地下室防水施工方案主要有
地下室防水施工方案主要有:外防外贴法施工、外防内贴法施工 、离壁式衬砌防水施工等。
The waterproof construction scheme of basement mainly includes: external prevention and external sticking method construction, external prevention and internal sticking method construction, off wall lining waterproof construction, etc.
根据《地下工程防水技术规范》GB50108-2008,本建筑应有严格防水措施地下防水等级为一级。
According to the technical code for waterproofing of Underground Engineering (gb50108-2008), strict waterproofing measures shall be taken for the building, and the grade of underground waterproofing shall be grade I.
①、地下室外围护结构防水项目分为砼结构工程、抗渗砼结构自防水。地下室基础底板抗渗等级为0.6Mpa防水结构砼的配合比应通过实验室确定,抗渗等级应比设计等级高一级(0.2Mpa)。
①. The waterproofing project of underground outdoor enclosure structure is divided into concrete structure engineering and impermeable concrete structure self waterproofing. The mix proportion of waterproof structural concrete with the seepage resistance grade of 0.6MPa for basement foundation slab shall be determined by the laboratory, and the seepage resistance grade shall be one grade higher than the design grade (0.2MPa).
②、基础底板防水层为两道,采用卷材-涂料相结合防水方案。卷材采用1.5㎜厚三元乙丙橡胶防水卷材,防水涂料采用2㎜厚聚氨脂防水涂料。
② the waterproof layer of the foundation base plate is two layers, and the waterproof scheme of the combination of coiled material and coating is adopted. 1.5mm thick EPDM waterproof roll is used as the roll, and 2mm thick polyurethane waterproof coating is used as the waterproof coating.
③、地下室外围护结构除地下室外墙抗渗砼结构自防水外,同样两道防水层,采用卷材-涂料相结合防水方案,卷材采用1.5㎜厚三元乙丙橡胶防水卷材, 防水涂料采用2㎜厚聚氨脂防水涂料。防水层的保护层采用40厚聚苯板。侧墙保护层以外开挖1米以内采用2:8灰土分层夯实回填。压实系数>0.95。
③ in addition to the self waterproof of the anti permeability concrete structure of the basement exterior wall, the same two waterproof layers shall be applied. The waterproof scheme of the combination of coiled material and coating shall be adopted. The coiled material shall be 1.5mm-thick EPDM waterproof coiled material, and the waterproof coating shall be 2mm thick polyurethane waterproof coating. The protective layer of waterproof layer adopts 40 thick polystyrene board. 2:8 lime soil shall be used to compact and backfill in layers within 1m from the excavation outside the side wall protective layer. Compaction coefficient > 0.95.
④、地下室顶板不在上部建筑主体内时,顶板上应作防水,防水层同样采用卷材-涂料相结合防水方案,防水层保护层为50㎜厚C20细石砼。
④ when the basement roof is not in the main part of the upper building, the roof shall be waterproof, and the waterproof layer shall also adopt the waterproof scheme of the combination of coiled material and coating. The protective layer of the waterproof layer is C20 fine aggregate concrete with a thickness of 50 mm.