Specification And Tenders | Civil Engineering SSC JE (Technical) - Civil Engineering (CE) PDF Download

General Or Brief Specification 

Detailed Specifications

Detailed Specifications of Excavations, Filling, and Back Filling

Scope of Work

• The scope for work covered under these specifications pertains to the excavation of foundations, trenches, pits, and over areas in all sorts of soil, soft and hard rock, correct to dimensions given in the drawing, including shoring, protections of existing underground utilities of any, such as water lines, electric cables, etc.
• Dewatering and shoring if necessary, stacking the useful materials as directed within the lead specified, refilling around the foundation and into the plinth with selected useful excavated earth and disposing of the surplus earth/materials within the specified lead and finishing the surface to proper levels, slopes and camber, etc. all complete.

Site Clearance

• Before the earthwork is started, the area coming undercutting and filling shall be cleared of all obstructions, loose stones, shrubs, rank vegetation, grass, bushes, and rubbish removed up to a distance of 150 meters outside the periphery of the area under clearance. 
• This work is deemed to be included in the earthwork item rate, and no separate payment will be admissible.

Roots and Vegetation clearance

• The roots of trees, if any, shall be removed to a minimum depth of 60 cm below ground level or a minimum of 30 cm below formation level, whichever is lower, and the hollows filled up with earth leveled and rammed. 
• This work is deemed to be included in the earthwork items, and no separate payment will be admissible for the work. 
• Any material obtained from the site will be the property of the Government of India and the useful materials, as decided by the Engineer-in-charge, will be conveyed and properly stacked as directed within the lead specified.

Setting out and making profiles

• Masonry or concrete pillars will be erected at suitable points in the area to serve as benchmarks for the execution of the work. 
• These benchmarks shall be connected with G.T.S. or any other permanent benchmark approved by the Engineer-in-charge. 
• Necessary profiles with pegs, bamboo and strings or Burjis shall be made to show the correct formation levels before the work is started. 
• The contractor shall supply labor and materials for setting out and making profiles and Burjis for the work at his own cost and the same shall be maintained during the excavation work. 
• The Department will show grid coordinates or other reference points. 
• It shall be the contractor's responsibility to set out center lines correctly with reference to the drawings and install substantial reference marks. 
• Checking such alignment by the Department will not absolve the contractor from his responsibility to execute the work strictly in accordance with the drawings.

Excavation

• The contractor shall notify the Engineer-in-charge before starting excavation and before the ground is disturbed to enable him to take the existing level for the purpose of measurements. 
• The ground levels shall be taken at 5 to 15-meter intervals in uniformly sloping ground and at closer distances where local mounds, pits, or undulations are met, as directed by the Engineer-in-charge. 
• The ground levels shall be recorded in field books and plotted on plans, which shall be signed by the Contractor and the Engineer-in-charge before the earthwork is actually started. 
• The labor required for taking levels shall be supplied by the Contractor at his own cost. 
• The Contractor shall perform excavation in all types of soils, murrum, soft and hard rock, boulders, etc. 
• In foundation, over areas, and in trenches to widths, lines, levels, grades, and curves as shown in the drawing or lesser widths, lines, levels, grades and levels as directed by the Engineer-in-charge and per items in the schedule of quantities. 
• The item in the schedule of quantities shall specify the excavation in trenches or over areas.
• For this purpose, the excavation for any depth in trenches for a foundation should not exceed 1.5m in width or 10 sqm. The plan shall be described as excavation in foundation trenches. Excavation exceeds 1.5m in width and 10 sqm. On plan (excluding trenches for pipes, cables etc.) and exceeding 30cm in depth shall be described as excavation over areas.