Instalacion de Puente Chiapas Mexico

8/10/2019 Instalacion de Puente Chiapas Mexico

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Localizacin de la obra

Piled Foundation for the Chiapas Bridge

in Mexico

Wolfgang G. Brunner

Maschinen

God Morgen mine Damer og Herrer !


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Localizacin de la obraLocation of State Chiapas in Mexico


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Localizacin de la obraState Chiapas in Mexico

Chiapas BridgeChiapas Bridge


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Localizacin de la obra

OaxacaOaxacaChiapasChiapas

VeracruzVeracruz

Puente ChiapasPuente Chiapas

Procedimiento no. 1Procedimiento no. 1Chiapas 1

Procedimiento no. 2Procedimiento no. 2Chiapas 2

Location of the Jobsite


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Datos generales de proyectoData of Chiapas Bridge

Length 1208 m

Height above water 10 m

Maximum total length of

drilling string 148.5 m

Maximum water depth 92.5 m

Drilling depth 56.0 m

Contract amount including

VAT 100 million US $

Execution period of

foundation 7 month


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Datos generales de proyectoConstruction of Pier Foundations

Stage 1:Fabrication on land of steel jacket on its side comprising four 2.80

m dia. steel tubes and struts.Stage 2:Floating jacket into position of pier with side buoyancy tanks.Stage 3:

Up-ending of jacketDriving four 1000 mm dia. tubular support leg piles withstructural connections to jacket.Stage 4:Construction of working platform on top of jackets, liftinghydraulic casing oscillator onto platform and fixing it ontoplatform. Installation of 2500 mm dia. drill casing comprising asacrificial section jointed onto the bottom of the main casingsection.


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Stage 5:Mounting and connecting BA 2500 top drill on drill casing.

Stage 6:Installation of drill head, ballast rods and air-lift pipe assemblywith casing guides.Stage 7:

Drilling down with air-lift flushing as the casing oscillator rotatesthe 2500 mm dia. drill casing and jacks it down with its powerfulhydraulic rams.In order to reduce the frictional resistance on the drill casing,three hydraulically operated roller bits are extend laterally duringdrilling. They underream the casing shoe.Embedment of drill casing in conglomerate up to 20m.Stage 8:Drilling with fully extended roller bits to final depth.


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Stage 9:Lifting top drill off drill casing, removing drill string and drill head.

Cutting drill casing inside steel jacket tube approximately 5 mabove bottom end of steel tube.Stage 10:Raising upper section of drill casing and holding it in position withcasing oscillator.Stage 11:Installation of reinforcement cage, which extends from the base ofthe pile to 5 m above the top of the enlarged pile head.Stage 12:

Lowering tremie pipe assembly into drill casing and concretingpile to top of reinforcing cage.Stage 13:Extracting upper drill casing string.

Stage 14:Constructing remaining three piles.


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Steel Jackets:

Fabrication

Launching

Floating into Position


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Jacket Manufacturing Yard


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Fabricacin de jacketsFabrication of Jackets


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step 1: pull jacket

step 1: retract jacket

step 1: float jacket

winch

Launching of Jacket


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Botado de los jackets 8, 7, 6 y 5

Jacket no 7Jacket no 8

Jacket no 5Jacket no 6

Launching of Jacket


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Step 1: float to position

Step 5: remove floating body

Step 3: continue turningStep 2: turn through water inflow

Step 4: vertical position Step 6: install steel pileswith diesel hammer

Floating Jacket into Position


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Transporte

length70m

Floating Jacket into Position


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Ziele der BodenverbesserungFloating Jacket into Position


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Drilling with RC DrillDrilling with RC Drill:

Installation of Casing

Mounting of RC Drill

Drilling in Conglomerate and Rock


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Principle of RC (Reverse Circulation) System

0

-20

-20/25

-30/35


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Preparation of Drill Casing

Dia 2500 mm


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Installation of Casing with Oscillator


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Installation of Casing and RCD Drill

RC Drill BA 2500


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Installation of Casing and Drilling into Rock

oscillator BV 2500

casing dia 2500 mm

Rock

RCD drill rig BA 2500

open hole drilling


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Stabilizer and Flanged Drill Pipes


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Stabilizer and Flanged Drill Pipe


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Stabilizer and Flanged Drill Pipe


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Drilling with RC Drill and Oscillator


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Drilling with RC Drill and Oscillator


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movable

roller

hydraulic power pack for movingout the underreamer rollers

rock

casing

Underreaming the Casing during Drilling


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Drilling at Jacket No. 8


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oscillator BV 2500

casing dia 2500 mm

Rock

cutting drill casing with diver, max water depth 80 mand recover the cut off casing section

Remove Casing

cut casing by diver


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Completion of Pile:Completion of Pile:

Installation of Reinforcement Cage

Placing Concrete


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Pipes for concrete

inspection



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casing dia 2500 mm

Rock

placing reinforcement cage into the borehole

uncased bore in rock


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Concreting the Pile

conc

rete

concrete

tremie pipe

casing dia 2500 mm

Rockuncased bore in rock

conc

rete

concrete

C S


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Concrete Pipe Line from the Shore to the Pier

R k d Pil


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Raked Piles

Pile diameter: 1300 mm Inclination: 1: 3Pile length: up to 50 m


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Bridge Deck ConstructionBridge Deck Construction:

Construction of Pier Heads

Pushing Bridge Deck

C ti f Pi H d


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Concreting of Pier Head



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22.7.2000




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Pier Overview


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Pier 8

Pier 7

Pier 6

Pier Overview

Installation of Bridge Deck by Jacking


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Abutment9

152.0 m

Pier6

Pier7

Pier8

Abutment9

152.0 m

Pier6

Pier7

Pier8

jacking attachment

Fabricacin de dovelasInstallation of Bridge Deck by Jacking


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Fabricacin de dovelasCompleted Chiapas Bridge


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Completed Chiapas Bridge


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Thank you for your kind attention !

Takk for Oppmerksomheten !

Documents

Instalacion de Puente Chiapas Mexico