应力-渗流耦合三轴渗透试验系统研制及其在充填介质渗透特性试验中的应用

doi:10.16285/j.rsm.2017.10.035

›› 2017, Vol. 38 ›› Issue (10): 3053-3061.doi: 10.16285/j.rsm.2017.10.035

应力-渗流耦合三轴渗透试验系统研制及其在充填介质渗透特性试验中的应用

李利平^{1, 2}，柳尚¹，李术才¹，石少帅¹，陈迪杨^{1, 3}，周毅¹，林鹏¹，王健华¹，刘聪¹

1. 山东大学岩土与结构工程研究中心，山东济南 250061；2. 华南理工大学亚热带建筑科学国家重点实验室，广东广州 510640； 3. 山东大学新材料与智能装备研究院，山东德州 251100

收稿日期:2015-09-08 出版日期:2017-10-10 发布日期:2018-06-05
通讯作者: 石少帅，男，1987年生，博士，讲师，主要从事隧道不良地质超前预报与综合治理方面的工作。E-mail: sss_sdu@163.com E-mail: yuliyangfan@163.com
作者简介:李利平，男，1981年生，博士，教授，主要从事隧道及地下工程突涌水灾变机制的理论及试验研究
基金资助:
国家自然科学基金面上基金(No. 51679131)；山东省自然科学基金(No. 2014ZRE27303)；山东省杰出青年基金项目(No. JQ201611)；国家自然科学基金(No. 51609129)；华南理工大学亚热带建筑科学国家重点实验室开放研究项目(No. 2016ZB07)。

Development of testing system for coupled seepage and triaxial stress measurements and its application to permeability characteristic test on filling medium

LI Li-ping^{1, 2}, LIU Shang¹, LI Shu-cai¹, SHI Shao-shuai¹, CHEN Di-yang^{1, 3}, ZHOU Yi1, LIN Peng¹, WANG Jian-hua¹, LIU Cong¹

1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan, Shandong 250061, China; 2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, Guangdong 510640, China; 3. New Material and Intelligent Equipment Research Institute, Shandong University, Dezhou, Shandong 251100, China

Received:2015-09-08 Online:2017-10-10 Published:2018-06-05
Supported by:
This work was supported by the General Program of National Natural Science Foundation of China(51679131), the National Natural Science Foundation of Shandong Province(2014ZRE27303), the Foundation for Distinguished Young Scholars of Shandong Province(JQ201611), the National Natural Science Foundation of China(51609129) and the Open Program of State Key Laboratory of Subtropical Building Science South China University of Technology (2016ZB07).

摘要/Abstract

摘要： 为研究充填介质在赋存条件下的渗透、力学特性及其破坏机制，改进研制了大比尺三轴应力-渗流耦合试验系统，开发了三维应力-渗流耦合压力室，进行了完善的密封和加载系统设计。系统具备自动化轴压加载、围压渗压加载、涌水涌砂量采集和多元信息并行监测等功能，该套装置可针对大尺寸、不同规格岩溶管道和裂隙还原其在原始地应力状态下进行渗透性及相关力学试验研究。围压、渗压值可分别加到2 MPa和5 MPa，轴向荷载最大可加到300 kN。光纤技术、电阻元件柔性防水技术和自动化数据采集分析系统的应用，实现了水环境下试件内部渗压、应变的精确采集和分析。在试验系统的基础上，开展了赋存环境下充填介质渗透特性试验研究，分析了充填介质类型、渗流路径、管道断面形状及应力条件4种因素对渗透特性的影响及充填介质的响应特征，揭示了充填体稳定性和渗透性的变化规律。该装置解决了小水力梯度及赋存条件下的充填介质渗透特性和力学性质试验研究技术难题，具有重要意义。

关键词: 充填型岩溶管道, 充填介质, 渗流特性, 试验系统

Abstract: To investigate the permeability characteristics of filling media and its mechanical properties and failure mechanisms under high water pressure conditions, a large-scale testing system was developed for the measurement of coupled seepage and triaxial stress. We proposed a pressure chamber especially for coupling three-dimensional (3D) seepage-stress, and designed a perfect sealing and loading system. This system has multiple functions including automatically applying triaxial stress, surrounding rock pressure and osmotic pressure, gushing water and sand acquisition and monitoring parallel multivariate information. It can be used to perform the tests of permeability and correlative mechanics measurement for large-scale and different patterns karst conduit and karst fissure under the initial confining pressure. The maximum applied lateral pressure and permeability pressure are up to 2 MPa and 5 MPa, respectively. The maximum axial loading capacity is 300 kN. The precise acquisition and analysis of seepage pressure, strain and displacement in the water environment can be achieved by the fibre technology, flexible waterproof technology of resistor elements and automatic data acquisition system. The permeability tests were conducted on filling medium under the condition of occurrence, and seepage characteristics of different kinds of filling medium were systematically analysed. The seepage failure model of filling medium was further revealed. Therefore, the developed system provides a new testing method for hydropower and tunnelling engineering.

Key words: filled-type karst conduit, filling medium, seepage characteristics, experimental system

中图分类号:

TU 458

李利平，柳尚，李术才，石少帅，陈迪杨，周毅，林鹏，王健华，刘聪,. 应力-渗流耦合三轴渗透试验系统研制及其在充填介质渗透特性试验中的应用[J]. , 2017, 38(10): 3053-3061.

LI Li-ping, LIU Shang, LI Shu-cai, SHI Shao-shuai, CHEN Di-yang, ZHOU Yi,LIN Peng, WANG Jian-hua, LIU Cong，. Development of testing system for coupled seepage and triaxial stress measurements and its application to permeability characteristic test on filling medium[J]. , 2017, 38(10): 3053-3061.

参考文献

相关文章 15

[1]	王珂, 盛金昌, 郜会彩, 田晓丹, 詹美礼, 罗玉龙, . 应力−渗流侵蚀耦合作用下粗糙裂隙渗流特性研究[J]. 岩土力学, 2020, 41(S1): 30-40.
[2]	李博, 黄嘉伦, 钟振, 邹良超, . 三维交叉裂隙渗流传质特性数值模拟[J]. 岩土力学, 2019, 40(9): 3670-3768.
[3]	王鹏飞, 谭文辉, 马学文, 李子建, 刘景军, 武洋帆, . 不同粗糙度和隙宽贯通充填裂隙渗流特性试验研究[J]. 岩土力学, 2019, 40(8): 3062-3070.
[4]	张天军, 庞明坤, 蒋兴科, 彭文清, 纪翔, . 负压对抽采钻孔孔周煤体瓦斯渗流特性的影响[J]. 岩土力学, 2019, 40(7): 2517-2524.
[5]	王鹏飞, 李长洪, 马学文, 李子建, 刘景军, 武洋帆, . 断层带不同含石率土石混合体渗流特性试验研究[J]. 岩土力学, 2018, 39(S2): 53-61.
[6]	肖晓春, 丁鑫, 潘一山, 吕祥锋, 吴迪, 王磊, 樊玉峰, . 含瓦斯煤岩真三轴多参量试验系统研制及应用[J]. 岩土力学, 2018, 39(S2): 451-462.
[7]	丁红岩，贾楠，张浦阳, . 砂土中筒型基础沉放过程渗流特性和沉贯阻力研究[J]. , 2018, 39(9): 3130-3138.
[8]	刘镇，周翠英，陆仪启，林振镇, . 软岩水-力耦合的流变损伤多尺度力学试验系统的研制[J]. , 2018, 39(8): 3077-3086.
[9]	周辉，姜玥，卢景景，胡大伟，张传庆，陈珺，李震, . 岩石空心圆柱扭剪试验系统研制[J]. , 2018, 39(4): 1535-1542.
[10]	赵开，彭守建，大久保诚介，许江，张海龙,. 基于应力归还法的单轴拉伸伺服控制试验系统的研制与应用[J]. , 2017, 38(S1): 284-290.
[11]	王志良，申林方，李邵军，徐则民，. 基于格子Boltzmann方法的岩体单裂隙面渗流特性研究[J]. , 2017, 38(4): 1203-1210.
[12]	陈旭，张俊文，. 岩石动态扰动伺服三轴试验系统的研制与应用[J]. , 2017, 38(3): 918-924.
[13]	张伟杰，李术才，魏久传，张庆松，张霄，李志鹏，谢道雷,. 三维注浆模型试验系统研制及应用[J]. , 2016, 37(3): 902-911.
[14]	李浩然，杨春和，陈锋，马洪岭，巫尚蔚,. 岩石声波-声发射一体化测试装置的研制与应用[J]. , 2016, 37(1): 287-296.
[15]	盛金昌，白柯含，杨旭，郑忠巍，詹美礼，孙永军，杨慧，. 膨润土防水毯破损条件下渗流特性试验研究[J]. , 2015, 36(S2): 315-320.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

应力-渗流耦合三轴渗透试验系统研制及其在充填介质渗透特性试验中的应用

Development of testing system for coupled seepage and triaxial stress measurements and its application to permeability characteristic test on filling medium

PDF (Chinese)

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0