EP0451520A3
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1993-09-29
Method of determining the progress and the amount produced in open-pit mine using satellite geodesy
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1985-04-18
Method and apparatus for surveying ground
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1986-02-12
Method and system for generating shear waves and compression waves in the earth for seismic surveying
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1996-03-05
Trailerable earth digging apparatus
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1985-11-07
Earth boring apparatus having cutter wheel and endless bucket means
IL66073A0
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1982-09-30
Improvements in earth drilling devices and method
GB2065054B
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1983-06-22
Method for continuously excavating ground and conveying excavated earth in the vertical direction and an apparatus for carrying out said method
GB8300961D0
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1983-02-16
Combined bucket and frozen soil scarifier
EP0393197A4
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1991-01-02
Method of forming underground passage and tunnel excavator
GB2133821B
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1986-04-30
An obstacle-ground earth auger and in-line engineering method for excavating the obstacle ground
GB2142959B
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1986-04-16
A method in the excavation of underground caverns in rock
ZA832392B
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1986-07-30
Method of continuously excavating ground and conveying excavated earth in the vertical direction
JPS57209391A
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1982-12-22
Rotary excavator in base rock or soil base excavator
ZA815716B
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1982-08-25
A method for continuously excavating ground and conveying excavated earth in the vertical direction and an apparatus for carrying out said method
JPS57151795A
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1982-09-18
Method of improving earth and sand excavated in method of construction of shielding excavation
ZM4581A1
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1981-12-21
Method and means in earth drilling
GB2200673B
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1990-02-28
Constructions for the explosive formation of ditches in the ground
JPS56135697A
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1981-10-23
Discharge of excavated soil in blind shielding method
AU550578B2
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1986-03-27
Earth and rock drilling
GB2154636B
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1987-10-28
Improved precast concrete pile and method of placing it in the ground
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1993-07-30
Device and method for making a gap in the face of an underground excavation.
ZA877422B
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1988-06-29
Earth strata bolts or anchorages
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1983-06-29
Providing boreholes in ground for piles
JPS5572599A
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1980-05-31
Method of preventing ground from sinking in shielding excavation
JPS52120501A
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1977-10-11
Method of granulating and conveying excavated earth and sand