瑞雷波在台涵背填筑质量控制中的应用
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摘要
瑞雷波法探测台涵背填筑质量,不仅操作快速简便,还能获取不同深度的数据。为提高探测结果精度,笔者结合公路工程桥台涵背工程特性,通过现场试验,分析激发条件、接收系统和采集参数等因素对瑞雷波信号质量的影响。结果表明:在桥台背填筑质量检测中,根据探测深度,宜采用不同的锤重和垫板;道间距设置应合理,采用0.3～0.5 m的道间距检测效果较佳;在确保首道信号能量的前提下,偏移距应尽可能小,以1～4倍道间距为宜。在此基础上分别针对砂类土、砾类土、巨粒土等常见填料类型,在填料碾压过程中开展灌水试验、沉降观测、面波波速探测,建立了台涵背填筑质量瑞雷波法控制标准,并提出了不同填土类型的合理碾压工艺。
Rayleigh Wave is used to detect the quality of backfill of abutment. The operation is not only simple and rapid,but also gets different depth data. To improve the accuracy of detection results,combining with the highway engineering structure abutment engineering characteristics,through field test,the influences of excitation factor,selection of reception factors on Rayleigh signal quality are studied. The results indicate that in testing filling quality of bridge and culvert,( 1) different hammer weight and base plates should be used;( 2) track pitch should be rational,0.3 ～ 0.5 m track pitch could bring better detection effect;( 3) in the context of insuring the energy of first channel,offset should be as small as possible,such as 1 ～ 4 times track pitch. Based on filling sand soil,gravel soil,and coarse-grained in the compaction process,water filling test,settlement observation,surface wave velocity detection are carried out. The back filling quality control standard of Rayleigh Wave is established. The reasonable rolling process of different filling types is put forward.
Rayleigh Wave is used to detect the quality of backfill of abutment. The operation is not only simple and rapid,but also gets different depth data. To improve the accuracy of detection results,combining with the highway engineering structure abutment engineering characteristics,through field test,the influences of excitation factor,selection of reception factors on Rayleigh signal quality are studied. The results indicate that in testing filling quality of bridge and culvert,( 1) different hammer weight and base plates should be used;( 2) track pitch should be rational,0.3 ～ 0.5 m track pitch could bring better detection effect;( 3) in the context of insuring the energy of first channel,offset should be as small as possible,such as 1 ～ 4 times track pitch. Based on filling sand soil,gravel soil,and coarse-grained in the compaction process,water filling test,settlement observation,surface wave velocity detection are carried out. The back filling quality control standard of Rayleigh Wave is established. The reasonable rolling process of different filling types is put forward.
引文
[1]李林峰.瑞雷波法在路基填筑压实度质量检测中的应用研究[J].公路交通科技,2013,30(3):350-353.(Li Linfeng. Applied research of Rayleigh wave applied for the test of subgrade compaction quality[J].Journal of Highway and Transportation Research and Development,2013,30(3):350-353.(in Chinese))
[2]葛双成,刘喜亮,赵永辉,等.海塘隐患及防渗注浆效果检测技术应用研究[J].地下空间与工程学报,2013,9(1):42-47.(Ge Shuangcheng,Liu Xiliang,Zhao Yonghui et al. Application research of detecting technology for seawall hidden defects and grounting effect[J]. Chinese Journal of Underground Space and Engineering,2013,9(1):42-47.(in Chinese))
[3]杨相如.台涵背回填料性质对瑞雷波传播特性的影响[J].公路交通科技,2014,31(9):37-42.(Yang xiangru,Study on the effect of properties of backfill material of bridge and culvert on raleigh wave propagation[J]. Journal of Highway and Transportation Research and Development,2014,31(9):37-42.(in Chinese))
[4]黄真萍,刘振干.瞬态振动法瑞雷面波采集质量的探讨与分析[J].物探与化探,2005,29(2):179-183.(Huang Zhenping,Liu Zhengan. A discussion on collection quality in the transient Rayleigh wave vibration method[J]. Geophysical and Geochemical Exploration,2005,29(2):179-183.(in Chinese))
[5]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.(Yang Chenglin. Rayleigh wave exploration[M]. Bei Jing:The Geological Publishing House,1993.(in Chinese))
[6]刘强.基于瑞雷波理论的公路无损检测方法研究[D].西安:长安大学,2010.(Liu Qiang. Study on the non-destructive detection method in highway subgrade based on Rayleigh wave theory[D]. Xi’an:Chang’an University,2010.(in Chinese))
[7] Nazarian S,Stokoe K H. Situ shear wave velocities from spectral analysis of surface waves[A]∥Proceedings of8th World Conference on Earthquake Engineering[C].Sanfrancisico,1984:31-38.
[8]侯世宁,薛海飞,董守华,等.地质条件复杂地区瑞雷波勘探正演模拟[J].煤田地质与勘探,2012,8(6):66-70.(Hou Shining,Xue haifei,Dong Shouhua et al. Forward modeling of Rayleigh wave exploration in geologically complicated areas[J]. Coal Geology&Exploration,2012,8(6):66-70.(in Chinese))
[9]张凯.粘弹性介质瑞雷波模拟及其频散曲线反演[D].武汉:中国地质大学,2011.(Zhang Kai.Modeling and dispersion curve inversion of Rayleigh waves visco-elastic media[D]. Wu Han:China University of Geosciences,2011.(in Chinese))
[10]徐元璋,高桥松.瑞雷面波勘探法的资料处理与解释[J].工程地球物理学报,2013,10(1):76-80.(Xu Yuanzhang, Gao Qiaosong. Raleigh wave exploration method of data processing and interpretation[J]. Chinese Journal of Engineering Geophysics,2013,10(1):76-80.(in Chinese))
[11]贾学明,李兵.瑞雷波技术在巨粒土路基检测中的应用研究[J].路基工程,2012(5):118-121.(Jia Xueming,Li Bing. Applied research of Rayleigh wave applied for over coarse grained soil subgrade test[J]. Subgrade Engineering,2012(5):118-121.(in Chinese))
[2]葛双成,刘喜亮,赵永辉,等.海塘隐患及防渗注浆效果检测技术应用研究[J].地下空间与工程学报,2013,9(1):42-47.(Ge Shuangcheng,Liu Xiliang,Zhao Yonghui et al. Application research of detecting technology for seawall hidden defects and grounting effect[J]. Chinese Journal of Underground Space and Engineering,2013,9(1):42-47.(in Chinese))
[3]杨相如.台涵背回填料性质对瑞雷波传播特性的影响[J].公路交通科技,2014,31(9):37-42.(Yang xiangru,Study on the effect of properties of backfill material of bridge and culvert on raleigh wave propagation[J]. Journal of Highway and Transportation Research and Development,2014,31(9):37-42.(in Chinese))
[4]黄真萍,刘振干.瞬态振动法瑞雷面波采集质量的探讨与分析[J].物探与化探,2005,29(2):179-183.(Huang Zhenping,Liu Zhengan. A discussion on collection quality in the transient Rayleigh wave vibration method[J]. Geophysical and Geochemical Exploration,2005,29(2):179-183.(in Chinese))
[5]杨成林.瑞雷波勘探[M].北京:地质出版社,1993.(Yang Chenglin. Rayleigh wave exploration[M]. Bei Jing:The Geological Publishing House,1993.(in Chinese))
[6]刘强.基于瑞雷波理论的公路无损检测方法研究[D].西安:长安大学,2010.(Liu Qiang. Study on the non-destructive detection method in highway subgrade based on Rayleigh wave theory[D]. Xi’an:Chang’an University,2010.(in Chinese))
[7] Nazarian S,Stokoe K H. Situ shear wave velocities from spectral analysis of surface waves[A]∥Proceedings of8th World Conference on Earthquake Engineering[C].Sanfrancisico,1984:31-38.
[8]侯世宁,薛海飞,董守华,等.地质条件复杂地区瑞雷波勘探正演模拟[J].煤田地质与勘探,2012,8(6):66-70.(Hou Shining,Xue haifei,Dong Shouhua et al. Forward modeling of Rayleigh wave exploration in geologically complicated areas[J]. Coal Geology&Exploration,2012,8(6):66-70.(in Chinese))
[9]张凯.粘弹性介质瑞雷波模拟及其频散曲线反演[D].武汉:中国地质大学,2011.(Zhang Kai.Modeling and dispersion curve inversion of Rayleigh waves visco-elastic media[D]. Wu Han:China University of Geosciences,2011.(in Chinese))
[10]徐元璋,高桥松.瑞雷面波勘探法的资料处理与解释[J].工程地球物理学报,2013,10(1):76-80.(Xu Yuanzhang, Gao Qiaosong. Raleigh wave exploration method of data processing and interpretation[J]. Chinese Journal of Engineering Geophysics,2013,10(1):76-80.(in Chinese))
[11]贾学明,李兵.瑞雷波技术在巨粒土路基检测中的应用研究[J].路基工程,2012(5):118-121.(Jia Xueming,Li Bing. Applied research of Rayleigh wave applied for over coarse grained soil subgrade test[J]. Subgrade Engineering,2012(5):118-121.(in Chinese))