瓦纳温泉发育特征及其对隧道工程影响分析
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摘要
瓦纳温泉是当地有名的温泉之一,西南某新建铁路隧道距离该温泉约1. 5km,温泉对隧道工程带来的影响是勘察设计人员重点关注的问题。在收集相关资料与结合现场调查的基础上,分别从地热背景、水化学特征、同位素特征、热储温度、埋藏深度及地热水成因类型等方面进行分析,得出瓦纳温泉的发育特征。在该温泉是断裂型成因的结论上,重点结合隧址区构造发育特征,宏观上对隧道高地温风险进行初判。通过钻孔实测温度数据分析隧道热害等级,并进一步分析预测隧道高地温分布段落及其分布规律。针对隧道高地温段落提出相应的施工建议。
Wana hot spring is one of the local famous hot springs and there is railway tunnel 1. 5 km away from it in the southwest. The influence of the hot spring on the tunnel engineering is the key issue for survey designers. Based on the collected relevant data and field investigation,this paper obtains the development characteristics of Wana hot spring with the analysis of the geothermal background,hydro-chemical characteristics,isotopic characteristics,thermal storage temperature,buried depth and geothermal water origins. Then,based on the conclusion that the hot spring is the cause of fractures,the risk of tunnel high temperature is initially judged with a view to the structural development characteristics of the tunnel area. And through temperature data measured from the borehole,tunnel thermal damage grade is analyzed,and the high ground temperature distribution section and its distribution rule are further analyzed and predicted. Finally,corresponding construction suggestions specific to tunnel high ground temperature section are put forward.
Wana hot spring is one of the local famous hot springs and there is railway tunnel 1. 5 km away from it in the southwest. The influence of the hot spring on the tunnel engineering is the key issue for survey designers. Based on the collected relevant data and field investigation,this paper obtains the development characteristics of Wana hot spring with the analysis of the geothermal background,hydro-chemical characteristics,isotopic characteristics,thermal storage temperature,buried depth and geothermal water origins. Then,based on the conclusion that the hot spring is the cause of fractures,the risk of tunnel high temperature is initially judged with a view to the structural development characteristics of the tunnel area. And through temperature data measured from the borehole,tunnel thermal damage grade is analyzed,and the high ground temperature distribution section and its distribution rule are further analyzed and predicted. Finally,corresponding construction suggestions specific to tunnel high ground temperature section are put forward.
引文
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[19]刘争平.铁路工程地热勘察关键技术研究[J].铁道标准设计,2014,58(S):1-4.
[2]陈伟,蒋良文,杜宇本.西南某新建铁路地热水特征浅析[J].铁道工程学报,2011(9):1-6.
[3]云南地质工程第二勘察院.新建西南某铁路水热活动特征及热害评估专题研究报告[R].昆明:云南地质工程第二勘察院,2011.
[4]屈丽丽,徐世光,杨秀梅,等.怒江跃进桥温泉水化学特征及成因分析[J].科学技术与工程,2011,11(20):4723-4729.
[5]刘丹,贾疏源,姜云,等.康定木格措景区热矿水特征及成因模式[J].铁道工程学报,1996(2):155-162.
[6][加拿大]克拉克(Clark I.D.).水文地质学中的环境同位素[M].张惠,张新基,译.郑州:黄河水利出版社,2006:144-206.
[7]沈玲玲.高黎贡山地区地热异常特征及对隧道建设影响的初步研究[D].成都:成都理工大学,2007.
[8]中华人民共和国铁道部.TB 10027—2012铁路工程不良地质勘察规程[S].北京:中国铁道出版社,2012.
[9]铁道部经济规划研究院.TZ 204—2008铁路隧道工程施工技术指南[S].北京:中国铁道出版社,2009.
[10]赵平,李东,陈松.玉蒙铁路旧寨隧道高温地热水分析研究[J].铁道工程学报,2008(4):56-61.
[11]尹士清.向莆铁路长大隧道群地温预测和测试分析[J].铁道工程学报,2015(4):91-95.
[12]焦国锋.拉萨-日喀则铁路吉沃西嘎隧道高地温预测[J].铁道建筑,2013(7):74-76.
[13]李光伟,杜宇本,蒋良文,等.大瑞铁路高黎贡山越岭段主要工程地质问题与地质选线[J].地质力学学报,2015,21(4):73-86.
[14]舒磊,楼文虎,王连俊.羊八井隧道地温分析[J].冰川冻土,2003,25(S1):24-28.
[15]杜宇本,陈伟,邓睿,等.玉磨铁路主要地质灾害与地质选线[J].工程地质学报,2016,24(S):495-501.
[16]杨新亮.拉日铁路吉沃希嘎隧道地热异常特征与防治措施分析[J].铁道标准设计,2014,58(7):107-111.
[17]雷俊峰.拉日铁路吉沃希嘎隧道地热影响分析及工程对策[J].铁道建筑,2013(9):31-33.
[18]杨翔,陈松,郦亚军.隧道高温地下水处理理念探讨[J].现代隧道技术,2013,50(3):8-16.
[19]刘争平.铁路工程地热勘察关键技术研究[J].铁道标准设计,2014,58(S):1-4.