王彪, 闫长红, 吴润江, 许肖锋. 2015: 阿尔金山前第四纪松散砂土工程地质特性分析. 工程地质学报, 23(s1): 218-222. DOI: 10.13544/j.cnki.jeg.2015.s1.035
    引用本文: 王彪, 闫长红, 吴润江, 许肖锋. 2015: 阿尔金山前第四纪松散砂土工程地质特性分析. 工程地质学报, 23(s1): 218-222. DOI: 10.13544/j.cnki.jeg.2015.s1.035
    WANG Biao, YAN Changhong, WU Runjiang, XU Xiaofeng. 2015: RESEARCH ON ENGINEERING GEOLOGICAL PROPERTIES OF QUATERNARY LOOSE SAND IN THE FRONTAL AREAS OF ALTYN MOUNTAINS. JOURNAL OF ENGINEERING GEOLOGY, 23(s1): 218-222. DOI: 10.13544/j.cnki.jeg.2015.s1.035
    Citation: WANG Biao, YAN Changhong, WU Runjiang, XU Xiaofeng. 2015: RESEARCH ON ENGINEERING GEOLOGICAL PROPERTIES OF QUATERNARY LOOSE SAND IN THE FRONTAL AREAS OF ALTYN MOUNTAINS. JOURNAL OF ENGINEERING GEOLOGY, 23(s1): 218-222. DOI: 10.13544/j.cnki.jeg.2015.s1.035

    阿尔金山前第四纪松散砂土工程地质特性分析

    RESEARCH ON ENGINEERING GEOLOGICAL PROPERTIES OF QUATERNARY LOOSE SAND IN THE FRONTAL AREAS OF ALTYN MOUNTAINS

    • 摘要: 通过不同含水率室内剪切试验、天然含水率条件下的现场直剪试验和原位变形试验, 获得了阿尔金山前某工区砂土的岩土力学参数。试验结果表明:随试件含水率的增大, 砂土地层易发生崩解, 其抗剪断强度降低, 天然含水率条件下, 砂土的抗剪强度参数室内试验值(c为0.160MPa, 为37.8)略高于原位试验值(c为0.157MPa, 为36.4), 工区介质均一性较好, 两组模量值接近, 其平均变形模量为122MPa, 平均弹性模量为242MPa。

       

      Abstract: By carrying out the laboratory shear tests of the different moisture content, in-situ shear and deformation tests. The results show that the sand stratum prones to disintegration and the shear strength is reducted along with the increase of the moisture content of specimens. Under the natural moisture content, the value of the laboratory shear strength is slightly higher than that of the in-situ test. The cohesive force are 0.160MPa and 0.157MPa individually. The internal friction angle are 37.8 and 36.4 individually. The in situ test results can be used to optimizing the design of the project. The uniformity of sand soil in working area is comparatively well and the deference of two modulus test values is small. The mean value of deformation modulus and Young's modulus are 122MPa and 242MPa individually.

       

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