underground ventilation
structures

Mantella Trading 310 (Pty) Ltd has a proud history in the installation of specialised underground support, such as Sidewall Support, Secondary Roofsupport, Pinning and Strapping and Rocprops.

Underground ventilation structures

Mantella Trading 310 (Pty) Ltd owns the patent for the Roll-A-Wall Ventilation Stoppings.

This industry proved stopping system can be erected by a team of four trained people in under two hours. This modular system holds many advantages to clients by improving rate of construction, thus reducing down time due to ventilation problems and less demand on the transport system because of the light weight and bulk of the components.

Specialised underground support

Mantella Trading 310 (Pty) Ltd has a proud history in the installation of specialised underground support. as per below:

Handheld drilling equipment is used on the ground or when required due to roof height from specifically designed scaffold constructed by our in-house Engineering team.

Externally approved, the Roofbolters (Twinboom & Singleboom) currently operating at various Mines.

They have been adapted by our Engineering team to install both roof and sidewall bolts according to our contract requirements.

Completed the installation of wire netting, cable anchors, bolt installation, Oslo-strap pinning and Shot-creting, required to support various highwalls.

Constructed and installed steel protection canopies at various mines to protect conveyor structures in areas where roof support is not a viable option, due to the height of roof, severe roof conditions or restricted access in the area.

Roll-A-Wall: This zinc type structure can be erected in a single shift.

Stonedust Barrier Frame Installation Kit: This is an easy and safe expandable barrier; that is installed without the use of ladders. The Barrier comes in Single and Double frames. It can extend outwards; depending on the Mining width, creating a 0.5m spacing between bags and Pillars at all times.

Concrete Cast-A-Door: This replaces all brick structures by means of a Heavy Duty steel door being casted in it’s place. The Cast-A-Door not only helps with Ventilation but also with storage underground.

Shutter placement & Casting: Mantella Trading 310 (Pty) Ltd has a proven track record in the construction of blockwork and Shot-Crete walls as ventilation stoppings.

Shutter placement & Casting: Mantella Trading 310 (Pty) Ltd has a proven track record in the construction of Ingwe Spec 140kPa and 400kPa Shot-Crete walls.

Concrete Cast-A-Air Crossing: This allows for all the brick structures (Sidewalls and Roofs) to be replaced with 30mPa Concrete,allowing a reduction in damages and leakages and increase the strength of the air crossing.

Pedestrian Belt Bridge: This mobile steel structure can be erected in a matter of minutes to provide safe access across a moving conveyor belt structure.

Tunnel Door:This zinc clad steel structure provides pedestrian access between two ventilation districts.

TYPES OF UNDERGROUND CIVIL CONSTRUCTION

Mantella Trading 310 (Pty) Ltd has it’s roots in Civil Construction. Therefore the company has maintained it’s presence in the construction of the following underground civil construction work.

Bore hole sealing

Sealing of both vertical and horizontal boreholes

Cement grouting of gaps

Sealed several gaps between walls and coal roofs with non-shrinking high strength cement grout.

Chemical grouting of strata

Sealed hundreds of leaking walls or have pre-grouted the surrounding strata to prevent water from seeping through. The sealing agent is a two component polypropylene based expanding flexible material. Water leaks of hundreds of litres per minute across a gap of 80mm have been successfully stopped.

Gunnite

Both wet-crete and dry-crete application of gunnite material is possible.

Concrete structures

Our teams experience and capabilities range from simple surface beds to drainage sumps and waterproof walls or seals. With the introduction of a professional engineer into Mantella Trading 310 (Ltd) Pty, we are now able to design and certify all types of civil structures. We have developed techniques to place and transport 35MPa ready-mixed concrete up to 140m underground over several hundred meters with pumps or kilometers in flameproof concrete mixer machines. We also have a purpose built shuttering system used in building waterproof concrete walls.

Mantella Trading 310 (Pty) Ltd has been in existence since 1977, rendering a service in the Witbank and Highveld Coalfields. The company has it’s roots in Surface and Underground Civil Construction (Shot-Crete, Containment Seals, Brick Air Crossings and Stoppings).

We are a B-BEE Level 1 company (Click to view)