Some effective measures have been taken in the placement of concrete to control the occurrence of crack and to ensure the construction quality and appearance quality.
混凝土的浇筑采取了有效的施工措施，控制了裂缝的产生，保证了混凝土施工质量及表面外观质量。
In this paper, an abstract mixed problem of a class parabolic differential equations is generalized from the dam body temperature during the stratified placement of concrete dam.
本文从混凝土坝分层浇筑坝体温度的实际问题中，抽象出一类抛物偏微分方程组的混合问题，并且证明了其广义解的存在唯一。
The horizontal construction joint treatment of Ertan Arch dam concrete, concrete placement of dam base and connection efficiency examination between concrete joints and concrete with dam base.
介绍了二滩拱坝混凝土水平施工缝处理及坝基面混凝土浇筑和检查混凝土缝间、混凝土与坝基结合的效果。
Traditional concrete placement method can not meet the construction quality requirement of sharp slope concrete roofing.
传统的混凝土浇筑施工方法已不能满足大坡比混凝土屋面施工质量要求。
And steel member placement, steel bar tying, concrete casting is critical to the quality of steel skeleton concrete structure.
钢构件安装精度控制、钢筋绑扎及混凝土浇筑是钢骨混凝土结构质量保证的关键。
The items of the quality testing were included the viscosity of recycling asphalt, asphalt content of reclaimed asphalt concrete materials, compaction, surface smoothness and placement temperature.
再生沥青混凝土质量检验项目包括再生沥青的黏度、刨除料含油量、压实度、路面平坦度与施工温度等。
Concrete placement is an important part of project construction which is the key issue for ensuring the reinforced concrete structure quality.
混凝土浇筑是工程建设的重要环节，是保证钢筋混凝土结构质量的关键问题之一。
But, concrete placement temperature, surrounding temperature and the heat of hydration of cement, they take a more affection on lining thermal stress.
混凝土的浇筑温度、环境温度以及水泥水化热对温度应力的影响十分显著。
The intensity of concrete aggregates production changes with that of concrete placement during construction of a concrete dam.
混凝土坝施工过程混凝土浇筑强度变化，其骨料生产强度也应随之。
The concrete placement of lateral wall adopted stiff, large and leveling suspension form works in order to ensure the quality and easy handling.
洞身边墙混凝土浇筑采用刚度大、大块及表面平整度好的多卡悬臂模板，能保证质量、使用灵活、有利于赶工。
The core wall of asphalt concrete with placement was applied to low clam.
浇筑式沥青混凝土心墙多用于低坝，易于施工。
The paper presents various temperature control measures taken in ground concrete placement at permanent lock of Three Gorges Project during summer construction of 1999 .
介绍了三峡工程永久船闸地面混凝土在1999年夏季施工中所进行的各种温控措施。
This article deals with construction technology and measures for rigid frame, formwork, location control and concrete placement of big-slope as-cast concrete mega-column.
介绍大斜率变截面清水混凝土巨型柱的劲性构架、模板、钢筋定位控制和混凝土浇筑的施工技术措施。
And steel member placement, steel bar tying, concrete casting is critical to the quality of steel skeleton concrete structure.
钢构件安装精度控制、筋绑扎及混凝土浇筑是钢骨混凝土结构质量保证的关键。
The ultrasonic detection of steel-tube concrete is a method to detect the quality of concrete placement within a steel tube.
钢管混凝土超声波检测是检测钢管内混凝土灌注的质量。
The aggregate production systems at the Three Gorges project, should meet requirements for the concrete placement of stage -I works, with a huge volume and a long construction duration.
三峡工程第二阶段混凝土浇筑量大且持续时间长，混凝土骨料生产供应必须满足混凝土浇筑的要求。
The Design Institute of the Changjiang Water Resources Commission conducted a monographic study on concrete placement in restrained zones of the dam foundation in the hot season of the year 1999.
长江委设计院对1999年高温季节浇筑大坝基础约束区混凝土进行了专题研究。
In a still more concrete manner, the problem of siting or placement arises for mankind in terms of demography.
更加具体的来说，选址和定位问题出现在对人类的人口统计学方面。
Construction design and construction of trestle main beam and platform concrete placement by using steel truss are mainly described for reference to the similar projects.
重点介绍了利用桁架浇筑排架柱主梁及平台的设计和施工，可供同类型工程参考。
The road works shall be done in two steps. First step: road bed construction, manual placement of block stones and dry pressing of crushed stones and reserved concrete layer;
道路工程分为二步进行，第一步：施工路基、手摆块石及干压碎石，预留混凝土层；
The road works shall be done in two steps. First step: road bed construction, manual placement of block stones and dry pressing of crushed stones and reserved concrete layer;
道路工程分为二步进行，第一步：施工路基、手摆块石及干压碎石，预留混凝土层；
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