摘要
为了合理评价某高速公路工程潜在滑坡体对桥梁桩基础工程安全影响,通过实地调研,提出影响冲沟区桥梁桩基础工程安全的因素有人为因素和自然因素,即桩基位置、桩基周围弃方弃渣、施工规范程度、监测意识、防护措施、桩周岩土性质、相对高差、坡度、植被覆盖率、日最大降雨量、地震烈度等;进一步结合层次分析法、模糊综合分析法、专家打分法等,对桥梁桩基进行了安全评价,确定了依托工程安全程度等级为"Ⅱ"级,即危险度为中等.相关结论可为依托工程提供针对性指导.
In order to rationally evaluate the impact of potential landslide on the engineering safety of bridge pile foundation in an expressway project,through the field survey,the human factors and natural factors affecting the engineering safety of bridge pile foundation in the gully area are put forward.These factors are the position of pile foundation,the waste earthwork and waste slag around pile foundation,the degree of construction specifications,the monitoring awareness,the protective measures,the rock-soil properties around pile,the relative height difference,the slope,the vegetation coverage,the maximum daily rainfall,the seismic intensity and the others.By further combined with the analytic hierarchy process,the fuzzy comprehensive analysis method,the expert scoring method,etc.,the safety evaluation of the bridge pile foundation is carried out,and the safety degree of the supporting project is determined to be"Ⅱ",that is,the degree of danger is medium.The relevant conclusions can provide the targeted guidance for the supporting projects.
出处
《城市道桥与防洪》
2022年第3期152-155,M0013,M0014,共6页
Urban Roads Bridges & Flood Control
关键词
冲沟区
桥梁桩基
安全保障技术
层次分析法
评价指标
gully area
bridge pile foundation
security technology
analytic hierarchy process
evaluation index
