A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a restoration method of the ground capable of surely realizing original-state restoration, besides being removable while taking into consideration a peripheral environment, on a columnar modified part by a soil cement column method.SOLUTION: A restoration method uses a forefront casing 11 having a cutting edge 12, an intermediate casing 21 connected to its rear part and a glove bucket 31 having a claw 32 for crushing a columnar modified part C by entering the inside of the casings 11 and 21. The periphery of the columnar modified part C is excavated by rotating the forefront casing 11, and the intermediate casing 21 is connected to the forefront casing 11, and is made to reach the predetermined depth. Next, the columnar modified part C is crushed by the glove bucket 31, and is discharged on the ground. Afterwards, a process constituted by tamping of a pull-up/backfilling material B of the input casings 11 and 21 of a backfilling material B is repeated little by little. As a result of it, the backfilling material B is uniformly pressed in, and later looseness is hardly caused. An occurrence factor of noise and vibration is also reduced.SELECTED DRAWING: Figure 1
【課題】ソイルセメントコラム工法による柱状改質部について、周辺環境に配慮しながら撤去できるほか、原状回復を確実に実現できる地盤の復元方法を提供する。【解決手段】切刃１２を備えた先頭ケーシング１１と、その後部に連結する中間ケーシング２１と、ケーシング１１、２１の内部に入り込み且つ柱状改質部Ｃを破砕する爪３２を備えたグラブバケット３１と、を用いる。そして先頭ケーシング１１を回転させて柱状改質部Ｃの周囲を掘削すると共に、先頭ケーシング１１に中間ケーシング２１を連結し、所定の深さに到達させる。次にグラブバケット３１で柱状改質部Ｃを破砕し、地上に排出する。その後、埋め戻し材Ｂの投入・ケーシング１１、２１の引き上げ・埋め戻し材Ｂの突き固め、で構成される工程を少しずつ繰り返す。その結果、埋め戻し材Ｂが均等に圧入され、後の緩みを生じにくい。また騒音や振動の発生要因も少ない。【選択図】図１
PROBLEM TO BE SOLVED: To provide a restoration method of the ground capable of surely realizing original-state restoration, besides being removable while taking into consideration a peripheral environment, on a columnar modified part by a soil cement column method.SOLUTION: A restoration method uses a forefront casing 11 having a cutting edge 12, an intermediate casing 21 connected to its rear part and a glove bucket 31 having a claw 32 for crushing a columnar modified part C by entering the inside of the casings 11 and 21. The periphery of the columnar modified part C is excavated by rotating the forefront casing 11, and the intermediate casing 21 is connected to the forefront casing 11, and is made to reach the predetermined depth. Next, the columnar modified part C is crushed by the glove bucket 31, and is discharged on the ground. Afterwards, a process constituted by tamping of a pull-up/backfilling material B of the input casings 11 and 21 of a backfilling material B is repeated little by little. As a result of it, the backfilling material B is uniformly pressed in, and later looseness is hardly caused. An occurrence factor of noise and vibration is also reduced.SELECTED DRAWING: Figure 1
【課題】ソイルセメントコラム工法による柱状改質部について、周辺環境に配慮しながら撤去できるほか、原状回復を確実に実現できる地盤の復元方法を提供する。【解決手段】切刃１２を備えた先頭ケーシング１１と、その後部に連結する中間ケーシング２１と、ケーシング１１、２１の内部に入り込み且つ柱状改質部Ｃを破砕する爪３２を備えたグラブバケット３１と、を用いる。そして先頭ケーシング１１を回転させて柱状改質部Ｃの周囲を掘削すると共に、先頭ケーシング１１に中間ケーシング２１を連結し、所定の深さに到達させる。次にグラブバケット３１で柱状改質部Ｃを破砕し、地上に排出する。その後、埋め戻し材Ｂの投入・ケーシング１１、２１の引き上げ・埋め戻し材Ｂの突き固め、で構成される工程を少しずつ繰り返す。その結果、埋め戻し材Ｂが均等に圧入され、後の緩みを生じにくい。また騒音や振動の発生要因も少ない。【選択図】図１
RESTORATION METHOD OF GROUND
地盤の復元方法
ORITO SEIJI (author)
2017-04-27
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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