Reinforcement effects of ground treatment with dynamic compaction replacement in cold and saline soil regions  

作　　者：Yu Zhang JianKun Liu JianHong Fang AnHua Xu 

机构地区：[1]Lanzhou Jiaotong University [2]Beijing Jiaotong University [3]Qinghai Research Institute of Transportation

出　　处：《Research in Cold and Arid Regions》2013年第4期440-443,共4页寒旱区科学（英文版）

基　　金：the support and motivation provided by National 973 Project of China (No. 2012CB026104);National Natural Science Foundation of China (No. 41171064) and (No. 41271072)

摘　　要：The mechanical property of saline soils varies with moisture and climate in the cold and salt lake region of Qinghai-Tibet Plateau, which influences project construction. In order to improve foundation reinforcement effect of the QarharvaTrolmud Highway, Qinghai Province, China, dynamic compaction replacement （DCR） composite foundation was applied in saline soils. A field experiment was conducted in this area, where strength and working mechanism of pier-soil and deformation modulus of the composite foundation was analyzed after reinforcement. This paper presents methods for determining the coefficient on the bearing capacity evaluation and deformation modulus of composite foundation with DC1L Reinforcement case of DCR is highly effective in saline soils of the salt lake regions, which helps the mi-tion of water and salt in saline soils.The mechanical property of saline soils varies with moisture and climate in the cold and salt lake region of Qinghai-Tibet Plateau, which influences project construction. In order to improve foundation reinforcement effect of the QarharvaTrolmud Highway, Qinghai Province, China, dynamic compaction replacement （DCR） composite foundation was applied in saline soils. A field experiment was conducted in this area, where strength and working mechanism of pier-soil and deformation modulus of the composite foundation was analyzed after reinforcement. This paper presents methods for determining the coefficient on the bearing capacity evaluation and deformation modulus of composite foundation with DC1L Reinforcement case of DCR is highly effective in saline soils of the salt lake regions, which helps the mi-tion of water and salt in saline soils.

关 键 词：dynamic compaction replacement saline soils reinforcement effects 

分 类 号：TU472.31[建筑科学—结构工程] TU448[建筑科学—土工工程]