株下竖向植筋带联合植被护坡的水力特性土柱试验

为探究竖向植筋带联合植株的护坡水力特性,设计开展了一维土柱试验,在干湿循环条件下,观测了坡土表面裂隙的发育情况,监测了坡土内部体积含水率和吸力等水力特性的变化规律。试验发现:在干燥过程中,蒸发蒸腾作用会促进土体表面裂隙的发育,裂隙的深度与宽度随干湿循环次数的增加而增加,联合植筋带后蒸发蒸腾引起的吸力增量大于仅由植物边坡蒸发蒸腾产生的吸力增量;在降雨作用下,植筋带也会成为明显的优势流入渗通道加速雨水入渗,致使土体产生更多的吸力损失值。因此,必须设法把植筋带顶部及其周围的土体压实,减少坡土开裂,避免在降雨工况下顺着植筋带的优势流入渗,充分发挥竖向植筋带作为延长根的加筋作用。     

Analysis of underground fires in Polish hard coal mines

In the period of the first twenty years after World War II the number of fires in Polish hard coal mines reached annually the value of several thousands of cases. About 80% of fires constituted spontaneous fires. Investigations into the development of new methods of fire hazard prediction and implementation of new methods and means of fire prevention as well as the introduction of prohibition concerning the use of products manufactured of combustible organic materials in underground mine workings re-duced considerably the hazard of underground fire rise. The worked out at the Central Mining Institute (GIG) new method of un-derground fire prediction allows the correct selection of fire prevention means. The introduction into common use of fire-resistant conveyor belts, the main factor giving rise to spontaneous fires, and methods of assessment of their fire resistance eliminated prac-tically the fire hazard. These activities contributed in an efficient way to the reduction of the number of underground fires to a sa-tisfactory level.     

高压喷射灌浆技术及应用

简要介绍了高压喷射灌浆技术的原理,结合山西省万家寨引黄工程大梁水库高喷灌浆施工实例,阐述了高压喷射灌浆技术在实际运用中的施工工艺及其参数的确定,并对其质量检测控制及防渗效果进行了分析,以供类似工程参考。     

淄博市三院病房楼地下防水施工

某地下室水工程采用柔性防水（聚氨酯防水涂膜和三元丁防水卷材）与刚性防水相结合，多建设防，同时防排结合，精心施工，严把材料，施工质量关，保证了工程质量。     

Green belts and urban containment: the Merseyside experience

ABSTRACT

The green belt, without question the most well-known and influential legacy of town and country planning in the UK, continues to attract interest from a wide range of interested parties – from those eager to maintain the protection it offers to the countryside, to others more concerned at the negative impacts it is argued to have on housing supply and consequently prices. In this paper we explore how the arguments for a green belt around a particular city in the UK – Liverpool – were built up over the middle years of the twentieth century, in particular through three important (sub-)regional plans. Analysis of those plans is situated within national policy and nationwide rhetoric to illustrate how perfectly justifiable arguments about the need to limit urban sprawl “baked in” resentment and opposition to much-needed housing growth. A situation which, as the final section of the paper briefly reflects upon, not only contributed to the wide-scale construction of high-rise flats in the city from the 1950s onwards, but continues to resonate today through the objections lodged against attempts to enhance the spatial footprint of the city through development on the green belt.     

浅谈大型构筑物的防渗漏施工

大型构筑物的防渗漏是一个重要的技术问题。该文以台州市椒江污水处理厂曝气池等构筑物为例,从避免池壁配筋间距过大,施工缝正确设置、留置,避免冷缝,伸缩缝的橡胶止水带正确安装,模板工程和混凝土运输道支撑架体的正确施工,防止防水套管外围跑浆,变形缝内外密封胶嵌填,混凝土浇注等8个方面的质量控制,作了具体介绍。该工程已评为2004年度台州市优质工程市政金奖。     

茅口灰岩水对煤矿开采威胁预测研究

矿井水害一直是制约煤矿生产的重大灾害之一,随着煤矿开采深度增加,矿井突水危险性也大大增强。通过分析研究得出茅口灰岩赋存状况及岩溶发育规律;以黔北某矿为例,运用"下三带"理论预测分析开采龙潭煤组底层煤的突水危险性;并提出具有针对性的防治措施,为预防底板茅口灰岩岩溶水灾害提供科学依据。     

中国中西部前陆冲断带构造变形与油气成藏模式

为了明确中国中西部前陆冲断带的构造变形特征和油气成藏模式,在中、新生代区域构造背景分析的基础上,根据空间构造格局的叠加和变异以及时间上构造发展的连续和叠加特征,将中西部前陆冲断带的构造变形分为叠加型、改造型和原型3类.构造变形制约着油气成藏环境的演变和油气的聚集与分布,通过对库车、四川盆地西缘和柴达木盆地北缘等前陆冲断带的典型油气藏成藏过程分析,认为中西部前陆冲断带具有3种成藏模式,即叠加型冲断带的多期成藏以晚期为主模式、改造型冲断带的早期成藏和晚期调整模式、原型冲断带的晚期原生聚集及改造次生成藏模式.     

矿用化学注浆材料物理力学性能研究及其应用

 化学注浆材料物理力学性质及应用     

我国涂附磨具现状及其在木材加工中的应用

介绍我国涂附磨具行业的发展概况和存在的问题;阐述了在木材加工中应如何正确选用涂附磨具。