발파진동 제어에 의한 특수구간 터널굴착에 관한 연구

• 영문명: A study on tunnel excavation by controlled blast vibration at particular environment conditions
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 최형빈(Choi Hyung Bin) 임한욱(Lim Han Uk)
• 간행물 정보: 『산업기술연구』vol.20, 1~11쪽, 전체 11쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2000.09.30

영문 초록

It was difficult to apply conventional excavation methods in some sections from Seoul to Pusan high speed rail road construction of 1 lot 2, due to highway concrete road, gas pipe, water pipe and nearby factories with automatic control system machine. To excavate safely and efficiently in these sections new blast patterns were employed within allowable blast vibration level, by test blast and controlled vibration by sequential blast. Behaviors of the rock mass including convergence and displacement around tunnel were measured with construction works and the crack width in concrete wall also monitored for controlling allowable limits. The results can be summarized as follow : 1. The allowable blast vibration level in structure site is less 1.0cm/sec for highway concrete, 0.5 cm/sec for gas pipe, water pipe and building housing and 0.3 cm/sec for automatic control system machine. 2. The convergence displacement, single rod extensometer and multi rod extensometer around tunnel and cracks in concrete wall were measured, it was confirmed that the measured values were converged within allowable level. 3. The empirical formular of ground vibrations with 90% confidence lines for PD-3 was given as follow.

목차

Abstract

1. 서론

2. 연구 대상지역의 지질특성 몇 주변환경

3. 주요대상물의 진동허용기준 설정

4. 발파진동 및 변위계측

5. 결과 및 해석

6. 결론

참고문헌

키워드

지반진동 허용진동치 크기 제어발파 진동추정식 ground vibration allowable blast vibration level controlled blast empirical formular