当前位置: 北京翻译公司主页 > 分类案例 > 工程机械 >

翻译咨询法律翻译

企业热线:400-692-6992
企业 QQ:4006926992
座 机:85969292
手 机:15811537655
地 址:北京市朝阳区朝阳北路199号摩码大厦809室
中国信用企业
中国译协会员

隧洞回填灌浆(中译英)
来源:北京新语丝翻译公司  编辑:xinyusi  发布日期:2013-05-17 17:02

    ⑴工艺流程

    从预埋管中钻孔→冲洗→灌浆→屏浆结束→封孔。

    ⑵施工方法

    回填灌浆施工要求在洞室衬砌混凝土达到70%设计强度后进行,钻孔采用手风钻从Ф50mm预埋管中钻孔的方法。孔位位于拱顶,钻孔孔径不小于38mm,孔深进入岩石10cm,间距5.0m,并用风水联合冲洗钻孔至合格。

    回填灌浆区段划分与衬砌区段划分一致,也可以由几个衬砌区段组成。同一灌浆区段内分两序作业, II序孔在I序孔全部结束并待凝7天后开始回填。灌注的原则:由较低的一端开始,向较高的一端推进。回填灌浆采用纯压式灌浆,为达到较好的回填质量,应设置回填灌浆排气孔,排气孔可利用附近的灌浆孔。回填灌浆I序孔灌注水泥浆液水灰比为O.6:1,II序孔灌注1:1 和0.6:1两个比级的水泥浆液,空隙大的部位灌注水泥砂浆,掺砂量不大于水泥重量的200%。回填灌浆压力采用O.3~0.5MPa,在规定的压力下,灌浆孔停止吸浆,延续灌注5min即可结束。

    质量检查及封孔:回填灌浆质量检查在该部位灌浆结束7天后进行,采用钻孔注浆法,即向孔内注入水灰比2:1的浆液,在规定的压力下,初始10min内注入量不超过10L,认为合格。检查孔的数量为灌浆孔总数的5%。回填灌浆和质量检查结束后,使用水泥砂浆将钻孔封填密实,孔口压抹平整。

    Tunnel hole backfill grouting

    ⑴ Technical procedure

    Drill hole from the pre-buried pipe→wash→grouting→screen slurry finished→seal the hole。

    ⑵ Constructive method

    The backfill grouting construction should be performed after the hole-room liner build concrete has reached to 70% of the designed intensity. The hole-drill adopts the method that use a hand-wind-drill to work on the Ф50mm thickness pre-buried pipe. The position of the hole should be in the top of the vault, and the diameter of the hole should be no less than 38mm. The depth of the hole should be 10cm into rock, and the space-between is 5.0m, also, use the united wind and water to wash the hole till it reaches to the fixed grade.

    The partition of the backfill grouting-district should be consistent to that of the liner-building segment, it can also be made up of several liner-building sections. In the same grouting section there are two sequences to perform work. The II sequential-hole begins to fill back when I sequential-hole has finished all its work and its coagulation has been waited for seven days. The principle for grouting is: begin from the lower side and advance to the higher side. Backfill grouting uses the pure-pressure grouting. In order to obtain better quality of backfill, the backfill grouting gas-drive hole should be set up, this can utilize the nearby grouting hole. For the backfill grouting I sequential-hole, the poured cement slurry water-to-ash’s ratio is 0.6:1. The II sequential-hole should be poured the two rate-grades of 1:1 and 0.6:1. Places with big inter-space should be filled with cement sand slurry, and the mixed sand volume should be no less than 200% of the weight of cement. Pressure of backfill grouting should be 0.3~0.5MPa. Under prescribed pressure, the grouting hole stops inhaling the slurry, and a 5min’s extending grouting can finish the work.

    Quality examination and hole-seal: the backfill grouting quality examination should be performed 7 days after the end of grouting at the respective point. The hole-drill slurry-pour method is adopted here. That is, pour slurry liquid whose water-to-ash ratio is 2:1 into the hole, during the foundation 10 min, while the poured volume is less than 10L under the fixed pressure, it can be regarded as having passed the examination. The number of examined holes should account for 5% of the total grouting holes. After the backfill grouting and the quality examination have been finished, use cement sand slurry to fill and seal the drill-hole, press the orifice to flat.

    你可能感兴趣的文章:
   
    灌浆实验案例(中译英)  http://www.xysfanyi.com/flal/gcjx/20130517171.html

上一篇:灌浆实验案例(中译英)

下一篇:主要建筑材料翻译(中译英)

新语丝优势