CTI provides vertical static load test services for anchor piles related to foundation testing. The vertical static load test of anchor piles means that the vertical load is evenly transmitted to the foundation piles of the building, and the piles under different loads are measured by a single pile. After the top settlement, the Q-s curve and the s-lg t auxiliary curve of the static load test are obtained, and then the parameters such as the characteristic value of the vertical compressive bearing capacity of the single pile are calculated according to the curve.