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A character-shaped expansion base structure

A technology of enlarging the foundation and character shape, which is applied in the field of foundation structure of bridges or buildings, can solve the problems of not being able to give full play to its advantages, large deformation of the enlarged foundation, and high geological requirements, so as to facilitate load transmission, reduce foundation displacement, The effect of low construction difficulty

Active Publication Date: 2018-11-23
CHINA RAILWAY ERYUAN ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the emergence of larger-span bridges is becoming more and more common, but the conventional enlarged foundation cannot give full play to its advantages due to large deformation and high geological requirements.

Method used

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  • A character-shaped expansion base structure
  • A character-shaped expansion base structure
  • A character-shaped expansion base structure

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] refer to figure 1 with image 3 , a character-shaped enlarged foundation structure of the present invention includes pier columns 10, enlarged foundations and bedrock 30, the enlarged foundation is located on the bedrock 30, and pier columns 10 are consolidated with the enlarged foundation. The enlarged foundation is composed of an upper foundation part 21 and a lower foundation part 22 stacked up and down. The lower foundation part 22 is placed on the bedrock 20 and closely attached thereto, and the upper part 21 of the foundation is connected to the pier 10 . The width of the upper foundation part 21 in the transverse direction is smaller than the width of the lower foundation part 22 in the transverse direction. The foundation is divided into upper and lower parts with reasonable stress and clear force transmission. This treatment method tha...

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Abstract

The invention provides a spread foundation structure shaped like a Chinese character 'pin', and aims at better meeting the stress requirement of a bridge span structure, reducing foundation displacement, improving the structural-load-carrying capacity and reducing the constructional difficulties and construction risks. The spread foundation structure comprises a pier stud, a spread foundation and bed rock, the spread foundation is located on the bed rock, and the pier stud is fixedly solidified to the upper portion of the spread foundation. The spread foundation is formed by arranging a foundation upper part and a foundation lower part in an up-and-down stacked mode, the foundation lower part is arranged on the bed rock and tightly attached to the bed rock, and the foundation upper part is connected with the pier stud; the width of the foundation upper part in the transverse direction of a bridge is smaller than that of the foundation lower part in the transverse direction of the bridge.

Description

technical field [0001] The invention relates to the foundation structure of bridges or buildings, and is especially suitable for bridge span structures with good geological conditions. Background technique [0002] The expanded foundation is a form of foundation that directly transfers the load from the pier (platform) and the superstructure to the shallower supporting foundation. Generally, the method of open-cut foundation is used for construction, so it is also called open-cut enlarged foundation. or shallow foundation. [0003] Compared with pile foundations and caisson foundations, the expanded foundation has better advantages, such as convenient construction, economical and reasonable. Conventional enlarged foundations are mostly used for smaller-scale bridge span structures, mainly because the upper load transmitted to the foundation is relatively small. However, the emergence of larger-span bridges is becoming more and more common, but the conventional enlarged fou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/01
CPCE02D27/01E02D2200/16
Inventor 徐勇陈列陈克坚何庭国胡京涛游励晖韩国庆谢海清任伟黄毅胡玉珠杨国静
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD