寒区隧道二衬混凝土冬季施工温控技术研究

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1223 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要冬季寒区隧道二衬模筑混凝土施工由于低温水泥水化不充分、不均匀，极易出现强度不达标、表面出现贯穿性裂缝等问题。根据含低温相变岩体温度场控制方程，从研究开挖时间对围岩温度影响入手，在充分考虑混凝土水化热影响条件下，分析寒区隧道围岩与二衬混凝土热量迁移传递规律，研究隧道内环境温度、浇注时洞内加热温度和加热时间对二衬模筑混凝土温度影响规律。研究结果表明，随着开挖时间的增加，围岩温度受环境温度影响的范围逐渐增大；围岩被加温一段时间后，表面温度和深部围岩温度较高，中间温度较低，形成了两头热，中间冷的温度分布情况；二衬混凝土24 h内的最低温度随着加热时间、加热温度和环境温度的增加(升高)而升高。在此基础上，提出一种简洁、实用的加热时间计算公式。现场实施效果表明，应用该计算公式，可实现嘎隆拉隧道冬季低温环境条件下二衬模筑混凝土高效不间断施工、表面无裂纹且现场实测强度大于C30强度等级的目标。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章

关键词 ：隧道工程, 寒区隧道, 混凝土衬砌, 冬季施工, 温控技术

Abstract：The cement can not hydrate sufficiently and uniformly at low temperature，so it?s easy to arouse rise the problem with lack of strength and appearing penetration cracks for tunnel concrete lining in cold regions during winter. According to the temperature control equation including low temperature phase transition，beginning with the study of influence of excavation time on temperature distribution of surrounding rock，considering the heat of hydration of concrete，the heat transfer law between surrounding rock and concrete lining was analyzed，and the influence of environment temperature in tunnel，heating temperature and time on the change rule of concrete temperature was studied. The results show that the influence scope of environmental temperature on the temperature of surrounding rock increased with the increase of excavation time；after a period of heated time，the temperature of surface and deep surrounding rock became higher than the middle?s，formed a temperature distribution of hot at two head，cold in the middle；the lowest temperature of concrete lining in 24 hours increased with increasing of heating time，heating temperature and environmental temperature. Based on this，a concise and practical heating time calculation formula was put forward. The in-situ results show that the goals were realized about the lining concrete can continuously and efficiently constructing，its surface has no crack and the actual strength＞C30 by applying the proposed calculation formula.

Key words： tunnelling engineering tunnel in clod regions concrete lining winter construction temperature control technology

收稿日期: 2012-06-20

引用本文:

谭贤君1，陈卫忠1，2，王辉3，赵武胜1. 寒区隧道二衬混凝土冬季施工温控技术研究[J]. 岩石力学与工程学报, 2013, 32(1): 150-160.
TAN Xianjun1，CHEN Weizhong1，2，WANG Hui3，ZHAO Wusheng1. RESEARCH ON TEMPERATURE CONTROL TECHNOLOGY FOR WINTER CONSTRUCTION OF TUNNEL CONCRETE LINING IN COLD REGIONS. , 2013, 32(1): 150-160.

链接本文:

http://www.rockmech.org/CN/Y2013/V32/I1/150

[9]	吕宝玉，单大力. 有关防冻泵送剂的若干思考[J]. 混凝土，2002，(9)：14-16.(LU Baoyu，SHAN Dali. Some considerations on anti-freezing pumping aid[J]. Concrete，2002，(9)：14-16.(in Chinese)) " target="_blank">
[3]	郭全生，朱明峰. 冬季大体积混凝土施工的控温及养护[J]. 混凝土，1997，(5)：46-47.(GUO Quansheng，ZHU Mingfeng. Temperature control and maintenance in the process of construction of mass concrete in winter[J]. Concrete，1997，(5)：46-47.(in Chinese)) " target="_blank">
[6]	金连才. 西藏地区冬季混凝土施工利用太阳能供热的探讨[J]. 水力发电，2005，31(9)：42-43.(JIN Liancai. Discussions on the solar heat supply in the concrete construction in winter in Tibet Region[J]. Water Power，2005，31(9)：42-43.(in Chinese)) " target="_blank">
[10]	李秋启，公衍丽，王广通. 几种常见防冻剂各组分掺量对混凝土冬期施工的影响[J]. 混凝土，1997，(3)：49-51.(LI Qiuqi，GONG Yanli，WANG Guangtong. The influence of several common antifreezing admixture on the various components of the winter concrete construction[J]. Concrete，1997，(3)：49-51.(in Chinese)) " target="_blank">
[12]	TAN X J，CHEN W Z，TIAN H M，et al. Water ?ow and heat transport including ice/water phase change in porous media：Numerical simulation and application[J]. Cold Regions Science and Technology，2011，68(1)：74-84. " target="_blank">
[13]	谭贤君，陈卫忠，贾善坡，等. 含相变低温岩体水热耦合模型研究[J]. 岩石力学与工程学报，2008，27(7)：1 455-1 461.(TAN Xianjun，CHEN Weizhong，JIA Shanbo，et al. A coupled hydro- thermal model for low temperature rock including phase change[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 455-1 461.(in Chinese)) " target="_blank">
[2]	夏才初，张国柱，肖素光. 考虑衬砌和隔热层的寒区隧道温度场解析解[J]. 岩石力学与工程学报，2010，29(9)：1 767-1 773.(XIA Caichu，ZHANG Guozhu，XIAO Suguang. Analytical solution to temperature fields of tunnel in cold region considering lining and insulation layer[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(9)：1 767-1 773.(in Chinese)) " target="_blank">
[4]	唐林，李正超. 满拉水利枢纽工程冬季混凝土施工措施[J]. 水利水电技术，2000，31(12)：32-33.(TANG Lin，LI Zhengchao. Concrete construction measures for Raman large-scale water projects in winter[J]. Water Resources and Hydropower Engineering，2000，31(12)：32-33.(in Chinese))
[5]	尚军. 湾湾川隧道混凝土工程冬季施工技术方案[J]. 山西建筑，2010，36(17)：338-339.(SHANG Jun. Winter constructional technology plan for the concrete project of Wanwanchuan tunnel[J]. Shanxi Architecture，2010，36(17)：338-339.(in Chinese)) " target="_blank">
[7]	刘延熙，周昭强. 羊湖电站冬季混凝土施工技术措施[J]. 水利水电技术，1995，(1)：36-39.(LIU Yanxi，ZHOU Zhaoqiang. Construction measures for Yanghu power station in winter[J]. Water Resources and Hydropower Engineering，1995，(1)：36-39.(in Chinese)) " target="_blank">
[1]	张勇进，李源. 冬季混凝土受冻机理及施工温控技术[J]. 中外公路，2007，27(5)：123-126.(ZHANG Yongjin，LI Yuan. Frost mechanism of concrete and construction temperature control technology in winter[J]. Journal of China and Foreign Highway，2007，27(5)：123-126. (in Chinese)) " target="_blank">
[11]	韩亚飞. 浅谈沈阳市五爱隧道大体积混凝土冬季施工防裂抗渗技术措施[J]. 北方交通，2008，(7)：144-146.(HAN Yafei. Large volume concrete winter construction anti-cracking anti-permeability technical measures of Shenyang Wuai tunnel[J]. North Traffic，2008，(7)：144-146.(in Chinese)) " target="_blank">
[18]	苟季. 大体积混凝土水化热对结构的影响研究[硕士学位论文][D]. 广西：广西大学，2008：20-23.(GOU Ji. Study on the effect of mass concrete hydration heat on structure[M. S. Thesis][D]. Guangxi：Guangxi University，2008：20-23.(in Chinese)) " target="_blank">
[8]	迟宗立，任光月. 硫铝酸盐水泥在冬季泵送混凝土施工中的试验研究[J]. 混凝土，1999，(1)：44-46.(CI Zongli，REN Guangyue. Experimental research of sulphoaluminate cement in winter pumping concrete construction[J]. Concrete，1999，(1)：44-46.(in Chinese)) " target="_blank">
[14]	谭贤君. 高海拔寒区隧道冻胀机制及其保温技术研究[博士学位论文][D]. 武汉：中国科学院武汉岩土力学研究所，2010.(TAN Xianjun. Study on the mechanism of frost heave of tunnel in cold region with high altitude and related insulation technology[Ph. D. Thesis][D]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2010.(in Chinese)) " target="_blank">
[15]	熊炜，刘明贵. 多年冻土区桩基温度场模型研究[J]. 岩土力学，2009，30(6)：1 658-1 664.(XIONG Wei，LIU Minggui. Temperature distribution along piles in permafrost regions[J]. Rock and Soil Mechanics，2009，30(6)：1 658-1 664.(in Chinese)) " target="_blank">
[16]	张学富，喻文兵，刘志强. 寒区隧道渗流场和温度场耦合问题的三维非线性分析[J]. 岩土工程学报，2006，28(9)：1 095-1 100. (ZHANG Xuefu，YU Wenbing，LIU Zhiqiang. Three-dimensional nonlinear analysis for coupled problem of seepage field and temperature field of cold regions tunnels[J]. Chinese Journal of Geotechnical Engineering，2006，28(9)：1 095-1 100.(in Chinese)) " target="_blank">
[17]	张正荣. 传热学[M]. 北京：高等教育出版社，1982：15-17. (ZHANG Zhengrong. Heat transfer[M]. Beijing：Higher Education Press，1982：15-17.(in Chinese)) " target="_blank">