Vane Tests in a Norwegian Quick-Clay
Vane Tests in a Norwegian Quick-Clay
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DOI：
10.1680/geot.1950.2.1.58
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发表时间：
1950-06
期刊：
影响因子：
5.8
通讯作者：
J. B. Hansen
中科院分区：
文献类型：
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作者：
J. B. Hansen
在挪威的霍滕港，对约30米厚的冰后期粉质粘土层进行了各种岩土工程调查。粘土的平均液限和塑限分别为32%和16%，而天然含水量略高于液限。这意味着粘土是一种所谓的“速粘土”，在重塑时几乎变成液体;它的灵敏度为100。通过对试样的圆锥试验、快剪试验和现场十字板试验，研究了抗剪强度与深度的关系。十字板试验表明，抗剪强度在深度约为7米时基本保持不变，然后与深度成正比地增加，c/p之比为0·18，其中c表示抗剪强度，p表示有效上覆压力。圆锥试验和快剪试验的抗剪强度与试验结果吻合较好。
Synopsis In the harbour of Horten, in Norway, various geotechnical investigations have been carried out in a stratum of post-glacial silty clay about 30 metres thick. The clay has average liquid and plastic limits of 32 per cent. and 16 per cent. respectively, whereas the natural water content is somewhat greater than the liquid limit. This means that the clay is a so-called “quick-clay,” which becomes practically liquid on remoulding; it has a sensitivity of the order of 100. The relationship between shear strength and depth has been investigated by means of cone tests and quick shear tests on samples, and by vane tests in situ. The vane tests show that the shear strength remains essentially constant to a depth of about 7 metres and then increases in direct proportion to the depth, the ratio c/p being 0·18, where c denotes shear strength and p denotes effective overburden pressure. The cone tests and the quick shear tests both indicate shear strengths which agree reasonably well with the results of the v...