Compound submerged dam used for renovating mountain river curve shoal

A compound and submerged dam technology, applied in the field of compound submerged dams, can solve problems such as long period, large dredging volume, navigation interference, etc., and achieve the effect of small engineering quantity, short construction period and small navigation interference

Inactive Publication Date: 2017-03-15
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practical engineering experience shows that the dredging of spurs and shallow areas can effectively improve navigation conditions, but its construction has the disadvantages of large dredging volume, long cycle, and great interference to navigation

Method used

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  • Compound submerged dam used for renovating mountain river curve shoal
  • Compound submerged dam used for renovating mountain river curve shoal
  • Compound submerged dam used for renovating mountain river curve shoal

Examples

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Embodiment Construction

[0023] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] See Figure 5 to Figure 9 , a compound submerged dam used for the improvement of curved shoals in mountainous rivers, the setting position is the same as that of the submerged dam 9 in the existing treatment technology, it is set on the original river bed 1, arranged along the width of the river, and located on the concave bank Upstream of the side deep groove 7, the crest plane of the compound submerged dam is composed of the crest plane A2 and the crest plane B4 connected by the slope surface 3, the crest plane A2 is close to the concave bank side of the curve, the dam crest The top plane B4 is at the planned waterway 8, the elevation of the dam top plane B4 is the design water level Z of the river section minus the waterway maintena...

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Abstract

The invention discloses a compound submerged dam used for renovating a mountain river curve shoal. The compound submerged dam is arranged on an original riverbed, distributed along the river width, and located at the upstream of a concave bank side quirk. The compound submerged dam is characterized in that the dam top plane of the compound submerged dam is composed of a dam top plane body A and a dam top plane body B which are in slope connection, the dam top plane body A is close to the curve concave bank side, the dam top plane body B is located at a planned channel, the elevation of the dam top plane body B is the difference obtained by subtracting the channel maintenance water depth H from the channel segment designed water level Z, and the elevation of the dam top plane body A is greater than that of the dam top plane body B. According to the submerged dam used for renovating the mountain river curve shoal, cross-section flow velocity distribution of a project channel segment is regulated through the two dam top plane bodies of different heights, bend-rushing currents are relieved, the erosion strength of a channel shallow area is improved, and therefore the navigation flow condition of the curve channel segment is obviously improved; and the compound submerged dam does not change the watercourse width and has the characteristics of small project amount and little interference to navigation in the construction period.

Description

technical field [0001] The invention relates to a submerged dam structure, in particular to a compound submerged dam used for river bend type shoal regulation in mountainous areas. Background technique [0002] The abundant water transportation resources in Southwest my country play an important role in promoting the economic development of the hinterland region. Southwest water transportation is dominated by rivers in mountainous areas, with steep slopes and rapid flows. There are stone beams, deep pools, and protruding nozzles distributed in the river channel. The local shape is complex, the water flow is turbulent, the flow state is disordered, and rapids and dangerous shoals coexist, causing troubles to the navigation of passing ships, and may endanger the safety of life and property in severe cases. In recent years, the surge in traffic volume and the development of large-scale ships have put forward higher requirements for the safety of navigation in mountainous water...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/02
CPCE02B3/02
Inventor 闫涛冯小香普晓刚刘哲李君涛
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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