Novel diversion drainage structure of post-cast strip and construction method of novel diversion drainage structure of post-cast strip

Abstract

The invention provides a novel diversion drainage structure of a post-cast strip and a construction method of the novel diversion drainage structure of the post-cast strip and belongs to the field of diversion drainage, aiming to overcome huge potential safety hazards due to the fact that an existing conventional post-cast strip structure develops into a structural crack after eroded by underground water, and the crack can expand gradually as time passes to lead to water seepage and even steel bar fracture, basement arching and elevation or displacement of an independent foundation of a bearing platform finally. The construction method includes that the middle plane of every water-stop steel plate is machined to form an 'omega' shape, the space of every 'omega' shape is filled with medium sand wrapped by geotechnical cloth, the outer surface of the geotechnical cloth is coated with cement paste, fast-ribbed formworks and the water-stop steel plates are fixedly bottomed through spot welding every other 500 mm, and the fast-ribbed formworks on the inner sides of every two adjacent water-stop steel plates are in butt joint sequentially.

Description

technical field [0001] The invention relates to a novel drainage and drainage structure of a post-cast belt, which belongs to the field of construction drainage. Background technique [0002] At present, in conventional site construction, considering the harmful cracks that may be caused by cast-in-place concrete due to uneven temperature and shrinkage, temporary construction joints should be left at the corresponding positions of the foundation floor, walls, and beams. After the internal shrinkage of the components, after a certain period of time Then pour and pound the construction joint concrete to connect the structure into a whole. The construction joint is the post-cast belt. Since the post-cast belt is not poured at the same time as the main structure, and the concrete stress on the post-cast belt area is relatively large in the original structure design, it results in the weakest part of the bottom slab or floor. The traditional method of backfilling the post-cast b...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of drainage and drainage structure of post-cast belt and its construction method to solve the problem that the existing conventional post-cast belt structure will develop into structural cracks after being eroded by groundwater for a long time, and the cracks will gradually expand over time , water seepage occurs, and even leads to the breakage of steel bars, arching in the basement, and finally causes the elevation or displacement of the independent foundation of the cap to change, which poses a huge safety hazard

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