Скачать или смотреть Mainmark | JOG and Teretek® Used to Raise and Re-level Three Business Units in East London

A 7,706m2 business park in Rainham, Essex had slowly subsided over a period of around 30 years. Built on made ground, the subsidence was causing foundation issues resulting in unlevel buildings and significant cracking in walls.

Manor Way Business Centre, located in a busy area of East London, is home to multiple businesses. The three business units that required urgent attention measured a combined 3,280m2 with the worst affected building having subsided by 208mm at its lowest point. The building needed to be returned to a -80mm contour as further lift past this point did not bring additional benefit.

Initial investigations carried out by Mainmark, using Pagani Geotechnical Equipment, identified that the ground was weak and highly variable across the site. Demolishing and rebuilding was not an option as the ground still needed treatment. This left two options for the site owner: Piling or geopolymer resin injection.

Piling would have caused a large amount of disruption and noise pollution as it meant excavation and pouring new concrete piles. This made it an unviable option as it would have been too invasive, time consuming and expensive. Mainmark’s unique combination of non-invasive Teretek® resin injection and JOG Computer-Controlled Grouting was the only true option for strengthening the ground and achieving the required lift, while allowing all tenants to remain on-site, avoiding serious disruption and cost.