且由于隧道特殊的空间结构，消防抢救工作非常难，因此火灾损失往往巨大。
Moreover, due to special space structure, salvage is quite difficult once fire happened, so fire damage is usually disastrous.
且由于隧道特殊的空间结构，消防抢救工作非常难，因此火灾损失往往巨大。
Moreover , due to special space structure , salvage is quite difficult once fire happened , so fire damage is usually disastrous.
联拱隧道有其自身特点，由于隧道短，埋深浅、围岩差，施工中容易引起塌方。
Unite arch tunnel has its own characteristics which include short tunnel, fleet bury depth and bad surrounding rocks arouses landslide easily in construction.
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