论文部分内容阅读
1987年4月份,美国纽约州的斯科哈里河公路桥桥基为洪水冲刷,造成桥梁塌垮,多人丧生。通过对事故调查了解到: 1.斯科哈里河宽800m。公路桥于1955年10月建成,是一孔简支钢板梁,长162m,桥下河道宽100多米。桥两端都是填土路基。河床为淤积粉土、砂子和砾石,厚度最少有10m,下面有一层水河粘土,河床面下30～50m为石灰基岩。桥台采用扩大基础,尺寸25m×6m,四周抛石护基。基础深1.5m,顶面与河床面平。
In April 1987, the bridgehead of the Sikehari River Highway Bridge in New York State of the United States scoured the floodwater, causing the collapse of the bridge and the loss of many lives. Through the investigation of the accident: 1. The Si Khalili River 800m wide. The highway bridge was completed in October 1955. It is a simple-supported steel plate beam with a length of 162m and a width of more than 100 meters under the bridge. Both ends of the bridge are filled roadbed. The riverbed is silt silt, sand and gravel, with a minimum thickness of 10m. There is a layer of water river clay below it, and limestone is 30-50m below the riverbed. Abutment bridge to expand the basis of size 25m × 6m, surrounded by stone care base. The basic depth of 1.5m, the top of the plane with the river bed.