Supplementary note: this set of drawings mainly designs the design of cast-in-place pile and frame beam in the general drawing of the design institute, including: structural details of slab stairs, details of cast-in-place pile sinking, details of independent column foundation, and details of plane structure of non frame beams (LXX, WLXX). In the design of cast-in-place piles, the control of the depth of the pile pipe into the soil is generally based on the design of the pile length, and the penetration