Novel die bag water filtering hole sewing machining and constructing method

Abstract

The invention discloses a novel die bag water filtering hole sewing machining and constructing method. After die bag cloth is discharged and primarily sewn, holes are formed in the fixed positions in a burning manner to serve as water filtering holes, pipe protection cloth matched with the holes in diameter is prefabricated, the upper holes and the lower holes of a die bag are connected through the pipe protection cloth through the overseam technology, the water filtering holes with the pipe protection cloth are formed, and water filtering pipes are then inserted in the pipe protection cloth of the die bag water filtering holes. The water filtering pipes are isolated from concrete through the pipe protection cloth, and the phenomenon that water filtering pipes slide down along with ash during concrete filling is effectively avoided; and meanwhile, the thickness of the die bag concrete at the water filtering hole parts is guaranteed, and the too large thickness deviation at the water filtering hole parts is greatly reduced. Due to the fact that the overseam technology is adopted in the pipe protection cloth, an upper-layer die bag body and a lower-layer die bag body, the hole forming size is uniform, and the die bag concrete appearance quality is greatly improved. Meanwhile, the reasonable concrete flushing and filling sequence is adopted, longer time can be reserved for filtering out of laitance in concrete while the construction efficiency is not influenced, and the die bag filling thickness is guaranteed.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a novel mold bag water filter hole sewing processing and construction method. Background technique [0002] Mold bag concrete is a cast-in-place concrete technology. It uses geotextile mold bags as carriers, and pours concrete into the mold bags through concrete pumps to form them. role. It has the advantages of good integrity, good durability, strong terrain adaptability, fast construction speed, labor and time saving, and can be used for irrigation under water. [0003] However, under the action of sea waves in the existing protective bank protection mold bag concrete, the pore pressure of the mold bag is relatively large, which is easy to cause slope instability. Simply open the water filter hole during the bag processing. When the concrete is filled, insert the water filter pipe into the water filter hole of the mold bag and fasten the position of the hole. This constru...

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Problems solved by technology

[0003] However, under the action of sea waves, the existing protective bank protection mold bag concrete produces a relatively large pore pressure of the mold bag, which is likely to cause slope instability. Simply open the water filter hole during the bag processing process. When the concrete is filled, insert the water filter pipe into the water filter hole of the mold bag and fasten the position of the hole. This construction method has the disadvantage that the PVC pipe is prone to displacement with the concrete filling Disadvantages such as slippage, uneven filling thickness of mold bag concrete at the water filter hole, large deviation, and poor appearance quality

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