Changes
Jump to:
navigation
,
search
蓄水围
6 bytes removed
,
05:48, 17 August 2015
no edit summary
====维护====
石堤: 由于石头的抗侵蚀性强,所以不需要大量连续的修复工作。
然而,石堤后的泥沙淤积导致石头需时常更换重铺。需要注意的是,堤坝洪水漫顶并不会导致侵蚀下游面,也不会形成后成冲沟以及堤坝断裂。
然而,石堤后的泥沙淤积导致石头需时常更换重铺。需要注意的是,堤坝洪水漫顶并不会侵蚀下游面,也不会形成后成冲沟以及堤坝断裂。
====成本====
← Older edit
Newer edit →
Yang12345
10
edits
Navigation menu
Personal tools
Create account
Log in
Namespaces
Special page
Variants
Views
More
Search
Navigation
Main Page
WASH Portals
Water
Rainwater Harvesting
Sanitation
Finance
Sustainability
Decision & Assessment Tools
Data Libraries
Survey Library
Agriculture Portals
Sustainable Oil Palm Farming
Food & Nutrition Security
Theme Portals
Integrated Coastal Zone Management
Handbook on Data Collection
Practitioner's Tool
School Sanitation Stories
Accessible WASH Design
Emergency WASH
Miscellaneous
Watershed Definitions
Translations
Organisations
About
Help
Tools
Recent changes
Special pages
Printable version
Hosted and managed by