STUDY ON A NEW DESIGN OF GROUTING PUMP FOR MANAGING WATER INRUSH IN KARST TUNNELS
DOI:
https://doi.org/10.14311/CEJ.2018.03.0029Keywords:
Karst water bursting, Grouting, Rotary piston pump, Grouting model test, Engineering field testAbstract
The low flow rate and efficiency of existing grouting pumps such as piston pumps and diaphragm pumps result in difficulty in managing sudden water and slurry discharges. In this study, a new design for grouting pumps is proposed to improve the grouting flow rate and efficiency. A grouting model test scheme to manage the water inrush of a tubular karst is designed. The power consumption of this system is equivalent to that of a diaphragm grouting pump. Improved performance was also observed for the newly designed rotary piston pump in grouting plugging tests. The retention of slurry and changes in moving water flow are observed and recorded to examine the grouting effects of the pumps. In addition, the pressure and flow rate changes of the grouting slurry are used to gauge the performance parameters of the pumps. A rotary piston pump and a traditional piston pump were tested in single- and separate-hole grouting experiments in tunnel engineering sites. In the grouting model test, which manages the water inrush of a tubular karst, the newly designed rotary piston pump had a distinct advantage in terms of the slurry retention thickness and fracture sealing effect. In particular, the efficiency of the rotary piston pump increased by a factor of 10 over the diaphragm grouting pump. During the experiments in the engineering site, the grouting flow rate of the rotary piston pump showed significant increase when compared to the traditional piston pump. The construction time was halved. The proposed rotary piston grouting pump has shown obvious advantages over existing grouting pumps.
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Xu Z. H., Li S. C., Li L. P., Chen J.,Zhang Z. G. and Shi S. S., 2011. Cause, disaster prevention and controlling of a typical kind of water inrush and lining fracturing in karst tunnels. Chinese Journal of Rock Mechanics and Engineering, vol. 30, no. 7: 1396-1404.
Li S. C., Shi S. S., Li L. P., Chen J., Xu Z. H., Zhou Z. Q. and Yuan Y.C., 2014. Control of water inrush in typical karst tunnels in three gorges reservoir area and its application. Chinese Journal of Rock Mechanics and Engineering, vol. 33, no. 9: 1887-1895.
Li S. C., Li S. C., Zhang Q. S., Xue Y. G., Ding W. T., Zhong S. H., He F. L. And Liu Y. S., 2007. Forecast of karst-fractured groundwater and fefective geological conditions. Chinese Journal of Rock Mechanics and Engineering, vol. 26, no. 2: 217-225.
Sun Q., Zhu S. Y. and Zhang R., 2013. Analysis on Water Inrush Mechanism of Pipeline Conduction. Chinese Journal of basic science and engineering, vol. 21, no. 3: 463-470.
Li L. P., Li S. C. and Zhang Q. S., 2010. Study of mechanism of water inrush induced by hydraulic fracturing in karst tunnels. Rock and Soil Mechanics, vol. 31, no. 2: 523-528.
Xue Y. G., Li S. C., Su M. X., Li S. C., Zhang Q. S., Zhao Y. and Li W. T., 2011. Study of geological prediction implementation method in tunnel construction. Rock and Soil Mechanics, vol. 32, no. 8: 2416-2422.
Yuan J. Q., Chen W. Z., Huang S. W., Zhou X. S., Zhou Z. H., and Liu J. Q., 2016. Mechanism and synergetic treatment technology of water inrush disaster in completely and strongly weathered granite tunnels. Chinese Journal of Rock Mechanics and Engineering, vol. 35, supp. 2: 4164-4171.
Wang X. Y., Tan Z. S., Wang M. S., and Zhang M., 2008. Analysis of interaction between surrounding rock and lining in high water-level tunnels with controlled drainage. Rock and Soil Mechanics, vol. 29, no. 6: 1623-1628.
Liu S., Li X., Sun T., and Zhang H., 2016. Calculation of the Hydraulic Extension Limit of an Extended-Reach Well with Allowance for the Power Limitations of the Available Mud Pumps. Chemistry and Technology of Fuels and Oils, vol. 51, no. 6: 713-718.
Xia J. M., Liu H. B., Zhang Z. H., ZHU S. J. and YU X., 2016. Vibration Analysis of the Crank-link Mechanism of Reciprocating Bilge Pumps. Noise and Vibration Control, vol. 36, no. 3: 151-154.
Yan X. A., Zheng W., Zhang Q., and Lu B. X., 1999. Finite Element Analysis on the Structural Vibration of the Discharge Pipes for Reciprocating Pumps. Chinese Journal of Mechanical Engineering, vol. 35, no. 6: 74-76.
Wu H., Tong Z. W., Chen H. and Liang J. S., 2014. Dynamic simulation analysis on improved mud pump BW-280/12 using SolidWorks motion and ADAMS. Manufacturing Automation, vol. 19, no. 5: 65-66.
Zhang C., Feng S. B., Bai Q. P., and Ai Z. H., 2015. The Development of a Test Bench for Testing the Hydraulic Pump with High Pressure Large Flow. Hydraulics Pneumatics & Seals, no. 7: 82-84.
Song R. G., Zhang B. H. and Yang Y. X., 2007. Study on the meshing characteristic of a new cycloidal pump. Powder Metallurgy Technology, vol. 25, no. 2: 99-103.
Ren H. Y., Zhang S. C., Wang Z. H., Deng H. Y., Zhou S. B. and Xu Y. Y., 2011. Analysis of the Characteristics and Flow Rate of a New Eccentric and Squirmy Rotor pump for Cleaning Machine. Light Industry Machinery, vol. 29, no. 2: 14-17.
Li Y. L., Liu K. and Peng J. H., 2006. Research and Development on Integrative Parameterization Design with Its Solid Model for Cycloid Pump. Transactions of the Chinese Society for Agricultural Machinery, vol. 37, no. 12: 109-113.
Chen Z. B., Zou Y. Z., Jiang Z. and Dai M., 2017. Numerical Simulation of the Effect of the Gap between Rotor and Pump on the Performance of the Rotor Pump. Noise and Vibration Control, vol. 37, no. 2: 62-66.
Xu B., Hu M., Zhang J. H. and Su Q., 2016. Characteristics of volumetric losses and efficiency of axial piston pump with respect to displacement conditions. Journal of Zhejiang University SCIENCE A, vol. 17, no. 3: 186-201.
Yan P., Li S. Y., Yang S., Wu P. and Wu D. Z., 2017. Effect of stacking conditions on performance of a centrifugal pump. Journal of Mechanical Science and Technology, vol. 31, no. 2: 689-696.
Wen D., Chen F., Zhen X. S., Chai W. C., Wang J. and Zhou C., 2016. Analysis of Leakage and Volumetric Efficiency for Cam-Rotor Double-Stator Vane Pump. Journal of Xi’an Jiaotong University, vol. 50, no. 9: 20-24.
HU W., 2013. Grout diffusion and plugging mechanism in rockmass channel and fissures under hydrodynamic condition[Ph. D. Thesis]. China University of Mining and Technology.
LI S. C., Li M. T., Zhang X., Zhang Q. S., Hao P. S. and Wang Z. A., 2018. Investigation on Performance of Triangular Rotor Pump Based on Numerical Simulation and Experiment. Transactions of the Chinese Society for Agricultural Machinery, vol. 49, no. 9: 389-396.
LI M. T., LI S. C., Zang X. and Zhang Q. S., 2018. Experimental investigations on extrusive eccentric rotary pump. Journal of Harbin Institute of Technology, 2018-03-26.
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