杨村煤矿矿井充水因素分析

杨村井田内含水层（组）由新生界孔隙含水层、二叠系砂岩含水层和石炭系太原组灰岩含水层组成;对矿井的主要充水因素进行了深入分析,确定了开采13-1～4-1煤层为裂隙充水矿床,开采1煤时为底板进水岩溶裂隙充水矿床;通过以上结论,可为确保杨村煤矿安全、高效开采,提供技术支撑和理论指导。     

砂体沉积微相分析与水文地质特征研究——以五阳煤矿研究区3#煤顶板为例

为了进一步探明五阳煤矿在开采过程中受到矿井突水威胁的实际情况.本文从水源、通道和强度三个因素方面综合分析五阳煤矿钻孔资料,研究岩性的粒度变化,岩石的颗粒、杂基、胶结物各个组分的构成关系,各个岩相的组合方式,以及测井曲线的形状和组合形态;结合相关古生物特征,综合相关地震相研究研究岩相的沉积构造、颜色;进一步通过野外地质调查研究,结合相关沉积相分析,参考区域地质图和区域地层简表.分析研究的结果表明,可以判定K8砂岩形成于上三角洲平原沉积,且基本不受潮汐影响;可将其细分为分流河道微相和天然堤微相,从而最终确定3#煤顶部的沉积微相分布.研究区水源主要为奥陶系灰岩含水层,石炭-二叠系砂岩裂隙-岩溶水以及第四系孔隙水.结论:五阳煤矿可采煤层3#的直接充水含水层为顶板砂岩裂隙含水层,且不同区域构造类型不一,应注意含水层之间的水力联系,重点研究断层和陷落柱的影响.     

渝东南岩溶缺水区水文特征及研究——以秀山县官庄为例

通过进行水文地质调查、物探、钻探及相关试验,综合分析研究重庆秀山县官庄岩溶地区的水文地质特征.主要含水岩组包括寒武系中上统及奥陶统下统地层,根据含水岩组富水性不同可划分为纯碳酸盐岩岩组、不纯碳酸盐岩岩组和碎屑三类;地下水赋存条件可分为松散岩类孔隙水、碳酸盐岩岩溶水、基岩裂隙水三个类型.研究区共完成8口供水井施工,成井7口,通过抽水曲线分析计算,单井涌水量高,经检测供水井地下水质量良好,加氯消毒及煮沸净化处理可作为生活饮用水源.     

新庄孜煤矿63301工作面突水水源和通道分析

根据新庄孜煤矿63301工作面的地质及水文地质条件,结合工作面突水的特征,并通过灰岩观测孔水位和水压变化的观测、水质常规检测等方法确定了工作面的突水水源和突水通道,揭示了工作面突水水源主要为C3-Ⅲ组含水层、奥灰含水层,其次为C3-Ⅰ组含水层和寒灰含水层,突水通道为工作面底板裂隙。分析结果为灰岩水的防治和A组煤的重新开采提供依据。     

桃园煤矿矿井充水条件及充水水源识别

在分析桃园煤矿地层及构造条件基础上，详细阐述了井田的含水层系统的水文地质特征，明确了松散层第四含水层、煤系地层的砂岩裂隙含水层以及底板灰岩含水层为本井田的主要充水水源，从而提出了利用SO4^2-、Cl^-关系和Piper三线图两种方法识别水源，并对断层通道、裂隙通道、岩溶通道的突水机制进行了分析。     

周边不规则大型深基坑地下水控制设计

地下水控制是大型深基坑工程中的关键技术。结合某周边不规则的深基坑工程,从基坑周边既有工程环境、施工场地条件、基坑地质和含水层特征等多方面综合考虑,对基坑场地内上层滞水和孔隙承压水分别提出控制设计思路,给出排水管路、深井降水网布置设计方法,以及降水井结构设计图,最后评价地下水控制对深基坑周围环境的影响。对于类似建筑,具有一定的参考价值。     

福建沿海地区含水岩组水文地质条件分析

在福建沿海地区1：20万水文地质与工程地质调查报告的基础上，分析和总结了该区地下水中松散岩类孔隙水和岩浆岩类裂隙水等两个含水岩石组合的富水程度等水文地质条件，认为松散岩类孔隙水主要分布于冲积平原，富水程度较高，水质较差，岩浆岩类裂隙水主要分布于丘陵台地，水质好，但富水程度弱，为本区缺水地区。     

周边不规则大型深基坑地下水控制设计

地下水控制是大型深基坑工程中的关键技术。结合某周边不规则的深基坑工程，从基坑周边既有工程环境、施工场地条件、基坑地质和含水层特征等多方面综合考虑，对基坑场地内上层滞水和孔隙承压水分别提出控制设计思路，给出排水管路、深井降水网布置设计方法，以及降水井结构设计图，最后评价地下水控制对深基坑周围环境的影响。对于类似建筑，具有一定的参考价值。     

年平均降雨入渗补给对滨海含水层系统水位波动影响的解析研究

降雨入渗补给是影响滨海含水层系统水位波动的主要因素之一.本文建立了一个较为一般的滨海含水层系统模型.模型中不仅考虑了年平均降雨入渗补给对含水层系统水位波动的影响,同时也考虑了潜水含水层中地下水的波动及其通过半透层对承压含水层的越流补给.利用解析法分析了降雨入渗补给对潜水水位、承压水头和地下水海底排泄量的影响.     

裂隙岩体渗流应力耦合机制研究

天然岩体中存在着大量的孔隙和裂隙。这些缺陷不但大大改变了岩体的力学性质（变形模量及强度参数降低、岩体呈各向异性等）,也严重影响了岩体的渗透特性。裂隙岩体的渗流场受应力环境的影响很大,而渗流场的改变反过来又对应力场产生影响．这种相互影响称之为渗流应力耦合作用。在裂隙岩体中进行隧道开挖,由于开挖卸荷一方面使地下水排泄有了新的通道,加速了水循环,破坏了原有的补给一运移一排泄系统的平衡;另一方面,造成围岩应力重新分布,部分结构面由于增压闭合,导致部分岩体卸荷松弛或产生剪切滑移,人为破坏了原有的地下水渗流条件,使得隧洞自身成为地下水以不同形式（渗出、滴流、股流及大范围突水等）向外排泄的地下廊道,形成突水灾害。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.