Highway Slope Manual

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7 Page No. 6.3 DESIGN CONSIDERATIONS 56 6.3.1 General 56 6.3.2 Aesthetics of <strong>Highway</strong> <strong>Slope</strong> Design 58 6.4 MAINTENANCE CONSIDERATIONS 60 7. CONSTRUCTION CONTROL 61 7.1 GENERAL 61 7.2 SUPERVISION OF WORKS 61 7.3 ROCK REMOVAL FROM SLOPES 63 7.3.1 Rock Breaking Methods 63 7.3.2 Safety Precautions 65 7.3.3 Rockfall Protection and Prevention 65 7.4 GEOTECHNICAL DESIGN REVIEW 67 8. SLOPE AINTENANCE AND UPGRADING 71 8.1 GENERAL 71 8.2 SLOPE MAINTENANCE 71 8.3 SLOPE UPGRADING AND PREVENTIVE MAINTENANCE 73 9. LANDSLIDE EERGENCY PREPAREDNESS AND RESPONSE 75 9.1 EMERGENCY PREPAREDNESS 75 9.2 EMERGENCY RESPONSE 76 9.2.1 General 76 9.2.2 Landslide Inspection 76 9.2.3 Road Closure 79 9.2.4 Urgent Repairs 80 9.2.5 Re-opening of Roads 81 REFERENCES 83
8 Page No. APPENDICES APPENDIX A - THE SLOPE MANAGEMENT SYSTEM OF THE 91 HIGHWAYS DEPARTMENT OF THE GOVERNMENT OF THE HONG KONG SAR APPENDIX B - MODEL BRIEF FOR A GEOTECHNICAL REVIEW 93 APPENDIX C - MODEL BRIEF FOR A GEOTECHNICAL ASSESSMENT 99 APPENDIX D - LANDSLIP PREVENTIVE MEASURES PROGRAMME 107 APPENDIX E - LANDSLIDE EMERGENCY SYSTEM OF 109 THE GOVERNMENT OF THE HONG KONG SAR APPENDIX F - SITE CHECK LIST FOR LANDSLIDE INSPECTIONS 113
Page 1 and 2: HIGHWAY SLOPE MANUAL GEOTECHNICAL E
Page 3 and 4: 2 。 The Government of the Hong Ko
Page 5 and 6: 4 STEERING COMMITTEE: Geotechnical
Page 7: 6 Page No. 3. SITE INVESTIGATION 33
Page 11 and 12: 10 LIST OF FIGURES Figure No. Page
Page 13 and 14: 12 LIST OF LATES Plate No. Page No.
Page 15 and 16: 14 [BLANK PAGE]
Page 17 and 18: 16 year (Evans et al, 1998), they h
Page 19 and 20: 18 Plate 1.4 Landslide at Ching Che
Page 21 and 22: 20 Plate 1.8 Steep Natural Terrain
Page 25 and 26: 24 Notes: (1) The projects in the P
Page 27 and 28: 26 of the geotechnical hazards and
Page 29 and 30: 28 Table 2.2 Geotechnical Haards Th
Page 31 and 32: 30 for carrying out a GA is given i
Page 35 and 36: 34 Table 3.1 Potential Uses of Diff
Page 37 and 38: 36 or features such as dykes or fra
Page 39 and 40: 38 movement monitoring and control
Page 41 and 42: 40 landslide debris, and the nature
Page 43 and 44: 42 Notes: (1) This Figure is based
Page 45 and 46: 44 Table 4.5 Recommended Minimum Fa
Page 49 and 50: 48 Plate 5.1 Surface Runoff Channel
Page 51 and 52: 50 Cascades, with cover where neces
Page 53 and 54: 52 (a) Trash Grill at Inlet of Cros
Page 55 and 56: 54 5.2.3 Drainage Improvement Works
Page 57 and 58: 56 For the control of visual impact
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58 Plate 6.3 Pattern and Texture Pl
Page 61 and 62:
60 ighways are environments with a
Page 63 and 64:
62 Filling operations for a highway
Page 65 and 66:
64 Blasting is the most common meth
Page 67 and 68:
66 Notes: (1) The responsibility fo
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68 Results of Rockfall Protective B
Page 71 and 72:
70 [BLANK PAGE]
Page 73 and 74:
72 overseeing the maintenance of th
Page 75 and 76:
74 In addition to the slope upgradi
Page 77 and 78:
76 after each heavy rainstorm event
Page 79 and 80:
78 d n n d d d d d d d
Page 81 and 82:
80 event of a landslide should be b
Page 83 and 84:
82 [BLANK PAGE]
Page 85 and 86:
84 Federal Highway Administration (
Page 87 and 88:
86 Highways Department (1996). Mana
Page 89 and 90:
88 Wong, H.N., Pang, L.S., Wong, A.
Page 91 and 92:
90 [BLANK PAGE]
Page 93 and 94:
92 [BLANK PAGE]
Page 95 and 96:
94 key natural terrain and man-made
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96 and details of all existing slop
Page 99 and 100:
98 [BLANK PAGE]
Page 101 and 102:
-AA (v) relevant services and utili
Page 103 and 104:
-A2 (m) (n) 1dentify any statutory
Page 105 and 106:
-A4 Notes: (-) An example of a prog
Page 107 and 108:
106 [BLANK PAGE]
Page 109 and 110:
108 Wong, C.K.L. (1998). The New Pr
Page 111 and 112:
110 of slopes and slope owners and
Page 113 and 114:
112 [BLANK PAGE]
Page 115:
114 (iv)subsidence of ground or roa
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