Mobilisation and de mobilisation of augur/drilling equipmentfor conducting Geo-technical investigation includingmobilisation of personel with all other necessary accessories for carrying out the boring work at site and demobilisation after completion of work.
3
Sinking exploratory bore holes as per IS 1892 upto a depth of 6.0M or refusal strata, Conducting standard penetration test as per IS 2131 - 1981 atevery 1.5m depth interval or at every change of stratum , collection of 100mm dia undisturbed samples, Observation of water table, Obtaining disturbed soil samples from bore holes, Conducting laboratory tests on undisturbed and disturbed soil samples as listed but not limited to the following.a) Natural moisture content and Natural densityb) Grain size analysisc) Consistancy limitsd) Tri - axial shear testse) Specific gravityf) Consolidation testsg) Unconfined compression testsh) Free swell expansion testsi) Liquid Limit & Plastic Limitj) Chemical analysis of Soil and Water sample etc., as per relavant parts of IS 2720k) Soil water Permeablity testl) The Earth Resistivity tests conducted as per IS-3043 1987, and shall record the Earth Resistivity values at different depths and in different directionsm) Subgrade ModulusPreparation of preliminary report with analysis of test results and recommendations regarding type and depth of foundations.
4
Depth upto 6.00m
5
Over and aboveItem 102.10 for depth from 6.00m to 9.00m
6
Over and aboveItem 102.10 for depth from 9.00m to 12.00m
7
Same as Item 102 but for drilling through all kinds of soils including weathered / disintegrated rock beyond refusal strata
8
When core recovery is less than 10% using NX size tungsten carbide bit
9
When core recovery is greater than 10% using diamond bit(Rate Only)
10
Conducting percolation test by digging one or more pits in the soil of the proposed leach field to a specified depth, presoaking the holes by maintaining a high water level in the holes, then running the test by filling the holes to a specific level and timing the drop of the water level as the water percolates into the surrounding soil.
11
Reports
12
Preperation of a detailed report consisting of borelog charts, soil profiles, results of field & laboratory tests, their analysis and recommendation for design of foundations and submission in triplicate.
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