Research and design of sewer jacking system At binh bridge intersection, Hong Bang district, Hai Phong city

Abstract

The article presents the results of research on the design of a sewer pushing system applied in practical construction at the Binh Bridge intersection, Hong Bang District, Hai Phong City. Pushing is a technology used to install underground pipelines and sewer pipes. The hydraulic pushing system is used to push specially designed sewer segments into the ground. This is the primary method applied for the construction of circular cross-section tunnels with a maximum diameter of up to 3 meters, suitable for use in technical tunnels or pedestrian tunnels in urban areas. The construction of pushing the sewer segments is carried out from vertically dug shafts. After the segments are pushed, the sewer itself acts as a supporting structure, and soil excavation is done inside it, protected by the sewer lining. This construction technology does not affect normal surface traffic organization.

Keywords: Horizontal pressing; jacking; frictional resistance; underground works; horizontal pressure.