On October 25-27, the 11th China International Pile and Deep Foundation Summit was held at the Sheraton Shanghai Waigaoqiao Hotel, with more than 600 pile foundation technical experts from more than 10 countries at home and abroad, as well as the construction of pile foundation projects from all over the country More than a hundred units including enterprises, machinery and equipment manufacturing enterprises, survey and design units, and scientific research institutes participated in the meeting.