METHOD FOR INVESTIGATING PERIPHERAL BASE ROCK OF CAVITY

PROBLEM TO BE SOLVED: To realize a method for investigating the peripheral bed rock of a cavity with high accuracy. SOLUTION: As a measuring hole of representative cross-section in a bed rock cavity 1 using elastic wave tomography, an oblique boring hole 4 is arranged to surround the bed rock cavity...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HASEGAWA MAKOTO, TADA HIROYUKI, MIYASHITA KUNIICHIROU
Format:	Patent
Sprache:	eng
Schlagworte:	DETECTING MASSES OR OBJECTS EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GEOPHYSICS GRAVITATIONAL MEASUREMENTS HYDRAULIC ENGINEERING MEASURING PHYSICS SOIL SHIFTING TESTING UNDERGROUND OR UNDERWATER STRUCTURES
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