Evaluation of Ground Surface Pregrouting in a Mountain Tunnel Based on FAHP

The quality of ground surface pregrouting (GSPG) is commonly qualitatively evaluated using single factor; however, the quality evaluation involves numerous facets, and a quantitative evaluation is rare. The aim of this study was to quantitatively evaluate the quality of a GSPG based on three aspects. The fuzzy analytic hierarchy process (FAHP) was adopted to obtain the final score and quality classification of the GSPG. Based on three aspects, namely, integrity, continuity, and sturdiness, a series of field tests was also conducted, qualitatively evaluating the quality of the GSPG preliminary, to obtain the required test data and verify the FAHP results. The results of the FAHP showed that the quality of the GSPG was 86.42, which could be classified as “Good”, whereas the field tests exhibited that the GSPG was effective, thereby verifying that the FAHP was reliable. In addition, the proposed method provided a detailed comprehension of the quality evaluation of GSPG and a frame of reference for analogous engineering.

[1]  Thomas L. Saaty,et al.  DECISION MAKING WITH THE ANALYTIC HIERARCHY PROCESS , 2008 .

[2]  Wen-Chieh Cheng,et al.  Field Response of High Speed Rail Box Tunnel during Horizontal Grouting , 2015 .

[3]  Peng Li,et al.  Parameters Optimization of Curtain Grouting Reinforcement Cycle in Yonglian Tunnel and Its Application , 2015 .

[4]  Jamal Zadhesh,et al.  Consolidation Grouting Quality Assessment using Artificial Neural Network (ANN) , 2015 .

[5]  David B. Wilson,et al.  Evaluation of Grouting for Hydraulic Barriers in Rock , 2013 .

[6]  Arul Arulrajah,et al.  A simple approach for characterising tunnel bore conditions based upon pipe-jacking data , 2018 .

[7]  Zhao Jian.  Application of Analytic Hierarchy Process in Choice of Dam Foundation Curtain Grouting Form , 2009 .

[8]  Feng Chen,et al.  Strength Assessment of Broken Rock Postgrouting Reinforcement Based on Initial Broken Rock Quality and Grouting Quality , 2017 .

[9]  Hideki Shimada,et al.  Application and evaluation of ground surface pre-grouting reinforcement for 800-m-deep underground opening through large fault zones , 2017, Arabian Journal of Geosciences.

[10]  Hua Xu,et al.  Transmission of Normal P-Waves across a Single Joint Based ong‐λModel , 2019, Shock and Vibration.

[11]  J. S. Shen,et al.  Simple Method to Predict Ground Displacements Caused by Installing Horizontal Jet-Grouting Columns , 2018 .

[12]  Vilém Novák,et al.  Fuzzy Set , 2009, Encyclopedia of Database Systems.

[13]  Peng Yan,et al.  An Analysis of Consolidation Grouting Effect of Bedrock Based on its Acoustic Velocity Increase , 2015, Rock Mechanics and Rock Engineering.

[14]  Friedrich-Karl Ewert.  Evaluation and interpretation of water pressure tests , 1994 .

[15]  Pan Yue,et al.  A hybrid fuzzy evaluation method for curtain grouting efficiency assessment based on an AHP method extended by D numbers , 2016, Expert Syst. Appl..

[16]  Suksun Horpibulsuk,et al.  Field performance of concrete pipes during jacking in cemented sandy silt , 2015 .

[17]  Wen-Chieh Cheng,et al.  Quality control of double fluid jet grouting below groundwater table: Case history , 2014 .

[18]  Neha Shrivastava,et al.  An Experimental Study of Compaction Grouting on Its Densification and Confining Effects , 2017, Geotechnical and Geological Engineering.

[19]  S. Long,et al.  Grout assessment of plastic ducts in prestressed structures with an HHT-based method , 2018, Construction and Building Materials.

[20]  Zhang Junjie,et al.  The rheological test and application research of glass fiber cement slurry based on plugging mechanism of dynamic water grouting , 2018, Construction and Building Materials.

[21]  Hua Xu,et al.  Theoretical study of the dynamic response of a circular lined tunnel with an imperfect interface subjected to incident SV-waves , 2019, Computers and Geotechnics.

[22]  T. L. Saaty.  A Scaling Method for Priorities in Hierarchical Structures , 1977 .

[23]  Xiao Zhang,et al.  Detection and treatment of water inflow in karst tunnel: A case study in Daba tunnel , 2018, Journal of Mountain Science.