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1 大坝土方填筑施工技术保证措施填筑上料时应严格控制含水量,在碾压试验所确定的范围之内,防止产生剪切破坏和弹簧。自卸车运送土料在坝面上的行车应采用倒进法,路线应分散,不易集中,避免产生剪力破坏。进入坝面的人口处,每层都应先铺上虚土,该层铺完后,若路口有剪砌破坏,应挖除换土。碾压采用进退错距的开行方式,为避免漏压,在碾压带的一侧应先往复压够遍数后再进行错距碾压,待压至另一侧时,仍需往复压够遍数,错距碾压要求一定搭接,其错距宽度为
1 Dam earthwork filling construction technology assurance measures Filling materials should be strictly controlled moisture content, determined by the rolling test within the scope to prevent shear damage and spring. Dump truck transport of soil in the dam surface of the traffic should be used into the law, the route should be scattered, not easy to concentrate, to avoid shear damage. Entrance to the population of the dam surface, each layer should be laid on the virtual soil, the layer shop, if the intersection of shear damage, should dig and replace the soil. Rolling with the advancing and retreating the wrong way to open, in order to avoid leakage pressure, the side of the roller should be repeated before the pressure to the number of times before rolling the wrong distance to be pressed to the other side, still need to reciprocate pressure enough The number of times, a certain distance required to lap rolling lap, the width of the wrong distance