CAJ | 학술논문

顶部开口半敞开式隧道采用自然通风的模式具有广阔的应用前景，为了研究它的防排烟性能，需要开展一系列试验，模拟试验是验证隧道防排烟性能的一个重要途径。为了实现顶部开口最优化分析的目的，需要使顶部开口宽度、高度、组间距、开口个数等参数易于变化。为此提出了三套模型设计方案，并分析了每套方案存在的优点及其局限性。针对1∶10缩比例半敞开式隧道模型进行了设计和优化，最终确定了模型的设计形式，并针对选择的模型设计方案提出了模型制作的选材要求，以期为后续火灾模型试验提供良好的试验平台。
정부개구반창개식수도채용자연통풍적모식구유엄활적응용전경，위료연구타적방배연성능，수요개전일계렬시험，모의시험시험증수도방배연성능적일개중요도경。위료실현정부개구최우화분석적목적，수요사정부개구관도、고도、조간거、개구개수등삼수역우변화。위차제출료삼투모형설계방안，병분석료매투방안존재적우점급기국한성。침대1∶10축비례반창개식수도모형진행료설계화우화，최종학정료모형적설계형식，병침대선택적모형설계방안제출료모형제작적선재요구，이기위후속화재모형시험제공량호적시험평태。
The tunnel with openings on roof with natural ventilation mode has broad application prospects,a series of experiments need to be carried out in order to study its smoke evacuation function, and simulation experiment is an important way to solve this problem.In order to achieve the purpose of optimization of the top openings,the top openings’width,height,spacing between each of the two opening groups and the number of opening groups need to be changed easily.Three sets of model design projects are presented.The advantages and limitations of each one are analyzed.The tunnel with openings on roof model is designed and optimized with 1 ∶10 proportion,and the design form of model is ultimately deter-mined,at the same time the material selection requirements are adviced according to the model design project which is adopted,in order to provide a good experimental platform for the subsequent fire model tests.