国防交通工程与技术
國防交通工程與技術
국방교통공정여기술
TRAFFIC ENGINEERING AND TECHNOLOGY FOR NATIONAL DEFENCE
2012年
2期
31-35
,共5页
高速铁路%地下车站%隧道%空气动力学%数值模拟
高速鐵路%地下車站%隧道%空氣動力學%數值模擬
고속철로%지하차참%수도%공기동역학%수치모의
high-speed railway%tunnels for the underground station%aerodynamics%numerical simulation
将高速铁路车站引入城市地下,必然面临车站内的空气动力学问题。探讨了隧道长度对车站内瞬变压力等气动效应的影响规律,在分析了站内压力不利叠加时机的基础上,推导了与隧道长度有关的地下车站内瞬变压力不利叠加的判别式,并对不同隧道长度下列车通过地下车站进行了数值模拟,验证了理论分析结果,探讨了影响站内气动环境的不利隧道长度。
將高速鐵路車站引入城市地下,必然麵臨車站內的空氣動力學問題。探討瞭隧道長度對車站內瞬變壓力等氣動效應的影響規律,在分析瞭站內壓力不利疊加時機的基礎上,推導瞭與隧道長度有關的地下車站內瞬變壓力不利疊加的判彆式,併對不同隧道長度下列車通過地下車站進行瞭數值模擬,驗證瞭理論分析結果,探討瞭影響站內氣動環境的不利隧道長度。
장고속철로차참인입성시지하,필연면림차참내적공기동역학문제。탐토료수도장도대차참내순변압력등기동효응적영향규률,재분석료참내압력불리첩가시궤적기출상,추도료여수도장도유관적지하차참내순변압력불리첩가적판별식,병대불동수도장도하열차통과지하차참진행료수치모의,험증료이론분석결과,탐토료영향참내기동배경적불리수도장도。
With more and more high-speed railway stations being laid underground in the city,the aerodynamic problems of the station will be inevitably faced.The laws of how the tunnel＇s length affects the aerodynamic effects of the station,such as the transient pressure,are explored in the paper.Upon the basis of analyzing the time of the aerodynamic coincidence in the underground station,the discriminants of ＂the unfavorable tunnel length＂ of the tunnel of the station are deduced.Then the trains＇ passing through the underground station with different tunnel lengths is simulated,with the theoretically analytic results tested and the ＂most unfavorable tunnel length＂ explored.
