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New type of eliminating energy pool out-flow scouring experiments of rapid chamfer falling guttery for highway(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年02期
Page:
42-45
Research Field:
Publishing date:
2009-02-20

Info

Title:
New type of eliminating energy pool out-flow scouring experiments of rapid chamfer falling guttery for highway
Author(s):
SHEN Bo1; 2; AI Cui-ling3; LU Hong-xing2
1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,Shaanxi,China;2.School of Water Resources and Architectural Engineering,Northwest Agriculture and Forestry University,Yangling 712100,Shaanxi,China;3.School of Civil Engineering and Architecture,Fuzhou University,Fuzhou 350002,Fujian,China
Keywords:
road engineering;  roadbed drainage;  rush falling rapids chamfer;  new type eliminating energy pool;  maximal scouring depth
PACS:
U417.3
DOI:
-
Abstract:
In order to increase the safety of rapid chamfer falling guttery for highway, this paper has done 3 new types of eliminating energy pool outflow scouring experiments of rapid chamfer falling guttery for highway ( the convention pool，falling water platform pool，sidestep outflowing pool, and convention pool joining subsidiary pool). The results show that under the same flow conditions and rapid chamfer height, the falling platform pool outflow scouring maximal depth is the smallest among the four eliminating energy pool types, the convention pool joining subsidiary pool belongs to the second, decreasing of sidestep outflowing pool scouring maximal depth is comparatively smaller than the convention eliminating pool, the convention pool scouring pit depth is the greatest one; the souring maximal depth decreases with increase of the falling platform pool depth, but the ordinary rush falling rapid chamfer convention pool depth increases with increase of the souring maximal depth. By considering of safety and economy of engineering, falling water platform pool and sidestep outflowing pool can decrease the great deal of excavate soil, and increase the eliminating pool stability. The falling water platform pool，sidestep outflowing pool, and convention pool joining subsidiary pool can decrease the preventive scouring pavement length of eliminating energy pool. Using three new types convention pool construct together, the effect of damages preventing will be improved obviously. 3 tabs, 4 figs, 6 refs.

References:

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Memo

Memo:
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Last Update: 2009-02-20