------- TRENCHLESS OPERATIONS AT RAUBEX INFRA TRENCHLESS OPERATIONS

With over five years of combined experience, Raubex infra has the capabilities to ensure that your horizontal directional drilling (HDD) project is completed.

Since 2012 Raubex Infra has provided Horizontal Directional Drilling (HDD) solutions to numerous clients throughout Africa. At Raubex Infra, we approach each project with steadfast professionalism. We take pride in the experience of our personnel, quality of our equipment, and our commitment to deliver the highest quality of project available.

Raubex Infra has the capabilities to complete projects up to 700 mm in diameter and lengths of up to 300 metres. Whether your projects are large, small, require a shore approach, or are through hard rock Raubex Infra approaches each with the same level of service, professionalism, and commitment. We are dedicated to delivering projects that are focused on safety and the success of our employees, customers, business partners, suppliers, as well as the environment.

------- TRENCHLESS OPERATIONS AT RAUBEX INFRA

THE HORIZONTAL DRILLING (HDD) PROCESS

Horizontal Directional Drilling (HDD) is a steerable trenchless method that is utilised to install underground pipes, conduit, and cables along a designed bore path beneath various types of obstacles. HDD minimises restoration and allows infrastructure to be installed in areas inaccessible by traditional open-cut methods. HDD is completed through three major steps.

------- TRENCHLESS OPERATIONS AT RAUBEX INFRA ENGINEERING & BORE PLANNING

Bore Plan

Utilising survey data, Raubex Infra will produce a detailed route design and provide visibility to underground utilities and soils. The bore plan ensures that the product pipe is installed at the correct alignment, depth and avoids conflict with existing utilities. Clients are provided access to review proposed bore plans prior to drilling operations to ensure that all considerations for the project are met.

Bore Progress Monitoring

Raubex Infra provides specialised monitoring of the bore progress. Documentation of daily construction records ensures that your project is in compliance with pipe bend radius, project specifications and permits.

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PIT-LAUNCHED DRILLING

The pit-launched drill is the ideal solution for difficult hard rock, sewer, water, electrical, phone/CATV, and service and lateral line installations. The pit launched drill can be operated from a manhole or small launch pit. The powerful unit is capable of completing bores up to 60 metres and installing pipes up to 400mm in diameter. Its light weight, compact design makes it easy to transport from one site to another.

The pit launched drill offers the power of percussion during drilling operations to complete boring in even the toughest soil conditions. Compressed air is delivered through the reciprocating drill head. The percussive action of the drill head powers through obstructions and rocky soils keeping boring on time and on target.

------- TRENCHLESS OPERATIONS AT RAUBEX INFRA PIPE PLOUGHING

From small diameter cable or conduit, to large diameter gas mains, Raubex Infra offers a minimal impact installation method through static ploughing. Raubex Infra has the capabilities to install pipe up to 14 inches in diameter and unlimited lengths without obstructions. Ultimate customer satisfaction and successful project completion are a top priority for Raubex Infra. Our team of in-house design experts and engineers ensure that our equipment is engineered and fabricated to allow for accurate placement of piping through pipe ploughing without surpassing the manufacturer’s recommendation. Pipe ploughing is an effective method for the installation of main line natural gas distribution main line replacement and extensions, as well as telecom cable and conduit.

------- TRENCHLESS OPERATIONS AT RAUBEX INFRA

PIPE JACKING

A system of directly installing pipes behind a shield machine by hydraulic jacking from a drive shaft, such that the pipes form a continuous string in the ground. Usually personnel are required inside the pipe to perform the excavation or soil removal process. The excavation can be performed manually or mechanically.

CONCRETE BOX JACKING

Box jacking is similar to pipe jacking, but instead of jacking tubes, a box shaped tunnel is used. Jacked boxes can be a much larger span than a pipe jack with the span of some box jacks in excess of 20m. A cutting head is normally used at the front of the box being jacked and excavation is normally by excavator from within the box.

------- TRENCHLESS OPERATIONS AT RAUBEX INFRA MOLE DRILLING

Impact moles can be used for a wide range of underground installations. We work with major contractors and companies directly to carry out their underground pipe, cable and ducting installations quickly, efficiently and with minimum disruption.

We can take care of the whole underground cable installation process, from start to finish, including searches, plans, licence to bury cable underground, drilling, installation and reinstatement.