Construction method for vertical post pouring belt plugging of underground structural outer wall
A construction method and technology for underground structures, which are applied to underwater structures, infrastructure engineering, artificial islands, etc., can solve the problems of high cost and long construction period of post-casting belts of underground structures.
Inactive Publication Date: 2013-11-27
TIANJIN 20 CONSTR
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Problems solved by technology
[0006] The present invention aims to solve the technical problems of long construction period and high cost of post-cast belts in underground structures at present, and provides a construction method for sealing vertical post-cast belts on exterior walls of underground structures, without the need to meet the requirements of post-cast belts after the time is reached. The pouring has created strong conditions for completing the construction tasks ahead of schedule
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[0024] Below, the present invention will be further described in detail by taking the basement construction of a civil construction project as an example. The following examples can enable those skilled in the art to understand the present invention more comprehensively, but do not limit the present invention in any way.
[0025] Such as figure 1 As shown, the construction process of a basement in a civil construction project is as follows: cushion construction→base plate reinforcement binding→base plate formwork installation→base plate concrete pouring→wall reinforcement binding→wall formwork installation→wall concrete pouring→making concrete prefabricated cover 2→vertical Install the concrete prefabricated cover plate 2 on the outer side of the post-casting belt 1 → do waterproofing → backfill soil → pour the vertical post-casting belt 1 of the outer wall after meeting the conditions.
[0026] (1) Before the construction of the cushion layer, pull the long line at the mortar...
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The invention discloses a construction method for vertical post pouring belt plugging of an underground structural outer wall. The construction method for the vertical post pouring belt plugging of the underground structural outer wall comprises sequentially arranging concrete prefabricated cover plates on the external sides of vertical post pouring belts of the outer wall and plugging the gap between the upper concrete prefabricated cover plate and the lower concrete prefabricated cover plate through waterproof mortar; enabling a back pulling rebar which is reserved on every concrete prefabricated cover plate to be fixedly connected with a vertical rebar which is arranged on the internal side of every vertical post pouring belt of the outer wall; plastering a connecting position between every concrete prefabricated cover plate and the outer wall to be in an oblique angle of 45 degrees and leveling through the waterproof mortar; backfilling underground structural earthwork; holding internal side templates of the vertical post pouring belts of the outer wall when the vertical post pouring belts of the outer wall achieve a pouring condition; pouring concrete on the post pouring belts from the top of the vertical post pouring belts. The construction method for the vertical post pouring belt plugging of the underground structural outer wall can effectively satisfy a standard requirement that the post pouring belts are constructed when age of the concrete on two sides of the post pouring belts achieves 60 days, can guarantee that a next procedure can be constructed without waiting for the post pouring belts finishing pouring and plays an important role in finishing ahead of the construction period.
Description
technical field [0001] The invention relates to a construction method of a post-cast strip of an underground structure, in particular to a construction method of a vertical post-cast strip of an outer wall in an underground structure project. Background technique [0002] At present, in the construction of industrial and civil buildings, the post-construction method of pouring strips is often used in the design of reinforced concrete structures to solve the temperature shrinkage cracks of super-long concrete and the uneven settlement of buildings. The post-casting belt is to prevent harmful cracks that may occur in the cast-in-place reinforced concrete structure due to uneven temperature and shrinkage. According to the requirements of the design or construction specifications, temporary construction joints are left at the corresponding positions of the slabs, walls, and beams, and the structure is temporarily divided into several parts. part, after the internal shrinkage of ...
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IPC IPC(8): E02D29/16
Inventor 马全丽武佳斌孙超王先飞李仔仪张岩韩秀军陈文海宋淑婷蔡芳霆何柳孙英雷王宝朝高原秦翀
Owner TIANJIN 20 CONSTR