摘要
Abstract
The bottom slab and revetment of Guosui open channel in Letan Reservoir irrigation zone have collapsed twice in succession.Supplementary field investigation was conducted at the collapsed channel sections,based on which it was analyzed the collapse resulted from the problems of shallow karst and underground river.For the upper position of the collapsed channel section,the adopted treatment measure is casting integral reinforced concrete slab-beam structure.For the lower position of the collapsed channel section,the adopted measures include foundation treatment with cast-in-place pile,base steel mesh,backfilling with block stones,cotton wadding,crushed stone tamp-ing and filling,concrete plugs and concrete lining.The collapse problem of Guosui open channel is effectively solved.关键词
浅埋岩溶/地下暗河/明渠塌陷/整体式钢筋混凝土板梁结构/灌注桩/基础换填Key words
shallow karst/underground river/collapse of open channel/integral reinforced concrete slab-beam struc-ture/cast-in-place pile/foundation replacement分类
水利科学
