150_5320_6d_part1

150_5320_6d_part1 - .- U.S. Department of Transportation...

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.- U.S. Department of Transportation Federal Aviation Administration Advisory Circular Subject: AIRPORT PAVEMENT DESIGN AND Date: 7/7/95 EVALUATION Initiated by: AAS- AC No: 150/5320-6D Change: 1. PURPOSE. This advisory circular provides guidance to the public for the design and evaluation of pavements at civil airports. 2. CANCELLATION. AC 150/5320-6C, Airport Pavement Design and Evaluation, dated December 7, 1978, is canceled. 3. APPLICATION. The guidelines contained herein are recommended by the Federal Aviation Administration for applications at airports as appropriate. 4. RELATED READING MATERIAL. The publications listed in Appendix 4 provide further guidance and detailed information on the design and evaluation of airport pavements. 5. METRIC UNITS. To prl)mote an orderly transition to metric units, this advisory circular includes both English and metric dimensions. The metnc conversions may not be the exact equivalents, and until an official changeover to metric units is effected, the English dimensions will be used. -’ RAYMOND T. UHL Acting Director, Office of Airport Safety and Standards
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7t7195 AC 150/5320-6D CONTENTS FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..... -Jx CHAPTER 1. AIRPORT PAVEMENTS - THEIR FUNCTION AND PURPOSES . . . . . . . . . . . . . 1 100. GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 10 1. SPECIFICATIONS AND STANDARDS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 102. SPECIAL CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 103. STAGE CONSTRUCTION OF AIRPORT PAVEMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 CHAPTER 2. SOIL INVESTIGATIONS AND EVALUATION. ........................................... 3 200. GENERAL. ................................................................................................................. 3 20 1. SOIL INVESTIGATIONS. . ....................................................................................... 3 202. SURVEYING AND SAMPLING. ............................................................................ 4 TABLE 2- 1. RECOMMENDED SOIL BORING SPACINGS AND DEPTHS. ................................................................................................................... 4 203. SOIL TESTS. . ............................................................................................................ 5 FIGURE 2- 1. TYPICAL BORING LOG . ................................................................. 6 204. UNIFIED SOIL CLASSIFICATION SYSTEM. ....................................................... 8 TABLE 2-2. CLASSIFICATION OF SOILS FOR AIRPORT PAVEMENT APPLICATIONS . ................................................................................ 8 205. EXAMPLES. ............................................................................................................. 9 FIGURE 2-2. SOIL CLASSIFICATION CRITERIA. .............................................. 10 FIGURE 2-3. FLOW CHART FOR UNIFIED SOIL CLASSIFICATION SYSTEM . ................................................................................. 11 TABLE 2-3. SOIL CHARACTERISTICS PERTINENT TO PAVEMENT FOUNDATIONS . ............................................................................... 12 206. SOIL STRENGTH TESTS. ...................................................................................... .13 FIGURE 2-4. EFFECT OF SUBBASE ON MODULUS OF SUBGRADE REACTION. ....................................................................................... .15 207. SUBGRADE STABILIZATION. .............................................................................. 16 208. SEASONAL FROST. ............................................................................................... .16 FIGURE 2-5. DISTRIBUTION OF DESIGN AIR FREEZING INDEXES IN THE CONTINENTAL U.S. ............................................................... 17 FIGURE 2-6. DISTRIBUTION OF DESIGN AIR FREEZING INDEX VALUES IN ALASKA . .............................................................................. .18 TABLE 2-4. SOIL FROST GROUPS. ...................................................................... .19 209. PERMAFROST. ....................................................................................................... .19 FIGURE 2-7 DEPTH OF FROST PENETRATION. ................................................ 20 FIGURE 2-8 RELATIONSHIP BETWEEN AIR THAWING INDEX AND THAW PENETRATION INTO GRANULAR, NON-FROST SUSCEPTIBLE SUBGRADE SOIL . ...................................................................... .2 1 CHAPTER 3. PAVEMENT DESIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SECTION 1. DESIGN CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300. SCOPE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 30 1. DESIGN PHILOSOPHY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302. BACKGROUND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
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AC 150/5320-6D 7r7195 303. AIRCRAFT CONSIDERATIONS . ........................................................................... 24 304. DETERMINATION OF DESIGN AIRCRAFT . ....................................................... 24 305. DETERMINATION OF EQUIVALENT ANNUAL DEPARTURES BY THE DESIGN AIRCRAFT ................................................................................. 25 306. TRAFFIC DISTRIBUTION . ..................................................................................... 26 307. TYPICAL SECTIONS ............................................................................................... 27 308. FROST AND PERMAFROST DESIGN . ................................................................. 27 FIGURE 3- 1. TYPICAL PLAN AND CROSS SECTION FOR RUNWAY PAVEMENT ........................................................................................... 28 TABLE 3-l. REDUCED SUBGRADE STRENGTH RATINGS ............................ 29 SECTION 2. FLEXIBLE PAVEMENT DESIGN .............................................................. 31 309. GENERAL .................................................................................................................
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This note was uploaded on 01/07/2012 for the course CEE 4674 taught by Professor Staff during the Fall '11 term at Virginia Tech.

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150_5320_6d_part1 - .- U.S. Department of Transportation...

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