Effect of Rock Mass Shear Dilatancy on the Ultimate Axial Capacity of Tunnel Anchorage

›› 2015, Vol. 29 ›› Issue (6): 72-74.

Previous Articles Next Articles

Effect of Rock Mass Shear Dilatancy on the Ultimate Axial Capacity of Tunnel Anchorage

XIA Guobang1， ZHANG Shuihua1, DENG Qin2

(1. Puxuan Expressway Project Office, Yunan Highway Development & Investment Co. Ltd., Kunming 650200;
2. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071）

Received:2015-10-13 Online:2015-12-22 Published:2015-12-30

Abstract

Abstract: The effect of the dilatant angle on the ultimate axial uplift capacity of the tunnel anchorage is analyzed by the finite element method (FEM) with overloading. The results indicate that, the anchorage zone of influence in the rock mass increases with the value of the shear dilatant angle. The axial uplift capacity difference could be twice of the magnitude with different shear dialatant angles. It is recommended that the shear dilatancy should be appropriately considered in the estimation of the ultimate axial uplift capacity of the tunnel anchorage.

Key words: Dilatant Angle, Ultimate Axial Uplift Capacity, Overloading, Anchorage, Finite Element Method

XIA Guobang1， ZHANG Shuihua1, DENG Qin2. Effect of Rock Mass Shear Dilatancy on the Ultimate Axial Capacity of Tunnel Anchorage[J]. , 2015, 29(6): 72-74.

[1]	ZHAO Xing. Analysis of Deep Excavation Influence on the Nearby Operating Metro [J]. Soil Engineering and Foundation, 2025, 39(1): 78-85.
[2]	LI Haining. Integral Stability Analysis of a Slag Yard High Slope [J]. Soil Engineering and Foundation, 2024, 38(4): 600-603.
[3]	WANG Zhi, WU Yang, ZHU Xianfa, Li Yingjie, ZHAO Sensen. Finite Element Simulation of the Sand Internal Erosion Considering Erosion-Mechanical Coupling [J]. Soil Engineering and Foundation, 2024, 38(3): 459-464.
[4]	GAO Wenda, CHEN Hang, CHENG Yonghui, JIANG Jiwei, HE Yilin, LI Jingxi. Experimental Study on the Shear Characteristics of a Mechanical Bolt-Surrounding Rock Interface [J]. Soil Engineering and Foundation, 2024, 38(3): 557-561.
[5]	KUANG Wenzhuang, SHAO Jin, ZHANG Yufeng, WU Yuliang, JIANG Shanchao. Numerical Simulation of Both Long and Short Piles in the Deep Excavation in Soft Soils [J]. Soil Engineering and Foundation, 2023, 37(6): 856-860.
[6]	LIU Yi, XU Mingjun, YANG Qin. Optimal Design of the Steel Tie Rods Considering the Influence of Settlement [J]. Soil Engineering and Foundation, 2022, 36(5): 692-695.
[7]	KONG Zhuangzhuang, SHEN Zhicong, CHEN Qiang, LI Yanlong, SUN Jianye, ZHAO Zhichao, WANG Dong. Numerical Simulation of Cone Penetration Tests in Hydrate Bearing Sand [J]. Soil Engineering and Foundation, 2022, 36(3): 400-405.
[8]	HUANG Liang. Slope Stability Analysis Using Three-Dimensional Nonlinear Approach [J]. Soil Engineering and Foundation, 2022, 36(1): 42-46.
[9]	CAO Jinchun, MENG Lingfeng, ZHANG Benke. Landslide Along River Levee under Heavy Precipitations [J]. Soil Engineering and Foundation, 2021, 35(4): 472-475.
[10]	XI Lingzhi, YANG Yu, XIONG Song, XIN Weiming. Analysis of Factors Affecting Backfill Settlement of a Cut and Cover Tunnel [J]. Soil Engineering and Foundation, 2021, 35(3): 263-267.
[11]	MA Ning. Stability Analysis of Cut Slope Improved by Anti-Sliding Caissons [J]. Soil Engineering and Foundation, 2021, 35(2): 144-147.
[12]	LI Wei. Numerical Analysis of Seismic Stability of Rock Slopes Using Finite Element Method [J]. Soil Engineering and Foundation, 2021, 35(1): 30-33.
[13]	WANG Bo, XIE Zhiying, XIAO Wei, CAO Fang, XIAO Taoli. A Study on the Deformation Characteristics of the Double-row Pile Support Structure under Eccentric Load [J]. Soil Engineering and Foundation, 2021, 35(1): 50-54.
[14]	QIU Liqiu. Rock Mass Stability Monitoring and Supporting Optimization of Highway Tunnel Excavation or Expansion [J]. , 2019, 33(3): 264-267.
[15]	YU Song, LI Guangyao. Engineering Geological Characteristics of Rock Mass Reinforced with Rock Anchors Through Comprehensive Investigation Methods [J]. , 2019, 33(1): 91-94.

Effect of Rock Mass Shear Dilatancy on the Ultimate Axial Capacity of Tunnel Anchorage

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments