CN207650071U - A kind of device for determining permeation coefficient of seepy material - Google Patents
A kind of device for determining permeation coefficient of seepy material Download PDFInfo
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- CN207650071U CN207650071U CN201721492506.4U CN201721492506U CN207650071U CN 207650071 U CN207650071 U CN 207650071U CN 201721492506 U CN201721492506 U CN 201721492506U CN 207650071 U CN207650071 U CN 207650071U
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Abstract
The utility model provides a kind of device for determining permeation coefficient of seepy material, including support device, water filling sleeve, water inlet pipe, overflow pipe, test piece fixing device and transmission water collect metering device；The water filling sleeve is whole to be vertically vacantly mounted in the support device；By delaying, sink is nested with permeable cylinder to be constituted the water filling sleeve；The water inlet pipe connects the water inlet of the slow sink；The overflow pipe connects the gap of the permeable cylinder；The detachably connected test piece fixing device in the permeable cylinder lower end；What setting was described below the test piece fixing device collects metering device through water.Device for determining permeation coefficient described in the utility model overcomes the defects of existing splashing of existing equipment water-injecting cavity and not steady enough water surface, and the water filling water surface is more steady, further improves measurement accuracy.
Description
Technical field
The utility model is related to a kind of device for determining permeation coefficient more particularly to a kind of concrete, pervious asphalt, water-permeable bricks
The device for determining permeation coefficient of equal seepy materials.
Background technology
The ground of the main life area (city square, pavement, commercial street, parking lot etc.) of city dweller is main at present
It is laid with using the fluid-tight hardened material such as granite, marble, pitch, cement, compared with natural soil, Ordinary hardening material
Expect that ground lacks respiratory, rain penetration and heat absorbing capability are poor, consequently also bring a series of problem.When raining,
Due to hardened material ground bad hydraulic permeability, ground easy tos produce ponding, and inconvenience is brought to people’s lives；Valuable water money
Source is lost in subsoil drain, has aggravated the burden of sewerage system；Meanwhile surface water cannot be mended well
It gives, seriously affects the health of urban vegetation, increase municipal administration greening burden.Ground seepy material has continuous pore structure
Concrete, pervious asphalt, water-permeable brick etc. have good water penetration, increasingly obtain the concern of people.Therefore, it widelys popularize
Pervious surface and porous pavement mitigate pumping equipment pressure, mitigate the sides such as municipal administration greening burden for restoring urban surface environment
Face has great importance.
Pervious concrete, pervious asphalt, water-permeable brick structure design in, coefficient of permeability is an important technology index,
The size of coefficient of permeability directly affects the quality of the seepy materials such as pervious concrete, pervious asphalt, water-permeable brick.However, closing at present
But there are problems that the technical bottleneck of practical application in the test of coefficient of permeability of pervious concrete, pervious asphalt, water-permeable brick.Although
There are the technology and methods that some coefficients of permeability measure in practice, for example, Chinese patent literature CN104266953A,
CN105203443A, CN201368839Y, CN202814846U etc. individually disclose different coefficient of permeability measuring apparatus, but
All test specimen is placed in a larger sink with gap in these equipment, can be overflow into this through the water of test specimen when measurement
Sink calculates the coefficient of permeability of test specimen by measuring to be through water in overflow groove and squeeze the water of spilling slot.But it is this kind of to set
Standby and method is all not mature enough, and sink depth is different, and squeeze pressure is different, and sink width is different, squeezes and overflows slot
Water is unstable, permeable test specimen lateral fluid side leakage, and there are complicated, cumbersome, measurement error is larger, money of wasting water
The problems such as source, not environmentally and application scenario limits.
Measurement device disclosed in 106769782 A of Chinese patent literature CN has broken the routine of above-mentioned typical measuring arrangements,
Overflow groove is no longer set, also no longer test specimen is placed in overflow groove, but is provided with open test piece fixing device, effectively
Coefficient of permeability measuring device is simplified, the link and factor that may influence measurement accuracy are reduced.In addition, the device no longer measures
The amount of overflow groove expressed water, but directly collect and measure the water flowed out from test specimen lower surface, this ensure that measured is saturating
The authenticity and validity of water amount substantially increase the accuracy of coefficient of permeability measurement.But pass through practice and find, the equipment
There is problem to be solved there are still some, for example, the water filling cavity configuration of the equipment is easy to splash water about during upper water, leads
Cause the water surface not steady etc. enough, this will produce no small influence to the result of actual test.
Therefore, it is necessary to which the improvement by structure overcomes above-mentioned technical problem, the section of coefficient of permeability measurement is further increased
The property learned and accuracy.
Utility model content
The purpose of this utility model is that：A kind of device for determining permeation coefficient of seepy material is provided, can be overcome existing
The defects of existing splashing of equipment water-injecting cavity and not steady enough the water surface.
Technical solution is used by the utility model realizes above-mentioned purpose：
A kind of device for determining permeation coefficient of seepy material, including support device, water filling sleeve, water inlet pipe, spilling water are provided
Pipe, test piece fixing device and transmission water collect metering device；
The water filling sleeve is whole to be vertically vacantly mounted in the support device；
By delaying, sink is nested with permeable cylinder to be constituted the water filling sleeve；The slow sink internal diameter is more than described permeable
Cylinder outer diameter；The permeable cylinder axial length is more than the slow sink axial length；The slow sink top opens, bottom
Equipped with first through hole；The permeable cylinder upper and lower ends open, and upper part enters described via the first through hole nesting
Inside slow sink, its underpart stays in other than the slow sink；The permeable cylinder upper limb after nesting is less than the slow water
Slot upper limb；Watertight structure is equipped at the first through hole；
On the slow basin sidewall, water inlet is equipped at bottom, top is equipped with the second through-hole；Described saturating
The gap just opposite with second through-hole is equipped on water drum side wall at upper limb；Described in the water inlet pipe connection
Water inlet；The gap that the overflow pipe passes through the second through-hole connection described；
The detachably connected test piece fixing device in the permeable cylinder lower end；The test piece fixing device lower end
Vacantly, and thereunder the setting water that penetrates collects metering device.
In the embodiment of the utility model, the support device is not particularly limited in shape, structure, can be existing
Having in technology arbitrarily vertically can vacantly install the device of water filling sleeve, such as can be skeleton, table type etc..Described
The hole of suitable size can be arranged vertically to fix water filling sleeve in support device top, and lower part can be arranged in varying numbers thin
Long foot keeps the hanging of water filling sleeve.
In the embodiment of the utility model, the slow sink of the water filling sleeve and permeable barrel shape all do not limit particularly
It is fixed, can be square tube, circular cylinder or polygon cylinder, the cross-sectional shape for delaying sink and permeable cylinder can be identical, can not also
Together.In the preferred scheme of the utility model, the slow sink and permeable cylinder are rounded cylindrical.
In order to bring damping to the ripples to rise and fall in the injecting process, the water surface is set to become more steady, the utility model is excellent
In the scheme of choosing, in the circumferential horizontally disposed orifice plate in permeable cylinder periphery in the slow sink, the hole Board position is described
Below overflow pipe.
In the embodiment of the utility model, the test piece fixing device is used for will be under test specimen and the permeable cylinder in test
Watertight connection is realized at end, can be various detachable watertight connectors and combinations thereof in the prior art.The utility model is preferred
Scheme in, the test piece fixing device is made of elaxtic seal and banding part；The elaxtic seal cladding
In test specimen and permeable cylinder joining place, circumferential sealing and the active force of interconnection, the banding are provided for test specimen and permeable cylinder
Part is respectively set in the test specimen outer surface that elaxtic seal coats and permeable cylinder outer surface, for distinguishing test specimen and permeable cylinder
It tightens together with elaxtic seal.
In the embodiment of the utility model, the overflow pipe and water inlet pipe can be separately connected water work and water storage is set
It is standby, a water storage apparatus with water pump can also be connected jointly, to recycle the water outlet of overflow pipe.
In the embodiment of the utility model, metering device includes at least collecting container and weighing fills for described being collected through water
It sets；The collecting container is located at below hanging test piece fixing device, and opening area is much larger than the test specimen floor space, with
Fully collect the water that test specimen penetrates.In the preferred scheme of the utility model, described further sets through water collection metering device
There are timing device, input equipment, the chip of preset calculation procedure, storage device and display equipment.
Measurement device described in the utility model measures the coefficient of permeability of material by the following method：
1) blocky seepy material test specimen is taken, selects two parallel planes of test specimen as test surfaces, other than test surfaces
Surface of test piece is sealed processing；Two plane-parallel vertical ranges are measured and recorded, specimen thickness L is denoted as；
2) step 1) treated test specimen is using two test surfaces as above and below, by the permeable cylinder lower end described in face above
Mouthful, the permeable cylinder lower end being in contact is wrapped with test piece upper part using the elaxtic seal, then uses banding part point
Permeable cylinder lower end periphery and elaxtic seal and test piece upper part periphery and elaxtic seal are not fastened；Make test specimen in permeable cylinder
Lower section is in the overhang of side watertight；
3) water inlet pipe in the measurement device, the water filling into the slow sink are opened, water level reaches on permeable cylinder
Enter permeable cylinder after edge, is overflowed from overflow pipe when water level is higher than gap lower edge in permeable cylinder；Inflow is adjusted so as to flow into saturating
The water of water drum and the water for overflowing permeable cylinder reach equilibrium state, to make the liquid level in permeable cylinder be maintained at one admittedly
Definite value H；
4) in the case where keeping the permeable cylinder liquid level described in step 3) to stablize, metering device record is collected through water
Through the Arbitrary Increment Q and corresponding time T of water；
5) coefficient of permeability is calculated using following parameter：The permeable cylinder that the thickness L for the test specimen that step 1) measures, step 2) measure
The liquid level H and/or step 4) record that lower ending opening area (i.e. the discharge section area of surface of test piece) W, step 3) obtain
Time T and time T in increased water Q.
In the prior art, different calculation formula, this reality may be used according to different situations when calculating coefficient of permeability
The requirement of different calculation formula can widely be met by obtaining parameter sets with novel method, and tester can be as needed
Suitable formula is selected to be calculated.The preferred calculation formula of coefficient of permeability assay method of the utility model is as follows：
Coefficient of permeability=through the increment Q/ (the time T of discharge section area W × transmission of test specimen) of water
In the coefficient of permeability assay method of the preferred seepy material of the utility model, step 4) and the continuous meter of step 5)
Calculation obtains 3 or more coefficient of permeability values, the average value of all coefficient of permeability values is finally calculated, as the seepy material
Coefficient of permeability.
Compared with prior art, the device for determining permeation coefficient of the seepy material of the utility model and method have various aspects
Advantageous effect, be mainly reflected in：
1, the water filling water surface is more steady, further improves measurement accuracy.
The measurement device of the utility model uses the water filling sleeve of inside and outside nesting to test specimen water filling, wherein external slow sink
Upper water, water level are entered in a manner of circumferentially injecting in permeable cylinder after reaching a certain height, and the single-point than existing sidewall opening is noted
Water mode significantly improves flow to the unbalanced impact of surface of test piece, while also reducing the degree to splash in permeable cylinder, and
And in the utility model preferred embodiment, by the way that orifice plate is arranged in slow sink, the upper water process in slow sink is made further to keep away
Exempt to splash water about, has kept the water surface more stable.
By the improvement of above-mentioned upper water process, the accuracy of coefficient of permeability measurement is substantially increased.
2, device structure is simple, is easy installation and safeguards
The device of the utility model compared with the prior art have simpler structure so that continuous mode also it is simpler just
It is prompt, time saving and energy saving, while there is higher measurement accuracy.
Description of the drawings
Fig. 1 is the overall structure diagram of 1 device for determining permeation coefficient of embodiment.
Fig. 2 is the sectional structure chart of 1 device for determining permeation coefficient of embodiment.
Fig. 3 is the slow sink structure schematic diagram of 1 device for determining permeation coefficient of embodiment.
Fig. 4 is the slow sink vertical view of 1 device for determining permeation coefficient of embodiment.
All figure labels are described as follows：
1- delays sink, the permeable cylinders of 2-, 3- water inlet pipes, 4- overflow pipes, 5- silica gel test specimen fixing sleeves, 6- hose clamps, the 7- collection water capacity
Device, 8- weighing equipments, 9- touch screen type micro-computers, 10- test specimens, tetra- foot supporting tables of 11-, 12- orifice plates, 14- first through hole, 15- into
The mouth of a river, the second through-holes of 16-, 17- gaps.
Specific implementation mode
In the device for determining permeation coefficient of the utility model, the structure and shape of support device can be arbitrarily selected as needed
Shape generally selects in order to which device is stablized there are four elongated support leg supporting table；Slow sink and permeable cylinder can be selected as needed
The material and shape being applicable in can usually select stainless steel material, for example, 304 stainless steels, are prepared into cylindrical shape；It can root
According to the material and shape for needing to select to be suitable as elaxtic seal in test piece fixing device, the material generally selected is silicon
Glue is prepared into flexible boot tubular；The hose clamp setting quantity can be determined according to the specification of test specimen, when specimen thickness is larger
When, the hose clamp quantity for fastening elaxtic seal and test block needs corresponding increase；The orifice plate generally selects stainless steel
Material is made.
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but the utility model
It is not limited to these examples.
Embodiment 1
A kind of device for determining permeation coefficient of seepy material, as shown in Figure 1, 2, including one or four foot supporting tables 11, four foot branch
Support right angle setting water filling sleeve on platform 11；By delaying, sink 1 is nested with permeable cylinder 2 to be constituted water filling sleeve；1 internal diameter of slow sink is about saturating
1.5-2 times of 2 outer diameter of water drum；2 axial length of permeable cylinder is about 1.5-2 times of 1 axial length of slow sink；As shown in Figure 2,3, delay
1 open-top of sink, bottom are equipped with first through hole 14；2 upper and lower ends of permeable cylinder open, and upper part is nested via first through hole 14
Into inside slow sink 1, its underpart stays in other than slow sink 1；2 upper limb of permeable cylinder after nesting is less than 1 upper limb of slow sink；First
Watertight structure is formed by welding manner at through-hole 14；As shown in Figure 2,3, on slow 1 side wall of sink, be equipped at the bottom into
The mouth of a river 15, top are equipped with the second through-hole 16；Just opposite with the second through-hole 16 overflow is equipped at upper limb on 2 side wall of permeable cylinder
The mouth of a river 17；Water inlet pipe 3 connects water inlet 15；Overflow pipe 4 passes through the second through-hole 16 to connect gap 17；As shown in Figure 2,4, delay water
In the circumferential horizontally disposed orifice plate 12 in 2 periphery of permeable cylinder in slot 1,12 position of orifice plate is below overflow pipe 4.2 lower end of permeable cylinder is removable
Connect test piece fixing device with unloading；Test piece fixing device is made of silica gel test specimen fixing sleeve 5 and hose clamp 6；Silica gel test specimen fixing sleeve 5
It is coated on 2 joining place of test specimen 10 and permeable cylinder, circumferential sealing and the active force of interconnection are provided for test specimen 10 and permeable cylinder 2,
It is set respectively in 2 outer surface of permeable cylinder that 10 outer surface of test specimen that silica gel test specimen fixing sleeve 5 coats, silica gel test specimen fixing sleeve 5 coat
Hose clamp 6 is set, for test specimen 10 and permeable cylinder 2 to tighten together with silica gel test specimen fixing sleeve 5 respectively.Test specimen is after installation is complete,
10 lower end of test specimen is in overhang.
Overflow pipe 4 and water inlet pipe 3 connect a water storage apparatus with water pump jointly, to recycle going out for overflow pipe
Water.
As shown in Figure 1, it includes collecting container 7 and weighing equipment 8, touch screen type micro-computer 9 to collect metering device through water；Collection
Water container 7 is located at 10 lower section of test specimen of pendency, and opening area is much larger than 10 floor space of test specimen, fully to collect the transmission of test specimen 10
Water.Touch screen type micro-computer 9 carries timing device, input equipment, the chip of preset calculation procedure, storage device and display equipment,
What can be obtained according to weighing equipment 8 calculates the coefficient of permeability of test specimen through water incremental data and other initial measurement parameters, and
Numerical value is presented on screen；Operations can be stored, replicated, being deleted etc. simultaneously to test data.
Embodiment 2
A kind of coefficient of permeability assay method of seepy material, using device for determining permeation coefficient described in embodiment 1, specifically
Method includes the following steps：
1) blocky seepy material test specimen is taken, selects two parallel planes of test specimen as test surfaces, other than test surfaces
Surface of test piece carries out twining the encapsulation process such as glue or waxing；Two plane-parallel vertical ranges are measured and recorded, test specimen thickness is denoted as
Spend L；
2) step 1) treated test specimen is using two test surfaces as above and below, by the permeable cylinder lower end described in face above
Mouthful, the permeable cylinder lower end being in contact is wrapped with test piece upper part using the silica gel test specimen fixing sleeve, then uses several larynxs
Cuffs fastens permeable cylinder lower end periphery and silica gel test specimen fixing sleeve, test piece upper part periphery and silica gel test specimen fixing sleeve respectively；Make examination
Part is in the overhang of side watertight below permeable cylinder；It measures and records permeable cylinder lower ending opening area (i.e. surface of test piece
Discharge section area) W；
3) external water pump is opened, by water inlet pipe water filling into the slow sink, passes through the overflow pipe in slow sink
Lower section setting orifice plate prevents from splashing, and the water surface is made steadily to increase, and water level reaches and enters permeable cylinder after permeable cylinder upper limb, water in permeable cylinder
It is overflowed from overflow pipe when being higher than gap lower edge position；Inflow is adjusted so as to flow into the water of permeable cylinder and overflow the water of permeable cylinder
Amount reaches equilibrium state, to make the liquid level in permeable cylinder be maintained at a fixed value H；
4) in the case where keeping the permeable cylinder liquid level described in step 3) to stablize, the continuous access test block of collecting container is saturating
The water crossed is obtained by meausring apparatus and touch screen type micro-computer and records the Arbitrary Increment Q and corresponding time T through water；
5) coefficient of permeability is calculated using following parameter：Lower end open area W, the step 4) record for the permeable cylinder that step 2) measures
Time T and time T in increased water Q；Calculation formula is as follows：
Coefficient of permeability=through the increment Q/ (the time T of discharge section area W × transmission of test specimen) of water
Step 4) and the continuous survey calculation of step 5) obtain 3 or more coefficient of permeability values, finally calculate all permeable systems
The average value of numerical value, the coefficient of permeability as the seepy material.
The part that do not addressed in the utility model uses or uses for reference prior art and can be realized.
In the description of the present invention, it should be understood that term "center", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", " back of the body ", "bottom" "inner", "outside" is orientation based on ... shown in the drawings or position
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Specific embodiment described herein is only the spiritual example explanation to the utility model.This practicality
Novel person of ordinary skill in the field can make various modifications or additions to the described embodiments or adopt
It is substituted with similar mode, but without departing from the spirit of the present application or surmounts model defined in the appended claims
It encloses.
Claims (7)
1. a kind of device for determining permeation coefficient of seepy material, including support device, water filling sleeve, water inlet pipe, overflow pipe, test specimen
Fixing device and transmission water collect metering device；
The water filling sleeve is whole to be vertically vacantly mounted in the support device；
By delaying, sink is nested with permeable cylinder to be constituted the water filling sleeve；The slow sink internal diameter is more than outside the permeable cylinder
Diameter；The permeable cylinder axial length is more than the slow sink axial length；The slow sink top opens, and bottom is equipped with
First through hole；The permeable cylinder upper and lower ends open, and upper part enters the slow water via the first through hole nesting
Inside slot, its underpart stays in other than the slow sink；The permeable cylinder upper limb after nesting is less than on the slow sink
Edge；Watertight structure is equipped at the first through hole；
On the slow basin sidewall, water inlet is equipped at bottom, top is equipped with the second through-hole；In the permeable cylinder
The gap just opposite with second through-hole is equipped on side wall at upper limb；The water inlet pipe connection water inlet
Mouthful；The gap that the overflow pipe passes through the second through-hole connection described；
The detachably connected test piece fixing device in the permeable cylinder lower end；The test piece fixing device lower end is outstanding
Sky, and the setting water that penetrates collects metering device thereunder.
2. measurement device described in claim 1, it is characterised in that：The slow sink and permeable cylinder are rounded cylindrical.
3. measurement device described in claim 1, it is characterised in that：In permeable cylinder periphery, circumferential level is set in the slow sink
Orifice plate is set, the hole Board position is below the overflow pipe.
4. measurement device described in claim 1, it is characterised in that：The test piece fixing device is by elaxtic seal and hoop
Tight part is constituted；The elaxtic seal is coated on test specimen and permeable cylinder joining place, and it is close to provide circumference for test specimen and permeable cylinder
Envelope and the active force being connected with each other, the banding part is in the test specimen outer surface that elaxtic seal coats and permeable cylinder outer surface
It is respectively set, for test specimen and permeable cylinder to tighten together with elaxtic seal respectively.
5. measurement device described in claim 1, it is characterised in that：The overflow pipe and water inlet pipe connects a band water jointly
The water storage apparatus of pump, to recycle the water outlet of overflow pipe.
6. measurement device described in claim 1, it is characterised in that：Described collect metering device through water and include at least is catchmented
Container and meausring apparatus；The collecting container is located at below hanging test piece fixing device, and opening area is much larger than described
Test specimen floor space, fully to collect the water of test specimen transmission.
7. the measurement device described in claim 6, it is characterised in that：Described is further provided with meter through water collection metering device
When equipment, input equipment, the chip of preset calculation procedure, storage device and display equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721492506.4U CN207650071U (en) | 2017-11-10 | 2017-11-10 | A kind of device for determining permeation coefficient of seepy material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721492506.4U CN207650071U (en) | 2017-11-10 | 2017-11-10 | A kind of device for determining permeation coefficient of seepy material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109752305A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of constant head soil permeability coefficient measurement device |
| CN109856026A (en) * | 2018-11-15 | 2019-06-07 | 华中科技大学 | A kind of device and method for testing seepy material coefficient of permeability |
| CN110631978A (en) * | 2019-09-25 | 2019-12-31 | 广东新环机电装备制造有限公司 | Filtering speed test equipment |
| CN111323357A (en) * | 2020-03-30 | 2020-06-23 | 金陵科技学院 | Concrete spare that permeates water rate detection device that permeates water |
| CN111337403A (en) * | 2020-01-06 | 2020-06-26 | 四川大学 | Experimental device for measuring slope water permeability and water-stone/sand separation characteristics of water permeable material |
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2017
- 2017-11-10 CN CN201721492506.4U patent/CN207650071U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856026A (en) * | 2018-11-15 | 2019-06-07 | 华中科技大学 | A kind of device and method for testing seepy material coefficient of permeability |
| CN109856026B (en) * | 2018-11-15 | 2020-06-02 | 华中科技大学 | Device and method for testing water permeability coefficient of water permeable material |
| CN109752305A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of constant head soil permeability coefficient measurement device |
| CN109752305B (en) * | 2019-02-27 | 2022-09-30 | 中国地质大学（武汉） | Constant head soil permeability coefficient measuring device |
| CN110631978A (en) * | 2019-09-25 | 2019-12-31 | 广东新环机电装备制造有限公司 | Filtering speed test equipment |
| CN111337403A (en) * | 2020-01-06 | 2020-06-26 | 四川大学 | Experimental device for measuring slope water permeability and water-stone/sand separation characteristics of water permeable material |
| CN111337403B (en) * | 2020-01-06 | 2021-07-02 | 四川大学 | Experimental device for measuring slope water permeability and water-stone/sand separation characteristics of water permeable material |
| CN111323357A (en) * | 2020-03-30 | 2020-06-23 | 金陵科技学院 | Concrete spare that permeates water rate detection device that permeates water |
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