COMPARISON OF CALCULATIONAL APPROACHES FOR STRUCTURAL DEFORMATION IN JOINTED ROCK

被引：15

作者：

SENSENY, PE ^{[1
]}

SIMONS, DA ^{[1
]}

机构：

[1] LOGICON RDA,LOS ANGELES,CA 90009

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS | 1994年 / 18卷 / 05期

关键词：

Computer codes - Direct interacting block systems - Jointed rock;

D O I：

10.1002/nag.1610180504

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Results from five different computer models for structural deformation in jointed rock are compared for a problem involving stress-wave loading of a lined circular tunnel in a jointed medium. The computer models include two discrete element codes, The Direct Interacting Block Systems (DIBS) and The Universal Distinct Element Code (UDEC), and three finite element codes, The Finite Element Code for Largely Explicit Calculation (FLEX), The Explicit Calculations of Interacting Bodies Under Rapid Loading Code (EXCALIBUR), and PRONTO. The finite element codes used either slidelines or joint elements to simulate the motion on joints. All codes had some difficulties with a sequence of preliminary problems solved to 'shake down' the computer codes. However, most of the shortcomings of each code were readily overcome. Results showed that three codes could obtain similar answers for tunnel closure, stress around the tunnel and slip on the joints.

引用

页码：327 / 344

页数：18

共 9 条

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