Tunnel construction safety construction method
A construction method, safe technology, used in tunnels, tunnel linings, safety devices, etc.
Active Publication Date: 2019-08-16
CHINA RAILWEY ENG SERVICE CO LTD
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Problems solved by technology
[0004] Aiming at the defects in the above-mentioned prior art, the purpose of the present invention is to provide a construction method for a safe drainage structure of a tunnel, setting a whole layer as a drainage layer, abandoning the setting of pipelines, and reasonably calculating the water permeability of the inner wall of the tunnel, The mesh size of the screen is set to achieve the best drainage effect; on the other hand, through the support of the pillars, the problem of clogging is completely avoided
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the accompanying drawings in the embodiments of the application. Apparently, the described embodiments are only part of the embodiments of the application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.
[0036] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purpos...
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The invention provides a tunnel construction safety construction method. A tunnel safety drainage structure comprises an arch structure and an inverted arch structure on a ground floor, the arch structure comprises from the inside to the outside an initial lining layer, a drainage layer, a waterproof layer, and a secondary lining structure; the drainage layer comprises a top plate, a strut, and abottom plate, the top plate is a sieve plate with through holes, the inverted arch structure comprises a water collecting channel, and the drainage layer communicates with the water collecting channelthrough a communication pipe. According to the tunnel construction safety construction method, accurate calculation is conducted by using of a water permeability calculation formula, the number of the through holes of the top plate can be reasonably set to ensure smooth discharge of water flow; on the other hand, by arranging the entire layer as the drainage layer, the problem of blockage in pipeline in the prior art is fundamentally solved, and smoothness of a drainage channel is ensured.
Description
technical field [0001] The invention belongs to the technical field of traffic tunnel engineering, and in particular relates to a construction method of a tunnel safety drainage structure. Background technique [0002] With the rapid development of traffic tunnel engineering, the tunnel has brought a lot of convenience to human traffic, but the geographical environment of the tunnel has brought about the problem of waterproofing and drainage. At present, the initial support layer of the tunnel will A circular drain pipe is arranged, and there are holes on the drain pipe, and water enters the drain pipe through the holes. [0003] In the existing technology, buried pipes are generally used for drainage, that is, the initial support is the support form immediately after excavation. Due to factors such as the construction of the tunnel support structure, the drainage pipe will be squeezed and deformed, causing the tunnel to The circular drainage is not smooth, which has become...
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Login to View More IPC IPC(8): E21F16/02E21D11/38
CPCE21D11/38E21F16/02
Inventor 不公告发明人
Owner CHINA RAILWEY ENG SERVICE CO LTD