| 卸荷状态下粘性土强度特性试验研究 |
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| 引用本文： | 潘林有,程玉梅,胡中雄.卸荷状态下粘性土强度特性试验研究[J].岩土力学,2001,22(4):490-493. |
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| 作者姓名： | 潘林有 程玉梅 胡中雄 |
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| 作者单位： | 1. 温州大学,建筑与土木工程学院,
2. 同济大学,地下建筑与工程系, |
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| 摘 要： | 通过大量的室内抗剪强度试验，提出了卸荷比、临界卸荷比、极限卸荷比和强度残留率概念。用卸荷比来衡量应力水平的变化，以探讨粘性土在卸荷状态下强度变化规律以及估算卸荷影响区的范围和影响区内强度的衰减规律，对基坑等卸荷类工程的设计和施工具有一定的指导意义。
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| 关 键 词： | 卸荷比 抗剪强度 强度残留率 粘性土 基坑 临界卸荷比 |
| 文章编号： | 1000-7598-(2001)04-0490-04 |
| 修稿时间： | 2000年8月22日 |
Experimental study on the shear strength of clay under the unloading state |
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| PAN Lin-you ,CHENG Yu-mei ,HU Zhong -Xiong.Experimental study on the shear strength of clay under the unloading state[J].Rock and Soil Mechanics,2001,22(4):490-493. |
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| Authors: | PAN Lin-you CHENG Yu-mei HU Zhong -Xiong |
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| Institution: | PAN Lin-you 1,CHENG Yu-mei 2,HU Zhong -Xiong 2 |
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| Abstract: | Through many direct shearing tests,shear strength of unloading was studied.The concept of unloading ratio and the residual strength were put forth.Stress level variation was evaluated by unloading ratio for studying the strength variation of clay under unloading condition,and for estimating the range of the unloading influence region,and the strength attenuation in this region.The study in this paper can provice some guidance to design and construction in such unloading projects as foundation pit. |
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| Keywords: | unloading ratio shear strength residual strength rate |
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