首页> 外文会议>Geotechnical Engineering for Disaster Mitigation and Rehabilitation >EVALUATION OF IN-SITU SHEAR STRENGTH OF NATURAL SLOPES VULNERABLE TO HEAVY RAINFALL BY LIGHTWEIGHT DYNAMIC CONE PENETROMETER
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EVALUATION OF IN-SITU SHEAR STRENGTH OF NATURAL SLOPES VULNERABLE TO HEAVY RAINFALL BY LIGHTWEIGHT DYNAMIC CONE PENETROMETER

机译:用轻质动力圆锥穿刺仪评估易受重降雨影响的天然斜坡原位抗剪强度

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摘要

Shallow slope failures, induced by torrential rainfall, are common in the western Japan, where Masado, a regional soil made of decomposed granite, is widely distributed in natural slopes. There is quite a few information on the geotechnical conditions, because of the difficulty of ground investigation on steep slopes with lush vegetation. The lightweight dynamic cone penetration test (LWDCPT) has been used for geotechnical survey of natural Masado slopes in the region. Based on the results of direct shear tests and the laboratory calibration tests of LWDCPT, a method of determining shear strength parameters from the data of qd was proposed. The applicability of the proposed method was examined by comparing the strength parameters predicted by of qd values and those measured in the laboratory shear strength test with undisturbed samples at the same sites.
机译:由暴雨引起的浅层边坡破坏在日本西部很常见,那里的Masado是由腐烂的花岗岩制成的区域性土壤,广泛分布在自然边坡中。由于难以在植被茂密的陡坡上进行地面调查,因此有关岩土条件的信息很多。轻型动态圆锥穿透试验(LWDCPT)已用于对该地区天然Masado斜坡的岩土勘测。基于直接剪切试验的结果和LWDCPT的实验室校准试验,提出了一种根据qd数据确定剪切强度参数的方法。通过比较qd值预测的强度参数与在实验室剪切强度测试中测量的强度参数与相同位置的未扰动样品,来检验所提出方法的适用性。

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  • 来源
  • 会议地点 Nanjing(CN)
  • 作者

    ZHANG Zhijun;

  • 作者单位

    Takashi Tsuchida@Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama Higashi Hiroshima, 739 8527, Japan--A.M.R.G. Athapaththu@Department of Civil and Environmental Engineering, Ruhuna University, Hapugala, Galle, Sri Lanka--Seiji Kano@Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama Higashi Hiroshima, 739 8527, Japan--Kazuaki Suga@Shimizu Corporation, Tokyo, Japan--;

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  • 中图分类 灾害地质学;
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