The new type of milling machine jointly produced by China Railway and ant has been delivered

On April 9, 11 days later, the representative of the quality inspection group of China Railway shield equipment research institute in the factory successfully completed the production. During this period, Lei Gang introduced in detail the development process of ant Heavy Industry Co., Ltd. The delegation said that the new type of milling and digging machine [...]


Leaders of China Railway shield equipment research institute stay in the plant to guide production

On March 30, the quality inspection team delegation of China Railway shield equipment research institute inspected the new factory of Ant Heavy Industry Co., Ltd. The delegation first visited the exhibition hall, and Lei Gang, chairman of the board of NTC, gave a careful answer. The delegation highly appreciated the company's historical construction projects and dozens [...]


Matters needing attention in treating soft soil foundation by drainage consolidation method

1.Drainage consolidation method is applicable to soft soil with thickness greater than 5m, but soft soil with sensitivity of more than 5 is not suitable. 2.The preloading time of drainage consolidation method should be guaranteed for more than 6 months. 3.The construction section of bridge head should be pre compressed before excavation of pile [...]


Analysis on the market competition of soil remediation

Because of the lag of soil pollution, and there are many difficulties in the identification and monitoring of soil pollutants in the past, the problem of land pollution has been paid less attention in the past. The relocation and abandonment of industrial enterprises is the product of accelerated urbanization in China in recent years. [...]


Development status of soil stabilization technology in China

In recent years, more and more soil stabilized projects in China have been growing rapidly, and have become the leading technology. Engineering amount from hundreds of cubic meters to several million cubic meters of soil, soil stabilization technology is not only applied in the remediation of contaminated soil, but also has become an important [...]


Research and development direction of polluted soil treatment technology

After more than 10 years of research and application, system of contaminated soil remediation technology including physical / chemical remediation, bioremediation repair and remediation, has been formed, and accumulated the application experience of repairing comprehensive engineering and soil pollution, the new research hotspot of the in situ bioremediation of contaminated soil and based on [...]


Development trend of silt resource utilization

The dumping of silt directly into the sea and landfill has shown its drawbacks. Under the condition that the content of heavy metals in the current sludge has not been effectively controlled, it is very easy to cause two pollution. As a new way of sludge treatment, the energy utilization of silt has not [...]


Suggestions on the development of soil stabilization technology

Although there are many engineering cases of soil stabilization technology research and application in China, there is still a lack of research in comparison with the United States, Europe and Japan. Materials, technology and equipment are difficult to cooperate with each other, and have limited support for actual engineering and environmental management. Lack of [...]


Geotextile reinforcement method of soft soil foundation treatment

In order to improve the bearing capacity of foundation, reduce the settlement and increase the stability of foundation, the artificial composite soil can be subjected to tensile, compressive, shear or bending action. It is suitable for various soft foundations. The basic principle of reinforcement is to transfer the tensile stress in the soil to [...]


How to evaluate the pollution of farmland soil in China

At present, most of the farmland soil pollution is evaluated by the two level standard of soil environmental quality standard (GB15618-1995) promulgated in 1995, and some of them use the upper limit of soil environmental background value to evaluate farmland soil pollution. That is: if lower than the upper limit of the environmental background [...]