Differential Settlement Control of Mountain Highway Roadbed Widening
Relying on the modification and expansion project of a mountainous highway,a calculation model of differential settlement of roadbed widening is established to simulate and analyze the control effect of conventional roadbed fill and foam lightweight soil fill on differential settlement of roadbed.The results show that:when using conventional roadbed filler,laying geocells can control the differential settlement of roadbed to a certain extent,and the more the number of laying,the better the effect of controlling the horizontal displacement of roadbed;the use of foam lightweight soil fill can effectively improve the differential settlement of new and old roadbeds and horizontal displacement,and it is appropriate to control the height of the foam lightweight soil fill at 6-8 m.The optimization of the structural form of the foam lightweight soil fill is also carried out,and the optimization of the structural form of the foam lightweight soil fill is proposed.The optimization of foam lightweight soil filling structure form is also carried out,and the hybrid roadbed filling scheme of foam lightweight soil and bundside soil is proposed to control the roadbed filling cost.
highway roadbedmodification and expansionsettlement controldisplacement controlscheme optimizationcost control
万方数据
维普
