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隧道门附属工程是保证隧道门结构稳定,防止水害,确保行车安全的设施。据现场调查,发现隧道多处因选线不当又无完善的排水设施,当雨季洪水夹杂着泥砂灌入隧道内淹没钢轨,较轻者列车限速慢行,较严重者造成停车事故,此病害的后遗症是线路翻浆冒泥。为清除此类病害,设计了这套通用图,内容有:(1)适用于单线、双线、三线的名牌及号标;(2)根据不同的地形和洞门结构,设计了8种检查设备;(3)为预防地表水下渗和边、仰坡
Tunnel door ancillary works to ensure the stability of the tunnel door structure to prevent water damage, to ensure traffic safety facilities. According to on-site investigation, many tunnels were found to have improper alignment and no perfect drainage facilities. When the rainy season flood mixed with silt and poured into the tunnel to submerge the rails, the lighter ones run at a slower speed and the more serious ones cause parking accidents. The sequelae of the line is the slime mud. In order to eliminate such diseases, this universal map is designed with the following contents: (1) Suitable for single-brand, double-line and third-line brand names and labels; (2) According to different terrain and door structure, Equipment; (3) In order to prevent surface water seepage and edge, back slope