
地下挖掘
The tower in Westminster is sinking into the banks of the Thames, partly as a result of decades of underground excavation.
位于威斯敏斯特的這座鐘樓正朝泰晤士河堤岸傾倒,造成這一結果的部分原因是長達幾十年的地下挖掘。
It is an useful tool for analyzing the effect of tunnel excavation in soil in a city and shallow underground excavation at mines.
本文計算方法可供城市在軟上中開挖地鐵及淺部礦山巷道掘進引起的地表移動進行分析。
The tower in Westminster, which houses the giant bell known as Big Ben, is sinking into the banks of the Thames, partly as a result of decades of underground excavation.
大本鐘的鐘樓位于威斯敏斯特區,目前鐘樓正慢慢陷入泰晤士河的河岸裡,部分是因為長期的地下挖掘施工造成的。
This paper puts forward the concept and method about the network graphics of underground excavation cluster of hydropower station firstly.
本文首先提出了水電站地下洞室群空間網絡圖化的概念和方法。
The paper analyses CFD commercial soft in-depth, puts forward some problems when CFD commercial softs are used in he underground excavation cluster of hydropower station and corresponding resolvent.
本文首先對目前常用的CFD商用軟件進行了深入地分析,并提出了其在地下電站應用中的一些問題以及相應的解決方法。
Because of the poor strength and the typical creep character of the soft rock, it is difficult to excavate and support the underground excavation.
軟岩強度低,且具有明顯的蠕變特性,常給地下巷道的開挖和支護帶來很大的困難。
The wedges formed after excavating in jointed rock have direct effect on stability of large underground excavation.
節理岩體開挖後經常形成楔形塊體,對大型地下洞室頂拱和邊牆的穩定性構成威脅。
It is of help to understand the mechanism of deformation and failure of underground excavation in rock mass.
分析有助于我們增加對動荷載下地下洞室圍岩的變形和破壞機制的認識。
Shield tunneling method has become a primary method in underground excavation with its predominance, earth pressure balanced shield tunneling (EPBS) is the most universal type in our country.
盾構隧道法開挖憑借自身的優勢成為城市地下施工的主要手段,其中土壓平衡式盾構目前在國内使用較為普遍。
NATM and shield driven method are two main kinds of underground excavation construction methods in urban metro works.
淺埋暗挖法和盾構法是城市地鐵采用暗挖施工的兩種主要的暗挖施工方法。
For not affect the normal running of the railway, through scheme comparison, the scheme of vertical shaft, supporting \u0026 protective tube shed, underground excavation, and lining grouting are adopted.
為在施工中不影響鐵路的正常運行,通過方案比較,采取了豎井、管棚支護、暗挖和襯砌的施工方法,獲得成功。
The experience in Beijing underground railway construction was introduced, where the design by shallow cover underground excavation method and construction with NAM principles were applied.
本文就北京地鐵建設中首次采用淺埋暗挖法設計,按新奧法原理進行施工的經驗做了全面介紹。
As a result, the deployment of the design method of the hydropower plant ventilation and air conditioning systems in the underground excavation cluster has great practical meanings.
所以展開水電站地下洞室群通風空調系統的設計方法的研究具有現實意義。
The influence of the groundwater, seismic loading and the coupling of the two on the mechanical behavior of the underground excavation in the jointed rock mass is investigated.
本文主要讨論地下水、地震荷載以及地下水與地震耦合作用對節理岩體中地下洞室圍岩力學響應的影響。
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計算模型,補充和發展了DDA計算程式,分析了邊坡大位移問題和地下開挖引起地面變形的工程實例,并與離散元計算結果進行了比較研究。
Based on the in situ measurement, this paper discusses the key problems which effect the deformation and stability of underground excavation pit in Shanghai soft soil.
本文依據現場測量論述了影響上海軟土深基坑變形和穩定的關鍵問題。
Underground excavation leads to surface subsidence. Once the surface deformation value exceeds a certain limit, the railway in surface subsidence area will be seriously damaged.
地下開挖工程導緻地表沉陷,一旦地表變形值超過一定界限時,地表沉陷區内的鐵路就會受到嚴重破壞。
Oriented toward the development of a 3D visual modeling system for geological and mining engineering, a voxel- based algorithm for computing underground excavation volume is proposed.
根據地礦工程體視化仿真系統研究工作的需要,提出了一種基于體素的地下采掘工程量的計算方法。
When conducting numerical analysis of plastic cracking zone of rock mass subjected to underground excavation, its results mainly depend on the adopted plastic flow criterion.
采用數值方法分析地下洞室開挖後的岩體塑性開裂區,與實際情況差異較大;
A stratified model for the analysis of ground subsidence due to underground excavation is established based on elastic-thin-plate bending theory in the rock mass displacement fields.
文章以金川二礦區的岩體移動為例,對急傾斜厚大金屬礦山的岩體移動這一重大工程難題進行了探讨。
The rockburst tendency of rock specimen is an important parameter in describing the rockburst in underground excavation.
試樣的沖擊傾向是反映岩石發生沖擊地壓難易程度的重要參數。
Influenced by faults, the mechanism of rock movement was different due to the underground excavation in hangingwals and footwalls of faults.
受斷層影響,在斷層上盤開挖與下盤開挖時具有不同的岩移機理。
Thus the concept of tectonic stress general changed stress must be introduced into the anticipate formula system of tectonic stress ground surface subsidence caused by underground excavation.
引入概化地應力概念,導出了構造應力作用下地表變形的預計公式體系。
Control Effect of Rock Mass Structure on Stability of Large Underground Excavation;
大量工程實踐已證明岩體結構是控制岩體穩定性的重要影響因素。
"underground excavation"是由"underground"(地下)和"excavation"(挖掘)組成的複合術語,指通過工程手段在地表以下進行的岩土開挖作業。該技術廣泛應用于現代基礎設施建設,根據國際隧道協會(ITA)的定義,其核心目标是在保障安全的前提下,構建穩定的地下空間結構。
從工程類型可分為三類:
美國土木工程師學會(ASCE)強調地下開挖需重點控制三大要素:岩體應力分布、地下水滲透壓力和支護結構時效性。現代工程實踐中,BIM技術和三維地質建模已實現施工過程的可視化模拟,顯著降低施工風險。
在岩土力學領域,特雷斯卡屈服準則(Tresca yield criterion)常用于預測開挖引起的岩體變形:
$$ sigma_1 - sigma_3 = 2k $$
其中$sigma_1$為最大主應力,$sigma_3$為最小主應力,$k$為材料剪切強度。該公式為支護設計提供理論依據。
“Underground excavation”是由兩個核心詞組成的短語,其含義需結合兩者的詞義進行綜合解釋:
underground(形容詞/名詞)
excavation(名詞)
“Underground excavation”指在地下進行的挖掘活動,常見于以下場景:
如需進一步了解具體案例或技術細節,可參考上述來源中的工程或考古相關内容。
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