A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DEVICE AND METHOD FOR CRUSHING AND REMOVING EXISTING PILE AND FOOT PROTECTION
PROBLEM TO BE SOLVED: To provide a device and a method for crushing and removing an existing pile and a foot protection which facilitate crushing of a foot protection and which can reduce construction cost.SOLUTION: A pile 1 installed in a ground is removed by an auger method in which an auger screw 13 inside the device with an auger head 12 at the tip thereof and a casing 11 outside the device are rotated in the mutually opposite rotating directions to excavate the ground. The casing 11 has, on its inner peripheral surface, a plurality of lower stage internal cutters 22a and 22b and upper stage internal cutters 23a and 23b projecting toward a center axis of the casing so that the outer periphery of the pile 1 is cuttable when the casing is inserted into the ground around the pile 1. The casing 11 has, on its outer peripheral surface, a plurality of external cutters 24 projecting radially so that a foot protection 3 is cuttable when the casing is inserted into the foot protection 3 around the pile 1 while rotating and excavating.SELECTED DRAWING: Figure 1
【課題】根固めの粉砕が容易で、工事コストの削減を図ることができる既存杭および根固めの粉砕除去装置および既存杭および根固めの粉砕除去方法を提供する。【解決手段】内側のオーガスクリュー１３およびその先端のオーガヘッド１２と外側のケーシング１１とを互いに逆回転させて掘削を行うオーガ工法により、地盤に設置された杭１を除去する。ケーシング１１は、杭１の周囲の地盤に挿入されたとき、杭１の外周を切削可能に、内周面に中心軸方向に向かって突出する複数の下段内部カッター２２ａ，２２ｂおよび上段内部カッター２３ａ，２３ｂを有している。また、ケーシング１１は、回転掘削しながら杭１の周囲の根固め３に挿入されたとき根固め３を粉砕可能に、外周面に放射状に突出する複数の外部カッター２４を有している。【選択図】図１
DEVICE AND METHOD FOR CRUSHING AND REMOVING EXISTING PILE AND FOOT PROTECTION
PROBLEM TO BE SOLVED: To provide a device and a method for crushing and removing an existing pile and a foot protection which facilitate crushing of a foot protection and which can reduce construction cost.SOLUTION: A pile 1 installed in a ground is removed by an auger method in which an auger screw 13 inside the device with an auger head 12 at the tip thereof and a casing 11 outside the device are rotated in the mutually opposite rotating directions to excavate the ground. The casing 11 has, on its inner peripheral surface, a plurality of lower stage internal cutters 22a and 22b and upper stage internal cutters 23a and 23b projecting toward a center axis of the casing so that the outer periphery of the pile 1 is cuttable when the casing is inserted into the ground around the pile 1. The casing 11 has, on its outer peripheral surface, a plurality of external cutters 24 projecting radially so that a foot protection 3 is cuttable when the casing is inserted into the foot protection 3 around the pile 1 while rotating and excavating.SELECTED DRAWING: Figure 1
【課題】根固めの粉砕が容易で、工事コストの削減を図ることができる既存杭および根固めの粉砕除去装置および既存杭および根固めの粉砕除去方法を提供する。【解決手段】内側のオーガスクリュー１３およびその先端のオーガヘッド１２と外側のケーシング１１とを互いに逆回転させて掘削を行うオーガ工法により、地盤に設置された杭１を除去する。ケーシング１１は、杭１の周囲の地盤に挿入されたとき、杭１の外周を切削可能に、内周面に中心軸方向に向かって突出する複数の下段内部カッター２２ａ，２２ｂおよび上段内部カッター２３ａ，２３ｂを有している。また、ケーシング１１は、回転掘削しながら杭１の周囲の根固め３に挿入されたとき根固め３を粉砕可能に、外周面に放射状に突出する複数の外部カッター２４を有している。【選択図】図１
DEVICE AND METHOD FOR CRUSHING AND REMOVING EXISTING PILE AND FOOT PROTECTION
既存杭および根固めの粉砕除去装置および既存杭および根固めの粉砕除去方法
ENDO MAKOTO (author)
2016-12-28
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
DEVICE AND METHOD FOR CRUSHING AND REMOVING EXISTING PILE
| European Patent Office | 2017