第7期 谭卓英等：基于仪器钻进系统的风化花岗岩地层界面识别 .669 层变化的复杂性，在非常量化参数的作业条件下，要 based on specific energy of drilling.Int J Rock Mech Min Sci. 建立各参数与岩石强度变化的数量关系还有待深入 1996,33(5):543 [9]Miller D.Ball A.Rock drilling with impregnated diamond micro- 研究 bits.An experimental study.Int J of Rock Mech Min Sci Ge- omech Abstr,1990,27(5):363 参考文献 [10]Karpuz C.Pasamehmetoglu A G,Dincer T,et al.Drillability [1]Ersoy A.Waller M D.Prediction of drill-bit performance using studies on the rotary blasthole drilling of lignite overburden se- multivariable linear regression analysis.Trans Inst MVin Metall ries.Int J Surf Min Reclam.1990.4(2):89 Sect A,1995,104:A101 [11]Liu H.Yin KK.Analysis and interpretation of monitored rotary [2]Osman M E.Sabry A M.Limestone,shale penetration rate equa blasthole drill data.Int J Surf Min Reclam Environ.2001.15 tions developed.Oil Gas J.1992.90(1):78 (3):177 [3]Huang S L,Wang Z W.Mechanics of diamond core drilling of [12]刘向君，孟英峰、岩石可钻性和钻速预测，天然气工业 rocks.Int J Rock Mech Min Sci.1997.34(3/4):612 1999,19(5):61 [4]Detournay E,Defourny P.Phenomenological model for the [13]Jung S J.Prisbrey K.Wu G.Prediction of rock hardness and drilling action of drag bits.Int J Rock Mech Min Sci Geomech drillability using acoustic emission signatures during indentation. Abstr,.1992,29(1):13 Int J Rock Mech Min Sci.1994.31(5):561 [5]Ohno T.Karasawa H,Kosugi M.et al.Proposed practical meth- [14]韩来聚，李祖奎，燕静，等.碳酸盐岩地层岩石声学特性的 ods to estimate rock strength and tooth wear while drilling with 实验研究与应用.岩石力学与工程学报，2004,23(14)： roller-cone bits.J Energy Resour Technol.Trans ASME.2004. 2444 126(4):302 [15]赵军，蔡西亚，林元华.声波测井资料在岩石可钻性及钻头 [6]Wij K G.Rotary drilling prediction.Int J Rock Mech Min Sci 选择中的应用.测井技术，2001,25(4)：305 Geomech Abstr.1991.28(1):35 [16]Tan Z Y.Cai M F.Yue Z Q,et al.Application and reliability [7]Ersoy A.Automatic drilling control based on minimum drilling analysis of DPM system in site investigation of HK weathered specific energy using PDC and WC bits.Trans Inst Min Metall granite.J Univ Sci Technol Beijing.2005.12(6):481 Sect A,2003,112(2):A86 [8]Reddish D J.Yasar E.New portable rock strength index test Interface identification in weathered granite strata based on a instrumented drilling system TAN Zhuoying,CAI Meifeng,YUE Z.Q.2),THA M L.G.2).LEE C.F.2) 1)State Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,University of Science and Tech- nology Beijing.Beijing 100083.China 2)Department of Civil Engineering.University of Hong Kong.Hong Kong.China ABSTRACT A hydraulic rotary drill instrumented with a drilling process monitoring system(DP M)was used for site investigation in Hong Kong weathered granite foundation engineering.The penetrating parameters such as effective thrust force,rotational speed,flushing pressure,penetrating rate and displacement of the bit were monitored in real time.A varied slope was defined as a significant index for identification of dominative and sub- sidiary interfaces in the granite site.The result from t-test shows that the confidence of the DPM in identifica- tion of the geotechnical interfaces is.Besides,the analysis of variation of the penetrating parameters at the interfaces indicates that there are different fluctuations at the interfaces in the curves of the parameters with borehole depth.The response degree of effective thrust force and penetrating rate to the variation of rock strength at the interfaces is 81.82%alone. KEY WORDS instrumented drilling system;penetrating parameters;weathered granite;identification of geotechnical interface层变化的复杂性‚在非常量化参数的作业条件下‚要 建立各参数与岩石强度变化的数量关系还有待深入 研究． 参 考 文 献 ［1］ Ersoy A‚Waller M D．Prediction of dril-l bit performance using mult-i variable linear regression analysis．Trans Inst Min Metall Sect A‚1995‚104：A101 ［2］ Osman M E‚Sabry A M．Limestone‚shale penetration rate equa￾tions developed．Oil Gas J‚1992‚90（1）：78 ［3］ Huang S L‚Wang Z W．Mechanics of diamond core drilling of rocks．Int J Rock Mech Min Sci‚1997‚34（3／4）：612 ［4］ Detournay E‚ Defourny P． Phenomenological model for the drilling action of drag bits．Int J Rock Mech Min Sci Geomech Abstr‚1992‚29（1）：13 ［5］ Ohno T‚Karasawa H‚Kosugi M‚et al．Proposed practical meth￾ods to estimate rock strength and tooth wear while drilling with roller-cone bits．J Energy Resour Technol‚Trans ASME‚2004‚ 126（4）：302 ［6］ Wij K G．Rotary drilling prediction．Int J Rock Mech Min Sci Geomech Abstr‚1991‚28（1）：35 ［7］ Ersoy A．Automatic drilling control based on minimum drilling specific energy using PDC and WC bits．Trans Inst Min Metall Sect A‚2003‚112（2）：A86 ［8］ Reddish D J‚Yasar E．New portable rock strength index test based on specific energy of drilling．Int J Rock Mech Min Sci‚ 1996‚33（5）：543 ［9］ Miller D‚Ball A．Rock drilling with impregnated diamond micro￾bits‚An experimental study．Int J of Rock Mech Min Sci Ge￾omech Abstr‚1990‚27（5）：363 ［10］ Karpuz C‚Pasamehmetoglu A G‚Dincer T‚et al．Drillability studies on the rotary blasthole drilling of lignite overburden se￾ries．Int J Surf Min Reclam‚1990‚4（2）：89 ［11］ Liu H‚Yin K K．Analysis and interpretation of monitored rotary blasthole drill data．Int J Surf Min Reclam Environ‚2001‚15 （3）：177 ［12］ 刘向君‚孟英峰．岩石可钻性和钻速预测．天然气工业‚ 1999‚19（5）：61 ［13］ Jung S J‚Prisbrey K‚Wu G．Prediction of rock hardness and drillability using acoustic emission signatures during indentation． Int J Rock Mech Min Sci‚1994‚31（5）：561 ［14］ 韩来聚‚李祖奎‚燕静‚等．碳酸盐岩地层岩石声学特性的 实验研究与应用．岩石力学与工程学报‚2004‚23（14）： 2444 ［15］ 赵军‚蔡西亚‚林元华．声波测井资料在岩石可钻性及钻头 选择中的应用．测井技术‚2001‚25（4）：305 ［16］ Tan Z Y‚Cai M F‚Yue Z Q‚et al．Application and reliability analysis of DPM system in site investigation of HK weathered granite．J Univ Sci Technol Beijing‚2005‚12（6）：481 Interface identification in weathered granite strata based on a instrumented drilling system TA N Zhuoying 1）‚CAI Meifeng 1）‚Y UE Z．Q．2）‚THA M L．G．2）‚LEE C．F．2） 1） State Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines‚University of Science and Tech￾nology Beijing‚Beijing100083‚China 2） Department of Civil Engineering‚University of Hong Kong‚Hong Kong‚China ABSTRACT A hydraulic rotary drill instrumented with a drilling process monitoring system （DPM） was used for site investigation in Hong Kong weathered granite foundation engineering．The penetrating parameters such as effective thrust force‚rotational speed‚flushing pressure‚penetrating rate and displacement of the bit were monitored in real time．A varied slope was defined as a significant index for identification of dominative and sub￾sidiary interfaces in the granite site．The result from t-test shows that the confidence of the DPM in identifica￾tion of the geotechnical interfaces is99％．Besides‚the analysis of variation of the penetrating parameters at the interfaces indicates that there are different fluctuations at the interfaces in the curves of the parameters with borehole depth．The response degree of effective thrust force and penetrating rate to the variation of rock strength at the interfaces is81∙82％ alone． KEY WORDS instrumented drilling system；penetrating parameters；weathered granite；identification of geotechnical interface 第7期 谭卓英等： 基于仪器钻进系统的风化花岗岩地层界面识别 ·669·