KIIFB - INVESTIGATION WORK FOR THE APPROACH ROAD OF KALLOORIKKADAVU BRIDGE IN KANNUR DISTRICT

Amount

Observed data 1 Collection of sub-grade soil sample at 500m interval carefully by excavating pit of area 1.0*0.6m through overlying bituminous and granular layer or from subgrade of formation area as directed by the engineer in charge for laboratory test and filling back and compacting the excavated pit to lines and levels with excavated materials as directed by the departmental officer at site.

Observed data 2 Conducting Soil Classification test, Standard Proctor Test,and CBR test as per the IS Code guidelines and making report of one soil sample

Observed data 3 Turning movement survey at THREE ARM Junction: Conducting turning movement survey at junction for one day for peak hours (7am to 11 am and 3.30 pm to 7.30 pm) by recording the classifed volume count in the prescribed format, including provision for engaging technicians and setting up of station etc and compiling the data and submitting the same in hard and soft copy etc. complete as per the instructions of PWD officials

Observed data 4 Study of pavement composition by cutting open pit at tar edge to get the details of layers (thickness and type ) of pavement composition - at one location as suggested by the engineer in charge carefully by excavating pit of area 1.00x 0.60m through overlaying bituminous and granular layer including BC, DBM/BM, WMM and GSB at tar edge and refilling and compacting the excavated pit to lines and levels with excavated materials as directed by the departmental officers at site and reporting the pavement composition with photographs and measurements specifying the type of layers

Observed data 5 Detailed topographic survey using Total station/mobile Lider and preperation of site plan of minimum of 15m on either side of the centre line and taking cross section details at 25m intervals on straight roads and 10m interval on curves ( survey includes details of all features as mention in the scope of the in plane terrain work within the limit of the survery). The survey shall be include establishing DGPS control points at starting and ending of the project in pairs and at 4 KM intervels (in pairs) in plane and rolling terrain and 2.5 Km intervels (in pairs) in hilly terrains.IT shall also include establishing inter visible traverse control points not more than 250m apart with accuracy of at least 1:10000 and desirable 1:20000 in distance measurement. Elevation of each other control points connected to MSL of GPS Bench Mark using precision levelling. Seperate bench marks need not be established. Including taking sufficient colour copy prints.(5 Nos) for junctions

Observed data 6 Establishing DGPS control points onTOR steel bar of 10 mm dia fixed in RCC pillar of size 20X20X70cm embeddded in concrete M15 up to a depth of 40 cm and the balancce 30 cm above the ground shall be painted yellow

Observed data 7 Establishing traverse control points with elevations on pillar of size 15cmX15cmX60cm M20 grade RCC pillar with a nail fixed on the top surface. The pillars shall be embedded in the concrete.Spacing 250 M apart as a bench mark - control pillar. The spacing shall be maximum 250 m apart. No seperate bench mark need to be established.

Subsoil Investigation 56.1.a Mobilization including transportation of all necessary plant and equipments and materials for boring, field testing and sampling and demobilization after completing work Using Machine Boring

56.17.1 Providing access to the site, clearing site and making good for erecting and conducting soil testing tranfers within the site and for any other temporary arrangements to be erected within the area in connection with conducting soil testing

56.2.a Setting up boring rig at each borehole locations including carrying all necessary plant, equipment and materials of boring and field tests and collection of samples at each borehole location Using Machine Boring

56.3.a.1 Boring with rotary power drilling equipment's in all types of soil having N value less than 50 excluding hard rock soft rock, or medium rock for strata upto 10m. Including conducting necessary S.P.T and recovery of un disturbed soil samples at 5m.intervals. For ordinary soil.

56.3.b.1 Boring with rotary power drilling equipment's in all types of soil having N value less than 50 excluding hard rock soft rock, or medium rock for strata for next 10m upto a depth of 20m. Including conducting necessary S.P.T and recovery of un disturbed soil samples at 5m.intervals. For ordinary soil.

56.3.c.1 Boring with rotary power drilling equipment's in all types of soil having N value less than 50 excluding hard rock soft rock, or medium rock for strata for next 20m upto 30m depth. Including conducting necessary S.P.T and recovery of un disturbed soil samples at 5m.intervals. For ordinary soil.

56.3.d.1 Boring with rotary power drilling equipment's in all types of soil having N value less than 50 excluding hard rock soft rock, or medium rock for strata above 30m depth. Including conducting necessary S.P.T and recovery of un disturbed soil samples at 5m.intervals. For ordinary soil.

56.5.a Boring through all classes of rock excluding hard rocks having N value greater than 50 using tungsten carbide drilling bit In land

56.7 Conducting standard penetration test (SPT) in borehole at any depth 3*25

56.8 Recovering disturbed samples and preserving the same in air tight sample containers including waxing, labeling, packing, storing including cost of containers as per IS code 3*25

56.6 Recovering undisturbed soil samples using thin tube sampler of 75mm to 100mm internal dia 500mm length conforming to relevant IS code at any required depth including cleaning the borehole etc complete 3*14

56.11.a Compilation of all field data with recommendation for a suitable foundation after conducting necessary lab tests (reports in triplicate) for 5 boreholes

G S Infrastructure

NIYAS K

THE URALUNGAL LABOUR CONTRACT CO-OPERATIVE SOCIETY