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羅湖環(huán)湖路銀賓橋橋面突然坍塌 官方公布調查結果

2019-05-20 22:30來(lái)源：深圳新聞網(wǎng)

銀賓橋地理位置圖

經(jīng)專(zhuān)業(yè)橋梁檢測單位評估,該橋橋面塌陷的主要原因為:(一)該橋建設年限較長(cháng),建設等級較低,橋梁結構為漿砌片石拱橋,自身結構存在不穩定性。漿砌片石結構整體性較差,砌石松散、開(kāi)裂,特別是底部的沖刷掏空,對漿砌片石結構的穩定性極為不利,易出現由局部病害引發(fā)的突發(fā)性塌陷。(二)近期深圳進(jìn)入雨水多發(fā)期,導致橋梁拱上建筑內部填土含水量增加,影響橋梁結構整體穩定性。(三)銀湖旅游中心內部正在進(jìn)行建筑施工工程,該橋所屬路段為施工用重載車(chē)輛必經(jīng)道路,橋梁頻繁承受重車(chē)輛荷載,有可能導致橋梁結構損傷。

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