A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF UNDERGROUND TRENCH, AND EXCAVATION SPACER
PROBLEM TO BE SOLVED: To provide a construction method of an underground trench and an excavation spacer that reduce an excavated soil amount, reduce risks of fall-off and others, and reduce deformation risks of surrounding ground at a time of trench excavation, by minimizing a trench width.SOLUTION: An excavation spacer 1 includes a pair of plate-form materials 3, an injection pipe 5 provided between the pair of plate-form materials 3, and a support 7 provided between the pair of plate-form materials 3 for maintaining an interval between the plate-form materials 3. The excavation spacer is embedded and installed in a ground while fluidizing sediment of the ground by injecting high-pressure water jet from the injection pipe 5. The excavation spacer 1 installed later is connected with the excavation spacer 1 installed previously using a guide joint. After embedding and installing the excavation spacer 1 in the ground, sediment at a portion between the pair of plate-form materials 3 is removed using the injection pipe 5 for forming a trench part, and muddy water that is a fluid filler is filled in the trench part.SELECTED DRAWING: Figure 1
【課題】溝幅を必要最小限とすることで、掘削土量を削減し、落下等の危険を低減し、溝掘削に伴う周辺地盤の変状リスクを低減できる地中溝の構築方法および掘削スペーサを提供する。【解決手段】一対の板状材３と、一対の板状材３の間に設けられた噴射管５と、一対の板状材３同士の間に設けられて板状材３同士の間隔を保持する支保工７とを有する掘削スペーサ１を、噴射管５からウォータージェットを高圧噴射することにより地盤の土砂を流動化させつつ、地盤に沈設する。後行して設置する掘削スペーサ１と先行して設置された掘削スペーサ１とは、ガイド継手を用いて連結される。地盤に掘削スペーサ１を沈設した後、噴射管５を用いて一対の板状材３に挟まれた部分の土砂を切削して溝部を形成するとともに、溝部に流動性充填材である泥水を充填する。【選択図】図１
CONSTRUCTION METHOD OF UNDERGROUND TRENCH, AND EXCAVATION SPACER
PROBLEM TO BE SOLVED: To provide a construction method of an underground trench and an excavation spacer that reduce an excavated soil amount, reduce risks of fall-off and others, and reduce deformation risks of surrounding ground at a time of trench excavation, by minimizing a trench width.SOLUTION: An excavation spacer 1 includes a pair of plate-form materials 3, an injection pipe 5 provided between the pair of plate-form materials 3, and a support 7 provided between the pair of plate-form materials 3 for maintaining an interval between the plate-form materials 3. The excavation spacer is embedded and installed in a ground while fluidizing sediment of the ground by injecting high-pressure water jet from the injection pipe 5. The excavation spacer 1 installed later is connected with the excavation spacer 1 installed previously using a guide joint. After embedding and installing the excavation spacer 1 in the ground, sediment at a portion between the pair of plate-form materials 3 is removed using the injection pipe 5 for forming a trench part, and muddy water that is a fluid filler is filled in the trench part.SELECTED DRAWING: Figure 1
【課題】溝幅を必要最小限とすることで、掘削土量を削減し、落下等の危険を低減し、溝掘削に伴う周辺地盤の変状リスクを低減できる地中溝の構築方法および掘削スペーサを提供する。【解決手段】一対の板状材３と、一対の板状材３の間に設けられた噴射管５と、一対の板状材３同士の間に設けられて板状材３同士の間隔を保持する支保工７とを有する掘削スペーサ１を、噴射管５からウォータージェットを高圧噴射することにより地盤の土砂を流動化させつつ、地盤に沈設する。後行して設置する掘削スペーサ１と先行して設置された掘削スペーサ１とは、ガイド継手を用いて連結される。地盤に掘削スペーサ１を沈設した後、噴射管５を用いて一対の板状材３に挟まれた部分の土砂を切削して溝部を形成するとともに、溝部に流動性充填材である泥水を充填する。【選択図】図１
CONSTRUCTION METHOD OF UNDERGROUND TRENCH, AND EXCAVATION SPACER
地中溝の構築方法および掘削スペーサ
OKAMOTO MICHITAKA (author) / SUEYOSHI TAKANOBU (author) / ONO SUNAO (author) / ARIMA TAKESHI (author) / NISHIO AKIRA (author) / NAGATOMI MASASHI (author) / OBARA TAKASHI (author) / SATO KAZUNARI (author)
2017-05-25
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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