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位置：首页 >> 期刊文章
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摘要：
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目前软土直剪试验有三种不同方法,传统方法,地矿部方法和随机方法。三种试样排列方法将得到不同的剪切成果。经分析,传统方法将导致τ—P曲线反时针偏转,φ值增大,c值偏小,应予废止。当子样个数很多时,宜用随机排列方法,地矿部排列方法可弥补小子样情况下的局限性。文中还对有关规范对每组试样的容重差规定进行了讨论,就我国沿海软土特点而言,目前的规定是偏严的,应予放宽。
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At present, there are 3 different methods of soft soil direct shear tests, namely traditional method,Geology & Ore Ministry method and random method. 3 different methods of specimen arrangement will result in different shear results. The analysis showed that the traditional method would cause Z—P curve deviated counter— clockwisecy, φ value increased and C value underestimated,so that such method should be abolished. When the number of soil specimens is large enough, the random arrasgement will be most suitable,while the method issued by the Geology &. Ore Ministry can complement the limitation existing in the case of less number of specimens. The paper also offered a discussion on the specifications for the unit weight variation. As far as the soft soil along the coastal area in China concerned, the present specification is on the rigorous side and should be softened.
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基金项目：
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作者简介：
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参考文献：
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(1) 土工试验规程 SD128-84 第一分册(第二版) 水利电力部 1987年8月
(2) 土工试验规程 DT-82 地质矿产部 1987年7月
(3) 公路土工试验规程 JTJ 051-85 1986 交通部
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