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基金项目:江苏省科技计划专项资金(重点研发计划社会发展)项目“降雨型下蜀土滑坡野外足尺模型试验及监测预警技术研究与应用”(BE2023796)
作者单位
张丽, 宋京雷, 郝社锋,等 江苏省地质调查研究院 
摘要:
      以苏州清明山北侧顺层岩质边坡为研究对象,运用有限差分法,计算边坡在自重、暴雨和地震工况下的稳定性系数,并结合边坡边界条件与现场监测数据,分析边坡稳定性,揭示其破坏机理,并提出相应的治理加固措施。研究表明:在暴雨和地震工况下,边坡稳定性大幅下降,坡面发生剪切破坏,坡体后缘产生拉张裂缝;位移主要沿软弱夹层滑动,剪出口位于30号电塔上方,对电塔构成较大威胁。为此,采用锚索与格构梁对边坡进行整体性加固,同时在坡顶、30号电塔内侧、坡脚及坡体纵向布置排水沟,治理后边坡稳定性显著提高。
关键词:顺层岩质边坡  稳定性分析  有限差分法  破坏机理  加固措施  苏州
Abstract:
      This study investigates the bedding rock slope on the north side of Qingming Mountain in Suzhou. The finite difference method (FDM) was employed to calculate the slope stability factors under the conditions of self weight, heavy rainfall, and earthquake. Integrated with slope boundary conditions and field monitoring data, the slope stability was analyzed, its failure mechanism was revealed, and corresponding treatment and reinforcement measures were proposed. The results indicate that under heavy rainfall and earthquake conditions, the slope stability decreases significantly, with shear failure occurring on the slope surface and tensile cracks developing at the rear edge. The displacement primarily manifests as sliding along the weak interlayer, with the shear exit located above the No. 30 electric tower, posing a considerable threat to the tower. Consequently, an integrated reinforcement system using anchor cables and lattice beams was implemented. Additionally, drainage ditches were installed along the slope crest, the inner side of the No. 30 tower, the slope toe, and longitudinally along the slope body. Post treatment assessment shows a significant improvement in slope stability.
Keywords:bedding rock slope  stability analysis  finite difference method  failure mechanism  reinforcement measure  Suzhou
张丽, 宋京雷, 郝社锋,等.苏州清明山北侧顺层岩质边坡稳定性分析与加固措施[J].地质学刊,2026,50(1):75-85