Highway Engineering Testing

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Foundation Pit and Foundation Pile Testing

Foundations, foundation pits, and foundation piles are all core components of building foundation engineering and are key supports for the stable placement of buildings.

The foundation is the soil or rock layer beneath a building that bears the load. Its bearing capacity directly determines the stability of the building. Site investigation is required to determine soil properties and match building requirements.

A foundation pit is a temporary excavation constructed to build the foundation. Its depth and scope are determined by the foundation design. During construction, focus must be placed on controlling slope stability and the influence of groundwater.

Foundation piles are a type of deep foundation. They are driven into the ground to transfer building loads to deeper, competent soil or rock layers. Piles are often used when the shallow foundation soil has insufficient bearing capacity.

These three elements work together to form the underground "bedrock" system ensuring building safety.

Testing Products

Foundation

Foundation Piles

Foundation Pit

Testing Items

Foundation Bearing Capacity (Plate Load Test, Dynamic Penetration Test, Cone Penetration Test, Standard Penetration Test only)

Pile Integrity (Ultrasonic Method, Low Strain Method, Core Drilling Method only)

Bearing Capacity of Foundation Piles

Ground Surface Settlement

Layered Settlement (Subsurface Settlement)

Horizontal Displacement

Deep Horizontal Displacement (Inclinometer)

Anchor (Cable) Load Capacity

Anchor (Cable) Deformation

Soil Nail Load Capacity

Soil Nail Deformation

Soldier Pile (Column) Deformation

Internal Force of Pile Shaft

Bored Pile Hole Quality (Diameter, Depth, Inclination/Verticality, Sediment Thickness)

Groundwater Level

Pore Water Pressure

Earth Pressure

Tilt/Inclination (of retaining structures or adjacent buildings)

Internal Force of Supporting Structure

Anchor Axial Force

Testing Standards

Foundation (Natural foundation, improved ground/composite foundation): GB 50007, GB 50021, JTG 3363, TB 10018, JGJ 340, JTG 3223, DBJ 50/T-136

Foundation Piles (Precast piles, cast-in-place piles): JGJ 106, JTG/T 3512, GB/T 50081, JGJ 340, JTG 3420, JTG/T 3650, GB 50007, JT/T 738, JGJ/T 403, DBJ 50/T-136, GB 50497

Foundation Pit (Excavation, supporting columns/soldier piles, anchors/cables, soil nails, ground/soil): GB 50497, JGJ 8, GB 50026, GB 50982, GB 50086, GB 50007, GB 50330, JGJ/T 401, JGJ 120, GB 50739

Service Advantages

Technically Robust, Accurate and Reliable: Employs a senior certified testing team and utilizes high-precision testing equipment (e.g., static load testers, low-strain pile integrity testers, total stations). Strictly follows national codes and industry standards, achieving low data error rates. Produces authoritative and traceable reports, eliminating the risk of "compromised data."

Rapid Response, Flexible Adaptation: Offers emergency testing services for critical project needs. Adjusts testing plans flexibly according to project schedules (e.g., foundation pit excavation stages, pile installation batches) to prevent delays caused by lagging inspections.

Full-Chain Coverage, Hassle-Free: Provides "one-stop" whole-process testing services, from bearing capacity prediction during the preliminary investigation phase, to real-time deformation monitoring during pit construction, to pile quality verification during the acceptance phase. Eliminates the need for clients to coordinate with multiple parties, significantly reducing communication costs.