Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
158 words
A procedure for forming a hardened underground vertical wall which comprises progressively lowering into the ground a framework having a first set of spaced orifices directed generally horizontally and a second set of spaced orifices directed vertically downward, said first and second set of orifices arranged substantially in a common plane, applying to the orifices a source of highly pressurized water to create earth-eroding jets to form a progressively deeper groove in the earth as the framework is lowered, releasing high pressure air in the region above the jets so that the resulting mixture of water and earth is forced by the action of bubbles upwardly and out of the groove, disconnecting the sources of water and air after the groove has reached the desired depth, forcing liquid grout through the orifices as the framework is progressively raised until the groove is substantially filled and the framework is completely withdrawn, and allowing the grout to harden in place.
Claim 2
Dependent Claim
158 words
A procedure for forming a hardened underground vertical wall which comprises progressively lowering into the ground a framework having a first set of spaced orifices directed generally horizontally and a second set of spaced orifices directed vertically downward, said first and second set of orifices arranged substantially in a common plane, applying to the orifices a source of highly pressurized water to create earth-eroding jets to form a progressively deeper groove in the earth as the framework is lowered, releasing high pressure air in the region above the jets so that the resulting mixture of water and earth is forced by the action of bubbles upwardly and out of the groove, disconnecting the sources of water and air after the groove has reached the desired depth, forcing liquid grout through the orifices as the framework is progressively raised until the groove is substantially filled and the framework is completely withdrawn, and allowing the grout to harden in place.
Claim 3
Dependent Claim
152 words
A procedure for forming a hardened underground vertical wall which comprises progressively lowering into the ground a framework having a first set of spaced orifices directed generally horizontally and a second set of spaced orifices directed vertically downward, said first and second set of orifices arranged substantially in a common plane, applying to the orifices a source of highly pressurized water to create earth-eroding jets to form a progressively deeper groove in the earth as the framework is lowered, releasing high pressure air in the region above the jets so that the resulting mixture of water and earth is forced by the action of bubbles upwardly and out of the groove, and after the groove has reached the desired depth, progressively raising the framework while pouring a grout material into the groove until the groove is substantially filled and the framework is completely withdrawn, and allowing the grout to harden in place.
Claim 4
Dependent Claim
152 words
A procedure for forming a hardened underground vertical wall which comprises progressively lowering into the ground a framework having a first set of spaced orifices directed generally horizontally and a second set of spaced orifices directed vertically downward, said first and second set of orifices arranged substantially in a common plane, applying to the orifices a source of highly pressurized water to create earth-eroding jets to form a progressively deeper groove in the earth as the framework is lowered, releasing high pressure air in the region above the jets so that the resulting mixture of water and earth is forced by the action of bubbles upwardly and out of the groove, and after the groove has reached the desired depth, progressively raising the framework while pouring a grout material into the groove until the groove is substantially filled and the framework is completely withdrawn, and allowing the grout to harden in place.
Claim 5
Dependent Claim
31 words
The procedure of claims 1 or 2 wherein the framework is lowered and raised on support means placed in the ground, said support means serving as a guide for the framework.