1) frozen soft clay wall
![点击朗读](/dictall/images/read.gif)
软粘土冻土墙
2) frozen wall
![点击朗读](/dictall/images/read.gif)
冻土墙
1.
In spite of the properties of its convenience to engineering application, Sanger-Sayles formula, a method frequently used in thermal calculation of artificial frozen wall expending, is the solution of Fourier's thermal equation with the axisymmetric boundary conditions far from the practical engineering.
用于人工冻土墙形成过程相关计算的Sanger -Sayles经验公式虽然有便于工程使用的优点 ,但由于该公式是Fourier热传导方程在轴对称条件下的求解结果 ,与实际工程条件相差甚远。
2.
Numerical calculation was carried out of stress and deformation of the frozen wall around a deep pit.
对某深基坑冻土墙的受力与变形进行了数值模拟。
3.
Sanger-Sayles formula, a method frequently used in thermal calculation of artificial frozen wall expending, is the solution of Fourier′s thermal equation describing the axisymmetric problem with single value of thermal physical parameters.
用于人工冻土墙形成过程相关计算的 Sanger- Sayles经验公式是 ,Fourier热传导方程在单值热物理参数轴对称条件下的求解结果 ,对结构形成过程中冻结管吸热的计算采用了不合理的温度分布假设 ,计算结果不能令人满意。
3) frozen soil wall
![点击朗读](/dictall/images/read.gif)
冻土墙
1.
Finite element numerical simulation on creep of excavation of deep foundation pit conserved by frozen soil wall;
冻土墙围护深基坑开挖的蠕变有限元数值模拟
2.
Finite element analysis for the coupled problem of temperature and stress fields in excavation of deep foundation pit conserved by frozen soil wall;
冻土墙冻结温度场和应力场耦合的有限元分析
3.
Finite element numerical imitation of deep foundation pit excavating supported by frozen soil wall;
冻土墙围护深基坑开挖的有限元数值模拟
4) frozen clay
![点击朗读](/dictall/images/read.gif)
冻结粘土
1.
At the same time,the effect of negative temperature and confining pressure on the strength of frozen clay was analyzed.
以取自华东某地的深部粘土为研究对象,根据室内单轴和三轴压缩试验的试验结果,分析了高围压下冻结粘土的应力-应变行为与单轴压缩条件下应力-应变行为的异同,并讨论了围压和温度对冻结粘土强度的作用。
2.
The impact toughness and the uneven extent of destroyed sample are the practical indexes of impact properties of frozen clay.
以冻结粘土为试样,利用摆锤式冲击试验仪进行不同温度、不同冲击能量的带缺口的冲击实验,利用凿测器进行了冻土凿碎比能试验。
3.
The longitudinal and transverse wave velocities of frozen clays are measured by UVM-2 ultrasonic instrument and 500 kHz broadband ultrasonic transducer at the temperature of -1℃,-3℃,-5℃,-7℃,-10℃,-12℃,-15℃,-17℃and -18℃.
用UVM-2型声波仪和500 kHz宽带超声换能器实测了在-1℃,-3℃,-5℃,-7℃,-10℃,-12℃,-15℃,-17℃及-18℃等9个不同温度下冻结粘土的纵、横波速,对试验数据进行了分析,结果表明,冻结粘上的纵、横波速度随温度的降低而增大,当温度从0℃降至-4℃时,波速与温度呈线性关系,随着温度的继续降低,波速增加减慢。
5) frozen clay
![点击朗读](/dictall/images/read.gif)
冻粘土
1.
Neural network prediction of triaxial creep property of frozen clay;
![点击朗读](/dictall/images/read.gif)
冻粘土三轴流变特性的神经网络预测
6) clay core wall
![点击朗读](/dictall/images/read.gif)
粘土心墙
1.
After comparing of several schemes,Guangdong Huizhou Pumped Storage Power Plant chose the clay core wall rockfill dam for its four auxiliary dams.
粘土心墙堆石坝是应用最为广泛的坝型,但用于抽水蓄能电站的挡水坝在国内较少见,实践经验并不多。
2.
There are five types of seepage control for the earth rock cofferdams of the Gongboxia Hydropower Station, that is, asphalt impervious wall, cast in situ concrete impervious wall, clay core wall, geomenbrane impervious wall and high pressure rotation spraying concrete impervious wall.
公伯峡水电站土石围堰布置 5种防渗型式 ,分别是沥青防渗墙、现浇混凝土防渗墙、粘土心墙、土工膜防渗和高压旋 (摆 )喷混凝土防渗墙。
补充资料:粘土斜墙坝
粘土斜墙坝
earth dam with inclined clay core
和对不均匀沉陷的适应性不如心墙,但检修补强较易进行当坝址附近有大量透水料和足够的粘性土料而坝基不均匀沉陷较小时,可选择斜墙坝。当地基差需要处理而工期又较短时,采用此类坝型也是适宜的。 粘土斜墙坝上下游边坡的确定见坝坡稳定。 (陈吉社)n iantu xieqiangba粘土斜墙坝(earth dam with inelinedclay core)用斜筑于坝体上游部位的渗透系数较低的粘性土体作为防渗设施的土石坝。这种坝由斜墙上游保护层、粘土斜墙、反滤层、透水料坝体以及下游排水等绍成‘见图)。斜墙顶部高程不应低于最贴坡排水不透水层粘土斜墙坝高库水位,顶厚(垂直于斜墙面)不宜小于艺米。项部以下不同高程处的墙厚根据土料的容许渗透坡降确定,采用粘土时不小于1/10水头,采用壤土时不小于1/5水头。在粘土斜墙与岸坡或其它混凝土建筑物接头处,宜将斜墙厚度加大以保证结合良好。斜墙与坝体之间设置反滤层。斜墙上游保护层用砂砾(卵)石、碎石填筑,厚度一般大于1.5一2.5米 斜墙一般用粘性土,坝体可用一种或多种透水料,如砂砾(卵)石、风化碴等填筑。透水性较弱的细料宜置于坝内部,而透水性较强的粗料则置于坝壳的底部及外部,这将有利于渗透稳定和坝坡稳定。斜墙坝采用的上料质量与压实要求与心墙坝相同(见粘土心墙坝)。 粘土斜墙坝的透水料坝体填筑不受粘土斜墙施工进度的限制,在雨季或寒冷地区冬季不能填筑粘土时,坝体仍能正常施工。如斜墙的基础处理工程量很大,可与斜墙及坝体平行作业,不致影响主体施工,故可加快工程进度。由于粘性土料的抗剪强度低于砂石料,故粘土斜墙坝的上游坡一般较心墙坝缓,致使斜墙坝所需的粘土及坝体总工程量多于心墙坝。斜墙抗裂性能
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