Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

More documents

Recommendations

Info

17.13.4 Fine enough to prevent the passage through its pores of particles from theformation materials.17.13.5 Course enough to give a lesser resistance so that the head loss in flow of waterthrough it should be relatively small.17.13.6 Gravels shall be as specified in IS 4097: 1988 (Reaffirmed - 1993).17.14. Tube wells drilled shall be perfectly vertical. The rates for drilling are inclusiveof the verticality test required to be conducted. All the drilling shall be as per IS:2800 (Part-I): 1979: tube well construction (First Revision) (Reaffirmed 1885)the testing of the tube well shall be as per IS: 2800 (Part-II) 1979: Tube welltesting (First Revision) (Reaffirmed 1990).17.15. The rates for drilling provided in the are inclusive of depreciation charges of allthe machinery, tools & plants required for drilling operation, transportation ofdrilling machine, erection of machine at site, removal of machine from site aftercompletion, cost of water, cost of drilling mud, fuel, labour and all otherunforeseen items for drilling work and clearance of site after completion ofwork.17.16 For location/Selection of site resistively survey shall be carried out by a wellqualified and experienced geo hydrologist. Resistively meter shall be providedby the concerned Geo hydrologist.17.17 The diameter of ordinary tube wells constructed for installation of hand pumpsshall be 125 mm up to bottom level of the casing pipe and 115 mm in the rockbelow the casing. Such tube wells shall be designated as 125/115 mm diaordinary tube wells.17.18 The ordinary tube wells constructed for installation of hand pumps in thebasaltic rock area where intertrappean formation (collapsible strata betweenthe rocks) is present. The nominal diameter of the tube well up to the level ofintertrappean formation shall be 150 mm.17.18.1 The intertrappean formation shall be encased by 125 mm dia G.I. casing pipe.Therefore, the finished nominal diameter of tube well in the intertrappeanformation the nominal diameter of tube well shall be 115 mm. Such tube wellsshall be designated as 150/125/115 mm dia ordinary tube wells.17.19 The nominal diameter of ordinary tube wells constructed for installation ofpower pumps shall be 150 mm or 200 mm for the entire depth depending uponthe type and size of pump to be installed in the tube well. Such tube wells shallbe designated as 150 mm dia ordinary tube well & 200 mm dia ordinary tubewells.17.20 The gravel packed tube wells shall be constructed in alluvial formation, suitablefor such tube wells, in which the fine and uniform sand is present in the waterUrban Administration & Development Department Page 204
earing aquifer. Such tube wells shall be constructed by direct circulation rotarydrilling method or reverse circulation rotary drilling method using suitable rotarydrilling machine.17.21 The diameter of boreholes for construction of 100 mm, 150 mm & 200 mmfinished nominal diameter gravel packed tube wells shall be 300 mm, 350 mmand 400 mm respectively exclusive of pipe wall thickness. The thickness of thegravel shroud around the screen shall generally be not less than 10 cm. Suchtube wells shall be designated as 300 (100) mm dia, 350 (150) mm dia,400(200) mm dia gravel packed tube wells.17.22 The gravel tube packed tube wells shall be constructed only after obtaining thetechnical clearance of drawing & design of gravel packed tube well from thecompetent authority.17.23 The rates for drilling work are inclusive of the collection of samples of soil/rockcuttings not less than 100 grams from different strata to be collected at every 3meter depth for initial 15 meters depth and at each 10 meters depth after 15meter and at the change of strata also and depositing the same with theEngineer in charge, duly marked and packed in polythene bags.17.24 Screen length :-The length of strainer is usually determined from the thickness of the aquiferencountered. It is not necessary to screen the whole depth of the aquifer andonly that depth should be screened, which will be enough theoretically forabout 200% of the desired discharge. Wherever a full aquifer has been drilledthrough, the screened portion of the aquifer may be limited as follows:-17.24.1 In fine sand gravel aquifers, only 40% of the aquifer need be screened.17.24.2 In coarse to medium sand grade aquifer, a maximum of 60% of the aquifer bescreened.17.24.3 Thickness of aquifer % of screen lengthLess than 7.5 707.5 to 15m 75Above 15m 8017.24.4 1.5 m long bail plug of M.S. blind pipe with close bottom and lifting hook of 20mm dia bars or bail plug of approved type shall be provided at the bottom ofscreen pipe.17.24.5 Standard slot size for 150 mm dia 4.85 mm thick slotted pipes of slot size 76.2mmx3.2 mm.Design pattern (staggered and vertical)(i) No. of slots per set 3(ii) No. of sets per row 11(iii) No. of rows per m 13Urban Administration & Development Department Page 205
Page 1 and 2:
GOVERNMENT OF MADHYA PRADESHDEPARTM
Page 4 and 5:
Branch(i) A special form of cast ir
Page 6 and 7:
A valve in which the closure to an
Page 8 and 9:
Sullage waste Water:Spent water fro
Page 10 and 11:
Laying:The approximate positions of
Page 12 and 13:
CHAPTER NO.1CAST IRON SOCKET AND SP
Page 14 and 15:
Socket and spigot pipes Class AWeig
Page 16 and 17:
1.5 .4 Pipe shall be tested hydrost
Page 18 and 19:
1.9.3 Mass (weight) of the various
Page 20 and 21:
Diameter (mm)Weight (approx) kgHeav
Page 22 and 23:
Page 24 and 25:
1.9.3.11 Cast iron plugs:-Diameter
Page 26 and 27:
1.12.7 Caulking may be done with pn
Page 28 and 29:
2.5 Thrust Blocks2.5.1 In case of b
Page 30 and 31:
2.9.3 Should any test of the pipe l
Page 32 and 33:
CHAPTER NO.3CAST IRON PIPES AND SPE
Page 34 and 35:
3.4.2.2 Cast iron flanged spigot:-R
Page 36 and 37:
3.4.2.6 All flanged cast iron tees:
Page 38 and 39:
Page 40 and 41:
Nominal diameterTable 2.3Refer Tabl
Page 42 and 43:
Table No.3.8DimensionWall thickness
Page 44 and 45:
CHAPTER NO. 4DUCTILE IRON PRESSURE
Page 46 and 47:
Nominal Diameter Outer diameter of
Page 48 and 49:
4.3.2.4 Where the coating material
Page 50 and 51:
Nominal DiameterDN (mm)Table No. 4.
Page 52 and 53:
4.7.2.3 Lengths of FittingsThe perm
Page 54 and 55:
during the jointing operations. As
Page 56 and 57:
CHAPTER NO.5:UNPLASTICIZED PVC PIPE
Page 58 and 59:
NominaloutsideDiameter(Nominalsize)
Page 60 and 61:
5.10 Handling and storage5.10.1 Bec
Page 62 and 63:
a)b) Size of the fitting and the ap
Page 64 and 65:
5.14.5 Trench Bottom5.14.5.1 The tr
Page 66 and 67:
CHAPTER NO.6CAST IRON VALVES6.1 App
Page 68 and 69:
efore painting. All exposed machine
Page 70 and 71:
with the main. For large aqueduct p
Page 72 and 73:
6.4.7 Nominal sizes :-6.4.7.1 The r
Page 74 and 75:
Table No.6.6Material for different
Page 76 and 77:
CHAPTER -7GALVANIZED IRON PIPES, SP
Page 78 and 79:
7.4.2 Globe Valves- The globe valve
Page 80 and 81:
7.6 Testing of valves:-7.6.1 Genera
Page 82 and 83:
NominalBoreDimensions and Nominal M
Page 84 and 85:
7.10 Testing of Pipes :Following te
Page 86 and 87:
Nominal BoreMinimum Outside Minimum
Page 88 and 89:
7.15.2.2 Taper Screw Plug TestSocke
Page 90 and 91:
7.20.2 All pipes and fittings shall
Page 92 and 93:
S.NoTolerance and ovality is given
Page 94 and 95:
8.7.2 The pipe shall be as uniform
Page 96 and 97:
directional changes within the tren
Page 98 and 99:
frequently used and in normal or sl
Page 100 and 101:
8.22 Test to Establish Perfectibili
Page 102 and 103:
8.26.6.3 PP Saddles8.26.6.3.1 The b
Page 104 and 105:
g Bypass Pipe Carbon Steel IS1239(p
Page 106 and 107:
9.4.1 Coupling Area of jointThis is
Page 108 and 109:
Table No. 9.3Hydrostatic Design Pre
Page 110 and 111:
polyester belts with a minimum widt
Page 112 and 113:
9.19.4 Straight continues lengths o
Page 114 and 115:
Table No. 10.2(Refer Table No.1 IS
Page 116 and 117:
1592-2003. The tolerances on the in
Page 118 and 119:
10.5.2.5 Weight of cast iron plain
Page 120 and 121:
10.5.2.9 Weight of cast iron Plain
Page 122 and 123:
10.8.1.1 Width- The width of the tr
Page 124 and 125:
10.11.2 Cast Iron Detachable Joints
Page 126 and 127:
shall be used between the straps an
Page 128 and 129:
10.18.9.1 After the test has been c
Page 130 and 131:
CHAPTER NO- 11SALT GLAZED STONEWRE
Page 132 and 133:
11.3.2 Each pipe and fittings may a
Page 134 and 135:
on each horizontal rail which is fi
Page 136 and 137:
11.7.7 The joint with cast iron or
Page 138 and 139:
CHAPTER NO- 12UNPLASTICIZED NON-PRE
Page 140 and 141:
12.4 Dimensions of Pipes:12.4.1 Mea
Page 142 and 143:
12.8 Trench:-(See Drawing No.3)12.8
Page 144 and 145:
12.13.3 Care should be taken to lea
Page 146 and 147:
12.17.6 HandlingFollowing Recommend
Page 148 and 149:
12.17.10 Construction of backfill e
Page 150 and 151:
CHAPTER - 13REINFORCED CEMENT CONCR
Page 152 and 153:
Diameter ThicknessStrength Test Req
Page 154 and 155:
Table 13.5(Refer Clause 8.2 IS 458
Page 156 and 157: efore the next pipe is laid. Adequa
Page 158 and 159: 13.11.4 The water shall be filled t
Page 160 and 161: Chapter - 14SEWER APPURTENANCES14.1
Page 162 and 163: provided with cover of medium duty
Page 164 and 165: 14.3.5.4.3 (c) By drop in previous
Page 166 and 167: 14.5.3.4 Where the diameter of the
Page 168 and 169: 14.7.4 Heavy reinforced concrete co
Page 170 and 171: 14.11 By pass:By pass arrangements
Page 172 and 173: acetate paper, silt drums, ropes, i
Page 174 and 175: 14.22. Automotive Suction Machine :
Page 176 and 177: 14.25.3 Brick Masonry Chamber : Aft
Page 178 and 179: 15.2.5 Lift: the vertical distance
Page 180 and 181: ensure that drilling has been done
Page 182 and 183: accepted deductions (stated as a pe
Page 184 and 185: described in IS 4031 (Part-5) : 198
Page 186 and 187: v) Cleat bolt of size M-10vi)vii)Se
Page 188 and 189: 15.17.5.3 To protect persons from i
Page 190 and 191: 15.17.5.19. Wherever a socket or co
Page 192 and 193: esults in unsuitable sub grade cond
Page 194 and 195: 15.17.14.7 Clear out space shall be
Page 196 and 197: 15.17.15.7.1 Ordinarily no surplus
Page 198 and 199: Water Supply pipes lines should be
Page 200 and 201: 16.3.3 Failure to remove the ridge
Page 202 and 203: 16.9.12 The cover shall be capable
Page 204 and 205: 17.7 Development of tube-well with
Page 208 and 209: (iv) No. of slots per m 429(v) % Ar
Page 210 and 211: Annexure: ADRILLING OF TUBE WELL1.
Page 212 and 213: particularly those having clay or s
Page 214 and 215: 5.3.2 The shape of the openings sho
Page 216 and 217: 5.7.3.6.1 The contractor shall deve
Page 218 and 219: STRATACHATANNEXURE-2Mohalla/BastiNa
Page 220 and 221: LocationApparentResistivelyAB/2Inte
Page 222 and 223: GRAVEL PACKED TUBE WELLSGAVEL PACKE
Page 224 and 225: HAND PUMP PLATEFORMUrban Administra
Page 226 and 227: Urban Administration & Development
Page 250: Urban Administration & Development
show all

Specifications Part 1 - Water Supply, Sewerage and Tube Well Works

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

Delete template?

Save as template?