|
|
|
| STUDY OF INTRINSIC RELATIONSHIP BETWEEN MECHANICAL PARAMETERS AND PARAMETERS OF ROTARY PENETRATION TEST OF SOFT ROCK |
| SONG Ling1，2，LI Ning1，LI Qian1 |
| (1. Institute of Geotechnical Engineering，Xi?an University of Technology，Xi?an，Shaanxi 710048，China；2. College of Water Conservancy and Architectural Engineering，Shihezi University，Shihezi，Xinjiang 832000，China) |
|
|
|
|
Abstract In order to carry out the in-situ rotary penetration test for determining the mechanical parameters of soft rock quickly and accurately，the intrinsic relationship between mechanical parameters of soft rock and load parameters of rotary penetration test should be known. The soft rock with uniaxial compression strength less than 15 MPa is simulated by the building block，gypsum A，gypsum B and mould gypsum samples. The uniaxial compressive test，shear test and rotary penetrometer test with two kinds of probes with the same diameter of pore-forming are carried out under the same experimental conditions. The axial force and torque of the probe，and the compression strength，Young?s modulus and shear strength of the sample are obtained. In the light of the similarity between cutter?s loading mode in rotary penetrometer test and plate?s loading modes in uniaxial compressive test and shear test，the mathematical model of load parameters in rotary penetration test and mechanical parameters in uniaxial compressive test is established theoretically，which is the intrinsic relationship of the two kinds of parameters. When the sample is at the stage of local volume damage during penetration test， the axial force and torque are not only related to the compression strength，cohesion and internal friction angle，except Young?s modulus，but also linearly increasing with the compression strength and cohesion. When the sample is at the stage of grinding damage，the axial force and torque are related to the Young?s modulus，cohesion and internal friction angle except the compression strength.
|
|
Received: 08 November 2010
|
|
|
|
|
[1] 吴道祥，单灿灿，钟轩明，等. 静力触探的发展及其在岩土工程中的应用[J]. 合肥工业大学学报：自然科学版，2008，31(2)：211–215.(WU Daoxiang，SHAN Cancan，ZHONG Xuanming，et al. Development of CPT and its application in geotechnical engineering[J]. Journal of Hefei University of Technology：Natural Sciences，2008，31(2)：211–215.(in Chinese))
[2] 中华人民共和国行业标准编写组. CECS04—88 静力触探技术标准[S]. 北京：中国建筑工业出版社，1988.(The Professional Standards Compilation Group of People?s Republic of China. CECS04—88 Technical specification for electrical cone penetration test[S]. Beijing：Chinese Architecture Industry Press，1988.(in Chinese))
[3] 毛玉坤，刘奉银，李 宁，等. CPT理论分析及提高触探能力的新思路[J]. 西北地震学报，2007，29(1)：40–44.(MAO Yukun，LIU Fengyin，LI Ning，et al. CPT theory analysis and a new idea for improving penetration capability[J]. Northwestern Seismological Journal，2007，29(1)：40–44.(in Chinese))
[4] 宋 玲，李 宁，刘奉银. 旋进式触探机制研究[J]. 岩石力学与工程学报，2010，29(增2)：3 519–3 525.(SONG Ling，LI Ning，LIU Fengyin. Research on the mechanism of rotary penetration test[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(Supp.2)：3 519–3 525.(in Chinese))
[5] 腾子军. 用钻进参数仪实时判层[J]. 煤田地质与勘探，2000，28(2)；58–60.(TENG Zijun. Real-time stratum-deciding using the drilling parameter instrument[J]. Coal Geology and Exploration，2000，28(2)：58–60.(in Chinese))
[6] SUGAWARA J，YUE Z Q，THAM L G，et al. weathered rock characterization using drilling parameters[J]. Canadian Geotechnical Journal，2003，40(3)：661–668.
[7] YUE Z Q，LEE C F，LAW K T，et al. Automatic monitoring of rotary-percussive drilling for ground characterization—illustrated by a case example in Hong Kong[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(4)：573–612.
[8] 谭卓英，蔡美峰，岳中琦，等. 钻进参数用于香港复杂风化花岗岩地层的界面识别[J]. 岩石力学与工程学报，2006，25(增1)：2 939– 2 945.(TAN Zhuoying，CAI Meifeng，YUE Zhongqi，et al. Interface identification of intricate weathered granite ground investigation in Hong Kong using drilling parameters[J]. Chinese Journal of Rock Mechanics and Engineering，2006，25(Supp.1)：2 939–2 945.(in Chinese))
[9] 谭卓英，岳中琦，蔡美峰. 风化花岗岩地层旋转钻进中的能量分析[J]. 岩石力学与工程学报，2007，26(3)：478–483.(TAN Zhuoying，YUE Zhongqi，CAI Meifeng. Analysis of energy for rotary drilling in weathered granite formation[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(3)：478–483.(in Chinese))
[10] 谭卓英，岳中琦，谭国焕，等. 金刚石钻进比功及风化花岗岩实时分级研究[J]. 岩石力学与工程学报，2007，26(增1)：2 907–2 912. (TAN Zhuoying，YUE Z Q，THAM L G，et al. Study on specific energy of diamond drilling and real-time classification of weathered granite[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 907–2 912.(in Chinese))
[11] 谭卓英，王思敬，蔡美峰. 岩土工程界面识别中的地层判别分类方法研究[J]. 岩石力学与工程学报，2008，27(2)：316–322.(TAN Zhuoying，WANG Sijing，CAI Meifeng. Study on discriminant classification method for ground formation in identification of geotechnical engineering interfaces[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(2)：316–322.(in Chinese))
[12] 藏传伟，黄宏伟，张子新. 冲击钻钻速与隧道岩石力学参数的关系探讨[J]. 地下空间与工程学报，2008，4(3)：415–419(ZANG Chuanwei，HUANG Hongwei，ZHANG Zixin. Review on relationship between drilling rate and rock mechanical parameters in a tunnel[J]. Chinese Journal of Underground Space and Engineering，2008，4(3)：415–419.(in Chinese))
[13] KARASAWA H，OHNO T，KOSUGI M，et al. Methods to estimate the rock strength and tooth wear while drilling with roller-bits—part 1：milled-tooth bits[J]. Journal of Energy Resources Technology，2002，124(3)：125–132.
[14] KARASAWA H，OHNO T，KOSUGI M，et al. Methods to estimate the rock strength and tooth wear while drilling with roller-bits—part 2：insert bits[J]. Journal of Energy Resources Technology，2002，124(3)：133–140.
[15] OHNO T，KARASAWA H，KOSUGI M，et al. Proposed practical methods to estimate rock strength and tooth wear while drilling with roller-cone bits[J]. Journal of Energy Resources Technology，2004，126(4)：302–310.
[16] 李 宁，宋 玲，刘奉银. 围岩力学参数现场测试系统：中国，200810236566.9[P].2008-12-31[2010-11-08]. (LI Ning，SONG Ling，LIU Fengyin. Testing system in site on mechanical parameters of wall rock：China，200810236566.9[P]. 2008-12-31[2010-11-08].(in Chinese))
[17] 宋 玲，李 宁，刘奉银. 较硬地层中旋进触探技术应用可行性研究[J]. 岩土力学，2011，32(2)：635–640(SONG Ling，LI Ning ，LIU Fengyin. Research on applicable feasibility of rotary penetration technique through laboratory experiment[J]. Rock and Soil Mechanics，2011，32(2)：635–640.(in Chinese))
[18] 潘丽军，陈锦权. 试验设计与数据处理[M]. 南京：东南大学出版社，2008：86–93.(PAN Lijun，CHEN Jinquan. Experimental design and data processing[M]. Nanjing：Southeast University Press，2008：86–93.(in Chinese)) |
|
|
|
2011, Vol. 30 
