【正文】 r oil (or gas) are a largescale database, a single storage capacity has more than one million cubic meters. Sweden, Norway, Italy and other countries rich in 4 water resources, many built in the ground station to increase the water gap. Canada39。s cold climate, so in large cities, the development of underground mercial center of the city of Montreal has a few underground mercial center even as a construction area of 810,000 square meters, forming an underground city. In addition, industrialized countries also paid attention to the protection of underground construction to play the traditional style of the city to improve the urban environment, urban space, etc. to expand the positive role played by. For example, the city of Nagoya, Japan in conjunction with urban roads alteration, in the ground layout of the mercial street and parking lot, stay out of the ground in addition to the necessary pedestrians, carriageway, in the central part of the park into a largescale city center. Other factors, such as Tokyo, Osaka and other places are also provided with the underground business street. Another example is the University of the United States a number of historical buildings and structures in order to preserve the unity of style and ease tension in the land, the construction of a number of underground construction, such as library, gymnasium, teaching Museum (Figure 2), achieving good results. These facts reflect the tiefbau increasingly wide range of applications. Underground construction of the type of underground construction can be classified according to the functions of military, civil, air works, industry, transport and munications, storage and other buildings, and underground utilities. For example: in the construction of military fortifications can be used for shooting, observation of construction, shelter construction, etc.), in civil construction, including residential buildings, public buildings, a variety of civil air defense engineering, industrial construction, transportation and munication construction, warehouse construction, as well as the types of underground utilities, such as underground water plant, solid or liquid waste 5 treatment plant, pipeline and other corridors. Several features of both largescale underground construction known as the underground plex. Tiefbau classified according to construction method, there are two types of open excavation and mining. Open excavation pletely backfilled after construction, the above did not build any buildings, known as singlebuilt underground construction。 above to build other buildings, known as the attached underground construction. Open excavation backfill the latter part of the construction, soil or bulldozers, and as bulldozers building construction or soil. Underground mining construction, usually in the deeper layers of rock or digging into the required space for more than a certain thickness at the top of the natural cover. In addition, China also has a habit of classification methods, into the underground tunnel type, tunneltype (usually mining), opening ceremony (equivalent to a single open excavation built) and the basement air (that is attached open excavation) . Road tunnel and the main difference is that the relationship between inside and outside the ground elevation, internal than external, as the tunnel, which is lower than the outside as the authentic. Underground construction of the design requirements for the underground architectural design requirements: ① choose engineering geological and hydrogeological conditions of a good place. Underground construction of the planning and design, must be plete and accurate information based on Geological Survey, full use of the favorable geological conditions, to avoid unfavorable factors. Arrangement in the soil in the ground floor of buildings, should be chosen with a certain capacity, and relatively uniform thick soil layer, avoiding the backfill layer, layer of mud, sand and other streaming sites。 in the rock should be chosen homogeneous lithology, structure simple, thick stone rock hard to avoid the fault fracture zone, seismic zone and instability, such as the 6 slope. In the plain areas, should pay attention to changes in groundwater level and its direct impact on the burial depth of underground construction, construction measures and construction methods。 in the mountains, rock fissures should be based on the volume of water and gushing location, organization of the underground drainage system construction and attention to surface water flow and the excretion of mountain torrents. ② to ensure the necessary protection. Although the underground construction itself with varying degrees of protection against all kinds of weapons, but the air defense of the military construction and engineering, but also the protection levels in accordance with the provisions of the various effects of different weapons, to conduct a prehensive protection of the design, layout of the various protection facilities, building structures and protection facilities, as well as a variety of holes, I have the appropriate protection, we should focus on building entrances and exits to ensure the security of the site. ③ the creation of an appropriate internal environment. Underground space in the internal environment, including air temperature, humidity, cleanliness, noise intensity, the illumination lights, interior colors and so on. Appropriate depends mainly on improving the quality of air in the ventilation design to ensure。 sound insulation and sound absorption of the appropriate use of measures to control the noise level allowed. Building to deal with such as a plete portfolio of in