Diversion blasting construction method of intertidal zone blasting displacement bank

Abstract

The invention relates to a diversion blasting construction method of an intertidal zone blasting displacement bank. The method comprises the following steps: (1) dumping filling a bank body according to a design and construction scheme; (2) calculating for blasting operation design; (3) reserving a silt pack bulged on the head end of the bank, and utilizing the silt pack as one part of an upper overburden load; (4) extracting and guiding water on the periphery of the silt pack into a V-shaped channel; (5) embedding explosive, and detonating; (6) continuously throwing stones, and stopping the throwing of stones in a sliding manner after reaching the balance; (7) throwing filling stones of the needed quantity for the next blasting operation on the bank end, continuously throwing filling stones behind the bank end until the structural balance of the bank body reaches the designed standard height, and arranging a slope by utilizing a construction machine; (8) preparing the next blasting, and thus cycling. By adopting the method, the construction progress of the intertidal zone blasting displacement bank can be accelerated, the engineering cost is reduced, the blasting and displacement bottoming effect is good, the construction process is simple, the tidal establishment operation is not needed, the explosive is more convenient to bury, the construction process has an important significance on guaranteeing the construction quality and accelerating the construction process, and the popularization value is remarkable.

Description

technical field [0001] The invention belongs to the technical field of coastal riprap embankment construction, and in particular relates to a new construction method for blasting and squeezing silt embankments in the intertidal zone in coastal areas, which improves the conventional blasting and silt squeezing construction and removes the silt bag at the head end of the embankment before blasting to ensure the initiation of blasting. When the embankment head has a certain water depth technical requirement, by retaining the silt bag at the end of the embankment head, diverting water into the V-shaped groove between the embankment head and the silt bag to a sufficient depth, increasing the resistance line in the local upward direction, and ensuring that the explosion energy along the embankment head When the head of the embankment acts forward, the riprap at the head of the embankment, under the condition of sufficient water and a certain amount of mud, will sink and slide towards...

AI Technical Summary

Problems solved by technology

Limited by the length of the arm of the excavator, it is too difficult to excavate the silt bag on land; and affected by the depth of the water, it is difficult for the water construction ship to approach the silt bag, and the operation time is very short at high tide, and it interferes with the blasting construction; The amphibious excavator digs up the silt bag, the cost is too high, and there is interference with the riprap construction

Images