地层塌陷引起土体变形的阵列式三维活动门试验研究

doi:10.13722/j.cnki.jrme.2023.0054

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摘要活动门试验将地层损失简化为活动门的下沉体积，可用于探讨岩溶塌陷、隧道开挖等地层损失引起的土体变形与地面沉降。目前的活动门试验以二维试验为主，对于实际的三维变形及其随地层损失增长的渐近性发展规律研究还不够深入。采用开发的12×12阵列式活动门试验装置，开展3种不同填料高度下的密实砂土三维活动门全模型和半模型试验。利用144台全阵列荷载感知系统测试得到全模型试验活动门下沉全过程的荷载变化数据，通过双轴直线滑轨–激光位移扫描装置间歇地扫描填料表面并获得全过程的表面沉降云图。对应地开展半模型试验，通过粒子图像测速(PIV)技术实时捕捉透明有机玻璃挡板后的填料内部的断面位移。利用测试得到的全阵列荷载数据得到三维活动门地基反应曲线，探讨填料剪切带随活动门下降的发展规律。揭示三维活动门试验中的填料分层沉降符合二维高斯曲线分布规律，探讨填料内部分层的沉降槽宽度与填料下沉体积的变化规律，提出三维活动门体系变形与表面沉降预测方法，试验结果可为相关工程中的土体变形与地表沉降预测提供参考。

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	芮瑞1
	2
	杨宇1
	2
	杨海青3
	黄腾3
	徐杨青4
	贺世开1
	孙天健1
	郭灿3

关键词 ：土力学, 活动门试验, 土体变形, 土拱效应, 地基反应曲线, 表面沉降

Abstract：In trapdoor tests，ground loss is typically simplified as the settlement volume of the trapdoor. Trapdoor tests are commonly used to study the soil deformation and surface settlement induced by the karst collapse and tunnel excavation. However，the current trapdoor tests are mostly in 2D conditions. Future investigation is needed to understand the progressive development of soil deformation with ground loss in 3D conditions. In this study，dense sand half and full 3D trapdoor tests were conducted using a 12×12 array trapdoor test device with 3 different fill heights. 144 load sensors were used to monitor loading variations during trapdoor settlement in full tests. Laser displacement transducers，which could move on the biaxial linear tracks were used to measure the deformation of the fill surface and later to calculate the surface settlement contour. Laser displacement transducers measured fill surface deformation and calculated the surface settlement contour. The half trapdoor tests were conducted to corresponding the full trapdoor tests and the particle image velocimetry(PIV) technique captured the cross-section deformation behind the plexiglass plate. In this study，the ground reaction curve was calculated based on full trapdoor test results，and the development mechanism of the shear band with trapdoor settlement was evaluated. This study revealed that settlement at different layers from 3D trapdoor tests well matched the 2D Gaussian distribution curve and discussed the relationship between the settlement width and the settlement volume. Additionally，this study proposed a method to predict the surface settlement and ground deformation in 3D trapdoor test conditions. The results of this study can provide guidance for soil deformation and surface settlement in real projects.

Key words： soil mechanics trapdoor test soil deformation soil arching ground reaction curve surface settlement

引用本文:

芮瑞1，2，杨宇1，2，杨海青3，黄腾3，徐杨青4，贺世开1，孙天健1，郭灿3. 地层塌陷引起土体变形的阵列式三维活动门试验研究[J]. 岩石力学与工程学报, 2023, 42(12): 2898-2907.
RUI Rui1，2，YANG Yu1，2，YANG Haiqing3，HUANG Teng3，XU Yangqing4，HE Shikai1，SUN Tianjian1，GUO Can3. Array three-dimensional trapdoor experimental study on soil deformation due to ground collapse. , 2023, 42(12): 2898-2907.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2023.0054 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/I12/2898

[32]	TAYLOR D W. Fundamentals of soil mechanics[M]. New York：John Wiley，1948
[1]	赵明鹏，张震斌，周立岱. 阜新矿区地面塌陷灾害对土地生产力的影响[J]. 中国地质灾害与防治学报，2003，14(1)：80-83.(ZHAO Mingpeng，ZHANG Zhenbin，ZHOU Lidai. Influence of ground collapse disaster on land productivity in Fuxin mining area[J]. Chinese Journal of Geological Disasters and Prevention，2003，14(1)：80-83.(in Chinese))
[3]	贾亮，贺世开，朱彦鹏，等. 高填方路堤工后沉降监测试验研究[J]. 公路交通科技，2017，34(3)：15-19.(JIA Liang，HE Shikai，ZHU Yanpeng，et al. Experimental study on post-construction settlement monitoring of high fill embankment[J]. Journal of Highway and Transportation Research Development，2017，34(3)：15-19.(in Chinese))
[7]	宋许根，刘秀敏，陈从新，等. 程潮铁矿西区采空区地表塌陷机制与变形规律初探[J]. 岩石力学与工程学报，2018，37(增2)：4 262-4 273.(SONG Xugen，LIU Xiumin，CHEN Congxin，et al. Preliminary study on surface subsidence mechanism and deformation law of goaf in west area of Chengchao Iron Mine[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.2)：4 262-4 273.(in Chinese))
[9]	COSTA Y D，ZOMBERG J G，BUENO B S，et al. Failure mechanisms in sand over a deep active trapdoor[J]. Journal of Geotechnical and Geoenvironmental Engineering，2009，135(11)：1 741-1 753.
[11]	何清. 城市浅层隧道开挖对挡土结构土压力及土体沉降影响规律试验研究[硕士学位论文][D]. 武汉：武汉理工大学，2020.(HE Qing. Experimental study on the influence of shallow tunnel excavation on earth pressure and soil settlement of retaining structure in urban area[M. S. Thesis][D]. Wuhan：Wuhan University of Technology，2020.(in Chinese))
[13]	芮瑞，张龙，孙义，等. 桩承式路堤土拱演化的二维钢棒相似土模型试验[J]. 中国公路学报，2017，30(10)：8-16.(RUI Rui，ZHANG Long，SUN Yi，et al. Two-dimensional steel bar similar soil model test of soil arch evolution of pile-supported embankment[J]. China Journal of Highway and Transport，2017，30(10)：8-16.(in Chinese))
[14]	IGLESIA G R，EINSTEIN H H，WHITMAN R V. Investigation of soil arching with centrifuge tests[J]. Journal of Geotechnical and Geoenvironmental Engineering，2013，140(2)：189-201.
[17]	方恩权，杨玲芝，李鹏飞. 基于Peck公式修正的盾构施工地表沉降预测研究[J]. 现代隧道技术，2015，52(1)：143-149.(FANG Enquan，YANG Linzhi，LI Pengfei. Prediction of ground settlement in shield construction based on Peck formula correction[J]. Modern Tunnel Technology，2015，52(1)：143-149.(in Chinese))
[27]	马险峰，孔令刚，方薇，等. 砂雨法试样制备平行试验研究[J]. 岩土工程学报，2014，36(10)：1 791-1 801.(MA Xianfeng，KONG Linggang，FANG Wei，et al. Parallel experimental study on sample preparation by sand rain method[J]. Chinese Journal of Geotechnical Engineering，2014，36(10)：1 791-1 801.(in Chinese))
[2]	刘海燕，姜玉松. 隧道开挖对地表及建筑物影响的研究与分析[J]. 西部探矿工程，2005，17(3)：108-109.(LIU Haiyan，JIANG Yusong. Research and analysis of the influence of tunnel excavation on the surface and buildings[J]. West-China Exploration Engineering，2005，17(3)：108-109.(in Chinese))
[5]	潘云，潘建刚，宫辉力，等. 天津市区地下水开采与地面沉降关系研究[J]. 地球与环境，2004，32(2)：36-39.(PAN Yun，PAN Jiangang，GONG Huili，et al. Study on the relationship between groundwater exploitation and land subsidence in Tianjin urban area[J]. Earth and Environment，2004，32(2)：36-39.(in Chinese))
[12]	VAN EEKELEN S J M，BEZUIJEN A，VAN TOL A F. An analytical model for arching in piled embankments[J]. Geotextiles and Geomembranes，2013，39(39)：78-102.
[15]	HAN J，WANG F，Al-NADDAF M，et al. Progressive development of two-dimensional soil arching with displacement[J]. International Journal of Geomechanics，2017，17(12)：04017112.
[22]	刘东成. 隧道突水诱发浅层地表岩溶塌陷模型试验及预测方法研究[硕士学位论文][D]. 北京：北京交通大学，2018.(LIU Dongcheng. Study on model test and prediction method of shallow surface karst collapse induced by water inrush in tunnel[M. S. Thesis][D]. Beijing：Beijing Jiaotong University，2018.(in Chinese))
[25]	芮瑞，夏荣基，聂利文，等. 一种岩土工程多功能升降台试验装置[P]. 中国：CN213875009U，2021-08-03.(RUI Rui，XIA Rongji，NIE Liwen，et al. A multifunctional lifting platform test device for geotechnical engineering[P]. China：CN213875009U，2021-08-03.(in Chinese))
[6]	陈从新，肖国峰，黄平路，等. 程潮铁矿西区地表塌陷变形监测与预测预报研究报告[R]. 武汉：中国科学院武汉岩土力学研究所， 2 007-2 014.(CHEN Congxin，XIAO Guofeng，HUANG Pinglu，et al. Surface subsidence monitoring and forecasting in eastern area of Chengchao iron mine caused by mining[R]. Wuhan：Institute of Rock and Soil Mechanics，Chinese Academy of Sciences，2 007-2 014.(in Chinese))
[10]	徐路畅，芮瑞，张龙，等. 基于Trapdoor试验的双线隧道地表沉降预测公式探讨[J]. 岩土工程学报，2017，39(8)：1 470-1 476. (XU Luchang，RUI Rui，ZHANG Long，et al. Discussion on prediction formula of ground settlement of double-line tunnel based on Trapdoor test[J]. Chinese Journal of Geotechnical Engineering，2017，39(8)：1 470-1 476.(in Chinese))
[20]	RUI R，ZHAI Y X，HAN J，et al. Deformations in trapdoor tests and piled embankments[J]. Geosynthetics International，2019，27(2)：1-58.
[30]	LIANG L，XU C，CHEN Q，et al. Experimental and theoretical investigations on evolution of soil-arching effect in 2D trapdoor problem[J]. International Journal of Geomechanics，2020，20(6)：6020007.1-6020007.8.
[8]	TERZAGHI K. Stress distribution in dry and in saturated sand above a yielding trap-door[C]// Proceedings of the First International Conference on Soil Mechanics and Foundation Engineering. Cambridge，USA：Harvard University，1936：307-311.
[16]	PECK R B. Deep excavations and tunneling in soft ground[C]// Proceedings of the 7th International Conference of Soil Mechanics and Foundation Engineering. Mexico：Balkema A A，1969：225-290.
[18]	韩煊，李宁，STANDING J R. Peck公式在我国隧道施工地面变形预测中的适用性分析[J]. 岩土力学，2007，28(1)：23-28.(HAN Xuan，LI Ning，STANDING J R. Applicability analysis of Peck formula in ground deformation prediction of tunnel construction in China[J]. Rock and Soil Mechanics，2007，28(1)：23-28.(in Chinese))
[19]	姜忻良，赵志民，李园. 隧道开挖引起土层沉降槽曲线形态的分析与计算[J]. 岩土力学，2004，25(10)：1 542-1 544.(JIANG Xinliang，ZHAO Zhimin，LI Yuan. Analysis and calculation of soil settlement trough curve shape caused by tunnel excavation[J]. Rock and Soil Mechanics，2004，25(10)：1 542-1 544.(in Chinese))
[21]	陈仁朋，戴田，张品，等. 基于机器学习算法的盾构掘进地表沉降预测方法[J]. 湖南大学学报：自然科学版，2021，48(7)：111-118.(CHEN Renpeng，DAI Tian，ZHANG Pin，et al. Prediction method of ground settlement in shield tunneling based on machine learning algorithm[J]. Journal of Hunan University：Natural Science，2021，48(7)：111-118.(in Chinese))
[23]	王正帅，邓喀中. 采动区地表动态沉降预测的Richards模型[J]. 岩土力学，2011，32(6)：1 664-1 668.(WANG Zhengshuai，DENG Kezhong. Richards model of surface dynamic subsidence prediction in mining area[J]. Rock and Soil Mechanics，2011，32(6)：1 664-1 668.(in Chinese))
[26]	许联锋，陈刚，李建中，等. 粒子图像测速技术研究进展[J]. 力学进展，2003，33(4)：533-540.(XU Lianfeng，CHEN Gang，LI Jianzhong，et al. Research progress of particle image velocimetry[J]. Advances in Mechanics，2003，33(4)：533-540.(in Chinese))
[24]	芮瑞，万亿，夏元友，等. 一种三维阵列式多沉陷门模型试验系统[P]. 中国：CN207051284U，2018-02-27.(RUI Rui，WAN Yi，XIA Yuanyou，et al. A three-dimensional array multi-sinking gate model test system[P]. China：CN207051284U，2018-02-27.(in Chinese))
[28]	IGLESIA G R，EINSTEIN H H，WHITMAN R V. Determination of vertical loading on underground structures based on an arching evolution concept[C]// Geo-engineering for Underground Facilities. [S. l.]：[s. n.]，1999：495-506.
[4]	王延岭. 山东省泰莱盆地岩溶地面塌陷影响因素分析[J]. 中国岩溶，2016，35(1)：60-66.(WANG Yanling. Analysis of influencing factors of karst ground collapse in Tailai Basin，Shandong Province[J]. Karst in China，2016，35(1)：60-66.(in Chinese))
[29]	TALIA S，MOHAMMED Z E B. Arching in granular soils：Experimental observations of deformation mechanisms[J]. Géotechnique，2021，71(10)：866-878.
[31]	DAI B B，YANG J，ZHOU C Y. Observed Effects of Interparticle Friction and Particle Size on Shear Behavior of Granular Materials[J]. International Journal of Geomechanics，2016，16(1)：04015011.