Initiation Technology of Sewage Pipe Jacking in Complex Urban Environments
The relocation project of the first phase sewage pipeline at Ji'an Street Station,without affecting the busy traffic on the current road,adopts the mud water balance pipe jacking method to construct the new relocation route and pass through the road below.Before construction,carefully investigate the surrounding environment to avoid damaging unexplored pipelines during the jacking process.The steel ring is embedded in the starting tunnel door,and attention should be paid to ensuring the sealing performance of the curtain rubber plate at all times during the jacking process;The positioning of the base and guide rail is accurate,and the accuracy of the jacking axis is maintained during the jacking process.The pipe jacking machine and its tightly connected pipe joint are connected as a whole with steel plates,increasing the stability of the starting pipe joint;Strengthen the observation of the jacking axis,implement the principle of frequent measurement and correction,and proceed slowly and gradually to avoid large bending angles of the axis caused by hasty actions.
万方数据
维普
