PACKAGE : I Bid Document VOLUME : II - Public Health Engineering

5.1 Description.
Chapter 5
Earth Work
The work specified in this section includes the provision of all labour, machinery,
construction equipment and other appliances required to perform all earthwork
specified or required, in a sound, workmanlike manner.
5.2 General.
Excavation shall be required to be done for the following works:
a) Excavation for underground pipelines.
b) Excavations for valve chambers, Thrust blocks and Special structure
No separate payment shall be made for removal of shrubs, which are less than
100mm in diameter at breast height, grass, small bushes and stumps. The alignment
of the main shall be so fixed as to avoid cutting of any trees.
No extra payment shall be made to the Contractor for working in a confined space.
5.3 Classification.
The excavation work shall be classified into the following categories by inspection
of faces of cutting:
i) Loamy, clayey soils like black cotton soils, red earth, hard gravel, mixture of gravel
and soft disintegrated rock like shale, ordinary gravel, stony earth and earth mixed
with fair sized boulders, except rock requiring blasting, chiseling, wedging etc.
ii) Hard rock and boulders to be removed by benching, chipping, chiseling, wedging,
barring and by controlled blasting wherever permissible.
GTS : General Technical Specification. Page 33