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醉染图书全长黏结锚索支护力学传递机理9787502486266
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Chapter 1 Introduction1.1 Background1.2 Research objectives1.3 Book outlineChapter 2 A new laboratory short encapsulation pull test apparatus design2.1 Introduction2.2 LSEPT apparatus design2.2.1 Components of the test rig2.2.2 Test confining medium2.. Confinement tube2.2.4 Anchor tube2.2.5 Bearing plate2.2.6 Anti-rotation devices2.2.7 Hydraulic control2.2.8 Monitoring system. Test specimen preparation and installation..1 Cementitious confining medium casting and curing..2 Cable bolt and anchor tube installation2.4 Preliminary tests2.4.1 Test with a MW9 cable bolt2.4.2 Test with a Sursrad cable bolt2.4.3 Influence of borehole roughness2.4.4 Influence of pre-confinement of the confining medium2.4.5 Further study of cable termination methods2.5 SummaryChapter 3 Load transfer behaviour of fully grouted cable bolts3.1 Introduction3.2 Load transfer of modified cable bolts3.2.1 Dimensions of MW9 cable bolts3.2.2 Bearing plate effect3.. Borehole size effect3.2.4 Confining medium strength effect3.3 Load transfer of plain cable bolts3.3.1 Dimensions of Sursrad cable bolts3.3.2 Bearing plate effect3.3.3 Borehole size effect3.3.4 Confining medium strength effect3.4 Comparison between two types of cable bolts3.4.1 Cable surface geometry effect in the weak confining medium3.4.2 Cable surface geometry effect in the strong confining medium3.5 Post-failure behaviour3.5.1 MW9 cable bolt3.5.2 Sursrad cable bolt3.6 SummaryChapter 4 Analytical modelling of load transfer behaviour of fully grouted cable bolts4.1 Introduction4.2 Analytical modelling of the fully grouted cable bolts4.2.1 Governing equation4.2.2 The tri-linear model of the cable/grout interface4.. Pull-out stages of cable bolts4.3 Validation of the analytical model4.3.1 Pull-out tests on plain cable bolts4.3.2 Pull-out tests on modified cable bolts4.4 Shear stress distribution in the peak load state4.5 Interfa shear stress propagation with pull-out stages4.6 SummaryChapter 5 Numerical simulation of the axial behaviour of fully grouted cable bolts5.1 Introduction5.2 Structural element selection5.3 Calibration of confining medium material5.3.1 Calibration of the weak confining medium material5.3.2 Calibration of the strong confining medium material5.4 Simulation of the pull-out behaviour of Sursrad cable bolts5.4.1 Pulling Sursrad cables from weak medium with normal borehole5.4.2 Pulling Sursrad cables from weak medium with larger borehole5.4.3 Pulling Sursrad cables from strong medium5.5 Simulation of the pull-out behaviour of MW9 cable bolts5.5.1 Pulling MW9 cables from weak medium with normal borehole5.5.2 Pulling MW9 cables from weak medium with larger borehole5.5.3 Pulling MW9 cables from strong medium5.6 SummaryChapter 6 ConclusionsReferences
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