锁脚锚管受力分析的双参数弹性地基梁模型

doi:10.13722/j.cnki.jrme.2015.1011

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (669 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To avoid the weakness of the Winkler beam model on elastic foundation，a two-parameter foundation model of Pasternak reflecting the continuity of the foundation was applied in the analysis of the feet-lock pipe combined with steel arch. The formulae to calculate the deflection，shear force，bending moment and foundation reaction of feet-lock pipes were derived using the theory of structural analysis and beam on elastic foundation under the consideration of the compatibility of deformation and load transfer between the feet-lock pipe and steel arch. The influence of subgrade coefficient and shear stiffness of the foundation on the mechanical behaviors of feet-lock pipe was investigated through examples and comparison with the Winkler model. It was found that the smaller subgrade coefficient resulted in the larger difference of two models of feet-lock pipe regarding values shear force，bending moment and foundation reaction. The double parameter model produced a lager foundation reaction and smaller distribution range，and the foundation reaction mainly concentrated in the region near the near-end of the feet-lock pipe. The tunnel settlement was less than that calculated from the Winkler model. Finally，it was suggested that the designed length of the feet-lock pipe should be reduced and its diameter should be increased reasonably so as to obtain the desired supporting effect.

Key words： tunnelling engineering feet-lock pipe steel arch Pasternak model Winkler model

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Lijun
	ZHANG Yunliang

Cite this article:

CHEN Lijun,ZHANG Yunliang. Double parameters elastic foundation beam model of feet-lock pipes[J]. , 2016, 35(5): 989-999.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2015.1011 OR https://rockmech.whrsm.ac.cn/EN/Y2016/V35/I5/989

[1] 王梦恕. 中国隧道及地下工程修建技术[M]. 北京：人民交通出版社，2010：1–924.(WANG Mengshu. Tunnelling and underground engineering technology in China[M]. Beijing：China Communications Press，2010：1–924.(in Chinese))
[2] 陈建勋. 软弱地层隧道初期支护技术——钢架喷网锁脚锚杆组合结构[M]. 北京：科学出版社，2011：1–117.(CHEN Jianxun. Tunnel support structure made up of steel frame and shotcrete and steel mesh and feet-lock rock bolt[M]. Beijing：Science Press，2011：1–117.(in Chinese))
[3] 丁维利，赵永明，初厚永，等. 浅埋大断面黄土隧道下穿既有铁路施工技术[J]. 现代隧道技术，2008，45(6)：76–81.(DING Weili，ZHAO Yongming，CHU Houyong，et al. Technology for a shallow large profile loess tunnel to underpass existing railway[J]. Modern Tunnelling Technology，2008，45(6)：76–81.(in Chinese))
[4] 李广慧. 软弱围岩隧道控变防坍技术浅析[J]. 铁道建筑技术，2012，(4)：55–59.(LI Guanghui. Tunnels in weak surrounding rock control collapse prevention technology[J]. Railway Construction Technology，2012，(4)：55–59.(in Chinese))
[5] 邓伯科. 雁门关隧道富水段软弱围岩初期支护开裂变形控制技术[J]. 铁道标准设计，2013，(1)：97–100.(DENG Boke. Control technology on cracking and deformation of primary support in soft and weak surrounding rocks of water-rich section of Yanmenguan tunnel[J]. Railway Standard Design，2013，(1)：97–100.(in Chinese))
[6] 周宇. 锁脚锚管和仰拱注浆对控制大断面海底隧道位移的有效性分析[J]. 岩石力学与工程学报，2007，26(增2)：3 830–3 834. (ZHOU Yu. Validity analysis of locking anchor pipe and grouting in inverted arch for displacement control of large-section subsea tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.2)：3 830–3 834.(in Chinese))
[7] 曾超. 大断面海底隧道异常变形控制措施研究[J]. 岩石力学与工程学报，2007，26(11)：2 170–2 175.(ZENG Chao. Study on abnormal deformation controlling measures for large cross-section subsea tunnel[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(11)：2 170–2 175.(in Chinese))
[8] 魏龙海，王明年，赵东平，等. 翔安海底公路隧道陆域段变形控制措施研究[J]. 岩土力学，2010，31(2)：577–581.(WEI Longhai，WANG Mingnian，ZHAO Dongping，et al. Study of deformation controlling measures for large-span shallow tunnel[J]. Rock and Soil Mechanics，2010，31(2)：577–581.(in Chinese))
[9] 马涛. 隧道工程饱水充填型溶洞处理技术研究[J]. 铁道工程学报，2010，(6)：74–78.(MA Tao. Research on treatment technology for karst cave with abundant ground water in tunnel engineering[J]. Journal of Railway Engineering Society，2010，(6)：74–78.(in Chinese))
[10] 史赵鹏. 朔州隧道塌陷下沉侵限段支护处治施工技术[J]. 铁道标准设计，2014，58(6)：120–124.(SHI Zhaopeng. Construction technology for abnormal phenomena treatment of Shuozhou tunnel including collapse，subsidence and exceeding clearance limit[J]. Railway Standard Design，2014，58(6)：120–124.(in Chinese))
[11] 黄明琦. 锁脚锚杆作用机制及其在厦门翔安隧道中的应用研究[J]. 铁道建筑技术，2009，(7)：86–89.(HUANG Mingqi. Feet-lock bolt mechanism and its application in Xiamen Xiang?an tunnel[J]. Railway Construction Technology，2009，(7)：86–89.(in Chinese))
[12] 邓国华，邵生俊，陶虎，等. 锁脚锚管对土质隧道围岩变形和支护内力的影响研究[J]. 土木工程学报，2010，43(1)：108–113.(DENG Guohua，SHAO Shengjun，TAO Hu，et al. A study of the effects of locking tremies on the internal force of tunnel support and the deformation of surrounding soil[J]. China Civil Engineering Journal，2010，43(1)：108–113.(in Chinese))
[13] 陶虎，于品清. 黄土地区隧道锁脚锚管作用机制分析研究[J]. 人民长江，2011，42(17)：47–50.(TAO Hu，YU Pinqing. Mechanical analysis for locking pin of anchor pipe of tunnel construction in loess area[J]. Yangtze River，2011，42(17)：47–50.(in Chinese))
[14] 张涛. 软弱围岩隧道锁脚锚杆(管)支护特性研究[硕士学位论文][D]. 西安：长安大学，2011.(ZHANG Tao. Study on supporting characteristic of tunnel feet-lock bolt(pipe) in weak surrounding rock[M. S. Thesis][D]. Xi?an：Chang?an University，2011.(in Chinese))
[15] 仲崇海. 软弱围岩大断面隧道台阶法施工技术参数研究[硕士学位论文][D]. 北京：北京交通大学，2014.(ZHONG Chonghai. The parameters research of large cross-section tunnel in weak rock with bench construction method[M. S. Thesis][D]. Beijing：Beijing Jiaotong University，2014.(in Chinese))
[16] 伍毅敏，吕康成，徐岳. 软弱地基隧道锁脚钢管承载特性研究[J]. 岩土工程学报，2009，31(12)：1 825–1 832.(WU Yimin，LU Kangcheng，XU Yue. Bearing behaviors of steel foot pipes for tunnels in soft foundation[J]. Chinese Journal of Geotechnical Engineering，2009，31(12)：1 825–1 832.(in Chinese))
[17] 谭勇，施成华，彭立敏，等. 浅埋暗挖软基隧道分部开挖拱脚地基承载力研究[J]. 铁道标准设计，2015，59(2)：76–81.(TAN Yong，SHI Chenghua，PENG Limin，et al. Study on the bearing capacity at arch toot of shallow buried soft base tunnel with partial excavation[J]. Railway Standard Design，2015，59(2)：76–81.(in Chinese))
[18] 罗彦斌，陈建勋. 软弱围岩隧道锁脚锚杆受力特性及其力学计算模型[J]. 岩土工程学报，2013，35(8)：1 519–1 525.(LUO Yanbin，CHEN Jianxun. Mechanical characteristics and mechanical calculation model of tunnel feet-lock bolt in weak surrounding rock[J]. Chinese Journal of Geotechnical Engineering，2013，35(8)：1 519–1 525.(in Chinese))
[19] 陈丽俊，张运良，马震岳. 锁脚锚管合理打设角度的理论研究[J]. 岩石力学与工程学报，2015，34(7)：1 334–1 344.(CHEN Lijun，ZHANG Yunliang，MA Zhenyue. Theoretical research on reasonable installation angle of feet-lock pipes[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(7)：1 334–1 344.(in Chinese))
[20] 黄义，何芳社. 弹性地基上的梁、板、壳[M]. 北京：科学出版社，2005：1–181.(HUANG Yi，HE Fangshe. Beam，plate and shell on elastic foundation[M]. Beijing：Science Press，2005：1–181.(in Chinese))
[21] 郝玉强，赵东平. 山岭隧道洞口施工技术优化探讨[J]. 现代隧道技术，2012，49(增)：47–51.(HAO Yuqiang，ZHAO Dongping. Discussion on optimization of construction technology for mountain tunnel portals[J]. Modern Tunnelling Technology，2012，49(Supp.)：47–51.(in Chinese))
[22] 中华人民共和国行业标准编写组. JTG/T D70—2010公路隧道设计细则[S]. 北京：人民交通出版社，2010.(The Professional Standards Compilation Group of the People′s Republic of China. JTG/T D70—2010 Guidelines for design of highway tunnel[S]. Beijing：China Communications Press，2010.(in Chinese))
[23] 中华人民共和国行业标准编写组. JTG D70—2004公路隧道设计规范[S]. 北京：人民交通出版社，2004.(The Professional Standards Compilation Group of the People′s Republic of China. JTG D70—2004 Code for design of road tunnel[S]. Beijing：China Communications Press，2004.(in Chinese))