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Bridge foundation pit support and construction method thereof

A bridge foundation and bridge technology, applied in bridges, bridge construction, infrastructure engineering, etc., can solve problems such as column tilting, and achieve the effect of improving safety

Active Publication Date: 2018-09-11
浙江嘉泽聚辰建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the foundation pit of the bridge is dug, piles shall be laid along the edge of the foundation pit of the bridge, and soil retaining boards shall be set between the piles, and then the outside of the piles and soil retaining boards shall be backfilled with soil, so that the piles and soil retaining boards shall be used to achieve However, when backfilling the soil, the backfilled soil squeezes the retaining plate and the piles, which may easily cause the piles to tilt towards the center of the bridge foundation pit

Method used

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  • Bridge foundation pit support and construction method thereof
  • Bridge foundation pit support and construction method thereof
  • Bridge foundation pit support and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment one: a kind of bridge foundation pit support, such as figure 1 and figure 2As shown, the retaining wall 1 of the bridge foundation pit is included, and the retaining wall 1 of the bridge foundation pit is surrounded by Larsen steel sheet piles 2 inserted into the bottom surface of the bridge foundation pit. The retaining wall 1 of the bridge foundation pit is arranged in a rectangular shape, and The inner walls of the two long sides of the retaining wall 1 of the bridge foundation pit are fixedly connected with a long beam 3 by welding, and the long beam 3 is arranged horizontally, and the inner walls of the two short sides of the retaining wall 1 of the bridge foundation pit are fixedly connected by welding There are short beams 4, two long beams 3 and two short beams 4 encircled to form a rectangle, and the two ends of the long beams 3 respectively abut against the side walls of the short beams 4, and the end faces of the long beams 3 and the short beams 4...

Embodiment 2

[0037] Embodiment 2: A construction method for bridge foundation pit support, for the construction method of Embodiment 1: the construction method includes the following steps, step S1: first arrange several Larsen steel sheet piles 2 in sequence and insert them into the bottom surface of the bridge foundation pit , so that several Larsen steel sheet piles 2 arranged in sequence form a long side of the retaining wall 1 of the bridge foundation pit, and then a long beam 3 is installed on the long side of the retaining wall 1 of the bridge foundation pit, and the second support column 5 The end away from the long beam 3 abuts against the bottom of the foundation pit of the bridge, makes the long beam 3 abut against the side wall of the Larsen steel sheet pile 2, and welds the long beam 3 to the Larsen steel sheet pile 2.

[0038] Step S2: Arrange several Larsen steel sheet piles 2 in sequence and insert them into the bottom of the bridge foundation pit, so that the several Larsen...

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Abstract

The invention discloses a bridge foundation pit support and a construction method thereof. Two long cross beams are supported through first supporting columns and second supporting columns to increasethe strength of the bridge foundation pit support, and it is ensured that the wall surface of a bridge foundation pit retaining wall is kept to be upright. According to the key points of the technical scheme, the bridge foundation pit support comprises the bridge foundation pit retaining wall, the inner walls of the two long edges of the bridge foundation pit retaining wall are fixedly connectedwith the long cross beams correspondingly, and the inner walls of the two short edges of the bridge foundation pit retaining wall are fixedly connected with short cross beams correspondingly; the multiple second supporting columns are hinged to one of the long cross beams, the multiple first supporting columns are hinged to the other long cross beam, and the first supporting columns are in threaded connection with connecting columns; and the ends, away from the first supporting columns, of the connecting columns are fixedly connected with sleeves, and the second supporting columns can be arranged on the sleeves in a penetrating mode. According to the bridge foundation pit support and the construction method thereof, the two long cross beams are supported through the first supporting columns and the second supporting columns to increase the strength of the bridge foundation pit support, and it is ensured that the wall surface of the bridge foundation pit retaining wall is kept to be upright.

Description

technical field [0001] The invention relates to the field of municipal engineering, more specifically, it relates to a bridge foundation pit support and a construction method thereof. Background technique [0002] The foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, and the support, reinforcement and protection measures adopted for the side wall of the foundation pit and the surrounding environment. [0003] In the process of building a bridge, it is necessary to excavate the bridge foundation pit at the base of the ground first, and then pour concrete into the bridge foundation pit. [0004] After the foundation pit of the bridge is dug, piles shall be laid along the edge of the foundation pit of the bridge, and soil retaining boards shall be set between the piles, and then the outside of the piles and the soil retaining boards shall be backfilled with soil, so that the piles and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D29/02E01D21/00
CPCE01D21/00E02D17/04E02D29/02
Inventor 徐建超徐美丽
Owner 浙江嘉泽聚辰建设有限公司