Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 134

Table 7.1 (continued)
Sr. No. Item specifications Unit of work Required man-days

Unskilled Semi-skilled Skilled

3-16 Fixing of precast RCC fence posts in pits of required size, including digging of pits, local

transportation over a mean lead of 100 m, positioning of posts, filling pits with soil and
ramming such soil to secure the base or footing of the posts:
(a) The posts being of RCP-1 100 nos. 20

(b) The posts being of RCP-2 100 nos. 25

(c) The posts being of RCP-3 100 nos. 30

3-17 Stretching of barbed wire on posts and securing it with mild steel wire of gauge 14, such that

the MS wire ends are twisted and cut flush, with tension in wires not being less than
20 kg-wt, where
(a) Posts are of height less than 1.6 m 1,000 m 7

(b) Posts are of height 1.61 m or more (requires use of stool) 1,000 m 10

3-18 Fixing vertical barbed-wire strands upon a fence's horizontal strands, securing the vertical

pieces of wires at each intersection and at ends with MS wire of 14 gauge twisted and cut
flush:
(a) Using fresh rolls of barbed wire, including cutting of such wire into pieces of required
length

1,000 nos. 18

(b) Using old barbed wire, including untangling, cutting, and straightening with hammer 1,000 nos. 27

(c) Using pieces of barbed wire already cut and straightened 1,000 nos. 12

3-19 Interlacing or weaving thorns or shrubs or brushwood upon horizontal strands of a

barbed-wire fence, so as to make it impenetrable for animals, including cutting and carrying
such shrubs or thorns from a mean distance of 500 m

100 m 10

3-20 Removal of barbed wire from fence, including untying such wires, rolling these into spools of

45 cm diameter, and stacking such spools at a mean distance of 500 m, the height of fence
from ground being:
(a) Less than 1.6 m 1,000 m 5

(b) 1.6 m or more (necessitating use of a stool) 1,000 m 7

3-21 Extraction of iron posts of barbed-wire fence, where wires have already been removed,

including stacking at 500 m after removing lime- or mud-concrete from post, but where post
has been fixed in precast cement concrete block, keeping such block intact: