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Fabricated concrete box culvert structure and construction method thereof

A construction method and concrete technology, which is applied in the direction of basic structure engineering, underwater structures, artificial islands, etc., can solve the problems of heavy weight and difficult hoisting, and achieve the effect of reducing the difficulty of hoisting and high precision

Inactive Publication Date: 2019-12-03
深圳金瑞建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the box culvert section is a whole, and the overall weight of a single box culvert section is relatively large in the actual hoisting process, which makes hoisting difficult, so it needs to be improved

Method used

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  • Fabricated concrete box culvert structure and construction method thereof
  • Fabricated concrete box culvert structure and construction method thereof
  • Fabricated concrete box culvert structure and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A prefabricated concrete box culvert structure, refer to figure 1 , which includes several box culvert segments 1 connected in sequence, each of which includes a symmetrically arranged upper segment 11 and a lower segment 12, and the upper segment 11 is located above the lower segment 12. A base plate 14 arranged horizontally is arranged below the several lower segments 12 .

[0048] refer to figure 2 , the top wall at both ends of the lower section 12 is integrally formed with inserting blocks 13 , and the bottom wall at both ends of the upper section 11 is provided with slots 130 for the inserting blocks 13 to fit and insert.

[0049] refer to image 3 , between adjacent upper segments 11 , between adjacent lower segments 12 , and between opposite upper segments 11 and lower segments 12 are all connected by connecting components 2 . The connection assembly 2 includes a twisted wire 21 and a pair of anchors 22. Several pairs of Anchor holes 20, a preset hole 210 i...

Embodiment 2

[0052] A method for constructing a prefabricated concrete box culvert, comprising the following steps:

[0053] S1. Construction preparation: refer to Figure 4 , according to the design drawings to measure and set out, sprinkle out the excavation sidelines of the foundation pit 3 with lime, to accurately determine the plane position of the culvert.

[0054] S2. Box culvert foundation excavation: refer to Figure 4 Before foundation pit 3 is excavated, cut-off ditch 31 is set around the top opening of foundation pit 3 to prevent ground water from flowing into foundation pit 3. Widen 50cm around the excavation sideline of foundation pit 3 as the construction work space, use manual excavation with excavator, and use manual bottom cleaning when the excavation is about 10cm away from the design elevation. After the foundation pit 3 is excavated to the related elevation, a drainage ditch 32 and a water well 33 are provided around the bottom of the foundation pit 3 to drain away t...

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Abstract

The invention discloses a fabricated concrete box culvert structure and a construction method thereof, and relates to the technical field of box culvert construction. The fabricated concrete box culvert structure and the construction method thereof aim at solving the technical problem that the hoisting difficulty of a single box culvert segment is high. According to the technical scheme, each boxculvert segment comprises an upper segment body and a lower segment body which are symmetrically arranged, the upper segment bodies are located above the lower segment bodies, inserting blocks are arranged on the top walls of the two ends of the lower segment bodies, inserting grooves which are matched with the inserting blocks and allow the inserting blocks to be inserted therein are formed in the bottom walls of the two ends of the upper segment bodies, the adjacent upper segment bodies, the adjacent lower segment bodies and the opposite upper segment bodies and lower segment bodies are connected through connecting assemblies, and a horizontally-arranged base plate is arranged below the multiple lower segment bodies. The independent weights of the upper segment bodies and the lower segment bodies are small, so that the positions of the upper segment bodies and the lower segment bodies are more conveniently adjusted through human assistance in the hoisting process, the precision can be higher during following mounting, the bottom walls of the multiple box culvert segments can be more stably located on the same plane through the base plate, and higher smoothness is achieved compared with the manner that the box culvert segments are directly put on the ground.

Description

technical field [0001] The invention relates to the technical field of box culvert construction, more specifically, it relates to an assembled concrete box culvert structure and a construction method thereof. Background technique [0002] Concrete box culvert is a culvert built with reinforced concrete box-shaped pipe joints. [0003] The existing Chinese patent with publication number CN110029599A provides a prefabricated culvert steel connection structure, which includes successively connected box culvert segments, each box culvert segment includes a reinforced concrete structure and a steel plate interface, and the steel plate interface has a The bonding plate covering the end face of the reinforced concrete structure and the hoarding plate used to wrap the end of the reinforced concrete structure in the circumferential direction; the bonding plate and / or the hoarding plate are provided with several raised structures, and the raised structures are embedded The steel plat...

Claims

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Application Information

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IPC IPC(8): E01F5/00E02D29/16E02D31/02E02D19/00E02D19/08
CPCE01F5/005E02D19/00E02D19/08E02D29/16E02D31/02
Inventor 王义明孟力主黄俊鑫张镜清黄菊芬刘丽萍黄伟亮
Owner 深圳金瑞建设集团有限公司
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