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高速公路護欄設置存在的主要問題就是護欄的防撞能力不足。護欄結構的確定與其設計條件密切相關。護欄的設計條件主要考慮標準車型、車重、碰撞速度、碰撞角度等因素,這些都是由道路條件和交通條件決定的。我國自20世紀末就已開始對全國已通車有代表性的進行了事故調查,交通條件和道路條件調查,并對新型護欄結構進行了大量的研究和實驗,取得了一系列的研究成果。對我國的護欄等級進行了明確的劃分。橋梁中央的分隔帶護欄,防撞能力不足,一般只有75 cm高,難以阻止事故車輛的翻越,很可能形成二次事故。 

         The main problem of the highway guardrail setting is the lack of Crashworthiness of the guardrail. The determination of guardrail structure is closely related to its design conditions. The design condition of guardrail mainly considers such factors as standard vehicle type, vehicle weight, collision speed and collision angle, which are determined by road conditions and traffic conditions. Since the end of the 20th century, our country has begun to investigate the representative traffic accidents, traffic conditions and road conditions in the whole country. A lot of research and experiments have been carried out on the new guardrail structure, and a series of research results have been achieved. The classification of guardrails in China is clearly defined. The barrier in the center of the bridge is insufficient in anti-collision ability, which is only 75 cm high. It is difficult to prevent the vehicle from overturning, and it is likely to cause a secondary accident.


公路護欄


  高速公路防撞護欄是最重要的交通基礎設施,我國高速公路是從80年代發展起來的,它對國民經濟和社會的發展起著重要的影響作用。是高速公路重要維護和安全保障設施。防撞護欄是高速公路的收尾工程,也是高速公路外觀質量的重要組成部分。防撞護欄的內在質量在于原材料及加工過程,它的外觀質量取決于施工過程,所以我們一定要不斷總結經驗,加強施工管理,使防撞護欄的外觀質量得以保證。 

         gāo sù gōng lù fáng zhuàng hù lán shì zuì zhòng yào de jiāo tōng jī chǔ shè shī ,wǒ guó gāo sù gōng lù shì cóng 80nián dài fā zhǎn qǐ lái de ,tā duì guó mín jīng jì hé shè huì de fā zhǎn qǐ zhe zhòng yào de yǐng xiǎng zuò yòng 。shì gāo sù gōng lù zhòng yào wéi hù hé ān quán bǎo zhàng shè shī 。fáng zhuàng hù lán shì gāo sù gōng lù de shōu wěi gōng chéng ,yě shì gāo sù gōng lù wài guān zhì liàng de zhòng yào zǔ chéng bù fèn 。fáng zhuàng hù lán de nèi zài zhì liàng zài yú yuán cái liào jí jiā gōng guò chéng ,tā de wài guān zhì liàng qǔ jué yú shī gōng guò chéng ,suǒ yǐ wǒ men yī dìng yào bú duàn zǒng jié jīng yàn ,jiā qiáng shī gōng guǎn lǐ ,shǐ fáng zhuàng hù lán de wài guān zhì liàng dé yǐ bǎo zhèng 。 


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