CAJ | 학술논문

岩堆是我国西南高山峡谷区常见的不良地质体，其存在对高速公路边坡稳定性提出了严峻挑战。文章依托国家高速公路网规划中南北纵线G85高速公路工程，运用数值模拟的方法研究了深厚岩堆拉锚抗滑桩路堑边坡在自然、强降雨和地震状态下的稳定性，对比分析了岩堆体在自然状态、地震状态与强降雨条件下岩堆体边坡变形破坏特征及锚索轴力变化规律。计算结果表明，开挖对岩堆体变形有较大影响，岩堆体自然状态和暴雨状态下，在无任何加固措施时整体稳定性相对较低；增加抗滑桩和锚索加固后，安全系数均有所提高，潜在滑动面整体向下移至抗滑桩下部，加固作用效果显著。研究成果为岩堆路堑边坡工程设计与施工提供了参考依据。
암퇴시아국서남고산협곡구상견적불량지질체，기존재대고속공로변파은정성제출료엄준도전。문장의탁국가고속공로망규화중남북종선G85고속공로공정，운용수치모의적방법연구료심후암퇴랍묘항활장로참변파재자연、강강우화지진상태하적은정성，대비분석료암퇴체재자연상태、지진상태여강강우조건하암퇴체변파변형파배특정급묘색축력변화규률。계산결과표명，개알대암퇴체변형유교대영향，암퇴체자연상태화폭우상태하，재무임하가고조시시정체은정성상대교저；증가항활장화묘색가고후，안전계수균유소제고，잠재활동면정체향하이지항활장하부，가고작용효과현저。연구성과위암퇴로참변파공정설계여시공제공료삼고의거。
The slope stability of highway is challenged by rock heap ,which is a common adverse geo‐logic body in Chinese southwest alpine gorge .In view of the national highway network planning G85 North‐South line of highway engineering ,the stability of cutting slope with deep rock heap and anchor anti‐slide pile under natural state , seismic condition and strong rainfall condition was simulated through numerical simulation method ,and the rock heap mass structure type of side slope and the change law of axial force of cable were analyzed comparatively under natural state ,seismic condition and strong rainfall condition .The calculation results indicate that excavation has great influence on the rock heap mass deformation ,and the overall stability is relatively low under natural state and the rainfall condition without any reinforcement measures .When reinforced by the anti‐slide pile and the anchor cable ,the safety coefficients increase and the potential slope shift down to the lower part of an‐ti‐slide pile ,and the reinforcements are effective .The study provides references for the design and construction of rock heap cutting slope engineering .