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GROUND SAMPLE SAMPLING METHOD AND SAMPLING DEVICE
To provide a ground sample sampling method and sampling device that can collect frozen ground samples (frozen soil columns) without coring and with no use of a heavy machine, and can reduce a time and expenditure requiring establishment of the frozen soil column.SOLUTION: A ground sample sampling method is composed of: a heat source unit insertion step 5 of inserting a heatable heat source unit and coolable sample pull-out member into ground where ground samples are collected; a ground sample freezing step 6 of cooling the heat source unit inserted in the heat source unit insertion step 5, and causing the ground sample around the heat source unit to be frozen; a heating step 7 of heating the heat source unit after the ground sample freezing step 6, and causing one part of the frozen ground sample to be melted; a heat source unit pull-out step 8 of pulling out the heat source unit from the frozen ground sample; and a ground sample collection step 9 of pulling out the ground sample frozen after the heat source pull-out step from the ground by the sample pull-out member, and collecting the frozen ground sample without coring.SELECTED DRAWING: Figure 1
【課題】凍結した地盤試料（凍土柱）をコアリングレス、重機レスで採取できるとともに、凍土柱の造成に要する時間と費用を削減できる地盤試料のサンプリング方法及びサンプリング装置を提供する。【解決手段】地盤試料を採取する土中に加温及び冷却が可能な熱源ユニット及び試料引き抜き部材を挿入する熱源ユニット挿入工程５と、該熱源ユニット挿入工程５で挿入した熱源ユニットを冷却し、この熱源ユニットの周囲の地盤試料を凍結させる地盤試料凍結工程６と、地盤試料凍結工程６後に熱源ユニットを加温し、凍結した地盤試料の一部を融解させる加温工程７と、凍結した地盤試料から熱源ユニットを引き抜く熱源ユニット引き抜き工程８と、熱源ユニット引き抜き工程後に凍結した地盤試料を試料引き抜き部材により土中から引き抜き、凍結した地盤試料をコアリングせずに採取する地盤試料採取工程９とで構成される。【選択図】図１
GROUND SAMPLE SAMPLING METHOD AND SAMPLING DEVICE
To provide a ground sample sampling method and sampling device that can collect frozen ground samples (frozen soil columns) without coring and with no use of a heavy machine, and can reduce a time and expenditure requiring establishment of the frozen soil column.SOLUTION: A ground sample sampling method is composed of: a heat source unit insertion step 5 of inserting a heatable heat source unit and coolable sample pull-out member into ground where ground samples are collected; a ground sample freezing step 6 of cooling the heat source unit inserted in the heat source unit insertion step 5, and causing the ground sample around the heat source unit to be frozen; a heating step 7 of heating the heat source unit after the ground sample freezing step 6, and causing one part of the frozen ground sample to be melted; a heat source unit pull-out step 8 of pulling out the heat source unit from the frozen ground sample; and a ground sample collection step 9 of pulling out the ground sample frozen after the heat source pull-out step from the ground by the sample pull-out member, and collecting the frozen ground sample without coring.SELECTED DRAWING: Figure 1
【課題】凍結した地盤試料（凍土柱）をコアリングレス、重機レスで採取できるとともに、凍土柱の造成に要する時間と費用を削減できる地盤試料のサンプリング方法及びサンプリング装置を提供する。【解決手段】地盤試料を採取する土中に加温及び冷却が可能な熱源ユニット及び試料引き抜き部材を挿入する熱源ユニット挿入工程５と、該熱源ユニット挿入工程５で挿入した熱源ユニットを冷却し、この熱源ユニットの周囲の地盤試料を凍結させる地盤試料凍結工程６と、地盤試料凍結工程６後に熱源ユニットを加温し、凍結した地盤試料の一部を融解させる加温工程７と、凍結した地盤試料から熱源ユニットを引き抜く熱源ユニット引き抜き工程８と、熱源ユニット引き抜き工程後に凍結した地盤試料を試料引き抜き部材により土中から引き抜き、凍結した地盤試料をコアリングせずに採取する地盤試料採取工程９とで構成される。【選択図】図１
GROUND SAMPLE SAMPLING METHOD AND SAMPLING DEVICE
地盤試料のサンプリング方法及びサンプリング装置
SAKAI KAZUO (author) / YUGAWA HIRONORI (author) / TACHIKAWA HIDEO (author) / OKUZAWA TAIZO (author)
2020-01-23
Patent
Electronic Resource
Japanese
GROUND SAMPLE SAMPLING METHOD, AND GROUND SAMPLE SAMPLING DEVICE
| European Patent Office | 2021