Back surface stuck AB fastener self-adhering -type water-proof board construction process
A construction technology and waterproof board technology, which is applied in the direction of shaft lining, tunnel lining, underground chamber, etc., can solve problems such as hidden safety hazards, difficult quality control, difficult operation, etc., and achieve convenient construction, high laying quality, and simple process steps Effect
Active Publication Date: 2011-02-09
CHINA RAILWAY FIRST GRP CO LTD
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to provide a construction process for a self-adhesive waterproof board with AB buckles on the back, which is simple in process steps and convenient in construction, and can properly solve the problem of self-adhesive waterproofing. Difficult operation, difficult quality control and potential safety hazards in the process of laying boards
Method used
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Embodiment Construction
[0027] The construction process of a self-adhesive waterproof board with AB buttons on the back of the present invention comprises the following steps:
[0028] The first step, preparations before laying:
[0029]First of all, according to the structure and length of the tunnel to be constructed, determine the width and quantity of the self-adhesive waterproof board for laying, and determine the size of the AB buckle to be laid accordingly. Determine the size of the selected waterproof board according to the structure of the tunnel to be constructed. The width is 2m, and the number of waterproof boards to be used is determined according to the length of the tunnel to be constructed; correspondingly, the length of the selected AB buckle is determined to be 2m, and the width is 15cm. Then, lay a plurality of AB buckles on the back of each waterproof board in a direction perpendicular to the laying direction, and the fixed distance between the AB buckles on the back of the waterp...
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The invention discloses a construction technology by sticking AB buttons on the back of a self-adhesive waterproof plate, which comprises the following steps that: the preparation work before paving comprises that: a plurality of AB buttons are correspondingly stuck on the back of each waterproof plate; a substrate, that is a primary concrete surface, is treated; a geotextile is paved and a setting mark is marked. The AB buttons and the waterproof plates are paved: one side of each AB button is torn off and correspondingly fixed on the geotextile according to the setting mark, then the waterproof plates are paved on the geotextile in turn by the splicing performance between the A and the B surfaces of the AB buttons; the thin part of the lap joint of the waterproof plates is treated: after the treatment in a double welded joint overlap welding mode, a layer of double-surface self-adhesive waterproof plate jointing strips is stuck. A waterproof plate protecting film is torn off: the waterproof plate lap joint is treated and detected to be qualified, then a secondary lining is carried out; after reinforcing rods are bond and welded and before concrete is cast, the protecting film is torn off. The technology has simple steps and convenient construction and can properly solve the problems of difficult operation, unmanageable quality and hidden trouble of safety in the process of paving the self-adhesive waterproof plate.
Description
technical field [0001] The invention relates to the technical field of traffic tunnel engineering, in particular to a construction process of a self-adhesive waterproof board with AB buckles laid on the back. Background technique [0002] At present, in the field of traffic tunnel engineering technology, the waterproof and drainage grades of the constructed tunnels are all required to be very high. For example, the Liuyang River Tunnel requires Class I waterproofing and drainage. It is the first passenger dedicated line tunnel in my country that mainly adopts the waterproof type. ", the material used is self-adhesive waterproof board. The biggest advantage of the self-adhesive waterproof board is that it can prevent groundwater from "channeling" between the second lining and the waterproof board. The total laying area of the Liuyang River Tunnel is more than 410,000 square meters. The self-adhesive waterproof board is composed of three parts, namely the tire base, the pro...
Claims
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IPC IPC(8): E21D11/38
Inventor 袁仁爱罗田郎李昌宁郭跃雷稳宪
Owner CHINA RAILWAY FIRST GRP CO LTD