糯扎渡大坝心墙掺砾土料填筑施工工艺及方法

Filling construction technology and method for gravel soil core of Nuozhadu Rock-fill Dam with Core

糯扎渡大坝为心墙堆石坝,坝体基本剖面为中央直立心墙形式。针对坝体心墙掺砾土料施工工艺复杂,施工技术专业性强、受气候影响大、持续施工时间长等特点,通过合理备料、科学掺合等措施,确保了大坝心墙掺砾土料填筑的施工质量。

Nuozhadu Dam is a rock-fill dam with core, of which the basic profile is in a type of a central vertical core. In allusion to the characteristics such as the complicated construction technologies for the gravel soil core, higher requirement on the con- struction technique, greater impacts from climate during the construction and longer construction period etc. , the measures for reasonable preparation and scientifically mixing of the filling materials are taken, and then the quality of the filling construction of the gravel soil core is ensured.