| SL# | Item Code | Item Description | Unit |
Rate for ZoneA Dhaka & Mymensingh Division |
Rate for ZoneB Chattogram & Sylhet Division |
Rate for ZoneC Rajshahi & Rangpur Division |
Rate for ZoneD Khulna & Barishal Division |
|---|---|---|---|---|---|---|---|
| DIVISION 31 : SUB-SOIL INVESTIGATION WORKS & DIGITAL SURVEY | |||||||
| 2221. | 31.5 | Mobilization and demobilization of boring equipment and man-power: at site (rotary hydraulic drilling rig comprising mud pump, drilling pipe, auto trip hammer, pulley, chain, wrange, sample collection devices (shelby tube, split spoon sampler) etc tools and plants; tripol for temporary camp, necessary work-force etc) (Once for one site) (Only after written advice from concerned design division/circle) | per site | 25785 | 25785 | 25785 | 25785 |
| 2222. | 31.6 | Sub - Soil investigation by 100 mm dia rotary wash boring and including collecting disturbed and undisturbed soil samples in numbers as required for classification of soil, conducting SPT using auto trip hammer, stratification of layers, analysing physical parameters of soils like Atterberg limits, specific gravity, gain size distribution(by wet seive, hydrometer if required) , ground water table location, direct shear test, unconfined compression test, unit weight(dry/weight), natural moisture content ; C - ф values and other strength parameters to ascertain bearing capacity , skin friction, end bearings etc at every 1.5m intervel as per respective national/international standards and entering all these data & information in necessary tables & graphs and finally furnishing them in the form of standard sub-soil investigation report with CD containing video of sub-soil investigation operation of concerned site duly signed by competent engineer & exploratory office. (Only after written advice from concerned design division/circle) | |||||
| 2223. | 31.6.1 | Bore hole depth from 0 to 20 m | per bore hole | 52846 | 52846 | 52846 | 52846 |
| 2224. | 31.6.2 | Additional charge for bore hole depth above 20.0 m and upto 30.0 m | meter | 900 | 900 | 900 | 900 |
| 2225. | 31.6.3 | Additional charge for bore hole depth above 30.0 m and upto 40.0 m | meter | 1028 | 1028 | 1028 | 1028 |
| 2226. | 31.6.4 | Additional charge for bore hole depth above 40.0 m and upto 50.0 m | meter | 1159 | 1159 | 1159 | 1159 |
| 2227. | 31.7 | Mobilization of pressuremeter test equipments such as Logger, High Pressured Pump, Control Cable, High Pressure Water Tube, High Pressure Hand Pump, Battery, Printer Paper (Only after written advice from concerned design division/circle) | per site | 8533 | 8533 | 8533 | 8533 |
| 2228. | 31.8 | Borehole Pressuremeter Test for measuring the elastic properties and stress state in rocks and soils. During measurement pressuremeter probe is inserted into a borehole of diameter from 70 to 90 mm, down to a depth of 50 m, where up to 20 MPa of pressure can be applied on the surrounding rock mass, depending on the soil condition. The result of measurement with pressuremeter, in rocks or soils, is stress - strain curve from which it will be possible to obtain and assess some of the properties in-situ stress state. From the data curve, among other characteristics, it will be possible to determine elastic modulus of rock, reload - unload elastic module, limit of plastic deformation, undrained shear strength, shear modulus and limit pressure. This item includes the necessary cost for entering all these data & information in necessary tables & graphs and finally furnishing them in the form of standard sub-soil investigation report with CD containing video of sub-soil investigation operation of concerned site duly signed by competent engineer & exploratory office. (Only after written advice from concerned design division/circle) *The test to be conducted in regular geotechnical boreholes. | per test | ||||
| 2229. | 31.8.1 | For first test | per test | 31458 | 31458 | 31458 | 31458 |
| 2230. | 31.8.2 | For each consecutive test after first test | per test | 25644 | 25644 | 25644 | 25644 |
