stooping down roof method

Analysis of longitudinal deformation profile in city-gate shaped tunnel using top heading and bench excavation method

上下台阶开挖下城门形隧洞纵向变形规律分析

The mathematical models based on fuzzy mathematics and grey system theory were applied to the prediction of the natural slope failure due to underground excavation under complex topography in mountain areas.

针对复杂地形条件下工程开挖的实际情况，利用Ｆｕｚｚｙ数学和灰色系统理论建立了预测山区地下开挖引起岩体及自然边坡失稳的数学模型，并对具体矿山工程中岩体移动和自然边坡失稳问题进行了计算和分析。

Large displacements of slope and surface deformation due to underground excavation are discussed using the DDA model with results compared with those from DEM.

基于 DDA计算模型 ,补充和发展了 DDA计算程序 ,分析了边坡大位移问题和地下开挖引起地面变形的工程实例 ,并与离散元计算结果进行了比较研究。

In order to ensure normal use of the near buildings under the influence of underground excavation,we need an accurate assessment on the influence of the underground excavating on the adjacent buildings damage.

为了保证地下开挖影响下建筑物的正常使用,需要准确评价地下开挖工程对临近建筑物损害影响的程度。

Analysis of longitudinal deformation profile in city-gate shaped tunnel using top heading and bench excavation method

上下台阶开挖下城门形隧洞纵向变形规律分析

She has trouble navigating the stair.

她上下台阶有困难。

Three-bench Seven-step Excavation of Lishi Tunnel

三台阶七步开挖法在离石隧道施工中的应用

Three-bench Ring-like Excavation for Core Soil in the Construction of Guangyi Tunnel

三台阶核心土环形开挖法在广以隧道中的应用

Three-bench Seven-step Excavation Method for Large Section Loess Tunnel

浅谈大断面黄土隧道三台阶七步开挖法

He fell down the steps and barked his shins.

他从台阶上跌下来，擦破了小腿上的皮。

Applying the technology of smooth blasting, the complete section of the Ⅲ surrounding rock and the half section of the broken and the Ⅱ surrounding rock have been excavated at the obverse step.

利用光面爆破技术，Ⅲ类围岩全断面一次开挖，Ⅱ类围岩和断层破碎带半断面正台阶开挖。

She couldn't find him from the top of the steps, and he wasn't on the veranda.

她从台阶上头向下看，找不到他，他也不在阳台上。

The Study of Field Measurements of Short Step and Seven-step-excavation in a Tunnel of Mild Clay Stratum

亚黏土地层隧道台阶七步开挖施工现场测试研究

That is the only way to seize opportunities to push the economy to a higher stage.

坚持改革开放才能抓住时机上台阶。

She flew up the front steps, across the porch and threw open the door.

她奔上屋前的台阶，穿过走廊，把门推开。

He had one over the eight and fell down the steps as he was leaving the party.

他喝过了量，离开晚会时倒在台阶上了。

Manual Excavated Continuous Concrete Wall of the Arch Bridge Abutment Foundation in the Loess Region

黄土地区拱桥桥台人工开挖地下连续墙基础

Blasting Excavation Experiment of Cliff Rock-bolt Beam in Underground Power House of Guandi Hydropower Station

官地地下厂房岩锚梁岩台开挖爆破试验

He was sitting on the bottom step.

他坐在最下面的一级台阶上。

What if you fall down the steps?

你要在台阶上摔下来怎么办？

I fell down the steps and barked my shins.

我从台阶上跌下，伤了我的胫。

Murray descended the steps into the swimming pool.

默里从台阶上下到游泳池里。