CONSTRUCTION METHOD FOR ESTABLISHING UNDERGROUND COLUMN AND DEVICE THEREFOR

PROBLEM TO BE SOLVED: To excavate and stir the ground while avoiding the damage by cobble stones by extending a flexible wing provided on an injection rod sideways in a prescribed depth, and retreating it while a ground hardener is injected from a side nozzle. SOLUTION: An injection rod has an excav...

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1. Verfasser:	SAWAMURA TOYOJI
Format:	Patent
Sprache:	eng
Schlagworte:	DREDGING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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creator	SAWAMURA TOYOJI
description	PROBLEM TO BE SOLVED: To excavate and stir the ground while avoiding the damage by cobble stones by extending a flexible wing provided on an injection rod sideways in a prescribed depth, and retreating it while a ground hardener is injected from a side nozzle. SOLUTION: An injection rod has an excavating chip and an excavating directional injection nozzle 6 on the top part, and a side injection nozzle 6' on the upper circumference. A wing W formed of a link of flexible material having a side bit 12 is provided in a position for stirring the side jet flow track so that it is protruded sideways when a cylinder rod 17 is advanced by the oil pressure of a hydraulic cylinder 17' and contracted along the injection rod when it is retreated. The injection rod is rotated and advanced toward a target ground A while a lubricating material is injected through the injection nozzle 6 in the state where the wing W is contracted. When it reaches a prescribed depth, the wing W is extended, a ground hardener is injected through the injection nozzle 6' while retreating, the wing W is also rotated to excavate and stir the peripheral soil, and the ground hardener is mixed thereto.
format	Patent
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SOLUTION: An injection rod has an excavating chip and an excavating directional injection nozzle 6 on the top part, and a side injection nozzle 6' on the upper circumference. A wing W formed of a link of flexible material having a side bit 12 is provided in a position for stirring the side jet flow track so that it is protruded sideways when a cylinder rod 17 is advanced by the oil pressure of a hydraulic cylinder 17' and contracted along the injection rod when it is retreated. The injection rod is rotated and advanced toward a target ground A while a lubricating material is injected through the injection nozzle 6 in the state where the wing W is contracted. When it reaches a prescribed depth, the wing W is extended, a ground hardener is injected through the injection nozzle 6' while retreating, the wing W is also rotated to excavate and stir the peripheral soil, and the ground hardener is mixed thereto.</description><edition>6</edition><language>eng</language><subject>DREDGING ; EMBANKMENTS ; EXCAVATIONS ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; HYDRAULIC ENGINEERING ; SOIL SHIFTING ; UNDERGROUND OR UNDERWATER STRUCTURES</subject><creationdate>1997</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970902&DB=EPODOC&CC=JP&NR=H09228358A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19970902&DB=EPODOC&CC=JP&NR=H09228358A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAWAMURA TOYOJI</creatorcontrib><title>CONSTRUCTION METHOD FOR ESTABLISHING UNDERGROUND COLUMN AND DEVICE THEREFOR</title><description>PROBLEM TO BE SOLVED: To excavate and stir the ground while avoiding the damage by cobble stones by extending a flexible wing provided on an injection rod sideways in a prescribed depth, and retreating it while a ground hardener is injected from a side nozzle. SOLUTION: An injection rod has an excavating chip and an excavating directional injection nozzle 6 on the top part, and a side injection nozzle 6' on the upper circumference. A wing W formed of a link of flexible material having a side bit 12 is provided in a position for stirring the side jet flow track so that it is protruded sideways when a cylinder rod 17 is advanced by the oil pressure of a hydraulic cylinder 17' and contracted along the injection rod when it is retreated. The injection rod is rotated and advanced toward a target ground A while a lubricating material is injected through the injection nozzle 6 in the state where the wing W is contracted. When it reaches a prescribed depth, the wing W is extended, a ground hardener is injected through the injection nozzle 6' while retreating, the wing W is also rotated to excavate and stir the peripheral soil, and the ground hardener is mixed thereto.</description><subject>DREDGING</subject><subject>EMBANKMENTS</subject><subject>EXCAVATIONS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FOUNDATIONS</subject><subject>HYDRAULIC ENGINEERING</subject><subject>SOIL SHIFTING</subject><subject>UNDERGROUND OR UNDERWATER STRUCTURES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPB29vcLDgkKdQ7x9PdT8HUN8fB3UXDzD1JwDQ5xdPLxDPbw9HNXCPVzcQ1yD_IH0grO_j6hvn4KjkCmi2uYp7OrQoiHa5ArUA8PA2taYk5xKi-U5mZQdHMNcfbQTS3Ij08tLkhMTs1LLYn3CvAwsDQysjA2tXA0JkYNAMjXLks</recordid><startdate>19970902</startdate><enddate>19970902</enddate><creator>SAWAMURA TOYOJI</creator><scope>EVB</scope></search><sort><creationdate>19970902</creationdate><title>CONSTRUCTION METHOD FOR ESTABLISHING UNDERGROUND COLUMN AND DEVICE THEREFOR</title><author>SAWAMURA TOYOJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH09228358A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</creationdate><topic>DREDGING</topic><topic>EMBANKMENTS</topic><topic>EXCAVATIONS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FOUNDATIONS</topic><topic>HYDRAULIC ENGINEERING</topic><topic>SOIL SHIFTING</topic><topic>UNDERGROUND OR UNDERWATER STRUCTURES</topic><toplevel>online_resources</toplevel><creatorcontrib>SAWAMURA TOYOJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAWAMURA TOYOJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CONSTRUCTION METHOD FOR ESTABLISHING UNDERGROUND COLUMN AND DEVICE THEREFOR</title><date>1997-09-02</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To excavate and stir the ground while avoiding the damage by cobble stones by extending a flexible wing provided on an injection rod sideways in a prescribed depth, and retreating it while a ground hardener is injected from a side nozzle. SOLUTION: An injection rod has an excavating chip and an excavating directional injection nozzle 6 on the top part, and a side injection nozzle 6' on the upper circumference. A wing W formed of a link of flexible material having a side bit 12 is provided in a position for stirring the side jet flow track so that it is protruded sideways when a cylinder rod 17 is advanced by the oil pressure of a hydraulic cylinder 17' and contracted along the injection rod when it is retreated. The injection rod is rotated and advanced toward a target ground A while a lubricating material is injected through the injection nozzle 6 in the state where the wing W is contracted. When it reaches a prescribed depth, the wing W is extended, a ground hardener is injected through the injection nozzle 6' while retreating, the wing W is also rotated to excavate and stir the peripheral soil, and the ground hardener is mixed thereto.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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subjects	DREDGING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
title	CONSTRUCTION METHOD FOR ESTABLISHING UNDERGROUND COLUMN AND DEVICE THEREFOR
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