Herein based on the engineering practice,especially for the deeper water jacket,new design method is recommended in this paper in order to enlarge the view on mudmat design,and to meet various basic design data s requirement and solve the structural framing problem.

The strength of side plate of the mudmat structure is checked.

In this paper,by case study of tenth building in Heaven Sent Home residential area,the author introduces several situations met during the design process of basement & the main structure,including pile foundation design,sixth degree civil air defence basement roof design and the seismic reflection of the main building.

According to the importance of pile and raft foundation design in the high-rise building foundation,it introduces two methods about pile and raft foundation design,reducing settlement design and variable-rate leveling design,and represents their design principle,design content and steps,and good economic performance gaining in practical project.