http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Mingju Zhang (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
A Prefabricated Underground Cylindrical Garage and a Corresponding Stiffness Analysis
Zhenbo Zhang,Pengfei Li,Zheng Li,Mingju Zhang,Haocheng Xiong 한국강구조학회 2020 International Journal of Steel Structures Vol.20 No.3
This paper presents a design of a prefabricated structure for an underground cylindrical garage. The performance of this structure and the node connections in terms of lateral stiff ness is investigated, which is critical to the safety of the excavation process. Analytical solutions of the lateral stiff ness of the prefabricated structure are derived considering compatible displacement. A 3D model of the prefabricated structure is developed and used in the numerical simulation to verify the theoretical model. As the key factor of the lateral stiff ness of the prefabricated structure, the lateral stiff ness of the node is also obtained via laboratory testing. Three connection nodes are fabricated according to the design and are tested in the laboratory. The infl uence of the cross-sectional area of the connection beam and the thickness of the column base on the lateral stiff ness of the connection node is also investigated in the laboratory test.
-
Evaluation of Tunnel Face Stability Subjected to Seismic Load Based on the Non-associated Flow Rule
Qiguang Di,Pengfei Li,Mingju Zhang,Caixia Guo,Fan Wang,Yingjie Wei 대한토목학회 2022 KSCE Journal of Civil Engineering Vol.26 No.5
Reasonable determination of the stability of the tunnel face under complex conditions is necessary for safe construction. This paper focuses on the seismic stability of the tunnel face in cohesion-frictional soils based on the non-associated flow rule. The pseudo-static approach is adopted to reflect the seismic effect. An analytical model is proposed based on the limit analysis method. A series of numerical simulations are performed to verify the rationality of the theoretical model. Then, parametric analyses are carried out. Results show that the proposed model is reasonable to investigate the tunnel face stability under the seismic load. The study indicates that it is essential to consider not only the seismic load but also the non-associated flow rule when determining the limit support pressure of tunnel face, especially in the soils with high friction angle or unit weight.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
