Backfill Site in Mountainous Area

作　　者：赵云川 饶传友 刘杰[1] 周欣 ZHAO Yunchuan;RAO Chuanyou;Liu Jie;ZHOU Xin(Sichuan Electric Power Design Consulting Co.Ltd.,Chengdu 610041)

机构地区：[1]四川电力设计咨询有限责任公司,成都610041

出　　处：《土工基础》2025年第1期63-66,共4页Soil Engineering and Foundation

摘　　要：随着城市化建设发展,开山填沟等方式在西南山区比较普遍,势必会形成大量的抛填土场地,抛填土场地的沉降性能是工程建设比较关注的问题;通过钻探、波速测试等原位测试手段,采用工程类比分析,计算了工程场地的变形模量及后期可能的变形,同时与相关工程监测成果进行了比较分析,计算结果虽大于监测值,但不影响工程整体判断;综合分析得出均匀性较好的石质抛填土在填土年限大于5年的情况下,在对浅表层地基土进行适量的处理后,可作为电力线路铁塔基础场地使用,研究成果可作为同类工程计算分析借鉴。V With the development of urbanization,the methods of mountain cutting,and trench filling are more common in the southwest mountainous area,which is bound to form many landfilling sites.The settlement performance of landfilling sites is an engineering construction concern.In this paper,the site settlement was estimated through drilling,acoustic wave velocity testing and other in-situ testing means as well as using a large number of engineering analogy analysis.At the same time,the deformation modulus of the engineering site and the later possible deformation were also estimated and compared with the actual monitoring results.Although the estimation results are greater than the monitoring results,but it does not affect the overall judgment of the project.After comprehensive analysis,it is concluded that stone cast-fill with good uniformity can be used as the foundation site of power line tower after proper treatment of the shallow surface foundation soil when the filling life is more than 5 years.The estimation and analysis methods of this paper can be used as a reference for the estimation and analysis of similar engineering.

关 键 词：抛填土 沉降 工程类比分析 电力线路 

分 类 号：TU472[建筑科学—结构工程]