【作者】 任文峰；

【导师】 王星华；

【作者基本信息】 中南大学 ， 城市轨道交通工程， 2013， 博士

【摘要】 随着地下工程的发展,地下水几乎一直伴随着地下工程左右,地下水的防治问题也一直困扰着工程界。地下工程在有承压水的情况下,地下水的防治就更加复杂,问题也更加突出。近年来,我国修建了大批山岭隧道、跨江河隧道、海底隧道、矿山坑道及各种地下工程,多数隧道都要穿过各种复杂的地质构造单元,所通过的地层中均存在着或多或少的断层破碎带、岩脉侵入带等不良地层。这些隧道所遇到的地下水大部分都有一定水压。由于这些地层的岩石破碎、节理裂隙发育、透水性能好,当隧道施工时,如若不能很好地控制地下工程所遇到的高压地下水,将会造成突水、突泥等严重事故,严重影响到施工人员的生命安全,影响到地下工程的安全运营。因此,为了保证隧道的施工安全,对隧道施工过程中所遇到的高压地下水必须加以控制与疏导。本文以国家技术研究发展计划(863计划)项目(编号：2007AA11Z134)为依托,采用理论研究与分析、数值模拟、现场试验及现场监控相结合的方法进行研究,提出了水体-岩体相互作用以及裂隙岩体的渗流场、位移场和应力场耦合的数值模型,在三场耦合研究结果的基础上提出高水压隧道最大涌水量的计算公式,制定出高水压条件下隧道的止水注浆方案,并以精伊霍铁路北天山隧道为依托,对不同地层的注浆工艺进行研究,应用数值模拟计算仿真分析隧道水压力、涌水量及开挖过程中应力、位移与涌水量的变化,来验证理论分析结果的正确性,并以此指导实际工程的施工。研究成果将为我国今后复杂地质条件下具有高水压隧道、矿山坑道以及城市地铁等地下工程的地下水处治技术与施工等方面提出了新思路,为工程实际提供具有实践意义的理论依据,推动了隧道注浆技术的基础理论和施工实践的进步,促进了隧道科学的发展,为地下工程的设计和施工起到了极大地推动作用。同时对我国的重要交通干线跨越长江、黄河以及渤海湾等大江大河与海峡的水底隧道以及长大山岭隧道都具有重要的指导意义。研究所形成的施工工法将为我国具有高水压隧道不良地层的注浆施工提供技术保障,也为我国隧道的防排水系统设计理论提供依据。这也为我国修建各种高速公路隧道、高速铁路隧道以及矿山坑道提供了一个可靠的施工方法,消除地下水对隧道的影响,从而可以节省大量的施工费用,因此而产生的的社会效益、经济效益和国防建设的意义将是巨大的。更多还原

【Abstract】 With the rapid development of underground engineering, groundwater is almost always accompanied by underground engineering, groundwater preventing problem has plagued engineering field. Underground work in the confined water, groundwater control is more complex, the problem becomes more and more prominent. In recent years, our country built a large number of mountain tunnel, cross river tunnel, mine tunnel and all kinds of underground engineering, the tunnel will most through various complicated geological tectonic units, through strata are more or less broken fault zone, rock veins invasion zone and other undesirable formation. These tunnels have most of the groundwater has a certain pressure. As a result of these strata rock crusher, the jointed and fractured, waterproof performance is good, when the tunnel construction, if not very good control of underground engineering the high pressure groundwater, will cause the water inrush, burst mud and other serious accidents, serious influence to construction personnel life safety, affect the safe operation of underground engineering. Therefore, in order to ensure the construction safety of tunnel, the tunnel construction encountered in the process of high pressure groundwater must be controlled and grooming.Based on the national technology research and development program of China (863Program)(project number:2007AA11Z134) as the basis, the theoretical research and analysis, numerical simulation, field test and field monitoring of the method of combining research, put forward water-rock interaction and fractured rock body seepage field, displacement field and stress field coupling a numerical model, in the three coupling field based on the research results of the proposed maximum gushing water in tunnel with high water pressure calculation formula, developed under high water pressure tunnel waterproof grouting scheme, and to the North Tianshan Mountain for railway tunnel as the basis, for different strata grouting technology was studied, using numerical simulation numerical simulation analysis of tunnel water pressure, discharge and excavation process of stress, displacement and water inflow changes, to verify the correctness of theoretical analysis, and to guide the actual project construction. Research results for the future of our country under the complex geological condition with high pressure tunnel, mine tunnel and underground engineering of city ground water treatment technology and construction etc and put forward new ideas, for the practical engineering with the practical significance of the theoretical basis, promoted the tunnel grouting technology basic theory and construction practice of progress, promoted tunnel scientific development, for the design and construction of underground projects played a great role in promoting. At the same time our important transport routes across the Yangtze River, the Yellow River and the Gulf of Bohai River and channel underwater tunnels as well as the mountain tunnels have important guiding significance. Research into construction method will provide China with high water pressure tunnel bad strata grouting construction to provide technical support, but also for our tunnel waterproof and drainage system on the basis of. This also is our country build highway tunnel, tunnel of high-speed railway and mining tunnel provides a reliable method of construction, eliminate groundwater influences on the tunnel, which can save a lot of construction cost, thus creating the social benefit, economic benefit and national defense construction significance would be great.更多还原