论文部分内容阅读
一、概述王圪堵水库位于陕北横山县境内无定河上游,由于地处沙拉乌素沙漠边沿,当地仅有细砂料可供筑坝。多年来当地群众在党的正确领导下,利用水力拉砂造田、筑坝使农业生产面貌发生了很大变化。水力拉砂筑坝不仅设备简单,成本低、省劳力;而且由于砂土脱水固结快,有着工效高,质量好等优点。大量工程实践证明,水力拉砂是一个多快好省的筑坝方法。王圪堵水库大坝高38米,总方量约600万立方米,可利用左岸80米高的砂体进行拉砂冲填,其坝体代表性横剖面如图1。但由于坝坡比较平缓,蓄水后浸润线位置高,大部分坝体
I. Overview Wang Yu Block Reservoir is located in the upper reaches of the Wuding River in Hengshan County in northern Shaanxi. Due to its location on the edge of the Saratoga Desert, there is only fine sand material available for dam construction. For many years, under the correct leadership of the Party, the local people have made great changes in the appearance of agricultural production through the use of hydraulic power to make land and build dams. Hydraulic lapping and dam construction not only has simple equipment, low cost and labor, but also has the advantages of high efficiency and good quality due to quick consolidation and consolidation of sandy soil. A large number of engineering practices have proven that hydraulic sand-drawing is a more rapid method of dam construction. The Wangyaokou Reservoir Dam is 38 meters high and has a total capacity of about 6 million cubic meters. It can use the sand body with a height of 80 meters on the left bank to carry out sandfilling. The representative cross section of the dam is shown in Figure 1. However, due to the relatively gentle slopes and the high saturation line after impoundment, most dams