Parfect

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 experience in practical soil stabilization projects , long-term environmental monitoring and assessment, and extensive process control; The domestic complete set of highly efficient mobile soil stabilization equipment need to be developed. In view of the above analysis, the following countermeasures and suggestions are put forward. First, we should carry out collaborative research on efficient soil stabilization technology, technology and equipment, improve the level of industrialization and equipment technology, and promote the construction and development of soil stabilization engineering in China. Pay attention to the app...

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 the reinforced body through the friction action between the soil and the reinforcement, and the reinforcement is subjected to pulling force. The stress and shear stress of the soil between the reinforcing bars can make the reinforcement and the soil in the reinforced soil play their respective roles. The common geotextiles include geogrids, geotextiles and geocell. In addition to geosynthetics and geogrids, geocell can delay or cut the sliding surface of foundation failure, so that the bearing capacity of foundation is improved. Moreover, geocell can in the soil compartment given three-dimensional constraint, the soil particles become a geocell...

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 value is considered to be basically good, and the utilization of farmland soil is not restricted. if higher than the upper limit of environmental background value and below two level standard of soil environmental quality standard, it indicates that there is no pollution yet, the utilization of farmland soil is generally not limited, but the pollution source should be analyzed and controlled. Higher than the standard value of the two level of the soil environmental quality standard, it indicates that it is polluted. The soil environmental quality standard (GB15618-1995) and the soil pollution index (measured value / two standard value) method, gr...