An improved numerical manifold method with multiple layers of mathematical cover systems for the stability analysis of soil-rock-mixture slopes

An improved numerical manifold method with multiple layers of mathematical cover systems for the stability analysis of soil-rock-mixture slopes
复制标题

土石混合体边坡稳定性分析的多层数学覆盖系统改进数值流形法

DOI:
10.1016/j.enggeo.2019.105373
复制
发表时间:
2020
影响因子:
7.4
通讯作者:
Yan Chengzeng
Yan Chengzeng
中科院分区:
地球科学1区
文献类型:
--
作者:
Yang Yongtao;Sun Guanhua;Zheng Hong;Yan Chengzeng

文献摘要

参考文献

被引文献

相似文献

为了进行土石混合体边坡的稳定性分析,提出了一种改进的多层数学覆盖数值流形方法。对于SRM问题,改进的NMM的计算成本小于传统的NMM。此外,还提出了一种改进的抗剪强度折减技术(ISSRT),可以消除边坡的虚假塑性变形。基于改进的多层数学覆盖NMM方法,对一个均质边坡和两个不同块体含量的SRM边坡进行了稳定性分析。对3种边坡的数值计算结果表明:1)所提出的数值模型能够获得高精度的边坡FOS; 2)岩块含量越大,边坡FOS越大; 3)由于岩块的存在,边坡的破坏模式不同于均质边坡。
In order to carry out stability analysis of soil-rock-mixture(SRM) slopes, an improved numerical manifold method (NMM) with multiple layers of mathematical cover systems is proposed. For SRM problems, the computational cost of the improved NMM is smaller than that of the traditional NMM. Besides, an improved shear strength reduction technique(ISSRT) which can eliminate spurious plastic deformation of the slopes is implemented. Based on the improved NMM with multiple layers of mathematical cover systems, the stability of three slopes, namely, a homogeneous slope and two SRM slopes with different contents of rock blocks is analyzed. The numerical results about the three slopes indicate that: 1) the proposed numerical model can obtain the FOS of a slope with high accuracy; 2) the bigger the content of rock blocks, the larger the FOS of the SRM slope will be; 3) due to the existence of rock blocks, the failure mode of a SRM slope is different from that of a homogeneous soil slope.
DOI: 10.1007/978-1-4612-0575-3_12
发表时间: 1998
期刊: --
影响因子: --
作者:
B. Reddy
通讯作者: B. Reddy
DOI: 10.1016/j.ijrmms.2012.12.046
发表时间: 2013-06-01
影响因子: 7.2
作者:
Fan, L. F.;Wong, L. N. Y.
通讯作者: Wong, L. N. Y.
使用改进的数值流形方法和多层数学覆盖系统对土石混合体边坡进行顺序开挖分析
DOI: 10.1016/j.enggeo.2019.105278
发表时间: 2019
影响因子: 7.4
作者:
Yang Yongtao;Sun Yinghao;Sun Guanhua;Zheng Hong
通讯作者: Zheng Hong
适合裂纹分析的连续节点应力数值流形方法的四节点四边形单元
DOI: 10.1016/j.compstruc.2016.08.008
发表时间: 2016-12
期刊: COMPUTERS %26 STRUCTURES
影响因子: --
作者:
Yang Yongtao;Sun Guanhua;Zheng Hong;Fu Xiaodong
通讯作者: Fu Xiaodong
DOI: --
发表时间: 2006
期刊: Chinese Journal of Geotechnical Engineering
影响因子: --
作者:
Long Wan-xue
通讯作者: Long Wan-xue