Construction of Yard Drain in connection with Improvement of MINJ, SPC,HMP,NM,MKHI,SFPR,BGMU,MLW,MAH,BEJ,MSTH,RAK,BLM, BRTA, JBG, JKH station yard under jurisdiction of ADEN-II/HRI.

Item Breakup - A-DSR 2021

Design, Manufacture, Supply & Installation of factory-made (wet cast) Precast U Shape storm water drain (SWD) heavy/medium duty type of size 450 X 450mm (Internal dimensions) with 4nos. weep holes in each precast segment of 2.0m length. Precast U Shaped segments shall consist of high strength reinforced cement concrete duly steam cured in a controlled environment and manufactured by using high performance self-compacting concrete of M-50 grade using cement of Gr. 53 as per IS: 12269 and TMT steel reinforcement bar of Grade Fe-500D as per IS: 1786 (minimum reinforcement content shall be 8.0 Kg per running metre length). The precast drain shall 1 be designed considering maximum of all possible loads (All types of Load coming while placed between the tracks considering traffic block/traffic movement on track, considering saturated/Unsaturated soil condition, all type of static & Dynamic load considering minimum track centre of 4.265m) . Length of each precast drain segment shall not be less than 2.0m. Concrete shall be cast in leakproof steel moulds maintaining precise product dimensions. Design shall confirm to IS/BIS / Indian Railway Concrete bridge code / JIS standards/Guidelines/Codes. Precast drain shall take into account expected handling and erection stresses etc. The product shall have tie/groove shape joint 10-20 mm width X 25 mm depth groove on both sides for jointing two precast drain segments. The precast segment shall consist of special in-built inserts at appropriate location for safer and faster installation. Joint shall be filled up with factory made non-shrink grout material of approved make. Precast Factory shall have in-house NABL approved testing facility for quality checks and shall have ISO 9001, ISO 14001 and ISO 45001 certification for design, manufacture and dispatch of products and shall be ZED certified. The precast manufacturer should have proven track record in production & supply of precast products. The rate is applicable for supply of precast product at various stations of MB Division and is inclusive of all loading, leading, unloading, handling, rehandling, all applicable taxes, installation and jointing, curing etc. complete item. The rate is exclusive of Earthwork in excavation, dewatering, PCC (1:3:6), benching concrete (M-30) inside drain to provide required longitudinal slope & leading surplus earth outside Railway boundary, which shall be paid under relevant DSR Items."(under traffic block)"

Design, Manufacture &Supply & installation of factory-made (wet cast)Precast perforated Cover of size 500X 572 X 130mm suitable for precast Drain of size 450 X 450 mm (Internal dimensions). Precast Cover shall consist of high strength reinforced cement concrete duly steam cured in a controlled environment and manufactured by using high performance self- compacting concrete of M-50 grade using Cement of Gr. 53 as per IS: 12269 and TMT steel reinforcement bar of Grade Fe-500D as per IS: 1786(minimum reinforcement contents hall be 2.48 Kg/m). Design shall confirm to IS/BIS/Indian Railway Concrete bridge code / JIS standards/ 2 Guidelines/ Codes. Precast product shall take into account expected handling and erection stresses etc. The rate is inclusive of all loading at Factory, leading, unloading in vicinity of site approachable by road. Precast Factory shall have in-house NABL approved testing facility for quality checks and shall have ISO 9001, ISO14001 and ISO 45001 certification for design, manufacture, dispatch of products and shall also be ZED certified. The precast manufacturer should have proven track record in production & supply of precast products. The rate is applicable for supply of precast product at various stations of MB Division and is inclusive of all loading, transportation, Lifting, leading, unloading, handling, re handling, multiple track crossing(if applicable),all labour, installation at site, all Taxes etc."(no any extra payment shall be paid by railways.)" under traffic block Above/

Excavation in tunnel by micro tunnel boring machine for installing 1200 mm dia. sleeve or carrier for sewer line/storm water drain to correct grade and alignment using slurry or mixed shields across and under the Railway tracks including excavation, jacking, driving pit and receiving pit as per requirement and necessity for this method and the equipment considering the 1 ground strata up to any depth upto 12 m below ground level (up to the invert of the pipe to be installed) in any type of strata including marshy land/soft clay/moorum/rock/boulder of any strength and hardness, shoring of any type including sheet piles or concrete piles, dewatering, disposal of muck/excavated material to any place as directed by the Engineer. The work includes the lowering of pipe, placing in position, ensuring proper alignment and survey as per requirement with equipments such as total station, jacking, sealing the pipe joints.1200mm dia

Approved 1200 mm dia. RCC sleeve pipe confirming to jacking pipe standards like JSWAS A-6, ASTM C-76, SS 183 or AS 1342 but not less than NP-4 class under IS 458supplied, jointed 2 & installed to correct level, gradient and alignment by pipe jacking as specified in micro tunneling method. The grade of pipe will be NP-4 or greater including design/ drawing and getting approval of competent authority. The rate includes all materials i.e. cement, steel, all labours, plants equipments, tools etc. Design / Drawing to be submitted by the contractor to the Railway design deptt. for prior approval. 1200 mm dia