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Construction technology for water draining pipe of high-speed rail bridge

A construction process and technology for drainage pipes, applied in bridges, bridge parts, bridge materials, etc., can solve problems such as affecting the safety of high-speed rail traffic and pedestrians, shortening the service life of drainage pipes, and non-vertical installation of drainage pipes, so as to achieve convenient and fast installation. , The effect of shortening the casting cycle and strong adhesion

Inactive Publication Date: 2017-12-01
HEFEI ANLI ELECTRIC POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional bridge drain pipes are installed at the junction of the side retaining wall and the bridge deck for side drainage. This drainage method is simple, quick and practical, but the elevation of the drain pipe is higher than that of the road surface, and the drainage effect is poor; the installation of the drain pipe is not vertical , causing the drain grate to be uneven, and the driving comfort of the vehicle is poor; the seal around the drain pipe is not tight, and cracks are prone to occur, and the water is left from the outer wall of the drain pipe and along the beam body, which not only affects the appearance of the bridge, but also surrounds the bridge. It also corrodes the steel reinforcement placed in it, shortens the service life of the drain pipe, and affects the driving safety and pedestrian safety of the high-speed rail. It is necessary to improve the construction and installation process of the drain pipe

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A construction technique for a high-speed railway bridge discharge pipe, comprising the following steps:

[0023] (1) Install the mold corresponding to the reserved hole of the drain pipe on the formwork fixed by the prefabricated beam combination; among them, the size of the reserved hole of the drain pipe is 280-320×300-320mm.

[0024] (2) Use PVC pipes to bury the holes, ensure that the pre-buried holes are vertical, pour concrete, and after 26 days of curing, remove the reserved hole mold for the drain pipe;

[0025] (3) Chisel out the PVC pipe, chisel out the installation groove on the top of the bridge deck, put the drain pipe into the hole, and install the drain pipe fixedly; use grouting materials to seal off the wall of the drain pipe and the installation groove; Mix with the grouting material according to the mass ratio of 5:1 to obtain the mixed slurry, which flows into the gap between the drain pipe and the bridge from the installation groove, and compact th...

Embodiment 2

[0028] A construction technique for a high-speed railway bridge discharge pipe, comprising the following steps:

[0029] (1) Install the mold corresponding to the reserved hole of the drain pipe on the formwork fixed by the prefabricated beam combination; among them, the size of the reserved hole of the drain pipe is 280-320×300-320mm.

[0030] (2) Use PVC pipes to bury the holes, ensure that the pre-buried holes are vertical, pour concrete, and after 28 days of curing, remove the reserved hole mold for the drain pipe;

[0031] (3) Chisel out the PVC pipe, chisel out the installation groove on the top of the bridge deck, put the drain pipe into the hole, and install the drain pipe fixedly; use grouting materials to seal off the wall of the drain pipe and the installation groove; Mix the grouting material with the grouting material according to the mass ratio of 6:1, and then get the mixed slurry, which will flow into the gap between the drain pipe and the bridge from the insta...

Embodiment 3

[0034] A construction technique for a high-speed railway bridge discharge pipe, comprising the following steps:

[0035] (1) Install the mold corresponding to the reserved hole of the drain pipe on the formwork fixed by the prefabricated beam combination; among them, the size of the reserved hole of the drain pipe is 280-320×300-320mm.

[0036] (2) Use PVC pipes to bury the holes, ensure that the pre-buried holes are vertical, pour concrete, and after 28 days of curing, remove the reserved hole mold for the drain pipe;

[0037] (3) Chisel out the PVC pipe, chisel out the installation groove on the top of the bridge deck, put the drain pipe into the hole, and fix the drain pipe; use grouting materials to seal off the wall of the drain pipe and the installation groove; Mix the grouting material with the grouting material according to the mass ratio of 4:1 to obtain the mixed slurry, which will flow into the gap between the drain pipe and the bridge from the installation groove, ...

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Abstract

The invention discloses a construction technology for a water draining pipe of a high-speed rail bridge. The construction technology comprises the following steps that (1) a mould corresponding to a reserved hole of the water draining pipe is installed on a formwork fixed by combining precast beams; (2) the hole is buried and formed by using a PVC pipe, it is ensured that the pre-buried hole is vertical, concrete is poured, and the mould of the reserved hole of the water draining pipe is removed; (3) the water draining pipe is placed in the hole and fixedly installed, and sealing and plugging are conducted on the periphery of the pipe wall of the water draining pipe and an installing trough by using grouting materials; and (4) a building sealant is painted on the periphery of an upper opening of the water draining pipe. The construction technology for the water draining pipe of the high-speed rail bridge is easy and convenient to operate and convenient and quick to install, the pouring cycle of the precast beams is shortened, smooth water draining and driving safety are ensured, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction technique for a high-speed railway bridge drain pipe. Background technique [0002] The traditional bridge drain pipes are installed at the junction of the side retaining wall and the bridge deck for side drainage. This drainage method is simple, quick and practical, but the elevation of the drain pipe is higher than that of the road surface, and the drainage effect is poor; the drain pipe is not installed vertically. , causing the drain grate to be uneven, and the driving comfort of the vehicle is poor; the seal around the drain pipe is not tight, and cracks are prone to occur, and the water is left from the outer wall of the drain pipe and along the beam body, which not only affects the appearance of the bridge, but also surrounds the bridge. It also corrodes the steel reinforcement placed therein, shortens the service life of the drain pipe, and affe...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D19/08C09K3/10C04B28/04E01D101/24C04B111/20C04B111/27C04B111/70
CPCE01D21/00C04B28/04C04B2111/00017C04B2111/00293C04B2111/20C04B2111/27C04B2111/70C09K3/10C09K2003/1087E01D19/086E01D2101/24C04B24/281C04B14/106C04B18/08C04B14/42C04B2103/302C04B2103/50C04B24/121C04B24/20C04B24/04C04B24/12
Inventor 殷世尧
Owner HEFEI ANLI ELECTRIC POWER ENG CO LTD
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