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| 1 | Application and reliability analysis of DPM system in site investigation of HK weathered granite显示文摘A drilling process monitor (DPM) for ground characterization of weathered granite is presented. The monitor is portable and can be mounted on a hydraulic rotary drilling rig to record various drilling parameters in real time during normal subsurface in- vestigation. The identification method for dominative and subsidiary interfaces has been established. The study reveals that the monitored drilling parameters are dependent on geotechnical materials and can be further applied to characterize ground interfaces. The t-test between manual logging and DPM logging has been carried out. The results show that the DPM has high accuracy in inter- faces detection and well agreement with the manual logging. The findings show that the device and data analysis method are of po- tential application in subsurface drilling exploration in weathered granites. It also seems to have prospective uses in the determination of orebody boundary as well as in the detection of geohazards. | Zhuoying Tan Meifeng Cai Zhongqi Yue L.G. Tham C.F. Lee | 2005 | Journal of University of Science and Technology Beijing2005，12，6： | 12 |
| 2 | Tidal flat erosion of the Huanghe River Delta due to local changes in hydrodynamic conditions显示文摘An ideal nature system for the study of post-depositional submarine mass changing under wave loading was selected in the inter-tidal platform of the subaqueous Huanghe River Delta, a delta formed during period from 1964 to 1976 as the Huanghe River discharged into the Bohai Gulf by Diaokou distributary. A road embankment constructed for petroleum recovery on the inter-tidal platform in 1995 induced the essential varieties of hydrodynamic conditions on the both sides of the road. With both sides sharing similarities in(1) initial sedimentary environment,(2) energetic wave loading,(3) differential hydrodynamic conditions in later stages,(4) enough long-range action, and(5) extreme shallow water inter-tidal platforms; the study is representative and feasible as well. Two study sites were selected on each side of the road, and a series of measurements, samplings, laboratory experiments have been carried out, including morphometry, hydrodynamic conditions, sediment properties, granularity composition, and fractal dimension calculation of the topography in the two adjacent areas. It was observed that in the outer zone, where wave loading with high magnitude prevailed, the tidal flat was bumpy and exhibited a high erosion rate and high fractal dimension. Further, the fractal dimension diminished quickly, keeping with the enlarging of calculative square size. However in the inner zone, where the hydrodynamic condition was weak, the tidal flat was flat and exhibited a low erosion rate and low fractal dimensions; the fractal dimension diminished with the enlarging of calculative square size. The fractal dimensions in the different hydrodynamic areas equalized increasingly as the calculative square size accreted to threshold, indicating that the hydrodynamic condition plays a significant role in topography construction and submarine delta erosion process. Additionally, the later differentiation of sediment properties, granularity composition, microstructure characteristics, and mineral composition induced by the different hydrodynamic conditions can also contribute to the variation of topography and sea-bed erosion in the two adjacent areas. | JIA Yonggang ZHENG Jiewen YUE Zhongqi LIU Xiaolei SHAN Hongxian | 2014 | Acta Oceanologica Sinica2014，33，7： | 7 |
| 3 | Extended Sneddon and Muki solu-tions for multilayered elastic materials显示文摘 | AI Zhiyong YUE Zhongqi | 2002 | International Journalof Engineering Science2002，40，13： | 1 |
| 4 | Efects of tire-pavement contact pressure distributions on the response of asphalt concrete pavements 显示文摘 | Yue Zhongqi Svec Otto J | 1995 | Canadian Joln''nal of Civil Engineering1995，22，5： | 1 |
| 5 | Finite Element Modeling of Ceomaterials Using Digital Image Processing显示文摘 | YUE Zhongqi CHEN S THAM L C | 2003 | Computers and Geotechnics2003，30，37： | 1 |
| 6 | Solutions for the thermoelastic problems in vertically inhomogeneous media显示文摘 | Yue Zhongqi | 1988 | Acta Mechnica Sinica1988，4，2： | 1 |
| 7 | Structural reliability analysis for implicit performance function using artificial neural network显示文摘 | DENG Jian GU De-sheng LI Xi-bing YUE Zhongqi | 2005 | Struztural Safety2005，27，1： | 1 |
| 8 | On cause hypotheses of earthquakes with extemal tectonic plate and /or internal dense gas loadings 显示文摘 | Yue Zhongqi Quentin | 2014 | Acta Mechnica2014，225，： | 1 |
| 9 | Waterproof of rock joint with lead strip for splitting tuff sheet in ancient China quarrying caverns显示文摘This paper presents the relics of rock joints caulked with lead strips, unearthed by the authors in 2007 and 2008. The relics were in ancient quarry caverns in Shepan Island, Zhejiang Province, eastern China. The quarry activities were mainly carried out for production of regular tuff stone plates about 800 years ago. Each of the lead strips was sealed into a rock joint by punching manually and carefully. At present, the lead strips still contact tightly with the rock joints and new mineral cerussite is found to have formed at the contact surfaces between the lead strip and its caulked rock joint. The use of lead strips caulking rock joints in quarry caverns is found for prevention of water from seeping out of the country rocks into quarry cavern bases, where all of the in-situ intact tuff rock was manually and near-horizontally split into thin rock sheets one by one for production of regular tuff plates. Furthermore, it is found that the tensile splitting of tuff sheets at the cavern base required the intact rocks at the cavern base had to be dry. Through this horizontal base splitting for tuff sheets from the top to the bottom, a dome-shape interior space was formed for each rock cavern with the near horizontal imprints of thin sheet layers permanently on the sidewalls. | YANG ZhiFa ZHANG LuQing YUE ZhongQi ZHANG ZhongJian YANG TianYao LIN XianJian TAO KeJie ZHU JieWang | 2012 | Science China(Technological Sciences)2012，55，4： | 1 |
| 10 | Transient plane-strain response of multilayered elastic cylinders to axisymmetric impulse显示文摘 | Yin Xiaochun Yue Zhongqi | 2003 | ASME Journal of Applied Mechanics2003，69，： | 1 |
| 11 | Model-free adaptive robust control method for high-speed trains显示文摘Aiming at the robustness issue in high-speed trains(HSTs)operation control,this article proposes a model-free adaptive control(MFAC)scheme to suppress disturbance.Firstly,the dynamic linearization data model of train system under the action of measurement disturbance is given,and the Kalman filter(KF)based on this model is derived under the minimum variance estimation criterion.Then,according to the KF,an anti-interference MFAC scheme is designed.This scheme only needs the input and output data of the controlled system to realize the MFAC of the train under strong disturbance.Finally,the simulation experiment of CRH380A HSTs is carried out and compared with the traditional MFAC and the MFAC with attenuation factor.The proposed control algorithm can effectively suppress the measurement disturbance,and obtain smaller tracking error and larger signal to noise ratio with better applicability. | Zhongqi Li Liang Zhou Hui Yang Yue Yan | 2024 | Transportation Safety and Environment2024，6，1： | 0 |
| 12 | Extended wet sieving method for determination of complete particle size distribution of general soils显示文摘The traditional standard wet sieving method uses steel sieves with aperture?0.063 mm and can only determine the particle size distribution(PSD)of gravel and sand in general soil.This paper extends the traditional method and presents an extended wet sieving method.The extended method uses both the steel sieves and the nylon filter cloth sieves.The apertures of the cloth sieves are smaller than 0.063 mm and equal 0.048 mm,0.038 mm,0.014 mm,0.012 mm,0.0063 mm,0.004 mm,0.003 mm,0.002 mm,and 0.001 mm,respectively.The extended method uses five steps to separate the general soil into many material sub-groups of gravel,sand,silt and clay with known particle size ranges.The complete PSD of the general soil is then calculated from the dry masses of the individual material sub-groups.The extended method is demonstrated with a general soil of completely decomposed granite(CDG)in Hong Kong,China.The silt and clay materials with different particle size ranges are further examined,checked and verified using stereomicroscopic observation,physical and chemical property tests.The results further confirm the correctness of the extended wet sieving method. | Shengnan Ma Yi Song Jiawei Liu Xingyu Kang Zhongqi Quentin Yue | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024，16，1： | 0 |
| 13 | A Compact and Robust Regenerative Amplifier Pump Source for High Repetition Rate Terahertz Parametric Amplifier显示文摘In this paper we report a compact and robust regenerative amplifier developed as the pump laser for a high repetition rate terahertz parametric amplifier.With properly chosen pump source and carefully designed cavity,Nd∶YVO4 crystal,and laser beam collimator,a maximum output pulse energy of 480μJ has been achieved at the repetition rate of 10 kHz.The output laser has a nearly Gaussian transverse profile and a narrow bandwidth of 0.2 nm.Longterm monitoring shows an root mean square power fluctuation of about 1%.These characteristics satisfy all requirements for high repetition rate terahertz parametric amplifier. | Huang Yue Xu Hang Xu Jinqiang Feng Liwen Wang Tianyi Wang Lina Liu Zhongqi Huang Senlin Liu Kexin | 2022 | 激光与光电子学进展2022，59，21： | 0 |
| 14 | Complete solutions for elastic fields induced by point load vector in functionally graded material model with transverse isotropy显示文摘The paper develops and examines the complete solutions for the elastic field induced by the point load vector in a general functionally graded material(FGM)model with transverse isotropy.The FGMs are approximated with n-layered materials.Each of the n-layered materials is homogeneous and transversely isotropic.The complete solutions of the displacement and stress fields are explicitly expressed in the forms of fifteen classical Hankel transform integrals with ten kernel functions.The ten kernel functions are explicitly expressed in the forms of backward transfer matrices and have clear mathematical properties.The singular terms of the complete solutions are analytically isolated and expressed in exact closed forms in terms of elementary harmonic functions.Numerical results show that the computation of the complete solutions can be achieved with high accuracy and efficiency. | Sha XIAO Zhongqi YUE | 2023 | Applied Mathematics and Mechanics(English Edition)2023，44，3： | 0 |
| 15 | In situ strength profiles along two adjacent vertical drillholes from digitalization of hydraulic rotary drilling显示文摘Drilling speed and associated analyses from factual field data of hydraulic rotary drilling have not been fully utilized.The paper provides the reference and comparison for the utilization of drilling information from two adjacent vertical drillholes that were formed with the same hydraulic rotary drilling machine and bit.The analysis of original factual data is presented to obtain the constant drilling speed during net drilling process.According to the factual data along two adjacent drillholes,the digitalization results respectively include 461 linear zones and 210 linear zones with their constant drilling speeds and associated drilling parameters.The digitalization results can accurately present the spatial distributions and interface boundaries of drilled geomaterials and the results are consistent with the paralleled site loggings.The weighted average drilling speeds from 2.335 m/min to 0.044 m/min represent 13 types of drilled geomaterials from soils to hard rocks.The quantitative relation between drilling speed and strength property is provided.The digitalization results can statistically profile the basic strength quality grades of III to VI from soils to hard rocks.The thickness distributions of four strength quality grades are presented for each individual type of geomaterials along two drillholes.In total,50.2%of geomaterials from drillhole A are grade IV and 57.4%of geomaterials from drillhole B are grade III.The digitalization results can offer an accurate and cost-effective tool to quantitatively describe the spatial distribution and in situ strength profile of drilled geomaterials in the current drilling projects. | Xuefan Wang Peng Peng Zhigang Shan Zhongqi Yue | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023，15，1： | 0 |
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