潜在滑坡体对桥梁桩基安全影响的评价分析
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作者单位:

(中电建路桥集团有限公司, 北京市 100160)

作者简介:

杨凯(1989—), 男, 硕士, 工程师, 从事工程建设工作。

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中图分类号:

U443.15

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Evaluation and Analysis on Impact of Potential Landslide on Safety of Bridge Pile Foundation
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    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。

    Abstract:

    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.

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历史
  • 收稿日期:2021-05-28
  • 最后修改日期:2022-02-11
  • 录用日期:2021-07-15
  • 在线发布日期: 2022-03-07
  • 出版日期: 2021-03-15
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