Plasma Horizontal Displacement Measurement Using Flux Loops in IR-T1 Tokamak

This paper introduces the measurement principles and techniques of foundation pit’s pile body horizontal displacement. It is based on Dalian Maritime University station’s(Dalian Metro) construction. Then 26 monitoring measuring stations were built around the foundation pit. After 10 months’ measuring the data shows pile body horizontal displacement’s rule during foundation pit dewatering, excavation, support installing and the main structure of the construction. The maximum horizontal displacement conform the relevant requirement. In other words, it ensures the safety of the construction. At the same time, it points out that the pile horizontal displacement monitoring is key index of the information technology construction. Especially during the excavation of foundation, the pile horizontal displacement account for about 60%-80% of all. Steel support plays a significant role in horizontal displacement of the pit wall.

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Modeling and control of plasma horizontal displacement for HL-2A tokamak based on LSTM

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2020.112107 ◽

2021 ◽

Vol 162 ◽

pp. 112107

Author(s):

Xianfei Fu ◽

Bin Yang ◽

Shiqing Wang

Keyword(s):

Horizontal Displacement ◽

Modeling And Control ◽

Plasma Horizontal Displacement ◽

And Control

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Advantages of Complementary Stereo Images as Viewed with the Low-Temperature Field-Emission SEM

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100131206 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1314-1315

Author(s):

William P. Wergin ◽

Eric F. Erbe

Keyword(s):

Fold Increase ◽

Horizontal Displacement ◽

Three Dimensions ◽

Stereo Image ◽

Stereo Pair ◽

Sem Micrograph ◽

Left And Right ◽

The Common ◽

The Brain ◽

Pair Analysis

The eye-brain complex allows those of us with normal vision to perceive and evaluate our surroundings in three-dimensions (3-D). The principle factor that makes this possible is parallax - the horizontal displacement of objects that results from the independent views that the left and right eyes detect and simultaneously transmit to the brain for superimposition. The common SEM micrograph is a 2-D representation of a 3-D specimen. Depriving the brain of the 3-D view can lead to erroneous conclusions about the relative sizes, positions and convergence of structures within a specimen. In addition, Walter has suggested that the stereo image contains information equivalent to a two-fold increase in magnification over that found in a 2-D image. Because of these factors, stereo pair analysis should be routinely employed when studying specimens.Imaging complementary faces of a fractured specimen is a second method by which the topography of a specimen can be more accurately evaluated.

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The Nature of Mining-Induced Horizontal Displacement of Surface on the Example of Several Coal Mines

Archives of Mining Sciences ◽

10.2478/amsc-2014-0067 ◽

2014 ◽

Vol 59 (4) ◽

pp. 971-986 ◽

Cited By ~ 3

Author(s):

Krzysztof Tajduś

Keyword(s):

Underground Mining ◽

Mining Industry ◽

Horizontal Displacement ◽

Surface Slope ◽

Proportionality Coefficient ◽

Model Studies ◽

Displacement Vectors ◽

Mining Conditions ◽

Design Projects ◽

Academy Of Sciences

Abstract The paper presents the analysis of the phenomenon of horizontal displacement of surface induced by underground mining exploitation. In the initial part, the basic theories describing horizontal displacement are discussed, followed by three illustrative examples of underground exploitation in varied mining conditions. It is argued that center of gravity (COG) method presented in the paper, hypothesis of Awierszyn and model studies carried out in Strata Mechanics Research Institute of the Polish Academy of Sciences indicate the proportionality between vectors of horizontal displacement and the vector of surface slope. The differences practically relate to the value of proportionality coefficient B, whose estimated values in currently realized design projects for mining industry range between 0.23r to 0.42r for deep exploitations, whereas in the present article the values of 0.33r and 0.47r were obtained for two instances of shallow exploitation. Furthermore, observations on changes of horizontal displacement vectors with face advancement indicated the possibility of existence of COG zones above the mined-out field, which proved the conclusions of hitherto carried out research studies (Tajduś 2013).

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