什么是连续不确定性数据?请用通俗易懂的语言描述一下,谢谢!

2024-11-30 00:56:56
推荐回答(1个)
回答1:

桥背,在桥梁结构中没有明确的定义,但在桥梁的描述中常常用到,大多在指拱桥拱起的最高部位,下面摘录几段文字加深你的理解。

小鲤鱼跳龙门:
有一座小石桥,桥背是拱起来的,是一座古老的石桥。桥边的石缝里长满了野草,还有一棵小槐树。
领头的小鲤鱼摆好跳跃的姿势,他说:“你们瞧着,我跳啦!”他身子往上一纵,只听到“啪”的一声响,又听到“咚”的一声,这条领头的小鲤鱼真的从桥这边跳到桥那边去啦。

圆明园:
前面高耸的断桥便是整个圆明园唯一的遗桥了。远望如一个乱石堆,近看则桥的格局宛在。桥背很高,桥面只剩了一小半,不过桥下水流如线,过水早不必登桥了。

赵洲桥:
安济桥——俗呼大石桥——在赵县南门外五里洨水上,一道雄伟的单孔弧券,横跨在河之两岸,在券之两端,各发两小券。桥之北端,有很长的甬道,由较低的北岸村中渐达桥上。南岸的高度比桥背低不多,不用甬道,而在桥头建立关帝阁一座;是砖砌的高台,下通门洞,凡是由桥上经过的行旅,都得由这门洞通行。桥面分为三股道路,正中走车,两旁行人。关帝阁前树立一对旗杆,好像是区划出大石桥最南头的标识。

语文考试题目:
石拱桥自身的结构就很美:圆的桥洞,方的石块,弧的桥背,方,圆之间相处和谐,得体,力学的规律往往与美感的规律相拍合。不过我之爱桥,并非着重于将桥作为大件工艺品来欣赏,也并非着眼于自李春的赵州桥以来的桥梁的发展,而是缘于桥在不同环境中的多种多样的形式作用。

现代的桥梁中,也有指桥台的后背面。下面桥梁专业的考试题中的桥背就是桥台的后背面。

23,[背景材料]
某高速公路,路基宽度为24m,路面为沥青砼,设计行车时速为80km/小时.某合同段k8 320m为5×30连续箱梁,桥台均为重力式桥台.1号桥台位于水田区域,路基填高6.5m,地质情况为:表层3.5m厚淤泥质粘土,其下为泥岩.现场施工人员结合设计提出1#桥台主要施工方案如下:
1,桥头路基按设计采取挖排水沟排水固结,桥头路基部分先填筑50cm厚填石路基,隔断地下水,其上利用泥岩挖方分层填筑,厚度,粒径,含水量,压实度等按规范要求严格控制.
2,两月后桥台施工完成, 桥背回填与路基填筑同步进行.对台背部分,设计要求全部采用透水性材料砂砾石填筑,并在顶面作防水层,避免地表水下渗.分层填筑,厚度,粒径,含水量,压实度等按规范要求严格控制.
[问题]:
1,试指出1# 桥台及引道施工方案中在防治桥头跳车病害方面的不当之处.
技术管理的角度上,对设计提出优化设计方案,来防治桥头跳车病害.
[参考答案]:
1,该桥台引道施工中对桥头地基处理重视不够,应当采取措施改善桥头地基性能,提高地基承载力,减少差异沉降.
2,对桥头地基可提出换填砂砾或片石等透水材料,另外,可提出增设桥台搭板方案.

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