A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TUNNEL CONSTRUCTION METHOD USING GROUTING TECHNOLOGY
The present invention relates to a tunnel construction method using a grouting technology, wherein when the length of the first excavation section is A1, the first excavation is performed over a shorter length by ΔB1 than A1, that is, only up to a section corresponding to the length of A1-ΔB1. Subsequently, the second excavation is performed seamlessly over the length of the second excavation section, A2. The excavation speed or excavation time of an initial section ΔB2 is controlled such that the compressive strength of a grout material injected into the section A2-ΔB2 is 5kgf/cm2 or higher during the excavation of the section ΔB2. A similar excavation method is also applied to the third to nth unit excavation sections. Accordingly, the waiting time for curing of the grout material is reduced, and thus the tunnel excavation time can be shortened.
La présente invention concerne un procédé de construction de tunnel utilisant une technologie de cimentation où, lorsque la longueur de la première section d'excavation est A1, la première excavation est effectuée sur une longueur inférieure de ΔB1 par rapport à A1, c'est-à-dire uniquement jusqu'à une section correspondant à la longueur A1-ΔB1. Ensuite, la seconde excavation est effectuée en continu sur la longueur de la seconde section d'excavation, A2. La vitesse d'excavation ou le temps d'excavation d'une section initiale ΔB2 est commandé(e) de telle sorte que la force de compression d'un matériau de cimentation injecté dans la section A2-ΔB2 est d'au moins 5 kgf/cm2 pendant l'excavation de la section ΔB2. Un procédé d'excavation similaire est également appliqué aux troisième à nième sections d'excavation unitaires. En conséquence, le temps d'attente pour le durcissement du matériau de cimentation est réduit, et ainsi le temps d'excavation de tunnel peut être raccourci.
본 발명은, 그라우트 공법을 이용한 터널 시공 방법으로서, 1차 굴착 구간의 길이가 A1일 때, A1-△B1의 길이에 해당하는 구간까지 1차 굴착을 A1보다 △B1 만큼 짧게 진행한다. 이어서, 2차 굴착 구간의 길이 A2에 대한 2차 굴착을 무순단으로 진행한다. 초기 구간 △B2의 굴착 속도 또는 굴착 시간은 △B2의 굴착이 이루어지는 동안 A2-△B2에 주입된 그라우트재의 압축 강도가 5kgf/cm2 이상으로 실현되도록 조절된다. 유사한 굴착 공법이 3차 내지 n차 단위 굴착 구간에도 적용된다. 그라우트재의 양생 대기 시간이 절약되므로 터널 굴착 시간이 단축된다.
TUNNEL CONSTRUCTION METHOD USING GROUTING TECHNOLOGY
The present invention relates to a tunnel construction method using a grouting technology, wherein when the length of the first excavation section is A1, the first excavation is performed over a shorter length by ΔB1 than A1, that is, only up to a section corresponding to the length of A1-ΔB1. Subsequently, the second excavation is performed seamlessly over the length of the second excavation section, A2. The excavation speed or excavation time of an initial section ΔB2 is controlled such that the compressive strength of a grout material injected into the section A2-ΔB2 is 5kgf/cm2 or higher during the excavation of the section ΔB2. A similar excavation method is also applied to the third to nth unit excavation sections. Accordingly, the waiting time for curing of the grout material is reduced, and thus the tunnel excavation time can be shortened.
La présente invention concerne un procédé de construction de tunnel utilisant une technologie de cimentation où, lorsque la longueur de la première section d'excavation est A1, la première excavation est effectuée sur une longueur inférieure de ΔB1 par rapport à A1, c'est-à-dire uniquement jusqu'à une section correspondant à la longueur A1-ΔB1. Ensuite, la seconde excavation est effectuée en continu sur la longueur de la seconde section d'excavation, A2. La vitesse d'excavation ou le temps d'excavation d'une section initiale ΔB2 est commandé(e) de telle sorte que la force de compression d'un matériau de cimentation injecté dans la section A2-ΔB2 est d'au moins 5 kgf/cm2 pendant l'excavation de la section ΔB2. Un procédé d'excavation similaire est également appliqué aux troisième à nième sections d'excavation unitaires. En conséquence, le temps d'attente pour le durcissement du matériau de cimentation est réduit, et ainsi le temps d'excavation de tunnel peut être raccourci.
본 발명은, 그라우트 공법을 이용한 터널 시공 방법으로서, 1차 굴착 구간의 길이가 A1일 때, A1-△B1의 길이에 해당하는 구간까지 1차 굴착을 A1보다 △B1 만큼 짧게 진행한다. 이어서, 2차 굴착 구간의 길이 A2에 대한 2차 굴착을 무순단으로 진행한다. 초기 구간 △B2의 굴착 속도 또는 굴착 시간은 △B2의 굴착이 이루어지는 동안 A2-△B2에 주입된 그라우트재의 압축 강도가 5kgf/cm2 이상으로 실현되도록 조절된다. 유사한 굴착 공법이 3차 내지 n차 단위 굴착 구간에도 적용된다. 그라우트재의 양생 대기 시간이 절약되므로 터널 굴착 시간이 단축된다.
TUNNEL CONSTRUCTION METHOD USING GROUTING TECHNOLOGY
PROCÉDÉ DE CONSTRUCTION DE TUNNEL UTILISANT UNE TECHNOLOGIE DE CIMENTATION
그라우트 공법을 이용한 터널 시공 방법
SONG YOUNG-SU (author)
2019-06-27
Patent
Electronic Resource
Korean
Method for tunnel construction using grouting technology
| European Patent Office | 2019
Method for tunnel construction using grouting technology
| European Patent Office | 2019