Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GROUND STRENGTH DETERMINATION METHOD, AND TUNNEL EXCAVATION METHOD
PROBLEM TO BE SOLVED: To provide a ground strength determination method that enables quantitative assessment of a declined amount of the ground strength after excavation, along with a tunnel excavation method that utilizes the determination method.SOLUTION: In a ground strength determination method, a ground 5 scheduled for excavation is bored toward an excavation direction for sampling a boring core of the ground scheduled for excavation. A strength test is performed on the sampled boring core after elapse of a prescribed amount of time from the sampling, and the ground strength obtained from the strength test result is assumed as the ground strength of the ground 5 scheduled for excavation after elapse of the prescribed amount of time from excavation. Based on the assumed ground strength, the ground strength after elapse of the prescribed amount of time from the excavation may be known.SELECTED DRAWING: Figure 1
【課題】掘削後の地盤強度の低下量を定量的に評価することができる地盤強度の判定方法、及び、当該判定方法を利用したトンネルの掘削方法を提供する。【解決手段】地盤強度の判定方法として、掘削予定地盤５を掘削方向に向ってボーリングして掘削予定地盤のボーリングコアを採取し、採取したボーリングコアに対して、採取から所定時間が経過した後に強度試験を実施し、強度試験の結果から得られる地盤強度を、掘削予定地盤５の掘削後から所定時間が経過した後の地盤強度とみなす。ここから、掘削から所定時間が経過した後の地盤強度を知ることができる。【選択図】図１
GROUND STRENGTH DETERMINATION METHOD, AND TUNNEL EXCAVATION METHOD
PROBLEM TO BE SOLVED: To provide a ground strength determination method that enables quantitative assessment of a declined amount of the ground strength after excavation, along with a tunnel excavation method that utilizes the determination method.SOLUTION: In a ground strength determination method, a ground 5 scheduled for excavation is bored toward an excavation direction for sampling a boring core of the ground scheduled for excavation. A strength test is performed on the sampled boring core after elapse of a prescribed amount of time from the sampling, and the ground strength obtained from the strength test result is assumed as the ground strength of the ground 5 scheduled for excavation after elapse of the prescribed amount of time from excavation. Based on the assumed ground strength, the ground strength after elapse of the prescribed amount of time from the excavation may be known.SELECTED DRAWING: Figure 1
【課題】掘削後の地盤強度の低下量を定量的に評価することができる地盤強度の判定方法、及び、当該判定方法を利用したトンネルの掘削方法を提供する。【解決手段】地盤強度の判定方法として、掘削予定地盤５を掘削方向に向ってボーリングして掘削予定地盤のボーリングコアを採取し、採取したボーリングコアに対して、採取から所定時間が経過した後に強度試験を実施し、強度試験の結果から得られる地盤強度を、掘削予定地盤５の掘削後から所定時間が経過した後の地盤強度とみなす。ここから、掘削から所定時間が経過した後の地盤強度を知ることができる。【選択図】図１
GROUND STRENGTH DETERMINATION METHOD, AND TUNNEL EXCAVATION METHOD
地盤強度の判定方法、及び、トンネルの掘削方法
YOKOTA YASUHIRO (Autor:in) / NARITA NOZOMI (Autor:in) / YAMAMOTO TAKUJI (Autor:in) / DATE KENSUKE (Autor:in)
19.01.2017
Patent
Elektronische Ressource
Japanisch
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