نتایج جستجو برای: reinforced tunnel
تعداد نتایج: 79303 فیلتر نتایج به سال:
This paper describes a method to analyze DC electric field generated by an railway considering influence of constructions. The finite element is effective solve problem including the constructions arbitrary shape, however analysis becomes time-consuming if includes steel material having fine structure such as reinforced concrete. authors introduced modeling methods concrete structures pole and ...
abstract background: the pathophysiology of carpal tunnel syndrome is associated with increased intracarpal canal pressure. recently, palmaris longus has been introduced as an independent risk factor for the development of carpal tunnel syndrome. the purpose of this study was to assess the association of carpal tunnel syndrome with the presence of palmaris longus tendon and functional superfi...
The in-service condition of steel fiber-reinforced shotcrete installed more than 20 years ago as single-shell rock support lining in the Nordkapp subsea road tunnel was investigated. novelty this study is comparison with water–glass and alkali-free activators a saline groundwater environment. lowest density obtained at joints between two adjacent layers. In case accelerator, ettringite enrichme...
BACKGROUND Wrist anthropometrics and posture have been implicated in the development of carpal tunnel syndrome, yet it remains unclear how external measurements relate to carpal tunnel parameters in neutral and non-neutral postures. The purposes of this study were (i) to evaluate the effect of slice orientation on several indices of carpal tunnel size and shape and (ii) to examine the relations...
When a tunnel passes through weak soil with different conditions, or there is a thin layer of soil on top of the tunnel, the mass of soil or rock must be stabilized. In addition, an excavation method must be chosen and applied in order to control the amount of subsidence and convergence which are among the most significant factors in excavation a tunnel especially in urban area, since the soil ...
Abstract The current paper considers and summarize the elaborated inspection of existing condition operational capacity structure a tunnel beneath National Palace Culture together with collected data conclusion concerning top slab to undertake an additional load from secondary track light rail load. It also includes assessment durability compliance regulation requirements. report - review analy...
This paper presents a proposed static test and numerical study on the mechanical properties of steel-shell–concrete-structure-immersed tunnel nodes, which is used to investigate seismic performance damage mechanism nodes. The based immersed tube project in deep China channel, nodes representing outermost innermost vertical walls tunnel, i.e., L-shaped T-shaped node specimens, were designed fabr...
geophysical techniques remain the only ways to remotely and non-destructively sense the earth’s near subsurface and as such have the most promising prospect for rapid and accurate detection of underground tunnels. today, electrical resistivity and seismic refraction geophysical methods have been greatly developed to identify structures and underground cavities. in this study, the ability of the...
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