摘要
通过敏感性试验,对土体的天然密度、含水量、粘结力和内摩擦角等物理力学参数进行了统计分析。分析结果显示,土体的γ-φ关系主要呈现线性关系,且随着土体压实度的提高具有相关性弱化的趋势;土体的C-φ关系具有高度的二次非线性关系,压实度越高C、φ值越大;土体的ω-C-φ是物性参数和强度参数之间关系最为密切,在10％-13％之间的最佳含水量时强度参数最高;非饱和土体强度的提高本质上仍然是强度参数提高问题。研究成果对于岩土工程参数的正确取值具有较重要的参考价值。
Based on sensitive tests , the author makes the analysis of mathematical statistics among natural unit weight , water content, cohesion and friction angle. The results obvious the relationship of natural unit weight and water displays linear relationship , and go from strength to weakness along with adding pressure to the loose earth. C-φ displays distinct didislinear. ω-C-φ of high pressure is physical and mechanics parameters. When the containing water or moisture is from 10% to 13% , the pressure is highest. The increase of the pressure of unsaturated soil is the advance of pressure parameters in nature. The conclusion in the paper has the important reference value to select the proper parameters of earth.
出处
《重庆交通学院学报》
2003年第4期68-71,共4页
Journal of Chongqing Jiaotong University
基金
重庆市科委基金(199947)
