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seismic effect     
相关语句
  地震效应
     EVALUATION OF BLAST SEISMIC EFFECT BASED ON WAVELET ANALYSIS
     基于小波分析的爆破地震效应评估
短句来源
     The Experimental Study on Seismic Effect of Explosion in Alluvial Soil
     冲积土中爆炸地震效应的实验研究
     AN APPLICATION OF THEORY OF ONE DIMENSlON STRESS WAVEIN STUDY ON SEISMIC EFFECT FROM BLASTING
     一维应力波理论在爆破地震效应研究中的应用
短句来源
     Influence of Blasting Delay Time on Seismic Effect
     爆破时差对地震效应的影响
短句来源
     THE NORMAL VARIATION OF RADON IN GROUND-WATER AT THE WELL OF NO. ZK-03 AND SEISMIC EFFECT IN NINGBO,ZHEJIANG PROVINCE
     浙江宁波ZK—03井水氡正常变化和地震效应
短句来源
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  地震作用
     B Spline Function Finite Element Equations in the Seismic Effect of Soil
     土体地震作用效应的B阶样条有限元方程
短句来源
     Calculation formula of load capacity failure of corroding structures under seismic effect with random intensity and definite intensity are given.
     给出了在随机烈度和确定烈度地震作用下,受腐蚀结构承载能力失效的概率计算公式.
短句来源
     The author supposes that the seismic effect of the equipment having vibration period could be defined with the responsive spectrum theory.
     设想对具有振动周期设备,通过反应谱理论来确定地震作用
短句来源
     If the equipment vibration period is hard to get,we could use the static force seismic coefficient theory to define the seismic effect to ensure the equal safety of the equipment and building.
     对周期确定较难的设备,通过静力地震系数法,确定地震作用,以求设备与建(构)筑物处于同等安全度。
短句来源
     Importance of the Vertical Seismic Effect
     竖向地震作用的重要性
短句来源
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  地震影响
     The result suggest that the basic intensity is 7. 3 degree while the given period is 50 years and the probability of exceedance is 0. 1. Accordingly the coefficient ofmaximum seismic effect is 0. 158 which could be the basic parameter for seismic design.
     计算表明,在给定50年工程期限,超越概率为10%时的场地烈度为7.3,相应最大地震影响系数为0.158。
短句来源
     The paper deals with characteristics of seismic response of prestressed concrete structures,and some problems related to damping modification factor formulas of response spectrum and seismic effect coefficient curve of prestressed concrete structure under the horizontal seismic action are studied.
     本文研究预应力混凝土结构地震反应的特点 ,探讨了反应谱的阻尼修正公式及确定预应力混凝土结构水平地震作用的地震影响系数曲线问题
短句来源
     Fundamental principles are introduced concerning highway landslide's control, selection of preventing engineerings, calculation of landslide propulsive force, seismic effect and optimized design of repel-slip pile.
     论述了公路滑坡治理的基本原则、防护工程的选择、滑坡推力计算、地震影响以及抗滑桩优化设计等问题
短句来源
     Through making use of tie probability calculation method of seismic hazard analyses, transcendental probability of the seismic effect intensity and ground acceleration for Sandoupin dam site in different periods were obeained.
     并对三峡工程三斗坪坝址进行了地震危险性分析,给出了三斗坪坝址不同期限内的地震影响烈度和峰值地面加速度的超越概率。
短句来源
     The level of seismic effect and earthquake risk is rather low, and far intense earthquake can not be a main geological problem with engineerng projects in Wuhan area, but the earthquake resistance measures must be considerded in constructing urban lifeline and superior buildings.
     虽然武汉市地震影响及地震危险性的水平较低 ,强震也不是武汉市工程地质环境的主要问题 ,但在城市生命线工程和高层超高层建筑方面必须考虑单体抗震设防。
短句来源
更多       
  地震作用效应
     B Spline Function Finite Element Equations in the Seismic Effect of Soil
     土体地震作用效应的B阶样条有限元方程
短句来源
     The influences of construction site classification on seismic effect
     建筑场地类别对地震作用效应的影响
短句来源
     This paper introduces the site classification fo r construction and variation of seismic effect of the building calculated with d ifferent characteristic periods. Combined with practical work the important role s of characteristic period in seismic action calculation are emphasized.
     介绍了建筑场地的类别划分方法 ,以及同一建筑在选用不同特征周期计算时地震作用效应的变化 ,结合具体工程实例的测算 ,提出了特征周期是地震计算作用中的重要参数。
短句来源

 

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      seismic effect
    A relationship corresponding to maximum attenuation of the seismic effect is established between the elastic modulus and coefficient of viscosity of the soil.
          
    Seismic Effect Produced by Detonation of Air-Fuel Mixture in a Borehole
          
    Characteristic features of the seismic effect of massive blasting in highly stressed block masses
          
    Seismic effect of explosive loads, taking account of inelastic soil deformation
          
    Operational method of estimating the seismic effect of blasting
          
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    For increasing the period of the vibrograph a capacitor is connected in parallel with its sensor coil as suggested by H. Benioff for increasing the natural period of an electromagnetic seismometer. Further, a capasitor and a resistor in series are paralleled with the recording galvanometer for increasing its period and improving the frequency characteristics of the vibrometer-galvanometer combination, so that a bandwidth of 3 decades can be obtained. Results of numerical computation agree with actual calibration...

    For increasing the period of the vibrograph a capacitor is connected in parallel with its sensor coil as suggested by H. Benioff for increasing the natural period of an electromagnetic seismometer. Further, a capasitor and a resistor in series are paralleled with the recording galvanometer for increasing its period and improving the frequency characteristics of the vibrometer-galvanometer combination, so that a bandwidth of 3 decades can be obtained. Results of numerical computation agree with actual calibration tests and field observations.The vibrograph can be used for observing seismic effects of explosions and measuring vibrations in engineering and construction work. The largest displacement that can be recorded is one meter. The bandwidth is from about 0.2 Hz to 200 Hz.

    作者把H.Benioff提出的电磁式地震计用并联电容增长固有周期的方法用到强震仪的设计中,并提出用电流计并联电阻-电容增长电流计固有周期和对整个仪器频率特性进行校正的设计方法,获得了将近三个十倍频程的带宽。标定实验和野外观测结果与理论计算相符。 该仪器可用于爆炸地震效应观测和工程结构振动测量。最大可记录位移1米,频带宽度约为0.2赫到200赫。

    In view of the differences between microscopic and macroscopic liquefaction of soils, and many unsolved problems in taking undisturbed sand samples, running laboratory testings etc., the author tries to explore some new ways for evaluating liquefaction potential by macroscopic approach to the occurance criteria and development of soil liquefaction. This paper presents some results of such work which can be used in association with the laboratory analysis so as to make further reliable assessment of liquefaction...

    In view of the differences between microscopic and macroscopic liquefaction of soils, and many unsolved problems in taking undisturbed sand samples, running laboratory testings etc., the author tries to explore some new ways for evaluating liquefaction potential by macroscopic approach to the occurance criteria and development of soil liquefaction. This paper presents some results of such work which can be used in association with the laboratory analysis so as to make further reliable assessment of liquefaction potential and its seismic effect.

    鉴于微观液化与宏观液化并不能等同,且在采取原状砂样进行室内液化试验方面还有许多无法解决的问题,本文试图从宏观现象着手研究液化的发生与发展,以探索在工程实践中评价液化势的新途径。文中提出的一些宏观研究结果,可与室内微观试验方法相辅相成,综合判定液化势及其震害效应。

    In this paper,a systematic discussion of the effect of a number of blast-ing parameters including charge diameter, drill-pattern and millisecond delay intervals has been presented. This is based on a variety of pilot tests undertaken nearly 100 times on the benches in Teh-xing open-pit copper mine for single hole craters, primary bench-holes, single-and double-row milli-second blasting as well as on laboratory tests for simulation blasting. By means of test data comprehension and analyses, it is proposed that...

    In this paper,a systematic discussion of the effect of a number of blast-ing parameters including charge diameter, drill-pattern and millisecond delay intervals has been presented. This is based on a variety of pilot tests undertaken nearly 100 times on the benches in Teh-xing open-pit copper mine for single hole craters, primary bench-holes, single-and double-row milli-second blasting as well as on laboratory tests for simulation blasting. By means of test data comprehension and analyses, it is proposed that the rock fragmentation is chiefly dependent upon the average burden of the charge. With a smaller burden, the probability of shear failure in the rock mass increases, resulting in better rock fragmentation. This is interpreted by trial with a mathematically analytical approach. Based on the results obtained from high-speed photography and seismic effect measurement, a criterion for delay interval determination and its calculating formula are also recom-mended.

    本文根据在德兴铜矿露天台阶上进行的近百次单孔漏斗、台阶单孔、单排孔和双排孔微差爆破等各类小型试验结果及实验室模拟爆破的部分成果,就药包直径、孔网参数和微差间隔时间等爆破参数对矿岩破碎的影响作了较系统的探讨。通过对试验资料的整理分析,指出矿岩破碎程度取决于药包平均抵抗线,并试用数学解析法解释采用小抵抗线爆破时岩体内剪断破坏几率增多、导致矿岩破碎质量改善的原因,本文还根据高速摄影和测震结果,提出了选定合理间隔时间的原则及其计算公式。

     
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