%0 Journal Article
%A LI Fang-zhen
%A LIU Kan
%A CHEN Zhi-bo
%T Experimental Study on the Triaxial Permeability  ofBroadly Graded Gravelly Soil
%D 2016
%R 10.11988/ckyyb.20140677
%J Journal of Yangtze River Scientific Research Institute
%P 126-129
%V 33
%N 1
%X In order to study the permeability characteristics of the broadly graded gravelly soil, triaxial seepage tests  in the presence  of different gravel contents. The test results show that, with the increasing gravel content,the structure types of the broadly graded gravelly soil can be divided into three different kinds,including suspend-dense structure, dense-framework structure and framework-pore structure. When the gravel content increases, the permeability coefficient decreases slowly first, then increases slowly, and increases quickly finally. Dry density has main  influence on  permeability coefficient, so does the moisture content. The permeability coefficient is obviously different near the optimum moisture content, so we should pay attention to controlling the  moisture content in construction.
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20140677