车辆动荷载对基坑围护结构的影响分析及建议
投稿时间:2021-02-20  修订日期:2021-02-20  点此下载全文
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作者单位邮编
赵晶 杭州海博地基技术有限公司 浙江 杭州310000 310000
中文摘要:车辆动荷载处于基坑周边时,现行行业安全规范将其归纳为一般危险源。文中某基坑围护因发生局部坍塌,使邻近道路塌陷,调查认为车辆动荷载是事故的主要原因。文中结合该案例,通过对事故原因的分析,并对照现行标准规范,探讨车辆动荷载对基坑围护结构的影响规律。提议将车辆动荷载提升为重大危险源,从跨行业研究、提高基坑外限载、完善基坑监控以及现场管控等方面着手解决问题。同时建议将车辆动荷载列为研究对象,找出力学模型,归纳出影响规律,给出针对性措施,补充完善到现行标准规范中。
中文关键词:车辆动荷载  危险源  基坑围护  坍塌事故  限载  基坑监控  标准规范。
 
Analysis and suggestion of the influence of vehicle dynamic load on the retaining structure of foundation pit
Abstract:When the vehicle dynamic load is around the foundation pit, it is classified as the general hazard source by the current industry safety standard.Due to the partial collapse of a foundation pit, the adjacent road collapsed.Based on this case, through the analysis of the cause of the accident and the comparison with the current standard code, this paper discusses the influence law of vehicle dynamic load on the foundation pit enclosure structure.It is proposed to raise the vehicle dynamic load as a major hazard source, and solve the problems from the aspects of cross-industry research, raising the external load limit of foundation pit, improving the foundation pit monitoring and on-site control.At the same time, it is suggested to take the dynamic load of vehicles as the research object, find out the mechanical model, summarize the influence law, give targeted measures, and supplement and improve it to the current standard and specification.
keywords:Dynamic load of vehicle  Hazards  Foundation pit enclosure  Collapse accidents  loading limit  Foundation pit monitoring  Standard specification.
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