1) excavation in blocks
开挖分块
2) bottom headingover-head bench
全断面分块开挖法
3) stratified excavation
开挖分层
1.
In comprehensive consideration of various factors,reasonable stratified excavation was determined and effective measures of .
拉西瓦水电站地下厂房位于高地应力区,厂区最大主应力达20~30MPa,为确保施工、运行期的安全及开挖质量,对围岩弹性释放能和能量释放率进行了计算分析比较,综合考虑其他因素后,合理确定了地下厂房开挖分层,并提出了厂房顶拱开挖方法及支护措施。
4) staged excavation
分步开挖
1.
And the changes of the stress field and bias field of the surrounding rock of the tunnel under two kinds of conditions and with the staged excavation are obtained as well as the stability analysis of the surrounding r.
得到了两种情况下的隧道围岩在分步开挖时的应力场、位移场的变化情况,以及围岩稳定性的分析。
5) excavation by steps
分步开挖
1.
Studies on displacements and earth pressures of pit-retaining structure during excavation by steps;
分步开挖过程中基坑支护结构的变形和土压力性状研究
2.
At the same time,some calculating methods of earth pressures are discussed,such as estimating water and earth pressures together,estimating water and earth pressures separately,excavation by steps according to the construction process,earth pressures c.
根据基坑支护工程的设计计算理论与工程实践的发展与动态,参阅大量相关资料,结合近年的研究成果,对支护结构土压力计算理论的创新与发展进行了分析,并对水土合算、水土分算、考虑施工过程的分步开挖、考虑渗流时的土压力计算方法进行了论述。
3.
Equation of ultimate state of active earth pressure loading increment on retaining wall in foundation pit during excavation by steps is set up;coefficient of sorting of earth pressure loading conforming to the requirement of reliability is given;problems in earth pressure calculation during excavation by steps are analyzed.
以朗金土压力公式为基础,建立了分步开挖基坑挡土墙上主动土压力荷载增量的极限状态方程,给出了符合可靠度要求的土压力荷载的分项系数;分析了分步开挖时土压力计算中应注意的问题,并分析研究了土性参数的变异性与荷载分项系数对土压力可靠度计算的影响。
补充资料:分块对角算子
分块对角算子
block - diagonal operator
分块对角算子)bl以尘一山ag00al 01犯m妞;皿泌~即~。~云.州四T叩}关于凡lbert空间H的一个给定的正交分解H=艺、1。从的 H卜一个线巴算子滩,它对每个子空间H*(k妻l)是不变的A的谱是诸“分块”Af,,、二A、(人)l)的谱的并的闭包、{引}二、、甲‘、到戍;在广泛的意义下,个分块对角算f是在氏l忱rt空间的直接积分中乘以函数又的算一护,组- H一石。““,“风‘’,‘A“‘’二·“)f(‘’,‘任M·这银又(t)是作用了空间H(r)上的线性算子.每个与-个正规算子交换的算r,关于这个止规算子的谱分解,是个分块对角算一J几.亦见对角算子(diagonal operator).
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