中国土木工程学会隧道与地下工程分科学会防排水学术委员会第四次学术交流会于1989年6月5日～8日在昆山召开,参加这次会议的代表来自20个省、市的铁道,人防,工程兵,市政建设、水利、冶金、煤炭、大专院校等68个单位108名代表。 6月5日上午大会在热烈气氛中开始,首先由防排水学术委员会主任,上海隧道工程设计 China Civil Engineering Society of tunnels and underground engineering branch of Academic Committee of drainage anti-drainage academic exchange conference was held in June 5, 1989 to 8 in Kunshan, to participate in the meeting representatives from 20 provinces and cities of the railway, Civil defense, engineers, municipal construction, water conservancy, metallurgy, coal, tertiary institutions, 68 units 108 representatives. On the morning of June 5, the General Assembly started in a warm atmosphere. Firstly, the director of Academic Committee of Waterproofing and Drainage, Shanghai Tunnel Engineering Design