| 1. | Penetration probability of stiffened plate - grid under shock loading
冲击载荷作用下加筋板架破坏概率分析 |
| 2. | This probability will correct for the under or over conservatism of the true probability by the calculated reliability index
这种破坏概率将校正高估或低估了的计算破坏概率。 |
| 3. | This presentation will describe a procedure to model probabilistically the deteriorating effect on the failure probability with time
本讲座将介绍一种能够概率模拟破坏概率随时间变化的这类衰退效应的方法。 |
| 4. | At the same time , the previous global estimate of failure probability can serve as additional prior information to yield the overall calibrated probability
同时，先前估计的全局破坏概率，能够用作额外的先验信息，来给出全部校准的破坏概率。 |
| 5. | Constant annual failure probabilities that are commonly used in practice to evaluate reliability of a slope over a given expected service period may not be capable of capturing the deteriorating characteristics of slopes
实际中，普遍使用的评价给定服务期内的边坡可靠性的，并作为常数的年破坏概率，不能够反映边坡衰退特征。 |
| 6. | The principle and method of probability analysis of slope failures are discussed . the probability analysis of yudonghe landslide is exemplified . and the stability function used this slope is also performed
综述了边坡破坏概率分析的基本原理和实施方法，以渔洞河滑坡为例，进行了滑坡体的破坏概率分析，并以此为基础建立了边坡稳定预测方程。 |
| 7. | A procedure is further introduced to assess the uncertainty associated with the calibrated probability , resulting from various factors including the assumed probabilistic models and the availability of performance records for calibration
之后，进一步提供了一种方法，用于评价了与校准破坏概率有关的不确定性，这种不确定性来源于所假定的概率模型、数据的充分性等因素。 |
| 8. | ( 4 ) the stress level , stress ratio , loading frequency and failure probability , which determine the fatigue life of concrete , are served as the input of the neural network while the fatigue life as output . the nonlinear relations of them are described wih the structure of neural network
( 4 )把决定混凝土疲劳寿命的应力水平、应力比、加载频率和破坏概率作为神经网络的输入，以疲劳寿命作为网络的输出，用网络结构描述它们之间的非线性关系。 |
| 9. | The foundation engineering is typical in both excavation depth and scale , on the basis of in - situ investigation , the design optimistic of retaining wall was discussioned in this paper , the mian reseaches including : the using of fem optimazition methods of rods system ; the delvopment of programs for optimazition of imbedding depth of structure based on matlab and for whole design optimaziton of the retaining structures based on ansys , under the two controlling factors of the saft coefficient and the reliability probability about the whole damage of retaining atructure ; the analysis on the m index of soil , the depth of retaining structures imbedded in the rock and the overall optimistic design of retaining structures
该基础工程不论在开挖深度还是规模上都很具有代表性。作者在现场调研的基础上，探讨了基坑支护结构设计优化问题。主要研究内容可以归纳为：应用基于m法的弹性地基梁杆系有限元方法；在围护结构整体稳定性安全系数与可靠性破坏概率两种控制因素下，编写了嵌岩深度优化的matlab程序与围护结构整体设计优化的ansys批处理程序；进行了地层抗力比例系数反算、地下连续墙嵌岩深度优化与地下连续墙结构体系整体设计优化。 |
| 10. | Researching on the technology if reverse order is to study strains if pits , structural systems if basement , environmental surwey and underpinnings . on account of emphasizing developing methods if checking strength if pick - ets , modemizing machenes of excavation and studying methods of underpinning is put forward and is a way if controlling the quality of pickets in sites , which leads an active effect ; synthetic application if rankintheory , spatial and time effect theory to excavation tl aanalyze the state of soil force and strain is brought forward and the time effect should be considered in the zone of clay , the formation and development of soil plasticity are analyzed and the most dangerous zone to decide how to excavate and where to begin is found ; analyzing the cause of picket settlement during reverse order and the differential settlement and discussing hlw to solute it . duringh the temporary survey and the environmental warship , bringing rorward the theory of environmental vibration and analyzing the state of soil force and probability of losing stabilization of soil under the effect of environmental vibration ; analyzing the state offeree in underground concrete wall by the method of mathematics and pointing out the place of the maximum force and deformation . based on systematic illustrating the reverse order , problems about application and development of reverse order and suggestions also are expressed
鉴于国内外的研究把重点放在大力发展工程桩的实验室承载力监测方法与设备、如何使土方开挖机械现代化及对周围建筑的临测方法上，本文提出了现场利用声波层析成像技术监测钢砼桩内部质量的方法与程序，并得出了声波层析成像技术是砼桩的动态质量检测的有效手段，这对指导施有积极、现实意义；提出了综合运用朗肯土压力理论、基坑空间和时间效应影响理论来分析逆作法施工过程中基坑边坡土体应力及应变的变化情况，指出粘土地区也应考虑时间效应，并且进一步分析了基坑边坡土体的塑性区形成和发展，找出边坡最不利的区域，以确定地下室土体的挖掘的方式和顺序，指出凭主观臆断与经验来施工是不可取的；在分析、经较逆作法与大开挖顺作法的地下室结构体系受力情况及施工顺序的不同，提出了节点处理技术；分析了逆作法施工期间桩的沉降变化原因及由此而产生的差异，并探讨了解决的方法；本文还提出了环境振动对土体边坡稳定产生影响的观点，并分析了在环境振动影响下，土体的应力状态及土休失稳破坏概率，并且还运用弹性力学知识和数学分析的方法定量地分析了地下混凝土墙受力状态，指出了被监测墙体的最大应力、应变位置。 |
