摘要
现行铁路工程隧道预算定额中洞身开挖定额包含排水量≤10 m^3/h的施工用水抽排。当排水量大于10 m^3/h时,需根据所采取治水措施及排水设计另行分析计算排水费用。此文就隧道反坡排水施工技术方案进行论述,研究新建蒙自至河口铁路石板寨一号隧道'永临相结合,分段排水'反坡排水施工方案,在此基础上分析和探讨排水量大于10 m3/h时隧道开挖增加抽排水台班费用计算方法。
The excavation quota in the current railway engineering tunnel budget quota contains the drainage of construction water with the displacement≤10 m^3/h.When the displacement of construction water is more than 10 m^3/h,the drainage cost shall be calculated according to the water control measures and drainage design.The construction technology scheme of tunnel slope drainage is expounded in this paper.The construction scheme of reverse slope drainage in No.1 tunnel of Shibanzhai of Mengzi-Hekou railway is studied.And the calculation method of additional drainage cost for tunnel excavation is analyzed when the displacement is more than 10 m^3/h.
出处
《铁路工程技术与经济》
2019年第5期23-27,共5页
Railway Engineering Technology and Economy
关键词
铁路隧道
反坡排水
技术方案
费用计算
Railway tunnel
Reverse slope drainage
Technical scheme
Cost calculation
