REAMING-EXCAVATION CONTROL EXECUTION METHOD

REAMING-EXCAVATION CONTROL EXECUTION METHOD

PROBLEM TO BE SOLVED: To conduct reaming excavation safely without having an adverse effect on excavating tools, etc., by collecting excavation data at the time of the excavation of a pilot pit, analyzing the excavation data and evaluating the properties of a baserock at every depth. SOLUTION: When...

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Hauptverfasser: KATOU SEISAKU, AOYAMA MASAICHI, KANEKO YUTAKA, AKIYAMA MASAO
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator KATOU SEISAKU
AOYAMA MASAICHI
KANEKO YUTAKA
AKIYAMA MASAO
description PROBLEM TO BE SOLVED: To conduct reaming excavation safely without having an adverse effect on excavating tools, etc., by collecting excavation data at the time of the excavation of a pilot pit, analyzing the excavation data and evaluating the properties of a baserock at every depth. SOLUTION: When a pilot pit is excavated, various excavation data such as rotational speed, torque fluctuation, an excavation ratio per unit load, an excavation ratio per unit revolution, etc., are collected (S1). Excavation data are analyzed (S2), and the properties of a baserock containing the presence or absence of cracks and a shuttered zone are evaluated (S3). The conditions of excavation at the time of reaming excavation are set on the basis of the properties of the baserock evaluated. Accordingly, reaming excavation after pilot excavation can be executed safely without having an adverse effect on excavating tools, etc.
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SOLUTION: When a pilot pit is excavated, various excavation data such as rotational speed, torque fluctuation, an excavation ratio per unit load, an excavation ratio per unit revolution, etc., are collected (S1). Excavation data are analyzed (S2), and the properties of a baserock containing the presence or absence of cracks and a shuttered zone are evaluated (S3). The conditions of excavation at the time of reaming excavation are set on the basis of the properties of the baserock evaluated. 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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title REAMING-EXCAVATION CONTROL EXECUTION METHOD
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