我院工程地质教研室已故副教授张忠胤先生于1959年将传统的移液管法测定粘性土粒度成分的原理,与比重瓶测定土粒比重的原理相结合,提出了虹吸比重瓶法的原理及方法。土质组的同志们参加了这项技术革新试验。去年我们又重新作了对比试验,并在原有的基础上作了改进。经多年的实践,不断地完善,至目前已是一种比较成熟的颗粒分析方法,也是我国自 Professor Zhang Zhongyin, the late associate professor of Engineering Geology Department of our hospital, put forward the principle and method of siphon pycnometer method by combining the principle of traditional pipette method to measure the particle size composition of cohesive soil with the principle of determining the proportion of soil particles by pycnometer in 1959. . Soil group comrades participated in the technological innovation test. Last year we again made a comparative test, and made improvements on the basis of the original. After years of practice, and constantly improve, up to now is a more mature particle analysis method, but also our self