Hello, you want to ask the design regulation of the reinforcing cage for high-speed rail pile foundation is15m, is it ok to design only12m? The design regulation of reinforcing cage for high-speed rail pile foundation is 15m, and only 12m is allowed. In practical engineering, the design depth and length of reinforcing cage for high-speed rail pile foundation should be comprehensively considered according to geological conditions, soil bearing capacity, construction requirements and other factors. The design stipulation is 15m, so the design must be carried out according to the design stipulation to ensure the stability and safety of the pile foundation. If only12m is designed in violation of regulations, the future buildings will be prone to potential safety hazards, and at the same time, they will not meet the requirements. Therefore, future inspection and testing should be punished, which will easily lead to various problems. Therefore, the design of reinforcing cage for high-speed rail pile foundation is specified as 15m, and only 12m is allowed.