Large-scale bolt high-precision pre-burying construction method
A construction method and high-precision technology, which is applied in infrastructure engineering, construction, etc., can solve the problems that the pre-embedded precision cannot meet the design requirements, the construction period is difficult to be guaranteed, and the equipment cannot be used normally, so as to achieve positioning adjustment and reinforcement effects Good, convenient processing and layout, simple structure
Active Publication Date: 2015-03-04
陕西建工第十一建设集团有限公司
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Problems solved by technology
The above pre-embedded precision requirements are all higher than the standard requirements, so the construction is difficult
In actual construction, if the pre-embedded precision of large bolts does not meet the design requirements, it will affect the operation of the equipment, and even cause the equipment to fail to work normally.
At the same time, in the actual construction process, multiple repairs need to be carried out, and the cost of repairs is relatively large, and the construction period is difficult to guarantee
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[0061] Such as figure 1 In the high-precision pre-embedded construction method for large-scale bolts shown, the number of pre-embedded large-scale bolts 1 is N, and the N large-scale bolts 1 are all buried in the foundation of the construction equipment, and the foundation of the construction equipment is a concrete foundation. where N is a positive integer and N≥1; figure 2 , the structure and size of the N large-scale bolts 1 are all the same, and the embedding depths of the N large-scale bolts 1 are all the same. The base, the base and the screw are arranged coaxially, the large bolt 1 is arranged perpendicular to the foundation of the construction equipment, the diameter of the screw is d1 and its height is h1, where 150mm≤d1≤500mm, 1200mm ≤h1≤2200mm; the construction equipment foundation includes the lower foundation cushion and the upper equipment foundation above the lower foundation cushion, and the N large bolts 1 are buried in the upper equipment foundation, and th...
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The invention discloses a large-scale bolt high-precision pre-burying construction method. The number of pre-buried large-scale bolts is N, all the large-scale bolts are pre-buried in a construction device foundation, the large-scale bolts comprise screw rods and bases, external threads are arranged at the top ends of the screw rods, the bases are arranged on the bottom portions of the screw rods, and the device foundation is divided into a lower foundation cushion layer and an upper device foundation with the plane where the bottom portions of the bases of the large-scale bolts are located as a boundary. The method comprises a first step of carrying out concrete pouring construction on the lower foundation cushion layer, a second step of carrying out measurement and paying off, a third step of mounting a bolt locating control rack, a fourth step of mounting a bolt reinforcing support, a fifth step of tensioning a locating steel wire net, a sixth step of mounting the large-scale bolts, a seventh step of removing the bolt locating control rack and the locating steel wire net, and an eighth step of carrying out concrete pouring construction on the upper device foundation. The method is simple in process, reasonable in design, convenient to achieve, good in using effect, and capable of simply, conveniently and fast achieving the high-precision pre-burying process of the large-scale bolts in the device foundation in high quality.
Description
technical field [0001] The invention belongs to the technical field of pre-embedded construction of large bolts, and in particular relates to a high-precision pre-embedded construction method of large bolts. Background technique [0002] In the process of industrial building construction, the construction requirements for the equipment foundation are getting higher and higher, and the embedded bolts in the equipment foundation continue to develop towards the trend of large single body and high pre-embedded precision (exceeding the precision required by the specification), so the large bolts are high The precision pre-embedding construction is very difficult, and the pre-embedding construction efficiency is low, and the construction period cannot be guaranteed. It needs to consume a lot of labor and machinery costs, and the investment cost is relatively high. At the same time, the pre-embedding accuracy of large bolts is not easy to guarantee. For example, when 8 large-scale ...
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IPC IPC(8): E02D27/44
Inventor 徐涛黄永根樊进李省安邢建军解崇晖王纾房桂梅张愿锋周其胜
Owner 陕西建工第十一建设集团有限公司