共查询到20条相似文献，搜索用时 109 毫秒
1.
2.
核工业北京地质研究院物化探研究中心多年从事浅层地震方法研究、地震数据采集系统开发,并提供工程地震检测技术服务。我们研制开发的浅层地震硬软件产品已被国内许多系统(水电、有色、建材、铁道、公路、地矿、地震局和核工业等)的单位采用,一些服务项目深受用户好评,并产生了可观的社会效益。 相似文献
3.
浅层地震勘探在岩溶调查中的应用效果 总被引：10，自引：1，他引：10
浅层地震勘探在岩溶调查中的应用效果刘保全（国家地震局地球物理勘探中心，郑州４５０００３）近年来，浅层地震勘探等工程物探方法在工程勘察领域得到了广泛的应用。我单位通过在一些工程项目中采用浅层地震勘探进行工程地质勘察．取得了一些资料和经验，并将该方法应用... 相似文献
4.
浅层地震勘探法在珊瑚礁勘察中的应用研究 总被引：2，自引：0，他引：2
将高分辨浅层地震勘探法应用于我国南海珊瑚礁工程地质勘察在国内尚属首次。本文作者利用观测法和多次覆盖技术,从现场获取合理、清晰的浅层数据,结合地质钻探资料,综合分析了珊瑚礁梭散沉积物层厚、基岩面起伏形态及大面积的连续地质剖面,取得良好的结果,充分显示了浅层地震法高效、低价、连续性强等优点。 相似文献
5.
6.
应用浅层地震技术勘查岩溶及溶洞 总被引：2，自引：0，他引：2
本文结合工程勘查实例，介绍了浅层地震技术（高密度地震映象法和横波法）在解释工程勘查中探岩溶，溶洞问题的应用，分析岩溶，溶洞等在浅层地震勘探中表现的特征和规律，并探讨其应用效果。 相似文献
7.
8.
9.
土体剪切波速度的测试是土动力学和地震工程研究中的一项重要内容,也是近年来发展起来的浅层地震勘和对已加固地基进行科学评价的一项新技术。本文阐述了稳态瑞利波和和瞬态波法及剪切波速度反演方法的最新近展,重点综述了瑞利波法测度技术在岩土工程的应用现状。 相似文献
10.
Excel VBA（Visual Basic for Application）是一种面向对象程序设计语言,具有简单易用,开发功能强大等优点,可实现从“定型软件应用程序”到“软件构造模块”的转变,进而可为广大工程技术人员提供极大的方便。这里在学习Excel VBA技术的基础上,初步研究了该技术在工程地震勘探领域中的应用。通过研究水域走航式浅层反射地震勘探资料的预整理过程中存在的效率问题,采用Excel VBA技术编制了“水域走航式浅层反射地震勘探预整理系统”。目前,该系统已成功应用于福建省建筑设计研究院勘察分院的实际水域工程地震勘探项目当中,极大地提高了资料整理的效率,并降低了出错的概率。 相似文献
11.
本文概述了建国40年来我国放射性勘探的主要进展。全文包括:1. 概况;2. 天然放射性方法;3．人工放射性方法;4 ．应用简况;5．简短的结论。 相似文献
12.
液闪法测量水中氚放射性活度的淬灭效应 总被引：3，自引：2，他引：1
采用液体闪烁计数法进行放射性同位素测量时存在淬灭效应,而且几乎每个样品的淬灭程度都不同,并影响测量精度。采用液体闪烁计数法测量水中氚的放射性活度,淬灭是难以避免的,因此要进行淬灭校正,才能使不同淬灭程度的样品的测量结果具有可比性。淬灭校正的方法有很多,外标准校正法是一种比较可靠的方法。文章采用氚外标准校正法进行实验,得出淬灭校正曲线即探测效率E与淬灭参数SQP(E)的关系式为E=0.001 3SQP(E)-0.707 6,经过样品验证,该曲线是可靠的。采用外标准校正法适合于大批样品的测量。 相似文献
13.
M. Efendieva R. Babaev C. Johnson A. Feyzullayev Ch. Aliev 《Stratigraphy and Geological Correlation》2012,20(6):567-577
This work presents the results of biostratigraphic study of natural outcrops of the Maikop Group, which were first carried together with detailed radiometric studies in the Ganja oil and gas-bearing region, Western Azerbaijan. The paleontological research method included determination of the genus or species (depending on the preservation) of microfaunistic remains (foraminifera, ostracods, fish remains). The radiometric research method included measurements of the integral radioactivity in the field, the sampling, as well as laboratory radionuclide (spectral) analysis. As a result of our research, the stratigraphic control of variation in the radioactivity of rocks of the Maikop Group of the Ganja oil and gas-bearing region has been established. The radioactivity of Oligocene rocks is predominantly determined by potassium content. The radioactivity of the Miocene part of the section of the Maikop Group is determined by uranium-potassium contents. Within the Ganja oil and gas-bearing region, deposits of the Kotsakhurian regional stage, which are usually referred to ??barren?? formations or anoxic ??fish facies??, contain a significant number of species of benthic foraminiferal fauna. 相似文献
14.
15.
M. Yu. Zubkov 《Geochemistry International》2008,46(5):465-481
During the calculation of the oil and gas resources of Western Siberia, especially in the sediments of the Tyumen Formation, the presence of thin nonreservoir clay intercalations must be accounted for. However, the resolution of standard geophysical methods that are used to identify productive sequences is insufficient, and the clay intercalations are included into the total thickness of reservoir rocks, which leads to considerable errors during resource assessment. The most efficient method for the estimation of clay mineral content in sedimentary rocks is the gamma method or gamma-ray well logging, which is typically used for this purpose. However, its application requires the knowledge of correlations between the abundance of clay minerals in the sediments; the contents of K, U, and Th; and total radioactivity. To solve this problem, four grain-size fractions (sand, coarse silt, fine silt, and clay) were separated from the sediments of the Tyumen Formation at the Lovin Field and were analyzed for naturally radioactive elements (NRE), total radioactivity, and mineral composition. The tendencies found in the distribution of NRE and total radioactivity in different grain-size fractions provided a methodical basis for the determination of clay mineral contents in the productive sediments of the Tyumen Formation at the Lovin Field using gamma-spectrometric data. 相似文献
16.
《International Geology Review》2012,54(10):1268-1275
To survey the distribution of radioactivity intensity, making use of existing deep drill holes in the regions of sedimentary rocks, a large size logger was manufactured, and the method of measurement and analysis of the obtained values was studied. Experimental logging was carried out in the Joban district, but no anomaly of radioactivity intensity was recognized.--Auth. 相似文献
17.
对应用放射性直接探寻油气藏勘探试验所取得已知油藏区的资料进行了综合分析。总结了油气藏上方放射性异常的规律;探讨了放射性异常与油气藏的关系。对放射性异常的数据处理方法及应用放射性方法探寻油气藏的应用效果进行了剖析。指出:在实际应用中,氡浓度测量在勘查油气藏方面比伽玛能谱总量和伽玛能谱具有较好的应用效果。 相似文献
18.
Sermin Çam Kaynar Muslim Murat Saç F. Serap Ereeş 《Environmental Earth Sciences》2014,71(4):1581-1592
In this study, radioactivity measurements in the environment of Akhisar, Gölmarmara, Gördes and Sindirgi regions in Western Turkey were investigated in order to evaluate the implications of any excess radioactivity in the environment of geological formation. The radioactivity concentrations of 40K, 238U and 232Th radionuclides in the soil samples were measured by a NaI(Tl) gamma spectrometer system, and the radium activity concentrations in the water samples were also analyzed by an ZnS(Ag) alpha counter by the collector chamber method. The radioactivity of 40K, 238U and 232Th in soils ranged 2.80–2,347.77, 9.90–256.19 and 9.66–106.53 Bq kg?1, respectively. The activity of 226Ra in the water samples ranged from 0.03 Bq L?1 (0.89pCi/L) to 0.80 Bq L?1 (21.58pCi/L). In addition, the external terrestrial gamma dose rate in air (nGy h?1), annual effective dose rate (mSv year?1) and radium equivalent activity (Bq kg?1) were calculated and compared with international standard values. 相似文献
19.
《International Geology Review》2012,54(4):491-499
We investigated the distribution of electron hole centers produced by natural radioactivity in arkoses and their principal components (quartz-feldspar intergrowths, white and smoky quartz, and feldspars) using the electron paramagnetic resonance method. The relation between the concentrations of the Ecenters and uranium content in the rock provides information on the genetic characteristics of uranium mineralization. —Authors. 相似文献