1) dewatering well
降水井
1.
Introduced are the method and detail drawing of waterproof construction of basement anti-floating anchor rod and dewatering well.
对地下室抗浮锚杆及降水井处提出了防水作法及构造详图,抗浮锚杆处采用二道改性沥青油膏及二道改性沥青防水卷材防水,降水井处采用根据施工经验改进后的防水措施,增加了卷材套箍及滤水槽。
2.
The measures such as waterproof curtain, dewatering well, seepage control wall, ground surface chemical grouting and so on are used in order to prevent groundwater from leaking into the tunnel, improve the surrounding rock stability, and ensure the safety and quality of the construction.
用止水帷幕、降水井、多头搅拌水泥土防渗墙及地表化学注浆等措施,防止富水砂层段地下水侵入隧道,提高围岩稳定性,保证施工安全及质量。
3.
Combining with the foundation pit supporting project for Jiali garden building in Chao-yang district of Beijing city,the design of this foundation pit construction composed of pit、dewatering well、anchor and CFG pile composite foundation was expressed.
结合北京市朝阳区嘉丽花园住宅楼的基坑支护工程,详细介绍了基坑、降水井、锚杆和CFG桩复合地基这一基坑支护方案的设计。
2) 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。
3) dewatering
[英][di:'wɔ:tə] [美][di'wɔtɚ]
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。
4) 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。
5) well-point dewatering
井点降水
1.
The application of well-point dewatering in deep excavation work and construction example;
井点降水在基坑施工中的应用及工程实例
2.
Analysis of irregularly arranged well-point dewatering and settlement;
非规则排列的井点降水与沉降计算分析
3.
On calculation of hydrologic parameter in well-point dewatering
井点降水水文参数的计算
6) tube well dewatering
管井降水
1.
The application of tube well dewatering in treatment of weak permeable stratum in deep excavation work;
管井降水在深基坑弱透水地层中的应用
2.
Analysis of tube well dewatering construction in underpass;
地下过街通道管井降水施工实例分析
3.
Application of water-seal curtain and tube well dewatering in support of deep foundation pit
止水帷幕和管井降水在深基坑支护中的应用
补充资料：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)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条