Parfect

Powder jet pile method, with special equipment, the reinforcing binder powder materials (cement or lime) through transmission of compressed air, and mix with soil, to produce physical and chemical reactions after full forming a certain strength pile. This method is a kind of soft soil foundation treatment method for improving soil quality and foundation strength. It can be widely applied to foundation reinforcement such as soft soil, sludge, miscellaneous fill and soft clay. Powder jet pile is a deep mixing method in soft foundation treatment, which is using compressed air to transport lime and cement and other powder material in soft soil, in situ soil mixing , compaction, exchange, coagulation. Through a series of physical and chemical functions, such as ion exchange, agglomeration and chemical interaction between reinforcing material and soft soil, forms a column reinforced soil with integrity, water stability and a certain strength, and make up a composite foundation with in-situ ...

Most of the mud from the small ponds or river in the countryside is directly backfilled to farmlands nearby, which is the most common sludge disposal method used in rural areas in the past few decades. This sludge disposal method has many disadvantages: Some of the sludge has heavy metal pollution, or contains a lot of household waste and construction waste, and farmers refuse to accept it; After returning to the fields, it takes several years to dry. After airing, it needs second treatments. During this period, the fields can not be planted, and the government should pay farmers 1 ~ 2 years’ compensation fees in the form of rent. Cleaned out sludge of coastal rivers, lakes, ponds, and a considerable part of ithave been dumped at sea. In this way, the freight is expensive and tidal, and mud may be washed back inland. In Ningbo, China, the sludge being cleared will be dumped into sea which cost 176 RMB per cubic meter. The river silt in urban areas are often polluted, will usually...