SOIL SAMPLING DEVICE

PROBLEM TO BE SOLVED: To solve the problem in which it is very difficult to use a conventional soil sampling device for soil sampling from a small-diameter hole bored by testing equipment such as a Swedish type sounding testing equipment in a sandy soil layer containing much ground water and the wal...

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1. Verfasser:	HASHIMOTO MITSUNORI
Format:	Patent
Sprache:	eng
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS SOIL SHIFTING TESTING UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To solve the problem in which it is very difficult to use a conventional soil sampling device for soil sampling from a small-diameter hole bored by testing equipment such as a Swedish type sounding testing equipment in a sandy soil layer containing much ground water and the wall surface of the hole is collapsible.SOLUTION: A sampling unit comprises a substantially pipy storage part for storing a soil sample and a variable spatula connected to the front side of the storage part. A feeding steel wire for feeding and recovering the sampling unit to and from a position of a predetermined hole is a hard-drawn wire made of austenitic stainless steel of 800 N or more than 800 N with a processing rate of 70%. An operation string, which is integrated with a guide attached to the hard-drawn wire, is operated on the ground, so that the variable spatula collects sandy soil samples containing much ground water.