Comprehensive History of Pipe Rack

In developed countries, 2 PE anti-corrosion coating steel pipe joint gap has existed for more than a century, at the same time of 2 PE anticorrosive system gradually perfect its scale has increasing trend.

As early as in 1833, Paris in order to solve the problem of 2 PE anti-corrosion steel pipe laying of underground pipeline and improve the quality of environment, started building 2 PE underground pipeline ditch together. So far, Paris 2 PE anticorrosive about 100 kilometers, the total length of steel tube has been built for 2 PE common ditch network system more perfect.

Since then, Britain's European cities such as London and Hamburg in Germany and the construction of 2 PE anticorrosive underground common ditch.

In 1926, Japan began to build 2 PE anti-corrosion steel pipe underground common ditch, by 1992, Japan already has 2 PE anti-corrosion steel pipe joint gap length about 310 kilometers, and the quantity in the process of growing.

In 1933, the Soviet union in Moscow, Leningrad and Kiev built two PE anti-corrosion steel pipe underground common ditch.

1953 in Madrid, Spain to build 2 PE anti-corrosion steel pipe under the common ditch. Also like Stockholm, Barcelona, New York, Toronto, Montreal, Lyon and Oslo city, have the more complete 2 PE anti-corrosion coating steel pipe underground common ditch system.

China

So far only China such as Beijing, Shanghai, shenzhen, suzhou, shenyang a few city has a comprehensive utility tunnel, according to incomplete statistics, about 800 km, the national construction mileage composite pipe gallery to the cause of the large area to promote is not money, is not a technology problem, but the consciousness, legal and conflicts of interest.

Comprehensive utility tunnel construction one-time investment is often higher than the cost of pipeline laying independent. According to statistics, Japan, Taipei, Shanghai composite pipe gallery of average cost (in yuan terms) respectively is 500000 yuan/m, 130000 yuan and 100000 yuan/m/m, is far more than the ordinary way of pipeline. But comprehensive save out the path of underground space, every time the excavation cost, the impact on the traffic efficiency and destruction of the environment, the comprehensive pipe gallery cost-benefit ratio obviously can not only look at how much. Taiwan had to Lutheran line 6.5 km measure have been carried out comprehensive utility tunnel as an example, built the comprehensive utility tunnel than not to build five hundred million new Taiwan dollars investment, but 75 years later, the benefit is nt $233.7 billion.

On tiananmen square in Beijing as early as 1958 laid under more than 1000 meters of composite mild steel pipe gallery. In zhongguancun west end in 2006 built in mainland China the second modern comprehensive pipe gallery. The comprehensive utility tunnel line 2 km long, feeder 1 km long, including water, electricity, cold, heat, gas, telecommunications and other municipal pipeline. Mainland in 1994, the Shanghai government planning and construction of the first article of the largest and longest composite pipe gallery - regularity of pudong new area comprehensive pipe gallery. The comprehensive utility tunnel, 11.125 km for the water supply, electric power, information and four cities such as gas pipeline. At present, Shanghai has built the songjiang new city demonstration underground comprehensive utility tunnel project (phase I) and "one ring and one line" of about 6 km anting new town of jiading district of composite pipe rack system. Joint development of China and Singapore suzhou industrial park infrastructure construction, after 10 years of development, the underground structural steel pipe corridor has also begun to take shape.