Lower Bound Limit Analysis of Non-Persistent Jointed Rock Masses Using Mixed Numerical Discretization

被引：2

作者：

Liu, Wenlian ^{[1
]}

Xu, Hanhua ^{[2
]}

Sui, Sugang ^{[1
]}

Li, Ze ^{[3
]}

Zhang, Xiaoyan ^{[3
]}

Peng, Pu ^{[3
]}

机构：

[1] China Nonferrous Met Ind Co Ltd, Kunming Prospecting Design Inst, Kunming 650051, Peoples R China

[2] Yunnan Key Lab Geotech Engn & Geohazards, Kunming 650051, Peoples R China

[3] Kunming Univ Sci & Technol, Fac Civil Engn & Mech, Kunming 650500, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2022年 / 12卷 / 24期

基金：

中国国家自然科学基金;

关键词：

jointed rock masses; bearing capacity; limit analysis; lower bound method; mixed numerical discrete method; STABILITY ANALYSIS; SLOPE STABILITY; BEARING CAPACITY; FINITE-ELEMENTS; DEFORMATION; FOOTINGS; FAILURE; MODEL;

D O I：

10.3390/app122412945

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The bearing capacity of a non-persistent jointed rock mass containing a rock bridge is investigated by combining the lower bound limit analysis theory, a mixed numerical discrete method, and linear mathematical programming. A mixed numerical discrete method is proposed to divide non-persistent jointed rock masses in which rigid block elements are used to simulate the rock blocks, whereas the finite element method is used to simulate the intact rock bridges. A linear mathematical programming model for the ultimate bearing capacity is constructed and solved using the interior point algorithm. The proposed formulation is validated by application to three rock slopes.

引用

页数：20

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