Prefabricated caisson and installation method thereof

An installation method and prefabricated technology, applied in caissons, buildings, infrastructure engineering, etc., can solve the problems of increasing the installation time on the bottom, washing away the gravel on the ground, and difficulty in construction, so as to facilitate the installation on the bottom and simplify the processing Steps, the effect of increasing friction

Inactive Publication Date: 2014-05-14
INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing caisson installation method, the treatment process of the foundation is relatively complicated, and in the process of riprap, affected by the water flow, it is easy to have the phenomenon that the paving gravel is washed away, which brings difficulties to the construction and increases the installation cost of sitting on the bottom. The time will affect the stability of the installation of the caisson sitting on the bottom

Method used

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  • Prefabricated caisson and installation method thereof
  • Prefabricated caisson and installation method thereof
  • Prefabricated caisson and installation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] refer to Figure 1-4 , a prefabricated caisson, comprising a main body 1 provided with a bottom plate 2, a gravel cabin 4 for storing gravel 7 is provided below the bottom plate 2, the gravel cabin 4 is composed of the bottom plate 2, a support member 6 arranged below the bottom plate 2, and The arched deck 5 whose ends are connected to the supports 6 is jointly enclosed, and the arched deck 5 is built by block stones 9 and keystones 10, and an arch is provided between the keystone 8 and the bottom plate 2. Capstone pulling and pressing device 10, under the bottom plate 2 in the gravel cabin 4, several conical piles 3 perpendicular to the bottom plate 2 are arranged, the conical head of each conical pile 3 extends to the outside of the bottom plate, and the conical head 13 is a cone or a polygonal pyramid. The cone head 13 is provided with a vertebral body 14 connected to the bottom plate 2, and the vertebral body is 14 cylinders or polygonal prisms. Protrusions 11 an...

Embodiment 2

[0039] refer to Figure 10 , is a prefabricated caisson, including a main body 1 provided with a bottom plate 2, a gravel cabin 4 for storing gravel 7 is arranged below the bottom plate 2, and the gravel cabin 4 is composed of the bottom plate 2, a support member 6 arranged below the bottom plate 2, And the arched deck 5 whose end is connected on the support member 6 is jointly surrounded, wherein the bottom plate 2 is in the shape of a bell mouth. The arched deck 5 is built by block stones 9 and keystones 10 , and a keystone tensioning device 10 is provided between the keystone 8 and the bottom plate 2 . Other technical features are the same as those in Embodiment 1, and will not be repeated here.

[0040] refer to Figure 11 , when the main body of the caisson 1 sits on the bottom, its bottom plate 2 covers the gravel layer 20, and the friction between the bottom plate 2 and the gravel layer 20 further stabilizes the caisson, especially when the caisson is set on a foundat...

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PUM

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Abstract

The invention discloses a prefabricated caisson and an installation method thereof. The prefabricated caisson comprises a body provided with a base plate, wherein a gravel bin for storing gravel is arranged below the base plate, the gravel bin is defined by the base plate, supporting parts arranged below the base plate, and an arched deck with the ends connected to the supporting parts, the arched deck is formed by laying dimension stone and capstone, and a capstone tensioning and compressing device is arranged between the capstone and the base plate to be used for dragging the caisson body to a preset foundation for construction; part of ballast is added into the caisson body to enable the bottom of the arched deck to be close to the foundation, the capstone tensioning and compressing device is adjusted to enable the arched deck to collapse, and then gravel is released to form a gravel layer on the surface of the foundation; ballast is added into the caisson body to enable the base plate of the caisson to sit on the bottom to be in contact with the gravel layer. According to the prefabricated caisson and the installation method thereof, gravel can be released fast through the arrangement of the gravel bin on the bottom of the caisson, requirements for leveling the foundation are reduced, processing processes are simplified, and fast sit-on-bottom installation is facilitated.

Description

technical field [0001] The invention relates to a prefabricated caisson and an installation method thereof. Background technique [0002] Caissons are mostly used as underwater foundations for structures such as gravity docks or bridges. It is usually prefabricated with concrete or metal materials. Before installing the prefabricated caisson, it is necessary to carry out ground treatment at the preset installation location, which generally includes foundation trench excavation, foundation bed riprap, foundation bed compaction, foundation bed leveling, etc. step. In order to prevent uneven settlement caused by uneven foundation bed, it is required to carry out fine-leveling treatment on the foundation bed after riprap. The usual practice is to install steel rails underwater, set underwater scraping tracks on the rails, and the divers push the scraping tracks underwater to fine-level the bed. In order to ensure the compactness of the foundation bed, the bottom of the scrapi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D23/16
Inventor 丁桦宋京波郑瑞芸周秋萍盛国强
Owner INST OF IND TECH GUANGZHOU & CHINESE ACADEMY OF SCI
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