The results of the first waterproof construction skill contest held in Beijing will be announced in April

On March 26th, 2012, the Beijing Railway Traffic Engineering Construction held the first waterproof construction skill contest. A total of 7 teams participated in the construction of three types of waterproof materials including EVA plastic waterproof sheet, bentonite waterproof blanket and SBS modified bitumen waterproof sheet. game. The results of the competition will be announced in April.

The Skills Competition was hosted by the Municipal Housing and Urban-Rural Development Committee, the Urban Rail Transit Construction Management Company, and Beijing Dongzhimen Airport Express Track Co., Ltd., and was organized by China Railway First Group Co., Ltd., China Railway 16th Bureau Group Co., Ltd. and Beijing Urban Construction Group Co., Ltd. . Before the match, the organizer introduced the purpose of this activity to “strengthen skills, safety in production, and people-oriented, green construction”. Its purpose is to promote the continuous improvement of the professional quality and skill level of rail transit construction management personnel and front-line operators. Further consolidate the basic work of quality and safety management.

At 14:00, the competition officially began. Beijing Chengjie Construction Engineering Waterproofing Co., Ltd., Henan Jian'an Waterproof & Anticorrosive Engineering Co., Ltd., Beijing Yuanda Hongyu Waterproof Engineering Co., Ltd., Beijing North Huarong Construction Engineering Co., Ltd., and Beijing Senhua Construction Co., Ltd. Waterproof Engineering Co., Ltd., Henan Hengchang Waterproof and Anticorrosion Co., Ltd., Henan Province Anticorrosive Enterprise Group Co., Ltd. and Beijing Jingjian Waterproof Construction Co., Ltd., 7 teams, entered the stadium with raised platforms and vertical walls to carry out EVA plastics. Waterproofing board, bentonite waterproofing blanket and SBS modified bitumen waterproofing membrane are used to lay three kinds of waterproof materials, in which EVA plastic waterproofing board and bentonite waterproofing blanket are constructed using 'external anti-inner plastering' method, and modified bituminous waterproofing material adopts 'external anti-waterproofing'. Externally posted 'method construction.

In the SBS modified bitumen waterproofing membrane paving, the evaluation items are waterproof reinforcement layer, appearance quality of coil laying, overlap width and overlapping sequence, and weld quality. The evaluation item in EVA plastic waterproof pavement is appearance quality. , Waterproof board lap width and overlapping sequence, weld quality, double weld airtightness detection, waterproof board repair five parts; EVA plastic waterproof board will also be back-mounted waterstop construction, evaluation items include: appearance quality ,welding quality,lap width,virgin edge cutting;bentonite waterproof blanket pavement evaluation items for large surface waterproof blanket appearance quality, large surface waterproof blanket lap joint quality, large surface waterproof blanket fixed spacing, corner waterproof blanket reinforcement layer width , Corner waterproof blanket strengthening layer laying quality, corner waterproof blanket strengthening layer overlapping quality, yin and yang angle waterproof reinforced layer quality seven parts. Among them, the bentonite waterproof blanket and the EVA waterproofing board must be overlapped, and the appearance quality, the lap width, and the overlapping process should be evaluated. After the actual operation, a waterproof theory knowledge test was also conducted.

Some problems were revealed through the competition. The team was naturally the best in the company, but it was still full of arbitrariness in the construction process, construction method, and bentonite waterproof blanket and EVA waterproof board. Not the same, of course, this is the significance of this game. Three-point materials and seven-point construction are particularly important for the quality of waterproofing projects. There is no standard uniform construction method. For projects with huge volumes, it is a disaster. The results of the competition are not important. Through this form of competition, the promotion of exchanges and technological advancement among the teams, and the formation of a standard unified construction plan is the most important measure. The organizer can actively intervene and guide the construction of waterproofing, and it will surely have a positive impact on the quality of the waterproof construction of Beijing rail transit construction.

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