|
|
|
| Research on the Design Method of the Large - scale Foam Light Soil for Soft Ground Treatments |
| WU Hai - gang，WANG Bao - jun，ZHENG Yong - hong，LU Ye – xu |
| (TheThird Railway Survey and Design Institute Group Corporation，Tianjin 300251，China) |
|
|
|
|
Abstract Research purposes ： Soft soil is thick ( greater than 20 m )，and the nature is poor，part of the lane is arranged on the light rail bearing，part of the lane is arranged on the soft soil foundation， so there is the problem of uneven roadbed settlement. The paper adopts the method of comparative analysis，designs a kind of more economic and efficient processing solution，which used large - scale foam light soil. This solution mainly solves the three problems， such as uneven settlement， high project cost， and serious impacts of the common treatment measure on the rail pile foundation. Research conclusions：( 1) After fi^lly demonstrates the characteristics of light soil，the project experimentally treats the soft foundation of using the foam light soil witli the cement mixing pile， successfully solves the problem of the uneven settlement; (2) It reduces the engineering cost about 30% ; (3) It reduces the influence on light rail pile foundation， passes the safety assessment and obtains the experts and the owners approval; (4) It further improves and expands the use scope of the foam light soil which has a certain reference significance for this kind of project.
|
|
Received: 11 November 2015
|
|
|
|
|
|
|
2016, Vol. 33 
