单选题
某路基压实施工时，产生“弹簧”现象，宜采用的处理措施是（ ）。
发布日期：2020-04-11
增大压实机具功率
适量洒水
掺生石灰粉翻拌后压实
降低压路机碾压速度
试题解析
压实
压实（compaction），在一些工程建设中．如路基、堤坝的填筑和建筑场地的回填等。土体常作为建筑材料。±体由于经过挖掘、搬运和填筑．原有的结构和状态发生改变，如不经过人工压实．孔隙比往往较大，而且压缩性较高、抗剪强度低，难以满足工程的需要。为了减少填土的工后沉降量，提高强度，工程中必须按照一定的标准，通过碾压、夯实或振动等方法对其进行压实。土的压实效果除了和压实方法有关外，还和土的种类、级配、压实功能和含水率等密切相关。
- 中文名
- 压实
- 别名
- 压缩
- 应用
- 建筑
- 外文名
- compaction
- 目的
- 提高其密实度的作业
- 举例
- 路基压实
路基
路基是轨道或者路面的基础，是经过开挖或填筑而形成的土工构筑物。路基的主要作用是为轨道或者路面铺设及列车或行车运营提供必要条件，并承受轨道及机车车辆或者路面及交通荷载的静荷载和动荷载，同时将荷载向地基深处传递与扩散。在纵断面上，路基必须保证线路需要的高程;在平面上，路基与桥梁、隧道连接组成完整贯通的线路。在土木工程中，路基在施工数量、占地面积及投资方面都占有重要地位。
- 中文名
- 路基
- 定义
- 用土或石料修筑而成的线形结构物
- 分类
- 土路基、石路基、土石路基
- 外文名
- subgrade
- 形式
- 路堤
- 适用范围
- 建筑工程
现象
现象是一个汉语词语，读音为xiàn xiàng。能被人感觉到的一切情况。现象是人能够看到、听到、闻到、触摸到的。按照是否有自然属性来分，现象可分为自然现象和社会现象。
- 中文名
- 现象
- 词目
- 现象
- 语种
- 中文
- 出处
- 《西游记》
- 外文名
- phenomenon
- 拼音
- xiàn xiàng
- 相对概念
- 本质
题王网让考试变得更简单
扫码关注题王，更多免费功能准备上线！
此试题出现在
CMS专题
CMS专题
其他考试
Directions:In this section, there is one passage followed by a summary. Read the passage carefully and complete the summary below by choosing no more than three words from the passage. Remember to write the answers on the Answer Sheet. Questions 1 - 5 are based on the following passage.The United Kingdom Britain (or Great Britain) is an island that lies off the north-west coast of Europe. The nearest country is France, which is 20 miles away and from which Britain is separated by the English Channel. The island is surrounded by the Atlantic Ocean to the west, and the North Sea to the east. It comprises the mainlands of England, Wales and Scotland, that is, three countries. Scotland is in the north, while Wales is in the west. Ireland, which is also an island, lies off the west coast of Britain. It consists of Northern Ireland and the Irish Republic. Britain together with Northern Ireland constitute the United Kingdom (UK). Thus, the United Kingdom is composed of four countries, the largest of which is England. The capital city is London, which is situated in south-east England. The UK has a total area of about 244,100 square kilometres (94,248 square miles). About 70% of the land area is devoted to agriculture, about 7% is wasteland, moorland and mountains, about 13% is devoted to urban development, and 10% is forest and woodland. The northern and western regions of Britain, that is Scotland and Wales, are mainly mountainous and hilly. Parts of the north-west and centre of England also consist of mountains and hills. Britain has a generally mild and temperate climate. It is, however, subject to frequent changes. It has an average annual rainfall of about 120 centimetres (47 inches). In 1998 the population of the United Kingdom was nearly 59 million. The density of population was approximately 240 people per square kilometre. However, in England, where 83% of the population live, the density was much higher, about 363 per square kilometre. In the UK, English is the first language of the vast majority of people. However, in western Wales, Welsh is the first language for many of the people. In Scotland only a small number of people speak Gaelic. In Britain about 66% of the population say that they are Christian, while fewer than 5% say that they belong to other religions. Summary: Britain is an island that 1 the Atlantic Ocean and the North Sea. It comprises the mainlands of England, Wales and Scotland. Ireland 2 the west coast of Britain. I 3 Northern Ireland and the Irish Republic. The United Kingdom consists of Britain together with Northern Ireland. The capital city is London which 4 outh-east England.In 1998 the population of the UK was nearly 59 million. The density of population was 240 people per square kilometre. In the UK English is the first language of most people. In western Wales, Welsh 5 many of the people, but few people in Scotland speak Gaelic.
《国家行政机关公文处理办法》规定：（）向上级机关汇报工作，反映情况，答复上级机关的询问。
防风拉线固定环距定位器端头水平距离为（）mm，允许误差+50～－l00mm。面向下锚侧安装，防风拉线与水平方向呈（）°。
简述政府预算平衡情况的审计内容
用环氧树脂浇注或缠绕作包封的干式变压器即称为（）。
（）用于授权修改税控收款机的时钟。
根据迁移发生的方式，迁移又可分为（）。
交流电通过整流电路后，得到的输出电压为（）
泵反转的危害？
李嘉图比较优势理论的核心是（）
暂无相关推荐~