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Prefabrication assembly type box culvert prefabrication turnover device and installation method

A prefabricated assembly, box culvert technology, applied in manufacturing tools, auxiliary molding equipment, road bottom and other directions, can solve the problems of structure being easily restricted by the shape of components, prone to safety accidents, low versatility, etc., to reduce the probability of damage, Strong operability and economical effect

Active Publication Date: 2019-12-03
CCCC SECOND HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are also some new attempts in the prior art. For example, the Chinese patent document CN206580456U describes a box culvert turning device for shield tunnels, which adopts a method similar to that of a manipulator for turning over. The structure of this scheme is relatively complicated and easy. Limited by the shape of the component, the versatility is not high
Chinese patent document CN207566745U describes a turning device for turning over prefabricated pier columns, which adopts the scheme of rotating shaft support, but in this scheme, the lifting device is still required to cooperate with turning over during the turning process, which is inconvenient to operate and still prone to safety accidents risks of
However, because the device needs to be constructed in a pit structure, it can only be applied to a fixed construction location, and it is inconvenient to move, and the pit structure needs to be made of rainproof and water-retaining devices to avoid water accumulation

Method used

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  • Prefabrication assembly type box culvert prefabrication turnover device and installation method
  • Prefabrication assembly type box culvert prefabrication turnover device and installation method
  • Prefabrication assembly type box culvert prefabrication turnover device and installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as Figure 1~5 Among them, a prefabricated assembled box culvert prefabricated turning device, which includes a mobile platform 2, a turning platform 1 and a blocking column 3;

[0061] Such as Figure 4 As shown in , the turning platform 1 is in an "L" shape, and the turning point of the turning platform 1 is connected with the mobile platform 2 through the rotating seat 101, and the turning platform 1 is turned with the rotating shaft of the turning seat 101 as the center of the circle;

[0062] Such as Figure 1~3 Among them, the bottom surface of at least one side of the mobile platform 2 is fixed with a blocking column 3, and the blocking column 3 contacts the turning platform 1 through the set blocking wheel 37, and when the moving platform 2 moves, the turning platform 1 is driven by the blocking wheel 37 Flip. From this structure, such as Figure 2~4 As shown in , by driving the movement of the mobile platform 2 and limiting the position of the blocking...

Embodiment 2

[0076] On the basis of Example 1, such as Figure 7 As shown in , an installation method using the above-mentioned prefabricated box culvert prefabricated turn-over device includes the following steps:

[0077] S1, foundation treatment, testing and stakeout;

[0078] Specifically include: construction preparation, foundation pit excavation, foundation leveling treatment, foundation pit bearing capacity test, laying gravel cushion 30, and using total station to test and stake out the entire foundation pit;

[0079] S2, arrange concrete block 8; figure 2 , 3 As shown in , a self-compacting concrete cushion 9 is laid around the concrete pad 8 to prevent the uneven settlement of the components of the prefabricated box culvert 5; the concrete pad 8 is located at the bottom of both ends of the prefabricated box culvert 5. Span between two prefabricated box culverts 5 to ensure that the elevation between the two prefabricated box culverts 5 is consistent.

[0080] S3, making 5 c...

Embodiment 3

[0089] On the basis of Example 2, in a preferred solution, step S3 also includes the following steps:

[0090] S31. Set up the turning platform 1; the structure of the turning platform 1 is as follows Figure 1~5 shown in ; used to realize the 90° flip of the prefabricated box culvert 5.

[0091] S32. Set up a formwork on the turning platform 1; the set up formwork is in the shape of a "back", and the inner mold and the outer mold are positioned by tie screws.

[0092] S33. Hoist the reinforcement cage in the formwork; it must be fixed and reliable during the hoisting process to prevent the deformation of the reinforcement cage during the hoisting process and affect the quality of the finished product.

[0093] S34, pouring concrete, and vibrating and compacting;

[0094] S35, mold removal and maintenance, preferably using a steam shed for maintenance;

[0095] S36. After the maintenance meets the strength requirements, the prefabricated box culvert 5 is turned over 90°;

[...

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Abstract

The invention provides a prefabrication assembly type box culvert prefabrication turnover device and an installation method. The prefabrication assembly type box culvert prefabrication turnover devicecomprises a movable platform, a turnover platform and blocking stand columns, wherein the turnover platform is in an L shape, the turning part of the turnover platform is connected with the movable platform through a rotating seat, the turnover platform is turned over by taking a rotating shaft of the rotating seat as the circle center, the blocking stand columns are fixedly arranged on the bottom surface of at least one side of the movable platform, the blocking stand columns are in contact with the turnover platform through arranged blocking wheels, and when the movable platform moves, theblocking wheels drive the turnover platform to be turned over. In the use process, prefabrication box culvert components are manufactured; the turnover platform is erected; a form is erected on the turnover platform; a reinforcement cage is hoisted in the form; concrete is poured; mold dismounting and maintenance are carried out; and the components are turned over by 90 degrees, and therefore, theusing frequency of hoisting equipment is reduced in the prefabrication installation process of box culverts, the damage probability of the box culverts is reduced, moreover, a pit structure is not required to be arranged on site, and then the movement along with the engineering construction position is also facilitated.

Description

technical field [0001] The invention relates to the construction field of an assembled box culvert, in particular to a prefabricated turning device and an installation method for a prefabricated assembled box culvert. Background technique [0002] During the road construction process, the prefabrication and installation process of the prefabricated box culvert is complicated. During the construction process, a large number of large-scale lifting equipment such as gantry cranes are required. The cost and the probability of accidents also have a certain impact on the quality of the box culvert components, especially in the process of turning over the box culvert. The prefabrication of the box culvert is completed. During the installation process, the requirements for the elevation and flatness of the concrete cushion are extremely high. Once there is a problem with the elevation of the concrete cushion, the installation position of the prefabricated box culvert will change, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01F5/00B28B1/14B28B7/00B28B17/00
CPCB28B1/14B28B7/0032B28B17/00E01F5/005
Inventor 黄跃娄勇霍胜李继强徐旭锋丁霖蒋恩华周涛张英哲杜晓峰乔明华应俊烽
Owner CCCC SECOND HARBOR ENG
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