SPECIAL CONDITIONS & SCHEDULE OF ITEMS FOR PILE FOUNDATION OF ROOF COVERING OVER SWIMMING POOL
Special Conditions
1.0Unless otherwise provided in the schedule of quantities, the rates tendered by the contractor shall be all-inclusive and shall apply to all heights, levels, depths, leads, lifts etc.
2.0The rates for all items of work, unless clearly specified otherwise, shall include the cost of all labour, materials, and other inputs involved in the execution of the items.
3.0The Architectural, structural and other services drawings for the work shall at all time be properly correlated before executing any work and no claim whatsoever shall be entertained in this respect.
i)The contractor shall submit shop drawings of staging and Shuttering arrangement works for Approval of Engineer-in-charge.
ii)The contractor, through his engineers, shall ensure quality construction in a planned and time bound manner. Any sub-standard Material /work beyond set out tolerance limits shall be summarily rejected by the Engineer-in-Charge.
4.0The contractor shall have to make approaches, to the site, if so required and keep them in good condition for transportation of labour and materials as well as inspection of works by the Engineer-in-charge. Nothing extra shall be paid on this account.
5.0The Building work shall be carried out in the manner complying in all respects with the requirement of relevant byelaws of the local body under the jurisdiction of which the work is to be executed.
6.0The work shall be carried out in such manner so as not to interfere or affect or disturb other works, being executed by other agencies, if any. He shall arrange his work with that of the other in an acceptable and coordinated manner and shall perform it, in proper sequence to the complete satisfaction of the Engineer-in-Charge. Any damage done by the contractor to any existing work shall be made good by him at his own cost. Otherwise the same shall be got done at his risk and cost.
7.0The contractor shall leave such recesses, holes, openings etc. as may be required for the electric, air-conditioning, fire-fighting and other related works for which inserts, sleeves, brackets, conduits, base plates, clamps etc. shall be provided by the contractor without any extra cost to the department unless otherwise specifically mentioned and the contractor shall fix the same at the time of casting of concrete, stone work and brick works if required, and nothing extra shall be payable on this account unless other wise mentioned in the item/contract.
8.0The contractor shall make his own arrangements for obtaining electric connections and make necessary payments directly to the department concerned. The department will however make all reasonable recommendations to the authority concerned in this regard.
9.0The contractor shall be responsible to arrange at his own cost all necessary tools and plants required for execution of this work.
10.0No foreign exchange shall be made available by the department for the purpose of procurement of equipment, plants, machinery, materials of any kind or any other items required to be carried out in execution of work.
11.0The contractor or his authorized representative should always be available at the site of work to take instructions from Engineer in charge, and ensure proper execution of work.
12.0No work shall commence in the absence of contractor’s engineers and they shall certify in writing about the correctness of layout alignment of structure and shall ensure stability of all structural such as shuttering, scaffolding and other related items.
13.0All work and materials brought and left upon the ground by the contractor or by his orders for the purpose of forming part of the works, are to be considered to be the property of the DDA and the same are not to be removed or taken away by the contractor or any other person without consent in writing of the Engineer-in-charge but the DDA is not to be in any way responsible for any loss or damage which may happen to or in respect of any such work or materials either by the same being lost or damaged by weather or otherwise.
14.0Royalty at the prevalent rates and all other incidental expenditure shall have to be paid by the contractor on all the materials like boulders, stone metals, earth sand bajri etc. collected by him for the execution of the work directly to the concerned revenue Authority of the Sate or Central Government. His rates are deemed to include all such expenditure and nothing extra shall be paid.
15.0The contractor shall execute the different items simultaneously, as far as possible, so that minimum breakage and repairs are involved.
16.0All items such as CC, RCC items etc. in basement up to plinth level, irrespective of its height shall be measured in the relevant item of work in foundation and plinth.
17.0Contractor may be required to execute the work under foul condition and nothing extra for executing the work in foul condition is payable
18.0The contractor shall take all necessary precautions to prevent any nuisance or inconvenience to the owners, tenants of adjacent properties and to the public in general and to prevent any damage to such properties and any pollution of environment and waterways. He shall make good at his own cost and to the satisfaction of the Engineer-in-Charge, any damage to roads, paths, cross-drainage works or public or private property whatsoever caused by the execution of the work or by traffic brought thereon by the contractor. Utmost care shall be taken to keep the noise level to the barest minimum so that no disturbance as far as possible is caused to the occupants/users of adjoining buildings.
19.0No payment will be made to the contractor for damage caused by rains, or other natural calamity or other unforeseen reasons during the execution of the works and no such claim on this account will be entertained by DDA.
20.0Existing drains, pipes, cables, overhead wires, sewer lines, water lines and similar services encountered in the course of the execution of the work shall be protected against the damage by the contractor at his own expense. The contractor shall not store materials or otherwise occupy any part of the site in a manner likely to hinder the operation of such services.
21.0The surplus soil/earth shall be disposed of as per directions of Engineer-in-Charge at locations as indicated in the item.
22.0Contractor shall give the Engineer-in-charge on the 4th day of every month, a progress report of work done in previous month vis-a-vis target and programme for current month of the work. The progress of work shall be reviewed periodically by the Engineer-in charge with the contractor and shortfalls, if any, sorted out. The contractor shall thereupon take such action as may be necessary to bring back his work to schedule without additional cost to the department.
23.0All materials which are specified to be tested at the manufacturer’s works shall satisfactorily pass the tests in presence of the authorized representative of Engineer-in-charge before being used in the work. In case all requisite testing facilities are not available at the manufacturer’s premises, such testing shall be conducted at laboratory approved by the Engineer-in-charge.
24.0The work shall be executed and measured as per metric dimensions given in the Schedule of Quantities, drawings etc. (FPS units wherever indicated are for guidance only).
25.0The contractor shall carefully survey the site and identify the trees which are coming within the alignment of the building and also the trees which are required to be cut which may be falling within the space required for forming slopes/ benching, etc. for excavation of the basements and submit these derails to the Engineer-in-Charge. The DDA shall arrange permission for cutting of trees from the competent authority and get them cut separately from other agency.
26.0The rate shall be inclusive of working under water and adverse conditions and including pumping out or bailing out water, unless otherwise specified in the nomenclature. This will include water encountered from any source such as rains, floods, sub-soil water table or any cause whatsoever. Sub-soil water table at work site is reported to be beyond 30 M metre (avg.) below the ground level as observed in the month of Nov. 2007. The water table is likely to rise during rainy season. In order to avoid possibility of basement floor getting uplifted/damaged due water pressure, the contractor shall lower the ground water table below the proposed foundation level by boring tube wells all around the proposed building using well point sinking method or any suitable method as approved by Engineer-in-charge. Sub soil water table shall be maintained at least 50 cm below the P.C.C. level during laying of P.C.C., water proofing treatment, laying of basement raft and beams including filling of earth/sand under the basement floor. The water table shall not be allowed to rise above base of raft level until completion of outer retaining walls including waterproofing of vertical surface of walls and back filling along the walls up to formation level and till adequate load is imposed from structure to resist uplift pressure. However, the contractor should inspect the site and make his own assessment about sub-soil water level likely to be encountered at the time of execution and quote his rates accordingly. Nothing extra on this account whatsoever shall be paid to him. The sequence of construction shall be got approved by the Engineer-in-charge.
27.0Factory made materials shall be procured only from reputed manufacturers or their authorized dealers.
28.0Wherever work is specified to be done or material procured through specialized agencies, their names shall be got approved well in advance from Engineer-in-charge. Failure to do so shall not justify delay in execution of work. It is suggested that immediately after award of work, contractor should negotiate with concerned specialized agencies and send their names for approval to Engineer-in-charge. Any material procured without prior approval of Engineer-in-charge in writing is liable to be rejected. Engineer-in-charge reserve his right to get the materials tested in laboratories of his choice before final acceptance.
29.0Before start of work, the contractor keeping in view that space available is limited, shall furnish a construction yard layout, specifying area for construction, positioning of machinery, material yard, cement and other storage, steel fabrication yard, site laboratory, water tank, conveyers belt, etc. and seek formal approval of the Engineer-in-Charge. The contractor shall not stack building material/ malba on others land or road or on the land owned by any other authority and he shall face penal action as per the rules, regulation and bye-laws of the said body or authority. The Engineer-in-Charge shall be at liberty to recover the amount due but not paid to the concerned authorities on the above account from any amount due to the contractor including amount of the security deposit or retention money in respect of this contract or any other contract.
30.0Area for the labour huts will be located in consultation with Engineer-in-Charge as limited site is available. However, site office to accommodate technical & clerical staff of DDA shall be Constructed within the space available. The site office shall have at least one telephone line & fax machine for proper communication. In addition the tenderer shall provide one project vehicle with Driver for use by DDA Site officers for inspection and visit to various places for project related works. The vehicle shall be available from 8 AM to 8 PM every day including Sunday & Holidays. On an average 3000 Km per month shall be the travel distance for the project vehicle including the running cost & maintenance cost.. Tenderers shall quote their rates accounting for above mentioned provisions for smooth execution of the project and nothing extra shall be paid on this account.
31.0The contractor shall take all necessary measures for the safety of traffic during construction and provide, erect and maintain such barricades, including signs, marking, flags lights and flagman as necessary, at either end of the excavation/embankment and at such intermediate points, as directed by the Engineer-in-charge for the proper identification of construction area. He shall be responsible for all damages and accidents caused due to negligence on his part.
32.0A detailed program in the form of precedence network diagram is to be submitted to the Engineer-in-Charge within 15 days of commencement of work.
The program chart will have to be updated fortnightly and submitted to the Engineer-in-Charge on fortnightly basis.
33.0The submission for approval by the Engineer-in-Charge of detailed programs or the furnishing of such particulars shall not relieve the contractor of any of his duties or responsibility under the contract. This is without prejudice to the right of the Engineer-in-Charge to take action against contractor as per terms and condition of the agreement.
34.0In order to adhere to the program, the work may have to be carried out in more than one shift and no claim on this account shall be entertained. Contractor will give advance notice in writing to Engineer-in-Charge for doing any work in odd hour.
35.0Contractor shall be allowed 21days for mobilization from the date of issue of letter of commencement for the work. During this period contractor will mobilize plant & equipment including testing and commissioning and complete other preliminaries like construction of site office approval of quarry, mix design, trial mix etc. The mix design and testing of trial mixes shall be done in any of the laboratories listed below for the approval of Engineer-in-Charge in consultation with design consultant.
a)IIT Delhi
b)National Council of Cement & Building Material, Ballabhgarh
c)C.R.R.I., New Delhi.
36.0The contractor shall take average 10 photographs per month of 4”X8” of the work as directed by the Engineer-in-Charge and supply two sets each month. Nothing extra shall be payable to the contractor on this account.
37.0Some restrictions may be imposed by the security staff/ Delhi police on the working and for movement of labour, materials etc.
i)The movement of trucks and vehicles shall be regulated in accordance with rules and regulations as approved by competent authority.
ii)The contractor shall be bound to follow all such restrictions/instructions and nothing extra shall be payable on this account.
iii)No claim whatsoever will be entertained by the department on account of any, restrictions imposed by the security agencies in execution of work.
38.0Condition for Cement
38.1Cement required for the work shall be procured by the contractor.
38.2The contractor shall procure, 43 grade (conforming to IS: 8112) ordinary Portland cement as required in the work from reputed manufacturers of cement having a production capacity of one million tones or more per annum, such as ACC, Ultra Tech J.P.Rewa, Vikram, Birla Uttam, Gujarat Ambuja & Cement Corporation of India etc. as approved by Ministry of Industry, Government of India and holding license to use ISI certification mark for their product and whose name shall be got approved from Engineer-in-charge. Supply of cement shall be taken in 50-kg bags bearing manufacturer’s name, or his registered trademarks if any and grade and type of cement as well as ISI marking. Samples of cement arranged by the contractor shall be taken by the Engineer-in-Charge and got tested in accordance with provisions of relevant BIS codes .In case test result indicate that the cement arranged by the contractor does not conform to the relevant BIS codes the same shall stand rejected and shall be removed from the site by the contractor at his own cost within, a week’s time of written order from engineer-in-Charge to do so. The cement can also be brought in drums & silos & weight shall be checked on the basis of total weight of the drum and the weight of empty drums. The packing of the cement bags shall be as per para No. 3.1.2.5 of revised CPWD specifications 2002 for cement mortar, cement concrete, RCC works (which supercedes the chapters 3, 4, & 5 of CPWD specification 1996 vol-II).
38.3The cement brought at site shall be fresh or not more than one month older from date of manufacture.
38.4The cement shall be brought at site in bulk supply of approximately 80 tonnes or more as decided by the Engineer-in-charge.
38.5Cement bags shall be stored in two separate godowns, one for tested cement and the other for fresh cement (under testing) constructed by the contractor at his own cost as per sketch at page 112 of General conditions of contract having (size of 8600 mm X 10500 mm) minimum & minimum height of wall shall be 2400 mm for storage of capacity of 80 Tonnes with weather proof roofs and walls. The size of the cement godown is indicated in the sketch for guidance only. The actual size of godown shall be as per site requirements and as per the direction of the Engineer in charge and nothing extra shall be paid for the same. Each godown shall be provided with a single door with two locks. The keys of one lock shall remain with Engineer-in-Charge or his authorized person and that of other lock with the authorized agent of the contractor at the site of work so that the cement is issued from godown according to the daily requirement with the knowledge of both the parties. The decision of the Engineer-in-charge regarding the capacity required/needed will be final. The account of daily receipt and issue of cement shall be maintained in a register in the prescribed Performa and signed daily by the contractor or his authorized agent in token of its correctness. The contractor shall be responsible for the watch and ward and safety of the cement godown. The contractor shall facilite the inspection of the cement godown by the Engineer-in-Charge at any time.