防震减灾网络宣传工作不容忽视--网上一则热帖带来的启发

本文结合我国互联网使用现状和网络对现实生活的影响,对网络在地震宣传方面的重要作用进行论证,提高决策人员和管理人员对地震专业网站建设的重视度。     

气候生态监测服务系统建设的现状及问题

介绍了气候生态监测服务系统建设的必要性、当前发展的状况和未来趋势.并就存在的问题、今后改进气候生态监测网络建设和加强相关部门间合作、奠定合作基础等问题进行了探讨.     

台风登陆我国川渝干旱严重——2006年7月

7月，全国平均气温为22．3℃，比常年同期偏高0．9℃，为1951年以来历史同期第3高值；全国平均降水量为116．8mm与常年同期持平。月内，强热带风暴碧利斯和台风格美相继在我国登陆，造成重大人员伤亡和经济损失。暴雨洪涝灾害频繁，安徽、湖南、广西、黑龙江等省（区）受灾较重。局地强对流天气多发，江苏、江西、河北等省受灾较重。西北东部、内蒙古中东部旱情缓解，四川、重庆、湖北等地干旱持续或发展；江南、华南北部及西南东部出现持续高温天气。     

Inversion of coseismic stress-triggered fault slips using borehole strainmeter observations

Coseismic stress-triggering is becoming a new hot spot of research. Coseismic strain steps recorded by borehole strainmeters are particularly valuable in studying coseismic stress-triggered fault slips. Based on the theory of dis location, one can invert the triggered fault slips with such data if he/she has a well understanding about the local faults. Genetic algorithm can be applied to significantly raise the efficiency of searching a best solution among all possibilities in this kind of inversion. A testifying check of the program and analyses of each parameter＇s influence may further enhance the reliability of inversion results. Taking complexity of geological structure into account, the inversion results should be regarded as the predominant property or a comprehensive effect of triggered local faults＇ activities. As an attempt, we inverted the assumingly active faults＇ slips triggered by the Ms=8.1 Kunlun Mountain earthquake over Beijing area.     

Investigation on the Site of the 2003 South Bomi (Tibet) M_S5.7 Earthquake

INTRODUCTIONAs registered by the seismic network of the China Earthquake Administration and the regionalnetworkof Xizang(Tibet) Autonomous Region,anMS5·7 earthquaketook place between Bomi countyand Medog county, Tibet on August 18 , 2003·The China Earthquake Administration sent anearthquake site investigation team to the stricken region immediately after the earthquake . Theinvestigationteamconsistedjointly of personnel fromthe Earthquake Administration of Xizang (Tibet)Autonomo…     

A Preliminary Study of Palaeoearthquakes on the Maqu Fault of East Kunlun Fault Zone

INTRODUCTIONThe east Kunlun active fault is an important NWWtrending boundary fault on the northeasternmargin of the Qinghai-Xizang(Tibet)Plateau.The fault extends fromthe northside of the Qiangtangmassif in the west,runs eastward through the Kusai Lake,Dongdatan,Xidatan,Tuosuo Lake andMaqu to the north of Zoig毢(Van Der Woerd,et al.,2002;Ma Yinsheng,et al.,2005;Seismological Bureau of Qinghai Province,et al.,1999;Li Chunfeng,et al.2004).The intenseleft-lateral strike-slip move…     

动量BP算法在路基沉降预测中的应用

提出一种采用动量BP算法来预测路基沉降的方法,结合具体的工程实例,构建了预测路基沉降的具体BP神经网络模型。预测结果表明,该模型有较高的预测精度,可作为预测路基沉降的一种新方法。     

高密度电阻率法在风化岩地基勘察中的应用

由于风化岩场地具有风化不均匀之特点,《岩土工程勘察规范》(GB 50021—2001)对这类场地的岩土工程勘察的布孔间距具有严格规定,使得这类场地的勘察工作量往往很大。分析了高密度电阻率法在这类场地中使用的可行性和必要性,结合阿尔及利亚某炼油厂岩土工程勘察的实例,剖析了高密度电阻率法对大面积风化岩地基勘察方案设计的优化。     

Carbonate Diagenesis Controlled by Glacioeustatic Sea-Level Changes： A Case Study from the Carboniferous-Permian Boundary Section at Xikou, China

The diagenesis of modern and ancient carbonatesedi ments has been widely studied and systematicallyreviewed since the 1960s (e .g. Moore ,2001 ,1989 ;Wang et al ., 1994 , 1991 ; McIlreath and Morrow,1990 ; Tucker and Bathurst , 1990 ; Schneidermannand Harris , 1985 ; Longman, 1980 ; Bathurst ,1975) . With the development of sequence stratigra-phy and its more widespread application, discussionabout the relationship between diagenesis and se-quence stratigraphy/sea-level changes ,as well as…     

Sulfate Attack on Concrete in an Inland Salt Lake Environment

INTRODUCTIONSulfate attack is one of the reasons for concretestructures deteriorating earlier than usual,thusshowing poor durability.The SO42-from the sur-rounding environment such as ocean,saline,groundwater,and even the concrete itself,reacts with thehydration products of cement,whichleads to the de-terioration of the concrete(Li et al.,2000;Kang,1995;Neville,1983;Samarai,1976).The deteriora-tionincludes three processes:the external swelling,cracking,peeling,and disjointing caused by …