EP 3702581 A1 20200902 - METHOD OF STABILIZING A WALL WITH EXPOSED LAYERS OF CLAY
Title (en)
METHOD OF STABILIZING A WALL WITH EXPOSED LAYERS OF CLAY
Title (de)
VERFAHREN ZUR STABILISIERUNG EINER WAND MIT FREILIEGENDEN TONSCHICHTEN
Title (fr)
PROCÉDÉ DE STABILISATION D'UN MUR À L'AIDE DE COUCHES EXPOSÉES D'ARGILE
Publication
Application
Priority
EP 19159329 A 20190226
Abstract (en)
A clayward-facing side of a perforated support structure is placed against a wall with exposed clay. Perforations allow fluid transport through the perforated support structure from an opposing side of the perforated support structure to the clayward-facing side. After bringing the clayward-facing side in physical contact with the wall ,the opposing side is exposed to a water-containing fluid, whereby allowing the water containing fluid to contact the wall through the perforations. Water is absorbed in any clay that is exposed to the perforations, which causes local swelling of clay comprised in wall parts that are exposed to the perforations. The shear strength of the saturated clay prevents the clay from migrating though the perforations to the opposing side.
IPC 8 full level
E21B 43/10 (2006.01); E21B 43/08 (2006.01)
CPC (source: EP)
E21B 43/086 (2013.01); E21B 43/105 (2013.01); E21B 43/106 (2013.01); E21B 43/108 (2013.01)
Citation (applicant)
- US 5366012 A 19941122 - LOHBECK WILHELMUS C M [NL]
- US 5901789 A 19990511 - DONNELLY MARTIN [NL], et al
- US 6315040 B1 20011113 - DONNELLY MARTIN [NL]
Citation (search report)
- [X] GB 2482703 A 20120215 - KRZYSIEK JAN [PL], et al
- [A] US 2007227733 A1 20071004 - VERCAEMER CLAUDE J [FR], et al
- [A] WO 2018191783 A1 20181025 - BERTANI ROMOLO LORENZO [AU]
- [A] US 2004251033 A1 20041216 - CAMERON JOHN [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3702581 A1 20200902; AU 2020227184 A1 20210916; AU 2020227184 B2 20220915; WO 2020173881 A1 20200903
DOCDB simple family (application)
EP 19159329 A 20190226; AU 2020227184 A 20200224; EP 2020054787 W 20200224