The understanding of the subgrade slumping treatment, waiting for strength recovery to continue to follow the original design and construction methods, although successful, but there are also drawbacks: First, the long interval, the overall duration of the control is more unfavorable; Second, the bag of sand wells To improve the overall anti-slip effect is not obvious, the sliding surface has not been effectively dealt with, and there are still hidden dangers in the subgrade filling period. In several quick-fixing soft foundations, the price is relatively cheap and has been rapidly promoted. The scope of influence is related to the permeability coefficient of the soil, the permeability coefficient has a large influence range, the permeability coefficient is small, and the impact scope is small. Great care must be taken in the construction of the roadbed in the future. In addition, if the interval time is not well mastered, slipping again will waste a lot of valuable time.
Therefore, we believe that when conditions permit, it is recommended that such problems be treated as FCB piles as possible. Through cement or other colloidal materials to improve the physical and chemical properties of silt and silty soil, improve the soil strength and bearing capacity, and cement and soil piles as a root anchor pile to connect the upper and lower soil layers as a whole, can make Its anti-slip effect is greatly improved.
After fully learning lessons learned from the port interchange, we carried out additional geological exploration on the soft base section of the Zhongjiang Expressway that was started later, and carried out a detailed survey of key predicated sections such as the vacuum preloading section in the design. The section that is not suitable for vacuum preloading shall be removed, and the impervious curtain of the mixing pile shall be increased to ensure its airtightness and watertightness, and the original design shall be maintained in two places. After the implementation of vacuum preloading, no port-like interchange occurred.
Air compressor is a general industrial equipment, it is very important for industries. With the help of air compressor, air is compressed and treated by various methods. For Nitrogen Generator and Oxygen Generator, air compressor is used to provide the raw material, the compressed air. There are several kinds of air compressor, piston type, screw type and centrifugal type.
Because nitrogen/oxygen generators are designed for non stop operation, screw air compressor is widely used. This screw air compressor provide compressed air with pressure up to 13 bars, good for the operation of nitrogen/oxygen generators.
Gas Compressor specification:
Capacity:1-200 m3/min
Max pressure: 13 bar
Air Compressor,Screw Air Compressor,Mobile Air Compressor,Durable Air Compressor
Shandong Gamma Gas Engineering Co. Ltd. , https://www.gammagases.com