Flow measurement method for small and medium-sized rivers and urban river sections based on ecological solidification of flow measurement sections
A flow measuring cross-section, small and medium-sized technology, applied in the direction of measuring devices, relative volume flow measurement, liquid/fluid solid measurement, etc., can solve the problems of high cost, difficult maintenance, easy cracking of the protective surface, etc., and achieve short construction period and resistance to harsh conditions Strong ability in natural environment, good overall softness and stability
Active Publication Date: 2019-05-21
辽宁省营口水文局
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Problems solved by technology
Prototype experiments in large and medium-sized rivers show that the conventional cross-section curing treatment generally adopts masonry or concrete, and the cost is relatively high; due to the rigid protection, when the riverbed settles unevenly, the protection surface is easy to crack and maintenance is difficult
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[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0035] 1. According to figure 1 , figure 2 , image 3 It is required to excavate the foundation trench in the mainstream area of the river; place multiple rows of concrete pipes vertically so that the cured section has strong impact resistance, the inner diameter of the concrete pipe is 1m, the outer diameter is 1.15m, and the height is 3m; adjust the horizontal position of the concrete pipe , so that the pipe body is arranged in contact, and the vertical and horizontal lines of multiple concrete pipes are in a straight line; the posture of the pipe body is corrected to make the pipe body vertical; the upstream and downstream foundation grooves are backfilled with gravel material to stabilize the pipe body; layering in the concrete pipe Backfill the original river channel with sand and gravel, manually tamp every 0.5m backfill, then backfil...
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The invention relates to the field of hydrological tests, in particular to a small and medium size river and urban river reach flow measuring method based on ecological flow measuring fracture surfacecuring. Ecological fracture surface curing construction is carried out on runoff of a river or a river reach; and in the flood happening process, flow is obtained through a relation between the waterlevel of a fracture surface and the flow, and flow measuring is achieved. Concrete pipes are vertically buried in the river reach observing fracture surface, gaps in the pipes are filled with river reach gravels, pipe piles are formed, ecological grid transitional protection is adopted to the upstream and the downstream of the fracture surface, and it is guaranteed that the observation fracture surface is stable. According to the small and medium size river and urban river reach flow measuring method based on ecological flow measuring fracture surface curing, the pipe piles are rigid and resistant to scouring and are not prone to deforming, the gaps are backfilled through the gravels of an original river reach, and the roughness factor of the fracture surface is not changed; the idea of ecologically treating rivers is met; and the process is simple, and the construction period is short.
Description
technical field [0001] The invention relates to the field of hydrological measurement, in particular to a flow monitoring method applicable to the cross-section solidification technology of flow measurement in small and medium-sized rivers and urban river sections. Background technique [0002] In recent years, the damage caused by small and medium-sized river flood disasters has become more and more serious, and the casualties and economic losses have been increasing. At present, the methods of river flood monitoring in our country mainly include ship survey, hydrological cableway, bridge survey, buoy, gradient area method, hydraulic structure flow measurement and other methods. These monitoring methods have the disadvantages of long measurement time, low efficiency and automatic operation. Disadvantages such as high difficulty, difficult flow measurement environment, low precision, and no guarantee of personal safety. Therefore, through the research on the flood flow meas...
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IPC IPC(8): E02B1/00E02B3/00E02B3/12G01F9/00
CPCE02B1/00E02B3/00E02B3/122G01F9/00
Inventor 郭向东陈柯明汤玉福梁凤国郭艳春刘和平孙文伟蔡涛聂大鹏高世斌许海东王明亮赵小龙赵雪松丛梅梅王宏岩于红波高永军聂文欢梁卓然张国庆薛丽秦海郑晓霞
Owner 辽宁省营口水文局