Treatment of soft soil foundation by cement soil mixing method

Mixing the cement or (lime) material with the soft soil foundation into a column by excavator mounted mixing head, and the column becomes a cement clay pile, it has a certain strength and water stability. The composite foundation is composed of mixed column and surrounding soft soil, which can improve the bearing capacity and strength of foundation, and increase the modulus of deformation of foundation. Otherwise, the soft foundation strengthened by mixing method reduce the foundation settlement, prevent the flow of the water, strengthen the stability of the foundation, and also can prevent the infiltration of groundwater.


Soft soil foundation with normal consolidated silt, silty soil and cohesive soil with high water content and silty soil is used to treat peat soil or ground water, and its applicability should be determined by experiment. Construction of highway and bridge on soft soil foundation, as long as the design and construction measures are proper, can ensure the stability and use effect. Design and construction scheme of embankment on soft soil foundation, should be combined with the local geological conditions, material supply, investment environment, construction requirements and environmental protection and other factors, fully demonstrated according to local conditions, local materials, stage construction, comprehensive treatment principle, the design and construction scheme of advanced technology and reasonable in economy.

PARFECT excavator mounted mixing head injecting cement into the soft soil foundation for the coming bridge construction

PARFECT soil stabilization equipment can transfer the soil binder through the air compressor to the mixing head which is mounted on the excavator, and mix with the soil to improve the strength of the foundation.

Learn more about this product

评论

发表评论

此博客中的热门博文

Treatment of soft soil foundation by high pressure injection method

图片
The method is to use a drilling machine to inject a nozzle pipe into the soil layer. The slurry or water is ejected from the nozzle at high pressure to form a jet stream to destroy the soil layer. When the energy of high speed jet fluctuation was shaped, the dynamic pressure is greater than the strength of soil structure, soil particles stripping down from soil, part of the particles spread out with slurry or water, other soil particles mixed with slurry under the jet impact force, centrifugal force and gravity force, re arrange regularly according to the size of a certain percentage of soil and quality. After the slurry solidified, forming a solidified body in soil, can improve the bearing capacity of the foundation, reduce the settlement, can also improve the effecf of supporting and anti-seepage. It is suitable for foundations of silt, cohesive soil, loess, sandy soil, artificial fill and crushed stone soil. PARFECT soil stabilization equipment can transfer the soil binder t
阅读全文

What is soil remediation

图片
Contaminated soil remediation refers to physically, chemically and biologically transfer, absorb, degrade and transform pollutants in soil, which concentration can be reduced to acceptable levels, or turn toxic and harmful pollutants into harmless substances. Fundamentally, the technical principles for contaminated soil remediation may include: 1.Change the existing form or the mode of combining with the soil of pollutants in soil, reduce the mobility and bioavailability in the environment. 2.Reduce the concentration of harmful substances in the soil. The United States invested nearly $100 billion in contaminated soil restoration in 1990s. The theory and technology of contaminated soil remediation have become the frontiers of environmental science and technology research. The process of soil restoration is quite long, the need to solve the problem of soil pollution, it needs scientists of different disciplines, such as soil science, agronomy, ecology, biogeochemistry, marine scien
阅读全文

Traditional sludge disposal methods

图片
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
阅读全文