论文部分内容阅读
横山坝是一座高48.6m的粘土心墙砂卵石坝,坝坡陡(1:1.8～1:2.1),心墙窄(高宽比为0.26),标准断面如图1。在横山坝埋设了坝面沉降位移测点12个,心墙分层沉降管两根,土压力测头13个(已损坏3个),孔隙水压力测头3个(已损坏一个),坝基测压管10根。大坝于1966年4月建成,投入运用已近18年,效益显著,并取得了大量的原体观测数据。在运用期,已在心墙表层发现纵向和横向裂缝,而心墙内部是否有危险的裂缝一直是人们关心的问题。浙江水利厅及南京水利科学研究所的有关同志曾对横山坝的设计、
Yokoyama dam is a 48.6m clay core wall sand and gravel dam with a steep slope (1: 1.8-1: 2.1) and a narrow heart wall (aspect ratio: 0.26). The standard cross section is shown in Fig.1. In Hengshan dam buried 12 settlement points of the dam surface measurement, the heart of the two sub-settlement tubes, earth pressure probe 13 (damaged 3), pore pressure probe 3 (damaged one), the dam foundation Pressure pipe 10. The dam was completed in April 1966 and has been in operation for nearly 18 years with significant benefits and a large amount of raw body observation data have been obtained. During the period of application, longitudinal and transverse cracks have been found in the surface of the heart wall, and whether there are dangerous cracks in the heart wall has been a concern of people. Zhejiang Water Conservancy Department and Nanjing Institute of Hydraulic Research comrades had Yokoyama dam design,