风场对半湿润山脊土遗址掏蚀量的影响

谌文武; 苏娜; 杨光

doi:10.11779/CJGE201602014

风场对半湿润山脊土遗址掏蚀量的影响 English Version

谌文武^{1, 2},
苏娜^{1, 2},
杨光^{1, 2}

1. 兰州大学西部灾害与环境力学教育部重点实验室,甘肃兰州 730000; 2. 兰州大学土木工程与力学学院,甘肃兰州 730000

基金项目: 文化遗产保护领域科学和技术研究课题（2013-YB- HT-013）; 国家自然科学基金项目（51578272）; 国家自然科学基金青年基金项目（51208245）

详细信息

作者简介:
谌文武(1966- ),男,教授,博士生导师,主要从事地质工程、岩土工程、文物保护工程科研与教学工作。E-mail: sungp@lzu.edu.cn。

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出版历程
- 收稿日期: 2015-03-24
- 发布日期: 2016-02-24

Effect of wind field on sapping quantity of earthen architecture ruins along ridge of semi-humid areas

CHEN Wen-wu^{1, 2},
SU Na^{1, 2},
YANG Guang^{1, 2}

1. Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, Lanzhou University, Lanzhou 730000, China; 2. School of Civil Engineering and Mechanics of Lanzhou University, Lanzhou 730000, China

摘要

摘要: 在青海省半湿润地区,地处高海拔且常年遭受几种主风向作用下的土遗址,风力掏蚀成为其破坏的最重要因素之一。主要根据多年的气候数据及已观测的掏蚀量,并结合室内风洞试验与流体动力学（CFD）中常用的软件Fluent进行模拟分析,主要揭示风力掏蚀病害形成和发展过程中的影响因素,进一步结合工程地质学和力学理论进行分析研究,提出风蚀量与风速、风蚀时间之间的定量关系。为防治和监测此类病害的发生和发展,预报一次风蚀事件的风蚀量,及其对土遗址稳定造成的影响提供有益的参考。
- 干旱区 /
- 土遗址 /
- 掏蚀区 /
- 风场
Abstract: The sapping caused by prevailing wind erosion is one of the most important factors in the deterioration of earthen architecture ruins located in semi-humid areas in Qinghai Province. Based on the climatic data for many years in the area and sapping quantity of the ruins, in combination with the results of laboratory tests and simulation analyses using Fluent software in computational fluid dynamics, the influence factors for the formation and development of wind erosion diseases of the earthen architecture ruins are evaluated. Furthermore, the effect of wind velocity, duration and area of wind erosion on the sapping quantity of the ruins are assessed quantitatively according to the analysis principles of engineering geology and mechanics. This study may be helpful for prevention, monitoring and control of formation and development of sapping diseases, forecast of sapping quantity of specific wind erosion as well as its effect on the stability of the earthen ruins.
- arid area /
- earthen architecture ruin /
- sapping zone /
- wind field

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