CAJ | 학술논문

随着越来越多高水头电站、深部地下工程的建设，工程中面临更多渗透失稳风险，必须通过现场试验系统研究裂隙岩体的高压渗透特性和渗透稳定性。通过现场揭示和水-岩相互作用关系，探讨裂隙岩体的高压渗透破坏机制和破坏模式。基于多个高水头电站中的高压压水试验和高压渗透试验成果，研究高水头压力作用下裂隙岩体的水力劈裂、渗透变形、抗冲蚀性能、渗透稳定耐久性等特性。研究成果表明，高压条件下裂隙岩体的渗透特性会发生显著改变，变化规律和特征与所作用的水压力、应力赋存环境和物质填充情况紧密相关。
수착월래월다고수두전참、심부지하공정적건설，공정중면림경다삼투실은풍험，필수통과현장시험계통연구렬극암체적고압삼투특성화삼투은정성。통과현장게시화수-암상호작용관계，탐토렬극암체적고압삼투파배궤제화파배모식。기우다개고수두전참중적고압압수시험화고압삼투시험성과，연구고수두압력작용하렬극암체적수력벽렬、삼투변형、항충식성능、삼투은정내구성등특성。연구성과표명，고압조건하렬극암체적삼투특성회발생현저개변，변화규률화특정여소작용적수압력、응력부존배경화물질전충정황긴밀상관。
With rapid construction of hydropower stations and deep underground projects under high water pressure,there are more and more seepage failure risks in these projects. As a result,the in-situ high pressure permeability must be tested and the high pressure permeability properties and seepage stability of rock masses must be systematically and thoroughly studied. In this work,according to the revealed phenomenon in field and the water-rock interactions,the seepage failure mechanisms and failure modes of fractured rock masses under high water pressure are discussed. In addition,based on high pressure packer tests or high pressure permeability tests of several hydropower sataions under high water head,the permeability properties such as hydraulic fracturing, seepage deformation,erosion resistance and long-term seepage stability are studied. The results indicate that:(1) The permeability properties of fractured rock masses can be remarkably changed by high water pressure. (2) The changes of permeability properties are quite correlative with water pressure,supporting environment of stress and fracture fillings.