| 1. | The engineering geological conditions of the badong changjiang highway bridge are very complex
摘要巴东长江公路大桥桥址区工程地质条件复杂。 |
| 2. | Placed foundation ' s main function is decreasing load and working time , improving project quality and abbreviating time in the bridges whose condition is very bad
其主要目的是在施工条件恶劣的桥址处即可能地减少水上施工工作量和作业时间，提高工程质量并缩短工期。 |
| 3. | 5 . precast segmental construction can minimize the impact on natural environment and residential community . interference with existing traffic under bridges during construction is significantly reduced
( 5 )对桥址周围自然生态环境破坏小；对桥下现有交通及周边社区环境影响小。 |
| 4. | The method described in this paper may simulate real natural wind at the site of bridge using real wind velocity continuous records in short period and putting aside wind spectrum on the base of simulating merit or demerit , then buffeting response has been analysised
本论文在分析了已有风场模拟方法优缺点的基础上，没有采用已有的风谱，仅用桥址处短期的实际风速时程记录，进而模拟该桥处的实际风场，从而分析桥梁的抖振响应。 |
| 5. | In the light of the bridge engineering application , this paper probes into the technology , effects and prospects of rayleigh wave method in the exploration of large and giant bridge sites and illustrate the feasibility and effectiveness of this method in such exploration
摘要从桥梁工程应用出发，探讨了瑞雷波法在大型特大型桥址勘察中应用的技术方法、实际效果和应用前景，说明了瑞雷波法在大型特大型桥址勘察的可行性与有效性。 |
| 6. | Exemplified by the application of shallow seismic reflected wave technique to the exploration of haicang bridge in xiamen , this paper makes a preliminary discussion on various aspects of the application of shallow seismic reflected wave technique to the exploration of bridge site in water area
摘要结合浅层地震反射波法在厦门海沧大桥勘探中应用，对在水域进行桥址浅层地震反射波法勘探中的各方面作一探讨，浅谈一些认识和体会。 |
| 7. | Based on the study of the engineering geological conditions , using fem method to calculate the baseground stress distribution of bridge pier and analysis the stability of slope under different conditions , such as , reset condition , under the bridge load and affected by the changing reservoir water level
在对桥址区工程地质条件研究的基础上，采用有限元法方法计算了桥荷载施加前后及水库水位变动情况下桥址区斜坡应力分布特征，并对斜坡稳定性进行了分析。 |
| 8. | Based on wind speed observation record with drawback , it is proved that the exponent expressing terrain roughness can be calculated according the monthly maximum wind speed records at various height levels . wind characteristics of bridge site are determined by statistical method
针对桥址区风速观测记录的特点，证明了利用不同高度处月最大风速记录推算地表粗糙度影响系数的可行性，并对通过最小二乘拟合得到的地表粗糙度影响系数进行统计分析，最终确定桥址区风特性。 |
| 9. | According to the result of physical modeling , the regression equation about the decrement of tidal bore height , the percentage of water - resisting area and the distance away from the upstream bridge site is constructed in this paper , the regression equation can be applied in the impact which bridge has on the tidal bore height in qiangtang esturary
根据模型试验结果，建立了涌潮高度的减小值与中潮位桥墩阻水面积百分比和上游离桥址距离的多元回归方程，可供钱塘江河口建桥对涌潮高度的影响计算参考使用。 |
| 10. | It is local impact that bridge being built has on the shape of tidal bore , and this local impact can be recovered in the place which is 300 - 500 long upstream bridge . the impact that bridge being built has on the intensity of tidal bore depends on the water - resisting area of bridge . generally the more water - resisting area is and the nearer the place is away from the bridge site , the more impact is on the intensity of tidal bore
建桥对涌潮形态的影响是局部的，在桥上游300m 500m的范围内基本可以得到恢复；建桥对涌潮强度的影响主要取决于桥墩阻水面积，一般来讲，阻水面积越大，位置离桥址越近，对涌潮强度的影响亦越大。 |
