关于结构分割转换工法不同分割方式的探讨
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摘要
为研究结构分割转换工法(CC工法)中不同结构分割方式对设计、施工的影响,丰富CC工法的相关研究,首先对CC工法跨中设缝和柱顶设缝2种典型分割方式相应的结构体系、受力特性进行分析和比较,并采用数值分析的方法,研究2种分割方式下不同节点位置和节点性质对结构受力的影响。然后对施工环节2种不同分割方式施工步序、节点施工质量控制、经济状况进行分析比较。结果表明:1)柱顶设缝时,节点的设计、施工较为困难,施工措施费较高; 2)跨中设缝时,节点处理较为简单,经济优势较为突出,但跨中节点的性质在设计时较难把握,宜视构造特点具体考虑。
In order to study the influence of structural cut and convert(CC) method on design and construction under different structure division methods, and rich the relevant research of CC method, the structural system and mechanical properties corresponding to two different structure division methods, i.e. joint in mid-span and joint on column top, are analyzed and compared; and furthermore, the influence of the joint positions and properties of the two structure division methods on the structure are numerically analyzed. And then comparison is made between the two structure division methods in terms of construction sequence, joint construction quality control and economic indicators. The research results show that:(1) When the joint is set on column top, the design and construction are difficult and the construction cost is high.(2) When the joint is set in mid-span, the design and construction are applicable, whereas the properties of joint is difficult to control, which should be considered cautiously.
In order to study the influence of structural cut and convert(CC) method on design and construction under different structure division methods, and rich the relevant research of CC method, the structural system and mechanical properties corresponding to two different structure division methods, i.e. joint in mid-span and joint on column top, are analyzed and compared; and furthermore, the influence of the joint positions and properties of the two structure division methods on the structure are numerically analyzed. And then comparison is made between the two structure division methods in terms of construction sequence, joint construction quality control and economic indicators. The research results show that:(1) When the joint is set on column top, the design and construction are difficult and the construction cost is high.(2) When the joint is set in mid-span, the design and construction are applicable, whereas the properties of joint is difficult to control, which should be considered cautiously.
引文
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[13] 伊贺崎圭, 高仓克彦, 川北润. 口琴工艺止水技术开发: 大埋深富水底层的口琴工法应用[J]. Construction Machinery & Equipment, 2012, 48(4): 27. IGAZAKI Kei, KATSUHIKO Takakura, KAWAKITA Jun. Development of stagnant water technology of a harmonica method of construction: Harmonica method of construction in great depths [J]. Construction Machinery & Equipment, 2012, 48(4): 27.
[14] 高毅, 冯超元, 程鹏. 浅埋矩形顶管的“整体背土效应”研究[J]. 岩土工程学报, 2018, 40(10): 1936. GAO Yi, FENG Chaoyuan, CHENG Peng. Study of the "overall-carrying-soil effect" of shallow buried rectangular pipe jacking[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1936.
[15] 李建斌, 高毅, 李洋, 等. 一种矩形及类矩形断面地下工程机械分部暗挖建造方法: ZL201610200240.5[P].2016-07-20[2018-06-20]. LI Jianbin, GAO Yi, LI Yang, et al. Construction method of rectangular section underground construction excavation by mechanical division: ZL201610200240.5[P]. 2016-07-20[2018-06-20].
[2] 王梦恕. 中国铁路、隧道与地下空间发展概况[J]. 隧道建设, 2010, 30(4): 351. WANG Mengshu. An overview of development of railways, tunnels and underground works in China [J]. Tunnel Construction, 2010, 30(4): 351.
[3] 洪开荣. 我国隧道及地下工程发展现状与展望[J]. 隧道建设, 2015, 35(2): 95. HONG Kairong. State-of-art and prospect of tunnels and underground works in China [J]. Tunnel Construction, 2015, 35(2): 95.
[4] 王梦恕. 北京地铁浅埋暗挖施工法[J]. 岩石力学与工程学报, 1989, 8(1): 52.WANG Mengshu. The boring excavation method and construction in Beijing Metro[J]. Chinese Journal of Rock Mechanics and Engineering, 1989, 8(1): 52.
[5] 王梦恕. 浅埋暗挖法设计、施工问题新探[J]. 隧道建设, 1992(2): 1. WANG Mengshu. An investigation on design and construction of shallow cover underground excavation[J]. Tunnel Construction, 1992(2): 1.
[6] 王梦恕. 中国盾构和掘进机隧道技术现状、存在的问题及发展思路[J]. 隧道建设, 2014, 34(3): 179. WANG Mengshu. Tunneling by TBM/shield in China: State-of-art, problems and proposals[J]. Tunnel Construction, 2014, 34(3): 179.
[7] 彭立敏, 王哲, 叶艺超, 等. 矩形顶管技术发展与研究现状[J]. 隧道建设, 2015, 35(1): 1. PENG Limin, WANG Zhe, YE Yichao, et al. Technological development and research status of rectangular pipe jacking method[J]. Tunnel Construction, 2015, 35(1): 1.
[8] 荣亮, 杨红军. 郑州市下穿中州大道超大断面矩形顶管隧道施工沉降控制技术[J]. 隧道建设, 2015, 35(增刊2): 1338.RONG Liang, YANG Hongjun. Settlement control technology for tunnel crossing underneath Zhongzhou Avenue in Zhengzhou constructed by super-large rectangular cross-section pipe-jacking machine[J] Tunnel Construction, 2015, 35(S2): 1338.
[9] 杨红军, 荣亮, 徐虎城. 超大断面矩形顶管减阻技术在郑州市下穿中州大道隧道工程中的应用[J]. 隧道建设, 2016, 36(4): 458.YANG Hongjun, RONG Liang, XU Hucheng. Application of drag reduction technology to extra-large cross-sectional rectangular pipe jacking: Case study of tunnel crossing underneath Zhongzhou Road in Zhengzhou [J]. Tunnel Construction, 2016, 36(4): 458.
[10] 佐藤拓也, 皆川康博, 古川範夫. HEP & JES工法の施工について[J]. Structural Engineering Data, 2000, 11(15): 96.SATO Takuya, MINAGAWA Yasuhiro, FURUKAWA Norio. HEP & JES construction method[J]. Structural Engineering Data, 2000, 11(15): 96.
[11] 清水満, 渡邊明之, 千葉敬介. 線路下横断工法における機械施工の取り組み: HEP & JES工法の事例(特集道路鉄道工事用機械)[J]. Construction Machinery & Equipment, 2003, 39(5): 6.SHIMIZU Men, WATANABE Toshiyuki, CHIBA Keisuke. Mechanical construction of railway undercrossing works: HEP & JES examples of engineering methods (railway engineering special)[J]. Construction Machinery & Equipment, 2003, 39(5): 6.
[12] 大久保也, 武田申儿, 山田纪之. 大断面分割盾构工法: 口琴工法[J]. 施工方案, 2008(699): 65.HIDEYA Okubo, TAKEDA Shinji, NORIYUKI Yamada. Large section division shield method: Harmonica method of construction[J]. Building Plan of Construction, 2008(699): 65.
[13] 伊贺崎圭, 高仓克彦, 川北润. 口琴工艺止水技术开发: 大埋深富水底层的口琴工法应用[J]. Construction Machinery & Equipment, 2012, 48(4): 27. IGAZAKI Kei, KATSUHIKO Takakura, KAWAKITA Jun. Development of stagnant water technology of a harmonica method of construction: Harmonica method of construction in great depths [J]. Construction Machinery & Equipment, 2012, 48(4): 27.
[14] 高毅, 冯超元, 程鹏. 浅埋矩形顶管的“整体背土效应”研究[J]. 岩土工程学报, 2018, 40(10): 1936. GAO Yi, FENG Chaoyuan, CHENG Peng. Study of the "overall-carrying-soil effect" of shallow buried rectangular pipe jacking[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(10): 1936.
[15] 李建斌, 高毅, 李洋, 等. 一种矩形及类矩形断面地下工程机械分部暗挖建造方法: ZL201610200240.5[P].2016-07-20[2018-06-20]. LI Jianbin, GAO Yi, LI Yang, et al. Construction method of rectangular section underground construction excavation by mechanical division: ZL201610200240.5[P]. 2016-07-20[2018-06-20].