Gabion wall design and construction

[longisland]

I've been approached by a builder to fix a house which the house compound has caved due to movement of the gabion wall. <br>The house floor level is about 8 feet higher than the adjacent house seperated by a course of gabion(3 feet thick, 8 feet height) and followed by a 750mm common drain adjacent to the gabion. The house nearest column is about 15 feet away from the gabion, which is the kitchen portion (single storey) from previous extension 2 years ago. Based on the site inspection, my guess is the movement of the gabion is caused by the extra surcharge by the extension.<br>It's extremely difficult to take down the gabion and replace with a RC retaining wall&nbsp;&nbsp;due to site constraints; the space between the gabion abd the adjacent fencing is only 5 feet. We might risk causing a collapse to the kitchen if the gabion is to be taken down and also getting a potential law suit by the neighbour if any damage is caused to his property. On top of that, there is no space to build the toe for the retaining wall. <br>I'm thinking of leaving the gabion as it is and add another course of gabion ajacent to the existing one on the near side of the house. <br>The other option is to install sheetpile but it is out of question due to site and budget constraints. We ha only 50 grand of budget to work on.&nbsp;&nbsp;<br>The extent of the repair is roughly about 50 feet. The house is on a cut ground of hard clay by visual inspection.&nbsp;&nbsp;<br><br>Suggestions & input are welcome.&nbsp;&nbsp;

 

[ishvaaag]

Yes, I think adding another wall in your side by whatever the means should be the solution. Union between both would be very desirable. And care during execution.

 

[AMalagon]

My idea is to excavate the retaining soil, in order to install some layers of metalic -or plastic- grids tied to the gabion's grid and then to fill again with excavated soil or with imported material.

I tryed to put a figure in this message for your ilustration, but it was impossible to do. My e-mail is ingeosin@latino.net.co, if you want send me your e-mail.