土工基础

土工基础 ›› 2023, Vol. 37 ›› Issue (2): 288-294.

• 专题论述 • 上一篇    下一篇

削山填沟高填方边坡变形演化规律与稳定性评估

宋顶峰1,2，许军军1,2，胡 军3,4，张振平5，付晓东3   

  1. （1.中建国际投资（湖北）有限公司，武汉 430000；2.中国建筑国际集团有限公司，香港 999077；3.中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071;4.长安大学建筑工程学院，西安 710061;5.沈阳工业大学建筑与土木工程学院，沈阳 110870）
  • 收稿日期:2023-02-12 修回日期:2023-02-21 出版日期:2023-04-30 发布日期:2023-04-20
  • 作者简介:宋顶峰（1974-），男，高级工程师，硕士，研究方向为岩土工程和工程管理。

The Deformation and Stability Evaluation of High-Fill Slopes in High Cutting Area

SONG Dingfeng1,2, XU Junjun1,2, HU Jun3,4, ZHANG Zhenping5， FU Xiaodong3   

  1. (1.China State Construction International Investments (Hubei) Co. Ltd., Wuhan 430000；
    2.China State Construction International Holdings Co. Ltd., Hong Kong 999077；
    3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071；
    4.School of Civil Engineering, Chang’an University, Xi’an, 710061；
    5.School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870)
  • Received:2023-02-12 Revised:2023-02-21 Online:2023-04-30 Published:2023-04-20

摘要： 随着我国山区城镇化建设力度逐步加大，削山填沟带来的高填方边坡稳定性与地基沉降变形问题日益突出。以湖北省十堰市郧西县河夹扶贫产业园为例，综合力学性质试验、有限元与极限平衡分析、自动化监测等手段，开展了削山填沟高填方边坡变形演化规律与稳定性评估研究。研究结果表明，在时步填筑过程中，场地最大沉降增量位移均出现在地表区域，并呈以其为中心，随填筑深度及水平距离的增加位移响应值逐步减小的特征，具有较为明显的空间影响范围；填筑后安全系数为2.531，高边坡处于较安全状态，但考虑到后续降雨和施工荷载影响，应当及时施加工程防护措施；结合沉降、测斜长期监测数据，可以认为边坡变形主要发生在离地表10 m范围内。研究成果能为削山填沟高填方边坡风险评估与地质灾害防治提供技术与实践经验。


关键词: 削山填沟, 高填方边坡, 变形, 稳定性, 监测

Abstract: With the increase of urbanization construction in mountainous areas in China, the problems of stability of high-filled slopes, foundation settlement and deformation induced by the hill cutting project are becoming more and more prominent. In this paper, the study on the deformation and stability assessment of the high-filled slope are performed comprehensively using the mechanical property test, finite element simulation, limit equilibrium analysis, and automatic construction monitoring in the Hejia Poverty-Alleviation Industrial Park in Yunxi County, Shiyan City, Hubei Province. The evaluation results show that the maximum settlement at the site during the time-step filling process appears in the surface area. The settlement pattern shows the maximum settlement is at the center and gradually decreasing with the increases with the backfill depth and horizontal distance, with a more obvious spatial influence range. The factor of safety is 2.531 after the backfill. The high-filled slope is in a safer state. However, considering the influence of the subsequent rainfall and the construction load, engineering measures should be applied consequently. The slope deformation was observed occurring mainly within 10 m below the ground surface by combining the long-term monitoring data of settlement and the inclination measurement. The results can provide technical and practical experience for the risk assessment, the geohazard prevention and the control of high-filled slopes in the hill cutting project.


Key words: Hill Cutting, High-Filled Slope, Deformation, Stability, Monitor

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