Construction Updates_ Marine Piling - Procedure & Components

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MONDAY, 12 DECEMBER 2011

MARINE PILING - PROCEDURE & COMPONENTS

BCCCPL-piling contractors bcccpl.com/ pile foundation,cast-in-situ pile load test

Hydraulic Piling Rig aircompressorhire.com We Deal in Rent/Sale/Purchase of HR-180 Piling Rigs. C all 9818146468

Pile Foundations Pile foundations are the part of a structure used to carry and transfer the load of the structure to the bearing ground located at some depth below ground surface. The main components of the foundation are the pile cap and the piles. Piles are long and slender members which transfer the load to deeper soil or rock of high bearing capacity avoiding shallow soil of low bearing capacity The main types of materials used for piles are Wood, steel and concrete. Piles made from these materials are driven, drilled or jacked into the ground and connected to pile caps. Depending upon type of soil, pile material and load transmitting characteristic piles are classified accordingly. Classification of piles Classification of Pile with respect to Load Transmission and Functional Behaviour.

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PVE Piling & Drilling Rig www.pvepiling.com specialized piling & drilling rigs & hydraulic impact hammers

End bearing piles (point bearing piles) Friction piles (cohesion piles ) Combination of friction and cohesion piles Classification of Pile with respect to type of material. Timber Concrete Steel

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Composite Piles Classification of Pile with respect to effect on the soil.

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Driven Pile ( Displacement pile)

DAMP-

Bored Pile ( Non Displacement pile) SUBSCRIBE NOW: STANDARD

Classification of Pile with respect to Shore. On Shore ( Land Pile)

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April (3) June (2) May (4) March (6)

Off Shore (Marine Pile)

Marine Piling

PROOFING IN RESIDENTIAL BUILDING

Marine piling work differs from land piling work in many respects. Distance from land Depth of water Hydrostatic pressure and buoyancy

Materials used for damp proofing Definition of... Singly

Underwater currents

February (47)

Wave and swells

January (26)

Tidal variation

December (5)

Wind and storm

November (1)

Cyclone Existing navigation and possibility of diversion etc. Marine Piling Offshore Piling Works: This kind of piling works are mostly carried out in construction of various marine structures like jetties, harbours, ports, wharfs and bridges on river/sea that are away from land. Marine Piles can be installed by Tripod Rig.

constructionduniya.blogspot.in/2011/12/marine-piling-procedure-components.html

reinforced beam(Limit state method of design) Different methods of design of RCC 1.Working Stress Method 2.Limit State Method 3.Ultimate Load Method 4.Probabilistic Method of Desi... TOP DOWN

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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS Rotary Rig ( Wirth Rig or Ordinary Crawler Mounted Hydraulic Rig)

Tripod Rig Marine Piling Different methods commonly used for advancing the bore holes. End on Piling Gantry ( Temporary movable gantry ) Self elevated Platform ( Jack-up platform )

CONSTRUCTION Concurrent above and below grade construction Conventionally, buildings with underground basements are built by bottom-up ... WATER

Temporary fixed platform supported on temporary/ permanent piles. PROOFING FOR ROOFS Terrace is the most crucial segment of a building, and it is exposed to direct climatic variations, extremes of rainfall and structural ...

Jack Up Platform with Bailer & Chisel NEW

Temporary Movable Gantry with Bailer & Chisel

MATERIALS IN CONSTRUCTION (CONCRETE) The development and application of new materials in construction continually adds to the choices and decisions facing clients, designers and...

Temporary Movable Gantry with Bailer & Chisel FIREFIGHTING IN COMMERCIAL BUILDINGS DEFINITION OF FIRE: Fire is a chemical reaction, in which substance (fuel) combines with oxygen. The reaction is exothermic and usuall... MARINE PILING -

PROCEDURE & COMPONENTS Pile Foundations Pile foundations are the part of a structure used to carry and transfer the load of the structure to the bearing grou...

GANTRY


MATERIALS USED FOR DAMP PROOFING Damp proofing in

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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS Residential Building Material used for damp proofing 1. Property of the material An effective damp proofing materi...

Fixed Platform with Bailer & Chisel

Piling by Wirth Rig

• Fabrication A. Fabrication of Gantry B. Fabrication of Bracings C. Fabrication of casing D. Fabrication of Reinforcement • Transportation of Liner casing and Reinforcement cage. • Driving of Temporary Piles • Bracing of Temporary Piles • Placing of Wheel Chair and Wheel Blocks. End on Piling Gantry SEQUENCE OF WORK • Erection of Gantry and Components with equipments. • Guide Frame Fixing. • Installation of Casing. • Pile Boring and Chiseling. • Lowering of Reinforcement cage. • Tremie Lowering and Flushing. • Concreting of Pile. • Shifting of Gantry. • Recording of Data. End on Piling Gantry SEQUENCE OF WORK • Floating barge/ Pontoon ( 60t -200t) • Crane (capacity 40t-80t) • Vibro-Hammer (Static line pull 360 kN/400 kN) • Tug/Boat (500HP/160H.P.) • Material barge (100 ton capacity) • Gantry platform (complete structural steel assembly). • 5 t Capacity D/D winch with 6YDA Engine/ 3.5 t Capacity D/D winch with 4YDA Engine. End on Piling Gantry

STRUCTURAL MEMBERS REQUIRED FOR TOP-DOWN CONSTRUCTION (Top Down Construction- Part 2) Top Down Construction -Part 1 STRUCTURAL MEMBERS REQUIRED FOR TOP-DOWN CONSTRUCTION Design and construction principles for topdown ... MIVAN

(Aluminium Formwork) FORMWORK When concrete is placed, it is in plastic state. It requires to be supported by temporary supports and castings of desired...

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Major Equipments are Required • Piling booms • Bailors & chisels • Flushing system. • 200mm/250mm inner diameter tremie pipes • Concrete funnel (capacity 1cum) • Welding transformer -18 KVA • 40KVA/75KVA & 125KVA D.G. sets • Compressor (300 cfm.) End on Piling Gantry • Fixed Platform fabricated on land. • A’ Frame and winch machine mounted. • If required, counter weight shall be placed.


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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS • Fixed Platform will be placed in position by the help of land based crane. • Piles required for erection of gantry shall be done by crane barge using Vibro-hammer. • The crane barge shall be shifted and positioned at an accuracy of half meter. • The fabricated liners shall be held in position with help of Vibro-hammer & crane mounted on crane barge, which later shall drive the liner in the seabed. • Balance piles shall be done by gantry platform mounted on wheels. POSITIONING OF GANTRY / FIXED PLATFORM 20

GANTRY PILING GANTRY ERECTION Fabrication of Bracing

Liner rolling Welding of Liner plates

Cage being fabricated on elevated platform. Cover blocks tied in position

Spreader Beam

Temporary piles by Vibro with guide frame


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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS

Single Layer bracing

Two layer Bracing Double layer bracing

Pile Bracings

Details of Wheel Bock & Wheel Chair

Typical details of “A” Frame

Guide Frame Fixed at Gantry “A” Frame Guide Frame SETTING OUT OF PILE POINTS


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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS The pile point shall be marked from approved reference points and bench marks provided by the Client. Surveyor shall mark the exact pile point with the help of Total Station and accordingly guide frame shall be fixed accurately to Fixed Platform / Gantry. INSTALLATION OF PERMANENT CASINGS • M.S casings are fabricated on land. • Transported to the piling location through material handling barges. • Lifted by Crane & lowered into the guide frame until it rests on the sea bed. • Thereafter driven into the seabed by drop hammer up to the refusal, maintaining the verticality & position. • If found beyond the tolerance then it is retrieved and re-driven in position. • No boring commences until they are checked to be within tolerance. • The top and toe level of the installed permanent casing is recorded.

Liner

DRILLING OF BORE HOLE • Bailers and chisel mechanism is used for boring. • Boring in soil will be done using bailer till the rock level. • Chisel of appropriate weight is used for boring in hard rock. • Bailer is used for removing the muck from the pile bore. • Boring in hard rock is done until the depth in hard rock reaches two times the diameter of pile. • Throughout boring operations the excavated material is monitored and sampled as far as practical, for any visible changes in material make up. Sr. No Dia. Of Pile in Dia of Chisel Weight of Dia of Bailor in Weight of Bailor in mm in mm Chisel in tons mm tons 1 900 825 Above 2 .0 825 About 1.5 2 1000 925 2.0- 2.5 925 1.4-1.7 3 1100 1025 2.5-2.8 1025 1.7-1.9 4 1200 1125 2.8-3.0 1125 1.9-2.0 5 1300 1225 3.0- 3.3 1225 2.0-2.2

Details of Chisel & Bailor

Boring by bailor Boring by chisel REINFORCEMENT CAGE INSTALLATION


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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS • The reinforcement cage is fabricated in the cage fabrication yard. • Cover blocks of 75mm diameter are fixed at 4 no. per level at 3m vertical intervals throughout the pile length. • Reinforcement cage are fed to the ‘A’ frame from the barge with the help of crane. • These cages are lap welded/coupled at site and lowered up to the actual founding level. • An inspection is carried out as per the check list.

Lowering of reinforcement cage in pile casing PILE CONCRETING • Concrete is poured by Tremie Method • After placing the reinforcement cage, Tremie pipe (200mm dia, 1.5m long) elements are assembled and lowered inside the pile. • Tremie pipe connected to a hopper is held by ‘A’ frame. • Borehole is cleaned by air/ water flushing method till clear water is obtained. • The concreting shall be done by using the crane and bucket arrangement from the transit mixture to pile. • The concrete shall be poured into the tremie pipe hopper without interruption. PILE CONCRETING • The bottom of tremie pipe shall at all be embedded at least 3 m into the concrete as being cast into the pile the tremie segment will be progressively withdrawn during the process of concreting. The window (150 mm X 100 mm) shall be provided at pile cut-off level. As concrete is placed into the pile, a cross check shall be carried out comparing the actual vertical build up of the concrete in the pile, against the theoretical calculated build up concrete for the cast volume of concrete. The contaminated concrete shall be allowed to overflow till the good quality concrete is obtained (By visual inspection). PILE CONCRETING • Concrete pour register shall be maintained for all piles.The reinforcement cage is fabricated in the cage fabrication yard. • Cover blocks of 75mm diameter are fixed at 4 no. per level at 3m vertical intervals throughout the pile length. • Reinforcement cage are fed to the ‘A’ frame from the barge with the help of crane. • These cages are lap welded/coupled at site and lowered up to the actual founding level. • An inspection is carried out as per the check list.

Tremie lowering

SEQUENCE OF WORK Positioning of Jack Up. • Setting out of Pile Points. • Installation of Casing.


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Construction Updates: MARINE PILING - PROCEDURE & COMPONENTS • Pile Boring and Chiseling. • Lowering of Reinforcement cage. • Tremie Lowering and Flushing. • Concreting of Pile. • Shifting of Gantry. • Recording of Data. Piling By Self Elevated Platform ( Jack-Up) • Surveyor shall approximately mark the pile location by marker buoy with the help of total station. • The Jack up platform shall be shifted to the required location/position of the proposed pile location by a tug/ power boat. • Then the Jack-Up shall be positioned at an accuracy of half meter to the marked location with help of boats/tugs. • Then the Jack up anchors shall be released from Jack up and Jack up shall be placed in position by tug. Positioning of Jack Up. • Once the Jack up anchors are placed, the spuds of the jack-up shall be lowered till the sea bed level. Jack up shall be jacked up to appropriate level usually above the cutoff level of pile • Survey points shall be marked on the projected guide platform, fixed on to the jack-up platform. • Piling Boom along with Winch shall be centered & installed on the Jack – up platform.

Positioning of Jack-Up Platform with help of tug INSTALLATION OF PERMANENT CASINGS

PILING BY JACK-UP Posted by The Civil Engineer at 00:11 +3 Recommend this on Google

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