Open AccessLong-Distance Pipe Jacking in Complex Urban Geological Environment
Author(s) -
Yanzhang Gong,
Yang Liu,
Qigao Li
Publication year - 2022
Publication title -
journal of architectural research and development
Language(s) - English
Resource type - Journals
eISSN - 2208-3537
pISSN - 2208-3529
DOI - 10.26689/jard.v6i1.2888
Subject(s) - jacking , civil engineering , pipeline (software) , geotechnical engineering , engineering , geology , mining engineering , mechanical engineering , art , performance art , art history
A steel underground pipeline with a diameter of 2.4 m and a total length of 3,617 m (plate thickness of 26 mm) has been constructed in a city in central Hubei, and the engineering, procurement, and construction (EPC) project has been lifted from the upstream channel to supplement water to the downstream lake inside the city. Through preliminary geological survey data, site topographic and geomorphic survey, urban construction, as well as the requirements of the construction party, the preliminary arrangement of working wells and receiving wells as well as the selection and customization of pipe jacking machines have been proposed. Frequency conversion motor and remote monitoring technology are adopted for geotechnical change and long-distance pipe jacking. Through detailed survey, the rock and soil change section as well as gradual change conditions have been determined, the accuracy of construction mechanics calculation and construction operation control have improved, the basis and analysis basis are provided, and some experiences in construction operation are summarized.