This research experimentally studies coupled hydro-mechanical relationships using flattened Brazilian disks under confinement, with concurrent permeability measurements and acoustic emission monitoring. A series of tests are performed on concrete, as representative samples of brittle geo-materials, under a range of confining stresses between 2.76 and 13.79 MPa. Acoustic emission data is used to quantify damage and identify damage thresholds. Damage is then correlated to pre-peak changes in permeability. The advancement of models that couple transport properties to mechanical responses are of interest in the fields of carbon sequestration, hydrofracking, production of geothermal energy, induced seismicity, and underground nuclear waste storage, and these experiments validate a novel experimental approach towards investigating hydro-mechanical relationships.

这项研究在封闭的条件下，使用扁平的巴西圆盘，通过并发的渗透率测量和声发射监测，以实验方式研究了水力耦合关系。在2.76和13.79 MPa之间的限制应力范围内，对混凝土（作为脆性土工材料的代表性样品）进行了一系列测试。声发射数据用于量化损害并确定损害阈值。然后将破坏与峰值前通透性变化相关联。在碳固存，水力压裂，地热能生产，诱发地震和地下核废料存储等领域，将运输性质与机械响应相结合的模型的发展是令人感兴趣的，