[1]薛子龙,万景红,马雨衍,等.长江河道堤防裂缝成因分析与处理方法[J].江苏水利,2024,(09):69-72.
　XUE Zilong,WAN Jinghong,MA Yuyan,et al.Analysis of causes and treatment methods for cracks in the Yangtze River Embankment[J].JIANGSU WATER RESOURCES,2024,(09):69-72.
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长江河道堤防裂缝成因分析与处理方法()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2024年09期
页码:
69-72
栏目:
水利工程建设
出版日期:
2024-09-20

文章信息/Info

Title:
Analysis of causes and treatment methods for cracks in the Yangtze River Embankment
文章编号:
1007-7839（2024）09-0069-0004
作者:
薛子龙1; 万景红2; 马雨衍1; 朱震东1; 姚璐1
（1. 南京市长江河道管理处，江苏 南京 210011；2. 江苏省灌溉总渠管理处，江苏 淮安 223200）
Author(s):
XUE Zilong1;  WAN Jinghong2;  MA Yuyan1;  ZHU Zhendong1;  YAO Lu1
（1. Nanjing Yangtze River Administration Office, Nanjing 210011, China；2. General Irrigation Canal Management Office of Jiangsu Province, Huai’an 223200, China）
关键词:
长江堤防; 横向裂缝; 纵向裂缝; 剪切应力; 内摩擦角
Keywords:
Yangtze River embankment;  transverse cracks;  longitudinal cracks;  shear stress;  internal friction angle
分类号:
TV871
文献标志码:
A
摘要:
长江堤防南京段路面裂缝主要呈现为横向裂缝与纵向裂缝，横缝长度、缝宽、深度总体上均小于纵缝，横缝主要由地基不均匀沉降及温度应力引起，纵缝主要由滑坡及重物荷载引起。土壤自重应力、剪切应力、温度应力均能引起堤防裂缝，其中剪切应力是造成堤防裂缝的最主要形式，由于土壤存在内摩擦角φ，土体剪切破坏时的破裂面与大主应力作用面的角度呈45°+φ/2。缝隙灌浆、护坡加固与开挖回填是处理堤防路面裂缝的有效措施，能够减小土壤颗粒之间的缝隙，增加堤防的整体强度和稳定性，提高堤防的整体安全性能。
Abstract:
The road surface cracks in the Nanjing section of the Yangtze River embankment mainly present as transverse cracks and longitudinal cracks. The length, width, and depth of the transverse joints are generally smaller than those of the longitudinal joints. The transverse joints are mainly caused by uneven settlement of the foundation and temperature stress, while the longitudinal joints are mainly caused by landslides and heavy loads. Soil self weight stress, shear stress, and temperature stress can cause cracks in embankments, among which shear stress is the most common form of crack formation. Due to the presence of internal friction angle φ in the soil, the angle between the fracture surface and the large principal stress action surface during soil shear failure is 45°+φ/2. Gap grouting, slope reinforcement, and excavation backfilling are effective measures for dealing with cracks in embankment pavement, which can reduce the gaps between soil particles, increase the overall strength and stability of the embankment, and improve the overall safety performance of the embankment.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2024-05-15
基金项目：南京市水务科技项目（202301）
作者简介：薛子龙（1993—），男，工程师，硕士，主要从事水利工程运行管理工作。E-mail：1587637223@qq.com
更新日期/Last Update: 2024-09-15