必须声明标量变量 "@Script_ID"。 陕西省西咸新区黄土场地海绵设施渗漏对建筑物的影响-《地球科学与环境学报》
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[1]邓朝显,温馨,胡志平*,等.陕西省西咸新区黄土场地海绵设施渗漏对建筑物的影响[J].地球科学与环境学报,2020,42(04):560-568.[doi:10.19814/j.jese.2020.04028]
 DENG Zhao-xian,WEN Xin,HU Zhi-ping*,et al.Impact of Leakage of Sponge Facilities on Building at Loess Site in Xixian New Area of Shaanxi Province, China[J].Journal of Earth Sciences and Environment,2020,42(04):560-568.[doi:10.19814/j.jese.2020.04028]
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第42卷
期数:
2020年第04期
页码:
560-568
栏目:
工程地质
出版日期:
2020-07-15

文章信息/Info

Title:
Impact of Leakage of Sponge Facilities on Building at Loess Site in Xixian New Area of Shaanxi Province, China
文章编号:
1672-6561(2020)04-0560-09
作者:
邓朝显1温馨2胡志平2*柴少波2马越1姬国强1
(1. 陕西省西咸新区沣西新城开发建设(集团)有限公司 海绵城市技术中心,陕西 咸阳 712002; 2. 长安大学 建筑工程学院,陕西 西安 710061)
Author(s):
DENG Zhao-xian1 WEN Xin2 HU Zhi-ping2* CHAI Shao-bo2 MA Yue1 JI Guo-qiang1
(1. The Technology Research Center for the Sponge City, Fengxi New City Development and Construction Group Co. Ltd. of Shaanxi Xixian New Area, Xianyang 712002, Shaanxi, China; 2. School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China)
关键词:
海绵城市 黄土场地 建筑地基 渗流场 地基沉降 流-固耦合 渗漏 陕西
Keywords:
sponge city loess site building foundation leakage field foundation settlement flow-solid coupling leakage Shaanxi
分类号:
P642
DOI:
10.19814/j.jese.2020.04028
文献标志码:
A
摘要:
黄土场地近建筑物海绵设施建设时常铺设防渗膜,以避免雨水入渗引起地基变形破坏。施工过程中防渗膜的意外破损时有发生,讨论近建筑物基础防渗膜局部破坏引起的工程风险有助于推进类似地区海绵城市建设。以陕西省西咸新区海绵城市建设中某一典型工程为依托,采用Geo Studio软件对周边建筑物典型海绵设施发生的渗漏问题进行数值模拟分析,得到了渗漏后土体饱和度、基础沉降和地基土应力分布变化特性,分析了渗漏点雨水入渗对地基的影响。结果表明:渗漏会使地基产生不均匀沉降; 渗漏点距基础边缘水平距离越近,所产生的附加沉降越大,渗漏导致的最大沉降量约为4 mm,满足《建筑地基基础设计规范》(GB 50007—2011)要求。另外,当渗漏点距基础边缘水平距离大于1 m时,渗漏对地基强度的影响迅速降低; 当距离大于3 m时,渗漏对地基的影响可以忽略。在本文工程背景下,渗漏导致地基破坏可能性较小。
Abstract:
It always extends anti-seepage membrane for sponge facilities at loess site to avoid uneven settlement of foundation caused by rainwater infiltration. Accidental damage of anti-seepage membrane occurs in the construction process frequently. Discussing the risk caused by the local damage of anti-seepage membrane near the foundation of buildings is helpful to promote the construction of sponge city in similar areas. Based on a typical practical project in sponge city construction of Xixian new area in Shaanxi province, Geo Studio software was used to simulate leakage impact of sponge facilities near the building and to obtain the characteristics of soil saturation, foundation settlement and variation of soil stress distribution in the foundation after leakage; furthermore, the influence of rainwater infiltration at leakage point on the foundation was appraised. The results show that the leakage could cause uneven settlement of foundation; the closer the horizontal distance between leakage point and foundation edge, the greater the additional settlement; and the maximum settlement is about 4 mm, meeting the requirements of Code for Design of Building Foundation(GB 50007—2011). Besides, the influence of leakage on the foundation strength decreases rapidly when the horizontal distance between leakage point and foundation edge is more than 1 m; while the influence could be ignored once the horizontal distance is larger than 3 m. Under the background of the project, the possibility of foundation failure caused by leakage is small.

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相似文献/References:

[1]韩煦,赵亚乾.海绵城市建设中“海绵体”的开发[J].地球科学与环境学报,2016,38(05):708.
 HAN Xu,ZHAO Ya-qian."Sponge” Development in Sponge City Construction[J].Journal of Earth Sciences and Environment,2016,38(04):708.

备注/Memo

备注/Memo:
收稿日期:2020-04-13; 修回日期:2020-05-10; 网络首发日期:2020-07-20投稿网址:http:∥jese.chd.edu.cn/
基金项目:国家自然科学基金项目(41877285); 西咸新区沣西新城海绵城市基础研究资金项目(SXLHZB2017-1396)
作者简介:邓朝显(1979-),男,陕西礼泉人,高级工程师,E-mail:dengzxzx@163.com。
*通讯作者:胡志平(1973-),男,湖南益阳人,教授,博士研究生导师,工学博士,E-mail:huzhping@chd.edu.cn。
更新日期/Last Update: 2020-07-27