Soil Stabilization for Basement Dig Outs
LINCOLN COMPANY PERFORMS SOIL STABILIZATION FOR CONTRACTORS AND HOMEOWNERS DURING EXCAVATION FOR STRUCTURE SUPPORT. SOIL GROUTING CREATES A SOLIDIFIED SOIL MASS, PROTECTS NEIGHBORING STRUCTURES, AND UTILITIES DUE TO SOIL LOSS DURING EXCAVATIONS FOR BASEMENT DIG OUTS.
- BASEMENT DIG OUT
- BASEMENT EXCAVATION
- STABILIZE SOILS FOR BASEMENT EXCAVATION
Often due to lot and/or structure constraints, it is desirable to increase living or occupiable space by installing or extending a homeowners or commercial properties structural foundation to a more desirable depth. In cohesive soils there is little need of grouting and in most instances, cohesive soils remain in place unless excavation depths exceed three feet or more.
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Conventional piles or piers are commonly used for structure support and work on a concrete foundation footings and walls. In locations where granular soils are found excavation becomes difficult due to soil loss. Loose unstable soils can undermine stone foundation's neighboring structures, utilities, floor slabs, etc due to soil loss.
Soil stabilization can be performed in advance of construction needs with planned ground improvement techniques.
Permeation Grouting is one that involves the injection of a high viscosity grouts, sodium silicate or microfine cement, into the pores of granular soils without displacing or changing the soil structure. Permeation grouting is used to either increase the strength and cohesion of the soil or decrease it’s hydraulic conductivity (water tightening).
The primary purposes are to solidify soils for structure support, to inhibit soils movement during excavation, or to inhibit water migration. Soil borings and a sieve analysis are performed to determine feasibility, material selection analysis and volumes required. Grout fluid is injected at low pressure to replace water or fill in voids between the grain particles of the soil. The grout bonds the granular particles together to create a mass of solidified soil, resulting in reduced permeability, increased strength and stability.
WHERE TO USE SOIL GROUTING?
- Use soil grouting in granular soils when underground utilities or site conditions inhibit other methods of support or types of grouting.
- In support of stone foundation pipelines or structures when excavation of underlying soil is anticipated.
- Strengthening of soil mass to accept new loads or to stabilize existing structures such as pipelines or buildings.
ADVANTAGES
- Can be performed days or months in advance of construction.
- Can eliminate need for shoring, underpinning, or dewatering.
- Grouts are environmentally benign.
- Soil strength can be adjusted for permanent support or excavation purposes.