1) basin excavation
盆式开挖
2) basin earthwork excavation
盆式挖土
1.
In this article,authors introduce the monitoring of supporting and protecting structure,analyses and treatments of abnormal phenomena during basin earthwork excavation in the construction of supporting and protecting structures in underground continuous wall in deep foundation ditch.
介绍地下连续墙内支撑支护结构的深基坑施工中 ,进行盆式挖土时 ,支护结构的监测情况及对监测中所发现各种异常现象的分析与处理。
3) excavation method
开挖方式
1.
The relationships among deformation,stress and damaged state of surrounding rock mass of soft rock tunnel,excavation methods and supporting schemes are studied under the conditions of high geostress and low mechanical parameters of rock mass based on small strain-large deformation theory and 3D FEM.
应用弹塑性小应变大变形理论,运用三维有限元方法研究了台湾软岩隧道在高地应力和围岩岩体力学参数较低的情况下,围岩变形、受力及破坏状态与开挖方式和支护方案的关系,得到了一些有益的结论,为该地区隧道合理施工提供了依据。
2.
Mechanical effect of ground and composite lining is taken as study object after the small-distance tunnels located at soft ground achieves stability by different excavation methods,and the analysis is focused on mechanical characteristics of bolt,shotcrete,secondary lining,also the influence of middle rock wall different interval on the plastic zone of middle rock wall.
以软岩小净距隧道在不同开挖方式下达到稳定后围岩和复合衬砌的力学效应为对象,重点分析不同开挖方式下锚杆、喷射混凝土层和二次衬砌的受力特点,考察不同净距对中夹岩柱塑性区的影响。
3.
Mechanics effect of ground and composite lining is taken aa study object after small - distance tunnels which are located at soft ground achieves stability under different excavation methods, and analysis is focused on mechanics characteristics of bolt, shotcrete, secondary lining, also the plastic zone influence of middle rock wall with different interval.
结合某公路隧道出口端隧道间距较小的实际情况,运用数值计算的方法,对软岩条件下小净距隧道在不同开挖方式下达到稳定后围岩和复合衬砌的力学效应进行了分析,同时,考察不同净距对中夹岩墙塑性区的影响。
4) hydraulic character
开挖形式
1.
Through the method of model test combined with summation of experiences in engineering practice, the hydraulic character of fork shaped rapids were studied, put forward the principle of regulation, revealed the influences of excavation form upon the effect of regulation.
通过模型试验与工程实践经验总结相结合的方法，研究了分仅型急流滩的水力特性；提出了该滩型航道的整治原则；对比了开挖形式对整治效果的影响。
5) island excavation
岛式开挖
1.
On construction technology of earthwork island excavation of deep foundation pit
深基坑土方岛式开挖施工技术
6) cave-dwelling type rock cut
窑洞式开挖
补充资料：欧洲式期权、美国式期权与亚洲式期权
欧洲式期权、美国式期权与亚洲式期权
【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期，过了失效日后，权利即行作废。一些期权规定权利仅能在有效期的最后一天执行，这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行，这种期权被称为美国式期权(一~oPtions)。值得指出的是，虽名为欧洲式或美国式期权，但已无任何地理上的意义。由于欧洲式期权的规定过于严格，又出现了一种“改变的欧洲式期权”，它允许期权在一定的时间范围内进行交易。可见，美国式期权为期权购买者提供了更多的选择机会，因此，它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国，所交易的期权均以美国式为主，欧洲式期权虽仍存在，但其交易量已比不上美国式期权。 在so年代末期，市场上又出现了一种所谓亚洲式期权(asian ontions)，但也无地理上的意义，其差别主要在于履约价值(exe而sev公此)的计算。以买权为例，无论是美国式期权或是欧洲式期权，执行权利所能得到的履约价值均为当时标的物的市价减去履约价格，再乘以合约所定的数量，但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止)，减去履约价格，再乘以合约所定的数量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条