CN203475385U - Bridge pier riverbed simulating device - Google Patents

Bridge pier riverbed simulating device Download PDF

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Publication number
CN203475385U
CN203475385U CN201320591587.9U CN201320591587U CN203475385U CN 203475385 U CN203475385 U CN 203475385U CN 201320591587 U CN201320591587 U CN 201320591587U CN 203475385 U CN203475385 U CN 203475385U
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CN
China
Prior art keywords
bridge pier
tank
riverbed
water
pier
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Expired - Fee Related
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CN201320591587.9U
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Chinese (zh)
Inventor
尹霄
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尹霄
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Priority to CN201320591587.9U priority Critical patent/CN203475385U/en
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Publication of CN203475385U publication Critical patent/CN203475385U/en
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Abstract

The utility model discloses a bridge pier riverbed simulating device which comprises a water trough, sand arranged in the water trough, at least one bridge pier, a flow measurement weir and a current meter, wherein the at least one bridge pier is fixed on the water trough and is inserted in the sand, the flow measurement weir is used for measuring water flow in the water trough, and the current meter is used for measuring the water flow rate in the water trough, the flow measurement weir is fixed on the upstream of the water trough, and a flip tail door used for controlling the water level in the water trough is arranged on the downstream of the water trough. The bridge pier riverbed simulating device can simulate the water flow characteristics on the periphery of the bride pier, the mechanism of forming local scour of the pier shape of the bride pier and the size of scouring resistance when the bridge pier is in different flow speed and water depth conditions.

Description

Bridge pier riverbed analogue means
Technical field
The utility model relates to a kind of device of probing into bridge pier current feature and bridge pier pier shape local scour mechanism, particularly relates to a kind of bridge pier riverbed analogue means.
Background technology
Along with the rapid economic development of China, the bridge of building more and more comes many.After bridge builds up, the discharge condition of bridge periphery or navigation condition (the current feature in bridge pier pier week) are not carried out to an assessment at present; While, the risk of bridge also cannot obtain an effective theoretical foundation along with the raising of the reserve-water-level of Three Gorges Dam.
Utility model content
The technical problems to be solved in the utility model is to provide the current feature in a kind of bridge pier week of simulating bridge pier under different in flow rate, different water depth condition, and the little bridge pier riverbed analogue means of the mechanism Ji Chong Chinese People's Anti-Japanese Military and Political College of bridge pier pier shape local scour.
For addressing the above problem, the utility model provides a kind of bridge pier riverbed analogue means, described bridge pier riverbed analogue means comprises tank, be arranged on sand in tank, be fixed on tank and intert at least one bridge pier in sand, measure the weir of discharge in tank and the current meter of measuring flow rate of water flow in tank, described weir is fixed on the upstream of tank, and the downstream of described tank is provided with the turnover panel tail-gate of controlling water level in tank.
Further, described bridge pier riverbed analogue means also comprises movable chaining pin, and described movable chaining pin is arranged on the cell wall of tank.
Further, described bridge pier riverbed analogue means also comprises sensor, and described sensor setting is on bridge pier.
Further, the width of described tank is that 1 meter, length are 27 meters.
The utility model bridge pier riverbed analogue means comprises current meter, measures the weir of tank water flow and the turnover panel tail-gate of control tank water level, the current feature in bridge pier week of simulating bridge pier under different in flow rate, different water depth condition, it is little that movable chaining pin can detect mechanism Ji Chong Chinese People's Anti-Japanese Military and Political College of bridge pier pier shape local scour.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiments of the utility model bridge pier riverbed analogue means.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the preferred embodiments of the utility model bridge pier riverbed analogue means comprises tank 1, husky 3, two bridge piers 2, weir 4, current meter (figure does not show), movable chaining pin (figure does not show) and sensor (figure does not show).Described husky 3 are arranged in tank 1, described bridge pier 2 is fixed on tank 1 and interts at husky 3 li, described weir 4 is fixed on the upstream of tank 1, the downstream of described tank 1 is provided with the turnover panel tail-gate 5 of the water level of controlling tank 1, current meter is used for measuring the interior flow rate of water flow of tank 1, described movable chaining pin is arranged on the cell wall of tank 1, little for detection of the mechanism Ji Chong Chinese People's Anti-Japanese Military and Political College of the pier shape part of bridge pier 2.Described sensor setting is on bridge pier 2, and described sensor is connected with computer, and the boats and ships by the different tonnages of computer simulation collide bridge pier 2 from different perspectives, detect the peak value of impact size.In other embodiment, can be with adopting a bridge pier or a plurality of bridge pier.
In present embodiment, that described tank 1 is of a size of is wide 1 meter, long 27 meters, described bridge pier 2 is fixed by screws in tank 1, described current meter adopts the HD-4 computer current meter of southwestern water transportation research institute development.
Wherein, in the husky thickness h of the interior paving of tank 1, be the 9.0m that 12cm(is equivalent to prototype thickness), it is the 375m that 5.0m(is equivalent to prototype length that bridge pier 2 the place aheads spread husky length a), after pier, length b is the 150m that 2.0m(is equivalent to prototype length).
According to experiment demand, in the present embodiment, each current key element guide is:
Flow rate of water flow guide λ v=8.66 initial velocity guide λ vo=8.66
River-bed deformation guide λ hs=75 silt mud footpath guide λ d=75
Current start velocity meets following relational expression:
v wherein 0represent the initial velocity of current, d represents grains of sand diameter, and h represents the depth of water.In river, silt grain is d by average grain diameter after testing p=70.5mm, depth of water h=16.69mm, can obtain through bringing formula into: v 0 = 4.60 × 0.705 1 3 × 16.69 1 6 = 3.04 m / s . According to flume experiment, its corresponding start velocity is 30.0~40.0cm/s, obtains thus initial velocity guide λ vo=10.1~7.6, get its average λ vo=8.66, flow rate of water flow guide is λ after testing v=8.66, therefore meet λ vov=8.66 designing requirement, so draw the current feature in experimental data bridge pier week that can provide bridge pier under different in flow rate, different water depth condition from bridge pier riverbed analogue means, and the mechanism Ji Chong Chinese People's Anti-Japanese Military and Political College of the pier shape local scour of bridge pier is little, provide the theoretical foundation of bridge pier scour protection.When testing, before every group of test, all with low discharge, to model, pour water, and guarantee that local scour does not occur model in the situation that of augmented flow progressively, after model flow is harmonized, more progressively reduce water level, arrive experimental design water level always.
These are only embodiment of the present utility model; not thereby limit the scope of the claims of the present invention; every equivalent structure that utilizes the utility model manual and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner within scope of patent protection of the present utility model.

Claims (4)

1. a bridge pier riverbed analogue means, it is characterized in that: described bridge pier riverbed analogue means comprises tank, be arranged on sand in tank, be fixed on tank and intert at least one bridge pier in sand, measure the weir of discharge in tank and the current meter of measuring flow rate of water flow in tank, described weir is fixed on the upstream of tank, and the downstream of described tank is provided with the turnover panel tail-gate of controlling water level in tank.
2. bridge pier as claimed in claim 1 riverbed analogue means, is characterized in that: described bridge pier riverbed analogue means also comprises movable chaining pin, and described movable chaining pin is arranged on the cell wall of tank.
3. bridge pier as claimed in claim 1 riverbed analogue means, is characterized in that: described bridge pier riverbed analogue means also comprises sensor, and described sensor setting is on bridge pier.
4. bridge pier as claimed in claim 1 riverbed analogue means, is characterized in that: the width of described tank is that 1 meter, length are 27 meters.
CN201320591587.9U 2013-09-24 2013-09-24 Bridge pier riverbed simulating device Expired - Fee Related CN203475385U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320591587.9U CN203475385U (en) 2013-09-24 2013-09-24 Bridge pier riverbed simulating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320591587.9U CN203475385U (en) 2013-09-24 2013-09-24 Bridge pier riverbed simulating device

Publications (1)

Publication Number Publication Date
CN203475385U true CN203475385U (en) 2014-03-12

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Family Applications (1)

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CN201320591587.9U Expired - Fee Related CN203475385U (en) 2013-09-24 2013-09-24 Bridge pier riverbed simulating device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104596735A (en) * 2014-12-17 2015-05-06 河海大学 Optimal arrangement method of bridge group
CN104790339A (en) * 2015-04-03 2015-07-22 上海勘测设计研究院有限公司 Water-resisting building hydraulic model test measuring device and method
CN108193636A (en) * 2018-01-23 2018-06-22 水利部交通运输部国家能源局南京水利科学研究院 The computational methods of flow rate of water flow at a kind of different distance of bridge pier downstream
CN109612685A (en) * 2019-01-15 2019-04-12 西南交通大学 For the flow velocity of flume test and the integrated measurer of depth and method
CN109724770A (en) * 2018-11-06 2019-05-07 浙江理工大学 A kind of simulation sink
CN110132533A (en) * 2019-05-09 2019-08-16 中建路桥集团有限公司 A kind of test model for simulating bridge pier draft and bridge pier load-bearing capacity relationship

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104596735A (en) * 2014-12-17 2015-05-06 河海大学 Optimal arrangement method of bridge group
CN104596735B (en) * 2014-12-17 2017-04-12 河海大学 Optimal arrangement method of bridge group
CN104790339A (en) * 2015-04-03 2015-07-22 上海勘测设计研究院有限公司 Water-resisting building hydraulic model test measuring device and method
CN108193636A (en) * 2018-01-23 2018-06-22 水利部交通运输部国家能源局南京水利科学研究院 The computational methods of flow rate of water flow at a kind of different distance of bridge pier downstream
CN108193636B (en) * 2018-01-23 2019-10-01 水利部交通运输部国家能源局南京水利科学研究院 The calculation method of flow rate of water flow at a kind of different distance of bridge pier downstream
CN109724770A (en) * 2018-11-06 2019-05-07 浙江理工大学 A kind of simulation sink
CN109612685A (en) * 2019-01-15 2019-04-12 西南交通大学 For the flow velocity of flume test and the integrated measurer of depth and method
CN110132533A (en) * 2019-05-09 2019-08-16 中建路桥集团有限公司 A kind of test model for simulating bridge pier draft and bridge pier load-bearing capacity relationship

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Granted publication date: 20140312

Termination date: 20140924

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