CN107561239A - A kind of bottom scouring experiment method of the controllable depth of water and water velocity - Google Patents
A kind of bottom scouring experiment method of the controllable depth of water and water velocity Download PDFInfo
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- CN107561239A CN107561239A CN201710545135.XA CN201710545135A CN107561239A CN 107561239 A CN107561239 A CN 107561239A CN 201710545135 A CN201710545135 A CN 201710545135A CN 107561239 A CN107561239 A CN 107561239A
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Abstract
The present invention relates to the technical field of flow silt experiment, more particularly, to a kind of controllable depth of water and the bottom scouring experiment method of water velocity.The experimental method that a kind of bottom of the present invention washes away, the method by controlling trailer speed, so as to change uniform flow with respect to the speed that bottom washes away, to the scouring effect of bottom, it is easy to inquire into the relation that current wash away with bottom to observe uniform flow under friction speed.In addition, in experimental trough the change of the depth of water need by control water in tank into and out of realizing, it is necessary to take a substantial amount of time, man power and material；And the experimental method that a kind of bottom of the present invention washes away, experimentation is by adjusting the height of lifting platform, simply, control exactly pallet in water from the water surface with a distance from, to observe under different water depth current to the scouring effect of bottom, be easy to inquire into the influence that the depth of water washes away bottom.
Description
Technical field
The present invention relates to the technical field of current-silt experiment, more particularly, to a kind of controllable depth of water and water flow velocity
The bottom scouring experiment method of degree.
Background technology
Washed away for the bottom of horizonally projected jet, because current are to spray to produce by high hydraulic pressure, speed not phase on section
Deng and bad measurement, be not easy to inquire into the relation that flow rate of water flow and bottom wash away.
The content of the invention
The present invention is to overcome at least one defect described in above-mentioned prior art, there is provided a kind of controllable depth of water and water flow velocity
The bottom scouring experiment method of degree, it can pass through control by adjusting lifting platform the depth that controls pallet in water
The speed of trailer processed observes the scouring effect that current wash away to bottom under different speed of incoming flow, experimentation efficiency high and is easy to
Operation.
The technical scheme is that：A kind of bottom scouring experiment method of the controllable depth of water and water velocity, including with
Lower step：
S1:Installation one is paved with the pallet of silt under lifting platform on trailer, and a measurement bottom is housed directly over pallet
The ultra-sonic depth finder of bed form；
S2:Regulation lifting platform is so that pallet reaches underwater experiment depth, startup trailer to requirement of experiment speed, acceleration
Time upper limit determines (influence for avoiding the acceleration time oversize to bottom form) by testing total dragging time, lower limit by silt thing
Manage characteristic and determine (influence for avoiding acceleration excessive to bottom form), stop trailer after driveing to the pond other end, deceleration time
Upper and lower limit refer to the upper and lower limit of acceleration time, the time of record trailer speed stable section be Δ t, while record bed now
Face form；
S3:Lifting platform is adjusted so that after the pallet disengaging water surface, trailer is opened into back pool homeposition, grasped in repeating 2
Make；
S4:After such n repeated experiment, it is n × Δ t to write down now total flushing time, and passes through supersonic sounding
Instrument records the final form of bed surface in now pallet.
Further, in the present invention, experimentation can quickly and easily adjust lifting platform, so as to which accurately control is held in the palm
Disk in water from the water surface with a distance from, to observe under different water depth current to the scouring effect of bottom.And experimentation can pass through
The method for controlling trailer speed, bottom and the relative velocity of incoming in pallet are controlled exactly, to observe under friction speed uniformly
Scouring effect of the incoming to bottom.
Further, in described step S2, the trailer acceleration time upper limit determines that lower limit is by mud by testing total dragging time
Husky physical characteristic determines.The upper and lower limit of described deceleration time refers to the upper and lower limit of acceleration time.
Further, in described step S4, experimentation to record each trailer speed stable section time Δ t and
The frequency n repeated.
Further, operation each time will adjust hoistable platform so that the pallet disengaging water surface is driven back trailer and set out again after terminating
Position.
Compared with prior art, beneficial effect is：The experimental method that a kind of bottom of the present invention washes away, passes through control
The method of trailer speed, the speed washed away so as to change uniform flow with respect to bottom, to observe under friction speed uniform flow to bottom
Scouring effect, be easy to inquire into the relation that current and bottom wash away.In addition, the change of the depth of water needs to pass through control in experimental trough
Water into and out of realizing, it is necessary to take a substantial amount of time, man power and material in tank；A kind of and bottom of the present invention
The experimental method washed away, experimentation are simple, control pallet in water from water exactly by adjusting the height of lifting platform
The distance in face, to the scouring effect of bottom, it is easy to inquire into the influence that the depth of water washes away bottom to observe current under different water depth.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is overlooking the structure diagram of the present invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some parts to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by accompanying drawing.Being given for example only property of position relationship described in accompanying drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Figure 1, 2, including towing basin 1, trailer 2, console 3, lifting platform 4, ultra-sonic depth finder 5, support
Disk 6, silt 7.
Trailer 2 is entirely set up on towing basin 1, and the inside of trailer 2 is provided with console 3, lifting platform 4, ultrasound
Deep instrument 5, the middle part of trailer 2 is hollow structure, and for lifting platform 4 on hollow structure, lifting platform 4 passes through hollow structure
Bottom connecting trays 6, pallet 6 is built with silt 7.
In the present embodiment, a kind of bottom scouring experiment method of the controllable depth of water and water velocity, comprise the following steps：
S1:4 times installations one of lifting platform on trailer 2 are paved with the pallet 6 of silt, are surveyed directly over pallet 6 equipped with one
Measure the ultra-sonic depth finder 5 of bottom form；
S2:Regulation lifting platform 4 starts trailer 2 to requirement of experiment speed so that pallet 6 reaches underwater experiment depth,
The acceleration time upper limit determines (influence for avoiding the acceleration time oversize to bottom form) by testing total dragging time, and lower limit is by silt
Physical characteristic determine (influence for avoiding acceleration excessive to bottom form), stop trailer 2 after driveing to the pond other end, slow down
The upper and lower limit of time refers to the upper and lower limit of acceleration time, and the time of the record velocity-stabilization section of trailer 2 is Δ t, while records this
When Shoal bar；
S3:Lifting platform 4 is adjusted so that after the disengaging water surface of pallet 6, trailer 2 is opened into the homeposition of back pool 1, repeats 2
Middle operation；
S4:After such n repeated experiment, it is n × Δ t to write down now total flushing time, and passes through supersonic sounding
Instrument 5 records the final form of bed surface in now pallet 6.
The present invention relates to the experimental method that a kind of bottom washes away, experimentation by adjusting lifting platform, can simply,
Exactly control pallet in water from the water surface with a distance from, to the scouring effect of bottom, be easy to so as to observe current under different water depth
Inquire into the influence that the depth of water is washed away to bottom；In addition, the speed by controlling trailer, washed away with respect to bottom so as to changing uniform flow
Speed, to the scouring effect of bottom, it is easy to inquire into the pass that water velocity is washed away with bottom to observe uniform incoming flow under friction speed
System.And horizonally projected jet in the past is washed away to bottom, because current are to spray to produce by high hydraulic pressure, the not phase of the speed on section
Deng and bad measurement, and the change of the depth of water need by control water in tank into and out of realizing, whole process accuracy
Difference, and take a substantial amount of time, man power and material.Therefore, the present invention controls pallet in water by adjusting lifting platform
Depth, control different speed of incoming flow by controlling the speed of trailer, it is whole to observe the scouring effect that current wash away to bottom
Individual experimentation efficiency high, and it is easily operated.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (5)
1. a kind of bottom scouring experiment method of controllable depth of water and water velocity, it is characterised in that comprise the following steps：
S1. installation one is paved with the pallet of silt under the lifting platform on trailer, and a measurement bottom shape is housed directly over pallet
The ultra-sonic depth finder of state；
S2. lifting platform is adjusted so that pallet reaches underwater experiment depth, and startup trailer is driveed to pond to requirement of experiment speed
Stop trailer after the other end, and the time interval of record trailer speed stable section is Δ t, while records Shoal bar now；
S3. lifting platform is adjusted so that after the pallet disengaging water surface, trailer is opened into back pool homeposition, repeats to operate in S2；
S4. after such n repeated experiment, it is n × Δ t to write down now total flushing time, and is remembered by ultra-sonic depth finder
Record the final form of now bed surface.
2. the bottom scouring experiment method of a kind of controllable depth of water according to claim 1 and water velocity, its feature exist
In：In described step S2, the trailer acceleration time upper limit determines that lower limit is determined by the physical characteristic of silt by testing total dragging time
It is fixed.
3. the bottom scouring experiment method of a kind of controllable depth of water according to claim 2 and water velocity, its feature exist
In：The upper and lower limit of described deceleration time refers to the upper and lower limit of acceleration time.
4. the bottom scouring experiment method of a kind of controllable depth of water according to claim 1 and water velocity, its feature exist
In：In described step S4, experimentation will record the time Δ t of each trailer speed stable section and the number repeated
n。
5. the bottom scouring experiment method of a kind of controllable depth of water according to claim 1 and water velocity, its feature exist
In：Operation each time to adjust hoistable platform after terminating so that pallet departs from the water surface and opens back trailer homeposition again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545135.XA CN107561239B (en) | 2017-07-06 | 2017-07-06 | Bottom bed scouring experiment method capable of controlling water depth and water flow speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710545135.XA CN107561239B (en) | 2017-07-06 | 2017-07-06 | Bottom bed scouring experiment method capable of controlling water depth and water flow speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107561239A true CN107561239A (en) | 2018-01-09 |
| CN107561239B CN107561239B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710545135.XA Active CN107561239B (en) | 2017-07-06 | 2017-07-06 | Bottom bed scouring experiment method capable of controlling water depth and water flow speed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051148A (en) * | 2018-01-16 | 2018-05-18 | 常州大学 | The experimental provision and method of the porous leakage monitoring of underwater gas transportation pipeline |
Citations (7)
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|---|---|---|---|---|
| CN101666720A (en) * | 2009-09-08 | 2010-03-10 | 清华大学 | Scouring model experimental device of underground silt and method |
| CN102183452A (en) * | 2011-02-22 | 2011-09-14 | 同济大学 | Anti-erosion performance testing method for road material |
| CN102305696A (en) * | 2011-08-02 | 2012-01-04 | 上海交通大学 | Deep sea vertical pipe array model vortex-induced vibration test device with top capable of moving in step flow |
| CN202854131U (en) * | 2012-09-17 | 2013-04-03 | 河海大学 | Water channel device for simulating erosion and transmission characteristics of bottom mud under combined action of waves and lake currents |
| CN103292970A (en) * | 2013-05-09 | 2013-09-11 | 西南石油大学 | Marine riser vibration characteristic simulation test device under deepwater well drilling working condition and test method |
| CN104502060A (en) * | 2014-12-04 | 2015-04-08 | 河海大学 | Confirmation method for double-pier-column local scouring characteristics |
| CN106052604A (en) * | 2016-05-30 | 2016-10-26 | 北京交通大学 | Device for measurement of local scour depth around bridge pier |
-
2017
- 2017-07-06 CN CN201710545135.XA patent/CN107561239B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666720A (en) * | 2009-09-08 | 2010-03-10 | 清华大学 | Scouring model experimental device of underground silt and method |
| CN102183452A (en) * | 2011-02-22 | 2011-09-14 | 同济大学 | Anti-erosion performance testing method for road material |
| CN102305696A (en) * | 2011-08-02 | 2012-01-04 | 上海交通大学 | Deep sea vertical pipe array model vortex-induced vibration test device with top capable of moving in step flow |
| CN202854131U (en) * | 2012-09-17 | 2013-04-03 | 河海大学 | Water channel device for simulating erosion and transmission characteristics of bottom mud under combined action of waves and lake currents |
| CN103292970A (en) * | 2013-05-09 | 2013-09-11 | 西南石油大学 | Marine riser vibration characteristic simulation test device under deepwater well drilling working condition and test method |
| CN104502060A (en) * | 2014-12-04 | 2015-04-08 | 河海大学 | Confirmation method for double-pier-column local scouring characteristics |
| CN106052604A (en) * | 2016-05-30 | 2016-10-26 | 北京交通大学 | Device for measurement of local scour depth around bridge pier |
Non-Patent Citations (1)
| Title |
|---|
| 邓绍云: "桩群局部冲淤特性试验研究", 《人民长江》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051148A (en) * | 2018-01-16 | 2018-05-18 | 常州大学 | The experimental provision and method of the porous leakage monitoring of underwater gas transportation pipeline |
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| Publication number | Publication date |
|---|---|
| CN107561239B (en) | 2021-11-09 |
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