Box jacking - Opema
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Box jacking

Box jacking without cutting rail traffic

The need to cross under a circulation route, mainly a railway, has posed problems inherent to circulation from the beginning, which over time have been resolved according to technical development and the possibility of using adequate machinery.

 

The impossibility of suppressing the traffic during the execution of the work for the underpass is a fundamental premise, and from there all the solutions have started.

 

The execution of an underpass by hydraulic thrust, consists of the construction of the masonry in the vicinity of the final location and subsequent translation by hydraulic thrust across the track, to its final position, so as to minimize the impact to the tracks and therefore to the railway traffic. For this, the work is located and built nearby, on a concrete platform (slip screed) and once the required resistance has been achieved, the thrust is carried out using hydraulic cylinders that transmit the efforts to a reaction wall and to the ground itself.  At the same time, the land is emptied so that the stability of the railway is not endangered. Prior to the push and to maintain the circulation of the trains, the shoring of the railway or railway is placed.

APEO DESVIO

Provisional bypass bridge

APEO DESVIO CON VELOCIDAD DE PASO 60 KM-H

Provisional bypass bridge with a passing speed of 60 km/h

APEO TRAVESIA

Provisional bridge in bundle of railways

APEO VIA CHILENA

Provisional bridge on the Chilean railway

APEO VIAS A DISTINTA ALTURA

Provisional bridge on railway at different heights

APEO VIAS DE GRAN LONGITUD

Provisional bridge on long railway

APEO VIA SENCILLA

Provisional bridge on single railway

APEO VIAS EN CURVA

Provisional bridge on curved railway

EMPUJE CAJON BAJO AUTOVÍA

Box jacking under highway

EMPUJE CAJON BAJO CARRETERA

Box jacking under road

EMPUJE CAJON BAJO PLAYA DE VÍAS

Box jacking under track beach

EMPUJE CAJON BAJO VIA

Box jacking under track

PASO INFERIOR EN ZONA INUNDABLE

Underpass in flood zone

CILINDROS HIDRAULICOS DE EMPUJE

Hydraulic  push cylinders

EQUIPO DE EMPUJE DE AJONES

Drawer pusher equipment