지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Transportation and further expansion of social infrastructure was needed along the development of urbanization and population concentration. To use the underground space due to the lack of availability of land, it is inevitable to intersect between present structure and tunnel during construction. Soil grouting is one of the ground improvement methods to reinforce weak soil around the underground structures by injection of grouting liquid. Some of central columns of an upper structure are damaged during injection of grouting liquid by injection pressure. To investigate and improve the stability of the tunnel, three dimensional analysis are performed with full construction stages which includes the construction of present underpass, damaging columns of the underpass, reinforcing the columns by H-pile and shear walls, and excavation and construct tunnel. The arrangement of grouting holes such as curtain and horizontal type affects largely to the stability of upper structure and horizontal arrangement diminish the shear forces which is the cause of damage of central columns. The liquid injection type of reinforcement for tunnel is not recommended while the presence of upper structure with columns. Wall type reinforcing is utilize for permant support of upper structures which is affected by grouting injection pressure. H-pile is utilize for temporary support, but not for permanent since the sharing of shear forces is not much to shear wall during tunnel construction.
목차
등록된 정보가 없습니다.
참고문헌 (17)
참고문헌 신청
T. I. Addenbrooke / 2001 / Twin Tunnel Interation: Surface and Subsurface Effects / The International Journal of Geomechanics 1(2):249~271
A. M. Hefny / 2004 / Parametric Studies on the Interation between Existing and New Bored Tunnels / Tunnelling and Underground Space Technology 19(4~5):471
S. A. Mazek / 2003 / Use of Grouting to Reduce Deformations of an Existing Tunnel Underpassed by Another Tunnel / Proc. of 3 rd international Specialty Conference on Grouting and Ground Treatment :1570~1581
J. K. L. Pan / 2006 / Back Analysis of Cut and Cover Tunnels in Close Proximity to an Operating Railway in Hong Kong / Tunnelling and Underground Space Technology 21(3~4):453~454
D. N. Chapman / 2006 / The use of Model Tests to Investigate the Ground Displacements Associated with Multiple Tunnel Construction in Soil / Tunnelling and Underground Space Technology 21(3~4):413
A. M. Hefny / 2004 / Parametric Studies on the Interation between Existing and New Bored Tunnels / Tunnelling and Underground Space Technology 19(4~5):471
S. A. Mazek / 2003 / Use of Grouting to Reduce Deformations of an Existing Tunnel Underpassed by Another Tunnel / Proc. of 3 rd international Specialty Conference on Grouting and Ground Treatment :1570~1581
J. K. L. Pan / 2006 / Back Analysis of Cut and Cover Tunnels in Close Proximity to an Operating Railway in Hong Kong / Tunnelling and Underground Space Technology 21(3~4):453~454
D. N. Chapman / 2006 / The use of Model Tests to Investigate the Ground Displacements Associated with Multiple Tunnel Construction in Soil / Tunnelling and Underground Space Technology 21(3~4):413
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