
Shengxiang HuangWuhan University | WHU · Department of Surveying Engineering
Shengxiang Huang
About
37
Publications
0
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
364
Citations
Introduction
Publications
Publications (37)
Bridges in mining areas deform primarily because of surface subsidence caused by underground mining. Analysis of these deformations should consider the synergistic effects between the foundation soil and the bridge superstructure. The geology of mining areas, which is inherently complex, significantly effects the selection of soil mechanics paramet...
The feature extraction of blasting and natural earthquake waves can effectively discriminate between the two, and is conducive to mastering the time–frequency distribution and failure mechanism. However, feature extraction and discrimination between the two are often subject to external interference. A complete ensemble empirical mode decomposition...
Aiming at the problems of the current blasting vibration monitoring, such as unstable low-frequency performance, vulnerability to environmental interference, complex operation, and easily damaged, a new blasting vibration monitoring and feature recognition method of complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) and mu...
The rising sea level caused by global climate change might impact the human living environment. Global navigation satellite systems (GNSS)-multipath reflection (MR) technology holds significant potential for monitoring tide level changes. GNSS-MR technology typically employs low-order polynomials to extract the signal-to-noise ratio (SNR) residuals...
Blasting is widely used in mining, subway, demolition and groundwater-sealed tunnel, among them, the last one is widely concerned because of its many adjacent tunnels, high anti-seepage requirements, strict blasting control, etc. The identification of blasting characteristics is of great significance to the blasting construction and the safety eval...
Immersed tunnel elements need to be exactly controlled during their immersion process.
Position and attitude of the element should be determined quickly and accurately to navigate the element from the holding area to the final location in the tunnel trench. In this paper, a newly developed positioning and attitude determination system, integrating...
For ultra-long tunnels, the effective means of alignment and breakthrough accuracy optimization is to measure the gyro azimuths or transfer the coordinates of surface known points or the directions to the inside of the tunnel through vertical shafts or inclined shafts. Compared with bored tunnels, immersed tunnels have different engineering charact...
There is extremely strict precision requirement for the lateral breakthrough error of long immersed tunnel in the offshore island and tunnel project, but the point location layout range of the outer plane control network is limited in the artificial island, and the space inside the tunnel is long and narrow, which is not conducive to high-precision...
Bridge dynamic monitoring based on GNSS has become an important means of monitoring bridge structure. GNSS dynamic monitoring signals are often overwhelmed by strong noises and multipath errors. Thus the conventional data processing methods such as Fourier transform, wavelet analysis, and others have poor denoising effect or obtain unconspicuous dy...
When the dynamic characteristics of a bridge structure are analyzed though Hilbert–Huang transform (HHT), the noise contained in the bridge dynamic monitoring data may seriously affect the performance of the first natural frequency identification. A time-frequency analysis method that integrates wavelet threshold denoising and HHT is proposed to ov...
Mass redistribution within the Earth system deforms the surface elastically. Loading theory allows us to predict loading induced displacement anywhere on the Earth’s surface using environmental loading models, e.g., Global Land Data Assimilation System. In addition, different publicly available loading products are available. However, there are dif...
Currently, the main remote sensing-based crop mapping methods are based on spectral-temporal features. However, there has been a lack research on the selection of the multi-temporal images, and most of the methods are based on the use of all the available images during the cycle of crop growth. In this study, in order to explore the optimal tempora...
In this study, an approach using ground control point-free unmanned aerial vehicle (UAV)-based photogrammetry is proposed to estimate the volume of stockpiles carried on barges in a dynamic environment. Compared with similar studies regarding UAVs, an indirect absolute orientation based on the geometry of the vessel is used to establish a custom-bu...
As the majority of real signals (e.g. the dynamic information obtained during bridge monitoring) are nonstationary and nonlinear, empirical mode decomposition (EMD) and its derivatives have become popular research topics in recent years worldwide. Existing methods, such as EMD, ensemble empirical mode decomposition (EEMD), complementary ensemble em...
The immersed tunnel which is composed of elements has drawn more attention nowadays because of new advancements and developments. The elements are prefabricated somewhere else and floated to the tunnel site to be sunk into the prepared trench. Each element must line up exactly for the watertight gaskets to seal properly. The HZM immersed tunnel, a...
The GNSS (Global Navigation Satellite System) real-time compaction quality supervisory system realizes the on-site quality control and process control for the construction quality of the roller compaction for filling engineering. According to the need of the GNSS real-time supervisory system in how to calculate the rolling times quickly and accurat...
Abstract: For the construction of Hongkong-Zhuhai-Macao link immersed tunnel with the harsh environment and
ultrahigh precision requirement, particular care should be taken in the perspective of geodetic control. Firstly the
breakthrough error is distributed reasonably based on the error distribution theory. The design and implementation
of surveyi...
Compaction quality control in filling construction is of great significance to the stability and durability of the face rockfill dam. The conventional method of quality control mainly relies on manual process control and inspection for a limited number of test holes, which cannot meet the high requirements of modern mechanized construction and sche...
The immersed tunnel which is composed of elements has drawn more attention nowadays because of new advancements and developments. The elements are prefabricated somewhere else and floated to the tunnel site to be sunk into the prepared trench. Each element must line up exactly for the watertight gaskets to seal properly. The HZM immersed tunnel, a...
The immersed tunnel is composed of elements which are prefabricated elsewhere and floated to the tunnel site to be sunk into the prepared trench. Each element and the closure joint must line up exactly for the watertight gaskets to seal properly. For the construction of extra-long immersed tunnel, particular care should be taken in the perspective...
A landslide monitoring network construction within unified datum which combined fiducial points, working reference points, and monitoring points was intensively studied in the Three Gorges Reservoir area. With special long and narrow geographical location in the area, designing and building monitoring network was vital to the realization of landsli...
在构建并联组合模型进行变形预测时,单项模型权值的确定是个关键问题。为了提高变形预测的精度,以基坑监测数据为例,采用GM(1,1)模型与ARMA模型进行组合,在拟合误差平方和最小的准则下,使用粒子群算法求解两单项模型的最优权值,进而构建并联组合模型进行变形预测。结果表明,该方法融合各单项模型的优势,可以提高预测精度,避免求解线性规划问题,具有较好的实用性。
The Hong Kong-Zhuhai-Macau Bridge is an ongoing construction project which consists of a series of bridges and immersed tube tunnel crossing the Lingdingyang channel that will connect Hong Kong, Macau and Zhuhai. For the immersed tube tunnel, the establishment from the laying-out to surveying of surface ground GPS network was discussed in this pape...
Focusing on the limitations of conventional methods, a new method for testing the stability of landslide monitoring network for long and narrow areas was studied. The process was divided into three steps: Firstly, the relatively stability points were identified in the ITRF frame; Secondly, the reference points displacement was calculated in the loc...
By the stepped frequency-continuous wave technology, synthetic aperture radar and interferometric techniques, combining integrated ground-based SAR, can achieve high-precision monitoring of static and dynamic targets on the ground. This paper describes the dynamic deflection test carried out by the IBIS in the Wuhan Yangluo Yangtze River Bridge, an...
To avoid the problem of modes mixing caused by the intermittent in the data, a method of the ensemble empirical mode decompostion(EEMD) is studied in this paper along with its error effects. In this method the white noise is used to improve the decomposion results. Then the free vibration response can by obtained by the random decrement technique(R...
The construction period of large cable-stayed bridges is long, and the structure deformation is complicated. Any error during
construction will potentially affect the cantilever alignments and the internal forces. In order to ensure safety during construction
and exactly determine the cantilever alignments, dynamic deformation monitoring is needed...
To solve the problem that traditional solution of coordinate transformation parameters based on rotation angles depends strongly on initial value of parameter, the paper adopts quaternion to represent 3D rotation matrix, then puts forward a quaternion-based solution of non-linear 3D coordinate transformation parameters. The case study shows that th...
Construction progress of large cable-stayed bridge is complicated and the quality control is strict. Any disadvantage during construction may potentially affect the internal forces and deck alignments after it is open to traffic. To exactly evaluate the periodic alignments, internal forces and safety, geometrical and physical monitoring is needed d...
In view of 3D coordinate transformation nonlinear model, in order to adapt direct search method to solve the transformation parameters, it is necessary to make the model simple and operand small by way of two step measurements as follows. One is to transform the 7 parameters model to 4 parameters model by eliminating translation 3 parameters; the o...
Sutong Bridge is the largest cable-stayed bridge in the world and the construction process is complicated. It is located in lower reaches of Yangtze River and the effects of monsoons and diurnal cycles of temperature change are severe, which will bring great difficulties for construction control. In expectance of significant deformations of the pyl...
The multipath has long been considered a major error source in GPS applications. This paper analyzes the characteristics of the GPS signal multipath effects, bases on which do an experiment that considers the characteristics of dynamic deformation monitoring. The solution results of observation data to successive two days are processed by a method,...
According to the quality control needs of filling construction of the face rockfill dam, by means of the global satellite positioning technology, the wireless data communication technology, the computer technology and the data processing and analysis technology, and integrating with the roller compaction machine, the GPS real-time supervisory syste...