A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CROSS-SECTION TUNNEL CONSTRUCTION METHOD USING ROCK MASS QUALITY RATING
According to the present invention, a method for constructing a tunnel with a large cross section using a rock quality rating comprises: (a) a step of determining a rock quality rating of a bedrock where a tunnel with the large cross section is to be constructed; (b) a step of setting an excavation area of a prior excavation unit in accordance with a determined rock quality rating; (c) a step of excavating the prior excavation unit at a preset flatness or less to correspond to a preset excavation area; (d) a step of excavating a post excavation unit with a remaining region except for a prior excavation unit, using a central free surface formed by excavating the prior excavation unit; and (e) a step of repeating step (a) to step (d). The purpose of the present invention is to provide the method for constructing the tunnel capable of reducing a construction period and remarkably reducing construction costs.
본 발명에 따른 암질등급을 이용한 대단면 터널 시공방법은, 대단면 터널이 시공될 암반의 암질등급을 판정하는 (a)단계, 상기 판정된 암질등급에 따라 선행굴착부의 굴착 면적을 설정하는 (b)단계, 상기 설정된 굴착 면적에 대응되도록 선행굴착부를 기 설정된 편평도 이하로 굴착하는 (c)단계, 상기 선행굴착부의 굴착에 의해 형성된 중앙의 자유면을 이용하여 상기 선행굴착부를 제외한 나머지 영역인 후행굴착부를 굴착하는 (d)단계 및 상기 (a)단계 내지 상기 (d)단계를 반복하는 (e)단계를 포함한다.
CROSS-SECTION TUNNEL CONSTRUCTION METHOD USING ROCK MASS QUALITY RATING
According to the present invention, a method for constructing a tunnel with a large cross section using a rock quality rating comprises: (a) a step of determining a rock quality rating of a bedrock where a tunnel with the large cross section is to be constructed; (b) a step of setting an excavation area of a prior excavation unit in accordance with a determined rock quality rating; (c) a step of excavating the prior excavation unit at a preset flatness or less to correspond to a preset excavation area; (d) a step of excavating a post excavation unit with a remaining region except for a prior excavation unit, using a central free surface formed by excavating the prior excavation unit; and (e) a step of repeating step (a) to step (d). The purpose of the present invention is to provide the method for constructing the tunnel capable of reducing a construction period and remarkably reducing construction costs.
본 발명에 따른 암질등급을 이용한 대단면 터널 시공방법은, 대단면 터널이 시공될 암반의 암질등급을 판정하는 (a)단계, 상기 판정된 암질등급에 따라 선행굴착부의 굴착 면적을 설정하는 (b)단계, 상기 설정된 굴착 면적에 대응되도록 선행굴착부를 기 설정된 편평도 이하로 굴착하는 (c)단계, 상기 선행굴착부의 굴착에 의해 형성된 중앙의 자유면을 이용하여 상기 선행굴착부를 제외한 나머지 영역인 후행굴착부를 굴착하는 (d)단계 및 상기 (a)단계 내지 상기 (d)단계를 반복하는 (e)단계를 포함한다.
CROSS-SECTION TUNNEL CONSTRUCTION METHOD USING ROCK MASS QUALITY RATING
암질등급을 이용한 대단면 터널 시공방법
PARK JAE HYUN (author)
2016-05-02
Patent
Electronic Resource
Korean
Cross-Section Tunnel Construction Method Using Rock Mass Quality Rating
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