excavation factor 中文意思是什麼

excavation factor 解釋
挖掘系數
  • excavation : n. 1. 開鑿；發掘；挖掘；挖土，剜通。2. 穴，洞；坑道，開鑿成的山路。3. 【考古】出土文物，發掘物。
  • factor : n 1 〈英國〉經銷人；（代客買賣收取傭金的）經紀人；代理商；代辦人；〈蘇格蘭語〉 土地經管人。2 要素...
  1. Since the shallow depth excavation is the main factor to cause ground settlement in shenzhen subway tunnel, this paper discusses some corresponding countermeasures including the improvement of ground property, appropriate draining of groundwater, scheduled excavation depth and width, etc, to control strata distortion and surface settlement, and argues that these measures are expected to effectively control surface settlement while constructing city subway in soft ground excavation

    摘要針對深圳地鐵淺埋暗挖隧道施工中影響地表下降及地層變形的因素，提出了遵循「十八字」原則、改善土體特性、適度排放地下水、根據地層條件選擇施工方法、增大左右線隧道開挖面的距離、合理確定開挖進尺、提高施工效率、加強初期支護、及時施作二次襯砌等對策。
  2. The principal conclusions include : ( a ) the composite system is composed of both active - bearing structural members and inactive - bearing ones, being of a character of combination of rigid retaining structures with flexible ones, so its working mechanism will be behaved as sharing loadings, waterproof and impermeability, loading transfer, local reinforcement and pre - reinforcement ; ( b ) the experimental results show that much more subsoil will participate in retaining action, soil stresses of internal slope will be shared uniformly and deflections caused by excavation will be reduced notably because of cooperation of nails and cement - soil mixing pile wall ; and ( c ) the internal forces of facing in vertical model will be a control factor of design and the cross section tensile strength of cement - soil wall will govern strength of the

    主要研究結論有： （ 1 ）復合土釘支護的作用機理主要為臨時加固土體以保證局部穩定、有機聯系以共同承擔荷載、改善土體性質起到止水抗滲作用。 （ 2 ）試驗結果表明：復合土釘支護能夠充分調動周圍土體共同作用，有效地控制基坑變形；復合土釘支護中止水帷幕的插入深度和強度對控制邊坡變形與失穩有較大作用；復合土釘支護效果明顯優於一般的土釘支護。 （ 3 ）面層與邊坡土體共同變形，設計時可按外力作用下的彈性地基梁進行計算。
  3. During the deep - hole blasting for the excavation of guishan quarry for construction of baoquan pumped storage hydropower station, the blasting powder factor and the charging concentration of the blasting powder in the rock are reasonably controlled, and then the rate of blasting chunk is greatly decreased with the reduction of the working amount of the boulder blasting afterwards in conjunction with the suitable excavator and crusher etc

    摘要在寶泉抽水蓄能電站工程龜山料場開挖的深孔爆破中，合理控制了爆破單位耗藥量和炸藥在巖石中的集中度，最大限度地降低了大塊率，並結合使用適宜的開挖及破碎機械等措施，從而減少了二次爆破工作量。
  4. 2. the concept design is the key phase of the first stage of system optimization. the paper emphatically discusses with emphasis several issues difficulty to answer, such as the determination of the soil parameters, the soil pressure and the safety factor and the reliability of retaining structure, summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river, aged - clay, expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil, puts forward three basic principles of selecting schemes of retaining structure, namely : facing to the problem, facing to the characteristics of excavation and environment

    （ 2 ）概念設計是深基坑工程第一步優化? ?系統（方案）優化設計中的關鍵，文中重點討論了概念設計中的幾個難點問題，如土性參數的確定、土壓力的選取、深基坑工程的安全度和可靠度分析等；總結分析了飽和軟土、老粘性、膨脹土和黃土這四類常見地層條件下的深基坑工程中的主要巖土工程問題，其中重點研究了長江級階地上的飽和軟土深基坑邊坡變形和破壞模式，提出了選擇支護方案的基本原則，即：面向問題、面向基坑特點、面向周邊環境特點。
  5. In this article, geotechnical engineering numerical analysis program flac4. 0 is used, working mechanism and main influential factor of composite soil nailing system with step excavation was calculated in detailed, contain distribution and influential factors of axial force and the max axial force in soil nails ; the variation of axial force in anchors ; the variation and influential factor of foundation pit horizontal displacement, ground surface settlement, ground surface horizontal displacement and rebound deformation

    本文採用巖土工程數值分析軟體flac4 . 0 ，對樁錨復合土釘支護在分步開挖下的工作性能和主要影響因素進行了詳細的計算，分析了土釘軸力和最大軸力的分佈規律、影響因素;錨桿軸力的變化規律;基坑水平位移、地表沉降、地表水平位移和坑底隆起的變化規律以及影響因素的敏感程度。
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