Key technology of trench construction of super-deep T-shape pile wall for quay in complicated stratum
-
摘要: 超深 T 形桩墙在高水位的深厚软弱土层情况下成槽施工时,需要解决槽壁易坍塌及确保槽孔垂直精度大于 1/300 等两个重大技术难题。以埃及塞得东港集装箱码头二期工程 T 形桩墙施工为依托,对这两个重大技术难题的解决方法进行了研究,包括成槽设备选型以及槽壁预加固、导墙施工、泥浆制备、槽孔开挖等关键施工工艺和控制措施。结果证明,超深 T 形桩墙的槽孔垂直精度高、没有塌孔现象,成槽时间较短,成本低,能够保证工程质量,取得了良好的社会效益和经济效益。Abstract: In trench construction of super-deep T-shape pile walls in deep-weak soil layers high water level, with groove walls easy to collapse and vertical resolution of more than 1/300 are two technical issues to solve. Based on construction of T-shape pile walls for Port Said East Container Terminal-Phase 2 Marine Works in Egypt, solutions to the two technical puzzles are studied. The key construction technologies include selection of trench equipments, advance reinforcement of groove walls, construction of guide wall, production of slurry, and excavation of trench. The results show that the vertical resobution of super-deep T-shape pile walls is high without hole collapse. The trench can be finished with short time, low cost and good quality, and good social and economical benefits are gained.
-
[1] JTJ 303 — 2003 港口工程地下连续墙结构设计与施工规程 [S]. 北京 : 人民交通出版社 , 2003. (JTJ 303 — 2003 Design and construction technical code for diaphragm wall structure of port engineering[S]. Beijing: China Communications Press, 2003. (in Chinese)) [2] 郑 宏 , 傅金栋 , 宋 凯 , 等 . 天津滨海新区 61 m 深异形地下连续墙施工技术 [J]. 施工技术 , 2010(10): 20 – 23. (ZHENG Hong, FU Jin-dong, SONG Kai, et al. Construction technology of 61m-deep and special-shaped diaphragm wall in Tianjin Binhai New Area[J]. Construction Technology, 2010(10): 20 – 23. (in Chinese)) [3] 张厚美 , 夏明耀 . 地下连续墙泥浆槽壁稳定的三维分析 [J]. 土木工程学报 , 2000(1): 73 – 76. (ZHANG Hou-mei, XIA Ming-yao. 3D stability analysis of slurry trenches[J]. China Civil Engineering Journal, 2000(1): 73 – 76. (in Chinese)) [4] 李 赞 . 深圳地铁田贝站入岩地下连续墙施工技术 [J]. 施工技术 , 2010(1): 50 – 51. (LI Zan. Construction technology of rock-socked diaphragm wall in Tianbei Station of Shenzhen Metro[J]. Construction Technology, 2010(1): 50 – 51. (in Chinese)) -
期刊类型引用(8)
1. 梅君，王勇，梁宸. 地铁盾构水土中接收对封堵墙扰动作用的研究. 科技通报. 2024(11): 57-62 . 
百度学术
2. 焦月红，万治安，顾佳伟，王寿鹤，周游，王勇，张跃曦. 装配式钢板箱水土中接收监测分析. 建设科技. 2024(S1): 199-202 . 百度学术
3. 胡永利，路林海，刘家海. 富水敏感区既有地铁站盾构接收控水技术研究. 建筑技术. 2023(01): 100-102 . 百度学术
4. 彭远胜，欧孝夺，姬凤玲. 铝土尾矿泡沫轻质土单轴抗压力学特性及唯象本构模型. 应用基础与工程科学学报. 2023(03): 675-689 . 百度学术
5. 冯红喜，闫文博，朱昕阳，高腾达. 穿黄隧道超大直径盾构接收关键技术研究. 人民黄河. 2023(S1): 127-128+130 . 百度学术
6. 孙伟，王兆民，牛宇哲，杨星，杨志勇，江玉生. 北京地铁8号线泥水盾构接收端洞门受力计算及支撑分析. 科技和产业. 2023(23): 249-254 . 百度学术
7. 彭远胜，欧孝夺，姬凤玲. 铝土尾矿泡沫轻质土的物理力学性能及细观特征. 材料导报. 2022(17): 128-133 . 百度学术
8. 冯红喜，李一博，张忠炎. 水平注浆加固与钢套筒在盾构接收的应用分析. 山西建筑. 2022(19): 136-138 . 百度学术
其他类型引用(3)
计量
- 文章访问数: 1088
- HTML全文浏览量: 1
- PDF下载量: 600
- 被引次数: 11
下载:
