摘要
土工试验作为获取岩土体物理力学参数的基本手段,在工程设计、施工以及质量检测中起着十分重要的作用。结合多年来土工试验工作的经验体会,提出了对一些相关问题的看法。①以唐山某电厂土样为例,探讨了广泛分布于河北、内蒙古地区具有一定黏粒含量的特殊砂土的力学特性;②结合技术规范的试验要求对固结试验方法中"固结压力"和"应变控制连续加荷"提出了见解;③针对北方地区含水率较小的非饱和土的特性,分析了土抗剪强度试验操作难和结果失真的原因。最后提出了几点有利于工程实际应用的建议。
As the basic method to obtain rock and soil's physical-mechanical parameters,the soil test plays an important role in engineering design,construction and quality inspection.According to the experiences of doing experimental work over the years,the author offered their thoughts on a number of related issues.①Taking the soil sample of a power plant in Tangshan for example,the mechanical properties of a special sand with certain clay in it,which is widely distributed in Hebei and Inner Mongolia are discussed.②Combining with the test requirements in technical standards,some viewpoints on 'the pressure of consolidation' and 'continuous loading with strain control ' in consolidation test,are put forward.③For the characteristics of unsaturated soil with less water content in the northern region,the reasons why the soil shear strength test is difficult and the results are not exact,are analyzed.Finally,some advices in favor of practical applications in projects are proposed.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2009年第S2期391-393,共3页
Rock and Soil Mechanics
关键词
黏粒含量
砂土
非饱和土
分类
固结试验
抗剪强度试验
clay content
sand
unsaturated soil
classification
consolidation test
shear strength test
