Pressing-pushing installation method of fabricated concrete prefabricated automobile box-type channel
An installation method and concrete technology, which can be applied in protection devices, water conservancy projects, artificial islands, etc., can solve problems such as staggering, disconnection, and loose connection of box sections, so as to improve the overall bearing capacity, solve the problem of water accumulation, The effect of tight connection
Active Publication Date: 2018-10-16
NANTONG ROAD & BRIDGE ENG CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a push-push installation method for prefabricated concrete prefabricated car trunks, which solves the problem that in the prior art, the adjacent prefabricated trunk sections are not tightly connected, which easily leads to the occurrence of staggered stations between the trunk sections. Problems of disconnection and water seepage
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[0050] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0051] A method for pushing and installing a prefabricated prefabricated concrete car box, comprising steps:
[0052] S1. Clean up the debris on the surface and perform preliminary leveling, and then determine the outer control line of the excavation surface and the central axis of the passage according to the excavation depth and excavation slope.
[0053] S2. The channel base adopts one-way cement-soil mixing piles for soft foundation treatment. After the construction of one-way cement-soil mixing piles is completed and passed the inspection, the foundation pit can be excavated.
[0054] S3, refer to figure 1 , first lay the foundation cushion 2 composed of 30cm gravel and 20cm concrete, and no grading treatment is required during construction, so that the flatness of the surface is controlled within the range of 5mm, so as to ensure that the joints of the...
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The invention discloses a pressing-pushing installation method of a fabricated concrete prefabricated automobile box-type channel, and relates to the technical field of road and bridge engineering. The pressing-pushing installation method aims to solve the problems that adjacent fabricated box-type channel segments are not tightly connected in the prior art and are prone to causing slab staggering, disconnection and water seepage among the box-type channel segments. According to the technical key points, the pressing-pushing installation method comprises the steps that S1, site cleaning and surveying setting out are carried out; S2, a foundation pit is excavated; S3, a foundation pad is constructed; S4, box-type channel transportation and turnover are carried out; S5, leveling treatment iscarried out; S6, the segments are installed, that is, the box-type channel segments are hung and placed on a tetrafluoro slide plate, connecting openings of the two box-type channel segments are aligned during installation, and pressing-pushing and adjusting are carried out by two center hole jacks symmetrically arranged at the bottoms of the box-type channel segments to enable the central axis and side lines of the box-type channel segments to be aligned with the central axis and side lines which are released from the top surface of a channel foundation correspondingly; S7, tension and connection are carried out; S8, grouting is carried out; and S9, waterproof treatment is carried out so as to achieve the overall fabricate consistency of the whole automobile box-type channel.
Description
technical field [0001] The invention relates to the technical field of road and bridge engineering, in particular to a push installation method for an assembled concrete prefabricated automobile box pass. Background technique [0002] The construction of highway traffic engineering is facing upgrading and transformation, and industrialization and standardized construction are the inevitable trend of future industry development. Compared with the traditional pouring-in-place construction technology, prefabricated concrete culverts (channels) have the advantages of short on-site construction period, easy construction quality assurance, and good durability. With the standardized development of prefabricated preparation, on-site installation and construction technology, prefabricated culverts have broad application prospects and good social and economic benefits. [0003] At present, the commonly used connection method between the prefabricated culvert (passage) segments is gen...
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IPC IPC(8): E01F5/00E02D29/16E02D31/02
CPCE01F5/005E02D29/16E02D31/02
Inventor 丁世明顾华唐兴无吴小春徐小继
Owner NANTONG ROAD & BRIDGE ENG CO LTD
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