All Issue

2017 Vol.27, Issue 1 Preview Page

Research Article

Reinforcement Bulb Body Pull-out Resistance Force Behavior Characteristics according to Ground Conditions

지반조건에 따른 보강구근체 인발저항력 거동 특성

JunYoung An1*
,
Jeonghoon Shim1
,
Jisu Jeong1
,
Seungho Lee1
안 준영1*
,
심 정훈1
,
정 지수1
,
이 승호1
1Department of Civil Engineering, Sangji University
1상지대학교 토목공학과
* 교신저자* Corresponding Author
March 2017. pp. 41-49
PDF XML Citation
Abstract

In this study, we tried to confirm the influence range in the ground due to Bulbed, Reinforcement change and ground conditions change through numerical analysis. By checking the increase width of the reinforcement effect accompanying the increase of Bulbed, grasping the trend accompanying the change of the ground conditions and deciding soil nail Reinforcement and Bulbed, so that economical construction will be carried out It can be judged that it can be utilized as basic material. In this paper, we analyzed the Displacement due to positional load of reinforcement by utilizing MIDAS GTS NX which is a universal numerical analysis program. In addition, it is necessary to ensure the diameter star economy of Bulbed size and Reinforcement by comparing / analyzing whether the Bulbed relaxation region of Reinforcement represents arbitrary characteristics in the ground in Sandy soil, Weathered granite soil ground due to soil nail pullout load Numerical analysis was conducted to select criteria that can be done.

Keywords
reinforcement
bulbed
numerical analysis
soil nail
pullout load

본 연구는 수치해석을 통해 구근체, 보강재 변화와 지반 조건 변화에 따른 지반 내 영향범위를 확인하고자 하였다. 구근체의 증가에 따른 보강효과 증가 폭을 확인하고 지반조건 변화에 따른 경향을 파악하게 되면 쏘일네일링의 보강재 및 구근체를 결정할 수 있게 되어, 경제적인 시공이 되도록 기초자료로 활용할 수 있을 것으로 판단된다. 본 논문에서는 범용 수치해석 프로그램인 MIDAS GTS NX를 활용하여 보강재 위치 별 하중에 따른 변위를 분석 하였다. 또한 쏘일네일의 인발하중에 따른 사질토, 화강풍화토 지반에서 보강재의 구근체 이완영역이 지반 내 어떠한 특성을 나타내는지 비교·분석 하여 구근체 크기와 보강재의 직경 별 경제성을 확보할 수 있는 기준을 선정하기 위한 수치해석을 수행하였다.

키워드
보강재
구근체
수치해석
쏘일네일
인발하중
References
1
An, J. Y., 2016, A Study on Analysis of Pull-out Resistance Behavior with Size of Reinforcement Variation, Sangji University Graduate School, pp. 35-36.
2
Armour, Tom., Groneck, Paul., Keelev, James. and Sharma, Sunil., 2000, Micropile Design and Construction Guidelines Implementation Manual, FHWA-SA-97-070, FHWA Office of Technology Applications, Washington, D. C, pp. 4-11~4-26.
3
Kim, J. Y., 2009, Numerical Analysis on Extension-Grouting Method for Improving Grout Shape of Soil-nail System, Hong-ik University, pp. 15-16.
4
Lee, B. J., Kim, S. S., Youn, J. S., and Lee, J. K., 2010, Pullout chacteristics of reinforcing body using re-injection grouting methods, Journal of Korean Geoenviromental Society, 11(10), 25-31.
10.18284/jss.2010.12.29.2.25
5
Seoul, 2006, Geotechnical Survey Manual, pp. 4.
6
Shim, Y. J., Lee, J. K., and Lee, B. J., 2012, Pullout characteristics of pressure reinjection-grouted reinforcements in decomposed granite soil, Journal of Korean Geoenviromental Society, 13(11), 61-68.
Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 27
  • No :1
  • Pages :41-49
  • Received Date : 2017-01-23
  • Revised Date : 2017-03-10
  • Accepted Date : 2017-03-14
  • DOI :https://doi.org/10.9720/kseg.2017.1.41
Journal Informaiton The Journal of Engineering Geology The Journal of Engineering Geology
Online Submission
  • NRF
  • KOFST
  • KISTI Current Status
  • KISTI Cited-by
  • crosscheck
  • orcid
  • open access
  • ccl
Journal Informaiton Journal Informaiton - close