What is cast in situ bored piles?
Bored piles are steel reinforced concrete elements cast in situ used to transfer high loads through soil to deeper, more competent soil or rock stratum. Constructed with conventional rotary kelly bar plant, the drilling tooling is selected to suit the nature of the soils to be excavated.
How are bored piles constructed?
The large diameter bored piles are foundation structure characterized by a cylindrical shape with a diameter larger than 600 mm; manufactured by excavating ground through a rotary drilling equipment with a complete soil removal and cast in place by casting concrete into the borehole.
What is bored piling?
Bored piles are cylindrical concrete structures (with or without reinforcement) that are inserted into the ground using various methods. The length, diameter, material, configuration and arrangement of the bearing piles can be modified according to the intended use.
What is cast in situ concrete pile?
What is cast in situ concrete pile? Bored cast in situ pile is constructed by digging a hole in the ground by suitable means such as percussive or rotary method with the use of temporary or permanent casing or drilling mud. After that, the construction is finalized by filling the hole with reinforced concrete.
What is DMC method of piling?
While the other methods are comparatively expensive, DMC is a fairly cheaper method to install piles. The apparatus basically comprises a Tripod with pulley, winch machine, wire-rope, Chisel, drill pipes, tremie pipes, a vertical pump, and a pit where bentonite powder is mixed with fresh water.
How are piles constructed?
pile, in building construction, a postlike foundation member used from prehistoric times. In modern civil engineering, piles of timber, steel, or concrete are driven into the ground to support a structure; bridge piers may be supported on groups of large-diameter piles.
What are bored piles used for?
Bored Piles, also referred to as replacement piles or drilled shaft are widely used type of construction foundation that supports buildings, holding the frameworks carrying heavy vertical loads in place and transferring their bearing load to rock or soil layers with adequate bearing ability and acceptable settlement …
What does cast in situ mean?
Precast & cast-in-situ concrete are the product produced by casting concrete in a mould or formwork cured to get the strength of RCC elements. The cast-in-situ concrete is a standard concrete which is poured into the specific formwork on the site and cured to get the strength of RCC elements.
What are the differences between cast in situ pile and precast pile?
Precast concrete is one of them. The precast concrete is transported to the construction site, lifted and positioned at the predetermined place. The cast-in-situ concrete is a standard concrete which is poured into the specific formwork on the site and cured to get the strength of RCC elements.
How bored cast situ piles are constructed?
The bored cast situ pile construction initializes by digging a hole in the ground. The digging of the trench is done by suitable means such as revolving and percussive methods while using permanent or temporary casting or drilling mud. The construction gets complete by filling the hole with reinforced concrete.
What is the proposed type of pile?
The proposed type of pile is 1200mm dia. Bored cast-in-situ concrete pile. The boring work for the pile will be done by Hydraulic Rotary Rig/Winch. 2. SCOPE using partial depth casing and thereafter chiseling in hard rock. Concreting of pile as per approved drawings including reinforcements, compaction etc. all complete. 3. REFERENCES
What is the construction of a borehole pile?
Cased pile construction (To drill the borehole, casings are used to m aintain open the borehole). The next step is the construction of the pile: firstly, the reinforcing cage is lowered into t he hole and then concrete is cast. Each of these tools and machinery. material from the borehole, placing the reinforcement cage, and concreting the shaft.
What is the Code of practice for bored cast concrete?
List of Reference & Code of practice – IS 456: 2000 code of practice for Plain and Reinforced Concrete. IS 2911-1979 (Part-1, Section -2) Design and construction of Bored Cast In-Situ Piles. IRC:78-2000 Standard Specification for road and bridge works- Foundations