[1]许健,杨少飞,吴海洋,等.黄土地区深大基坑桩锚支护结构监测与数值分析[J].西安建筑科技大学学报(自然科学版),2019,51(04):517-524.[doi:10.15986/j.1006-7930.2019.04.008]
　XU JianYANG ShaofeiWU Haiyang,ZHANG Lei.Monitoring and numerical analysis of pile-anchor supporting structure for deep and large foundation pit in loess area[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2019,51(04):517-524.[doi:10.15986/j.1006-7930.2019.04.008]
点击复制

黄土地区深大基坑桩锚支护结构监测与数值分析()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
51
期数:
2019年04期
页码:
517-524
栏目:
出版日期:
2019-08-30

文章信息/Info

Title:
Monitoring and numerical analysis of pile-anchor supporting structure for deep and large foundation pit in loess area
文章编号:
1006-7930(2019)04-0517-08
作者:
许健1; 杨少飞1; 吴海洋2; 张磊1
(1. 西安建筑科技大学 土木工程学院,陕西 西安 710055 ;2. 中国电建集团 青海省电力设计院有限公司,青海 西宁 810008)
Author(s):
XU Jian1YANG Shaofei1WU Haiyang2;  ZHANG Lei1
(1.School of Civil Engineering,Xian Univ. of Arch. & Tech., Xi an 710055, China; 2. Qinghai Electric Power Design Institute of Co. Ltd. of China Electric Power Construction Group, Xining 810008, China)
关键词:
黄土地区; 深大基坑; 桩锚支护; 监测数据; 数值模拟
Keywords:
loess area;  deep and large foundation pit;  pile-anchor supporting;  monitoring data;  numerical simulation
分类号:
TU 470+. 3
DOI:
10.15986/j.1006-7930.2019.04.008
文献标志码:
A
摘要:
基于黄土地区深大基坑桩锚支护结构变形、位移，锚索轴力及建筑物沉降等监测数据与数值计算结果的对比分析，得出以下结论：基坑支护结构桩顶水平位移、桩顶沉降、桩身水平位移，临近建筑物沉降等监测值均远小于规范规定的预警值，表明该基坑支护结构设计合理；基坑降水，尤其降水速率的变化，对地表及临近建筑物沉降有显著影响；桩身底部向基坑内的最大水平位移为8.9 mm；基坑开挖过程中支护结构的监测值与数值计算结果吻合较好
Abstract:
Based on the comparative analysis of monitoring data and numerical calculation results of deformation, displacement, axial force of anchor cable and settlement of building in deep and large foundation pit in Loess area, conclusions are drawn as follows: the monitoring values of pile top horizontal displacement, pile top settlement, pile body horizontal displacement and adjacent building settlement of foundation pit supporting structure are far less than the warning value stipulated in the code, which indicates that the design of foundation pit supporting structure is reasonable. The dewatering of foundation pit, especially the change of precipitation rate, has a significant effect on the settlement of the earths surface and adjacent buildings. The maximum horizontal displacement of the bottom of the pile into the foundation pit is 8.9mm. The monitoring value of supporting structure is in good agreement with numerical calculation during excavation

参考文献/References:

[1]帅红岩，陈少平，曾执. 深基坑支护结构变形特征的数值模拟分析[J].岩土工程学报, 2014, 36(S2): 376-380.

SHUAI Hongyan, CHEN Shaoping, ZENG Zhi. Numerical simulation of deformation characteristics of supporting structure of deep foundation pits[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 376-380.

[2]喻军，龚晓南，李元海. 基于海量数据的深基坑本体变形特征研究[J]. 岩土工程学报, 2014, 36(S2): 319-324.

YU Jun, GONG Xiaonan, LI Yuanhai. Deformation characteristics of deep excavations based on mass data [J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 319-324.

[3]张尚根，袁正如. 软土深基坑开挖地表沉降分析[J]. 地下空间与工程学报, 2013, 9(S1): 1753-1757.

ZHANG Shanggen, YUAN Zhengru. Analysis of ground settlement induced by excavation of deep foundation pit in soft soil[J]. Chinese Journal of Underground Space and Engineering, 2013, 9(S1): 1753-1757.

[4]杨敏，卢俊义. 上海地区深基坑周围地面沉降特点及其预测[J]. 同济大学学报(自然科学版), 2010, 38(2): 194-199.

YANG Min, LU Junyi. Characteristics and prediction of ground settlement around deep excavation in Shanghai [J]. Journal of Tongji University(Natural Science), 2010, 38(2): 194-199.

[5]成峰，张远芳，万永祥. 苏南软土地区地铁车站深基坑变形特性研究[J]. 地下空间与工程学报, 2013, 9(2): 387-391.

CHENG Feng, ZHANG Yuanfang, WAN Yongxiang. Deformation characteristics of deep foundation pits of subway stations in south Jiangsu province soft soil[J]. Chinese Journal of Underground Space and Engineering, 2013, 9(2): 387-391.

[6]丁智，王达，王金艳，等. 浙江地区软弱土深基坑变形特点及预测分析[J]. 岩土力学, 2015, 36(S1): 506-512.

DING Zhi, WANG Da, WANG Jinyan, et al. Deformation characteristics of Zhejiang soft soil deep foundation pits and their predictive analysis[J]. Rock and Soil Mechanics, 2015, 36(S1): 506-512.

[7]王林，谢亮，杨文琦，等. 软土地区深基坑圆筒支护结构三维数值分析模拟[J]. 建筑结构, 2011, 41(3): 88-109.

WANG Lin, XIE Liang, YANG Wenqi, et al. Three-dimensional numerical analysis and simulation of circular deep excavation in soft ground region[J]. Building Structure, 2011, 41(3): 88-109.

[8]杨骏，李夫杰，杨育僧. 软土地区地铁车站深基坑施工坑外土体位移规律研究[J]. 太原理工大学学报, 2015, 46(5): 542-547.

YANG Jun, LI Fujie, YANG Yusen. Research on the soil displacement outside the construction pit of deep foundation pit in subway station in soft soil area [J]. Journal of Taiyuan University of Technology, 2015, 46(5): 542-547.

[9]李彦东，梁发云，褚峰. 软土地区深基坑变形特性三维数值模拟与验证[J]. 地下空间与工程学报, 2011, 7(6): 1072-1120.

LI Yandong, LIANG Fayun, CHU Feng. 3D numerical simulation on the deformation behavior of deep excavation in soft soils and its verification[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(6): 1072-1120.

[10]张如林，徐奴文. 基于PLAXIS的深基坑支护设计的数值模拟[J]. 结构工程师, 2010, 26(2): 131-136.

ZHANG Rulin, XU Nuwen. Numerical simulation of timbering design of deep foundation pits based on PLAXIS [J]. Structural Engineers, 2010, 26(2): 131-136.

[11]万志辉，刘红艳，步艳洁.深基坑围护结构变形监测与数值模拟分析[J]. 施工技术, 2015, 44(7): 83-86.

WAN Zhihui, LIU Hongyan, BU Yanjie. Analysis of deformation monitoring and numerical simulation on retaining structure of deep foundation excavation[J]. Construction Technology, 2015, 44(7): 83-86.

[12]周勇，郭楠，朱彦鹏. 兰州地铁世纪大道站基坑支护监测与数值模拟[J]. 铁道工程学报, 2014(1): 82-88.

ZHOU Yong, GUO Nan, ZHU Yanpeng. Construction monitoring and numerical simulation of deep excaVation of century avenue metro station in Lanzhou [J]. Journal of Railway Engineering Society, 2014(1): 82-88.

[13]官少龙，杜艳艳，蔡新森，等. 深基坑桩锚支护体系变形特性研究[J]. 路基工程, 2015(4): 139-143.

GUAN Shaolong, DU Yanyan, CAI Xinsen, et al. Study on deformation characteristics of pile-anchor supporting system for deep foundation pit[J]. Subgrade Engineering, 2015, (4): 139-143.

[14]刘科，赵浩. 黄土深基坑桩锚联合支护结构变形与稳定性分析[J]. 西安建筑科技大学学报(自然科学版), 2014, 46(4): 513-517.

LIU Ke, ZHAO Hao. Numerical analysis and stability analysis of a commercial plaza excavation engineering foundation in loess area [J]. J. Xi′an Univ. of Arch. & Tech. (Natural Science Edition), 2014, 46(4): 513-517.

[15]吴意谦，朱彦鹏.兰州市湿陷性黄土地区地铁车站深基坑变形规律监测与数值模拟研究[J]. 岩土工程学报, 2014, 36(S2): 404-411.

WU Yiqian, ZHU Yanpeng. Monitoring and numerical simulation of deformation law of deep foundation pit of subway station in Lanzhou collapsible loess[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 404-411.

[16]吕凤梧. 复杂条件下深基坑嵌岩支护开挖施工过程数值模拟与分析[D]. 上海：同济大学, 2002.

相似文献/References:

[1]李瑞娥,王娟娟,谢永利,等.黄土地区地表形态指数的构建与实现[J].西安建筑科技大学学报(自然科学版),2015,47(02):229.[doi:10.15986/j.1006-7930.2015.02.014]
　LI Ruie,WANG Juanjuan,XIE Yongli,et al.Construction and implementation of surface morphology index in loess area[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2015,47(04):229.[doi:10.15986/j.1006-7930.2015.02.014]
[2]牛泽林,霍润科.黄土铁路隧道衬砌结构可靠性分析与研究[J].西安建筑科技大学学报(自然科学版),2012,44(02):193.[doi:10.15986/j.1006-7930.2012.02.008]
　NIU Ze-lin,HUO Run-ke.Reliability analysis on the lining structure of loess railway tunnel[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2012,44(04):193.[doi:10.15986/j.1006-7930.2012.02.008]
[3]权登州,王毅红,井彦林,等.黄土区地铁车站动力分析中的无限元传输边界[J].西安建筑科技大学学报(自然科学版),2015,47(04):537.[doi:10.15986/j.1006-7930.2015.04.013]
　QUAN Dengzhou,WANG Yihong,JING Yanlin,et al.Infinite-element transmitting boundary in dynamic analysis of subway station in loess area[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2015,47(04):537.[doi:10.15986/j.1006-7930.2015.04.013]

备注/Memo

备注/Memo:
收稿日期:2018-08-28
修改稿日期:2019-06-10
基金项目:国家自然科学基金项目(515084455)
第一作者:许健(1980-)，男，博士，教授，博士生导师，主要从事特殊土与环境岩土工程研究.E-mail: xujian@xauat.edu.cn
更新日期/Last Update: 2019-09-17