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Construction device, construction system and construction method for hollow pile structure

A technology of pile plate structure and construction device, applied in the field of geotechnical engineering, can solve the problems such as difficult effective dismantling and reuse of formwork and support columns, uneven bulging of bearing plates, affecting track smoothness, etc., so as to achieve convenient reuse and reduce Construction consumables, improve the effect of construction safety

Active Publication Date: 2021-08-03
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to: for the prior art, the bottom formwork and support columns used for pouring the load-bearing slab are difficult to effectively dismantle and reuse the formwork and support columns after the load-bearing slab is poured, and the construction consumables are large, which increases the project investment. The load-bearing plate needs to bear the uplift force transmitted from the support column to the formwork, which may cause uneven uplift of the load-bearing plate and affect the smoothness of the track. A construction device, construction system and construction method for a hollow-out pile-slab structure are provided , after the bearing plate is poured, it can be effectively dismantled and reused, thereby reducing construction consumables, reducing project investment, and avoiding the transmission of the foundation uplift force to the bearing plate

Method used

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  • Construction device, construction system and construction method for hollow pile structure
  • Construction device, construction system and construction method for hollow pile structure
  • Construction device, construction system and construction method for hollow pile structure

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Embodiment 1

[0071] Such as Figure 1-7 As shown, a construction device for a void-type pile-slab structure described in this embodiment includes a base 11, a jack 12, a truss-type load-bearing beam 3, an L-shaped steel formwork 21, a plane steel formwork 22, and a U-shaped block plate 23. The base 11 is poured with concrete and placed in the cutting foundation 5; the jack 12 and the truss-type load-carrying beam 3 are sequentially arranged on the base 11 from bottom to top; the L-shaped steel formwork 21 and the plane steel formwork 22 are vertically erected along the line On the truss load beam 3 ; the U-shaped baffle 23 is placed on the joist 42 .

[0072] The truss-type load-bearing beam 3 is made of segmental assembled rigid structure, and the length of each segmental rigid truss is not greater than the distance from the edges on both sides of the load-bearing plate 43 to the toe of the cutting slope. The function of the truss-type load-bearing beam 3 is to carry the L-shaped steel ...

Embodiment 2

[0078] Such as Figure 1-7 As shown, a construction device for a hollow pile-slab structure described in this embodiment differs from Embodiment 1 in that it includes a construction formwork 2 for pouring a bearing plate 43, and at least two truss-type The load-carrying beam 3 is arranged at the bottom of the construction formwork 2 for stably supporting the construction formwork 2. The construction formwork 2 is a box-shaped member with an open top, and the construction formwork 2 is set as a L-shaped steel formwork 21. The structural member spliced ​​by plane steel formwork 22 and U-shaped baffle 23, after the loading plate 43 is poured, the construction formwork 2 can be split into L-shaped steel formwork 21, plane steel formwork 22 and U-shaped baffle 23, so that the effective dismantling of the construction formwork 2 can be realized very simply, and the situation that the foundation uplift works and transmits the load-bearing plate 43 through the construction formwork 2 ...

Embodiment 3

[0090] Such as Figure 8-10 As shown, a construction system described in this embodiment includes a foundation 5 and the construction device as described in Embodiment 1 or 2, the base 11 is a structural member formed by pouring concrete, and the base 11 is arranged on In the foundation 5 , all the truss-type load-bearing beams 3 are longitudinally spaced along the line, and the U-shaped baffles 23 are placed on the joists 42 .

[0091] During installation, since the bearing plate 43 extends longitudinally along the line, all the truss-type load-bearing beams 3 are distributed longitudinally along the line to facilitate better disassembly in the later stage. Good strength, avoiding the settlement of the base 11 during the jacking process of the jack 12, causing the truss-type load-bearing beam 3 to tilt and slide. The U-shaped baffle 23 is placed on the joist 42, relying on the joist that has been made 42 to support and position the U-shaped baffle 23, so as to ensure the pre...

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Abstract

The invention relates to the technical field of geotechnical engineering, in particular to a construction device, a construction system and a construction method for a void-type pile-slab structure, including a construction formwork for pouring a load-bearing slab, and at least two truss-type bearing plates are arranged at the bottom of the construction formwork Beam, the bottom of both ends of the truss-type load-bearing beam are respectively equipped with jacking devices, which are used to lift the corresponding truss-type load-bearing beam. The construction formwork includes L-shaped steel formwork, plane steel formwork and U-shaped baffle, and plane steel formwork The L-shaped steel formwork is detachably connected, and the flat steel formwork is detachably connected with a U-shaped baffle. A construction device for a hollow-out pile-slab structure of the present invention can be effectively dismantled and reused after the bearing slab is poured, thereby reducing construction consumables and project investment, and avoiding the transmission of foundation uplift force to the bearing slab .

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to a construction device, a construction system and a construction method for a hollow pile-slab structure. Background technique [0002] The uplift deformation of rock and soil foundations is a key problem to be solved in many projects nowadays. In the field of high-speed ballastless railways, frost heaving of permafrost, expansive rock (soil) expansion, red bed soft rock arching, saline soil (rock) salt Arching of the foundation caused by swelling and other factors is a new type of problem for railway builders. Due to the extremely strict requirements on the deformation control of high-speed ballastless railways, once the deformation of the foundation uplift exceeds the limit, it is easy to cause cracks in the ballastless track slabs of high-speed railways, causing major ballastless track defects, affecting the stability and comfort of train operation, and causing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B1/00E01B2/00E01B37/00
CPCE01B1/002E01B2/00E01B37/00
Inventor 陈伟志蒋关鲁胡会星孙晓郭在旭
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
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