基于公路路侧边坡光伏设施的路侧事故严重程度研究  

Research on the Severity of Roadside Accidents based on Photovoltaic Facilities along Highway Side Slopes

作　　者：陈泽 李康文 张军方 邰永刚[2] 李之啸 CHEN Ze;LI Kang-wen;ZHANG Jun-fang;TAI Yong-gang;LI Zhi-xiao(Shandong Provincial Communications Planning and Design Institute Group Co.Ltd.,Jinan 25010l,China;Beijing Jiaoke Transport Consultants Ltd.,Beijing 100191,China)

机构地区：[1]山东省交通规划设计院集团有限公司,济南市250101 [2]北京交科公路勘察设计研究院有限公司,北京市100191

出　　处：《公路》2025年第2期277-283,共7页Highway

摘　　要：随着交能融合发展,公路边坡设置光伏并由公路沿线用电设备自消纳是其中一个重要发展方向,但是设置光伏后公路路侧的事故严重程度存在未知,为定量评价路侧边坡光伏设施对路侧事故严重程度的影响,以便有针对性地采取交通安全改善措施,从车辆乘员受伤害程度和车辆破坏角度分析,并引入加速度严重指数(ASI)和车辆碰撞吸能作为表征;利用LS-DYNA软件,建立车辆、标志立柱、树木、光伏、桥墩模型,采用实车碰撞试验校核模型的有效性;通过建立5因素4水平正交试验表,完成16组碰撞仿真试验,研究车辆速度、车辆驶离角度、边坡坡度、边坡高度、路侧障碍物类型5种因素对路侧事故严重程度的影响。研究结果表明:仿真结果与实车试验结果一致性良好,仿真模型有效合理;以ASI值和车辆吸收能量作为正交试验评价指标,5种因素对车辆事故的影响敏感度排序为:障碍物种类>车辆速度>驶出角度>边坡坡度>边坡高度,所以边坡设置光伏时应按照此顺序完善交通安全设施改善方案。With the development of transportation and energy integration,it is an important development direction for highway slopes to be installed with photovoltaic and self-absorbed by electrical equipment along the road.However,the severity of roadside accidents after photovoltaic installation is unknown.In order to quantitatively evaluate the impact of roadside slope photovoltaic facilities on the severity of roadside accidents so as to take targeted measures to improve traffic safety,the acceleration severity index(ASI)and energy absorption in vehicle collision are introduced to characterize vehicle occupant injury severity and vehicle damage.The LS-DYNA software is used to establish models of vehicles,sign posts,trees,photovoltaics and piers,and the validity of the models is checked by real vehicle crash test.Through the establishment of 5 factors and 4 levels of orthogonal test table,16 groups of collision simulation tests are completed to study the impact of 5 factors such as vehicle speed,vehicle departure angle,slope ratio,slope height and roadside obstacle type on the severity of roadside accidents.The results show that the simulation results are in good agreement with the real vehicle test results,and the simulation model is effective and reasonable.With ASI value and vehicle energy absorption as orthogonal test evaluation indexes,the sensitivity of five factors to vehicle accidents is ranked as follows:obstacle type>vehicle speed>departure angle>slope gradient>slope height.Therefore,the traffic safety facilities improvement plan should be improved according to this order when installing PV along side slopes.

关 键 词：交通工程 交能融合 路侧危险度 光伏设施 LS-DYNA 正交试验 

分 类 号：U491.59[交通运输工程—交通运输规划与管理] U491.3[交通运输工程—道路与铁道工程]