Geo Technical Investigation Specs_Golf Link Area_October 2012.Doc

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    Geot echni cal I nvest i gati on ( Gol f Li nk) Shangr i La, Hambant ota, Sr i Lanka, Oct 2012

    GEO-TECHNICAL INVESTIGATION FOR THE PROPOSED SHANGRI-LA RESORT ATHAMBANTOTA_EXTERNAL WORKS

    It is proposed to develop the land of the attached plan for a Resort. The project consists of bridges,canals, roads and a golf link with other necessary infrastructure.

    A necessity has therefore arisen to carry out Geo-Technical investigation to ascertain the subsoilconditions and determine the parameters for the foundation design of the proposed structures.

    The client has decided to call for quotations from those who have necessary experience to carry outGeo-Technical investigations and you are hereby invited to participate in this tender.

    The Geo-Technical investigations will consist of

    For Bridges

    (i) Surveying and locating the position of the boreholes as per the attached plan.Execution of 4 boreholes (BH 2,3,4 & 5) up to 10m from ground level and execution of 02boreholes (BH 1 and 6) through the bed rock to a 1m depth and if the bedrock is notencountered beyond a depth of 30m then terminate further advancement of drilling.

    (ii) Carrying out SPT test continuously at first 3m depth from existing G.L and thereafter at 1 mintervals on overburden at each borehole to establish continuous strength profile of thesubsoil.

    (iii) Collecting sufficient number of disturbed and undisturbed soil samples required for thelaboratory tests.

    (iv) Diamond coring through the bedrock, storing the core samples in core boxes andphotographing them.(Approximately 1m depth through the hard rock at each specifiedborehole)

    (v) Carry out necessary laboratory tests [Natural Moisture content, Particle sizedistribution(Sieve Analysis, Hydrometer), Bulk density, Specific Gravity, Consolidation,Chemical analysis of ground water & Microbiological analysis of ground water]

    (vi) Complete Geo-Technical report with the following:(a) Borehole logs with SPT-N values and other remarks.(b) Subsoil profile across the boreholes.(c) Description of subsoil condition.(d)All the results of laboratory analysis and tests.(e) Design recommendation for foundation system including bearing capacities and

    possible settlement due to the bridge loads. In case of recommending pile foundations,bearing capacities at the recommended pile termination depth and skin friction valuesfor each type of soil layer should be indicated.

    (f) The report should be prepared by an experienced foundation engineer whose nameand qualification and should be given with the offer.

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    Geot echni cal I nvest i gati on ( Gol f Li nk) Shangr i La, Hambant ota, Sr i Lanka, Oct 2012

    For the Golf Links

    (i) Advance 4 boreholes(BH 7 to 10) of 8m deep with Standard Penetration testing at 1mintervals, (for stability analysis)

    (iii) Carry our necessary laboratory tests [Particle size distribution (Sieve Analysis, Hydrometer),

    Natural Moisture content, Atterberg limits, Standard Proctor compaction test, Field density](iv) Complete Geo-Technical report with the following:

    (a) Borehole logs with SPT-N values and other remarks.(b) Subsoil profile across the boreholes.(c) Description of subsoil condition.(d) All the results of laboratory analysis and tests.(e) Design recommendation for stability of the existing formation & new formation.

    The above work has to be done as per the details given in this document:

    1. The Tenderers are advised to inspect the site and acquaint themselves with the scope andconditions under which this investigation work has to be executed under this Contract. No claimwhatsoever would be entertained by the Client for the tenderers failure to inspect prior totendering and obtain whatsoever information required for submitting the quotations.

    2. The specification for site investigation and laboratory testing and analysis shall be as perrelevant British Standards.

    3. Client reserves the right to reject any or all tenders received and the decision of the Client shallbe final as regards award of Tender. The Tender will not necessarily be awarded to the lowestbidder. Certificates of work carried in the recent past shall be submitted along with the Tender.

    4. It is the responsibility of the Contractor to take all precautions regarding the safety of thepersonnel working under this contract and workman should be adequately insured against anyinjuries etc. whilst attending to works. Client shall not be liable for any damages caused in thisregard

    .5. The period of completion of works including the submission of reports will be 30 days from the

    date of issue of letter of Award.

    6 No extra work shall be done without the approval of the Client for any extra work items, whererates are not available in the quotation. Such rates are to be negotiated by Client for suchitems. a day work schedules and the overhead component that will be adopted in such ratesshould be indicated in your offer. Clients decision regarding the rates of extra works shall befinal.

    7. Whilst attending to the work, the Contractor shall take adequate precautions so that nodamages will be caused to the adjacent buildings or properties. Any damage caused shall bemade good at the Contractors expenses.

    8. A completed quotation for the above described work to be forwarded to by 7th December 2012.