京门支线 发表于 2012-4-19 18:54:15

浅埋短隧道为何不改为明堑？

浅埋短隧道为何不改为明堑？

lotusfire 发表于 2012-8-16 04:53:53

明堑可能排水不良或边坡不稳。

京门支线 发表于 2012-8-20 07:41:20

谢谢指教，非常感谢

xubinbin5454 发表于 2012-9-5 14:22:50

指教了。。。谢谢。。。





















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