jgg

大地测量与地球动力学

	Home \| About Journal \| Editorial Board \| Submission Guidelines \| \| Open Access Statement \| \| Contact Us \| 中文

Submission Online

Manuscript
Tracking

Editorial Office

Editor-in-Chief

Online befor
Printed

Search

Current Issue

	2010 Vol.30 Issue.Supp.2 Published 2010-12-18

地壳形变与地震

	1	HOW TO IDENTIFY EARTHQUAKE PRECURSOR?
		Qiu Zehua
		The research on earthquake precursors is the foundation of earthquake forecast, but it is composed of a number of careful case studies low. The research on earthquake precursor must be put in advance of the attempt of earthquake forecast. Criterion is needed for the judgment of a possible earthquake precursor. Neither any academic authority nor any prevailing hypothesis can give a terminal conclusion. The cases are not yet as enough for credible statistics. Instead, a natural procedure are adopted to identify the anomalous changes in observation, in which one has to 1) demonstrate a normal background, 2) exclude interfering influences, and 3) show the relevance to the earthquake. The earthquake-relevance plays the key role. Reliable earthquake precursors require accurate observations. The demand of research on earthquake precursor is that a priority in planning, as well as drafting technical standards, future observations aiming at earthquake forecast should be given.
		2010 Vol. 30 (Supp.2): 1-5 [Abstract] ( 1642 ) PDF (428 KB) ( 3403 )

	6	EFFECT OF EARTH FLATTENING ON PRECISE CALCULATION OF TIDAL GENERATION FORCE
		Hao Hongtao;Li Hui;Liu Ziwei;and Wei Jin;
		In the precise calculation of tidal generating force,the effect of earth flattening is a part that must be taken into account. We have computed the magnitude of the effect of earth flattening to the tidal generating force of the moon and the sun, and analyzed the space characters and frequency characters of the effect. In addition, we have carried out harmonic development of the effect of earth flattening on generating tidal potential of the moon by use of the ELP200085 moon ephemeris. The results show that the effect of earth flattening on the tidal generating force is close to 2×10 ^-11 ms^-2, and there are 16 waves with the amplitude bigger than 4×10 ^-13ms^-2 in the developed results.
		2010 Vol. 30 (Supp.2): 6-9 [Abstract] ( 1804 ) PDF (440 KB) ( 3286 )

	10	EXTERNAL CALIBRATION OF GRAVITY GRADIENT MEASUREMENT BASED ON GLOBAL GRAVITY MODELS
		Wu Yunlong;Li Hui;Liu Ziwei;and Wan Shicheng;
		The methodology of external calibration of gradiometry observations based on global gravity models are studied. The analysis and comparison of simulated computation results indicate that it is efficient to calibrate the gradiometry observations with global gravity models.
		2010 Vol. 30 (Supp.2): 10-13 [Abstract] ( 1979 ) PDF (994 KB) ( 3844 )

	14	CALCULATION OF FOCAL DEPTH BY USE OF sPn PHASE IN INNER MONGOLIA
		Liu Fang
		On the basis of the digital waveform records of Tuoketuo M4.2 earthquake on June 10, 2003, and M≥ 3.0 earthquakes of different stations in epicenteral distance of 1 000 km in Inner Mongolia,the sPn phase is analyzed and the focal depthes of these earthquakes are calculated.The results show that this method is simple and accurate for using time difference of sPn and Pn to measurate local focal depth of near shoke within crust.
		2010 Vol. 30 (Supp.2): 14-17 [Abstract] ( 1904 ) PDF (591 KB) ( 3190 )

	18	ANALYSIS OF INTERFERENCE FACTORS OF DEFORMATION SOLID TIDE DATA IN SHANGHAI
		Wang Xiaoping;Yin Jingyuan;Chen Jun;and Ni Youzhong
		The digital data of deformation solid tide in Shanghai is analyzed and the interference factors and their mechanisms of different disturbances such as pressure，thunder and lightning，decoration in the cave and instrument trouble are discussed.It is also discussed how to distinguish the interference factors and the anomalies before the earthquakes．
		2010 Vol. 30 (Supp.2): 18-21 [Abstract] ( 1837 ) PDF (1776 KB) ( 3234 )

	22	DIFFERENTIAL CHARACTERISTICS OF PARALLEL OBSERVATION DATA RECORDED BY PENDULUMTYPE TILTMETER AT LINFEN SEISMOSTATION
		Gao Zhenqiang;Li Yan;Feng Jianqin;Zhang Yanghui;Jin Hongliang;and Li Jun;
		Through the analysis of morphological patterns recorded with three kinds of tiltmeters——quartz pendulum, perpendicular pendulum and broadband perpendicular pendulum before several moderate earthquakes in the south of Shanxi, some anomalous reflects in the same observation direction for each instrument are identified before earthquakes. However, these anomalies did not show coincident variation, but show obvious differential features.Under the same station condition, anomaly difference is related to work periods, dynamical response range and recording frequency range of instrument. The slow earthquake phenomenon recorded by broadband perpendicular pendulum tiltmeter before and after Hejin earthquake illustrates the observation advantage of broadband deformation instruments.
		2010 Vol. 30 (Supp.2): 22-26 [Abstract] ( 2196 ) PDF (1120 KB) ( 3013 )

	27	ENERGY ANALYSIS METHOD BASED ON WAVELET PACKET TRANSFORMATION FOR EXPLOSION VIBRATION SIGNAL
		Xu Xueyong;Feng Qian;and Lei Jingya;
		The test and analysis of blasting vibration effects play an important part in the assessment of blasting safety and effect, but there are still many inadequacies in the data processing and analysis for the blasting vibration signals collected. On the basis of interpretation of the basic principles of wavelet transform, theoretical explanation of energy analysis method is given and the wavelet packet energy decomposition of an example of blasting vibration signal is carried out. The results show that wavelet packet energy decomposition method can better reveal the partial characteristics in different frequency bands of the signal and lay the theoretical basis for reliable assessment to construction blasting vibration response.
		2010 Vol. 30 (Supp.2): 27-30 [Abstract] ( 1786 ) PDF (604 KB) ( 3467 )

	31	EARTHQUAKE RECORDING ABILITY OF BOREHOLE STRAIN METER
		Song Mo;Qiu Zehua;and Tang Lei
		The earthquake recording ability of borehole strain meter is researched and calculation steps and processing methods are discussed by taking the data of Changping TJtype borehole strain meters as an example. 20 TJtype borehole strain meters that have been installed in mainland China for longer time and with better data archived are selected as the study objects,their earthquake recording ability lines are calculated and show their earthquake response range for event of Ms6.0. This formula not only can quantify a strain meter’s earthquake response ability in location range and magnitude, but also is a new scientific method for assess a seismic instrument. At the same time,on the basis of common understanding that the energy released in the precusory period is supposed to be less than that released by the actual earthquake,this formula is also useful for determining precursor’s location and magnitude range.
		2010 Vol. 30 (Supp.2): 31-35 [Abstract] ( 1746 ) PDF (1327 KB) ( 2999 )

	36	SELF-TEST ACCURACY OF 4-COMPONENT BOREHOLE STRAIN OBSERVATION
		Tang Lei;Qiu Zehua;and Song Mo
		According to the characteristic of 4component borehole strain observations, we analyzed the quality indicators about this observation：the selftest accuracy of the relative calibration. We described the selftest accuracy of the relative calibration and the problems about this method. By analyzing the mean, correlation coefficient, we have proposed different methods of the deviation calculated thus it improved the method of the selftest accuracy, so as far as possible objective assessment of quality of the observation can be evaluated.
		2010 Vol. 30 (Supp.2): 36-39 [Abstract] ( 1834 ) PDF (500 KB) ( 3044 )

	40	TECHNICAL EQUIPMENT FOR BOREHOLE STRAIN-OBSERVATION OF PBO OF USA
		Zhang Baohong
		This is a systematic introduction of the instrumentation and the detail technical requirements of borehole strain observation including the borehole strainmeters, additional observations, data sampling, data transmission, protection device, and electric power in the scientific project Plate Boundary Observation (PBO) of the USA.
		2010 Vol. 30 (Supp.2): 40-44 [Abstract] ( 1626 ) PDF (701 KB) ( 3072 )

	45	COMPARISON AND ANALYSIS OF DIFFERENT METHODS FOR OBSERVING CROSS FAULT DEFORMATION
		Li Jie;Feng Zhijun;Wang Qiang;Shen Jian;Yin Haitao;and Cui Juquan
		The varying characters of observations and disturbances of the cross fault short leveling, short baseline and MD fault creep testing apparatus at Anqiu seismic station are deseribed,and the relationship of above three methods using correlation analysis method is discussed. The results show that: the short leveling observations are affected by temperature and ground water level, and the observations are negatively correlated to temperature, positively correlated with ground water level. There is a obvious correlation between baseline and temperature, the related coefficient is about 0.95. The level orthogonal, skew and vertical direction observation of MD fault creep testing apparatus are all affected by temperature. In long time, there is a good correlation between the level orthogonal, skew observations and temperature, and the related coefficient is 0.98 and 0.99 respectively, but the correlations are more complex in short time, the changes of observed deformation are ahead of temperature changes. The vertical observations are different correlated with temperature in different seasons. There is a good coherence between short baseline and MD fault level orthogonal observation, we can do some comparative observations in suitable fields. And the short leveling and MD vertical direction observation have no obvious coherence. The above two observation methods are unfit to observe simultaneously when the MD apparatus is installed in semibasement.
		2010 Vol. 30 (Supp.2): 45-49 [Abstract] ( 1795 ) PDF (1312 KB) ( 3190 )

	50	SUMMARY OF ABILITY FOR CATCHING PRECURSORS BEFORE EARTHQUAKE FROM FIXED-TILT OBSERVATIONS
		Lü Pinji;Chen Zhiyao;Zhao Bin;Li Zhengyuan ;and Lin Suiping
		From the fixedtiltmeter observation published in three decades years, the achievements of data processing methods are summarized.Through the statistics of the anomalies of the fixed tilt observation and their amplitude near the epicenter within a certain scope before earthquakes.We can obtain the magnitude of precursory tilt anomaly,the statistic relations of the anomaly with epicenter location and earthquake magnitude,all of these have the referential meaning for the future development and the layout of stations.
		2010 Vol. 30 (Supp.2): 50-56 [Abstract] ( 1678 ) PDF (1645 KB) ( 3654 )

	57	DISCUSSION ON FEASIBILITY OF BOREHOLE STRAIN OBSERVATION IN SOIL
		Qiu Zehua
		Tests for observing strain changes in soil with borehole strainmeters are needed in researches of earthquake forecast as well as geodynamics. The observation can be testified if solid earth tides will be clearly recognized. The difference of observation in soil from in rocks lies on the looseness of the medium. Therefore, the strainmeter should be placed significantly deeper in order to solve the problem of permanent deformation. Meanwhile, since soil responds elastically to small dynamic deformation, and the tides of strain are on the order of 10^-8, the placement may not be necessarily very deep. Results of theoretic analysis indicate that, although resolution of borehole strainmeter for observation in soil is lower than in rocks, soil deforms much larger than rocks for same stress changes will benefit the observation of tides in soil. Existence of pore liquid will bring about disturbance to borehole strain observation and the sensor should be placed beyond the depth close to water table. It will eventually be checked through practical tests.Whether the present borehole strainmeters can record earth tides.
		2010 Vol. 30 (Supp.2): 57-62 [Abstract] ( 1787 ) PDF (586 KB) ( 2318 )

	63	EARTHQUAKE-REFLECTING CAPACITY OF CAVE BODY STRAIN OBSERVATION
		Lǖ Pinji;Chen Zhiyao;Zhao Bin;Li Zhengyuan ;and Lin Suiping
		The published observation results from hole body strain data for more than 20 years were collected and some methods to process strain data were summarized. Through the abnormality statistic of earthquakes happened near the stations, the relation between the abnormality and epicenter, magnitude were found out.
		2010 Vol. 30 (Supp.2): 63-67 [Abstract] ( 1743 ) PDF (1290 KB) ( 2865 )

	68	INVESTIGATION ON INTERFERENCE FACTORS OF CROSS-FAULT DEFORMATION OBSERVATION
		Lou Guanshou ;Zhou Wei ;Jin Peng ;Liu Wenyi ; and Li Jie
		The statistical analysis of disturbance types of cross-fault deformation shows that the interference factors mainly consist of meteorology, groundwater level, vibration, load fluctuation ,human disturbance and so on. For example, subsidence and rise of monument may be caused by the variation of precipitation and groundwater level or the human disturbance like construction nearby, the height change may be caused by the load fluctuation in one side of fault due to reservoir, variation of temperature and pressure can influence crustal deformation,and there are other interference factors like vibration caused by external force.
		2010 Vol. 30 (Supp.2): 68-74 [Abstract] ( 1879 ) PDF (1725 KB) ( 3101 )

	75	CONVERSION BETWEEN MapInfo DATA AND Google Earth DATA
		Ren Shanjun;Wang Qi;and Yang Shaomin
		The differences between MapInfo data and Google Earth data had been analyzed and the resolution of the technical bottleneck had been proposed. At last a little tool based on MapInfo platform for converting the data from the format of MapInfo which is one of the most common GIS data, to the format of KML was developed.
		2010 Vol. 30 (Supp.2): 75-77 [Abstract] ( 1859 ) PDF (962 KB) ( 4207 )

	78	STUDY ON PRECISION UNCERTAINLY IN MEASUREMENT
		Wan Shicheng ;Xing Canfei ;Li Hui ;and Ling Mo
		The comparison between precision and uncertainty in measurement is down, and the superiority of the uncertainty is discussed. At last the conversion and expression of precision and uncertainty are summarised.
		2010 Vol. 30 (Supp.2): 78-80 [Abstract] ( 1745 ) PDF (410 KB) ( 4411 )

	81	DATA MANAGEMENT PLAN FOR BOREHOLE STRAIN-OBSERVATION OF PBO OF USA
		Zhang Baohong;Chen Zheng;Wu Liheng;and Li Tao
		This is a systematic introduction of the data management plan for the borehole strainobservation in the scientific project Plate Boundary Observation (PBO) of the USA, including the main contents of data bank and its naming conventions, data flow, data products, data analysis requirement and data product archiving.
		2010 Vol. 30 (Supp.2): 81-85 [Abstract] ( 1800 ) PDF (497 KB) ( 2464 )

	86	SUMMARY OF ASEISMIC ANALYSIS METHODS OF UNDERGROUND TUNNEL ENGINEERING
		Han Xiqin;and Xu Xueyong;
		On the basis of the characteristics of earthquake disaster and response, the aseismic analysis methods for domestic and overseas underground tunnel engineering and present developments are introduced, and then, advantages and disadvantages of each method are compared with each other. At last, the further research topics of aseismic analysis of underground tunnel engineering are summarized
		2010 Vol. 30 (Supp.2): 86-89 [Abstract] ( 1711 ) PDF (392 KB) ( 3045 )

	90	NECESSITY OF USE OF SOFTWARE FOR CONTROLING NETWORK ACESS IN SEISMIC NETWORK OF HUBEI PROVINCE
		Liu Ke;Temuqile;and Zhang Yimei
		Aiming of the widespread situation that some menibers of staff carry out nonworking actions including nonworking network access in work time,the Earthquake Administration of Hubei Province has taken cartion control over this kind of nonworking behavior. It mainly describs the necessity of the control over the nonworking network access by some menbers of staff.Futhermore,the use of the gateway SiteView EIM for this control and some technical discoveries in the usage of this product are pointed out as well.
		2010 Vol. 30 (Supp.2): 90-94 [Abstract] ( 2218 ) PDF (1866 KB) ( 1850 )

	95	DEVELOPMENT OF INFORMATION SYSTEM OF SEISMIC STATION BASED ON OPEN SOURCE SOFTWARES IN FUJIAN PROVINCE
		Guo Hao;Chen Caihong;Lin Rong;and Yang Yifei
		By use of free open source softwares including PHP, Apache, MapServer and MySQL, the design and development of Information System of Seismic Station in Fujian Province based on WebGIS are introduced. An open style design mode is adopted in this system. The system can response to the user’s query and retrieval, and through WebGIS technology, disply the different types of distribution map of seismic network stations and achieve basic map operation functions.
		2010 Vol. 30 (Supp.2): 95-98 [Abstract] ( 1802 ) PDF (694 KB) ( 2466 )

观测技术

	99	TEST AND COMPARISON FOR TRANSFOR FUNCTIONOF DSQ WATER TUBE TILTMETER
		Zhou Yunyao;Wu Tao;Wen Xinwei;Zhao Fenghua;Li Zhengyuan ;and Chen Zhiyao;
		Accurate transfer function is necessary to analyze the change information of earth tide for a long time, the transfer function can only be calculated with circuit principle as the accuracy of the deformation instruments is very high. The transfer function of DSQ tiltmeter was determined with step test method, while the output data between obtained were comparied with laser interferometer and water tiltmeter. Therefore, the transfer function could be more accurate.
		2010 Vol. 30 (Supp.2): 99-101 [Abstract] ( 1889 ) PDF (591 KB) ( 2651 )

	102	IMPROVEMENT IN PERFORMANCE OF DATA ACQUISITION SYSTEM OF gPhone GRAVITY METERS
		Liu Ziwei;Li Hui;Xu Zhonghua and Wang Gang
		Some improvements have been made in performance of data acquisition system of gPhone gravimeter for making the time diffrence between the data collection and data generation reduce to within 1 second, and helping to improve the accuracy of earthquake prediction in the future.
		2010 Vol. 30 (Supp.2): 102-104 [Abstract] ( 1600 ) PDF (609 KB) ( 3434 )

	105	DESIGN OF TESTING SIGNAL SOURCE BASED ON DDS FOR KIS SEISMIC INSTRUMENTATION
		Fu Hua and Chen Zhigao
		High speed microcontroller is adopted, and by using the keyboard and LCD user interface, DDS chip AD9833 is controlled to generate the sine wave meeting the frequency requirements. This design provides the signals of performance and response test for the KIS seismic instrumentation, and could be used for the onsite examination of KIS seismic instrumentation. The measurement results indicated that the scheme is of high accuracy and practical value.
		2010 Vol. 30 (Supp.2): 105-108 [Abstract] ( 1875 ) PDF (738 KB) ( 2869 )

	109	IDENTIFICATION OF TRANSFER FUNCTION OF SS-Y EXTENSOMETER WITH LEAST SQUARE METHOD
		Zhao Fenghua ;Zhou Yunyao ;Xia Jiening ;Yang Jiang ;Wu Tao ; and Li Zhengyuan
		Given the step input signal, the input and output data of the SSY extensometer were recorded, respectively. With the least square method, the transfer function of SSY extensometer can be identified. Simulation results in Matlab environment verified the effectiveness of the obtained transfer function model of SSY extensometer.
		2010 Vol. 30 (Supp.2): 109-111 [Abstract] ( 2195 ) PDF (692 KB) ( 2347 )

	112	REFORMED JUDGING METHOD OF INTERFERENCE IN GEOMAGNETIC DATA
		Deng Na ;Chen Jun ;Zeng Xianjun ;and Yang Yanfang
		Digitization for China Geomagnetic Station Network has been completed, but there are many problems in the data preprocessing. Most of them are caused by the wrong diagnosis for the interference data.On the basis of experiences of data preprocessing，a summary about interference discrimination methods is made.
		2010 Vol. 30 (Supp.2): 112-115 [Abstract] ( 1706 ) PDF (1447 KB) ( 2379 )

	116	ANALYSIS OF DATA ACQUISITION FAULTOF FHD-2B PROTON MAGNETOMETER
		Liu Qishou;Li Yuanxing;Lai Fulin;Wang Shaoran;Yang Peiqin;and Zheng Yongtong
		FHD2B proton magnetometer is a precursor instrument which was developed according to the “Tenth Five Year Plan” of China Earthquake Administration.It connects to the precursors server through the IP interface, and thus completes automatic data acquisition. The instrument’s null values in data acquisition process is analyzed and the method for passing back data from the instrument is summerized, and a remote control scheme is proposed.
		2010 Vol. 30 (Supp.2): 116-118 [Abstract] ( 1768 ) PDF (949 KB) ( 3068 )

	119	APPLICATION OF PLC IN ALARM & CALIBRATION UNIT OF KIS-SEISMIC INSTRUMENTATION
		Li Daozhong;Chen Zhigao;Wu Xiongwei;and Yang Jian
		In KISseismic instrumentation, the alarm end test unit are the operative framework of the system.There are so various nodes,including seismic alarm, fault monitoring, testing with no dump,etc. in the system that makes the control logic complex. To simplify system design and improve system reliability,the Programmable Logic Controller(PLC) is used for a implementation part of the alarm and calibration unit and achieve better application effect in this system.
		2010 Vol. 30 (Supp.2): 119-122 [Abstract] ( 1728 ) PDF (1019 KB) ( 2834 )

	123	DESIGN OF DRIVING TIME SEQUENCE CIRCUIT OF LINEAR ARRAY CCD BASED ON CPLD
		Xiang Dapeng;Yang Jiang;and Yang Jian
		The design of driving circuit is one of the crucial problems for the application of Charge Coupled Devices (CCD).This driver is developed on the basis of CPLD，and rich interface sign are also provided for users with the help of the programmable technology of CPLD．Its key features，prindple and design ideas of the driving circuit realized from CPLD are presented.
		2010 Vol. 30 (Supp.2): 123-125 [Abstract] ( 1711 ) PDF (736 KB) ( 3557 )

	126	DESIGN OF VIOLENT VIBRATION RECORD BLACK BOARD BASED ON MEMS ACCELEROMETER
		Li Daozhong;Wu Xiongwei;Chen Zhigao;and Yang Jian
		A violent vibration record black board was designed.The acceleration is detected by MEMS accelerometer and translated into digital signal by A/D module in C8051F005.Further,the vibration date is recorded and stored in SD card.The peak acceleration in a minute is displayed by LCD16032.This design has the characteristic of small size,is easy to be operated and free of maintenance.
		2010 Vol. 30 (Supp.2): 126-128 [Abstract] ( 1660 ) PDF (583 KB) ( 3277 )

	129	STUDY ON IMAGE AUTO-PROCESSING OF HIGH-PRECISION HORIZONTAL BENCHMARK STANDARD INSTALLMENT
		Shi Yuhui;and Lu Jie
		For improving accuracy and leveling speed of horizontal benchmark standard installment，An automatic upgrade reform method based on image processing was proposed. Proved by practice test, this method has the advantages of high stability，less time consumption and high accuracy over 0.3″.
		2010 Vol. 30 (Supp.2): 129-131 [Abstract] ( 1468 ) PDF (549 KB) ( 2975 )

	132	TESTING SENSITIVITY OF DEFORMATION INSTRUMENT WITH LASER INTERFEROMETER
		Zhou Yunyao;Wu Tao;Wen Xingwei;Yang Jiang;Ma Wugang;Zhao Fenghua;and Li Zhengyuan
		The sensitivity test methods for different types of crustal deformation instruments are various. In addition, all the test results are untraceable. Therefore the accuracy and credibility of the observation results are affected. The sensitivity test methods for water tube tiltmeter, vertical pendulum tiltmeter and extensometer are discussed. Laser interferometry technology is introduced to improve the test accuracy. The test results are shown to be traceable to national measurement standards.
		2010 Vol. 30 (Supp.2): 132-135 [Abstract] ( 1699 ) PDF (558 KB) ( 2489 )

	136	CALIBRATION TEST OF SS-Y EXTENSOMETER CALIBRATION DEVICE
		Wu Tao;Zhou Yunyao;and Yang Jiang;
		As SSYtype extensometer of high precision, good stability, it is widely used in the crustal deformation observation.The use of new diaphragm has greatly increased the displacement calibration repetition accuracy and constant precision of extensometer. However for such a diaphragm calibration device a comparative measurement traceability has not yet made up to date. Diaphragm we use the laser interference technique to recalibrate the calibration device through the line, the laser energy source, therefore, the diaphragm after such a calibration calibrator is accurate and reliable.
		2010 Vol. 30 (Supp.2): 136-137 [Abstract] ( 2337 ) PDF (393 KB) ( 2452 )

·

·

·

·

·

·

More...

·

·

·

·

·

·

More...

Copyright © 2013 Editorial office of jgg
Supported by: Beijing Magtech