某深厚填土边坡变形特征及防治分析
摘要:调查区坡顶建(构)筑物中出现一系列的拉裂缝及下错裂缝,采用工程地质调查、地质过程分析、坡体结构分析的方法,通过综合的勘察手段,查明了填土的分布,通过地质过程分析,从裂缝形成演变的角度结合边坡的地质结构,分析了病害形成主要因素为高陡的地形、较厚的填方体、不利的地层接触关系及持续的车辆荷载,坡体处于蠕动变形阶段。建立三维地质模型,采用极限平衡法和数值模拟进行了变形区稳定性评价,认为1#、2#不稳定边坡基本稳定,3#不稳定边坡表现为不均匀沉降,边坡应加强监测。根据监测结果采取进一步的治理,根据近一年的监测数据,边坡变形趋势减缓,各项指标均显示正常,为厂区的安全提供了科学的防治建议。
Abstract:A series of tensile cracks and lower fault cracks appeared in the buildings (structures) on the top of the slope in the survey area. Comprehensive survey methods are applied to find out the distribution of the fill, including geological survey, geological process analysis and slope structure analysis. Through the analysis of geological process, combined with the geological structure of the slope from the perspective of crack formation and evolution, the main factors of disease formation are analyzed. High and steep terrain, thicker fill, unfavorable stratum contact and continuous vehicle load are the main factors, and the slope is during the creep deformation stage. A three-dimensional geological model is established, and the stability of the deformation zone is evaluated through limit equilibrium method and numerical simulation. It is concluded that the unstable slopes of 1# and 2# are basically stable, and the 3# unstable slope is during uneven settlement, which should be monitored more closely, and further treatment should be taken according to the monitoring results. According to the monitoring data of the past year, the slope deformation trend has slowed down, and all indicators are normal, which provides a basis for prevention suggestions.
中文标题：
某深厚填土边坡变形特征及防治分析
Deformation Characteristics and Prevention Analysis of a Deep and Thick Fill Slope
作者：
张健1,张立伟2
Zhang Jian1,Zhang Liwei2
作者简介:张健,男,1987年生,汉族,硕士研究生,高级工程师,注册土木工程师(岩土),主要从事岩土工程设计与研究。E-mail:576701219@qq.com
通讯地址：
1. 中国电建集团河北省电力勘测设计研究院有限公司, 河北石家庄 050031; 2. 河北建设勘察研究院有限公司, 河北石家庄 050031
1.PowerChinaHebeiElectricPowerEngineeringCo.,Ltd.,Shijiazhuang050031,Hebei,China; 2.HebeiResearchInstituteofConstruction&GeotechnicalInvestigationCo.,Ltd.,Shijiazhuang050031,Hebei,China
中图分类号:P753.8
doi:10.3969/j.issn.1007-2993.2020.06.008
出版物：岩土工程技术
收稿日期:2019-10-28
网络出版日期:2021-07-06
关键词:填土边坡,形成机理,病害分析,数值模拟
Key words:fill slope,formation mechanism,disease analysis,numerical simulation
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