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Pile Loading Test
GEOSEQ Test Services
Static Pile Load Test
The static pile load test is a comprehensive test procedure conducted to determine the load-bearing capacities of deep foundation structures and to verify design assumptions. This test is generally used to evaluate the performance of piles that will be used during construction and to ensure that the project is placed on a safe and durable foundation. The static pile load test is of vital importance in geotechnical and foundation engineering and provides critical data for accurate foundation design.
The test process begins with the selection of an appropriate pile, and the test pile is equipped with precise measuring instruments for load and displacement measurements. High-quality hydraulic jacks and suitable loading equipment are selected for the reaction beam or dead weight method. A loading frame is constructed by welding a reaction beam of adequate strength to the reaction piles surrounding the test pile. The hydraulic jack system placed under the reaction beam is gradually loaded to the predetermined loading values through an electric or gasoline control unit. During this process, each load increment is held for standard durations to observe the continuous behavior of the pile under load, recording its displacement (i.e., vertical deformation) and the load. After reaching the maximum designated load, the unloading process begins slowly and incrementally, recording the pile's deformation and load under each changing load increment. The comprehensive data obtained during the test determine key parameters such as the pile's maximum load-bearing capacity, load/displacement curves, and elastic and plastic behaviors. This information guides engineering decisions to optimize deep foundation design, improve construction practices, and ensure safety. Static pile load tests are considered a fundamental element of quality control and assurance in construction projects, critical for the durability and safety of structures.