堤顶高程受限的海堤断面优化设计
|
摘要
针对深圳机场三跑道海堤堤顶高程受机场航空限高制约,并同时需要满足设计波浪条件下堤后越浪量标准的问题,根据直立式和斜坡式海堤结构自身的水力学特性,分别采用胸墙挑檐和更换护面块体类型的工程方法对结构进行优化设计,使得波浪作用下的堤后越浪量有所减少。采用波浪整体物理模型试验对优化前后的海堤结构断面设计方案在波浪作用下的越浪量进行验证,分别统计分析了不同位置断面处的实际越浪量。结果表明,优化结构方案在设计波浪作用下的越浪量相比未优化结构显著减小。因此,合理的挑檐设计和护面人工块体选型可以有效控制波浪作用下堤后的越浪量,在堤顶高度受限条件下充分提高堤后安全性。设计案例可为类似的工程设计提供参考。
In view of the problem that the seawall top elevation of the third runway of Shenzhen Airport is restricted by both the clearance limit and the overtopping volume standard behind the seawall, according to the different hydrodynamic characteristics of vertical structure and slope structure, the overtopping volume behind the seawall is reduced by adopting the engineering means of breast wall eaves and replacing the armor block type on the slope surface, respectively. After validating the optimized design scheme with experimental test by statistical analysis of actual overtopping at different cross sections, the validation results show that the overtopping of the optimized structure under the designed wave is significantly smaller than that of the original structure. The result shows that the reasonable eaves design and artificial block selection on slope surface can effectively reduce the wave overtopping volume, which can enhance the safety under the condition of limited top height of the embankment. The design case of this project can provide reference for similar engineering design.
In view of the problem that the seawall top elevation of the third runway of Shenzhen Airport is restricted by both the clearance limit and the overtopping volume standard behind the seawall, according to the different hydrodynamic characteristics of vertical structure and slope structure, the overtopping volume behind the seawall is reduced by adopting the engineering means of breast wall eaves and replacing the armor block type on the slope surface, respectively. After validating the optimized design scheme with experimental test by statistical analysis of actual overtopping at different cross sections, the validation results show that the overtopping of the optimized structure under the designed wave is significantly smaller than that of the original structure. The result shows that the reasonable eaves design and artificial block selection on slope surface can effectively reduce the wave overtopping volume, which can enhance the safety under the condition of limited top height of the embankment. The design case of this project can provide reference for similar engineering design.
引文
[1] LI Xia,SHAN Dinglong,ZHU Feng,et al.Study on creep characteristics of geogrid based on modelling and experimental method[J].International Journal of Computer Applications in Technology,2018,58(4):308-320.
[2] 王晋军.大尺度粗糙水流特性初探[J].水利学报,1993:68-71.WANG Jinjun.Preliminary study on characteristics of large scale rough flow[J].Shuili Xuebao,1993,9(1):68-71.
[3] GB/T 51015—2014,海堤工程设计规范[S].
[4] 陈国平,王铮,袁文喜,等.不规则波作用下波浪爬高计算方法[J].水运工程,2010(3):23-30.CHEN Guoping,WANG Zheng,YUAN Wenxi,et al.Calculation of wave run-up under the irregular wave action[J].Port & Waterway Engineering,2010(3):23-30.
[5] 陈国平,周益人,严士常.不规则波作用下海堤越浪量试验研究[J].水运工程,2010(3):1-6.CHEN Guoping,ZHOU Yiren,YAN Shichang.Test study on wave overtopping under irregular wave action[J].Port & Waterway Engineering,2010(3):1-6.
[6] 卞华,李福田,刘长辉,等.二维加糙明渠紊流结构的试验研究[J].河海大学学报,1998,26(1):93-98.BIAN Hua,LI Futian,LIU Changhui,et al.Investigation on turbulent structures in two-dimensional strip roughness flume[J].Journal of Hohai University,1998,26(1):93-98.
[7] 王晋军.粗糙床面的阻力特性[J].水动力学研究与进展(A辑),1992,7(2):132-137.WANG Jinjun.Resistance of flow over rough bed[J].Journal of Hydrodynamics(A),1992,7(2):132-137.
[8] 高琴.天津港与石家庄无水港共生关系探究[J].河北工业科技,2018,35(3):153-157.GAO Qin.Analysis of mutualism between Tianjin Port and Shijiazhuang dry port[J].Hebei Journal of Industrial Science and Technology,2018,35(3):153-157.
[9] 邢翠巧,尹洪军,李兴科,等.基于流管法的面积波及效率计算方法研究[J].河北工业科技,2018,35(4):231-236.XING Cuiqiao,YIN Hongjun,LI Xingke,et al.Calculation methods of areal sweep efficiency based on stream-tube method[J].Hebei Journal of Industrial Science and Technology,2018,35(4):231-236.
[10] LIU Yong,ZJANG Shuaishuai,HE Le.Channel planform and navigation-obstruction characteristics of gravel beach group in upper reaches of the Yangtze River[J].2016,511:125-129.
[11] SERGIO H S,JOAQUIM D.On the safety of offloading operation in the oil industry[J].International Journal of Computer Applications in Technology,2012,43(3):207-216.
[12] CASSAN L,TIEN T D,CORRET D.Hydraulic resistance of emergent macroroughness at large Froude numbers:Design of nature-like fishpasses[J].Journal of Hydraulic Engineering,2014,140:1-9.
[13] STORM K B,PAPANICOLAOU A N.ADV measurements around a cluster microformin a shallow mountain stream[J].Journal of Hydraulic Engineering,2007,133(2):1379-1389.
[14] ZHAO Zhizhou,TONG Sichen,ZHU Feng,et al.Modelling and simulation of the ship rapids-ascending ability in Lancang River[J].International Journal of Computer Applications in Technology,2019,59(1):11-20.
[15] SARKAR S,PAPANICOLAOU A N,DEY S.Turbulence in a gravel-bed stream with an array of large gravel obstacles[J].Journal of Hydraulic Engineering,2016:04016052.
[2] 王晋军.大尺度粗糙水流特性初探[J].水利学报,1993:68-71.WANG Jinjun.Preliminary study on characteristics of large scale rough flow[J].Shuili Xuebao,1993,9(1):68-71.
[3] GB/T 51015—2014,海堤工程设计规范[S].
[4] 陈国平,王铮,袁文喜,等.不规则波作用下波浪爬高计算方法[J].水运工程,2010(3):23-30.CHEN Guoping,WANG Zheng,YUAN Wenxi,et al.Calculation of wave run-up under the irregular wave action[J].Port & Waterway Engineering,2010(3):23-30.
[5] 陈国平,周益人,严士常.不规则波作用下海堤越浪量试验研究[J].水运工程,2010(3):1-6.CHEN Guoping,ZHOU Yiren,YAN Shichang.Test study on wave overtopping under irregular wave action[J].Port & Waterway Engineering,2010(3):1-6.
[6] 卞华,李福田,刘长辉,等.二维加糙明渠紊流结构的试验研究[J].河海大学学报,1998,26(1):93-98.BIAN Hua,LI Futian,LIU Changhui,et al.Investigation on turbulent structures in two-dimensional strip roughness flume[J].Journal of Hohai University,1998,26(1):93-98.
[7] 王晋军.粗糙床面的阻力特性[J].水动力学研究与进展(A辑),1992,7(2):132-137.WANG Jinjun.Resistance of flow over rough bed[J].Journal of Hydrodynamics(A),1992,7(2):132-137.
[8] 高琴.天津港与石家庄无水港共生关系探究[J].河北工业科技,2018,35(3):153-157.GAO Qin.Analysis of mutualism between Tianjin Port and Shijiazhuang dry port[J].Hebei Journal of Industrial Science and Technology,2018,35(3):153-157.
[9] 邢翠巧,尹洪军,李兴科,等.基于流管法的面积波及效率计算方法研究[J].河北工业科技,2018,35(4):231-236.XING Cuiqiao,YIN Hongjun,LI Xingke,et al.Calculation methods of areal sweep efficiency based on stream-tube method[J].Hebei Journal of Industrial Science and Technology,2018,35(4):231-236.
[10] LIU Yong,ZJANG Shuaishuai,HE Le.Channel planform and navigation-obstruction characteristics of gravel beach group in upper reaches of the Yangtze River[J].2016,511:125-129.
[11] SERGIO H S,JOAQUIM D.On the safety of offloading operation in the oil industry[J].International Journal of Computer Applications in Technology,2012,43(3):207-216.
[12] CASSAN L,TIEN T D,CORRET D.Hydraulic resistance of emergent macroroughness at large Froude numbers:Design of nature-like fishpasses[J].Journal of Hydraulic Engineering,2014,140:1-9.
[13] STORM K B,PAPANICOLAOU A N.ADV measurements around a cluster microformin a shallow mountain stream[J].Journal of Hydraulic Engineering,2007,133(2):1379-1389.
[14] ZHAO Zhizhou,TONG Sichen,ZHU Feng,et al.Modelling and simulation of the ship rapids-ascending ability in Lancang River[J].International Journal of Computer Applications in Technology,2019,59(1):11-20.
[15] SARKAR S,PAPANICOLAOU A N,DEY S.Turbulence in a gravel-bed stream with an array of large gravel obstacles[J].Journal of Hydraulic Engineering,2016:04016052.