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터널 안정화를 위한 페이스볼트의 효율적 배치에 관한 수치해석적 연구
서경원,배규진,Nishimura Kazuo,Tsuyoshi Domon 사단법인 한국터널지하공간학회 2006 한국터널지하공간학회논문집 Vol.8 No.2
For application of NATM, the self-supporting until installation of the supporting system must be satisfied. However, the face of a tunnel are always unsupported and therefore it is fairly vulnerable to tunnel collapses. Face blots are well known and widely used to prevent the deformation of the tunnel face and its circumference, which are installed horizontally toward the tunnel axis generally. To maximize the supporting effect of face bolts, this study has analysed the effective design patterns of face bolts by changing their installation angles. As the conclusion, it has been found that the axial displacement of the face increases slightly by installing the outermost bolts upward from the axis but surface settlement at 2.5D behind the face decreases up to 18%. 터널굴착시 NATM이 적용되기 위해서는 「굴착 후 지보공의 시공이 완료되기 전까지 막장이 자립하고 있을 것」을 전제조건으로 하고 있지만 터널막장은 항상 무보강의 상태가 계속되고 있고, 붕괴사고가 집중되고 있는 가장 취약한 부분이라고 할 수 있다. 이에 대한 대책공법 중 페이스볼트는 주로 막장전방을 향하여 수평으로 설치해 막장을 보강하는 공법으로 널리 알려져 있다. 본 연구는 페이스볼트의 설치효과를 극대화시키기 위해 일률적인 수평설치의 패턴을 변경해 보다 효율적인 설계패턴에 대해 검토하였다. 그 결과, 최외곽부의 볼트들을 터널 축방향의 윗방향으로 배치함으로써 막장 수평변위는 다소 증가하지만, 막장후방 2.5D의 천단침하는 약 18% 줄일 수 있는 것이 확인되었다.
Carr, Steven A.,Abbatiello, Susan E.,Ackermann, Bradley L.,Borchers, Christoph,Domon, Bruno,Deutsch, Eric W.,Grant, Russell P.,Hoofnagle, Andrew N.,Hü,ttenhain, Ruth,Koomen, John M.,Liebler, Danie The American Society for Biochemistry and Molecula 2014 Molecular and Cellular Proteomics Vol.13 No.3
<P>Adoption of targeted mass spectrometry (MS) approaches such as multiple reaction monitoring (MRM) to study biological and biomedical questions is well underway in the proteomics community. Successful application depends on the ability to generate reliable assays that uniquely and confidently identify target peptides in a sample. Unfortunately, there is a wide range of criteria being applied to say that an assay has been successfully developed. There is no consensus on what criteria are acceptable and little understanding of the impact of variable criteria on the quality of the results generated. Publications describing targeted MS assays for peptides frequently do not contain sufficient information for readers to establish confidence that the tests work as intended or to be able to apply the tests described in their own labs. Guidance must be developed so that targeted MS assays with established performance can be made widely distributed and applied by many labs worldwide. To begin to address the problems and their solutions, a workshop was held at the National Institutes of Health with representatives from the multiple communities developing and employing targeted MS assays. Participants discussed the analytical goals of their experiments and the experimental evidence needed to establish that the assays they develop work as intended and are achieving the required levels of performance. Using this “fit-for-purpose” approach, the group defined three tiers of assays distinguished by their performance and extent of analytical characterization. Computational and statistical tools useful for the analysis of targeted MS results were described. Participants also detailed the information that authors need to provide in their manuscripts to enable reviewers and readers to clearly understand what procedures were performed and to evaluate the reliability of the peptide or protein quantification measurements reported. This paper presents a summary of the meeting and recommendations.</P>
터널 안정화를 위한 페이스볼트의 효율적 배치에 관한 수치해석적 연구
서경원,배규진,니시무라 카즈오,도몬 츠요시,Seo, Kyoung-Won,Bae, Gyu-Jin,Nishimura, Kazuo,Domon, Tsuyoshi 한국터널지하공간학회 2006 터널기술 Vol.8 No.2
터널굴착시 NATM이 적용되기 위해서는 "굴착 후 지보공의 시공이 완료되기 전까지 막장이 자립하고 있을 것"을 전제조건으로 하고 있지만 터널막장은 항상 무보강의 상태가 계속되고 있고, 붕괴사고가 집중되고 있는 가장 취약한 부분이라고 할 수 있다. 이에 대한 대책공법 중 페이스볼트는 주로 막장전방을 향하여 수평으로 설치해 막장을 보강하는 공법으로 널리 알려져 있다. 본 연구는 페이스볼트의 설치효과를 극대화시키기 위해 일률적인 수평설치의 패턴을 변경해 보다 효율적인 설계패턴에 대해 검토하였다. 그 결과, 최외곽부의 볼트들을 터널 축방향의 윗방향으로 배치함으로써 막장 수평변위는 다소 증가하지만, 막장후방 2.5D의 천단침하는 약 18% 줄일 수 있는 것이 확인되었다. For application of NATM, the self-supporting until installation of the supporting system must be satisfied. However, the face of a tunnel are always unsupported and therefore it is fairly vulnerable to tunnel collapses. Face blots are well known and widely used to prevent the deformation of the tunnel face and its circumference, which are installed horizontally toward the tunnel axis generally. To maximize the supporting effect of face bolts, this study has analysed the effective design patterns of face bolts by changing their installation angles. As the conclusion, it has been found that the axial displacement of the face increases slightly by installing the outermost bolts upward from the axis but surface settlement at 2.5D behind the face decreases up to 18%.