Construction method for pipe jacking connection in current well

Abstract

The invention relates to a construction method for pipe jacking connection in a current well. The construction method is characterized in that an upstream drainage pipe is inserted into an existing current pipeline connected with an upstream well, and a downstream drainage pipe is inserted into an existing current pipeline connected with a downstream well; a dilatation drainage tank is arranged in the current well, and the upstream drainage pipe and the downstream drainage pipe are connected with the dilatation drainage tank; sewage in the current well is discharged, and sludge in the current well is cleared until a water-free operation environment is formed in the current well; and pipe jacking construction relative to the current well is carried out at the set position, and pipe jacking connection in the current well is completed. According to the construction method for pipe jacking connection in the current well, the water-free operation environment can be provided for construction of new pipe jacking connection in the current well, so that the construction is convenient; in the construction process, water does not need to be cut off, and normal use of the current well is not influenced; and due to the good construction environment, the construction period can be effectively shortened, and the construction cost is greatly reduced.

Description

technical field [0001] The invention relates to a construction method for pipe jacking in a well at present. Background technique [0002] Pipe jacking technology is a non-excavation pipe laying construction technology used in municipal construction. Its advantages are that it does not affect the surrounding environment or has little impact, the construction site is small, the noise is low, and it can work deep underground. Tube incomparable advantages. [0003] With the continuous acceleration of the urban modernization process, we often encounter the problem of reconstruction and expansion of urban drainage pipe network. Pipeline connection in old wells may involve underwater construction, well wall removal, etc. It has always been a difficult and dangerous task in drainage engineering. Considering the status quo, the old well has been in use for many years, with serious siltation, and the water level in the well is high all the year round. In addition, due to the need ...

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Problems solved by technology

In addition, due to the need for drainage in the urban pipe network, for the dry pipe wells involved in drainage, it is common for old wells to be connected to the construction period that the water cannot be cut off for a long time, which greatly increases the technical difficulty of construction.

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