关键词: 竖井, 雨季, 粘土条件, 施工组织

Abstract: Shaft construction in silty clay is characterized by abundant groundwater and easy collapse of shaft wall. And it is more difficult in rainy season. Dewatering and drainage are the keys of shaft construction. This paper introduces the design of supporting structure of shaft in silty clay stratum, expounds the methods of dewatering and drainage of shaft foundation pit during construction, and discusses the excavation method of shaft and the specific contents of monitoring during construction. The construction plan presented in this paper can ensure the safety of shaft construction in unfavorable geological conditions during rainy season.

Key words: shaft, rainy season, clay condition, construction plan