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Upington River Bank Stabilization | 2011 – 2023

Upington River Bank Stabilization | 2011 – 2023

2023 check-in

Before the river work in Upington started.

Take a look at photos of the Riverbank Lodge problem before Gabion Baskets assisted with a project design proposal and costed solution. What made it easier was that the client was also assisted with practical on site training and shown the ease of erecting the structure, he sourced the rock, labor and TLB and project managed the job himself with our site trainer/ supervisor.

Please contact Japie Van Heerden – 082-772 2759 for any further information.

Rock in Upington supplied by Willie – 083-7215857 of Sandvishawe BK.

Initial damage from the storms in early 2011.

Before construction started on site.

A complete overview of the project

Take a look at photos of the Riverbank Lodges (Client – Mr. Japie Van Heerden) problem before Gabion Baskets assisted with a project design proposal and a costed solution for material supply and on site practical training of local workers. We did the full engineering design and B.O.Q. We also supplied the late Mr. Philani Maphumalo to site for the necessary practical on-site training, the client sourced the rock, labor and TLB and project managed the job himself with our site trainer/supervisor during 2011.

Before

Damage from storms in early 2011

Temporary works to hold the embankment back earlier 2011

Before construction started on site

Before construction started on site

Take a look at the detailed plans that were created for this project.

Gabions, Reno Mattresses and Geotextiles delivered to site – 17 September 2011

We can see the Gabion Basket products being offloaded, checked and prepared for safekeeping and delivery site.

Site clearing and excavation proceeding for Gabion structure – 22 September 2011

First Gabion Rock Supplied to site – 23 September 2011

The rock used in gabion installations is 100-250mm size un-weathered, with a minimum density of 2.6tons/m3, gabion void ratio of 65% solids, 35% voids, thus with a bulk gabion density of 1.6tons per m3. Unselected rock normally has about 30% waste or undersized material, thus please allow for 2tons of rock per m3.

The rock is neatly packed into the basket by hand to achieve a neat front face appearance.

Angular blasted rock is best due to the interlock strength, rounded rock can be used but does not give the same compressive strength as blasted rock, and is much more difficult to achieve a neat looking facing.

Environmentally it does not make good sense to remove rock from the area as it effects local animal habitats and can enhance erosion in. streams.

Geotextile and River mattress foundation laid – 27 September 2011

The geotextile layer is very important to prevent the migration of finer bed soils through the mattress layer.

We use a 210g/m² layer of Bidim to prevent soil movement. The Bidim is placed at all gabion and soil contact faces, behind, below and on the sides of the gabion structure.

Overlapping 300mm where necessary.

Filling of first River mattresses proceeding – 30 September 2011

Rock for mattresses are also 100-67% of layer depth, so 200mm for the 0.3m depth. The mattress thus has at least two layers of rock to prevent soil scour in the event of high water velocities.

Mattress lids are supplied separately so as to have them out of the way during infill of rock.

From a labor point of view we allow 1.0m³/man per day for gabions and 1.5m³/man/day for mattresses, as mattresses have now bracing and neat front facings that need to be maintained.

Installation of the Reno Mattress apron proceeding well – 3 October

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term.

Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long-term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including, bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to access the lower levels.

Structure proceeding well – 6 October 2011

13 October 2011

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term. Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including , bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to assess the lower levels.

14 October 2011

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term.

Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including , bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to assess the lower levels.

20 October 2011

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term.

Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including , bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to assess the lower levels.

14 November 2011

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term.

Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including , bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to assess the lower levels.

10 December 2011

On-site training for installation is taking place with our gabion toolkits showing the correct rock size and quality to be used and the correct lacing together of adjoining mattress units, using the Binding wire supplied with the materials.

These units are laced together using the preferred lacing technique along all common joins so that the structure become one integrated monolithic wall.

To counter all future loads imposed on it in the long term.

Base baskets and mattresses are all Class A Galvanised and PVC coated to prevent long term corrosion of steel wire along the water’s edge.

Higher basket layers do not require this due to infrequent flooding to this level.

Already they are achieving 30m³/day using 30 people on site, indicating production rates of 1man/m³/day, for the erection of the basket, including , bracing, lacing and packing.

The rain has already started in Johannesburg this last weekend, which fills the Orange river upstream, so they are trying to complete the structure foundation layers before the water level in the river rises and makes it more difficult to assess the lower levels.

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[vc_row][vc_column][vc_column_text]Take a look at photos of the Riverbank Lodge problem before Gabion Baskets assisted with a project design proposal and costed solution. What made it easier was that the client was also assisted with practical on site training and shown the ease of erecting the structure, he sourced the rock, labor and T.L.B. and project managed the job himself with our site trainer/supervisor ;- Please contact Japie Van Heerden – 082-772 2759 for any further information. Rock in Upington supplied by Willie – 083-7215857 of Sandvishawe BK.[/vc_column_text][vc_column_text]

Before the riverwork in Upington started.

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Initial damage from the storms in early 2011.

[/vc_column_text][jig_vc][justified_image_grid row_height=250 height_deviation=50 caption=off overlay_icon=on orderby=menu_order filterby=off filter_style=buttons filter_orderby=title_asc last_row=flexible load_more=click load_more_text=”LOAD MORE” load_more_count_text=none load_more_mobile=no initially_load=12 load_more_limit=6 ng_gallery=23][/jig_vc][us_separator size=”small”][vc_column_text]

Temporary works to hold the embankment back earlier this year.

[/vc_column_text][jig_vc][justified_image_grid row_height=250 height_deviation=50 caption=off overlay_icon=on orderby=menu_order filterby=off filter_style=buttons filter_orderby=title_asc last_row=flexible load_more=click load_more_text=”LOAD MORE” load_more_count_text=none load_more_mobile=no initially_load=12 load_more_limit=6 ng_gallery=24][/jig_vc][us_separator size=”small”][vc_column_text]

Before construction started on site.

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