CAJ | 학술논문

在多不良地质体存在条件下，不同建设阶段岩体质量级别判别结果常会出现较大差别，成为岩石工程建设中争论焦点之一。岩体质量分级可给出相应力学参数，但对复杂地质体的变形破坏模式难以区分，影响到合理的开挖和支护方案的制定。结合岩石工程目标，在地层岩性对比和相应物理力学特性区分基础上，划分出的工程地质岩组，成为了工程地质条件评价、分区和工程规划的重要基础。在岩石地下工程设计和施工中还需有岩体质量分级作为依据。前者是以岩体工程地质力学观点为基础的较大范围的定性分类，抓住地质体关键内因之一的岩体地质建造和构造改造来分类，有利于得出相应变形破坏模式；后者以单指标或多指标来计算评判岩体质量好坏，包括了工程岩体本身和所处地质环境因素。在岩石工程不同阶段和不同层次上，它们的依据和应用各有所长，对工程地质问题的大尺度超前预报和工程设计起着不同作用，而又有一定的交叉和重叠，结合起来运用可发挥合理解释变形破坏模式和对比不同阶段判别结果的工程效果。结合雁门关隧道工程，给出它们的应用情况对比，以便于其在不同工程建设中更好地区别运用。
재다불량지질체존재조건하，불동건설계단암체질량급별판별결과상회출현교대차별，성위암석공정건설중쟁론초점지일。암체질량분급가급출상응역학삼수，단대복잡지질체적변형파배모식난이구분，영향도합리적개알화지호방안적제정。결합암석공정목표，재지층암성대비화상응물리역학특성구분기출상，화분출적공정지질암조，성위료공정지질조건평개、분구화공정규화적중요기출。재암석지하공정설계화시공중환수유암체질량분급작위의거。전자시이암체공정지질역학관점위기출적교대범위적정성분류，조주지질체관건내인지일적암체지질건조화구조개조래분류，유리우득출상응변형파배모식；후자이단지표혹다지표래계산평판암체질량호배，포괄료공정암체본신화소처지질배경인소。재암석공정불동계단화불동층차상，타문적의거화응용각유소장，대공정지질문제적대척도초전예보화공정설계기착불동작용，이우유일정적교차화중첩，결합기래운용가발휘합리해석변형파배모식화대비불동계단판별결과적공정효과。결합안문관수도공정，급출타문적응용정황대비，이편우기재불동공정건설중경호지구별운용。
Due to existence of various unfavorable geological bodies,assessment results of rock mass quality are often varied at different stages of construction,and induce some arguments. In order to assist in rock engineering aims,the engineering geological rock grouping is necessary to carry out on analyses of lithology and physi-mechanical features,for differentiation of main components of engineering geological zonation and evaluation. The widely applied rock mass quality classification is useful in rock engineering design and construction for surrounding rock stability purpose. The former comes from the viewpoint of rock mass structural control and takes account of rock mass types from a large range,while the latter adopting single or multiple parameters for assessment rock mass quality,including rock mass itself and surrounding environment. At different stages and layers,the two methods play distinctive roles,as for large scale geological forecast and engineering design, respectively,but with somewhat joints and overlays. The obvious differences of rock mass quality indices obtained at various stages of construction,can be clarified and interpreted from views of engineering geological rock group,with respect to unfavorable geological bodies. Taking the Yanmenguan Tunnel as one case example,their roles and application process are presented and discussed. The different advantages of the two systems and obtained results could be used in other rock engineering projects.