基于PFC3D的岩体中不整合面构建方法研究

系统仿真学报 ›› 2015, Vol. 27 ›› Issue (11): 2837-2843.

基于PFC3D的岩体中不整合面构建方法研究

崔铁军^1,2,3, 马云东³, 王来贵⁴

1.辽宁工程技术大学安全科学与工程学院,阜新 123000;
2.矿山热动力灾害与防治教育部重点实验室,阜新 123000;
3.大连交通大学辽宁省隧道与地下结构工程技术研究中心,大连 116028;
4.辽宁工程技术大学力学与工程学院,阜新 123000

收稿日期:2014-02-12 修回日期:2014-09-13 出版日期:2015-11-08 发布日期:2020-08-05
作者简介:崔铁军(1983-),男,沈阳,博士后,讲师,研究方向为安全理论、数值模拟、算法;马云东(1964-),男,内蒙古赤峰,蒙古族,教授,博导,研究方向为安全科学与工程,环境科学与工程。
基金资助:
国家自然科学基金（51274110）(51474121); 国家自然基金煤炭联合基金重点项目(U1361211)

Research on Simulation Method of Unconformity Surface in Rock Mass Based on PFC3D

Cui Teijun^1,2,3, Ma Yundong³, Wang Laigui⁴

1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China;
2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin 123000, China;
3. Tunnel & Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028, China;
4. School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China

Received:2014-02-12 Revised:2014-09-13 Online:2015-11-08 Published:2020-08-05

摘要/Abstract

摘要： 为了对地下岩土体进行精确建模,考虑到岩层之间的不整合面对模拟的影响,提出使用基于颗粒流理论的PFC3D模拟岩体中不同岩层接触情况的方法,包括：整合、平行不整合、角度不整合的接触情况。模型构造步骤包括：定义岩体坐标系,确定接触面走向的关键坐标点,使用MATLAB拟合这些走向曲线并得到曲线参数,使用下落法构造岩层,使用FISH根据走向曲线参数形成接触面。构建后的模型满足上述要求,证明了与实际岩体力学性能是接近的。该方法可为考虑岩层接触面的建模提供一种有效途径。

关键词: 岩土体模拟, 接触面, 下落法, PFC3D, 平行不整合, 角度不整合

Abstract: In order to accurately simulate the rock mass, considering the effects of the unconformity to simulation, the method was purposed to simulate the different contact situation using PFC3D based on the Particle flow theory, include: integration, parallel unconformity, angular unconformity. Simulation step include: define the rock coordinate system; determine the key points of contact trend; use MATLAB to fit the trend curve and get the parameters; use PFM to construct the model; shaping contact surface using FISH according the parameters. The structured model satisfies the above requirements, which proved the model is close to the actual rock mass mechanics performance.

Key words: simulation of rock mass, contact surface, Particles Fall Method, PFC3D, parallel unconformity, angular unconformity

中图分类号:

P62
TD15

崔铁军, 马云东, 王来贵. 基于PFC3D的岩体中不整合面构建方法研究[J]. 系统仿真学报, 2015, 27(11): 2837-2843.

Cui Teijun, Ma Yundong, Wang Laigui. Research on Simulation Method of Unconformity Surface in Rock Mass Based on PFC3D[J]. Journal of System Simulation, 2015, 27(11): 2837-2843.