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某中型水库除险加固工程坝顶混凝土道路工程,该道路是连接东西两县的交通要道,坝顶道路全长260 m,路面宽6.50 m,自上而下为20 cm厚的C25混凝土路面,15 cm厚水泥碎石垫层,15 cm厚水泥石灰稳定土基层;路面高程114.50 m,路面倾向下游侧设1%的缓坡;单幅每段长6.00 m,路面上游侧设有钢筋混凝土防浪墙工程,防浪墙总长260 m,包括1.20 m宽0.10 m厚C10混凝土垫层;1.00 m宽0.20 m厚的C20钢筋混凝土基础;高1.20 m宽0.35 m的C20钢筋混凝土防浪墙身;防浪墙顶工程115.70 m。路面下游侧加设路缘石,路缘石采用厚0.20 m、高0.60 m的现浇C15混凝土,埋深0.40m,在路沿与坡面排水沟连接的位置处设20 cm宽缺口利于排水。由于是拉动内需项目,工程建设项目多,工期紧。为了赶进度坝顶道路在坝体灌浆和输水洞段开挖拆除新建后坝体土方回填完成后就立即按设计进行路基整理和采用商品混凝土浇筑混凝土路面的方法施工,施工完成一个月后出现不同程度的裂缝。通过成因分析并采取相应处理措施,工程顺利通过验收,至今应用良好。
A medium-sized reservoir reinforcement project dam concrete road construction, the road is connecting the east and west counties traffic arteries, road full-length 260 m, pavement width 6.50 m, top-down 20 cm thick C25 concrete pavement , A 15 cm thick cement-gravel cushion and a 15 cm thick layer of cement-lime stabilized soil. The elevation of the road surface is 114.50 m with a 1% gentle slope on the downstream side of the road surface. Each single section is 6.00 m long and reinforced with concrete on the upstream side Wave wall construction with a total length of 260 m including a 1.20 m wide and 0.10 m thick C10 concrete cushion, a C20 reinforced concrete foundation with a width of 1.00 m and a width of 0.20 m, a C20 reinforced concrete wall with a height of 1.20 m and a width of 0.35 m, Wave top engineering 115.70 m. Curbs are added on the downstream side of the pavement. The curbs are made of cast-in-place C15 concrete with a thickness of 0.20 m and a height of 0.60 m, with a depth of 0.40 m. A 20 cm wide cutout is provided at the location along the road alongside the slope drains for drainage. As it is stimulating domestic demand projects, construction projects and more tight schedule. In order to catch the progress of dam top road in the dam body grouting and water tunnel excavation demolition of newly built dam body earthwork backfill immediately after the completion of the design of roadbed finishing and the use of concrete pouring concrete pavement construction method, a month after the completion of construction Different degrees of cracks. Through the cause of analysis and take appropriate measures to deal with the project passed the acceptance, has good application so far.