查询词典 pier foundation

According to the model test of a bridge pier with pile foundations, it is found that the Clough hysteretic model can be used to simulate the hysteretic behavior of the foundation systems.

在桩基础桥墩滞回特性的模型试验基础上，提出了用Clough模型模拟基础的恢复力特性。

To resolve the design difficulties caused by small cross-section, low height of the bridge structure, the key technique problem to the bridge structure should be carried on research and analysis, such as whole calculation model, considering foundation combined action , the reasonable rigidity match to the joint of the girder and pier ,inner force redistribution caused by the system conversion ,the forecast to long-term deformation after building , stress analysis and tectonic steel bar of the anchored serration block , the influence of foundation settlement and anti- earthquake measures . To acquire feasible and reasonable technique parameters and provide the full design basis, according to analytical results adjust and optimize the bridge structure design.

为解决桥梁结构要求截面小，高度低等带来的设计困难，需对该结构的关键技术问题如考虑基础共同作用的整体计算模型、梁墩间的合理刚度匹配、体系转换产生的内力重分布、成桥后的长期变形预测、锚下锯齿块应力分析及配筋构造、基础沉降影响及抗震措施等进行研究分析，以获得技术可行、经济合理的技术参数，为设计提供充分的依据，根据分析结果调整优化桥梁结构设计。

The aseismic control for pile-foundation bridges considering soil-structure-interaction was studied. There are two problems were solved:(1) The coefficient matrix is singularity because the elements of rotational degree in mass matrix equal to zero due to the flexiblity of the pier.(2) The iteration of control gain was not convergent because the dumped mass of the beam is very large comparing with that of the pier.

为将Smith[162]方法用于桥梁结构，本文解决了如下两个问题：(1)以弯曲变形为主的桥梁结构，其质量矩阵中相应于转动自由度的元素数值为零，由此导致等效固基模型中的系数矩阵奇异；(2)桥梁结构堆聚到顶部节点的梁体质量很大，由于质量分布不均匀导致控制增益的迭代计算不收敛。

In order to analyze vertical bearing behavior of belled pier foundation, three groups of project examples of belled pier in different engineering geological conditions are chosen.

为分析扩底墩基础的竖向承载性状，本文选取了三组不同工程地质条件下的扩底墩基础工程实例，分别建立了扩底墩墩土接触三维非线性有限元数值模型，可以发现计算与实测结果基本吻合。

The superstructure uses the standard drawing, the substructure has used the gravity T-shape abutment and the rectangular buttress, in the design carries on the size to the abutment and the bridge pier to draw up, simultaneously satisfies the design the principle, the abutment uses 9.3m, in satisfies the structure and under the operation requirements premise, the abutment uses 9.3m to be long, because the geological condition decided, the pillar body uses 12m to be high, the open excavation foundation, the process load computation and the load combination, has carried on the bridge abutment and the pillar bottom section stress separately to the abutment and the bridge pier examines calculated, examines calculated the result conforms to the standard requirement, the bridge span uses the straight line build, and established this bridge construction organization plan, including the engineering project characteristic, the construction plan, the job practice, the bridge building construction technology, the measure has drawn up the top cap and the tray structure and matches the muscle chart, finally has drawn up Shui Xigou the bridge overall and the horizontal plan.

上部结构采用标准图，下部结构采用了重力式T 形桥台和矩形桥墩，设计中对桥台和桥墩进行了尺寸拟定，在满足构造和使用要求的前提下，桥台采用9.3m长，由于地质条件决定，墩身采用12m高，明挖基础，经过荷载计算和荷载组合，对桥台和桥墩分别进行了台底和墩底截面应力的检算，检算结果符合规范要求，桥跨采用直线布设，并且编制了该桥的施工组织设计，其中有工程项目的特征、施工方案、施工方法、桥梁工程施工技术，措施绘制了顶帽及托盘构造及配筋图，最后绘制了水溪沟大桥的总体及平面图。

The superstructure uses the standard drawing, the substructure has used the gravity T-shape abutment and the rectangular buttress, in the design carries on the size to the abutment and the bridge pier to draw up, simultaneously satisfies the design the principle, the abutment uses 9.3m, in satisfies the structure and under the operation requirements premise, the abutment uses 9.3m to be long, because the geological condition decided, the pillar body uses 12m to be high, the open excavation foundation, the process load computation and the load combination, has carried on the bridge abutment and the pillar bottom section stress separately to the abutment and the bridge pier examines calculated, examines calculated the result conforms to the standard requirement, the bridge span uses the straight line build, and established this bridge construction organization plan, including the engineering project characteristic, the construction plan, the job practice, the bridge building construction technology, the measure has drawn up the top cap and the tray structure and matches the muscle chart, finally has drawn up Shui Xigou the bridge overall and the horizontal plan.

内昆铁路水溪沟大桥，中心里程为DK608+393.00，该桥的设计方案有三个，通过技术、经济比较，采用4×32m预应力混凝土简支梁桥方案，桥梁全长149.5m，I级单线铁路，设计时速为120km/h，设计荷载为中活载。上部结构采用标准图，下部结构采用了重力式T 形桥台和矩形桥墩，设计中对桥台和桥墩进行了尺寸拟定，在满足构造和使用要求的前提下，桥台采用9.3m长，由于地质条件决定，墩身采用12m高，明挖基础，经过荷载计算和荷载组合，对桥台和桥墩分别进行了台底和墩底截面应力的检算，检算结果符合规范要求，桥跨采用直线布设，并且编制了该桥的施工组织设计，其中有工程项目的特征、施工方案、施工方法、桥梁工程施工技术，措施绘制了顶帽及托盘构造及配筋图，最后绘制了水溪沟大桥的总体及平面图。

Geotechnical engineering software FLAC-3D was used to analyze and simulate Zhuchang river special bridge 4~# main pier foundation deformation and stability of slope rock mass under the condition of nature,construction of pile and carry,consolidation of anchor bar and existing design load.

利用岩土工程软件FLAC-3D对朱昌河特大桥4#主墩基础边坡岩体在自然条件下，桩及承台施工过程、锚杆加固过程以及施加设计荷载状态下的变形及稳定性进行了三维数值模拟分析。

The substructure uses the distyle bridge pier, the pillar foundation is a pile foundation.

下部结构采用双柱式桥墩，墩基础为桩基础。

A finite element numerical model for arch dam-gravity pier-foundation system was established to evaluate the effect of high gravity piers on the stress, deformation and anti-sliding stability of Sizhai arch dam, taking the following factors into account, such as the possible elastoplastic deformation of foundation rocks and the nonlinear interaction between the interfaces of gravity pier-dam foundation, the joint surfaces beneath the right bank, and the interfaces of arch dam-gravity pier.

摘要为评价高重力墩对四寨拱坝的应力变形和抗滑安全的影响，建立了拱坝－重力墩－地基系统的有限元数值模型，其中考虑重力墩－基础、右岸夹层和拱坝－重力墩等交界面的非线性相互作用，以及基岩材料的弹塑性变形行为。

On the basis of the algorithm of BP neural network,the network's excitation function has been improved, and an ANN-based Seismic Response recognising system for pile foundation bridge pier has been developed according to the characters of the seismic response of the pier.

在原BP神经网络基本算法的基础上，按研究桩基桥墩地震响应的特点，改进了网络的激励函数，开发了适用于桩基桥墩地震响应的神经网络辨识系统。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。