Experimental Study on Liquefaction and Behavior of Post-liquefaction Deformation and Strength in Saturated Sand-gravel Composites;

Base on the shield tunneling construction of Beijing rail transportation 10 railway,Xidian station——Liangma river Station,carried on the indoor simulation experiment of the synchronized pouring of shield tunneling construction in the saturated gravel stratum.

Study of dynamic pore water pressure and axial strain in saturated sand-gravel composites;

This article tested and analyzed the influence of the fine sand proportion in sand-gravel on the quality of filling roadbed, and proposed a desirable solution scheme.

The structure and composition of the sand field have heterogeneity.

Laboratory study on the mechanism and behaviour of saturated sand-gravel composites;

Research on the residual deformation behavior of sand-gravel composites reinforced with geo-grid

Study on the stress-strain relation of liquefied saturated sand-gravel composites and method of parameter identification

Tests on the compaction properties of sand-gravel material for the dam construction of Ni erji water conservancy project;

A three-factor curve consisting of a gravel content ,dry density and relative density was established by testing physico-mechanical indexes of the sand-gravel materials from borrow areas to obtain necessary indexes for construction control.

The compaction standards of the sand-gravel material for filling the dam shell of earth-rockfill dam with clay core are conventionally controlled by the relative density.