Small-clear-distance bailey truss dismantling method
A technology of small clear distance and Bailey beams, which is applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problem that the small clear distance Bailey supports cannot continue to be used, and achieve the effect of reducing construction costs and improving work efficiency.
Inactive Publication Date: 2020-09-04
ROAD & BRIDGE INT +1
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[0008] The main purpose of this application is to provide a method for dismantling the Bailey bracket with a small net distance to solve the problem that the Bailey bracket with a small net distance can not be used after being cut and removed in the related art
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[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0036] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for...
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The invention discloses a small-clear-distance bailey truss dismantling method. The method comprises the steps of arranging a monitoring point on the side which is parallel to an explosion source, namely, the explosion facing side of an existing line, and evenly arranging other monitoring points on the front side and the rear side with the monitoring point as the center according to a preset number of pairs; arranging a vibration sensor for acquiring blasting vibration data on each monitoring point; monitoring and analyzing the influence of blasting excavation of the newly-built tunnel on theexisting tunnel according to the blasting vibration data collected by the monitoring points to obtain a vibration sensitive area and a relative safe area in the existing tunnel; and arranging a new monitoring point according to the vibration sensitive area, the relative safe area and the blasting construction progress of the newly-built tunnel. The technical problem that the small clear-distance bailey truss cannot be continuously used after being cut and disassembled in the prior art can be solved.
Description
technical field [0001] The present application relates to the technical field of bridge engineering, in particular, to a method for removing a Bailey bracket with a small clear distance. Background technique [0002] The support method is a common process for the installation and construction of steel box girders. After the construction is completed, the support removal is also an important part of the overall plan, but it is also a part that is easily overlooked in the early stage of the plan. When the design position of the steel box girder is low, and the door opening structure needs to be set below to meet the traffic requirements of electric rail vehicles, etc., at this time, only a small clear distance can be set to provide the necessary space for the unloading and removal of the support in the later stage. [0003] When dismantling the Bailey bracket with a small clearance, it is not allowed to cut and remove it from the bottom of the bracket as a whole, especially wh...
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IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 渠凯李川朱庆庆侯兆隆杨君良
Owner ROAD & BRIDGE INT