黄河特大桥主墩承台井点降水施工

摘要

包头至树林召高速公路黄河大桥主桥为85+6×150+85 m 的预应力连续箱梁，7个主墩，除22#、23#墩位于黄河主河槽，20#、21#、24#、25#、26#墩承台位于黄河滩地。由于黄河水位较高，采用轻型井点降水配合管井降水，进行干处基坑开挖施工。%The Yel ow River Bridge on Baotou to Shulinzhao highway is made by prestressed concrete continuous box gird-er of 85+6*150+85 m, 7 main piers, except 22#, 23# pier is l-ocated in the main channel of the Yellow River, 20#, 21#, 24#, 25#, 26# pier is located in the Yel ow River beach. Becau-se of the level of the Yel ow River water is higher, take the me-thod of light well point precipitation and dewatering, to carry on the excavation of foundation pit on dry place.