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由于隧道防水排水处理不当,造成衬砌病害,綫路状态不良(鋼軌附件銹蝕,枕木腐朽,綫路翻浆冒泥),照明設备損坏等的严重現象,目前已引起了鈇路設計、施工和运营部門的普遍注意。山东北地区的情况着,隧道衬砌病害較普遍的类型有两种: (1)衬砌渗漏及冻害,多見于排水設备不良的隧道。由于聚集于衬砌四周的地下水未能及时順利排除,越集越多,加大了水压,造成衬砌潮湿、漫渗、滴漏等病害。冬季滴水,在隧顶冻成冰柱,在隧底結水冰堆,冰柱、冰堆逐漸变大,就侵入了机车車輛限界,影响运行安全。衬砌背后冰冻,对衬砌就产生一种冻涨力,冻融循环作用,使衬砌結构加速損坏。 (2)衬砌剝蝕:大多发生在日伪时修建的隧道。因为净空高度低(仅5.2～5.4m),机車水汽煤烟直接噴击拱頂,因而在物理破坏化学侵蝕作用下,促使拱頂部份衬砌剝蝕。在衬砌渗漏处地下水对混凝土的溶蝕,使混凝土內游离石灰溶解析出,逐漸使結构物变得多孔
Due to the improper handling of the tunnel waterproofing and drainage, the serious phenomenon of lining disease, poor line condition (corroded rail attachment, decayed sleepers, damage to the lines) and lighting equipment damage have caused the Rushu design, construction and operation departments The general attention. The situation in northern Shandong, tunnel lining diseases are more common in two types: (1) lining leakage and frost damage, more common in poor drainage tunnels. As gathered in the lining around the groundwater can not be successfully removed in time, the more the more set, increased water pressure, resulting in lining damp, diffuse seepage, drip and other diseases. Winter drip, the tunnel into a frozen icicles, in the tunnel bottom water ice, icicles, ice pile gradually become larger, it invaded the rolling stock boundary, affecting operational safety. Behind the lining of the ice, the lining to produce a freeze-up force, freeze-thaw cycle, so that the lining of the accelerated damage. (2) lining erosion: mostly occurred in the construction of the Japanese-puppet tunnel. Because of the low headroom (only 5.2 ~ 5.4m), locomotive water vapor soot blows directly onto the vault, thus causing the erosion of the dome lining under the effect of physical damage to the chemical attack. Leakage in the lining of the groundwater erosion of concrete, so that free lime dissolved in concrete precipitation, and gradually make the structure becomes porous