Relationship between rock uniaxial compressive strength and digital core drilling parameters and its forecast method
Hongke Gao1
Qi Wang2
Bei Jiang3
Peng Zhang4
Zhenhua Jiang4
Yue Wang4
1.Geotechnical and Structural Engineering Research Center,Shandong University,Jinan 250061,China;State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,China;State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China2.Geotechnical and Structural Engineering Research Center,Shandong University,Jinan 250061,China;State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China3.State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221116,China;State Key Laboratory for GeoMechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China4.Geotechnical and Structural Engineering Research Center,Shandong University,Jinan 250061,China;Shandong Tianqin Mining Machinery Equipment Co.,Ltd.,Yuncheng 274700,China
摘要：The rock uniaxial compressive strength (UCS) is the basic parameter for support designs in underground engineering.In particular,the rock UCS should be obtained rapidly for underground engineering with complex geological conditions,such as soft rock,fracture areas,and high stress,to adjust the excavation and support plan and ensure construction safety.To solve the problem of obtaining real-time rock UCS at engineering sites,a rock UCS forecast idea is proposed using digital core drilling.The digital core drilling tests and uniaxial compression tests are performed based on the developed rock mass digital drilling system.The results indicate that the drilling parameters are highly responsive to the rock UCS.Based on the cutting and fracture characteristics of the rock digital core drilling,the mechanical analysis of rock cutting provides the digital core drilling strength,and a quantitative relationship model (CDP-UCS model) for the digital core drilling parameters and rock UCS is established.Thus,the digital core drilling-based rock UCS forecast method is proposed to provide a theoretical basis for continuous and quick testing of the surrounding rock UCS.
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论文发表日期：2021-12-30
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：9( 605-613 )
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