A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXCAVATION HEAD OF EXCAVATION ROD FOR CONSTRUCTING HYDRAULIC SOLIDIFICATION MATERIAL LIQUID DISPLACEMENT COLUMN
PROBLEM TO BE SOLVED: To improve the capacity to excavate hard ground, and enable achievement of extension of life of a conical head by effectively suppressing abrasion of an outer peripheral top face of a spiral blade.SOLUTION: A hydraulic solidification material liquid discharge opening 24 communicating with a hydraulic solidification material liquid channel, and a spiral blade 25 for pushing excavation sediment upward during normal rotation of an excavation rod 21 are provided on a peripheral surface of a conical head 22. A plurality of cutting claws 28 are protrusively provided at predetermined intervals on the spiral blade 25.SELECTED DRAWING: Figure 1
【課題】 硬質地盤に対する掘削能力を向上するとともに、スパイラル翼外周頂面の摩耗を効果的に抑制し、円錐ヘッドの長寿命化を実現可能にする。【解決手段】 水硬性固化材液の流路に通じる水硬性固化材液の吐出口２４と、掘削ロッド２１の正転時に掘削土砂を上方に押し上げるスパイラル翼２５とを円錐ヘッド２２の周面に設け、スパイラル翼２５には所定間隔をおいて複数個の切削爪２８を突設した構成である。【選択図】 図１
EXCAVATION HEAD OF EXCAVATION ROD FOR CONSTRUCTING HYDRAULIC SOLIDIFICATION MATERIAL LIQUID DISPLACEMENT COLUMN
PROBLEM TO BE SOLVED: To improve the capacity to excavate hard ground, and enable achievement of extension of life of a conical head by effectively suppressing abrasion of an outer peripheral top face of a spiral blade.SOLUTION: A hydraulic solidification material liquid discharge opening 24 communicating with a hydraulic solidification material liquid channel, and a spiral blade 25 for pushing excavation sediment upward during normal rotation of an excavation rod 21 are provided on a peripheral surface of a conical head 22. A plurality of cutting claws 28 are protrusively provided at predetermined intervals on the spiral blade 25.SELECTED DRAWING: Figure 1
【課題】 硬質地盤に対する掘削能力を向上するとともに、スパイラル翼外周頂面の摩耗を効果的に抑制し、円錐ヘッドの長寿命化を実現可能にする。【解決手段】 水硬性固化材液の流路に通じる水硬性固化材液の吐出口２４と、掘削ロッド２１の正転時に掘削土砂を上方に押し上げるスパイラル翼２５とを円錐ヘッド２２の周面に設け、スパイラル翼２５には所定間隔をおいて複数個の切削爪２８を突設した構成である。【選択図】 図１
EXCAVATION HEAD OF EXCAVATION ROD FOR CONSTRUCTING HYDRAULIC SOLIDIFICATION MATERIAL LIQUID DISPLACEMENT COLUMN
水硬性固化材液置換コラム築造用掘削ロッドの掘削ヘッド
MURAYAMA ATSUSHI (author) / FUJIHASHI TOSHINORI (author) / TANAKA KEIZO (author) / KANEKO TAKAYUKI (author) / YOSHIDA SHIGERU (author) / YAMATO SHINICHI (author) / YANAGIDA YUJI (author) / YOSHIDA SHIGEKI (author)
2017-08-03
Patent
Electronic Resource
Japanese
EXCAVATION ROD, EXCAVATION HEAD AND PILE-HOLE EXCAVATION DEVICE
| European Patent Office | 2019