A pilot study of the gravel performance in the construction;

For example, the modulus of resilience of sand gravel base course changes as the load changes.

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.