《土木工程英文论文》由会员分享，可在线阅读，更多相关《土木工程英文论文（8页珍藏版）》请在金锄头文库上搜索。
1、Buried tunnel project on the environment Abstract: a deeply buried tunnel far-reaching impact on the environment through the waterways with the sinking pipe related. Under the tunnel on the mainland in the region and the impact of surface water in the tunnel design and construction method of choice
2、to play the most important role. In considering the impact of the recent construction of a problem is the need to trench excavation for the tunnel may appear to be contaminated soil. And transporting the excavated soil up to the specialized equipment in order to receive their storage place is a seri
3、es of important new technologies and quality control measures for environmental problems. The most common is in any construction project will encounter environmental problems, namely, noise, dust and traffic congestion. In this paper, these issues and the current technology to address these issues a
4、nd measures are discussed. Key words: tunnel environment Characteristics of a Buried deeply buried tunnel tunnel has two fundamental characteristics: (1) It is part of an underground structure of the site, to ensure that heavy traffic conditions, construction, and does not mean that this area is ful
5、l use of The. Therefore, the construction space is very valuable. Will eventually be installed in the location of the river or canal bottom section of tunnel is very close in other areas to build manufacturing plants, ways, and this condition is unlikely in the field and reached the site. The advant
6、ages of planning and construction of pipe manufacture and the site will be ready to separate from the logistical advantages are obvious, there are extremely easy to implement effective quality control advantages. Tunnel work site on the environmental impact is also considerably less than the constru
7、ction of the tunnel fully all the circumstances at the scene; such as space requirements and construction of transport, these two issues is greatly easing. Of course, a prerequisite for these benefits is a ready-made for pipe suitable site. It must meet the conditions for a series of environmental i
8、mpact. In the Netherlands such as densely populated countries, to find a suitable site is not easy, but it is clear that once selected an available position, can be used repeatedly for quite a draw a crowd. Therefore, the overall plan for the tunnel construction is a common topic for discussion. Bot
9、h ends of the structure of a new underground tunnel link to the original structure to the existing underground, often in fact across the waters to replace an existing facility, such as ferry or bridge. It can also be a complement existing facilities in tunnels or bridges. Whether the decision to bui
10、ld a new tunnel the reason, its location will be in large part by the constraints of existing underground structure layout, and its construction design must also meet the existing transport only by the requirements of minimal interference. This means that the location in the tunnel area designers ra
11、rely have a choice, and thus have the position according to the established conditions and requirements to modify the tunnel design. This situation mainly affects the approach roads connecting part of the tunnel itself. However, because the approach road through the water by the formation of sub-com
12、ponents, it may require new measures to control the approaches to the scope of the construction pit drainage impact. Buried Tunnel approach roads are almost always located in the deposition zone, where the tunnel approach road down to the groundwater level below. At its completion, they are impervio
13、us structure, the surrounding water can not penetrate, theres just the nature of the environmental impact of a simple structure. However, during construction, environmental issues will play an important role. To build from the structures, construction of foundation must be excavated until the water
14、table following a number of meters deep, the traditional construction method requires the construction period in the continuous draining of the water. Unless further measures, or drainage will definitely lower the water level in the surrounding area, and will lead to a series of undesirable conseque
15、nces. Subsidence will occur, based on the surrounding buildings and structures will be affected, and even deep pile foundation soil settlement will also be passed by the friction down to the pile on the extra load. Subsidence and elevation of the dam sinking, and agricultural drainage water will be
16、affected. May also result in a completely different nature of environmental problems: the construction area may be contaminated soil. In this case, the construction of the excavation pit special attention to requirements and, if possible, should be used, such as soil mixed with water and water transport by pipeline, special methods. There must also be able to accommodate an approved place of contaminated soil. Number
