查询词典 construction freezing method

Combining the study characteristic and the current construction method of the bi-arch tunnel in domastic and aboard, the paper deeply study the middle heading construction method and the benching tunneling construction method.

结合目前国内外对双连拱隧道的研究特点以及国内外对双连拱隧道施工方法的现状，本文针对中导洞施工左右主洞不同步开挖和理想的同步开挖法进行了较为深入的研究工作。

Application shield driving method for box jacking construction in underpass of freeways has many advantages,such as without traffic interruption,unlimited distance,safe construction,little restricted by geological condition,lower construction price and shorter construction period,so,it has much value to popularize.

盾构法在下穿高速公路箱涵顶进施工中，具有不中断通行、不限跨径、施工安全、地质条件受限制小以及工程造价低、缩短施工周期等优点，因此具有很好的推广价值。

The conception which is highway project's Environment-Supervision during its construction is brought forward. The institutions of the highway Environment-Supervision in construction time is established, which adopts to our country basis construction procedure, the system of the highway Environment-Supervision's method is discussed,which includes technical means , economical means means of Public Participation, On-the-spot management means and so on. It is studied in a deepgoing way, which is the process of quantity of highway project's Environment -Supervision in period of construction, a series of index is conceived.Environment-Supervision is applied to all single projects ,such as road bed project, road surface projects, bridge- culvert projects, tunnel projects, virescence projects. which provide basal information for establishing Road Environment-Supervision criterion and enchiridion.

提出了建设项目环境监理的概念，初步建立了适合于我国公路基本建设程序的组织机构体系；探讨了公路施工期环境监理实施技术方法体系，包括技术手段、经济手段，公众参与手段、现场管理手段等；并对公路建设项目施工期环境监理量化进行了研究，构建了一系列环境监理控制指标；结合路基工程、路面工程、桥涵工程、隧道工程、绿化工程、环保单项工程等施工过程中环境监理的实施，为将来制定公路施工期环境监理实施细则，或编写环境监理规范提供基础资料。

The conception which is highway project"s Environment-Supervision during its construction is brought forward. The institutions of the highway Environment-Supervision in construction time is established, which adopts to our country basis construction procedure, the system of the highway Environment-Supervision"s method is discussed,which includes technical means , economical means means of Public Participation, On-the-spot management means and so on. It is studied in a deepgoing way, which is the process of quantity of highway projects Environment -Supervision in period of construction, a series of index is conceived.Environment-Supervision is applied to all single projects ,such as road bed project, road surface projects, bridge- culvert projects, tunnel projects, virescence projects. which provide basal information for establishing Road Environment-Supervision criterion and enchiridion.

提出了建设项目环境监理的概念，初步建立了适合于我国公路基本建设程序的组织机构体系；探讨了公路施工期环境监理实施技术方法体系，包括技术手段、经济手段，公众参与手段、现场管理手段等；并对公路建设项目施工期环境监理量化进行了研究，构建了一系列环境监理控制指标；结合路基工程、路面工程、桥涵工程、隧道工程、绿化工程、环保单项工程等施工过程中环境监理的实施，为将来制定公路施工期环境监理实施细则，或编写环境监理规范提供基础资料。

Construction methods of large-span reticulated cylindrical shell are studied in this paper, based on variety of existing spacial structure construction methods. A new type of construction method that the structure is formed integrally by sliding support is bring forward in literature [1]. Construction process run-after computation is conducted by Ansys program, and a new type of hinged joint is obtained.

本文在概括总结了现有的各种空间结构施工方法的基础上，着重研究了大跨度柱面网壳结构的施工技术，对文献[1]提出的新施工方法——柱面网壳支座水平滑移结构整体成形施工法进行了施工全过程的跟踪模拟和结构内力分析，给出了具体施工实施方法，并提出了一种可单自由度转动的新型铰接节点。

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

According to the construction course and finished dead state of the inclined tower cable-stayed bridge without back stay at Tongling Road in Hefei and combining the modern theory and method of the bridge construction control mentioned in this paper, established a space model by large-scale general finite element software ANSYS. It can obtain some valuable result by emulating analysis of the bridge which is under the construction course and finished dead state. It can provide an instruction for the Tongling Road bridge with the result and construction job site monitoring data.

文中根据合肥市铜陵路预应力混凝土无背索斜塔斜拉桥的具体施工过程和成桥状态，结合文中介绍的现代桥梁施工控制理论和方法，运用大型通用有限元软件ANSYS建立了三维空间模型，对该桥进行了施工过程和成桥状态下的结构仿真模拟分析，将模拟计算结果与施工现场振动频率法索力测试数据和分析结果相结合，为铜陵路无背索斜塔斜拉桥拉索张拉施工提供指导，及时调控，确保了该桥在成桥后线形美观，受力性能满足要求。

Based on the differences between the design value and the survey of the bridge deck elevation in constructing the pre-stressed and so on working condition, the model parameters are identified by ANN, and the beam camber of different sections are given. The results demonstrated that the ANN is efficient and the theoretical results fit well with that of forecasting the beam camber in construction.In this thesis, aim to the beam axis shape be exactitude for design, the internal force of the beam be appeased by design request, the concept of modem cybernetics is applied, At the same time, the effecting parameter has collected. The paper build the ANN model in predicting the beam camber an construction and discuss indetail the extraction of inputting nodes information when quoting the fundamental principle of ANN model and introducing research process of the improved BNN. According to them, ANN is applied in the construction control of prestressed concrete continuous bridge. It is successful for used in the No. 4 bridge of Xiangfan bridge over-crossing Hanriver brideg. To predict the construction camber of by ANN method is useful and effective.

本文以大桥成桥线形满足设计要求和成桥内力控制在设计容许范围内为目的，运用现代控制理论的思想，引用神经网络基本原理，详细介绍BP神经网络的研究过程，从而建立预应力混凝土连续梁桥施工预拱度的神经网络模型，并详细讨论了模型的神经网络结点信息的提取，在工程实例的基础上进行了数值计武汉理工大学硕士学位论文算，数值表明，将神经网络应用于预应力混凝土连续梁桥施工控制，获得了满意的结果，在预应力混凝土连续梁桥施工控制技术研究方面，具有方便有效、精度高的优点，具有良好的应用前景。

This article has analyzed the construction supply chain partner latent driving influence, the definition and the applicable scope as well as introducing some elementary theories about the construction supply chain. Then it has established the index system of selecting supplier partner in construction supply chain, In this foundation it has analyzed the present stage construction supply chain partner choice method, and brings forward the supplier selection of supply chain management on the basis theory of gray relevancy model.

本文先介绍了关于建筑供应链管理的一些基本理论，提出了基于总承包商的建筑供应链合作伙伴的定义，并分析了建筑供应链合作伙伴的潜在驱动力、定义及适用范围，然后建立了建筑供应链合作伙伴评价指标体系，在此基础上分析了现阶段建筑供应链合作伙伴的选择方法，并提出了基于灰色关联度来选择建筑供应链合作伙伴的模型。

During the period of construction by the cantilever erection construction method, bridge experiences not only the process of generating girder in the stage of T rigid frame, but also the process of system transformation, so bridge has experienced a great complex stress process, in order to ensure the security of bridge during the whole stage of construction, the stress control and geometry control must be made during the stage of construction of bridge.

近些年来，我国随着经济的快速增长，出现了建造大跨度桥梁的高潮，预应力混凝土技术的迅速推广应用以及建造预应力混凝土连续梁桥的各种先进施工方法应运而生，加快了桥梁的施工进度，使得预应力混凝土连续梁桥的跨越能力不断增大，悬臂拼装施工方法就是在这种背景下产生并发展起来的。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。