Application Of Light-retaining Wall Under The Conditions Of Low Bearing Foundation

For a long time, gravity retaining walls and scale retaining walls are used widely in subgrade engineering in our country. With the development of economic and the requirement of saving energy and protecting environmental, walls which have the features of lightening, mechanization, being prefabricated and being assembled, saving energy and protecting environmental will be a direction of retaining structures' development. Light-retaining walls will be developed widely for their main features of lightening, a lower requirement on the bearing capacity of foundation, making use of fillers fully or formation' stability and being more economical, etc. To expand the applied scopes of the light-retaining structures and provide a reference for practical engineering, this paper will mainly explore the force characteristics of light-retaining walls under the low bearing capacity of foundation.The major works were done in this paper:â‘ The models of calculation and mechanical analysis about light-retaining walls were summarized, and the force characteristics of light-retaining walls were made a comparative analysis by the methord of analytic calculation.â‘¡The displacements, the earth pressures and the basal stresses' distributions of light-retaining walls were analyzed by ANSYS software, and a comparision with analytic calculation was made to explore the advantages of them.â‘¢Different designs of light-retaining walls were presented under the different engineering conditions. And some beneficial construction proposals were put forward for the future similar project construction.Comparing with gravity retaining wall, the advantages of light-retaining walls on the aspects of earth pressure, foundation stress and stability could been obtained by the united methord of analytic calculation and FEM. Furtherly, the superiority about light -retaining walls under the conditions of low bearing foundation capacity was highlighted.