Analysis of Rate Shotcrete and Wiremesh [PDF]

Zitiervorschau

Silkayara Barkot Tunnel

Analysis of Rates

Annexure-L

WORKING RATE - PLAIN SHOTCRETING A

Material Sr. No. Item 1 Cement (5% wastage) 2 Sand 3 Coarse aggregate 4 Water 5 Admixture

B

C

Quantity Unit Rate 10.0 bags 500 1.020 cum 700 0.340 cum 700 LS LS Total cost of material per cum

Mixing charges of material (per cum.) BM plant Hourly use rate of 45 cum BM plant Capacity of BM plant Efficiency 50% Actual production of BM plant Cost of mixing of material per cum Transportation of Mix to site by transit Mixer Average Lead = Transit Mixer (Capacity- 4 cum) = Actual carrying capacity (considering 75% efficenecy) CYCLE TIME Loading Time (4*60/22.5) Spotting time & waiting time Turning and unloading time Loading haul @ 20 Km/hr Empty haul @ 25 Km/hr

= = =

Total cycle time -

D

E

F

G

= =

= = = = = =

Rs. Rs. Rs. Rs. Rs. Rs.

Amount 5,000.00 714.00 238.00 50.00 225.00 6,227.00

= =

Rs. cum/hr

4,350.00 45.00

= =

cum/hr Rs.

22.50 193.33

5.00 km 4.00 cum. 3.00 cum. 8.0 1.5 10.0 15.0 12.0 46.50

Consider, Actual working time in 1 hour duration No. of trips in 45 min working hour Output of transit mixer Use rate of Transit Mixer (Capacity- 4 cum) Transportation rate per cum

min min min min min min = = = = =

min cum Rs. Rs.

45.00 0.97 3.87 1,785.00 461.13

= =

Rs. Cum

4,105.00 10.00

= =

cum/hr Rs.

6.00 684.17

=

Rs.

684.17

Sub Total (A+B+C+D+E) Add 20% for loss in rebound

= =

Rs. Rs.

8,249.79 1,649.96

Total (Sub Total + F)

=

Rs.

9,899.75

Placement charges Use rate of Shotcrete machine Capacity of Shotcrete machine Efficiency 60% Actual production of shotcrete machine Use rate of Shotcrete machine per cum Lighting, work shop charges and other misc. Items @ 100 % of D

Add 20% for Overhead & Profit on prime cost Rate per cum of shotcrete Rate per sq. m / 100mm thick shotcrete

Therefore, Rate per sqm of Shotcrete (50 mm thick) Rate per sqm of Shotcrete (75 mm thick) Rate per sqm of Shotcrete (100 mm thick) Rate per sqm of Shotcrete (150 mm thick) With wiremesh Rate per sqm of Shotcrete (75 mm thick)

Page 1 of 3

1,979.95 = =

Rs. Rs.

11,880.00 1,188.00

= = = =

Rs. Rs. Rs. Rs.

595.00 891.00 1,188.00 1,782.00

=

Rs.

1,651.00

Silkayara Barkot Tunnel

Analysis of Rates

Rate per sqm of Shotcrete (100 mm thick) Rate per sqm of Shotcrete (150 mm thick)

Page 2 of 3

Annexure-L

= =

Rs. Rs.

1,948.00 2,542.00

Silkayara Barkot Tunnel

Analysis of Rates

Annexure-M

WORKING RATE - PROVIDING AND FIXING WIREMESH A

Material Charges 1

Cost of scaffolding

2

Cost of wire mesh materials

LS

=

Rs.

50.00

=

Rs.

100.00

=

Rs.

400.00

=

Rs.

60.00

=

Rs.

460.00

=

Rs.

23.00

=

Rs.

533.00

LS

=

Rs.

50.00

LS

=

Rs.

50.00

Total Charges (A+B+C)

=

Rs.

633.00

Prime Cost

=

Rs.

633.00

Rate per kg. Wiremesh required per sqm area =

4 kg

Cost of wire mesh material Cost of spikes @

15% of above TOTAL

Add towards lapping etc. @

5%

Total Material Charges (A) B

Machinery Charges for fixing wiremesh Drilling for fixing spikes

C

Labour Charges Labour Charges

Add 20% for Overhead & Profit on prime cost

126.60 Rate per sqm

Page 3 of 3

=

Rs.

760.00