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A stable support foundation for a river-crossing bridge

A stable support and foundation technology, applied in infrastructure engineering, construction, protection devices, etc., can solve problems such as poor reliability of pipeline support, achieve reliable support, ensure reliability, and improve safety life.

Active Publication Date: 2020-12-29
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a stable support foundation for a river-crossing bridge, which solves the technical problem of poor reliability of the existing water delivery pipeline foundation for pipeline support

Method used

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  • A stable support foundation for a river-crossing bridge
  • A stable support foundation for a river-crossing bridge
  • A stable support foundation for a river-crossing bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Example 1, a stable supporting foundation for a cross-river bridge, such asfigure 1 ,figure 2 withimage 3 As shown, it includes a bridge fixing seat 2 poured on the base 4 and set above the base 4. The base 4 is arranged above a composite foundation, the composite foundation includes a pile column 20, a cushion layer 21 above the pile column 20, and a rigid foundation 22 above the cushion layer 21. Between two adjacent piles 20, there are inter-pile oblique-stayed concrete columns 23 and pile stabilization holding blocks 24, and the adjacent inter-pile oblique-staying concrete columns 23, pile stabilization holding blocks 24 and piles 20 form a right triangle , Forming a stable composite foundation pile. The lower ends of the piles 20 are cast in the incompressible stratum 25, and the diagonal-stayed concrete columns 23 between the piles are cast in the soft soil layer 26 above the incompressible soil layer.

[0026]One end of the inter-pile cable-stayed concrete column 23 is con...

Embodiment 2

[0032]Embodiment 2 is a stable support foundation for a cross-river bridge. The inflatable rubber pad 9 is fixed at the top of the revolving column 8 to prevent displacement of the inflatable rubber pad 9 that may be caused by various factors, thereby ensuring that the inflatable rubber pad is stressed The uniformity, to avoid accidental blasting.

[0033]The side wall of the revolving hole 6 is provided with a piercing protrusion 12 corresponding to the inflatable rubber pad 9. The inflatable rubber pad with sufficient elasticity can be used to ensure the support safety when no vibration occurs. High elasticity can also be pierced by the piercing protrusion 12, forming a double guarantee.

[0034]The structure of this embodiment is the same as that of the first embodiment.

Embodiment 3

[0035]Embodiment 3, a stable support foundation for a cross-river bridge, the base 4 is provided with a first shoulder 13 corresponding to the outer wall of the revolving hole 6, and a second shoulder 13 is provided between the first shoulder 13 and the outer wall of the revolving hole 6. A buffer component, the first buffer component can absorb the shock generated by the inflatable rubber pad 9 during blasting.

[0036]Further, a second buffer assembly is arranged between the top of the shock-proof block 3 and the bridge fixing base 2, and the second buffer assembly cooperates with the first buffer assembly to form a multi-level buffer layer for reliable shock absorption and energy absorption.

[0037]The structure of this embodiment is the same as that of Embodiment 1 or 2.

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Abstract

The invention discloses a stable support foundation of a cross-river bridge. The stable support foundation comprises a base and a bridge fixing seat, the base is arranged on the upper part of a composite foundation, the composite foundation comprises pier columns, a mattress layer and a rigid foundation, cable-stayed concrete columns between piles and pier column stable holding blocks are arrangedbetween the two adjacent pier columns, one ends of the cable-stayed concrete columns between piles are connected to the upper end parts of the pier columns, the other ends of the cable-stayed concrete columns between piles are connected to the lower end parts of the adjacent pier columns, an anti-vibration block is arranged between the base and the bridge fixing seat, a rotating hole is formed inthe bottom of the anti-vibration block, a rotating column inserted into the rotating hole is arranged at the top of the base, an air inflation rubber cushion is arranged between the top end of the rotating column and the top end of the rotating hole, the height of the air inflation rubber cushion is larger than the height of a table edge, and limiting blocks fixed and clamped with a circumferential limiting groove are arranged on the periphery of the rotating column. According to the stable support foundation of the cross-river bridge, safety of pipeline support is guaranteed in areas with active earthcrust, relative displacement under manual exogenic action is also avoided, and the stability of support is always guaranteed.

Description

Technical field[0001]The invention relates to the technical field of water conservancy engineering, in particular to a stable supporting foundation of a cross-river bridge.Background technique[0002]In order to ensure the stability of the supporting foundation, a composite foundation is often used for support. The composite foundation means that part of the soil of the natural foundation is strengthened or replaced during the foundation treatment process, or reinforced materials are set in the natural foundation. The reinforcement area is composed of the matrix ( Natural foundation soil or modified natural foundation soil) and reinforced artificial foundation composed of two parts. Under the load, the base body and the reinforcement share the load. According to the load transfer mechanism of the composite foundation, the composite foundation is divided into two types: vertical reinforcement composite foundation and horizontal reinforcement composite foundation, and the vertical reinf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/46E02D27/14E02D31/08
CPCE02D27/14E02D27/46E02D31/08
Inventor 真济光张宝魏书剑陈凤姣巫殷武
Owner CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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