Air pressure on the surface of the Earth is fairly constant, so in designing a microphone for use on land, engineers don't have to worry about large variations in air pressure.
地球表面的气压相对稳定,因此设计地面用的传音器,工程师并不需烦恼气压的大幅变化。
They allow some of the tremendous pressure building up inside the earth to be gradually released.
它们让积聚在地球内部的某些巨大压力慢慢地得到释放。
Some scientists say a slow earthquake could be helping to release pressure of the earth, and able to prevent powerful quakes.
一些科学家称小地震可以帮助地球释放压力,并阻止强烈地震的发生。
There are sometimes dust storms that can last for several months. The atmospheric pressure at the surface is only 1% of that on Earth.
有时有沙尘暴可以持续数月。在表面的大气压力只有1%的是地球上。
They evaluate and work to minimize the potential settlement of buildings and other structures that stems from the pressure of their weight on the earth.
他们计算建筑和其他结构由于自重压力可能引起的沉降,并采取措施使之减少到最小。
Electronic data will be transmitted back to Earth to help researchers assess the impact of the flight on human breathing, temperature and blood pressure.
仿生数据会被传送回地球,用来帮助研究人员评估太空飞行对人呼吸,体温以及血压的影响。
The calculation of earth pressure is of Paramount importance in applied Engineering.
土压力的计算是土力学中的一个重要而又古老的课题。
The inner earth pressure of buried cylindrical structure was measured by model test. The variations of inner earth pressure during overturning of cylinder are analyzed.
采用模型试验实测圆筒结构筒内土压力,并对圆筒在倾覆过程中筒内土压力的变化规律进行探讨。
Earth pressure calculation based on upper bound theorem of plasticity can be numerically performed by element integration method.
基于塑性力学上限定理的土压力计算,在数值上可以通过单元集成法来实现。
By considering displacement for calculating circular earth pressure, the maximal earth counterforce formulas for the heading and the latter pipelines are deduced.
采用考虑位移的土压力计算方法计算环向土压力,得出首节管道和后续管节最大土体反力的计算公式。
This system implemented factor demarcation of geological sensor, data measurement of earth pressure in the menu form.
该系统以菜单形式实现地质探头的系数标定、土层压力的测量。
Change of earth pressure, pore water pressure, underground water level, surface deformation, and sub-surface movement all have direct relationship with distance between shield and testing section.
土压力、孔隙水压力、地下水位、地面变形及深层土体移动的变化都跟掘进机与测试断面之间的距离有直接关系。
Fhe active earth pressure for hydraulic structures caused by earthquake is rather complicated. There are some defects in its calculation formula in current seismic design specification.
水工建筑物地震主动动土压力计算较为复杂,在现行《水工建筑物抗震设计规范》中提供的计算公式存在一定缺陷。
One of the theoretical and technical puzzle of deep coal mine design and construction is the computation and prediction of static earth pressure.
深部土静止土压力的计算与预测是煤矿深井建设设计与施工中的理论与技术难题之一。
It has been proved, through field-measured data and model test results, that trench width has much effect on vertical earth pressure on trenched flexible pipes such as steel pipelines.
开槽埋设钢管等柔性管时,开槽宽度对于作用于管道上的竖向土压力有着很大的影响,这已被现场实测和模拟试验结果所验证。
This paper summarizes the study, design and application experience of homemade earth pressure balance shield electric supervision system in order to instruct its exploitation and application.
介绍了国产土压平衡盾构电气监控系统研究、设计和应用的经验,其目的是指导国产盾构电气监控技术的开发和应用。
Shield tunneling method has become a primary method in underground excavation with its predominance, earth pressure balanced shield tunneling (EPBS) is the most universal type in our country.
盾构隧道法开挖凭借自身的优势成为城市地下施工的主要手段,其中土压平衡式盾构目前在国内使用较为普遍。
The rule of earth pressure varying with displacement presented in this paper is well comparable with the results of the finite element analysis.
用该方法描述的土压力随位移的变化规律与有限元法计算结果具有很好的可比性。
The contact pressure and its distribution, the load sharing between piers and the raft are monitored by the installed earth pressure cells at pier-soil and raft-soil interfaces.
根据基底下埋设土压力盒的观测结果,研究了墩-筏基础的工作机理;明确了基底压力及分布;分析了墩与筏基的荷载分配比。
The results of field test indicate that the earth pressure of abutment, different from linear distribution of Coulomb's, acts as parabolic type.
现场测试结果表明,台背土压力大致呈“抛物线型”分布,与库仑土压力理论的线性分布不同。
This paper states types of retaining wall back fill and relevant earth pressure calculation method, which is of direction significance for cast-in-palace construction.
本文对挡土墙填土的种类及相应的土压力计算方法进行了全面论述,对现场施工具有指导意义。
A formula of active earth pressure on retaining wall was proposed which considers the cohesion force on sliding plane and the adhesive force on interface of soil and retaining wall.
考虑滑裂面上填土的粘聚力及填土与墙背接触面上的粘着力,推得了粘性填土挡墙上的主动土压力计算公式。
Earth pressure is the main load on retaining structure, and the calculation of earth pressure on retaining structure is an important aspect in structure design.
土压力是作用在挡土结构上的主要荷载,土压力计算是挡土结构设计的重要内容。
Approximate method was often adopted to calculate the earth pressure under the situation of the specific project.
对于具体工程情况下的土压力计算,常采用近似的方法处理。
And based on the practical foundation pit project of Shanghai, the method of amending coefficient of distribution graphics of earth pressure is presented.
同时,基于上海软土基坑的工程实践,提出了土压力计算的分布图式修正系数法。
From the condition of acceptability, the calculation of lateral earth pressure, and the checking computation of anti-sliding stability, etc.
从适用条件、侧向土压力计算、抗滑移稳定验算等几个方面探讨了扶壁式钢筋混凝土挡土墙的设计。
There are many factors to influence the vertical earth pressure on the reinforced concrete culvert, so it is very difficult for the analysis.
埋设在高等级公路中的钢筋混凝土圆管涵属于上埋式管涵,作用于其上的竖向土压力影响因素繁多,分析极其复杂。
Finally the reduced coefficient of active earth pressure has been analyzed in this paper, which further confirmed the formula rationality.
最后对主动土压力折减系数做了分析,进一步验证了公式的合理性。
When soil spatial restraint is considered, earth pressure is far less than planar earth pressure, which is economical to the retaining wall design.
通过分析说明,土体空间约束后,土压力远小于经典的平面土压力,有利于短挡土墙的经济合理设计。
When soil spatial restraint is considered, earth pressure is far less than planar earth pressure, which is economical to the retaining wall design.
通过分析说明,土体空间约束后,土压力远小于经典的平面土压力,有利于短挡土墙的经济合理设计。
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