武汉四环线吴家山至沌口段软土地基病害处置技术研究  

STUDY ON THE TECHNOLOGY FOR SOFT SOIL FOUNDATION DISEASE DISPOSAL IN WUJIASHAN TO ZHUANKOU SECTION OF FOURTH RING ROAD IN WUHAN

作　　者：黎华林[1] 周小雄[1] 向锐 郑志勇[1] LI Hua-in;ZHOU Xiao-xiong;XIANG Rui;ZHENG Zhi-yong(China Second Highway Survey and Design Institute,Co.,Ltd.,430056,Wuhan,China)

机构地区：[1]中交第二公路勘察设计研究院有限公司,武汉430056

出　　处：《建筑技术》2024年第10期1198-1201,共4页Architecture Technology

摘　　要：武汉四环线吴家山至沌口K81+700~K82+600段两侧鱼(藕)塘密布,软土较厚,地质条件差。软土地基经过清淤回填+土工格栅+碎石垫层+CFG桩方式初步治理后,发生路面裂缝等病害,主要是由于路基填土未得到有效压实、沉降,形成超静孔隙水压力,以及降雨丰沛和重载车辆频繁行驶造成的,因此采用了注浆加固路基+抛石挤淤+反压护坡道的方式对裂缝进行治理。治理监测结果和长期的通车运行表明,路面稳定、软土地基病害得到有效处置。There are a lot of fish(lotus)ponds on both sides of the K81+700 to K82+600 section between Wujiashan to Zhuankou of the Fourth Ring Road in Wuhan.This section features thick soft soil and poor geological conditions.After the preliminary treatment of the soft soil foundation by the means of desilting and backfill+geogrid+gravel cushion+CFG pile,road cracks and other diseases occur,mainly due to ineffective compaction and settlement of subgrade fill,excessive static pore water pressure,abundant rainfall and frequent passing of heavy-duty vehicles.Therefore,cracks were treated by grouting reinforcement of the subgrade+jackstone treatment+reverse pressure protection of the slope.Results of monitoring and long-term traffic after treatment show that the pavement is stable and the soft soil foundation diseases have been effectively disposed of.

关 键 词：软土地基 病害处置 路面裂缝 CFG桩 注浆加固 

分 类 号：TU74[建筑科学—建筑技术科学]