Field prefabrication and installation method for groove cover plate in tunnel
A technology for prefabricated installation and in-tunnel application in mining equipment, earth-moving drilling, manufacturing tools, etc. It can solve the problems of high land occupation cost, long site occupation time, and high product transportation cost for prefabricated sites, so as to save costs and speed up Construction progress and the effect of slow water evaporation
Inactive Publication Date: 2020-09-08
CHINA RAILWAY NO 5 ENG GRP +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0002] Tunnel trench cover plates are generally prefabricated in the prefabrication site and transported to the site for installation. The cost of prefabricated site occupation is high, quality problems a
Method used
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] like figure 1 As shown, an embodiment of the on-site prefabricated installation method of the trench cover plate in the tunnel of the present invention comprises the following steps:
[0022] S1: Combined with the construction period plan, according to the design size requirements, customize the plastic mold of the trench cover plate;
[0023] S2: Place the plastic mold, flat vibrator, backing plate and steel mesh in the tunnel;
[0024] S3: Place the backing plate flat on the slot of the groove, place the plastic mold neatly on the backing plate, and place the steel mesh in the plastic mold;
[0025] S4: Produce concrete according to the established ratio and deliver it to the site;
[0026] S5: Concrete pouring in plastic molds, using a flat vibrator to vibrate and compact;
[0027] S6: Use geotextile to cover the poured ...
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Abstract
The invention discloses a field prefabrication and installation method for a groove cover plate in a tunnel. The field prefabrication and installation method comprises the steps that S1, according tothe design size requirement, groove cover plate plastic molds are customized; S2, the plastic molds, a flat plate vibrator, a base plate and a reinforcing mesh are placed in the tunnel; S3, the base plate is flatly placed on a groove clamping groove, the plastic molds are neatly placed on the base plate, and the reinforcing mesh is placed in the plastic molds; S4, concrete is produced according tothe set ratio and conveyed to the field; S5, concrete pouring is conducted in the plastic molds, and vibrating and compacting are conducted; S6, the poured cover plate is covered with geotechnical cloth, and watering maintenance is conducted; S7, after maintenance is conducted till the mold stripping strength is reached, demolding is conducted, and maintenance continues to be conducted; and afterthe cover plate reaches the strength, the cover plate is neatly and vertically placed on the top of a groove side by side and obliquely abuts against a lining; and S8, the base plate is removed, theprefabricated cover plate is put down, and installation is completed. The field prefabrication and installation method has the advantages that construction is convenient, the cost is low, the damage rate of the prefabricated cover plate can be decreased, and the construction efficiency can be improved.
Description
technical field [0001] The invention mainly relates to the field of tunnel engineering, in particular to an on-site prefabricated installation method for a trench cover plate in a tunnel. Background technique [0002] Tunnel trench cover plates are generally prefabricated in the prefabrication site and transported to the site for installation. The cost of prefabricated site occupation is high, quality problems are likely to occur if maintenance is not timely, product transportation costs are high, and cover plates are often damaged during loading, unloading and transportation. , The site takes a long time and other issues. In order to reduce the prefabrication and transportation costs of the tunnel trench cover, and reduce the damage rate of the prefabricated cover, on the premise of ensuring the prefabricated quality of the tunnel trench cover, it is necessary to improve the conventional construction process according to the actual site conditions, reduce the engineering co...
Claims
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Login to View More IPC IPC(8): B28B23/02B28B1/04B28B1/093B28B11/24E21F17/00
CPCB28B1/045B28B1/093B28B11/245B28B23/02E21F17/00
Inventor 刘钰王涛祁建良江来云
Owner CHINA RAILWAY NO 5 ENG GRP