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长江下游地区超超临界发电机组引水盾构隧道工程地质论证

发表时间:2017-12-29  浏览量:1675  下载量:460
全部作者: 孙茜,阎长虹,余卫新,袁裕财,许宝田,刘经纬
作者单位: 南京大学地球科学与工程学院;南京理工大学紫金学院;江苏省常熟发电有限公司
摘 要: 发展高能效超超临界发电机组已成为当今世界火力发电的重要趋势。针对长江下游地区发电厂超超临界发电机组引水工程问题进行相关研究,分析隧道引水相比于明渠引水的优势,以及长江下游地区深水隧道施工和运营面临的主要工程地质问题。结合苏南某发电厂扩建工程兴建的2×1 000 MW 燃煤机组隧道引水工程,从引水工程方案选择、隧道风险因素分析、盾构隧道空间优化分析这三个方面进行施工方案的论证,并论述盾构隧道穿越长江大堤和江底复杂地层施工需要注意的问题。这一研究成果对类似工程具有示范意义。
关 键 词: 岩土力学;超超临界机组;长江下游地区;引水隧道;方案论证
Title: Engineering geological assessment of diversion shield tunnel of ultra-supercritical generating units in the lower reaches of the Yangtze river
Author: SUN Qian, YAN Changhong, YU Weixin, YUAN Yucai, XU Baotian, LIU Jingwei
Organization: School of Earth Sciences and Engineering, Nanjing University; Zijin College, Nanjing University of Science & Technology; Jiangsu Changshu Electric Power Company Limited; China Railway 14th Bureau Group Co., Ltd.
Abstract: Ultra-supercritical generating units have become an important trend in the development of thermal power in today’s world. In this paper, related research about diversion project of ultra-supercritical generating units of power plants in the lower reaches of Yangtze river is done. The advantages of tunnel diversion compared to the open channel diversion and the main engineering geological problems of construction and operation of deep water tunnel in the lower reaches of the Yangtze river are analyzed. Combined with a tunnel diversion project of 2×1 000 MW coal-fired units built in a power plant expansion project in the south of Jiangsu province, this paper demonstrates the program from three aspects: the selection of diversion works, risk factors of tunnel and space optimization analysis of shield tunnel, and discusses the problems that need attention of the shield tunnel crossing the Yangtze river embankment and river bottom stratum complex construction. The results have implications for similar projects.
Key words: rock and soil mechanics; ultra-supercritical unit; the lower reaches of the Yangtze river; diversion tunnel; scheme demonstration
发表期数: 2017年12月第24期
引用格式: 孙茜,阎长虹,余卫新,等. 长江下游地区超超临界发电机组引水盾构隧道工程地质论证[J]. 中国科技论文在线精品论文,2017,10(24):2777-2785.
 
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