关于判断区域构造力性质和构造力方向问题的探讨

本文通过对极限应力圆的分析,论证了剪切作用类型与构造分布规律的关系,从而为判断区域构造力性质和构造力方向提供了科学的依据.     

石油构造物理模拟实验室建设的探讨

依据地质和石油高等院校本科石油构造分析课程理论教学内容,提出了针对含油气盆地不同构造变形样式和圈闭类型形成演化的石油构造物理模拟实验室建设的内容、思路与标志性成果。     

龙门山中段中生代前陆盆地的构造演化史

依据龙门山中段中生代盆地的基底性质、沉积构造组合和构造变形，论证了川西拗陷是在印支期发育于扬子板块活动大陆边缘的弧背（前陆）盆地，前陆盆地的构造变形是经印支期构造变动和喜马拉雅期叠加改造形成的推覆构造；并讨论了龙门山中段中生代前陆盆地的构造演化历史。     

中药显微鉴定中常见的异常构造

本文对中药显微鉴定中常见的异常构造进行了分析和研究,阐述了常见异常构造的类型、发生原因和分布状况,为中药真伪鉴定提供了参考依据。     

映秀断裂带构造岩、显微构造及组构特征和形成机制讨论

依据龙门山中段映秀断裂带构造岩的宏观地质特征、显微构造及组构特征，论证了构造岩具有脆性和韧性两大类型，形成序次上为先韧性后脆性。映秀断裂带是在长期持续推覆作用下形成的一条脆、韧性道冲构造。文章还讨论了断裂带形成的构造环境和演化机制。     

云南星云湖现代沉积物的X射线照像研究

通过对云南星云湖40多个现代沉积物样品的X射线照像研究,发现块状沉积物具有丰富的层理构造和生物构造,清晰地显示了主要沉积微环境的沉积构造特征,为盆地微相分析提供了充分的依据。     

龙门山南段推覆构造与前陆盆地演化

龙门山南段推覆构造带可划分为四个亚带：陇东褶皱推覆构造带、宝兴冲断推覆构造带、中林－双石薄皮推覆构造带、前陆褶皱构造带。依据龙门山南段推覆构造样式、变形特征及前陆盆地的沉积特征,论述了龙门山南段推覆构造和前陆盆地的同步演化历史。     

江油至北川一带石炭系灰岩构造变形分析

笔者对江油、北川一带地区出露的石炭系中下统所谓瘤状灰岩进行了构造成因与变形机理分析,并通过对岩石中变形体所进行的有限应变测量及显微构造分析,阐述了该区域内的构造变形特征,初步确定了这类位于特殊部位上的构造岩的变形机制,同时为进行龙门山断褶带的构造特征研究。提供了部分资料和依据。     

阜新铁法聚煤盆地构造特征及演化

运用地质力学的观点,详细论述了阜新、铁法聚煤盆地的构造特征,依据构造体系的联合与复合及构造的分期与配套,得出盆地的构造演化及形成机制。     

长春岭地区反转构造与油气成藏关系

依据最新处理的三维地震资料,对长春岭地区的反转构造展开了精细研究.根据该区的构造特征,识别出断层式反转构造和褶皱式反转构造两种典型的正反转构造类型,并进一步研究了反转构造对油气聚集的作用.认为长春岭地区的反转构造形成了有利于油气聚集的圈闭.同时,该区内反转构造具有十分有利的成藏条件.因此,开展长春岭地区反转构造的研究,对于下一步的油气勘探具有重要的意义.     

广东某高速公路岩质边坡岩体结构面特征研究

目的研究清远—连州公路岩质边坡结构面特征及其组合关系对边坡稳定性的影响。方法采用普遍测网法实测该公路沿线边坡结构面,分析结构面的组合关系对边坡稳定性的影响;采用“赤平投影结构数据分析软件包”对结构面的参数进行统计分析;采用结构面二维网络模拟程序进行模拟。结果得到结构面产状和边坡坡面产状关系的统计图和二维网络模拟图。结论清连公路结构面组合关系对边坡稳定性影响显著,结构面参数研究对边坡稳定性评价意义重大。     

结构动力特性应用的有关问题分析

结构动力特性在工程中得到了广泛的应用。通过结构的动力特性了解复杂结构的结构性能,从而可进行结构振动控制、结构动力特性的优化设计、结构模型修正、结构故障诊断等研究工作。本文仅分析说明了结构动力特性在工程应用中应注意的几个问题。     

The New Detection and the Basic Characteristics of the Structural System of Taiwan Region of China—Using the Earth Satellite''''s Remote-sensing Images to Explain the Structural System of Taiwan Region of China

1 Forewords The Taiwan region is a special geographicunit[1]of China , its western edge is TaiwanStrait,facing Fujian Province of the mainland,and theits eastern edgeisthe Pacific Ocean,andits south edge is near the Bushi Straits ,and itsnorthern edge is connected to the Liuqiu Islands .Taiwan has its special geographical position,bingconnected with the island-chains , tightlydependent on the mainland and closed to theocean,andturns to be animportant harbor and amidway—change-station in f…     

The New Detection and the Basic Characteristics of the Structural System of Taiwan Region of China—Using the Earth Satellite’s Remote-sensing Images to Explain the Structural System of Taiwan Region of China

This text uses the regional geological investigation data and the remote sensing image data of earthsatellite remote sensing to synthetically analyze the structural system of Taiwan region of China. Authors detection-marked and assurance-marked and divided 5 kinds of structural system of the Taiwan region： （ 1 ） the wreath-shaped structural system, （2） the N-N-E oriented structural system, （3） the S-N oriented structural system, （4） the N-E oriented structural system, （5） the are-shaped structural system. Combination of the texture faces and associated method were adopted to recover and reconstruct the structural evolution sequences and the formation periods. In this paper, problems such as the development process in geology etc. are also discussed, contributing new information to research the structural field of the East Asia and its tectonic plate movements and structural actions inside the land plate .     

海洋平台立管的传感器优化布置

为了满足海洋平台结构健康监测和损伤识别的要求,提出了一种以协调模态可观测性与损伤可识别性为目标的传感器优化布置方法。首先根据结构运动方程,利用损伤导致结构响应的变化,推导了结构响应与模态、损伤灵敏度的近似解析解。其次,建立包含模态信息和损伤灵敏度信息的传感器优化数学模型。最后利用奇异值分解方法,发展了一种以信息矩阵最大和条件数最小为目标的迭代算法。海洋平台立管的数值算例表明:该方法能够为海洋平台立管的健康监测提供可行的布点方案。     

Structural Reliability Modeling Based on Imprecise Probability Theory under Insufficient Data

Traditional structural reliability analysis methods adopt precise probabilities to quantify uncertainties and they are suitable for systems with sufficient statistical data.However,the problem of insufficient data is often encountered in practical engineering.Thus,structural reliability analysis methods under insufficient data have caught more and more attentions in recent years and a lot of nonprobabilistic reliability analysis methods are put forward to deal with the problem of insufficient data.Non-probabilistic structural reliability analysis methods based on fuzzy set,Dempster-Shafer theory,interval analysis and other theories have got a lot of achievements both in theoretical and practical aspects and they have been successfully applied in structural reliability analysis of largescale complex systems with small samples and few statistical data.In addition to non-probabilistic structural reliability analysis methods,structural reliability analysis based on imprecise probability theory is a new method proposed in recent years.Study on structural reliability analysis using imprecise probability theory is still at the start stage,thus the generalization of imprecise structural reliability model is very important.In this paper,the imprecise probability was developed as an effective way to handle uncertainties,the detailed procedures of imprecise structural reliability analysis was introduced,and several specific imprecise structural reliability models which are most effective for engineering systems were given.At last,an engineering example of a cantilever beam was given to illustrate the effectiveness of the method emphasized here.By comparing with interval structural reliability analysis,the result obtained from imprecise structural reliability model is a little conservative than the one resulted from interval structural reliability analysis for imprecise structural reliability analysis model considers that the probability of each value is taken from an interval.     

东部凹陷荣兴屯构造特征及油气远景

为了揭示荣兴屯构造带各局部构造的构造特征并优选出有利区带,通过构造平面图、剖面图以及平衡剖面图,对荣兴屯构造带的基本构造格局、次级构造单元、构造层划分、构造样式以及圈闭类型等进行了深入研究,阐明了其总体具有东西倾向分带、南北走向分段和垂向构造分层的变形特点,东西分为5个构造单元,上下分为4个构造层,中—南段较北段构造样式更为复杂,圈闭类型主要是断块、断鼻等构造型圈闭,各局部构造与不同构造层油气富集程度差别大。结合烃源发育与已探明油气藏分布特点,指出烃源岩、构造格局和断裂体系是控制油气成藏的主要因素,综合分析认为荣兴屯斜坡带是进一步勘探的有利区带,并对其油气成藏条件进行了扼要分析。     

定性分析结构位移与其截面刚度的关系

围绕结构力学中增加结构各杆的截面刚度是否一定能减小结构位移的问题,运用函数单调性的判定法对平面直杆结构在荷载作用下产生的位移与其截面刚度的关系进行了定性分析,并用算例证明了分析结果.结果表明：对于平面直杆结构,增大各杆的截面刚度,有时不能减小结构位移.     

准噶尔盆地乌夏断裂带构造样式演化

在断裂、褶皱形成机制、构造样式分布平面分布和垂向分布研究的基础上,将准噶尔盆地乌夏断裂带构造样式的演化归为6种序列和3个演化阶段。构造样式演化具有明显的分区性,在断裂带东西两侧表现为相似性,中间则呈明显不同。3个演化阶段是指二叠纪前展式强烈压缩构造样式发育阶段、三叠纪—侏罗纪后展式压缩构造样式发育阶段和白垩纪—第三纪局部伸展构造样式发育阶段,而且构造样式的发育具有继承性和同沉积性。控制乌夏断裂带断层规律性发育的主要因素是区域构造环境、基底性质、应力作用方式和岩石力学性质等。