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本文报导了黄壁庄副坝和亮马桥大厦两处地基现场和室内测定粘性土最大动剪模量的结果。通过试验结果对比,强调了应力条件相对应的重要性,指出了固结时间不同是导致现场和室内最大动剪模量差别的主要原因,这一影响大小与土的塑性指数有关。考虑这一影响对室内最大动剪模量做出修正后,所得到的值与现场值相当接近。
This paper reports the results of determining the maximum dynamic shear modulus of cohesive soil at two site foundations and indoors in Huangbizhuang auxiliary dam and Liangmaqiao building. Through the comparison of test results, the importance of corresponding stress conditions is emphasized, and it is pointed out that the difference in consolidation time is the main cause of the difference in the maximum dynamic shear modulus between the field and the interior. This effect is related to the plasticity index of the soil. Taking into account this effect, after correcting the maximum dynamic shear modulus in the room, the values obtained are quite close to the field values.