Abstract
In the process of long-distance and large-diameter pipe jacking, thixotropic mud is generally injected into the outer surface of the pipe wall to reduce the frictional resistance between the pipe and the soil. The process of pipe jacking may be stopped due to various reasons such as pipe rupture and equipment damage. When the pipe is restarted after being stopped for a period of time, the interface mechanical properties usually change substantially, resulting in a substantial increase in frictional resistance compared to before the stop. However, the mechanical properties and shear mechanism of the pipe-soil interface after jacking is restarted have not been sufficiently investigated. In this paper, a series of gravelly sand-concrete direct shear tests are carried out, in which lubricant is injected into the interface between gravelly sand and concrete, and the effect of construction stagnation time is considered. The mechanical properties of the interface when the concrete pipe is restarted after stagnation is studied by the direct shear tests. The results show that the friction coefficient of pipe-soil interface increases with the stagnation time, which is determined by the thixotropic mud state and the content of gravelly sand involved in shear. In a short period of stagnation, the friction coefficient is determined by the cohesion caused by thixotropic mud and the friction angle produced by the gravelly sand involved in the shearing action. With the increase of stagnation time, the friction angle gradually becomes the decisive factor for the increase of friction coefficient.
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Abbreviations
- A :
-
The reciprocal of the initial rate of normal displacement
- B :
-
The limit value of normal displacement
- C c :
-
Curvature coefficient
- c f :
-
Peak cohesion
- c r :
-
Residual cohesion
- C u :
-
Unevenness coefficient
- d 50 :
-
Average particle size
- G s :
-
Specific gravity
- t :
-
Stagnation time
- u :
-
Shear displacement
- u f :
-
Peak friction coefficient
- u r :
-
Residual friction coefficient
- R 2 :
-
Correlation coefficient
- v :
-
Normal displacement
- ∆P :
-
Additional friction
- ρ dmax :
-
Maximum dry density
- ρ dmin :
-
Minimum dry density
- σ :
-
Normal stress
- τ f :
-
Peak shear strength
- τ r :
-
Residual shear strength
- φ f :
-
Peak friction angle
- φ r :
-
Residual friction angle
- ω :
-
Moisture content
References
Barla M, Camusso M, Aiassa S (2006) Analysis of jacking forces during microtunnelling in limestone. Tunnelling and Underground Space Technology 21(6):668–683, DOI: https://doi.org/10.1016/j.tust.2006.01.002
Bennett RD (1998) Jacking forces and ground deformations associated with microtunneling. PhD Thesis, University of Illinois, Urbana-Champaign, IL, USA
Boulanger JAR, Wong CY (2016) Sand suspension deposition in horizontal low concentration slurry pipe flows. Granular Matter 18(2):15–24, DOI: https://doi.org/10.1007/s10035-016-0616-2
Chapman DN, Ichioka Y (1999) Prediction of jacking forces for microtunnelling operations. Tunnelling and Underground Space Technology 14(99):31–41, DOI: https://doi.org/10.1016/S0886-7798(99)00019-X
Cheng W, Ni JC, Shen JS, Huang H (2017) Investigation into factors affecting jacking force: A case study. Proceedings of the Institution of Civil Engineers Geotechnical Engineering 170(4): 322–334, DOI: https://doi.org/10.1680/jgeen.16.00117
Cheng WC, Wang L, Xue ZF, Ni JC, Rahman MM, Arulrajah A (2019) Lubrication performance of pipejacking in soft alluvial deposits. Tunnelling and Underground Space Technology 91:102991, DOI: https://doi.org/10.1016/j.tust.2019.102991
Curran BG, McCabe BA (2011) Measured jacking forces during slurry-shield microtunnelling in a boulder clay at Kilcock, Ireland. Proceedings of the 15th European conference on soil mechanics and geotechnical engineering, September 12–15, Athens, Greece, 1627–1632
GB/T 50123 (2019) Code for standard for soil test method. GB/T 50123, China Planning Press, Beijing, China
Iscimen M (2004) Shearing behavior of curved interfaces. MSc Thesis, Georgia Institute of Technology, Atlanta, GA, USA
Ji XB, Zhao W, Ni PP, Barla M, Han JY, Jia PJ, Chen Y, Zhang CY (2019) A method to estimate the jacking force for pipe jacking in sandy soils. Tunnelling and Underground Space Technology 90(8): 119–130, DOI: https://doi.org/10.1016/j.tust.2019.04.002
Khazaei S, Shimada H, Kawai T, Yotsumoto J, Matsui K (2006) Monitoring of over cutting area and lubrication distribution in a large slurry pipe jacking operation. Geotechnical and Geological Engineering 24(3): 735–755, DOI: https://doi.org/10.1007/s10706-004-5436-1
Li C, Zhong ZL, Liu XR, Tu YL, He GN (2019) Numerical simulation for an estimation of the jacking force of ultra-long-distance pipe jacking with frictional property testing at the rock mass-pipe interface. Tunnelling and Underground Space Technology 89:205–221, DOI: https://doi.org/10.1016/j.tust.2019.04.004
Marshall AM (1998) Pipe-jacked tunnelling: Jacking loads and ground movements. PhD Thesis, University of Oxford, Oxford, UK
McGillivray CB (2009) Lubrication mechanisms and their influence on interface strength during installation of subsurface pipes. PhD Thesis, Georgia Institute of Technology, Atlanta, GA, USA
Milligan GWE, Marshall MA (1998) The functions and effects of lubrication in pipe jacking. World tunnel congress, October 15–17, Sao Paulo, Brazil, 739–744
Milligan GWE, Norris P (1996) Site-based research in pipe jacking — Objectives, procedures and a case history. Tunnelling and Underground Space Technology 20(4):3–24, DOI: https://doi.org/10.1016/0886-7798(95)00041-0
Namli M, Guler E (2017) Effect of bentonite slurry pressure on interface friction of pipe jacking. Journal of Pipeline Systems Engineering and Practice 8(2):1–9, DOI: https://doi.org/10.1061/(ASCE)PS.1949-1204.0000255
Nomura Y, Hoshina H, Shiomi H, Umezu T (1985) Pipe jacking method for long curve construction. Journal of Construction Engineering and Management 111(2):138–148, DOI: https://doi.org/10.1061/(ASCE)0733-9364(1985)111:2(138)
Norris P (1992) The behaviour of jacked concrete pipes during site installation. PhD Thesis, University of Oxford, Oxford, UK
O’Dwyer KG, Mccabe BA, Sheil BB (2019) Interpretation of pipe-jacking and lubrication records for drives in silty soil. Underground Space 5(3):199–209, DOI: https://doi.org/10.1016/j.undsp.2019.04.001
Pellet-Beaucour AL, Kastner R (2002) Experimental and analytical study of friction forces during microtunneling operations. Tunnelling and Underground Space Technology 17(1):83–97, DOI: https://doi.org/10.1016/S0886-7798(01)00044-X
Reilly CC, Orr TLL (2017) Physical modelling of the effect of lubricants in pipe-jacking. Tunnelling and Underground Space Technology 63: 44–53, DOI: https://doi.org/10.1016/j.tust.2016.11.005
Shen SL, Cui QL, Ho CE, Xu YS (2016) Ground response to multiple parallel microtunneling operations in cemented silty clay and sand. Journal of Geotechnical and Geoenvironmental Engineering 142(5): 1–11, DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001441
Shi PX, Liu W, Pan JL, Yu CC (2018) Experimental and analytical study of jacking load during microtunneling Gongbei tunnel pipe roof. Journal of geotechnical and geoenvironmental engineering 144(1):05017006, DOI: https://doi.org/10.1061/(ASCE)GT.1943-5606.0001801
Shou K, Yen J, Liu M (2010) On the frictional property of lubricants and its impact on jacking force and soil-pipe interaction of pipe-jacking. Tunneling and Underground Space Technology 25(4):469–477, DOI: https://doi.org/10.1016/j.tust.2010.02.009
Sofianos AI, Loukas P, Chantzakos C (2004) Pipe jacking a sewer under Athens. Tunneling and Underground Space Technology 19(2):193–203, DOI: https://doi.org/10.1016/S0886-7798(03)00108-1
Staheli K (2006) Jacking force prediction: An interface friction approach based on pipe surface roughness. PhD Thesis, Georgia Institute of Technology, Atlanta, GA, USA
Sterling RL (2020) Developments and research directions in pipe jacking and microtunneling. Underground Space 5(1):1–19, DOI: https://doi.org/10.1016/j.undsp.2018.09.001
Zhang P, Behbahani SS, Ma B, Iseley T, Tan L (2017) A jacking force study of curved steel pipe roof in Gongbei tunnel: Calculation review and monitoring data analysis. Tunneling and Underground Space Technology 72(2018):305–322, DOI: https://doi.org/10.1016/j.tust.2017.12.016
Zhao W, Li TL, Han JY, Cheng C (2020) Experiment on the shear mechanics characteristics of the interface between gravelly sand and concrete pipe. Journal of Northeastern University 41(3):424–430 (in Chinese)
Acknowledgments
This research work was financially supported by the National Natural Science Foundation of China, Grant Nos. 51878127 and 51578116.
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Li, T., Zhao, W., Liu, R. et al. Experimental Study on the Pipe-Soil Interface under the Influence of Pipe Jacking Stagnation Time. KSCE J Civ Eng 26, 1428–1438 (2022). https://doi.org/10.1007/s12205-021-0642-4
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DOI: https://doi.org/10.1007/s12205-021-0642-4