2011年1月 施工技术 第40卷第2期 CONSTRUCTION TECHNOLOGY 5 南京德基广场穿土嵌岩地下连续墙施工技术 刘春安，廖秋林，曾志献，曾广桃，何玉红 (1.北京城建集团建筑工程慈永包部，北京100088：2.江西省地质工程公司，江南品331000) [摇要]基于南京德基广场二期工程地下连谈墙工，选了超深逆作法穿土嵌岩地下连的施工技术和关腿 质量控技术.结舍地地层特点与作法施工特点，从穿土我通岩的成槽方法、超长钢筋笼皮作理件利 作与吊装、槽望接头防海港施、成槽垂直度与槽沉清拉制等多方面进行技术攻美.施工实践素明，行对性选用土 层和岩居成槽设备解决了超深穿软土我通岩的成槽难题：采用逆作预埋件定位、成槽超声波仪委直度格测、柔性图 形锁管头旋喷结含、电和仪槽底沉津国庭粉测后压浆等描，既保证了体质蛋，又满足了逆作法工要 求，起到了防水、指土作用地下室外的功能. [关键词]逆作法：地下连谈墙：后压：柔性圆形锁口管：预理件 [中图分类号]TU476.4 [文献标识]A [文章编号]1002-8498(2011)02-0005-04 Construction Technology for Diaphragm Wall Crossing Soft Soil and Imbedding Rock in Nanjing Deji Plaza Liu Chun'an' Liao Qiulin' Zeng Zhixian' Zeng Guangtao' He Yuhong (1.Engineering Contract Department Beijing Urban Construction Group Co.Ltd.Beijing 100088 China: 2.Jiangxi Geo-e Engineering(Group)Corporation Nanchang Jiangxi 331000 China) Abstract:Diaphragm wall is used in second stage of Nanjing Deji Plaza.According to this project technologies for super-deep reverse diaphragm wall crossing soft soil and imbedding rock and key quality control are introduced.Combined with charaeteristics of layers and reverse construction method key technical problems were researehed in all directions including grooving method of erossing soft soil and imbedding rock fabrication and lifting of over length steel reinforcement cage and embedded part anti- seepage measures for slotted line joint controlling of grooving verticality and sediment etc.Engineering practices show that the targeted grooving equipments solve difficu...
南京德基广场穿土嵌岩地下连续墙施工技术.pdf
