Foundation treatment and reinforcement refers to when the bearing capacity of the soil layer is poor, or the upper load is too large, in order to improve the robustness and stability of the foundation to meet the requirements of the superstructure bearing capacity and deformation, the soil layer can be strengthened.
Foundation treatment and reinforcement refers to when the bearing capacity of the soil layer is poor, or the upper load is too large, in order to improve the robustness and stability of the foundation to meet the requirements of the superstructure bearing capacity and deformation, the soil layer can be strengthened.
The main principle of foundation reinforcement is to improve soil firmness and reduce soil moisture content.
The MAIN PURPOSE OF foundation TREATMENT IS TO IMPROVE THE strength OF the soft foundation, ensure the stability of the foundation, reduce the COMPRESsibility of the soft foundation, reduce the settlement of the foundation, prevent the vibration liquefaction of the foundation soil during the earthquake, and eliminate the collapsibility, expansion and frost heaving of the special soil.
The methods of foundation reinforcement can be simply summarized as: digging, filling, changing, ramming, pressing, squeezing and mixing.
1And dig
The soft soil layer is removed and the foundation is buried in the high-carrying bedrock or in the hard soil layer. When the soft soil layer is not thick, it is most economical to dig away the soft soil layer and use the hard soil layer as the natural foundation.
2And fill in the
When the soft soil layer is very thick and the foundation needs to be reinforced in a large area, a layer of solid soil with a certain thickness can be directly backfilled on the soft soil layer to improve the bearing capacity of the foundation and reduce the bearing pressure of the soft soil layer.
3And in
Will be under the foundation of a certain range of soil to dig, fill with density, high strength of sand, gravel or ash, and layered compaction (vibration, pressure) to the design requirements of the compactness), suitable for when the soft soil layer is thick, only the local foundation reinforcement treatment.
4And ram
The soil is rammed with large tools to drain water and accelerate consolidation, thereby increasing soil compactness and carrying capacity.
5Pressure,
The foundation is rolled to make the foundation compacted and drained and consolidated. Pre-compaction consolidation method can also be used, that is, on the ground of the foundation range, piles of heavy objects for a period of time, compaction of the foundation, in order to improve its bearing capacity, reduce the settlement.
6,
First, the pile tube is driven into the soil, and the soil is squeezed to form a pile hole. Then, the pile tube is pulled out, and the filling material such as sand or plain soil, lime and gray soil is poured into the pile hole for compaction, or the pile tube is gradually pulled out with the filling material. This method is most suitable for strengthening soft saturated soil foundation, its principle is to rely on compaction soil, in order to improve the bearing capacity of the foundation, so called compaction pile, at the same time, also can quickly discharge the saturated water in the soil, accelerate the foundation subsidence stability.
7And then
Use deep mixing pile or rotary jet method to strengthen the foundation, use high pressure jet cutting soil, rotary jet slurry mixing slurry soil, so that slurry and soil mixed, condensation into a hard column or soil wall.
Shanghai Qiangqiang Foundation Engineering Co., LTD. 's business covers foundation pit engineering, pile foundation engineering, land and waterFoundation treatment , slope treatment and other engineering fields. Around" Excellent technology, reliable process ", construction fast "technical requirements, is to provide customers with land, water foundation engineering technical consultation, construction services and other comprehensive solutions of the entity enterprise.Contact Number: 400-100-2850
