Underground finite space fertilizer-tank-free structure side wall large steel formwork system and construction method

A limited space, steel formwork technology, applied in underwater structures, infrastructure engineering, formwork/formwork/work frame, etc., can solve problems such as hidden dangers of water seepage to tie bolts, limited planning red line width, etc., to prevent swelling. model, the effect of ensuring accuracy

Inactive Publication Date: 2019-11-08
CHINA MCC17 GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to alleviate the pressure of ground traffic, reduce the scope of relocation of buildings and municipal pipelines in construction-affected areas, reduce the amount of earthwork excavation to save engineering investment, and shorten the construction period, the width of the red line in the planning of urban underground comprehensive pipe corridors is often limited, and even in many cases there is no construction surface, which only meets the section size requirements of the pipe gallery structure. In order to solve such problems, the design usually adopts cast-in-situ pile row pile support as the outer wall membrane form or adopts shallow buried underground excavation. The cast-in-place concrete structure cannot be constructed with the traditional wooden formwork and anti-waterproof bolt reinforcement method, and there is still a hidden danger of water seepage when the anti-tension bolt is used

Method used

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  • Underground finite space fertilizer-tank-free structure side wall large steel formwork system and construction method
  • Underground finite space fertilizer-tank-free structure side wall large steel formwork system and construction method
  • Underground finite space fertilizer-tank-free structure side wall large steel formwork system and construction method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1 to Figure 7 As shown, it includes formwork system for guide wall axillary corners, support system 2, and formwork system for side walls.

[0044] Guide wall corner formwork system includes several guide wall corner formwork units 1 spliced ​​left and right by connecting bolt pairs. Guide wall corner formwork unit 1 includes guide wall unit 11, armpit unit 12 and back flute 13. The bottom of the unit 11 and the top of the corner unit 12 are fixedly connected to form the guide wall corner unit through the connecting bolt pair, and the back flute 13 is welded and fixedly connected to the back side of the corner unit of the guide wall (and the bottom of the back flute 13 is connected to the corner unit 12 slope welded connections).

[0045] The height of the guide wall unit 11 and the axillary corner unit 2 should be processed according to the design structural size, the connection between the various systems of the formwork should be safe and reliable, a...

Embodiment 2

[0052] Such as figure 1 , Figure 4 , Image 6 with Figure 7 As shown, the strength and stiffness of the large steel formwork system should be calculated according to the most unfavorable working conditions according to the characteristics of the material, structural form, and support method. The construction method of the large steel formwork system for the side wall of the structure without fertilizer tank in the limited underground space includes the following main steps:

[0053] A. Assembling the guide wall axillary corner components: assemble the single axillary corner unit 12 and the single guide wall unit 11 on the ground in advance, and assemble the guide wall axillary corner components into a guide wall axillary corner formwork system;

[0054] B. Installation of guide wall axillary corner formwork system: After the bottom plate reinforcement and side wall inserts are installed, according to the edge line and control line of the formwork to be installed on the cu...

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Abstract

The invention discloses an underground finite space fertilizer-tank-free structure side wall large steel formwork system and a construction method, and belongs to the technical field of underground engineering construction. A plurality of guide wall axillary angle formwork monomers are spliced to form a guide wall axillary angle formwork system and a supporting system, and a plurality of side wallformwork monomers are spliced to form a side wall formwork system. Guide wall units and axillary angle units are connected into a whole. Side wall units are connected into a whole through connectingbolt pairs, and then the guide wall axillary angle formwork system is fixed and supported through the supporting system. The perpendicularity of the guide wall axillary angle formwork system and the side wall formwork system is precisely controlled through the stretching length of adjustable-length supporting rods. The forming quality and waterproof effect of an urban underground comprehensive pipe gallery side wall cast-in-place concrete structure are guaranteed, the quality defect and later hidden water seepage danger of the wall cast-in-place concrete structure are eliminated, constructionis efficient, formworks can be reused, and resources are saved.

Description

technical field [0001] The invention belongs to the technical field of underground engineering construction, and in particular relates to a large steel formwork system and a construction method for a side wall of a structure without a fertilizer tank in a limited underground space. Background technique [0002] With the progress and development of society, the level of urbanization continues to increase, the number of cities and urban population continue to increase, and the support of land resources is needed, so it is inevitable to develop urban underground space. At present, the utilization of urban underground space mainly includes urban infrastructure, transportation system, pipeline system, commercial entertainment system, disaster prevention system and equipment system, etc. The development of urban underground space should be based on the approved urban overall planning, zoning planning and detailed planning, and be developed and constructed within the planning red l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/045E04G11/08E04G17/14
CPCE02D29/10E02D2250/0023E04G11/08E04G17/14
Inventor 乔小明孔繁锋
Owner CHINA MCC17 GRP
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