院报 ›› 2019, Vol. 36 ›› Issue (3): 145-150.DOI: 10.11988/ckyyb.20171049

• 仪器设备与测试技术 • 上一篇    

岩石THMC多因素耦合试验系统研制与应用

盛金昌1, 杜昀宸1, 周庆1, 李凤滨2, 贾春兰3, 刘星星1, 詹美礼1, 罗玉龙1   

  1. 1.河海大学 水利水电学院,南京 210098;
    2.大伙房水库输水工程建设局,沈阳 110166;
    3.新疆博衍水利水电环境科技有限公司,乌鲁木齐 830000
  • 收稿日期:2017-09-12 出版日期:2019-03-01 发布日期:2019-03-20
  • 作者简介:盛金昌(1969-),男,安徽枞阳人,教授,博士,博士生导师,主要从事岩体渗流及流-固-热-化多场耦合方面的教学与科究工作。E-mail: jinchang@hhu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51579078,51474204,51679070);中央高校基本科研业务费专项(2015B20514);江苏省普通高校研究生科研创新计划项目(KVLX15_0434)

Development and Application of a Permeability Test System for Rock Coupling Thermal-Hydrological-Mechanical-Chemical Processes

SHENG Jin-chang1, DU Yun-chen1, ZHOU Qing1, LI Feng-bin2, JIA Chun-lan3, LIU Xing-xing1, ZHAN Mei-li1, LUO Yu-long1   

  1. 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China;
    2.Water Conveyance Construction Bureau of Dahuofang Reservoir, Shenyang 110166, China;
    3.Xinjiang Boyan Water Conservancy and Hydropower Environmental Technology Company, Urumqi 830000, China
  • Received:2017-09-12 Online:2019-03-01 Published:2019-03-20

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摘要： 为研究复杂环境下(高应力、高水压、高温、水化学等)岩石渗透特性演化规律,研制了渗流-温度-应力-化学(THMC)多因素耦合作用下岩石渗透特性试验系统。该系统在应力加载系统、渗透压控制系统的基础上扩充了控温系统和化学溶液自配系统,轴向荷载最大可加到1 500 kN,可进行高应力(30 MPa)、高水压(30 MPa)、高温(150 ℃)和低温(-20 ℃)、化学(酸性或碱性环境)等条件下岩石试件的渗透特性测试研究,并可进行岩石变形和渗透、应力耦合的全过程试验研究,是在原有岩石应力-渗流耦合试验设备基础上进一步增加了可直接加载的温度场和与渗流场结合的化学环境对岩石渗流特性的影响而发展的一套全新设备。利用该系统进行了多场耦合条件下岩石的渗透特性试验研究,验证了该试验系统的可靠性,对研究在多物理场耦合作用下岩石介质渗流特性提供了重要研究手段。

关键词: 渗透试验系统, THMC耦合过程, 渗透特性, 多通道控制, 多场耦合试验

Abstract: To better study the permeability of rock under complex conditions (high stress, high water pressure, high temperature, and hydrochemical action), we researched and developed a test system coupling thermal, hydrological, mechanical and chemical (THMC) processes. By directly applying temperature field, seepage field, as well as chemical environment, the test system is a brand new system based on the existing stress-seepage coupling test system. On the basis of stress loading system and osmotic pressure control system, we added temperature control system and self-mixing chemical solution system. The maximum axial load of the test system could reach 1 500 kN. By this system, we could perform permeability tests of fractured rock in coupled conditions: high stress (30 MPa), high water pressure (30 MPa), high temperature (150 ℃) or low temperature (-20 ℃), and chemical action (in strong acid or strong alkaline environment). Moreover, we could also perform test coupling rock deformation, rock permeability and stress processes. We applied the proposed system to many coupled permeability tests and verified its reliability.

Key words: permeability test system, coupled THMC processes, permeability, multi-channel control, multi-field coupling tests

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