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Combined type supporting force guide piece for crossed support system

A technology of criss-crossing and supporting systems, which is applied in excavation, construction, infrastructure engineering, etc., can solve problems affecting the safety and stability of foundation pits, and the unbalanced force of the support system in foundation pits, etc., to achieve convenient construction and versatility Good results

Inactive Publication Date: 2018-05-08
DONGTONG ROCK SOIL SCI & TECH HANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In actual construction, there will be intersecting internal support beams supported in the foundation pit. The current design scheme usually adopts measures to avoid the cross intersection distribution of internal support beams as much as possible; It can simplify the support structure in the foundation pit and facilitate the construction; however, the design method to avoid the cross intersection of the inner support beams will often make the support system in the foundation pit unbalanced, affecting the overall safety and stability of the foundation pit

Method used

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  • Combined type supporting force guide piece for crossed support system
  • Combined type supporting force guide piece for crossed support system
  • Combined type supporting force guide piece for crossed support system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, such as figure 1 , figure 2 As shown, a combined support guide for a cross support system includes a guide support inner core 1 at least one layer of steel composite layers 2 distributed on the outer side of the guide support inner core in order from the inside out. In this embodiment The section steel combination layer is one layer.

[0024] The guiding support core includes first guiding supporting rods 1.1 and second guiding supporting rods 1.2 distributed in a crisscross pattern. The first guiding force supporting rod is perpendicular to the second guiding force supporting rod. Both the first guiding force support rod and the second guiding force support rod are made of H-shaped steel.

[0025] The section steel combination layer is a rectangular frame or a square frame, and the section steel combination layer of this embodiment is a square frame. The profiled steel composite layer and the guide support inner core together form a rectangular or square suppo...

Embodiment 2

[0031] Embodiment 2. For the rest of the structure of this embodiment, refer to Embodiment 1. The difference lies in:

[0032] The section steel composite layer in this embodiment is two layers. In the two adjacent profile steel composite layers: the first support profile on the outer side and the first support profile on the inner side are connected by bolts, the second support profile on the outer side and the second support profile on the inner side are connected by bolts. The third support section steel is connected with the third support section steel located on the inner side by bolts, and the fourth support section steel located on the outer side is connected with the fourth support section steel located on the inner side by bolts.

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Abstract

The invention discloses a combined type supporting force guide piece for a crossed support system. By means of the combined type supporting force guide piece for the crossed support system, a foundation trench is supported by an internal supporting beam of an internal support in the foundation trench according to the crossed distribution condition, the problem about unbalance stress of the supporting system in the foundation trench due to the condition of avoiding the crossed condition of the internal supporting beam is solved, and construction is convenient. The combined type supporting forceguide piece comprises a force guide supporting inner core and at least one structural steel combination layers sequentially distributed on the outer side of the force guide supporting inner core frominside to outside, the force guide supporting inner core comprises a first force guide supporting rod and a second force guide supporting rod which are distributed in a crossed manner, the structuralsteel combination layers are rectangle frames or square frames, each structural steel combination layer is defined by first supporting structural steel, second supporting structural steel, third supporting structural steel and fourth structural steel, and the structural steel combination layers and the force guide supporting inner core jointly form the rectangle or square frames.

Description

Technical field [0001] The invention relates to a foundation pit supporting structure, in particular to a combined supporting and guiding member for a cross supporting system. Background technique [0002] In order to ensure the safety of the underground structure and the surrounding environment of the foundation pit, it is necessary to adopt protective measures such as support and reinforcement on and around the side wall of the foundation pit. The current foundation pit support system usually includes foundation pit retaining piles arranged around the edge of the foundation pit, surrounding beams located on the inner side of the foundation pit retaining piles, and supports in the foundation pit arranged between the surrounding beams. The internal support of the foundation pit usually includes a pair of steel inner support beams supported between the surrounding rim beams, wherein the steel inner support beams are prestressed by hydraulic jacks to support the surrounding purlin ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 胡琦胡焕黄星迪朱海娣竹相
Owner DONGTONG ROCK SOIL SCI & TECH HANGZHOU
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