1)well pipe and well point drawdown管井井点降水
1.Designing and construction of well pipe and well point drawdown;管井井点降水的设计与施工
英文短句/例句
1.In the paper, the design of dewatering and drainage by pipe well point method for deep foundation pit excavation of a metro station in Shenzhen city is presented.主要介绍了深圳地铁×车站深基坑开挖所采用的管井井点降水方案的设计情况。
2.Comprehensive Analysis on the Technical Economy of Precipitation of Light Well Point and Deep Well Point;轻型井井点降水与深井井点降水之综合分析
3.Big Mouth Well Point Precipitation Construction Method城市深基坑大口井井点降水施工工法
4.Study on Water Level Subsidence Due to Interferential Well Group Dewatering in Weak Aquifer弱含水层干扰井群人工井点降水水位降深研究
5.Application of Simple Deep Well Point Dewatering in Construction of Feiya Water Intake Project简易深井井点降水在飞亚取水口工程中的应用
6.Application of precipitation by deep well and well paint to Zhanghu Lake深井结合井点降水在漳湖闸工程中的应用
7.Application of Deep Well Pump Well-points Dewatering in Treatment of Defective Pile Foundation深井泵井点降水在处理缺陷桩基中的应用
8.On application of deep well point dewatering in high-rising buildings深井井点降水在高层建筑工程中的应用
9.Well precipitation method s application in the long-distance pipeline high level gravel lots of geological layers;井点降水法在长输管道高水位砂砾地质层地段施工中应用
10.Precipitation in the Water Tube of Deep Foundation Construction管井降水在水中深基坑施工中的应用
11.To Solve the Construction Problem of the High-furnace Material Hole by Using the Construction Technology of Droping Sinking Wells Water Level;井点降水施工技术解决料坑施工难题
12.Application of Well Point Dewatering in Deep Foundation Excavation of Metro井点降水在地铁深基坑施工中的应用
13.The application of light well dewatering in deep foundation excavation轻型井点降水在深基坑开挖中的应用
14.Application of well-point dewatering technology on bridge deep foundation井点降水技术在桥梁深基坑中的应用
15.Adopt "water-jet" method to embedded well point pipe. Connect to the water-collect main line while the well point pipe is in the position.采用"射水法"埋设井点管.井点管下沉到位后,与集水总管连接.
16.Heat transfer model for a standing column well geothermal system循环单井井管-井孔-含水层传热模型
17.Waterproof and Shutoff for Closing of Pressured Dewatering Well Located in Foundation Pit基坑内承压降水井封井的防水与封堵
18.Application of Outer Precipitation in Auxiliary Shaft of East of Hangkou Colliery外围降水井法在巷口井东翼副立井的应用
相关短句/例句
Tube well draining管井井点降排水
3)well point de-watering (sleeve valve)井点(袖阀管)降水
4)pipe well for lower water管井降水井
1.The technique of pipe well for lower (obstruct) water is to set pipe well for lower water around deep foundation pit and draw water by phreatic water pump,thus can depress water pressure of underwater and lower water level,avoid great gush water in the process of construction of deep foundation pit and emerged harm of quicksand,and ensure the construction finish successfully. 管井降(截)水技术是通过在深基坑周围设置管井降水井,利用潜水泵抽排地下水,使地下承压力水减压后再降低地下水位,避免深基坑施工过程中大量涌水,并产生流砂危害,确保深基坑顺利施工。
5)dewatering[英][di:'w?:t?][美][di'w?t?]井点降水
1.Light dewatering used in the foundation of the bridge construction;轻型井点降水在桥梁基坑开挖中的应用
2.Analysis of dewatering in de ep foundation pit engineering;深基坑工程承压含水层井点降水分析
3.Combined with the light dewatering system adopted in the foundation excavation of one building,key points of design,materials and general step of construction are introduced for the light dewatering system.结合某建筑大楼基坑开挖所采用的轻型井点降水方法,阐述了轻型井点降水系统的设计计算要点、所需设备材料及施工的一般步骤。
6)well-point precipitation井点降水
1.Research on the design and construction of the program of well-point precipitation;井点降水方案设计与施工研究
2.On design of light well-point precipitation and its construction;轻型井点降水设计与施工
3.This paper, with the concrete engineering,expounded the practical application of the method of calculation of well-point precipitation.本文结合具体工程，阐述了井点降水计算方法的实际应用。
延伸阅读
井点降水法井点降水法lowering the water table by well point Ji叩d仰J心戊笋浏fo井点降水法(lowering the water table by we-n一point)预先将井筒穿过的含水层通过用钻孔进行疏干，然后掘进井筒的施工技术。在不稳定的含水岩层中开凿井筒时，在预定的井筒周围凿出钻孔，利用钻孔抽水或往下放水，使地下水位降落，疏干含水层。然后，在疏干区内进行井筒掘砌作业。井点降低地下水位的方法有抽水法和放水法.前者利用深井泵或潜水泵从井筒周围钻孔中抽水，使水位降低，形成疏干区。(见图)后者在井筒断面内凿出钻孔(滤水孔)，使地下水经滤水孔流人下部已开凿的巷道内，再转排至地面。抓 井点降水示意图 1一井筒;2一抽水孔.3一地下原有静水位， 4一深井泵.5一抽水时静水位 钻孔抽水法是在比井筒掘进直径大4m的布孔圈径上钻3~6个直径为100~500mm的钻孔，其深度以进人不透水层中2~4m为宜。随着钻凿孔的进行在钻孔中安设好保孔管，保孔管上钻有直径为5~15mm的小孔，包扎好金属过滤网，以防止砂粒进人撼管内磨损水泵或使孔壁坍塌.钻孔抽水时，孔内的水位急剧降低，形成水位最低点.外部围岩中的水，因存在水位差而流向孔内，水位降低较大，而远离钻孔的水流阻力则增大，因此水位降低较小，从而形成降水漏斗，满足了疏干要求。 矿井降水孔的涌水量多为30~loom，/h，主要含水层的水位降低值可达几十米。当含水岩层渗透系数大于3m/d时，井点降水法较为有效。井点降水法通常不能使水位降低到含水层的最低深度处，在隔水层上部有一段井筒的水没有被疏干称为残余水柱。必要时需要采取其他措施(如板桩法)来保证该段井筒的掘砌施工。 井点降低水位可使土体密实，引起结构上的土压力增高和地面下沉，应注意防止不均匀沉降。当含水砂层厚度不大、粘土夹层不超过两层，有良好渗透性时，宜采用钻孔抽水法。 (张著超)
