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施工损伤
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  construction damage
     A Study on the Performance Test of Construction Damage of Water-proof Layer on Bridge Deck
     桥面防水层施工损伤性能试验研究
短句来源
     Through analyzing the performance requirements about water resistance, layer stability, high or low temperature resistance, construction damage resistance and adaptation to bridge distortion ,the paper has mainly studied the performance methods of the flexible waterproof materials and corresponding evaluation indexes in different conditions.
     通过对桥面防水材料使用环境的调查,本文对材料的不透水性、层间稳定性、耐高低温能力、抗施工损伤能力、适应桥梁变形能力等提出了具体的技术要求,对桥面防水材料的技术性能指标做了详细的分析,针对各种使用状况提出不同的要求。
短句来源
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     Study on the construction trauma performance of the waterproofing layer on the concrete bridge floor
     混凝土桥面防水层施工损伤性能研究
短句来源
     Analyzing the strength property, structural property, longevity and nature of easy to damage in construction, principles of choosing geosynthetics are presented.
     根据多年冻土地区路基特点与环境条件 ,从土工合成材料的强度特性、构造特性、耐久性及抗施工损伤性能等方面 ,提出了土工合成材料选择时的原则 .
短句来源
     Numerical test on staged damage evolution of underground stope in construction
     地下采场动态施工损伤演化的数值试验
短句来源
     Based on inside and outside experiment and construction mechanicscalculation , consider weather area of waterproof layer , waterproofing ratings, the function of anti-hurt in construction and stability of layer combination, put forward systematic design method and recommend the typical asphalt concrete bridge structure with waterproofing layer .
     在室内外试验研究和铺装结构力学计算分析的基础上,综合考虑防水层气候分区与桥面防水分级、防水材料的抗施工损伤性能及铺装结构层间结合稳定性等因素,提出以层间抗剪强度和粘结强度为主要指标、对负弯矩区防水层进行抗变形能力验算的防水系统设计方法,并推荐了设防水层的混凝土桥面典型沥青混凝土铺装结构。
短句来源
     This paper, through analyzing the basis performance, road-use performance and anti-construction performance of waterproofing material, studies working mechanism of waterproofing material.
     本文拟通过分析桥面对防水材料的基本性能要求、路用性能要求和抗施工损伤性能要求,结合桥面防水材料成膜机理、防水机理和与沥青面层、混凝土桥面的粘结工作机理,考虑环保节能的要求,选择水性桥面防水材料作为研发类型材料。
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  相似匹配句对
     Study on the construction trauma performance of the waterproofing layer on the concrete bridge floor
     混凝土桥面防水层施工损伤性能研究
短句来源
     A Study on the Performance Test of Construction Damage of Water-proof Layer on Bridge Deck
     桥面防水层施工损伤性能试验研究
短句来源
     Arch Bridge Construction
     拱桥施工
短句来源
     Plant Construction
     设备施工
短句来源
     Duodenal injuries
     十二指肠损伤
短句来源
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  construction damage
Even if construction damage and degradation are considered, the available strength was still many times larger than the required strength.
      
In addition, removal of the temporary pedestrian bridge at Vesey Street could result in construction damage to the BarclayVesey Building.
      
Symptoms of root problems from construction damage or other detrimental activities may appear one to several years after the damage occurred.
      


Longitudinal cracks and the non-uniform settlements due to complicated causes are two main subgrade troubles in permafrost regions, which are difficult to treat. In this paper, three treatments are presented for the non-uniform settlements, according to their formation. Again, three treatments are presented for the longitudinal cracks, according to their types and classes. Analyzing the strength property, structural property, longevity and nature of easy to damage in construction, principles of choosing geosynthetics...

Longitudinal cracks and the non-uniform settlements due to complicated causes are two main subgrade troubles in permafrost regions, which are difficult to treat. In this paper, three treatments are presented for the non-uniform settlements, according to their formation. Again, three treatments are presented for the longitudinal cracks, according to their types and classes. Analyzing the strength property, structural property, longevity and nature of easy to damage in construction, principles of choosing geosynthetics are presented. Combined with the knowledge in experiment project, construction technology is presented for permafrost regions. At the same time, the key construction technological problem of geosynthetics used in theses regions is also solved in this paper .

纵向裂缝与不均匀变形是多年冻土地区路基病害的主要类型 ,成因复杂 ,久治不愈 .综合国内外现有成果 ,对于路基不均匀变形 ,根据其成因 ,分别提出了土工合成材料处治不均匀变形技术与土工合成材料处治路基阳坡变形技术等处治措施 .对于路基纵向裂缝 ,根据其不同分类与不同严重程度 ,分别提出了土工合成材料处治纵向裂缝技术、柔性枕梁处治技术、边坡分层加筋处治技术等处治措施 ;根据多年冻土地区路基特点与环境条件 ,从土工合成材料的强度特性、构造特性、耐久性及抗施工损伤性能等方面 ,提出了土工合成材料选择时的原则 .结合青藏公路纵向裂缝处治工程 ,研究了土工合成材料处治病害施工技术 ,解决了该地区使用土工合成材料时的工程关键技术

Modeling the effect of blasting-caused damage, anisotropy of rock masses and excavation sequence on deformational behaviour and stability of large-scale underground houses is important in the design and information-oriented construction of the pumped storage power plant. A powerful three-dimensional numerical method that can be applied for that purpose is presented in this paper. The influence of damage caused by blasting and discontinuities in rock masses on the stability of houses is considered by reducing...

Modeling the effect of blasting-caused damage, anisotropy of rock masses and excavation sequence on deformational behaviour and stability of large-scale underground houses is important in the design and information-oriented construction of the pumped storage power plant. A powerful three-dimensional numerical method that can be applied for that purpose is presented in this paper. The influence of damage caused by blasting and discontinuities in rock masses on the stability of houses is considered by reducing the deformation coefficient E of the surrounding rock masses based on the relation to seismic velocity Vp. Numerical simulations of the underground excavation of the Omaru Pumping-up Hydroelectric Power Plant, which is one of the big construction projects in Kyushu island, Japan, were carried out to evaluate the influence of damage caused by blasting and reinforcement by rock bolts on the stability of powerhouses. The damaged range and mechanical properties of rock masses near to the walls of houses are determined by using the back analysis approach in which three lines of the measurement results during the arch part excavation process were used to verify the simulations. Finally, applying the improved model and properties of rocks, the house stability and reinforcement effect of the preliminarily designed support system are also estimated for the safety in the coming several bench excavation process.

提出一种可以综合考虑围岩节理分布特性、爆破施工损伤以及施工过程的新三维快速数值仿真模拟技术,并将其成功地应用于日本宫崎县120×10~4kW蓄能水力发电工程大型地下厂房的信息化施工中。依据多种测试手段,对开挖后围岩的稳定性和变形进行实时监测,并对数值模型进行三维反演分析和修正,比较准确地预测了围岩的动态变化过程,并对支护结构设计的可靠性和合理性进行了详细的论证。

For investigation of the failure mechanism of the HDPE geomembrane on the slope of a newly constructed landfill, which is related to a series of small boreholes during the construction, tensile tests and geotechnical centrifuge model tests are carried out on the intact and damaged HDPE geomembranes as well as their simulants. Four kinds of damages to the HDPE geomembrane are simulated by folding of the membranes, drilling of holes through the membranes, and combination of boreholes and defects remaining on the...

For investigation of the failure mechanism of the HDPE geomembrane on the slope of a newly constructed landfill, which is related to a series of small boreholes during the construction, tensile tests and geotechnical centrifuge model tests are carried out on the intact and damaged HDPE geomembranes as well as their simulants. Four kinds of damages to the HDPE geomembrane are simulated by folding of the membranes, drilling of holes through the membranes, and combination of boreholes and defects remaining on the edge of the samples. It is found from the tensile tests that, when the tension load of the damaged geomembrane reaches its ultimate value, the load drops abruptly, and that the development of the tension strain concentrates in damaged parts. As a result, the ultimate ratio of elongation of the damaged HDPE geomembrane is much less than that of the intact HDPE geomembrane, only about one-tenth. Two preliminary centrifuge tests show that, under the large MSW settlement condition, holes on the simulant geomembrane at the top of the slope move a certain distance from their original positions downward the lined slope, their diameters enlarge twice, and silicone glue begins to be detached from the geomembrane, registering an impending rupture of the damaged geomembrane.

为分析某一现代卫生填埋场边坡上铺设的高密度聚乙烯膜(HDPE膜)因施工损伤而引发的断裂机制,开展了条带拉伸试验和土工离心模型试验.拉伸试验测试了无损膜和4种情形损伤膜试样,发现损伤HDPE膜受力达到峰值强度并被拉长至一定程度后,其拉伸变形不再在整个试样长度范围内均匀发生,而主要集中在受损部位发生,故实测到的损伤膜极限伸长率仅为无损情形时的1/10左右.这一影响实际上改变了HDPE膜的破坏机制,使其由原先的渐进性破坏变成受损后的突发性破坏.两组初步离心模型试验结果发现,在轻质高压缩性的模型MSW作用下,模型膜上的损伤明显扩大,受损部位的拉伸变形十分明显并接近断裂,表明损伤对膜的实际工作性状有很大影响.

 
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