南宁市五化灌区马兰倒虹吸基础处理方案分析  

Analysis of foundation treatment scheme for Malan inverted siphon of Wuhua Irrigation Zone in Nanning City

作　　者：黄华丹 HUANG Hua-dan(Guangxi Guiyu Engineering Consultant Co.,Ltd.,Nanning 530023 China)

机构地区：[1]广西桂禹工程咨询有限公司,南宁530023

出　　处：《广西水利水电》2025年第1期35-38,共4页Guangxi Water Resources & Hydropower Engineering

摘　　要：南宁市五化灌区马兰倒虹吸场地岩溶强烈发育,存在溶洞、溶蚀凹槽、石芽及岩溶塌陷等岩溶地质现象,存在未探明的坑洞及基础承载力不足问题,为了确保箱涵及沉沙池基础的整体均衡性和稳定性,对沉沙池底板和箱涵基础筏板范围进行基础处理十分有必要,本文分析评价了马兰倒虹吸场地的工程地质情况,论述了基础换填和充填灌浆处理及施工导流的技术要求。Malan inverted siphon of Wuhua Irrigation Zone in Nanning City is located at a site where karst developed intensely,with the karst geological phenomena such as karst caves,corrosion grooves,sprouting and karst collapse etc.There are the problems of unexplored pits and insufficient foundation bearing capacity.In order to ensure the overall balance and stability of box culvert and sand tank foundation,it is necessary to carry out foundation treatment in the range of sand tank bottom plate and box culvert foundation raft plate.An analysis was made on the geological conditions of the Malan inverted siphon,based on which the author discussed the technical requirements for foundation replacement filling,backfill grouting treatment and construction diversion.

关 键 词：岩溶 承载力不足 基础处理 马兰倒虹吸 五化灌区 

分 类 号：TV672.5[水利工程—水利水电工程]