a TABLE OF CONTENTS - UNDP

More documents

Recommendations

Info

Type of Pipe Deflection Criteria % After comple- At least two Damaged tion of weeks after and not Surround completing to be Permissible the trench re-used Material SDR range verti- backfill. cal diameter Maximum elongated measured in only any plane. uPVC 10-15 0 - 1.0 1.0 2.25 uPVC 15-25 0 - 1.5 2.0 3.75 RP 30-40 0 - 1.5 2.0 4.50 RP 40-50 0 - 2.0 2.5 5.25 uPVC 25+ RP 50+ 2.5 3.0 7.50 RP 15+ HDPE 10+ y SDR' is the Standard Dimension Ratio, which is the ratio of pipe diameter divided by the pipe wall thickness. In the above paragraph deflection shall be considered as the maximum difference between the measured in-situ diameter and the stated non-deflected diameter on any axis divided by the non-deflected diameter. For pipelines of 600 mm diameter and above, internal measurements of deflection shall be made continuously in the vertical plane and readings shall be recorded at each pipe joint, at the mid-point of each pipe length, at any point where the limiting deflections above are exceeded and at any other point directed by the Engineer's Representative. Where the length of pipeline between manholes or access points exceeds 100 metres the measurements shall be taken progressively on completion of backfilling and shall be verified after temporary reinstatement of the trench within reasonable limits of each access point. For pipelines smaller than 600 mm diameter deflections shall be checked by pulling through an approved cylindrical plug dimensioned to suit the permissible minimum deflected diameter of the pipe. 19.1.12.10 Stanks to Pipelines in Granular Bedding Where pipes are laid on a granular bed or with a granular backfill, a stank, i.e. an impermeable barrier shall be provided across the full width of the trench and for the complete depth of the bedding and fill at intervals not exceeding 50 m, and generally mid-way between manholes. The stank shall consist of:- either a 300 mm long plug of fine grained clayey soil or a 300 mm long plug of a mixture of sand and bitumen consolidated in an approved manner. 288
y or a mixture of sand and clay, compacted to form an impermeable barrier at least one meter in length. or a layer of thick polyethylene cut to fit around the pipe across the full width of the trench and laid on the granular bedding material at its natural repose angle. All methods must form an impermeable barrier. Bitumen shall not be used for thermoplastic pipes. 19.1.12.11 Thrust and Anchor Blocks to Pressure Pipelines Underground pressure pipelines shall be provided with concrete blocks as follows:- Thrust/anchor blocks shall be provided at every installed bend, tee or angle branch. Anchor/thrust blocks shall be provided on pipelines laid to gradients steeper than 1:20, up to 1:15 every third pipe shall be anchored, up to 1:10 every second pipe and at 1:5 every pipe shall be anchored. Concrete shall extend to undisturbed ground on thrust faces of thrust blocks and on both faces of anchor blocks. Where details are not shown on the drawings the Contractor shall prepare proposals for thrust and anchor blocks and submit them to the Engineer's Representative for approval. Such approval shall not relieve the Contractor of his responsibility for the adequacy of his proposals. Special details shall be shown on the drawings or instructed at site where environmental or ground conditions dictate. 19.1.12.12 Pipes Protruding from Structures, Concrete Surrounds and Anchor Blocks Unless otherwise detailed a pipeline at or below ground level protruding from a structure shall have two flexible joints adjacent to the structure located as follows:- Pipe Diameter Distance to First Distance between mm Joint (mm) First and Second Joint (mm) Min. Max. Up to 300 150 450 2.5 * dia. 300 to 100 300 1.5 * dia. 2.5 * dia. above 1000 450 1.5 * dia. 2.5 * dia. Method statements may propose that the first joint be formed by building an appropriate sleeve, collar or coupling into the wall of the structure. Where such a detail is proposed the sleeve, collar or coupling must be capable of maintaining an effective seal under the specified deflection and loading conditions specified for flexible joints "Joint Requirements and Limitations". 289
Page 1 and 2:
y TABLE OF CONTENTS GENERAL........
Page 3 and 4:
y 1.47.2 Expendable Materials .....
Page 5 and 6:
y 2.33 EXCAVATION & BACKFILLING OF
Page 7 and 8:
y 5.11.9 Aggregate Testing ........
Page 9 and 10:
y 11.2.2 Steel.....................
Page 11 and 12:
y 14.11 GLAZING TO WOOD - WITH BEAD
Page 13 and 14:
y 18.6.10.1 Gradation Control unit.
Page 15 and 16:
y 20.4.1.5 Setting-Out ............
Page 17 and 18:
y 1 GENERAL 1.1 Scope of Work The w
Page 19 and 20:
y 1.5 Units of Measurement and Abbr
Page 21 and 22:
y Such approval, however, will not
Page 23 and 24:
y The Engineer may check all or any
Page 25 and 26:
y The Contractor shall be held sole
Page 27 and 28:
1.23 Customs and Local Dues y All s
Page 29 and 30:
y dewatering plant that may be nece
Page 31 and 32:
y 1.34 Road Crossing Road crossing
Page 33 and 34:
1.39 Cooperation with Other Contrac
Page 35 and 36:
y 1.46 Site Office for the Engineer
Page 37 and 38:
y SCHEDULE OF OFFICES The office re
Page 39 and 40:
y Works and interpreting any inform
Page 41 and 42:
j. Survey arrows, wooden pegs, nail
Page 43 and 44:
y Materials Frequency Relevant Stan
Page 45 and 46:
Materials Frequency Relevant Standa
Page 47 and 48:
y 1.49.2 Standard Sampling Methods
Page 49 and 50:
y Materials Frequency Standard Samp
Page 51 and 52:
y Materials Frequency Standard Samp
Page 53 and 54:
y 2 EARTH WORK 2.1 Scope of Work Th
Page 55 and 56:
y If damage to existing utilities c
Page 57 and 58:
y approved material and compacted b
Page 59 and 60:
y material and shall provide a clea
Page 61 and 62:
y as shown on the drawings or other
Page 63 and 64:
2. Methods used for stockpiling gra
Page 65 and 66:
y completion of such tests, the bac
Page 67 and 68:
y When the embankment material resu
Page 69 and 70:
y Embankments, which are formed of
Page 71 and 72:
y All accepted subgrade preparation
Page 73 and 74:
y Plasticity Index AASHTO T90 6% ma
Page 75 and 76:
y Aggregate Base will be measured b
Page 77 and 78:
y roadbase shall be maintained in a
Page 79 and 80:
y 2.29 Dikes of Guiding Dams 2.29.1
Page 81 and 82:
2.31.4 Measurement y Box Gabions wi
Page 83 and 84:
y Surplus excavated material result
Page 85 and 86:
8. The width and depth of the trenc
Page 87 and 88:
y 3 CONCRETE WORKS 3.1 Quality of C
Page 89 and 90:
− A minimum of 2 No. of vibrators
Page 91 and 92:
y These specifications give methods
Page 93 and 94:
y 3.9.2.3 Gradation Seive No. 1 1/2
Page 95 and 96:
C. Sulfate-resisting Portland cemen
Page 97 and 98:
y Each cylinder or cube shall be ma
Page 99 and 100:
y 3.9.20 General Requirements For P
Page 101 and 102:
y 3.9.28 Inspection of Concrete The
Page 103 and 104:
y reinforcement. The gap lefts from
Page 105 and 106:
y compaction of concrete under the
Page 107 and 108:
y 3.17 Culverts 3.17.1 Description
Page 109 and 110:
y 4 MASONRY WORKS A. Quality of mix
Page 111 and 112:
y 3.2.5 Table of Grading BS410 Siev
Page 113 and 114:
5 PAVIOUR (INCLUDING MARBLE AND TER
Page 115 and 116:
y This screed shall be 2 1/2 cm. th
Page 117 and 118:
5.11 Concrete Block Surfacing y 5.1
Page 119 and 120:
y When directed by the Engineer, te
Page 121 and 122:
y These blocks shall be tested for
Page 123 and 124:
y The paving blocks shall be laid o
Page 125 and 126:
y 5.12 Tiles Testing All paving sha
Page 127 and 128:
y 5.14.2 Test Standards Unless stat
Page 129 and 130:
y If any of the 20 test block do no
Page 131 and 132:
6 ROOFER AND CORROSION PROTECTION M
Page 133 and 134:
y period of seven days as described
Page 135 and 136:
y 6.2 PART I 6.3 Specifications 6.4
Page 137 and 138:
y Rubberized bitumen/polythene shal
Page 139 and 140:
y 6.15 Roof Finishes Type D: (Traff
Page 141 and 142:
y 7.1.4 PVC Sheet Lining Materials
Page 143 and 144:
y (a) An epoxy resin, acrylic, poly
Page 145 and 146:
Notes : y (1) For manufactured item
Page 147 and 148:
y Softwood in carpentry work shall
Page 149 and 150:
y 9 IRONMONGERY 9.1 Generally The C
Page 151 and 152:
y 10.4 Sundries Wrought steel balus
Page 153 and 154:
y 11.2.3 Stainless Steel Stainless
Page 155 and 156:
y (One) Unreinforced gel coats shal
Page 157 and 158:
y (2) Electrical strength of sheet
Page 159 and 160:
y Valves shall normally be metal se
Page 161 and 162:
y 11.2.5.11 Reinforced Plastic Line
Page 163 and 164:
y The complete seal plate shall be
Page 165 and 166:
y Bright (high tensile) items to a
Page 167 and 168:
y 11.2.6 Installation of Metal and
Page 169 and 170:
y 'On-seating' installation : 5 lit
Page 171 and 172:
y gutter outlet. Gutter brackets ar
Page 173 and 174:
y comply with B.S. 1212 and be mark
Page 175 and 176:
y Pipes shall be connected to manho
Page 177 and 178:
y 12.18.3 Kitchen Sinks Is manufact
Page 179 and 180:
y which the cast iron frame is embe
Page 181 and 182:
y Two types of cast iron manholes c
Page 183 and 184:
y - Not to be such proximity to any
Page 185 and 186:
13 PLASTER WORK AND OTHER FLOOR WAL
Page 187 and 188:
y refitted and jointed afterwards.
Page 189 and 190:
y 13.10 Tiles All the tiling works
Page 191 and 192:
y 14.4 Wired Glass Wired glass shal
Page 193 and 194:
y 14.17 Measurement &Payment The ac
Page 195 and 196:
y Synthetic alkyd based undercoatin
Page 197 and 198:
y FINISHING PROGRESS 15.9 Internal
Page 199 and 200:
The contractor has to supply and in
Page 201 and 202:
y Paltough sheets are easily cut wi
Page 203 and 204:
y 15.19.8 Cleaning and Finishing Fo
Page 205 and 206:
y 16 ROADWAY LIGHTING 16.1 General
Page 207 and 208:
y manufacturers installation instru
Page 209 and 210:
y Eight) Armour Tests − − Sampl
Page 211 and 212:
y Five) The Contractor shall leave
Page 213 and 214:
shall be soundly made by use of har
Page 215 and 216:
for hot dip galvanizing. Alternativ
Page 217 and 218:
y − Contractor shall provide alon
Page 219 and 220:
y − − − − Protective sheath
Page 221 and 222:
components. It shall also be distin
Page 223 and 224:
y − Utilization factor curve for
Page 225 and 226:
y 17.5 Specification for Mid-Hinged
Page 227 and 228:
y − The maximum and the minimum o
Page 229 and 230:
y 17.7 Raising/Lowering Crown High
Page 231 and 232:
y The lowering raising device with
Page 233 and 234:
a 16A, 220V weatherproof socket and
Page 235 and 236:
3. An approved locking device shall
Page 237 and 238:
y 3rd) Gantry Sign Lighting Require
Page 239 and 240:
- Fuse Holder shall be DIN rail mou
Page 241 and 242:
y 17.13 Feeder Pillar Specification
Page 243 and 244:
y Height: 1000 mm (without canopy)
Page 245 and 246:
- Busbars shall be of the same ampe
Page 247 and 248:
y Auto ON/OFF; ON OFF 1. Power S
Page 249 and 250:
y TABLE No. 2 1000 W HPSV 400 W HPS
Page 251 and 252:
y 18.1.3.2 Application of Bituminou
Page 253 and 254: y Unused bituminous material shall
Page 255 and 256: y Traffic control and the applicati
Page 257 and 258: y 18.4.2 Materials 18.4.2.1 Bitumin
Page 259 and 260: y Transverse joints shall be made b
Page 261 and 262: y 18.6.2 Bitumen Materials Unless o
Page 263 and 264: y Table for DBM Aggregate Grading f
Page 265 and 266: y The gradation of the combined agg
Page 267 and 268: y Tanks for the storage of bitumen
Page 269 and 270: y interval between the application
Page 271 and 272: y they are to be mixed. When the mi
Page 273 and 274: y The temperature of the D.B.M. jus
Page 275 and 276: y The Contractor will make a survey
Page 277 and 278: y 18.6.16.9 Trial Area After the ap
Page 279 and 280: y 18.6.20 Payment No payment will b
Page 281 and 282: y 18.7.2 Sampling of Bituminous Mat
Page 283 and 284: 18.8.6 Binder y 18.8.6.1 Binder The
Page 285 and 286: y In addition to the ballotini incl
Page 287 and 288: y 18.9 Road Signs 18.9.1 Descriptio
Page 289 and 290: y 18.9.6 Lettering Sign lettering s
Page 291 and 292: y For structural purposes pipes sha
Page 293 and 294: y unless otherwise specified and th
Page 295 and 296: y 19.1.6 UPVC Pipes and Fittings UP
Page 297 and 298: y 12) Wrinkles over than 3% of the
Page 299 and 300: y 19.1.12.2 Trench Widths for Pipel
Page 301 and 302: y 19.1.12.4 Pipelines Bedded on Tre
Page 303: Group B and C Pipe Materials y Exce
Page 307 and 308: The encasing shall be by one of the
Page 309 and 310: y 19.1.13 Pipe Work 19.1.13.1 Pipe
Page 311 and 312: y Construction Solid Solid Solid Co
Page 313 and 314: the public highway rights of way or
Page 315 and 316: 20.4.1.1 Scope of Works y This sect
Page 317 and 318: Removal of Existing Structures and
Page 319 and 320: y Trench excavation work shall be p
Page 321 and 322: y Any over-excavation at the bottom
Page 323 and 324: y Trenches shall not be backfilled
Page 325 and 326: y All pipes shall be laid and maint
Page 327 and 328: y These fittings shall be either P.
Page 329 and 330: 20.4.7 Indicator Posts to Pressure
Page 331 and 332: y The pressure test shall be 1.5 ti
Page 333 and 334: - Materials y - Precast Concrete El
Page 335 and 336: 3) Welded Elbows y These shall cons
Page 337 and 338: y Bend Test, Break Test and Tensile
Page 339 and 340: y The traffic control plan shall ta
Page 341 and 342: y 1. The Contractor shall be respon
Page 343 and 344: always be at the same end. Painting
Page 345 and 346: y 20.4.18.1 General 2. Valves shall
Page 347 and 348: closed when the water rises in the
Page 349 and 350: 17. Each hose connection shall have
Page 351 and 352: 1. The Contractor shall furnish the
Page 353 and 354: Material IS0/BS Standard Descriptio
Page 355 and 356:
y Material IS0/BS Standard Descript
Page 357 and 358:
y replaced no backfilling will be a
Page 359 and 360:
CCTV Inspection of Gravity Sewers y
Page 361 and 362:
y 21.3 Inspection and Testing of Al
Page 363 and 364:
y 21.3.3 Site Testing and Commissio
Page 365 and 366:
y h) Work plan The contractor has t
Page 367 and 368:
y quantities are executed without i
Page 369:
The fittings required under this co
show all

a TABLE OF CONTENTS - UNDP

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?