基于橫向穩(wěn)定性的風(fēng)區(qū)高速公路運(yùn)行安全研究
發(fā)布時(shí)間:2018-05-26 02:16
本文選題:公路運(yùn)輸 + 橫向穩(wěn)定性; 參考:《公路》2017年04期
【摘要】:高速行駛的車(chē)輛經(jīng)常會(huì)受到外界風(fēng)的作用,極大增加了車(chē)輛側(cè)移和傾覆的可能性,嚴(yán)重影響著車(chē)輛的穩(wěn)定性和行駛安全性。從車(chē)輛不發(fā)生側(cè)傾、側(cè)移的兩種失穩(wěn)的極限狀態(tài)出發(fā),綜合考慮道路線(xiàn)形、路面狀況以及交通流組成等多種因素,通過(guò)風(fēng)險(xiǎn)分析中事故樹(shù)分析法綜合考慮車(chē)輛側(cè)翻、側(cè)滑等多種事故類(lèi)型,建立在風(fēng)—車(chē)—路三者耦合條件下車(chē)輛行車(chē)安全性的評(píng)價(jià)方法體系,用于強(qiáng)橫風(fēng)條件下的道路橫向安全性的定量評(píng)價(jià)以及潛在危險(xiǎn)路段的識(shí)別。通過(guò)實(shí)例分析實(shí)現(xiàn)了強(qiáng)橫風(fēng)條件下的不同路段間相對(duì)安全性比較,為高速公路強(qiáng)橫風(fēng)區(qū)間防風(fēng)設(shè)施的設(shè)計(jì)提供參考依據(jù)。
[Abstract]:High speed vehicles are often affected by the outside wind, which greatly increases the possibility of vehicle sidewalk and overturn, and seriously affects the stability and safety of vehicles. Starting from the two kinds of unstable limit states of vehicle without roll and lateral displacement, considering the road alignment, road condition and traffic flow composition, the vehicle rollover is considered comprehensively by accident tree analysis in the risk analysis. The evaluation method system of vehicle driving safety under the condition of wind-vehicle-road coupling is established, which is used for the quantitative evaluation of the lateral safety of the road under strong crosswind conditions and the identification of the potentially dangerous road sections. The relative safety comparison between different sections under strong crosswind conditions is realized through the analysis of examples, which provides a reference for the design of wind-proof facilities in the strong crosswind section of freeway.
【作者單位】: 華中科技大學(xué)交通運(yùn)輸規(guī)劃與管理實(shí)驗(yàn)室;
【基金】:國(guó)家自然科學(xué)基金項(xiàng)目,項(xiàng)目編號(hào)51308242,E080702
【分類(lèi)號(hào)】:U492.8
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