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To discuss the application scope and importance of foundation
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foundation subsidence reinforcement project is a key engineering technology in the treatment of foundation settlement. It is mainly divided into two categories: static pressure grouting and high pressure jet grouting. Among them, static pressure grouting can be divided into filling or fissure grouting, seepage grouting, compaction grouting and split grouting.
1. Working principle
foundation subsidence reinforcement project is mainly to inject grout into the foundation soil layer and make use of the filling and solidification properties of grouting materials to compact the soil layer. The grouting material can form a solid solid in the soil layer, increase the compactness and strength of the soil layer, and thus improve the bearing capacity and stability of the foundation.
2. Engineering steps:
Concrete steps of grouting reinforcement method include:
- Foundation investigation: Conduct investigation and analysis of the foundation soil layer to determine the scope and depth of grouting reinforcement;
- Design scheme: According to the survey results, make the design scheme of grouting reinforcement, determine the grouting materials and grouting methods;
- Construction preparation: prepare grouting equipment and materials, and carry out preparatory work before construction;
- Grouting construction: grouting construction shall be carried out according to the design scheme, and grouting reinforcement shall be gradually implemented;
- Quality inspection: The quality inspection of the foundation after grouting reinforcement is carried out to ensure that the reinforcement effect meets the design requirements.
3. Scope of application:
- Filling or fissure grouting: mainly suitable for grouting in large caves, structural fracture zones, tunnel lining walls. Seepage prevention of rock and soil layer, rock fissures, joints and faults, consolidation grouting.
- Infiltration grouting: only applicable to sandy soil above medium sand, or rock with cracks, gravel soil. It mostly occurs in loose sand and pebbles.
- Compaction grouting: mainly suitable for clay foundation.
- Split grouting: mainly suitable for low permeability soil layer.
- High pressure jet grouting: suitable for the treatment of silt, silt soil, cohesive soil, silt, sand, gravel soil, artificial filling soil and other foundations.
4. Importance:
foundation subsidence reinforcement project can be applied flexibly in soft foundation (silt, silty soil, cohesive soil, etc.), lithologic geology (rock cracks, caves, rock masses, etc.), complex geological conditions (multi-layer strata, high groundwater level, uneven soil quality, etc.). Solve the problems such as insufficient bearing capacity of foundation and excessive settlement of foundation. Through detailed investigation and analysis of geological conditions, we can formulate the grouting reinforcement scheme, select the appropriate grouting materials and construction technology, and ensure the reinforcement effect and project quality. At the same time, foundation subsidence reinforcement projects can also be combined with other foundation treatment methods, such as vibration reinforcement and soil and rock perfusion, to jointly improve the overall performance of the foundation.
The technology of non-destructive and controllable soil solidification is an upgrade of traditional foundation subsidence reinforcement project to a new field of building safety. Traditional foundation subsidence reinforcement projects mainly use cement slurry, which has poor drainage capacity and is prone to secondary settlement after foundation reinforcement. The non-destructive and controllable soil solidification technology uses new materials, new technology, lightweight equipment, simple and fast operation method, especially suitable for complex geology, harsh construction environment, erratic construction or not easy to dismantle changing building foundations, foundation reinforcement has more advantages.
Hengxiang Hongye lossless controlled soil solidification technology using new special composite materials, using small hole minimally invasive technology, can quickly strengthen the foundation of high-rise buildings and industrial plants, 1-90s consolidation of soil, efficient completion of lifting and tilting.
foundation subsidence reinforcement project is an effective means of foundation reinforcement with a wide range of application. It can solve problems such as unstable soil layer and insufficient bearing capacity, improve the bearing capacity and stability of foundation, and ensure project safety. In practical projects, appropriate grouting materials and grouting methods should be selected according to specific conditions to ensure that the reinforcement effect meets the design requirements.
foundation subsidence reinforcement project https://en.hengxianghongye.com/Subsidence-Repair.html