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新建成渝中线井口双线特大桥下穿沪蓉线完成“托梁换柱”下穿沪蓉线新井口嘉陵江特大桥，两线交叉角度约为13度，交叉长度115米，必经位置已被23号墩、24号墩占用。此次“托梁换柱”即托起新井口嘉陵江 ...
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