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Antirust oil injection device for steel cable in prestressed duct and oil injection method thereof

A fuel injection device and prestressing technology, applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problem of inability to inject fuel into steel beams in the tunnel, achieve good fuel injection effect, reduce material waste, and avoid repeated construction. Effect

Active Publication Date: 2017-07-28
CHINA NUCLEAR IND HUAXING CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a steel beam anti-rust fuel injection device in a prestressed tunnel and its fuel injection method for the defect that the existing technology cannot carry out oil injection of the steel beam in the tunnel.

Method used

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  • Antirust oil injection device for steel cable in prestressed duct and oil injection method thereof
  • Antirust oil injection device for steel cable in prestressed duct and oil injection method thereof
  • Antirust oil injection device for steel cable in prestressed duct and oil injection method thereof

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Embodiment 1

[0031] The structure of this embodiment is as Figure 1-Figure 3 As shown in Fig. 1, a steel beam anti-rust oil injection device in a prestressed channel, the prestressed channel is provided with a grouting hole as an oil injection inlet and an oil injection outlet. Filling port, the bottom is provided with an oil delivery port connected to the oil delivery channel, the oil supply pipe of the oil delivery channel is connected to the intake pipe and the output pipe through the first three-way connection, a pressure gauge is provided on the intake pipe, and the air intake end of the intake pipe is connected to the air compressor Machine, the inlet pipe and the oil supply tank are connected to the oil return pipe through the second tee, the output pipe is connected to the grouting hole at one end of the hole through the hose, the valve 6 is installed on the inlet of the fuel injection, the valve 7 is installed on the outlet of the fuel injection, and the fueling channel There is ...

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Abstract

The invention relates to a device and method for a prestressed duct, in particular to an antirust oil injection device for a steel cable in a prestressed duct and an oil injection method thereof, and belongs to the technical field of building engineering construction. The device and the method are designed for complex environments with large tonnage, super-long cables and anomalous events and are achieved through machining and manufacturing, simulation test and entity application practice. The device is simple in principle and convenient to operate; the profile occupied space is small, the weight is low, carrying is easy, the manufacturing cost is low, and the safety risk of high-altitude operation is low; the oil injection effect is good, cost is saved, efficiency is high, cost is low, and practicability is high; and at the same time, design requirements are met, the cost can also be lowered, the efficiency is improved, the time limit for a project is shortened, and the project quality is improved.

Description

technical field [0001] The invention relates to a device and method for a prestressed tunnel, in particular to a steel beam anti-rust fuel injection device in a prestressed tunnel and a fuel spray method thereof, which belong to the technical field of construction engineering. Background technique [0002] At present, in the prestressing construction, the anti-rust treatment of the steel strands is oil protection before penetrating into the tunnel, and the anti-rust protection technology and equipment for the steel strands in the tunnel are blank at home and abroad. However, in large-scale construction projects, roads and bridges, nuclear power plants and other projects, there are more and more applications of large-tonnage and ultra-long-beam prestressing, and the design requirements are also stricter. It is inevitable that abnormal events will cause shutdowns during construction. The shutdown will cause the prestressed beams that have been stretched and cut to be unable to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12E01D21/00
CPCE01D21/00E04G21/12
Inventor 李仲平杨刚
Owner CHINA NUCLEAR IND HUAXING CONSTR
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