collar cave

用法例句

The 12m reinforced concrete roof truss located at the south side was collapsed in May 2003.

上海某炼胶厂一车间建于20世纪80年代,由南向北并排五跨,屋盖以下采用钢筋混凝土柱、吊车梁等常规作法,但屋架排列很密,为非预应力钢筋混凝土折线形屋架,整体浇筑的钢筋混凝土板直接覆盖在屋架上,为满足采光要求,部分屋架上增设了天窗,其中南边跨的12m钢筋混凝土屋架于2003年5月塌落。

For complex geological structure down hole, drilling problems such as lost circulation and hole collapse often occur in these wells.

吉林油田开发的新区块中,多数井井深为1500-2500m,井下情况复杂,井漏、井塌现象时有发生、地层油气水活跃,给固井施工造成了很多困难,也严重影响了固井质量。

According to statistic data of five wells, the reason that brought about lost circulation,hole caving,drill pipe sticking, difficulty in running casing ,fresh water problem of formation in drilling operation in west Sichuan Majing structure were analyzed.

根据５口完钻井资料统计，分析了川西马井构造上钻井过程中井漏、卡钻、下套管作业困难、地层出淡水等复杂情况产生的原因，讨论了解决井漏及井塌问题的对策措施，并从井身结构设计、钻具组合、钻井液性能控制、固井设计、地层承压试验等８个方面提出建议。

vibrations will cause the roof of the mine to collapse.

震动会引起矿顶塌落。

When did the ceiling cave in ?

天花板什么时候塌落的?

All walls are great, if the roof doesn't fall!

所有的墙都很伟大，只要屋顶不会塌落！

Props were used to prevent the roof collapsing.

用了一些支柱以防止屋顶塌落.

That laboratory is falled because of not having been used.

那个实验室由于未被使用而开始塌落。

"One of our favorite Nursery Rhymes-I'm sure everyone knows ""London Bridge is falling down""."

有一首尽人皆知的儿歌：伦敦桥要塌落。

Analysis on Surface Impact Vibration in Blasting Demolition of Building;

建筑物爆破拆除塌落触地震动效应研究

The Effact Research of Rail Bar in the Dealing with Rock Collapse and Stone Fall Disease;

钢轨栅栏在崩塌落石病害整治中的应用研究

Research of Collapse Course and Ground Vibration in Demolishing Building by Blasting;

爆破拆除塌落过程及触地震动的分析研究

CASE ANALYSIS OF OUTFIRE TROUBLE IN BOILERS DUE TO ASH-SLAG COLLAPSE AND COUNTER-MEASURES THEREOF

灰渣塌落引发的锅炉灭火故障案例分析及对策

Experiment and Calculation of Vibration in the Roof Caving of Underground Mine Cavity

地下矿山空区塌落产生震动的实验与计算

DISCUSSION ON CALCULATION FORMULA OF COLLAPSING VIBRATION VELOCITY CAUSED BY BLASTING DEMOLITION

爆破拆除塌落振动速度计算公式的讨论

Safety Analysis of Nearby Building Structure under Collapse Vibration in Blasting Demolition;

建筑物爆破拆除塌落振动作用下周边结构的安全性分析

Design and Research on the Drum and Blade of Concrete Mixing Truck for Low Stump Concrete;

低塌落度混凝土搅拌运输车罐体及叶片设计与研究

SNS Soft Protective System on Dangerous Rockbody (rockfall) of QingLian Expressway;

柔性防护技术在崩塌落石灾害防治设计中的选用

The Formation Mechanism of Three-dimensional Soil Arching and the Applied Research in Slope Engineering

三维塌落拱的形成机理及其在边坡工程中的应用研究

The mass that slides.

塌方滑落的成堆物质

with the peeling paint and falling-down veranda,

外面的油漆都脱落了，阳台也快塌陷了。