Quaternary subsidence zones in Albania: some case studies

The Neotectonic evolution of Albania, from the Middle Pleistocene to the present day, is characterised by a general uplift that began after the Pliocene. Subsidence took place locally and led to the formation of graben-shaped Quaternary lakes and plains. During this period, graben lakes were formed at Shkodra, Ohrid, Prespa and Butrinti, whereas at Korça, Elbasani, Zadrima, Tirana, Myzeqe, etc., graben and graben-like plains were created. The Quaternary subsidence structures can be classified into two groups: graben structures created by local or regional extension and graben-like structures formed under a compressional regime. Some case studies are presented to illustrate the formation of these structures and their main engineering geological and hydrogeological characteristics.     

可持续发展的角度分析唐山世园会的规划设计

唐山世园会在整体规划、景观设计、建筑设计、后续发展等很多方面都考虑了可持续发展的设计理念。本文首先从宏观角度对园区的原状、整体规划等方面进行了分析,园区规划设计中充分考虑了对原来园区的保护性和保留性改造;其次,文章从微观角度对景观设计、建筑设计等方面进行了分析,发现园区景观及建筑设计中材料尽可能的选用了节能、环保材料,大部分服务性建筑采用尺度怡人的小体量建筑均布园中,经济又方便使用;最后,文章从园区后续发展角度,分析了园区在整体规划及园区周边环境的规划中,充分考虑了园区后续使用的可持续性发展问题。     

淮南矿区的开采沉陷及防治

作者根据淮南矿区开采引起的地表沉陷的研究与实践,对矿区内不同地质及开采条件下的地表沉陷,划分了四种盆地类型,并选用不同的数字模型表述,由机助绘图绘制了矿区三大片的地表沉陷趋势测图:对地表沉陷引起的对淮河堤坝、国家铁路、建筑物、地下管路与输电线路等的损害进行了阐述,对地表形态的破坏变化进行了分析与预测;提出了含预防措施和综合治理二个方面的地表沉陷治理对策。     

某水厂清水池上浮原因分析及其修复的实践

本文通过对某水厂清水池产生上浮的原因进行分析,提出了修复池体结构的措施,通过实践,取得了良好的效果,可供同行借鉴与探讨.     

砖砌体结构的裂缝与防治

砖砌体轻微细小裂缝影响外观和使用功能,严重的裂缝可能影响砖砌体的承载力,甚至引起倒塌。文中从地基不均匀沉降、温差变形、施工质量等方面,对其裂缝产生的原因进行了分析,结合多年工程施工实践,提出了防治砖砌体裂缝的措施。     

陆相含油气盆地地层沉积相与剥蚀厚度恢复方法研究

含油气盆地的升降运动是控制油气藏形成与分布的基础,而地层沉积相和剥蚀厚度恢复是研究盆地升降运动的关键环节。本文对陆相含油气盆地沉积相和剥蚀厚度恢复方法的特点及适用范围进行了分析。在此基础上提出在含油气盆地升降运动的研究中应重点分析沉积沉降和抬升剥蚀的相对差异,进而揭示升降差异与油气藏形成与分布的关系。     

20 000 m3贮罐充水试验沉降监测与变形分析

采用精密数字水准仪对20 000 m3贮罐基础在充水试验期间沉降变形进行监测,结合试验阶段及周边环境,对监测结果进行变形分析,为设计和施工提供准确、有效的验证和决策依据.     

Shallow cover over coal mining: a case study of subsidence at Kamptee Colliery,Nagpur, India

Shallow land cover over old underground workings at Kamptee Colliery has led to the development of ground collapse, with three crown hole subsidences recorded in a 10 year period. As the land above the workings has been developed, it was considered that for safety purposes areas with less than 15 m of competent rock should be established. The paper discusses the Multi-electrode Resistivity Imaging (RI) and Ground Penetrating Radar (GPR) undertaken over an area of 800 m × 200 m, which indicated that where a competent cover was present it was very thin.      

采矿设计中的陷落角问题

本文介绍了采矿设计中确定陷落角的各种不同方法。在此基础上提出在计算陷落角的设计步骤中应考虑破坏类型对陷落角的影响 ,进而根据破坏形式采用相应的计算方法。以板石沟铁矿上青矿区西端岩移问题为例进行了分析计算。