袖阀管注浆封闭截水施工技术.pdf

施工技术 2011年10月下 60 CONSTRUCTION TECHNOLOGY 第40卷第351期 袖阀管注浆封闭截水施工技术 霍小妹 (山西四建集团有限公司，山西太原030012) [摘要]针对太原市某住宅楼地下车库基坑工程在土方开挖中遇到涌水现象，经注浆技术比较，选用袖阀管注浆法 对土体进行固化止水.分析砂土中所注浆液的配合比和注浆压力，对注浆施工流程、机械选用、钻孔布置及钻孔、 浆液配制、下管和注浆施工等问题进行详细介绍，对注浆过程注意事项进行探讨.经加固的土体能满足施工要求. [关键词]地基；袖阀管；注浆；固化；施工技术 [中图分类号]TU753.3 [文献标识码]A[文章编号]1002-8498(2011)20-0060-02 Construction Technology of Water Truncation with Sleeve Valve Pipe Huo Xiaomei (China Shanxi Sijian Group Co. Ltd.Taiyuan Shanxi 030012 China) Abstract:Water gushes occurred during the foundation excavation construction of underground garage service building of some residential building in Taiyuan.After paring different grouting technologies grouting with sleeve valve pipe is selected to solidify the ground.Mix proportion and grouting pressure of slurry are analyzed.Problems during construction are introduced in detail such as construction process equipments selection holes arrangement and forming slurry making and grouting.Points for attention are discussed.By the reinforcement measures the soil properties can reach construction requirements and the water gushing is controlled. Key words:foundations;sleeve valve pipe;grouting;solidification;construction 1工程概况 2)袖阀管注浆基坑封闭截水技术是利用袖阀 新建南路家属院1号住宅楼地下车库工程位于管进行定深、定量、分序、分段、间歇、重复注浆的特 太原市迎泽大街警备区院内，长89.93m 宽40.6m 点，集中了劈裂注浆法、压（挤）密注浆法与渗入注 车库基底面积2594m2 地下车库基底为-10.50m 浆法的优点，达到封闭截水的目的. 基坑支护形式为帷幕桩、冠梁、喷错，基础形状为多 3施工工艺原理 边形，该工程场地西、北侧紧临原有建筑物，场地狭 通过对土体不同岩性地层由下往上进行注浆， 小.车库基坑止水帷幕、工程桩施工完毕，土方开挖 来达到加固土体的方法.施工过程中通过上下两个 时出现竖向突涌现...