粗粒料填筑地基关键参数试验研究  

Experimental study on key parameters of coarse grain filled foundation

作　　者：钱财富[1] 王佩 徐海波[1] 周文渊[1] QIAN Cai-fu;WANG Pei;XU Hai-bo;ZHOU Wen-yuan(Anhui and Huaihe River Institute of Hydraulic Research,Hefei 230088,China)

机构地区：[1]安徽省·水利部淮河水利委员会水利科学研究院,安徽合肥230088

出　　处：《江淮水利科技》2022年第6期4-6,22,I0001,共5页Jianghuai Water Resources Science and Technology

基　　金：安徽省水利科技计划项目(SLKJ2017-02);安徽省·水利部淮河水利委员会水利科学研究院青年科技创新基金(KY202003)。

摘　　要：粗粒料具有分布广、工程造价低等诸多优点,在地基处理中得到广泛的应用。目前,粗粒料室内试验研究比较多,现场工程特性研究较少。通过现场测试和室内试验,研究粗粒料地基工程特性。结果表明:粗粒料填筑地基具有地基承载力高、变形小等特点;粗粒料地基容易出现不良级配现象,颗粒粒径越大,离散程度越高;浸水后湿陷变形,附加沉降量占地基变形总沉降量的比重较大。Coarse aggregates have many advantages such as wide distribution and low engineering cost,and are widely used in foundation treatment.At present,there are many laboratory tests and studies on coarse-grained materials,but few studies on field engineering characteristics.Through the field test and indoor test,the engineering characteristics of the coarse-grained material foundation are studied.The results show that the foundation filled with coarse-grained materials has the characteristics of high foundation bearing capacity and small deformation;the coarse-grained foundation is prone to bad gradation phenomenon,and the larger the particle size,the higher the degree of dispersion;after soaking in water,the subsidence deforms and additional settlement,the amount accounts for a large proportion of the total settlement of foundation deformation.

关 键 词：粗粒料 离散程度 地基承载力 变形模量 湿陷变形 

分 类 号：TU433[建筑科学—岩土工程]