Indian Port Rail And Ropeway Corporation Limited Tender

Earthwork in filling in Embankment Fill and Prepared Subgrade of formation including guide bunds, around buried type abutments, bridge approaches, trolley refuges etc using contractor's earth of approved quality as per RDSO guidelines for design /Construction of formation on Indian Railway track issued vide letter no. RS/G/108/Heavy Axle Load dated 26.10.2016 (using A/B1/B2 group soil (with CBR value of 5 or more generally but not less than 4 in isolated cases) or C group soil (with CBR value of 3 or more generally but not less than 2 in isolated cases) compacted at 97% of MDD in Embankment Fill and using A/B1/B2 group soil with CBR value of 7 or more generally but not less than 6 in isolated cases compacted at 98% of MDD in prepared subgrade), procured from outside railway land including site clearances, setting out and demarcation, benching, initial compaction of subsoil after levelling the surface after site clearance, spreading loose earth in layers of maximum 30 cm thickness using grader up to extra width of 0.5 m beyond designed profile, compaction using vibratory compactors, top and side dressing and removal of extra earth from sides to provide final formation as per designed profile as per RDSO Guidelines. The rate shall include cutting of trees with girth upto 30 cm, making good the pockets and depressions left in soil during clearing and uprooting of jungle/trees at site and initial compaction of sub-soil thereafter. The rate shall not include cutting of trees of girth beyond 30 cm and compaction (excluding initial compaction of sub-soil mentioned above), which shall be paid separately. The minimum Ev2 Criteria as mentioned in the guidelines of 2009 is not applicable. The rate shall include cost of all field and laboratory tests including those required for subsoil but excluding CBR tests which will be paid vide separate BOQ item.

Embankment fill and prepared subgrade with Group A Soil

Note for Item 1001: 1. The group of soil to be used in embankment fill shall be locally available soil in different stretches along the alignment. 2. Please note that Shrinkage Allowance shall be deducted as per provisions of para 7.1.1.5 of RVNL Standard Specifications. 3. The Latest guidelines for Design / Construction of formation on Indian Railway track, issued vide RDSO lr. No. RS/G/108/Heavy axle load dated 26.10.2016 shall be adopted for this item. The basic instructions (other than those contained in the latest guidelines dated 26.10.2016) detailed in GE: G-1 of 2003 and GE:0014 of 2009 shall continue to apply. 4. In case embankment fill is made using A group soil, prepared subgrade of 500 mm thick shall also be made with A group soil and no blanket layer shall be provided. 5. In case embankment fill is made using B1 group soil, 350 mm thick prepared subgrade shall also be made with B1 group soil and 150 mm thick blanket shall be provided over the prepared subgrade. Payment for blanket layer shall be made under item No. 1005. 6. In case embankment fill is made using B2 group soil, 500 mm thick prepared subgrade shall be made with B2 group soil and 250 mm thick blanket shall be provided. Payment for blanket layer shall be made under item No. 1005. 7. In case embankment fill is made with C group soil no prepared subgrade will be made with soil and 500mm thick blanket shall be provided to act as prepared subgrade as well as blanket layer. Payment for blanket layer shall be made under item No. 1005. 8. The quantities indicated for sub item no. 1001 (a), 1001(b), 1001 (c) and 1001 (d) are tentative and may vary depending upon actual availability of the soil for use in embankment formation and hence variation in quantities shall be determined combining quantities of item no. 1001(a), 1001(b), 1001(c) and 1001(d) for applicability of new rates as per GCC clause 12.3.