Stability of Geobags in Riverbank Erosion Protection Structures - Experimental and Numerical Study
河岸侵蚀防护结构中土工袋的稳定性 - 实验和数值研究
基本信息
- 批准号:552453-2020
- 负责人:
- 金额:$ 1.73万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Alliance Grants
- 财政年份:2021
- 资助国家:加拿大
- 起止时间:2021-01-01 至 2022-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Sand-filled geotextile bags (geobags) are a comparatively new erosion protection system, howeveradvantageous over traditional hard armour system, credited to their flexible and porous nature. Geobagriverbank protection structures have been implemented with success for about 15 years mostly in Asia, butthere are remaining uncertainties about the element stability under various water-bag and bag-bag interfaceconditions. The main reason is that existing design formulae are made for hard material and do not consider theflexible nature of the geobags. The goals of the partnership between the University of Alberta and theNorthwest Hydraulic Consultants (NHC) are to identify the key factors affecting geobag stability, enhance ourunderstanding of the performance of geobag riverbank protection system, and develop a reliable designformula for sizing the geobags. The proposed research project will include a large-scale systematic laboratoryexperiments in conjunction with computational modeling. The relationships between hydraulic forces exertedon the bag surface and bag stability will be established, taking into consideration the flexibility of the geobags.The findings will be used to develop a sizing formulae and will be incorporated into guidelines. The improvedknowledge will provide guidance and facilitate the development of a design standard for geobag riverbankprotection structures. Combining filter properties with stability, geobags are ideal for temporary works that canbe removed from the river system, as well as preparatory works that is incorporated later into the permanentworks. This research will facilitate wider application of geobags which will greatly reduce the cost related tomaterial, construction, flood damage and subsequent restoration work, as well as promote a sustainable erosioncontrol across Canada.
填沙土工布袋是一种较新的侵蚀防护系统,但由于其柔性和多孔性而优于传统的硬装甲系统。土工-河堤防护结构在亚洲大部分地区已成功实施了约15年,但在各种水袋和袋-袋界面条件下,构件的稳定性仍存在不确定性。主要原因是现有的设计公式是针对硬质材料制定的,没有考虑到土工袋的柔韧性。阿尔伯塔大学和西北水利咨询公司(NHC)合作的目标是确定影响土工包稳定性的关键因素,增强我们对土工包河堤保护系统性能的理解,并制定一个可靠的土工包尺寸设计公式。拟议的研究项目将包括与计算建模相结合的大规模系统实验室实验。考虑土工袋的柔性,建立施加在土工袋表面的液压力与土工袋稳定性之间的关系。研究结果将用于制定分级公式,并将纳入指导方针。这些改进的知识将为土工包护岸结构的设计标准的制定提供指导和促进。土工袋结合了过滤性能和稳定性,是可以从河流系统中移除的临时工程的理想选择,以及后来纳入永久工程的准备工程。这项研究将促进土工袋的广泛应用,大大降低与材料、建设、洪水破坏和后续修复工作相关的成本,并促进加拿大可持续的侵蚀控制。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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She, Yuntong其他文献
A comprehensive public-domain river ice process model and its application to a complex natural river
- DOI:
10.1016/j.coldregions.2019.04.010 - 发表时间:
2019-07-01 - 期刊:
- 影响因子:4.1
- 作者:
Blackburn, Julia;She, Yuntong - 通讯作者:
She, Yuntong
Comparison of a vertically-averaged and a vertically-resolved model for hyporheic flow beneath a pool-riffle bedform
- DOI:
10.1016/j.jhydrol.2017.12.063 - 发表时间:
2018-02-01 - 期刊:
- 影响因子:6.4
- 作者:
Ibrahim, Ahmad;Steffler, Peter;She, Yuntong - 通讯作者:
She, Yuntong
She, Yuntong的其他文献
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{{ truncateString('She, Yuntong', 18)}}的其他基金
Prediction of Dynamic Ice Processes in Complex River Systems
复杂河流系统动态冰过程的预测
- 批准号:
RGPIN-2021-02887 - 财政年份:2022
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
Prediction of Dynamic Ice Processes in Complex River Systems
复杂河流系统动态冰过程的预测
- 批准号:
RGPAS-2021-00022 - 财政年份:2022
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Accelerator Supplements
Prediction of Dynamic Ice Processes in Complex River Systems
复杂河流系统动态冰过程的预测
- 批准号:
RGPIN-2021-02887 - 财政年份:2021
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
Prediction of Dynamic Ice Processes in Complex River Systems
复杂河流系统动态冰过程的预测
- 批准号:
RGPAS-2021-00022 - 财政年份:2021
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Accelerator Supplements
River ice breakup flood forecasting
河流破冰洪水预报
- 批准号:
RGPIN-2015-04769 - 财政年份:2020
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
Stability of Geobags in Riverbank Erosion Protection Structures - Experimental and Numerical Study
河岸侵蚀防护结构中土工袋的稳定性 - 实验和数值研究
- 批准号:
552453-2020 - 财政年份:2020
- 资助金额:
$ 1.73万 - 项目类别:
Alliance Grants
River ice breakup flood forecasting
河流破冰洪水预报
- 批准号:
RGPIN-2015-04769 - 财政年份:2019
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
River ice breakup flood forecasting
河流破冰洪水预报
- 批准号:
RGPIN-2015-04769 - 财政年份:2018
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
Investigation on the performance of geobag revetments in rivers
河流土袋护岸性能研究
- 批准号:
522822-2018 - 财政年份:2018
- 资助金额:
$ 1.73万 - 项目类别:
Engage Grants Program
River ice breakup flood forecasting
河流破冰洪水预报
- 批准号:
RGPIN-2015-04769 - 财政年份:2017
- 资助金额:
$ 1.73万 - 项目类别:
Discovery Grants Program - Individual
相似海外基金
Stability of Geobags in Riverbank Erosion Protection Structures - Experimental and Numerical Study
河岸侵蚀防护结构中土工袋的稳定性 - 实验和数值研究
- 批准号:
552453-2020 - 财政年份:2020
- 资助金额:
$ 1.73万 - 项目类别:
Alliance Grants