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无滤层围井是用土袋排垒围井,井内不铺填反滤料,靠()而制止涌水带沙。

发布日期:2021-03-22

无滤层围井是用土袋排垒围井,井内不铺填反滤料,靠()而制止涌水带沙。
A

排水

B

蓄水平压

C

导渗

D

反滤

试题解析

围井

围井是堤防漏洞出口处用土袋筑成的带有反滤设备的圆形小埝。因在背水面,亦称“背河(反滤)围井”。漏入围井内的水使井内水位升高。在其顶部放引水管,使井内维持一定水位,以降低渗流速度,不致扩大漏洞。围井内水位不宜过高,以防堤坡泡松,发生新的脱坡危险。是堵塞堤防漏洞的一种临时抢护措施,汛后尚需重新翻修,以彻底消除漏洞隐患。

中文名
围井
组成
单元围板、拐角面板
应用
自升式钻进平台
外文名
trunk
意义
抢护堤防管涌的有效措施之一
一级学科
船舶工程

是用

是用,读音shì yòng,汉语词语,意思为因此。

中文名
是用
注音
ㄕㄧˋ ㄩㄥˋ
拼音
shì yòng
释义
因此

滤料

滤料是水处理过滤材料的总称,主要用于生活污水、工业污水、纯水、饮用水的过滤。

中文名
滤料
用途
水处理
外文名
filter material

标签: 制止 水带

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此试题出现在

水利工程行业技能考试

河道修防与防冶工

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