Deilmann-Haniel GmbH has always been a pioneer when it comes to new technologies or methodologies. We have played a leading role in the development and introduction of many new technologies.
| 1884 | Development of the German tubbing by Haniel & Lueg Ltd |
| 1913 / 1925 | Sinking of the freeze shafts Bohrt 1 & 2 (502m freeze depth) and Wallach 1 & 2 (549m freeze depth) by Gebhardt and König Ltd |
| 1955 / 1960 | Freeze shafts Rossanray 1 & 2 with a welded rolled steel tubbing liner and concrete backfill |
| 1956 / 1960 | Auguste Victoria 7 freeze shaft with a floated double-walled steel lining and asphalt backfill |
| 1957 / 1961 | Freeze shaft Wulfen 1 & 2 using a composite shaft lining with a concrete filling between the inner and outer steel welded cylinders and asphalt backfill |
| 1963 | Auguste Viktoria 8: first steel / concrete composite lining with asphalt backfill, temporary support and flexible outer lining made from concrete blocks |
| 1964 | Замораживание грунтов до глубины 625 м на стволах Freeze depth of 625m in the Allan Shafts 1 & 2 in Saskatchewan |
| 1976 / 1977 | Siegmundshall Shaft: first steel liner tightly welded steel plating with mortar backfill |
| 1981 | Sinking and lining of the Y Shaft in Gardanne with 10m inner diameter and 1150m depth |
| 1979 / 1985 | Voerde shaft: steel-concrete-steel inner composite lining with an asphalt joint and a supporting flexible outer lining made from concrete blocks (600 m freeze depth) |
| 1979 | Worked on the theoretical solution for freeze sinking through the cracked zone in the transition area between the salt strata and bedrock. The practical solution was implemented at the Riedel 2 Ventilation Shaft as treatment of the cracked zone |
| 2001 | DIN 21500 shaft lining - concept and design |
| 2009 | Development of a shaft lining concept for water pressures up to approximately 10.5 MPa consisting of an outer welded steel liner and inner bolted steel plate liner with concrete fill for Canadian potash mining |