CAJ | 학술논문

日益增多的地裂缝灾害受到人们的普遍关注，而隐伏地裂缝数量更加巨大，其破裂扩展的随机性及潜在的灾害效应是我们必须面临和解决的问题。隐伏地裂缝的破裂扩展方式受多种因素影响，包括地裂缝的位错量、倾角和活动速率，上覆土层的性质、厚度和地层结构，以及表水下渗、开采地下水、地震动和时间效应等，这些因素的组合和叠加，导致隐伏地裂缝的破裂力学机制复杂，破裂扩展过程难以再现。目前隐伏地裂缝的破裂扩展研究方法主要采用现场调查与勘探、模型试验、力学综合分析与解析和数值模拟等综合手段，研究内容包括地裂缝破裂扩展各种形成条件和诱发因素的影响效应。通过分析隐伏地裂缝破裂扩展在其形成的复杂环境地质条件、多期活动性、长期蠕动性和多种诱发因素共同作用下的综合效应与力学机制，研究其破裂扩展过程，追踪不同深度的破裂位置及影响带宽度，确定一定条件下隐伏地裂缝扩展引起的地表最大位错量和最小安全覆盖层厚度，制定统一的地裂缝影响带宽度确定方法和标准，可为解释实际地裂缝破裂现象和地裂缝灾害综合防治提供依据，也是今后的研究重点。
일익증다적지렬봉재해수도인문적보편관주，이은복지렬봉수량경가거대，기파렬확전적수궤성급잠재적재해효응시아문필수면림화해결적문제。은복지렬봉적파렬확전방식수다충인소영향，포괄지렬봉적위착량、경각화활동속솔，상복토층적성질、후도화지층결구，이급표수하삼、개채지하수、지진동화시간효응등，저사인소적조합화첩가，도치은복지렬봉적파렬역학궤제복잡，파렬확전과정난이재현。목전은복지렬봉적파렬확전연구방법주요채용현장조사여감탐、모형시험、역학종합분석여해석화수치모의등종합수단，연구내용포괄지렬봉파렬확전각충형성조건화유발인소적영향효응。통과분석은복지렬봉파렬확전재기형성적복잡배경지질조건、다기활동성、장기연동성화다충유발인소공동작용하적종합효응여역학궤제，연구기파렬확전과정，추종불동심도적파렬위치급영향대관도，학정일정조건하은복지렬봉확전인기적지표최대위착량화최소안전복개층후도，제정통일적지렬봉영향대관도학정방법화표준，가위해석실제지렬봉파렬현상화지렬봉재해종합방치제공의거，야시금후적연구중점。
The number of buried ground fissures is much more than that of exposed ones.The buried ground fis-sures have brought about great hazards and thus attracted more attentions.Rupture propagation modes of buried ground fissures are affected by many factors including the displacement,inclination and activity rate of ground fis-sures,the properties,thickness and strata structure of overlying soil,as well as surface-water infiltration,groundw-ater exploitation,ground motion and time effects.The different combinations of these factors result in the complex mechanical mechanism of rupture propagation over buried ground fissures and make it difficult to reproduce the rup-ture propagation process.Currently,research methods of the rupture propagation are mainly about in-situ investiga-tion and exploration,model test,mechanical analysis and numerical simulation.The research contents focus on the rupture propagation effect based on the change of single formation condition or inducing factor.Such future priority research subjects include 1 )analyzing comprehensive effects and mechanical mechanism of rupture propagation un-der its formation geological conditions,multi-stage activity,long-term creeping motion and a variety of inducing fac-tors,2)studying on the rupture propagation process to track the fracture position and its influence width at a differ-ent depth,3)calculating the maximum vertical surface displacement caused by rupture propagation and the mini-mum safe overburden thickness under certain conditions,and 4)determining unified methods and standards for the effect zone width of ground fissure.All these research subjects can use to interpret the actual fracture phenomena and provide the basis for the comprehensive prevention and control of ground fissures.