Basic Geotechnical Earthquake Phần 8 docx

... 6 5 1.707×10 1 .88 4 9.05655 x 10 = Anchor pull = A P = P P FS A p − + P E = 282 24.125 – 43392 1 88 4 86 90 . + = 1 388 2.277 lb/ft Example 10.4 A braced excavation will be used to support vertical ... 10.2. Retaining Wall Analyses for Earthquakes 113 Neglecting P 1A , moment due to active force at tieback anchor = (86 28. 75)(1+45/2) + (19116)(1 + (0.667)(45)) = (2.02775 × 10 5 )+(...

Ngày tải lên: 07/08/2014, 04:21

... the 28 Basic Geotechnical Earthquake Engineering Fig. 2.19 Acceleration, velocity and displacement versus time recorded during San Fernando earthquake (Courtesy: Day, 2002) The geotechnical earthquake ... period of 55 years for the earthquakes of magnitude 8 or greater. The last big earthquake of magnitude 8. 7 occurred in 1950. Therefore, northeastern region is ready for a...

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... Very sensitive clays may lose so 38 Basic Geotechnical Earthquake Engineering 38 DYNAMIC SOIL PROPERTIES 4 CHAPTER 4.1 INTRODUCTION This book is concerned with geotechnical problems associated ... (Relationship between maximum acceleration, 48 Basic Geotechnical Earthquake Engineering have been developed by various researchers. Donovan and Bornstein, 19 78, developed the f...

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... surface. For total stress analysis: T = cL + Ntanφ = s u L 86 Basic Geotechnical Earthquake Engineering middle one-third of footing. q′= 89 . 988 kN/m 2 from Eq. (7.9). q ult in Eq. (7.11) is determined ... sites near faults generating 8. 5 magnitude earthquake. 8. k h = 0.1 for severe earthquake, = 0.2 for violent and destructive earthquake and = 0.5 for catastrophic earthq...

Ngày tải lên: 07/08/2014, 04:21

... Cohesive Soil Weakened by Earthquake 83 8. EARTHQUAKE RESISTANT DESIGN OF DEEP FOUNDATION 87 8. 1 Introduction 87 8. 2 Design Criteria 88 9. SLOPE STABILITY ANALYSES FOR EARTHQUAKES 90 9.1 Introduction ... Chile 8. 7 0 1957 Aleutian Islands 8. 6 0 1950 Himalayan region 8. 6 8, 500 1906 Ecuador 8. 6 500 1963 Kurile Islands 8. 6 0 1923 Alaska 8. 5 0 1.2.2 Deadliest Earthquake...

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... events in 188 3. His catalog includes earthquakes from 89 3 to 186 9. His son, Richard D. Oldham ( 185 8-1936), wrote accounts of four major Indian earthquakes ( 181 9, 186 9, 188 1, and 189 7). He completed ... Valley, CA 17 14 6.64 10/ 28/ 83 Borah Peak, ID 33 20 6.93 10/ 18/ 89 Loma Prieta, CA 40 16 6.92 06/ 28/ 92 Landers, CA 62 12 7.34 Although the exact area associated with a given siz...

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... alt="" 62 Basic Geotechnical Earthquake Engineering Failure and cracks induced by liquefaction have also been observed. These images (Fig. 6 .8( a) and Fig. 6 .8( b)), probably from the 1906 earthquake ... environments. 54 Basic Geotechnical Earthquake Engineering Selection of Design Earthquake The selection of a design earthquake may be based on: (a) Known design-level and...

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... surface. Solution: At 3 m depth, at the given location, σ v0 = (1.5)( 18. 9) + (1.5)(9 .84 +9 .81 ) = 58 kPa.

Ngày tải lên: 07/08/2014, 04:21

... of important structures. 124 Basic Geotechnical Earthquake Engineering Fig. 11 .8 Schematic of the earthquake design procedure (Courtesy: http://www.branz.co.nz) Earthquake Resistant Design of ... the types of earthquake resistant structural systems? Briefly explain about them. 5. Comment on earthquake engineering design techniques. 126 Basic Geotechnical Earthquake Engin...

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... horizontal acceleration 48, 56 Peninsular India 31, 32 PGA 119, 120 Pier 87 , 88 Pier 88 Piles 87 Piles 87 , 88 , 89 Plan layouts 1 28 Plane strain 94, 95 Plane strain 94, 95 Plate-boundary slip 6 Plates ... 47, 48, 51 Attenuation equations 47 Awarness compaign 36 B Bearing capacity 76, 77, 78, 79, 80 , 81 , 82 , 83 , 84 , 86 INDEX Blasting 73 Braced frames 127 Brittle beha...

Ngày tải lên: 07/08/2014, 04:21