CAJ | 학술논문

通过相似模型试验模拟，研究了煤矿开采沉陷影响下高速公路路基与路面的变形破坏规律，试验表明：路基随地表发生连续、渐变、有规律的变形，其内部发育的裂缝随工作面的推进逐渐闭合压实；路面破坏前与路基之间存在空区，路面内部有竖向裂缝发育。得出了路面与路基且与地表沉陷变形不一致的结论。并提出路面基层出现断裂是高速公路受开采沉陷影响发生破坏的标志，利用线弹性断裂力学理论推导出高速公路发生断裂破坏判据的力学计算式，解释了开采沉陷影响下高速公路变形破坏的机理。
통과상사모형시험모의，연구료매광개채침함영향하고속공로로기여로면적변형파배규률，시험표명：로기수지표발생련속、점변、유규률적변형，기내부발육적렬봉수공작면적추진축점폐합압실；로면파배전여로기지간존재공구，로면내부유수향렬봉발육。득출료로면여로기차여지표침함변형불일치적결론。병제출로면기층출현단렬시고속공로수개채침함영향발생파배적표지，이용선탄성단렬역학이론추도출고속공로발생단렬파배판거적역학계산식，해석료개채침함영향하고속공로변형파배적궤리。
The deformation and failure laws of expressway subgrade and pavement influenced by coal mining subsidence have been researched by the similar model experiment. The results showed that,the deformation of subgrade along with ground is continuous,gradually and regularly changed,and the developed cracks inside the subgrade will approach or even be compac-ted gradually with the working face advance;Before the failure of pavement occurs,the gap has been formed between pavement and subgrade and vertical cracks have been developed inside the pavement. In conclusion,subsidence of the pavement is not consistent with that of the subgrade and ground. It is put forward that roadbase fracture is the sign that the expressway is de-stroyed. The mechanical formulas as the fracture failure criterions of expressway have been derived for interpreting the deforma-tion and failure mechanism of expressway influenced by coal mining subsidence by using linear elastic fracture mechanics.