由中国土木工程学会主力学及基础工程学会桩基础学术委员会与中国工程建设标准化协会地基基础委员会深基础分会的联合年会——全国第四届桩基础工程学术会议，于1998年9月22日～26日在湖南省张家界市召开，出席会议的有15个省、市、自治区的有关单位和7所高等院校、12个科研单? A joint annual meeting of the Foundation Committee of the Chinese Academy of Civil Engineering and the Foundation of the Basic Mechanics Committee of the Institute of Fundamental Engineering and Basic Engineering of China Society of Engineering Engineers and the Foundation Committee of China Engineering Construction Standardization Association - The Fourth National Conference on Pile Foundation Engineering, September 22, 1998 On the 26th, it was held in Zhangjiajie City, Hunan Province. At the meeting, there were 15 provinces, municipalities and autonomous regions, 7 institutions of higher learning, and 12 scientific research lists.