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Analysis and application of automatic deformation monitoring data for buildings and structures of mining area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 516-522页

作者： xiao jie1, 2. 3,{2., Chinese Academy of sciences, wuhan 4.0077, china 2. Key Laboratory of Dynamic geodesy, institute of geodesy and geophysics, Chinese Academy of sciences, wuhan 4.0077, china 3. Graduate School of Chinese Academy of sciences, Beijing 100049, china 4. Department of Surveying and Mapping, Taiyuan University of Technology, Taiyuan 03002., china Taiyuan Univ Technol Dept Surveying & Mapping Taiyuan 030024 Peoples R China Chinese Acad Sci Inst Geodesy & Geophys Key Lab Dynam Geodesy Wuhan 430077 Peoples R China Chinese Acad Sci Grad Sch Beijing 100049 Peoples R China

The buildings and structures of mines were monitored automatically using modern surveying technology. Through the analysis of the monitoring data, the deformation characteristics were found out from three aspects containing points, lines and regions, which play an important role in understanding the stable state of buildings and structures. The stability and deformation of monitoring points were analysed, and time-series data of monitoring points were denoised with wavelet analysis and Kalman filtering, and exponent function and periodic function were used to get the ideal deformation trend model of monitoring points. Through calculating the monitoring data obtained, analyzing the deformation trend, and cognizing the deformation regularity, it can better service mine safety production and decision-making.

关键词： wavelet analysis Kalman filtering deformation monitoring data analysis mine

Seismic Lg-wave Q tomography in and around Northeast china

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Seismic Lg-wave Q tomography in and around Northeast China

The variation of the estimated GPS instrumental bias and its possible connection with ionospheric variability

中国科学院地质与地球物理研究所第十届(2.10年度)学术年会

作者： Lian-Feng Zhao,xiao-Bi Xie,Wei-Min Wang,jin-Hai {2.,and Zhen-Xing Yao 1 institute of Geology and geophysics,Chinese Academy of sciences, Beijing,china. 2.institute of geophysics and Planetary Physics,University of California, Santa Cruz,Santa Cruz,California,USA. 3 institute of Tibetan Plateau Research,Chinese Academy of sciences, Beijing,china.

[1]We investigate regional variations in the Lg-wave quality factor(Q)in Northeast china and its vicinity with a tomographic *** seismic data recorded at 2. broadband stations from 12. regional events are used to extract Lg-wave spectra. Tomographic inversions are independently conducted at 58 discrete frequencies distributed log evenly between 0.05 and 10.0 *** simultaneously invert for the Lg-wave Q distribution and source spectra at individual frequencies without using any a priori assumption about the frequency dependence of the Q model and source *** best spatial resolution is approximately 1°×1°in well-covered areas for frequencies between 0.4 and 2.0 *** Lg Q shows significant regional variations and an apparent relationship with regional *** use a statistical method to investigate the regional variations of Lg Q and their frequency *** average Q(1 Hz Lg Q)in the entire investigated region is *** basins are usually characterized by lower average Q values (from 155 to 391),while volcanic mountain areas have relatively high average Q values (from 630 to 675).Lg Q generally increases with increasing ***,the frequency dependence has complex nonlinear features on a double-logarithmic scale, indicating that the commonly adopted power-law relationship may be oversimplified in a broad frequency *** frequency dependence varies in different geological areas,with larger variations seen at lower frequencies.

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Science china(Technological sciences) 2014年第1期57卷 67-79页

作者： zhang DongHe SHI Hao jin YaQi zhang Wei HAO YongQiang xiao Zuo Department of geophysics Peking University Department of geodesy and Geomatics Engineering University of New Brunswick Fredericton 4400 New Brunswick Canada

Based on the analysis of the satellite DCB data estimated by our method and the Center for Orbit Determination in Europe(CODE)from 1999 to 2.11,the features of the temporal variation of differential code biases(DCB)are ***,there are three types of variations in DCB on different time *** first one is the day-to-day variation that exhibits more obviously in solar maximum *** second one is the variation with about one year periodic variation that behaves more obviously from 1999 to *** last one is the monotonously descending tendency from 1999 to *** the basic ionospheric approximation in DCB estimation method,the features of the variability of the ionospheric morphology from 1999to 2.10 are also displayed based on the ionospheric characteristic *** can be concluded that the day-to-day and annual variation of the estimated global positioning system(GPS).DCB is related to the ionospheric *** variation of DCBs on solar cycle time scale includes the real hardware DCBs and pseudo-DCBs induced by ionospheric *** doubt,these kinds of"pseudo"variations of DCB will affect the precision of ionospheric total electron content(TEC)derived from the GPS *** addition,this study is helpful for evaluating the influence of ionospheric weather on TEC derivation and is also useful for developing one estimation method of DCB with more stability and precision through introducing a more practical ionospheric model.

关键词： DCB ionospheric variability GPS instrumental bias solar cycle

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电离层变化对短波传播时延的影响及改正

天文学报 1983年第4期 310-316页

作者：张金通中国科学院测量与地球物理研究所

本文直接用电离层的虚高计算短波传递时延,经太阳黑子11年周期变化、周年变化和周日变化的改正,得到了在1000公里以内短波时延计算的实用公式为: τ=τ_o+τ_r+τ_s+τ_d,(以ms为单位) τ_o=2.900, τ_r=+0.0010R,±0.0007 τ_s=-0.048c... 详细信息

本文直接用电离层的虚高计算短波传递时延,经太阳黑子11年周期变化、周年变化和周日变化的改正,得到了在1000公里以内短波时延计算的实用公式为: τ=τ_o+τ_r+τ_s+τ_d,(以ms为单位) τ_o=2.900, τ_r=+0.0010R,±0.0007 τ_s=-0.048cos(2.t_s+2.°.4),±0.014 ±6°.6 τ_d=0.105cos(2.t_d-63°.7)-0.102.os(4πt d/2.77°.0)±0.039 ±9°.6 ±0.039 ±2..1 式中τ_o为根据BIH经验公式计算的时延值;τ_r为太阳黑子相对数R对时延的影响;τ_s为周年变化对时延的影响;τ_d为周日变化对时延的影响;t_s、t_d分别表示年和日的数。以武昌时辰站的实际收时结果比对,每天接收BPV时号八次,用此公式计算全年所有的收时精度均优于用BIH经验公式所获得的收时精度。

关键词：电离层短波传播大气圈电波传播周日变化时延值传播时延高频(3兆赫-30兆赫) 短波

Numerical simulation of the dual laterolog for carbonate cave reservoirs and response characteristics

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Applied geophysics 2011年第1期8卷 79-85,96页

作者： Tan Mao-jin Gao jie Wang {2.-Chang zhang Song-Yang Key Laboratory of Geo-detection （china University of Geosciences） Ministry of Education Beijing 100083 China School of geophysics and Information Technology China University of Geosciences （Beijing） Beijing 100083 China College of geophysics and Information Engineering China University of Petroleum （Beijing） Beijing 102249 China SINOPEC Research institute of Exploration and Production Beijing 100083 China

Cave carbonate formations are characterized by heterogeneity, which makes electrical log prediction difficult. It is currently important to know how to use the dual laterolog to accurately identify and quantitatively evaluate caves. Using numerical simulation to calculate electrical log responses can provide a theoretical basis for cave identification and evaluation. In this paper, based on the dual laterolog principles, we first study different size spherical cave models using the finite element method （FEM）, determine a relation between resistivity and cave filling after comprehensively studying the log responses of cave models with different filling material, and finally study the dual laterolog responses on caves filled with shale, limestone, conglomerate, and thin laminated formation of sand and shale. The numerical results provide a theoretical basis for identification and evaluation of carbonate cave reservoirs.

关键词： carbonate cave reservoirs dual laterolog finite element method (FEM) numerical simulation.

Refertilization of ancient lithospheric mantle beneath the central North china Craton:Evidence from petrology and geochemistry of peridotite xenoliths

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Refertilization of ancient lithospheric mantle beneath the c...

中国科学院地质与地球物理研究所2.08学术年会

作者： Yan-jie Tang~(a,*),Hong-Fu zhang~a,Ji-Feng Ying~a,{2. zhang~a,xiao-Ming Liu~b a State Key Laboratory of Lithospheric Evolution,institute of Geology and geophysics,Chinese Academy of sciences, P.O.Box 982.,Bei{2.g 10002.,china b State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,china

The petrology and geochemistry of peridotite xenoliths in the Cenozoic basalts from Fanshi,the central North china Craton (NCC),provide constraints on the evolution of sub-continental lithospheric *** peridotite xenoliths are mainly spinel-facies lherzolites with minor *** lherzolites are characterized by low forsterite contents in olivines(Fo91), high-Cr# spinels and clinopyroxenes with low abundances of heavy REE(HREE).These features are similar to those from old refractory lithospheric mantle around the world,and thus interpreted to be relics of old lithospheric *** old lithospheric mantle has been chemically modified by the influx of melts,as evidenced by the Sr-Nd isotopic compositions of clinopyroxenes and relatively lower Fo contents than typical Archean Hthospheric mantle(Fo>92.5).The Sr-Nd isotopic compositions of harzburgites are close to EM1-type mantle,and of the lherzolites are similar to bulk silicate *** latter could be the result of recent modification of old harzburgites by asthenospheric melt,which is strengthened by fertile compositions of minerals in the ***,the isotopic and chemical heterogeneities of the Fanshi peridotite xenoliths reflect the refertilization of ancient refractory lithospheric mantle by massive addition of asthenospheric *** may be an important mechanism for the lithospheric evolution beneath the Central NCC.

关键词： Peridotite xenolitlis Mantle refertilization Lithospheric mantle North china Craton

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边坡位移监测数据的图形化表示方法

大地测量与地球动力学 2014年第5期34卷 160-163页

作者：肖杰张锦山西省测绘工程院太原030002 太原理工大学矿业工程学院太原030024

鉴于目前对位移监测数据的图形表示类型单一、显示的形变信息欠丰富等不足,以一边坡的位移实测数据为基础,对数据的图形化表示方法进行系统研究,分别从单个测点和多个测点两方面研究了测点在Δx、Δy、Δh分量、水平位移分量(Δx,Δy)... 详细信息

鉴于目前对位移监测数据的图形表示类型单一、显示的形变信息欠丰富等不足,以一边坡的位移实测数据为基础,对数据的图形化表示方法进行系统研究,分别从单个测点和多个测点两方面研究了测点在Δx、Δy、Δh分量、水平位移分量(Δx,Δy)和三维空间(Δx,Δy,Δh)中变形情况的显示。

关键词：位移图形变图形表示边坡监测形变监测变形特征

脆性岩石压拉强度比实用分析——以闪长岩、花岗岩和砂岩为例

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岩土力学 2015年第S2期 447-458页

作者：王宇李晓李守定王金波郑博张搏中国科学院地质与地球物理研究所页岩气与地质工程重点实验室

通过分析具有脆性跌落特性的脆性岩石单轴强度试验中的特征应力和破坏规律,探讨了脆性岩石单轴抗压起裂应力水平与Hoek-Brown材料常数im及抗拉强度的内在联系。在Griffith(格里菲斯)强度理论及脆性岩石拉伸和压缩两种条件下裂纹起裂、... 详细信息

通过分析具有脆性跌落特性的脆性岩石单轴强度试验中的特征应力和破坏规律,探讨了脆性岩石单轴抗压起裂应力水平与Hoek-Brown材料常数im及抗拉强度的内在联系。在Griffith(格里菲斯)强度理论及脆性岩石拉伸和压缩两种条件下裂纹起裂、扩展变化规律的基础上,定义起裂应力水平指标c c/iσσ,并重新定义适用于岩石材料的压拉强度比计算公式。采用TAW-2.00电液伺服岩石三轴试验机分别进行了闪长岩、花岗岩和砂岩3种脆性岩石的室内单轴强度试验,借助裂纹体积应变拐点得到了3种脆性岩石的特征应力值,探讨了特征应力强度值间的关系,验证了方法的可行性和实用性。结果表明,(1)由Griffith理论得出的单轴抗压强度为抗拉强度的8倍已不适用于脆性岩石材料,结合岩石的起裂应力和单轴压缩强度重新定义压拉比c c c8/iR=σσ;(2.Hoek-Brown强度破坏包络线仅给出了高应力状态im值,与应力水平相关,应当分段表示,拉应力及低压应力水平下满足c c c8/i im=R=×σσ,高压应力状态下c c c()12.i im=×σσ;(3)脆性岩石的拉抗强度和压缩起裂应力两者基本满足t c/8iσ=σ。研究结果作为一种实用估算方法,可为岩石拉强度比及Hoek-Brown材料常数mi值的确定提供一条新的思路。

关键词：脆性岩石起裂应力水平单轴抗压强度 Hoek-Brown材料常数mi Griffith强度准则

Preliminary experimental results by the prototype of Sanya Incoherent Scatter Radar

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Earth and Planetary Physics 2020年第6期4卷 579-587页

作者： XinAn Yue WeiXing Wan Han xiao LingQi Zeng ChangHai Ke BaiQi Ning Feng Ding BiQiang Zhao Lin jin Chen Li MingYuan Li JunYi Wang HongLian Hao Ning {2. Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Innovation Academy for Earth Science Chinese Academy of SciencesBeijing 100029China Beijing National Observatory of Space Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary sciences University of the Chinese Academy of SciencesBeijing 100049China Nanjing Research institute of Electronics Technology Nanjing 210039China

In the past decades,the Incoherent Scatter Radar(ISR)has been demonstrated to be one of the most powerful instruments for ionosphere *** institute of Geology and geophysics at the Chinese Academy of {2. was founded to build a state-ofthe-art phased-array ISR at Sanya(18.3°N,109.6°E),a low-latitude station on Hainan Island,named the Sanya ISR(SYISR).As a first step,a prototype radar system consisting of eight subarrays(SYISR-8)was built to reduce the technical risk of producing the entire large *** this work,we have summarized the preliminary experimental results based on the *** amplitude and phase among 2.6 channels were first calibrated through an embedded internal monitoring *** mean oscillation of the amplitude and phase after calibration were about 1 dB and 5°,respectively,which met the basic *** beam directivity was confirmed by crossing screen of the International Space *** SYISR-8 was further used to detect the tropospheric wind profile and *** derived winds were evaluated by comparison with independent radiosonde and balloon-based GPS *** SYISR-8 was able to observe several typical meteor echoes,such as the meteor head echo,range-spread trail echo,and specular trail *** results confirmed the validity and reliability of the SYISR-8 system,thereby reducing the technical risk of producing the entire large array of the SYISR to some extent.

关键词： incoherent scatter radar SYISR ionosphere phased array beam direction tropospheric wind meteor