Detachable rolling sinking type open caisson structure and construction process

A construction technique and caisson technology, which is applied in infrastructure engineering, caissons, buildings, etc., can solve problems such as unbalanced ballast, increased construction risk, and occupation of construction space on site, so as to reduce side resistance, reduce construction risk, The effect of reducing the construction space

Pending Publication Date: 2021-12-24
JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires a large amount of ballast materials to be stacked on site, which not only occupies a large amount of construction space on site, but also increases construction risks by arranging hoisting equipment on site
In addition, depending on the construction level of the construction unit, the caisson often tilts due to unbalanced ballast, which is extremely unfavorable to the construction control of the caisson

Method used

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  • Detachable rolling sinking type open caisson structure and construction process
  • Detachable rolling sinking type open caisson structure and construction process
  • Detachable rolling sinking type open caisson structure and construction process

Examples

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Effect test

Embodiment 1

[0031] This embodiment provides a detachable rolling sinking caisson structure, such as figure 1 As shown, it includes the caisson and rolling device. The caisson is poured from the upper caisson section 1 and the lower caisson section 2. The rolling device is set outside the caisson and is detachably connected with the lower caisson section 2. , The side resistance is greatly reduced when the caisson sinks through the rolling device.

[0032] Further, multiple groups of rolling devices are evenly spaced along the circumference of the caisson, and each group of rolling devices includes at least two vertical plates 3 that are attached to the outer wall of the caisson. When the cross section of the caisson is rectangular, each side of the caisson is The rolling device is installed, and the vertical plate 3 is a rectangular plate; when the cross section of the caisson is circular, the cross section of the vertical plate 3 is arc-shaped.

[0033] Preferably, the rolling device in...

Embodiment 2

[0046] This embodiment provides a construction process for a detachable rolling sinking caisson structure. For the caisson structure described in Embodiment 1, the following steps are included:

[0047] Step 1: According to the actual situation of the project and stratum parameters, calculate the section height of caisson divided into upper caisson section 1 and lower caisson section 2.

[0048] Step 2: According to the length and width of the caisson and the calculated section height, prepare the parts of the rolling device, and after drilling holes in the vertical plate 3 and the connecting plate 5, weld and fix them; fix the bearing in the connecting plate 5.

[0049] Step 3: Make the lower caisson section 2 on site, reserve installation holes when binding the steel bars of the lower caisson section 2, take protective measures to prevent the installation holes from being blocked, pour concrete in the lower caisson section and wait for the concrete strength to reach the desig...

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Abstract

The invention discloses a detachable rolling sinking type open caisson structure and a process method, and belongs to the technical field of open caisson engineering. According to the technical scheme, the detachable rolling sinking type open caisson structure comprises an open caisson formed by pouring an upper open caisson section and a lower open caisson section, wherein a plurality of rolling devices detachably connected with the open caisson are arranged in the circumferential direction of the open caisson at intervals, each rolling device comprises at least two vertical plates attached to the outer wall of the open caisson, and a plurality of rotating rollers which are parallel to one another and distributed on the outer side of the lower open caisson section are connected between the adjacent vertical plates. According to the detachable rolling sinking type open caisson structure and the process method, the detachable rolling devices are arranged on the outer side wall of the lower open caisson section, so that the side resistance in the whole open caisson sinking process is reduced; and the pot-shaped excavation mode is matched, so that the speed of the open caisson during initial sinking is prevented from being too high, and the controllability of construction is improved.

Description

technical field [0001] The invention relates to the technical field of caisson engineering, in particular to a detachable rolling sinking type caisson structure and construction technology. Background technique [0002] As an easy-to-construction and high-safety underground structure construction method, caisson technology is widely used in various places. With the increase of engineering applications, the problems encountered are gradually increasing. One of the common problems in the construction of caissons is that caissons cannot rely on their own weight to sink in strata with high side friction resistance. [0003] At present, when the caisson cannot sink by its own weight due to excessive lateral resistance of the formation, it is usually achieved by ballasting. However, this method requires a large amount of ballast materials to be piled up on site, which not only takes up a lot of construction space on site, but also increases construction risks by arranging hoistin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/00E02D23/08
CPCE02D23/00E02D23/08
Inventor 郑召怡王云博于东峰周亚国陈燕李川李琳艳林璧君
Owner JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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