| 摘要 |
A water intake method of a collecting well is provided to perform the work conveniently and to reduce the damage of materials to the minimum. The water intake method of a collecting well comprises the steps of installing a collecting well under the ground, excavating a water-intake hole by installing excavation equipment to the inside of an outer pipe and approaching the outer pipe and the excavation equipment laterally from the side wall of the collecting well, leaving behind the outer pipe inserted to the water-intake hole and removing the excavation equipment only, inserting a sealing member(100) to seal up the front opening of the outer pipe to prevent a large quantity of soil and water from flowing in the outer pipe through the front opening of the outer pipe, inserting a perforated pipe to the inside of the outer pipe, installing a hydrostatic pressure maintenance packing to seal up the rear opening of the perforated pipe and the space between the perforated pipe and the outer pipe, removing the outer pipe and injecting air to the inside of the perforated pipe to exhaust air toward the outer soil of the perforated pipe. |
