下沉

Based on the total potential energy principle, the cusp catastrophic model for instability and failure of deep-buried tunnel surrounding rock is established. Through the observed data of settlement values of typical section vault of deep-buried tunnel and the sudden threshold values of displacement of each monitoring section, the variable values of vault settlement function are obtained, and the stability of deep surrounding rock in tunnel is decided.

运用突变理论探讨了深埋隧道失稳的机制；根据总势能原理，建立了隧道失稳的尖点突变模型，导出了失稳的力学判据条件；并基于深埋隧道典型断面拱顶下沉量现场量测的数据，计算出拱顶下沉函数的各变量值，由各监测断面位移突变阀值来判别深埋隧道围岩的稳定性，分析结果与实际施工围岩情况一致。

Arms out to the side, drop the elbow , drop the wrist, lift the fingers ,and drop the middle finger .

手臂向两侧伸开，手肘下沉，手腕下沉，手指翘起，并且沉下你的中指。

It suggests that the horizontal momentum of the meso-cyclone was brought down to the surface by heavy rain. At the right edge of meso-cyclone the momentum and RIF have the same direction, the two airflows overlay together and make the wind increase, so damage wind occurred.

分析认为，弓状回波后部存在较强后部下沉入流，由于强降水的拖曳作用，将中层中气旋的水平动量带到地面，中气旋右侧动量的方向与弓状回波后部的强下沉入流方向一致，两者叠加，使地面风速加大，造成灾害性大风。

Being the large size of extra caissons and effect of uncertainties in construction, the sink motion of extra caissons in soil can be considered as rigid motion of multiple degree of freedom in three-dimensional system.

沉井结构的刚度及尺寸较大，并且受不确定性因素的影响，其在土介质中的下沉运动可以认为是刚体运动，因而沉井的实际下沉运动是空体系下的多自由度的刚体运动。

The author suggests that, when a drop shaft subsides in normal conditions, not only it bears the earth pressure of the pit but also suffers from the passive soil pressure on the foot blade of the drop shaft.

分析探讨沉井在表土中下沉时所引起的受力现象及其相关的论点，发现沉井在正常下沉过程中，不仅仅会受到竖井表土地压的作用，更主要是沉井的前端受到被动土压力的作

The law about the two stages development and the O-shaped circle distribution of bed-separation and conducting-water and gas fractures has been revealed.

研究了关键层破断块度对&砌体梁&结构下沉曲线形态的影响，并提出了&砌体梁&结构下沉曲线的拟合方程。

But the short layoff, and the comfort of pitching at home, did not change much for Wang. Again, his sinkers were not sinking.

但在短时间休息而在主场上场的小王，并没有多大的不同，再一次的，他的下沉球没有下沉。

Temporary support, anchored grouting and enhanced water diversion and discharge are taken to solve the subsidence of water-saturated shallow-depth fracture zone vault of Haozhuang Tunnel along Tongchuan-Huanglin first-class highway.

为了解决铜川—黄陵一级公路蒿庄梁隧道富水破碎带拱顶下沉问题，采用了加强临时支护、吉迈式锚杆注浆、加强引排水等措施进行了治理，有效地固结了断层破碎带，形成应力圈，控制住下沉，解决了淋滴水和漏水问题，处理效果较为理想。

In-situ monitoring gave the following results: 1 a tension stress zone occurred at the bottom of reinforced rock mass which indicated that the role of rock bolting was remarkable; 2 stress concentration at surrounding rock of main shaft was gradually transferred from shaft wall to complete rock mass far from shaft center; 3 vertical displacement was gradually smaller from up to bottom and from center to outside of the reinforced loose rock mass.

首先，建立了主溜井三维有限元计算模型，模拟了主溜井围岩的塌落破坏过程和加固后的加固体的稳定性及变形特性；同时，还采用多点位移计等对加固体的稳定性进行了实地监测。计算结果表明：网棚锚注加固体的纵剖面上的压力和位移规律是①加固体下部局部出现拉应力区，表明锚杆的使用是合理的；②加固体内的应力由塌落中心向周围围岩过渡，应力越来越大，最终将荷载传至围岩中；③从下到上下沉逐渐减小；④从加固体中心到周围下沉位移逐渐减小，且近似一条抛物线。

Extra sag on the front end will decrease the effective steering head angle, quickening steering, while too little front sag will slow steering.

车前端额外的下沉会减少转向头的角度，加快转向，小的前端下沉会减慢转向。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。