CAJ | 학술논문

采用碎石护坡路基是多年冻土地区主要的工程处理措施。本文依据2003-2011年青藏铁路楚玛尔河地区碎石护坡路基的地温及沉降数据，对其长期效果进行分析。结果表明：采用碎石护坡路基能有效冷却地基和保护多年冻土，路基下地温总体上呈现降低趋势，竣工后2年内冻土人为上限有明显抬升，2005年以后上限基本稳定，冻土路基逐渐呈现出热稳定状态；碎石护坡对于减少路基阴阳坡的地温差异有显著作用；碎石护坡路基填筑完成后，其前期沉降较大，后期逐渐减小，2007年以后每年的沉降量均在10 mm以内，路基呈现出长期稳定状态；碎石护坡施工对铁路运行影响小，故对于冻土铁路可采用碎石护坡措施进行路基补强。
채용쇄석호파로기시다년동토지구주요적공정처리조시。본문의거2003-2011년청장철로초마이하지구쇄석호파로기적지온급침강수거，대기장기효과진행분석。결과표명：채용쇄석호파로기능유효냉각지기화보호다년동토，로기하지온총체상정현강저추세，준공후2년내동토인위상한유명현태승，2005년이후상한기본은정，동토로기축점정현출열은정상태；쇄석호파대우감소로기음양파적지온차이유현저작용；쇄석호파로기전축완성후，기전기침강교대，후기축점감소，2007년이후매년적침강량균재10 mm이내，로기정현출장기은정상태；쇄석호파시공대철로운행영향소，고대우동토철로가채용쇄석호파조시진행로기보강。
T he rubble slop embankment is the main engineering measures in permafrost region. T his paper studied the long-term effect of the rubble slope embankment according to the ground temperature and settlement data in Chumaer river region of Qinghai-Tibet railway during 2003 to 2011. The results showed that the rubble slope embankment can effectively cool foundation and protect permafrost,the ground temperature under the roadbed shows a decreasing trend and the artificial upper limit of permafrost has been uplifted obviously in two years of completion,the upper limit is beginning to stabilize after 2005 and the permafrost roadbed gradually shows in thermal stable state,the rubble slope embankment has a significant role in reducing the ground temperature difference of both sides of the roadbed,the early settlement is big and the later settlement is small after the rubble slope embankment construction,the annual settlement is within 10 mm after 2007 and the roadbed is in stable state over a long period of time,the construction of the rubble slope embankment has little effect on railway operation which means we could use the rubble slope measures for roadbed reinforcement of permafrost railway.