Method is for producting a vertical wall or column in ground and involves formation of vertical groove and filled with water, bentonite and possibly cement in order to stabilise wall during digging of groove
NL1016663C1
Device for sealing drill hole during and after drilling through wall, on opposite side of which there is water with pressure of up to ten atmospheres involves baseplate with central opening placed against wall and secured by anchors
NL1015346C2
Removal method for free anchor length of grouted anchor sunk into the ground, involves heating free anchor length to form point of weakness
NL1015053C2
Leak repair system for wall of trench is applied to leak point to stop flow of water and allow injection of hardening compound to plug leak
NL1014385C1
Tool for measuring diameter of underground cement body produced by 'Jet Grouting' technique, is inserted through borehole before cement has set.
EP1081289A1
Apparatus and method for measuring an underground construction element
NL1010967A1
Measuring shape and dimensions of underground elements, especially jet grout columns
NL1003072C1
Method for inserting foundation-component in ground
NL9302028A
Assembly of reinforcement elements to be embedded in liquid, pourable, settable material such as concrete mortar, and crossbar therefor
NL8802247A
Watertight ground layer formation method - passes expanding injector through inserted pipe and retracts pipe to allow expansion
NL7903935A
Dam wall formed in trench - by placing H=section beams, sealing meeting ends and pouring concrete around reinforcement placed between
