六車道橋隧相接落石防護技術(shù)研究

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摘  要：如何有效地控制落石災(zāi)害，對確保項目施工安全及運營安全至關(guān)重要?；诖罂缍葮蛩硐嘟訉嵗?，針對性地提出系統(tǒng)的落石防護措施;通過數(shù)值模擬分析，不受石頭沖擊作用下鋼棚架結(jié)構(gòu)滿足規(guī)范要求，并提出滿足不同設(shè)防落石沖擊需求的鋼拱架參數(shù)，為類似工程提供借鑒性的參考。

關(guān)鍵詞：落石防護;落石沖擊力;大跨度鋼結(jié)構(gòu)棚架;屈曲;結(jié)構(gòu)分析

中圖分類號：U451       文獻(xiàn)標(biāo)志碼：A          文章編號：2095-2945（2024）09-0189-04

Abstract： How to effectively control the rockfall disaster is very important to ensure the construction safety and operation safety of the project. Based on the example of the connection of long-span bridges and tunnels， the systematic rockfall protection measures are put forward， and the numerical simulation analysis shows that the steel scaffolding structure without stone impact meets the requirements of the code. The steel arch parameters to meet the requirements of different anti-rockfall impact are put forward， which provides a reference for similar projects.

Keywords： rockfall protection; rockfall impact force; long-span steel structure scaffolding; buckling; structural analysis

隨著國家基礎(chǔ)建設(shè)的快速發(fā)展，西部地區(qū)橋梁、隧道相連實例越來越多，主要分為橋梁與隧道相接、橋梁主體結(jié)構(gòu)深入隧道、橋梁與隧道間設(shè)置短路基。（剩余5755字）