金沙江特大桥综合勘察与分析

Abstract
Figure/Table
References (0)
Related Citation (0)

Download: PDF (1517 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Abstract：Research purposes： The super major Jinsha river bridge of the Lijiang-Shangri-La Railway is the first heavy railway suspension bridge in domestic. The bridge is located in alpine valley, rock mass of slope is in unloading and loose, with the characteristics of the development fault and frequent seismic activity, and the developed harmful geological bodies, such as rock debris, rock avalanche and falling rock. Based on the geology environment and the mechanical characteristics of foundation of the bridge, employed the comprehensive survey methods, analyzed the site and slope stability, got the foundation strength of the bridge to provide the basic data for the foundation installation and computation analysis of the bridge.Research conclusions：Adopted the comprehensive survey methods, such as the excavated tunnel investigation, drilling, engineering geophysics, geological survey, in-situ and indoor tests, analyzed and discovered: (1) The site of bridge is stability because of without the active fault in the Holocene passing, and the secondary geological disaster is lighter. (2) The bearing stratum for foundation is the schistose hard basalt, with high foundation strength. (3) The slope has deep unloaded and loosen zone, and part of developing the rock debris, rock avalanche and falling rock and discontinuous structural plane. However, the slope of bridge foundation is in stability, and the scheme of bridge is feasible after the reinforcement measures for the slope. (4) The comprehensive survey methods of this paper are reference for the engineering geological investigation of bridge in alpine valleys with high intensity.

Key words： Key words: railway suspension bridge alpine valleys comprehensive survey methods site stability slope stability foundation strength

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2015/V32/I4/1

［1］张广泽, 蒋良文,柴春阳. 丽香线金沙江大桥桥位工程地质比选［J］. 铁道工程学报，2013（10）:22-25. Zhang Guangze, Jiang Liangwen, Chai Chunyang. Comparative Study on Engineering Geology for Site Selection of Jinsha River Bridge on Lijiang—Shangri—la Railway ［J］.Journal of Railway Engineering Society, 2013（10）:22-25. ［2］中国地震局地壳应力研究所. 新建丽江至香格里拉铁路重点工程场地地震安全性评价报告［R］. 北京：中国地震局地壳应力研究所，2010. The Institute of Crustal Dynamics, China Seismological Bureau. The Seismic Safety Evaluation Report for the Key Engineering Site of the New Lijiang-Shangri-la Railway［R］. Beijing：The Institute of Crustal Dynamics, China Seismological Bureau,2010. ［3］中国地震局地壳应力研究所. 新建丽江至香格里拉铁路工程场区活动断裂专题研究报告［R］. 北京：中国地震局地壳应力研究所，2009. The Institute of Crustal Dynamics, China Seismological Bureau. The Active Fault Monographic Study Report for the Key Engineering Area of the New Lijiang-Shangri-la Railway［R］. Beijing：The Institute of Crustal Dynamics, China Seismological Bureau,2009. ［4］中铁二院工程集团有限责任公司. 新建丽江至香格里拉铁路金沙江大桥初步设计勘察报告［R］. 成都：中铁二院工程集团有限责任公司，2011. China Railway Eryuan Engineering Group Co. Ltd．The Geological Survey Report of Jinsha River bridge on the Preliminary Design of the New Lijiang-Shangri-la Railway［R］. Chengdu：China Railway Eryuan Engineering Group Co. Ltd，2011. ［5］铁道第一勘察设计院. 铁路工程地质手册［M］. 北京.中国铁道出版,2002. China Railway First Survey and Design Institute. Railway Engineering Geological Manual［M］. Beijing: China Railway Publishing House,2002. ［6］李坚. 铁路隧道物探模式探讨［J］. 铁道工程学报，2013（2）: 64-68. Li Jian. Discussion of Geophysical Exploration Pattern for the Railway Tunnel［J］. Journal of Railway Engineering Society, 2013（2）: 64-68. ［7］王长书,范承均,张子雄. 区域地质调查报告（丽江幅）［R］. 昆明：云南省地质局，1978. Wang Changshu, Fan Chengjun, Zhang Zixiong. The Regional Geological Survey Report(Lijiang of Yunnan Provice)［R］. Kunming: Yunnan Geologic Branch,1978. (编辑赵立兰)