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[1]王恩志,张 东,刘晓丽,等.裂隙岩体多结构多流态渗流模型与模拟[J].地球科学与环境学报,2022,44(06):894-902.[doi:10.19814/j.jese.2022.11022]
　WANG En-zhi,ZHANG Dong,LIU Xiao-li,et al.Seepage Model and Simulation of Multi-structure and Multi-flow in Fractured Rock Mass[J].Journal of Earth Sciences and Environment,2022,44(06):894-902.[doi:10.19814/j.jese.2022.11022]
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第44卷
期数:
2022年第06期
页码:
894-902
栏目:
纪念刘国昌先生诞辰110周年专辑
出版日期:
2022-11-15

文章信息/Info

Title:
Seepage Model and Simulation of Multi-structure and Multi-flow in Fractured Rock Mass
文章编号:
1672-6561(2022)06-0894-09
作者:
王恩志; 张 东; 刘晓丽; 吴春璐; 马前驰; 王明阳; 姚文理
(清华大学 水沙科学与水利水电工程国家重点实验室,北京 100084)
Author(s):
WANG En-zhi;  ZHANG Dong;  LIU Xiao-li;  WU Chun-lu;  MA Qian-chi;  WANG Ming-yang;  YAO Wen-li
(State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China)
关键词:
裂隙岩体;  管道流;  混合流;  非线性流;  多结构;  多流态;  数学模型;  模拟
Keywords:
fractured rock mass;  pipeline flow;  mixed flow;  nonlinear flow;  multi-structure;  multi-regime flow;  mathematical model;  simulation
分类号:
P641; TU457
DOI:
10.19814/j.jese.2022.11022
文献标志码:
A
摘要:
复杂裂隙系统多结构和多流态渗流一直是裂隙岩体渗流理论研究的难点问题。基于裂隙岩体渗透空间结构和渗流特性,按管状孔洞、面状裂缝、带状断层和块状岩体所构成的多结构渗透介质构建三维渗流数值方程,基于单一结构的线性渗流、非线性渗流、层流-过渡流-湍流统一流态公式,推导了多流态渗流方程,给出多结构多流态渗流模型的求解方法。通过管道流试验和三维裂隙网络渗流试验与数值模拟分析结果对比,探讨了模型的合理性与适用性,并探讨了大尺度岩体离散-连续组合渗流模型的实用性,为精细模拟裂隙岩体渗流问题提供了参考。
Abstract:
Multi-structure and multi-regime flow in complex fractured system has always been a difficult problem in the study of fracture rock mass seepage theory. Based on the spatial structure and seepage characteristics of fractured rock mass, a three-dimensional seepage numerical equation was constructed according to the multi-structure medium composed of tubular pores, planar fractures, zonal faults, and massive rock mass. Focusing on the transition and evolution of linear flow, nonlinear flow, laminar flow-transition flow-turbulent flow in single structure, the multi-regime flow equation was derived, and numerical method of multi-structure and multi-regime seepage model was given. By comparing the results of pipeline flow test and three-dimensional fractured network seepage test with the numerical simulation analysis, the rationality and applicability of the model were discussed, and the practicability of large-scale discrete and continuous combined seepage model of rock mass was discussed, which provides a reference for fine simulation of fractured rock mass seepage problem.

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备注/Memo

备注/Memo:
收稿日期:2022-11-08
基金项目:国家自然科学基金重大项目(52090081); 清华大学水沙科学与水利水电工程国家重点实验室自主项目(2022-KY-02)
作者简介:王恩志(1958-),男,辽宁营口人,教授,博士研究生导师,工学博士,E-mail:nzwang@mail.tsinghua.edu.cn。

更新日期/Last Update: 2022-11-25