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author:

王浩 (王浩.) [1]

Indexed by:

CQVIP

Abstract:

基于挖方边坡应力重分布与应变局部化过程的数值模拟,将边坡开挖松弛过程划分为弹性松弛、塑性松弛产生、塑性松弛扩大和整体松弛失稳4个阶段;分析结果表明:正负分区揭示边坡开挖松弛的力学本质,可以用来确定开挖松弛区的范围,进而提出接近挖方坡面的开挖松驰区(负值区)、远离开挖坡面的原岩应力区(零值区)和介于两者之间的应力集聚区(正值区)的分区方案;并通过与相关方法的比较,表明该方法力学概念明确,计算方法简单,是挖方边坡设计中确定开挖松弛区的实用方法。

Keyword:

开挖卸荷 挖方边坡 数值模拟 松弛区

Community:

  • [ 1 ] 福州大学环境与资源学院,福州350108

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Source :

石河子大学学报:自然科学版

ISSN: 1007-7383

Year: 2011

Issue: 5

Volume: 29

Page: 623-628

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 3

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