Abstract：Research purposes: Correct construction methods for high geothermal tunnel sector and reasonable investment are key considerations of designers in railway construction. This paper introduces a comprehensive technical and economic research on seven high geothermal tunnels in Yuxi to Mohan railway, including service gallery and single, double, triple line main tunnels. Labor cost, material and machine shift consumption are measured under certain construction parameters, technological process, technical requirements, using realistic statistical method and field measurement method. Supplementary quota of cooling measures and efficiency reduction rate of labor and machine are also analyzed afterwards, which will provide reference for perfecting the budgeting system of similar projects. Research conclusions: (1) The consumption of labor cost, material and machine is counted, and the supplementary quota of cooling measures and the efficiency reduction rate of labor and machine in the section of high temperature are obtained. (2) Under the construction condition of grade Ⅳ surrounding rock of single-line tunnel with high ground temperature, the efficiency reduction coefficients of gradeⅠ, Ⅱ and Ⅲ are 1.256, 1.405 and 1.699. (3) The construction organization model of tunnel construction under high temperature environment is established, and the increase rate of special cooling measures for normal temperature section and high temperature section tunnel can be finally calculated. (4) The supplementary quota, efficiency reduction rate and construction organization model can provide reference for subsequent railway projects.
李准. 玉磨铁路高地温隧道降温技术及其经济研究[J]. 铁道工程学报, 2022, 39(6): 95-99.
LI Zhun. Technical and Economic Research on the Efficiency Reduction and Cooling Measures in High Geothermal Tunnel in Yuxi-Mohan Railway. Journal of Railway Engineering Society, 2022, 39(6): 95-99.
吴敏, 黄智, 刘大刚. 基于BQ值修正的岩溶隧道围岩分级方法研究与应用[J]. 高速铁路技术, 2020(6):1-5.Wu Min, Huang Zhi, Liu Dagang. Research and Application of Surrounding Rock Classification Method of Karst Tunnel Based on BQ Value Correction[J]. High Speed Railway Technology, 2020(6):1-5.
[2]
胡政, 田茂中, 郭维祥, 等. 隧道高地温的地质成因研究[J]. 西南交通大学学报, 2020(7):1-8.Hu Zheng, Tian Maozhong, Guo Weixiang, etc. Geological Genesis of Tunnel High Temperature[J]. Journal of Southwest Jiaotong University, 2020(7):1-8.
[3]
赵红星. 高地热铁路隧道造价分析研究[J]. 铁道工程学报, 2019(4):90-95.Zhao Hongxing. Analysis of Cost of High Geothermal Railway Tunnel[J]. Journal of Railway Engineering Society, 2019(4):90-95.
[4]
铁建设〔2020〕155号,铁路隧道TBM及超长工区施工等补充预算定额[S] .Railway Construction〔2020〕No.155, Supplementary Budget Quota for Railway Tunnel TBM and Construction of Super-long Working Area[S].
[5]
林波荣. 绿化对室外热环境影响的研究[D]. 北京:清华大学, 2004.Lin Borong. Studies of Greening’s Effects on Outdoor Thermal Environment[D]. Beijing:Tsinghua University, 2004.
[6]
黄妙芬, 刘绍民, 刘素红, 等. 地表温度和地表辐射温度差值分析[J]. 地球科学进展, 2005(10):1075-1082.Huang Miaofen, Liu Shaomin, Liu Suhong, etc. A Study of the Difference between True Surface Temperature and Radiometric Surface Temperature[J]. Advances in Earth Sciences, 2005(10):1075-1082.
[7]
李准,王晓刚.铁路工程概预算工程数量自动套用定额系统研究[J].铁道标准设计,2014(3):141-145.Li Zhun, Wang Xiaogang. Research on Automatic Quota-application System for Budgetary Estimate and Budget of Railway Project Quantity[J]. Railway Standard Design, 2014(3):141-145.
[8]
TZJ 3004—2017, 铁路工程施工机具台班费用定额[S].TZJ 3004—2017, Cost Quota for Railway Engineering Construction Machines and Tools[S].
2022, Vol. 39 
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