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1.工程概况 浙江省江山市城中大桥横跨须江,桥梁全长为204.6m,桥面宽22m,为三跨不等跨的中承式钢管混凝土拱桥,共设2个桥墩,2个桥台。 2.工程地质条件 桥址座落于火山岩和石灰岩交界区域,其中西岸1＃桥台基底为石灰岩,岩溶发育强烈。 2.1岩土分层 1＃桥台桥址岩土分层情况如下: 上部有厚3.8～4.8m的杂填土;杂填土下为厚3.65～5.30m的砂土和卵砾
1. Project Overview Jiangshan City, Zhejiang Province across the river bridge, the bridge length of 204.6m, 22m wide bridge deck, is span of three span span CFST arch bridge, a total of two piers, two bridges station. 2. Engineering geological conditions Bridge site is located in the junction of volcanic rock and limestone, in which the West Bank 1 # abutment basement is limestone, karst developed strongly. 2.1 Geotechnical Stratification The geotechnical stratification of the bridge site in 1 # Qiaotai Bridge is as follows: There are 3.8 ~ 4.8m of miscellaneous fill in the upper part, and 3.65 ~ 5.30m of thick sand and gravel