ANALYSIS OF TYPICAL CASES IN GEOTECHNICAL ENGINEERING

Contents Chapter 1Introduction1 Chapter 2Ground Geotechnical Engineering Disasters3 2.1Introduction3 2.1.1Hazard Recognition3 2.1.2Rating the Hazard and the Risk9 2.1.3Elements of Slope Stability13 2.2Slope Failure Form Characteristics18 2.2.1Creep18 2.2.2Falls20 2.2.3Planar Slides in Rock Masses21 2.2.4Rotational Slides in Rock26 2.2.5Rotational Slides in Soils28 2.2.6Lateral Spreading and Progressive Failure31 2.2.7Debris Slides46 2.2.8Debris Avalanches47 2.2.9Debris Flows53 2.2.10Rock-Fragment Flows53 2.2.11Soil and Mud Flows54 2.2.12Offshore Failures57 2.3Assessment of Slopes60 2.3.1General60 2.3.2Soil and Mud Flows61 2.3.3Slope Characteristics81 2.3.4Weather Factors93 2.3.5Hazard Maps and Risk Assessment97 2.4Treatment of Slopes100 2.4.1General Concepts100 2.4.2Changing Slope Geometry106 2.4.3Surface Water Control112 2.4.4Internal Seepage Control113 2.4.5Side-Hill Fills117 2.4.6Retention120 2.5Investigation:A Review134 2.5.1General134 2.5.2Regional and Total Slope Studies136 2.5.3Detailed Study of Cut,Fill,or Failure Area140 2.5.4Case Study141 2.5.5Instrumentation and Monitoring145 2.6References147 2.7Further Reading152 Chapter 3Reservoir Landslide155 3.1Analysis of Typical Cases of Translational Landslides156 3.1.1Introduction156 3.1.2Mechanism Analysis157 3.1.3Case161 3.1.4Discussion166 3.2Early Warning of Landslide in Reservoir Area169 3.2.1Introduction169 3.2.2Method171 3.2.3Case172 3.2.4Discussion177 3.3Prediction of Reservoir Landslide178 3.3.1Introduction178 3.3.2Method180 3.3.3Case182 3.3.4Discussion185 3.4Stability Trends of Jinpingzi Landslide187 3.4.1Introduction187 3.4.2Internal Damage Analysis189 3.4.3Numerical Simulation194 3.4.4Comparative Analysis of Simulation Results198 3.5References201 Chapter 4Study on Vibration Test of Unstable Rock Mass211 4.1Frozen-Thawing Test212 4.1.1Introduction212 4.1.2Methods213 4.1.3Experiments and Results214 4.1.4Discussion217 4.2Early Warning of Unstable Rocks217 4.2.1Introduction217 4.2.2Results218 4.2.3Discussion219 4.3Quantitative Identification of Potential Landslide221 4.3.1Introduction221 4.3.2Double Safety Factor Method(DSFM)222 4.3.3Case223 4.3.4Discussion224 4.4Quantitative Identification of Unstable Rock226 4.4.1Introduction226 4.4.2Methods228 4.4.3Case228 4.4.4Discussion230 4.5Hazardous Rock Block Stability Assessment231 4.5.1Introduction231 4.5.2Model233 4.5.3Determination of Vibration Feature Parameters236 4.5.4Assessment of the Stability Evolution Trend241 4.5.5Discussion243 4.6Calculation Method of Bonding Section243 4.6.1Introduction243 4.6.2Joint Rock Stability and Vibration Response246 4.6.3Test249 4.7Three-dimensional Stability Evaluation of Rock Mass251 4.7.1Introduction251 4.7.2Experiments253 4.7.3Discussion254 4.8Tilt Monitoring and Instability Prediction256 4.8.1Introduction256 4.8.2Monitoring Method258 4.8.3Laboratory Test260 4.8.4Case264 4.8.5Discussion268 4.9Constant Micromotion Characteristics of Rock Mass272 4.9.1Introduction272 4.9.2Laboratory Simulation Experiment274 4.9.3Discussion281 4.10References285 Chapter 5Application of InSAR in Geological Disasters304 5.1Early Landslide Detection305 5.1.1Introduction305 5.1.2Method307 5.1.3Case315 5.1.4Discussion322 5.2Landslide Location and Monitoring322 5.2.1Introduction322 5.2.2Case324 5.2.3Method325 5.2.4Error Analysis330 5.2.5Error Reduction336 5.3Slow-moving Landslide Monitoring339 5.3.1Data341 5.3.2Case347 5.3.3Discussion348 5.4Dynamic Susceptibility Mapping349 5.4.1Introduction349 5.4.2Method and Data351 5.4.3Case356 5.4.4Discussion362 5.5References364