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In all situations, consideration must be given to the possibility of the deterioration of piled foundations due to aggressive substances in soils, in rocks, in ground-waters, in the sea and in river waters. Piles in a river or marine structures are also exposed to potentially aggressive conditions in the atmosphere, and they may be subjected to abrasion from shifting sand or shingle, or damage from floating ice or driftwood. In considering schemes for protecting piles against deterioration due to these influences, the main requirement is for detailed information at the site investigation stage on the environmental conditions. In particular, adequate information is required on the range of fluctuation of river or sea levels and of the groundwater table. In the latter case, the highest levels are required when considering the likely severity of sulphate attack on concrete piles or the corrosion of steel piles, and the lowest possible levels are of considerable importance in relation to the decay of timber piles
Reinforcement is provided to enable the pile to resist the bending moment developed during pickup and transportation, the vertical load, and the bending moment caused by a lateral load.
Sl Name and address of the consultant Discipline in which consultancy service offered Remarks No. 1. ACME CONSULTANTS PVT. LTD 10-MIDDLETON ROW, Kolkata-700071 PH. 2294676/2294858 Structural/ EC Arch/Accoustics Environmental HVAC Electrical/ Illumination 2. A.P. Jain Structural/ WC E-641, Mayur Vihar Arch/Accoustics Phase-II, Delhi-91 Quantity Surveying Contract Management 3. ARCH SOLUTIONS Structural/ CC Flat No.403, … Read more
The construction of a pile foundation requires a careful choice of piling system depending upon the subsoil condition and load characteristics of the structure. The permissible limits of total and differentials settlement, unsupported length of the pile under scour and any other special requirements of the project are also equally important criteria for adoption. For … Read more
Allowable Load— The load may be applied to a pile after taking into account its ultimate load capacity, group effect, allowable settlement, negative skin friction and other relevant loading conditions. Bored Cast In-situ Pile — A pile is formed by boring a hole in the ground by a percussive or rotary method with the use … Read more
In the case of bars in tension, a standard hook has an anchorage value equivalent to a straight length of 16 times dia. of the bar and a 90-degree bend has an anchorage value of 8 times dia. of the bar. The anchorage values of standard hooks and bends for different bar diameters are given … Read more