论文部分内容阅读
1 工程概况及水土流失防治责任范围1.1 工程概况河南省驻马店至信阳高速公路(简称驻信高速)是北京至珠海国道主干线的组成部分,北起驻马店,南至信阳九里关(省界),全长133.99km,初设批复工程总投资36.08亿元。分南北两段:北段从驻马店至信阳312国道,长95.73km,路基宽度28m,双向四车道,设计行车速度120km/h,经挖填平衡后需借土方1138.1万m~3,无弃土方;南段从信阳312国道至九里关,长38.26km,路基宽度26m,双向四车道,经挖填平衡后需借土方15万m~3,弃土方272.4万m~3。路线经过区域均属淮河水系,北段线路位于黄淮河平原区和丘陵区,南段线路大部位于大别山山区,地形急剧起伏。1.2 水土流失防治责任范围的确定
1 Project Overview and Scope of Soil and Water Loss Prevention and Control 1.1 Project Overview Henan Zhumadian-Xinyang Expressway (hereinafter referred to as “Expressway”) is an integral part of the main road from Beijing to Zhuhai National Highways. From Zhumadian in the north to Jiuyuliguan (provincial boundary) in Xinyang, The total length of 133.99km, initial approval of the project a total investment of 3.608 billion yuan. It is divided into North and South sections. The northern section stretches from Zhumadian to Xinyang No.312 State Road with a length of 95.73km and a width of 28m. The two-way four-lane roadway is designed with a speed of 120km / h. After excavation and filling, the earthwork needs to be 11,381,000 m 3, ; The southern section from 312 State Road Xinyang to Jiuliguan, 38.26km long, width of 26m embankment, two-way four lanes, after excavation and filling by the need to earth 150000 m ~ 3, spoil 2742000 m ~ 3. The route passes through the Huaihe River system. The northern section of the route is located in the Huang-Huai River plain and hilly area. Most of the southern section of the route is located in the mountainous area of Dabie Mountain with steep terrain. 1.2 Soil and water loss control responsibility to determine the scope