流土

渗透破坏的两种基本形式为管涌和流土。

The two basic forms of penetration destroy are canal gush and soil flow .

根据双层地基的特点，分别对复合土工膜堆石堤堤基采用高压喷射灌浆板墙方案和压重防止管涌流土方案的防渗效果及经济性进行了计算比较。

Based on a double foundation characteristic , two schemes of high pressure ejecting grout plank wall and ballast for preventing piping and soil flow were investigated .

堤基渗流破坏的最终形式是流土；

( iii ) the final form of seepage failure is mass-flow ;

流土灾害的形成机理与治理

Formation Mechanism and Treatment to Flowing Soil

对于管涌、流土、热传导等工程问题具有一定的意义。

The study is of much significance to engineering problems such as piping , sapping , and heat conduction .

平台流土破坏判定公式不仅可以用于坡体渗流场，而且可以用于渗沟盲沟工程的渗流场破解。

This formula can be used not only the slope seepage field , but also the sewer blind ditch project essay .

流土灾害是各类工程活动中经常遭遇到的与地下水有关的地质灾害之一。

Flowing soil is one of the moat familiar kind disaster related to ground water during all kinds of engineering buildings .

同时还证实：随着可动颗粒的流失，管涌破坏可以转化为流土破坏。

In addition , it also proves that the piping failure can turn into soil-flow failure with the washout of movable grains .

土的渗漏破坏包括四种形式，它们是流土、管涌、接触流土和接触冲刷。

The earth seepage failure includes four types . It 's about mass flow 、 piping 、 contact mass flow 、 contact rush .

渗透变形的形式为流土，破坏临界比降为09～173，属抗渗能力低的细粒砂土；

Flow soil is a deformation caused by seepage . The fine sandy soil whose critical ratio to wreck is between 0.9 to 1.73 has a low ability of anti-seeping .

反滤层的作用是滤土排水，防止水工建筑物在渗流逸出处遭受管涌、流土等渗流破坏。

The role of the filter layer is filtered the soil and drainaged , to prevent hydraulic structures from suffered the canal gush , soil flow and other seepage damage .

遇持续暴雨作用，此种残坡积土局部发生启动下滑-流土，进而在动水压力作用下下泻造浆形成坡面泥石流。

When rainstorms persist , such soils will start to slide down the slope and be eroded , and furthermore , they rush down and form slurry , thus giving rise to slope mudflow .

将预测结果与试验边坡现象对比分析，分析结果表明平台流土破坏公式能够较准确地预测滑坡是否发生及滑坡的形式与位置，可以作为降雨型滑坡的破坏依据。

Have a compare between the predicted results and experimental slope phenomenon , the results show that the platform flow of soil destruction formula groove more accurately predict of the form and location of landslide .

基于对堤防管涌（流土）险情的发生、发展和破坏机理的分析，设计了一种新型的滤层结构，即包括减压、过滤和保护三层合一的滤垫。

Based on the analyses of the occurring , developing and failure mechanism of piping in a dike , a new filter structure , namely a filter mattress with a pressure reducing layer , a filter layer and a protective layer , is designed .

笔者在考察过程中发现，反滤料的失效除了流土和接触流土外，还有滤饼堵塞、滤层击穿和滞流三种失效方式。

The author in the process of investigation found that the failure of the filter material , except of the flowing soil and contact flow soil , contained the filter cake jams , the filter layer breakdown and " stagnation " three failure mode .

线弹性海床中的渗流采用达西流，土骨架的位移及孔隙水压满足Biot固结理论。

The displacements of soil and the porous fluid pressure satisfy Biot consolidation theory .

直接铺设于砂质海床上的管道的失稳是一“流管土”耦合问题。

The instability of pipelines directly installed on the seabed is a " fluid-pipe-soil " coupling problem .

本文结合工程实践，提出了两种在流塑土及回填砂层中施工钻孔灌注桩的新工艺，着重阐述了在回填砂层中施工的新工艺&双护筒法。

In this paper , two kinds of new technology of construction of bored pile in plastic soil sand backfilled base are advanced practically , especially , the new method-double protecting tube of construction in the sand backfilled base is expatiated on .

通过在垂直流模拟人工土柱上种植不同的花卉植物，研究了垂直流花卉人工湿地对污水COD、BOD5、TN和TP的净化效果的影响。

Different flowers and plants were planted in simulated vertical flow flower constructed wetlands . The effects of flowers and plants of constructed wetland on the purifying efficiency of wastewater for COD , BOD_5 , TN and TP were studied .

用流泵测定土的渗透系数

Measuring seepage coefficient of soil by flow pump

同时，由于在松散砂土、软塑、流塑粘性土、有丰富地下水源的软弱土和高层建筑的深基坑开挖情况下使用土钉支护，都发生了一些事故。

And some accidents have taken place when soil nailing was used for deep foundation pit supporting with soft soil layers .

油藏开发初期，曾采用常规压裂，限流压裂和土酸酸化等增产措施，但效果不理想。

During initial reservoir development period , the result of well stimulation using conventional fracturing , limited entry fracturing and mud acidizing is poor .

在系统熵值方面，水田的6种模式均达到了能量的负熵流，旱土只有玉米／包菜／小白菜模式和豇豆／生姜／香芋模式为负熵流。

About the system entropy value , the 6 cropping pattern of rice paddy are all minus entropy value , and only cowpea / ginger / fragrant taro pattern and maize / cabbage / pakchoi pattern is minus entropy value in the 6 cropping pattern of dry land . 2 .

水平旋喷桩在深圳地铁大&科区间流塑状粘性土中的应用

Application of Horizontal Chemical Churning Pile to Flow Plastic Clayey Soil

地下水非稳定流理论在饱和土渗透固结中的应用

Application of Groundwater Non-stable Liquid Theory in Infiltration Concretion of Saturated Soil

流砂、软土地质钻孔灌注桩的施工

Construction of Bored Piles in Geologic Conditions of Drift Sand and Soft Soil

原状土中产生了明显优先流，而筛分土则保持稳定渗流特性。

A significant preferential flow was produced in the nature soil , but in the sieved soil , it remained as a steady seepage .

越流滞后时间与土的固结程度有关，笔者采用一维固结理论提出了计算越流滞后时间的方法。

The hysteretic time of leaking is related to the concretion degree of clay . We have put forward a method of calculating the hysteretic time of leaking by adopting one-dimensional concretion theory .

青岛、大连、珠海等基岩埋深浅的沿海地区深基坑经常需要挖至基岩甚至需要爆破开挖，基岩以上又有流砂、软土、地下水等。

Deep foundation trenches in shallow rocks in some cities along a seashore like Qingdao , Dalian , Zhuhai things like that often need to be dug or exploded into hard rock , there are heaving sand , soft soil , groundwater upon it .

通过对室内挡板下落试验的颗粒流数值模拟，验证了颗粒流模拟土拱效应的可行性。

Simulation of soil arching by particle flow code was proven feasible through comparison of the results of trapdoor simulated by particle flow code with those of trapdoor tests .