重塑黄土强度试验研究  

Strength Test Analysis of Reconstituted Loess

作　　者：张文毅[1] 党进谦[1] 朱彭涛[1] 赵璐[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《水电能源科学》2011年第5期53-55,174,共4页Water Resources and Power

摘　　要：为探讨重塑黄土强度特性,通过直剪固结快剪试验分析了重塑正常固结土样在不同含水率和干密度下的强度特性,并通过卸载、直剪快剪试验探讨了含水率与超固结比对超固结土强度的影响。结果表明,含水率与超固结比为影响重塑超固结黄土抗剪强度的重要因素,严格控制黄土相关指标是确保工程稳定的基础。With the objective of investigating strength characteristics of reconstituted loess, consolidated quick direct shear tests are performed to study strength characteristics of reconstituted and normally consolidated soils at different rates of water content and dry densities, and influences of the rates of water content and overconsolidation ratios on recon- stituted overconsolidated soil are investigated with tests of unloading and quiek direct shear. The results show that the rates of water content and overeonsolidation ratios are two key factors influencing shear strength of reconstituted overconsolidated loess. Thus, strict control of corresponding index of loess will set a stable basis for engineering construction.

关 键 词：重塑黄土 抗剪强度 正常固结土 超固结土 

分 类 号：TU411.7[建筑科学—岩土工程]