LARGE SCALE UNDERGROUND EXCAVATING METHOD EMPLOYING TREANCH CUT PROCESS
PURPOSE:To improve safety of a landslide protection wall, by a method wherein, after both trench walls of a primary excavation part excavated in a trench shape are supported by a strut, the interior thereof is excavated in an open cut way in a manner that a part adjoining to the primary excavation p...
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creator | OKABE NOBUYOSHI TAWARA SHINROKU MIURA MASAO |
description | PURPOSE:To improve safety of a landslide protection wall, by a method wherein, after both trench walls of a primary excavation part excavated in a trench shape are supported by a strut, the interior thereof is excavated in an open cut way in a manner that a part adjoining to the primary excavation part is left as it is. CONSTITUTION:In large scale underground excavation, such as gymnasia, a primary U-shaped excavation part 1 is excavated after landslide protection walls are built inside and outside, and sheet piles 7 and struts 2 prevent against damage due to an earth pressure produced by a bedrock 4. A secondary excavation part 5 for the interior is excavated in an open cut way, and a part, adjoining to the primary excavation part, is caused to remain as an internal landslide protection wall part 6. Further, after foundation concrete 9 is placed in the primary excavation part 1, soil at the internal landslide protection wall part 6 is discharged to complete foundation excavation. This causes the internal landslide protection wall part 6 to counter with the pressure of the bedrock, resulting in the possibility to improve safety of a landslide protection wall. |
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CONSTITUTION:In large scale underground excavation, such as gymnasia, a primary U-shaped excavation part 1 is excavated after landslide protection walls are built inside and outside, and sheet piles 7 and struts 2 prevent against damage due to an earth pressure produced by a bedrock 4. A secondary excavation part 5 for the interior is excavated in an open cut way, and a part, adjoining to the primary excavation part, is caused to remain as an internal landslide protection wall part 6. Further, after foundation concrete 9 is placed in the primary excavation part 1, soil at the internal landslide protection wall part 6 is discharged to complete foundation excavation. This causes the internal landslide protection wall part 6 to counter with the pressure of the bedrock, resulting in the possibility to improve safety of a landslide protection wall.</description><language>eng</language><subject>EARTH DRILLING ; EMBANKMENTS ; EXCAVATIONS ; FIXED CONSTRUCTIONS ; FOUNDATIONS ; GALLERIES ; HYDRAULIC ENGINEERING ; LARGE UNDERGROUND CHAMBERS ; MINING ; SHAFTS ; SOIL SHIFTING ; TUNNELS ; UNDERGROUND OR UNDERWATER STRUCTURES</subject><creationdate>1986</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=19860417&DB=EPODOC&CC=JP&NR=S6175126A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860417&DB=EPODOC&CC=JP&NR=S6175126A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKABE NOBUYOSHI</creatorcontrib><creatorcontrib>TAWARA SHINROKU</creatorcontrib><creatorcontrib>MIURA MASAO</creatorcontrib><title>LARGE SCALE UNDERGROUND EXCAVATING METHOD EMPLOYING TREANCH CUT PROCESS</title><description>PURPOSE:To improve safety of a landslide protection wall, by a method wherein, after both trench walls of a primary excavation part excavated in a trench shape are supported by a strut, the interior thereof is excavated in an open cut way in a manner that a part adjoining to the primary excavation part is left as it is. CONSTITUTION:In large scale underground excavation, such as gymnasia, a primary U-shaped excavation part 1 is excavated after landslide protection walls are built inside and outside, and sheet piles 7 and struts 2 prevent against damage due to an earth pressure produced by a bedrock 4. A secondary excavation part 5 for the interior is excavated in an open cut way, and a part, adjoining to the primary excavation part, is caused to remain as an internal landslide protection wall part 6. Further, after foundation concrete 9 is placed in the primary excavation part 1, soil at the internal landslide protection wall part 6 is discharged to complete foundation excavation. This causes the internal landslide protection wall part 6 to counter with the pressure of the bedrock, resulting in the possibility to improve safety of a landslide protection wall.</description><subject>EARTH DRILLING</subject><subject>EMBANKMENTS</subject><subject>EXCAVATIONS</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FOUNDATIONS</subject><subject>GALLERIES</subject><subject>HYDRAULIC ENGINEERING</subject><subject>LARGE UNDERGROUND CHAMBERS</subject><subject>MINING</subject><subject>SHAFTS</subject><subject>SOIL SHIFTING</subject><subject>TUNNELS</subject><subject>UNDERGROUND OR UNDERWATER STRUCTURES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD3cQxyd1UIdnb0cVUI9XNxDXIP8gfSCq4Rzo5hjiGefu4Kvq4hHv5AEd8AH_9IkEBIkKujn7OHgnNoiEJAkL-za3AwDwNrWmJOcSovlOZmUHBzDXH20E0tyI9PLS5ITE7NSy2J9woINjM0NzU0MnM0JkIJAJ7MLKs</recordid><startdate>19860417</startdate><enddate>19860417</enddate><creator>OKABE NOBUYOSHI</creator><creator>TAWARA SHINROKU</creator><creator>MIURA MASAO</creator><scope>EVB</scope></search><sort><creationdate>19860417</creationdate><title>LARGE SCALE UNDERGROUND EXCAVATING METHOD EMPLOYING TREANCH CUT PROCESS</title><author>OKABE NOBUYOSHI ; TAWARA SHINROKU ; MIURA MASAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS6175126A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1986</creationdate><topic>EARTH DRILLING</topic><topic>EMBANKMENTS</topic><topic>EXCAVATIONS</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FOUNDATIONS</topic><topic>GALLERIES</topic><topic>HYDRAULIC ENGINEERING</topic><topic>LARGE UNDERGROUND CHAMBERS</topic><topic>MINING</topic><topic>SHAFTS</topic><topic>SOIL SHIFTING</topic><topic>TUNNELS</topic><topic>UNDERGROUND OR UNDERWATER STRUCTURES</topic><toplevel>online_resources</toplevel><creatorcontrib>OKABE NOBUYOSHI</creatorcontrib><creatorcontrib>TAWARA SHINROKU</creatorcontrib><creatorcontrib>MIURA MASAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OKABE NOBUYOSHI</au><au>TAWARA SHINROKU</au><au>MIURA MASAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LARGE SCALE UNDERGROUND EXCAVATING METHOD EMPLOYING TREANCH CUT PROCESS</title><date>1986-04-17</date><risdate>1986</risdate><abstract>PURPOSE:To improve safety of a landslide protection wall, by a method wherein, after both trench walls of a primary excavation part excavated in a trench shape are supported by a strut, the interior thereof is excavated in an open cut way in a manner that a part adjoining to the primary excavation part is left as it is. CONSTITUTION:In large scale underground excavation, such as gymnasia, a primary U-shaped excavation part 1 is excavated after landslide protection walls are built inside and outside, and sheet piles 7 and struts 2 prevent against damage due to an earth pressure produced by a bedrock 4. A secondary excavation part 5 for the interior is excavated in an open cut way, and a part, adjoining to the primary excavation part, is caused to remain as an internal landslide protection wall part 6. Further, after foundation concrete 9 is placed in the primary excavation part 1, soil at the internal landslide protection wall part 6 is discharged to complete foundation excavation. This causes the internal landslide protection wall part 6 to counter with the pressure of the bedrock, resulting in the possibility to improve safety of a landslide protection wall.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GALLERIES HYDRAULIC ENGINEERING LARGE UNDERGROUND CHAMBERS MINING SHAFTS SOIL SHIFTING TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES |
title | LARGE SCALE UNDERGROUND EXCAVATING METHOD EMPLOYING TREANCH CUT PROCESS |
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