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通过分析硅烷、硅氧烷的分子结构,选择合适的助剂,将无机化合物与硅烷、硅氧烷组成稳定的体系,研究其在混凝土及水泥砂浆中的性能与抗渗机理. 相似文献
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项目定位 位于浙江省金华市的浦江·金色海岸,主要入住者为浦江、义乌等地的成功人士.我们在结合这两地的人文、生活习惯的基础上,引入浪漫、休闲的热带风情,并用现代、简洁的手法加以表达,使其成为一个兼具功能性、艺术性与生态性的居住小区,揉入巴厘岛及现代古典主义的风格特征,从而设计出精致细腻和完美实用的高品质楼盘. 相似文献
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阐述了GPS的含义,对GAMIT进行了介绍,结合实例,对GAMIT在红旗5.0操作系统上的安装和使用进行了说明,以提高人们对GAMIT处理软件的认识,推广GAMIT软件的应用,可为将要使用GAMIT软件的用户提供参考. 相似文献
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Prevention and treatment technologies of railway tunnel water inrush and mud gushing in China 总被引:2,自引:0,他引:2
Water inrush and mud gushing are one of the biggest hazards in tunnel construction. Unfavorable geological sections can be observed in almost all railway tunnels under construction or to be constructed, and vary in extent. Furthermore, due to the different heights of mountains and the lengths of tunnels, the locations of the unfavorable geological sections cannot be fully determined before construction, which increases the risk of water inrush and mud gushing. Based on numerous cases of water inrush and mud gushing in railway tunnels, the paper tries to classify water inrush and mud gushing in railway tunnels in view of the conditions of the surrounding rocks and meteorological factors associated with tunnel excavation. In addition, the causes of water inrush and mud gushing in combination of macroand micromechanisms are summarized, and site-specifc treatment method is put forward. The treatment methods include choosing a method of advance geological forecast according to risk degrees of different sections in the tunnel, determining the items of predictions, and choosing the appropriate methods, i.e. draining-oriented method, blocking-oriented method or draining-and-blocking method. The treatment technologies of railway water inrush and mud gushing are also summarized, including energy relief and pressure relief technology, advance grouting technology, and advance jet grouting technology associated with their key technical features and applicable conditions. The results in terms of treatment methods can provide reference to the prevention and treatment of tunnel water inrush and mud gushing. 相似文献
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拉斯维加斯堪称人类城市建筑的奇迹,在原本一望无际的沙漠上,居然会建成这样一座现代化的城市,这是一个改造沙漠的奇迹.城市特有的"赌城"特色加上城建"奇迹"的光环,拉斯维加斯因此成为世人旅游观光的胜地. 相似文献
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一部建筑史是一部理性与浪漫交织的历史,有时理性的凸显掩盖了浪漫,有时则是浪漫掩盖了理性,二者存在着相互制约的规律.把视野延伸,可以发现建筑在理性与浪漫的关系上经历了由"混沌到有序再到混沌"这样一个过程. 相似文献
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