Unlock underground space waterproof difficulties

China is rapidly urbanizing, land resources are scarce, urban traffic is increasingly crowded, and the quality of life is declining. The rational use of "underground space" can alleviate the shortage of land in large and medium-sized cities and make the city more three-dimensional. However, in the specific development and construction, the waterproof project of underground space is more difficult to implement than the ground.

Professor Chen Shiming of Tongji University, an expert in the field of structural engineering in my country, pointed out that the construction and development of urban underground space has two main meanings: one is to alleviate the shortage of land in large and medium-sized cities; the other is that if underground space can be used rationally, it will become another amazing city. Visible, underground space is an essential part of urban development. In addition to underground shopping malls, underground parking lots, subways, tunnels, military engineering, storage measures, underground space of high-rise buildings, etc., at present, the construction of urban underground projects such as river-crossing tunnels, various pipe network systems, and urban rail transit systems is also in my country. Fast progress.

The rational use of underground space improves the ground environment, promotes the three-dimensional development of urban space, can solve the problems of urban road zipper, air spider web, construction disturbance, comprehensive utilization of underground pipelines, save investment, and produce certain social and economic benefits.

However, the engineering structure design of underground space needs to have durability. Therefore, its waterproof level is required to be high and must reach the secondary standard. It is difficult to implement compared with the ground. In addition, the water seepage rate remains high for a long time. How to do a good job in underground space Waterproofing is a problem we need to solve urgently.

To this end, the China Building Waterproofing Association, in conjunction with the Waterproofing and Drainage Professional Committee of the Tunnel and Underground Engineering Branch of the China Civil Engineering Society, draws on the experience of the first "Underground Space Waterproofing Technology Forum" held during the 12th International Waterproofing Exhibition in 2014, and combines the current development of the waterproofing industry with the current status of underground space waterproofing technology, and is actively preparing for the "2016 Underground Space Waterproofing Technology Forum".

The forum is one of the major theme activities during the 14th Shanghai International Waterproofing Exhibition. At that time, the big names in the relevant fields of the waterproof industry will bring you wonderful keynote speeches (the waterproof king can't help but give a little spoiler here): the content involves the urban underground utility tunnel and its waterproof technology, the underground engineering joint leakage control technology, the Hong Kong-Zhuhai-Macao Bridge immersed tube tunnel waterproof technology, etc. Of course, of course, this is only a corner of the beautiful scenery. To explore the whole picture, from July 14 to 16, Waterproof King will wait for you at the Shanghai World Expo Exhibition Hall!