高速公路建设与环境保护的协调发展

介绍高速公路的建设对环境所产生影响，简述我国公路环境保护设计的现状；分别从设计、施工和运营过程中提出了一系列高速公路建设过程中环境保护措施与对策：     

甘肃高速公路环保和绿化对策

文章针对甘肃省高速公路建设带来的公路污染、公路对周边环境影响和绿化问题,从甘肃省特有的地质地貌、气候特点,着重分析了甘肃高速公路建设如何从设计、施工、运营养护过程提高公路沿线环境保护和绿化工作,减少或杜绝公路环境污染、恢复路域生态环境,构建和谐交通。     

浅谈高速公路绿化景观设计和建议

高速公路景观设计是实现公路与环境和谐统一的重要手段。渴望通过案观再造与环境保护设计使公路建设对生态环境的破坏减小到最低程度。旨在对高速公路景观设计提出再认识，努力创造出一个高速、快捷、舒适、优美的公路环境。     

山区高速公路建设地质概述

一、概述由于国民经济的发展和路网完善的需求,高速公路逐步进入山区。高速公路由于其线形指标高,工程艰巨,投资巨大,对自然环境的破坏也非常严重。随着环境保护理念的日益深入人心,对于山区高速公路的勘察设计、施工运营等方面的环保要求也越来越高。山区公路环境载体主要是自然环境,也是地质环境。山区一般地形地质条件复杂,地质环境脆弱,地质灾害多发,高速公路的建设不可避免的要切坡、填沟、打洞(隧道),对地质环境造成严重破坏,处理不好还会诱发和加剧各种地质灾害,增加公路建设投资,影响工期,甚至给运营阶段带来严重的安全隐患。因此山…     

浅谈宝天高速公路环境保护的措施

伴随着我国公路的高速发展,工程建设对环境的污染,公路对周边环境影响等问题也大量凸现出来。如何解决公路设计中带来的环境问题,如何解决公路建设中对环境的影响问题是我们公路人目前面对的主要课题。生态公路的建设,要剔除先破坏后治理的观念,建立可持续发展观念,工程建设服从于环境保护。环境保护设计不过分强调公路构筑物与自然的区别,应使公路工程与自然环境融为一体,使公路与周围环境形成新的人文景观,提供良好的视觉环境。     

关于对干线公路穿村过镇路段现状与治理情况的调查

保持干线公路完好畅通,为人们提供便捷、舒适、优美的出行道路环境,当好建设小康社会的先行官,是公路管理机构应尽的职责。然而随着市场经济的发展,"大路大富、小路小富、无路不富、高速公路快富"的观念已深入人心。许多人在"要想富、紧靠路"思想的支配下,沿路开厂、设店,许多沿线乡镇政府在进行村镇规划时也是沿路规划开     

略论湖南高速公路建设与环境保护

近年来,湖南高速公路建设取得了突飞猛进的发展,随着2009年常吉、韶山2条高速公路的建成通车,湖南高速公路通车里程已突破2000公里大关。基于经济发展与环境保护的天然矛盾,快速推进的湖南高速公路建设给环境带来了诸多不利影响,例如破环了沿线的景观环境、加剧了水土流失、加重了大气、噪声以及水源、水质的污染等等。本文在阐述湖南高速公路建设对环境对造成损害的同时,分别从具体操作层面和管理层面提出了如何在湖南的高速公路建设中保护环境的对策。     

高速公路与环境保护和谐发展浅析

高速公路是交通基础设施的重要组成部分,是社会经济发展的物质基础,没有这种物质基础就会增加社会经济的运行成本,甚至制约社会经济的发展。在高速公路规划设计、建设施工各个环节都应该重视生态环境保护,通过科学合理的生态环境影响评价体系来指导和规范建设。为了推动社会经济快速发展,高速公路建设将在较长时期内持续,伴随高速公路建设全过程的环境保护是依法治国,实施和谐发展战略的重要研究课题之一。根据各地的自然环境、生态环境、社会经济环境特点,因地制宜地解决好公路建设的环境保护问题,具有重要意义。     

浅谈蚌明高速公路水环境保护设计

公路是带状结构物,有一定建设规模的公路将穿越一个或多个地域,对各地域的水环境均有一定的影响.公路建设应首先考虑公路水环境保护设计,使得公路建设对水环境的影响隆低到最低.该文以已建成的蚌明高速公路项目水环境保护设计为例,简要阐述了高速公路水环境保护的设计方法与保护措施,可为今后类似地区公路项目的水环境保护设计提供参考.     

广东渝湛高速公路生态恢复与景观设计

随着公路建设的飞速发展，植被破坏与环境污染日趋严重，环境保护、景观协调已越来越引起人们的重视。因地制宜选择合理、经济、美观的生态恢复措施，确保高速公路生态效果和行车安全，从而达到改善高速公路行车条件、有效防止水土流失、美化公路环境的目的。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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