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1)  overbreak control
超挖控制
2)  control of over tunneling and less tunneling
超欠挖控制
3)  bowl control valve
挖斗控制阀
4)  Over-excavation
超挖
1.
The geological defects and over-excavation of underground powerhouse have an bad impact on the rock-bolt crane girder in bolt axial force,beam deformation and the interface of the rock-bolt crane girder and the rock wall.
地下厂房的地质缺陷和超挖往往对岩锚梁的锚杆受力、梁体变形以及岩锚梁与岩壁的结合面产生不良影响,本文对三板溪水电站岩锚吊车梁施工过程中的缺陷成因和处理措施进行了研究,最后对岩壁整体超挖时对锚杆拉力和岩壁抗滑稳定系数的影响进行了敏感性分析。
2.
So it has practical significance to research the control of over-excavation.
隧道钻爆法施工中,普遍存在超挖问题。
3.
Aiming at the problem of structure design of a highway tunnel crossing active faults zone,protective design strategies of breaking resistance are put forward;and then over-excavation and articulated design are discussed.
针对穿越活动断层区隧道的结构设计,提出活动断层区隧道结构的抗断设计对策;对"超挖设计"和"铰接设计"两种抗断设计方法进行了讨论;提出了"铰接设计"中隧道节段长度及节段间连接抗剪刚度的计算方法,并分析了连接剪切失效后隧道节段的运动特征。
5)  over excavation
超挖
1.
Begining with the current situation of the over excavation of main ramp,the analysis of the cause of over excavation was made and measures for reducing over excavation in the construction of large section tunnel were brought forward.
从新城金矿主斜坡道超挖现状入手,分析造成超挖的原因,提出减少大断面巷道( 硐室) 掘进施工超挖的具体措施,以提高矿山综合经济效益。
2.
Based on the application of tube frames in tunnel construction, their functions to prevent over excavation and cave in in soft and weak wall rocks are summarized, and the construction techniques are also introduced in detail.
结合隧道施工现场管棚的应用情况,总结了管棚在软弱围岩隧道施工中对预防超挖及塌方的作用,并详述了管棚施工工艺。
3.
An engineering example that a deep foundation pit is in dangerous status caused by over excavation in soft clay is described.
介绍一软土地区深基坑由于超挖引起基坑险情的工程实例。
6)  overbreaking
超挖
1.
Analysed the factors of overbreaking,offered some preventative and reducing overbeaking measures.
分析了超挖的因素,提出了防止或减少超挖的措施。
2.
According to the blasting theory and testing results of real tunnel,the parameters of smooth blasting are comprehensively studied and the overbreaking of tunnel is controlled.
本文依据爆破理论结合现场试验结果,对光面爆破参数进行了综合研究,较好地控制了超挖现
3.
In addition, overbreaking greatly affects the vertical deformation, and aggravates horizontal deformation.
结果表明,基坑开挖应采用竖直方向分层、水平方向分段进行的方法,在深度较大的地方分段的长度应适当减小,超挖对基坑边壁的竖直方向变形影响很大,且使边壁的水平方向变形量增大,应当尽量避免超挖出现。
补充资料:超改进控制加权形心单纯形法
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CAS号:

性质:结合了超改进单纯形法与控制形心单纯形法两者的优点而产生的一种单纯形优化方法。由除响应值最差的顶点w以外的其余各单纯形顶点的响应值计算加权形心点pw,引入控制参数γ调节加权形心点的位置,确定w的反射点pγ,以保证单纯形沿逼近梯度的方向推移。在确定的推移方向上,根据顶点w、加权形心点pw。和反射点pγ的响应值用二次曲线拟合求导,决定单纯形的新顶点,以保证新顶点在该推移方向上是最优的,从而加快了优化速度。

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