CN207703681U - Varying head test block permeability coefficient tester - Google Patents
Varying head test block permeability coefficient tester Download PDFInfo
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- CN207703681U CN207703681U CN201721916120.1U CN201721916120U CN207703681U CN 207703681 U CN207703681 U CN 207703681U CN 201721916120 U CN201721916120 U CN 201721916120U CN 207703681 U CN207703681 U CN 207703681U
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- head cover
- test block
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Abstract
The utility model discloses a kind of varying head test block permeability coefficient testers, including head cover, test block accommodating case and permanent level water tank；Head cover is made of thin conduit, tapering transition section and head cover cavity；Thin conduit is to indicate the hollow square tube of scale, Nian Jie with tapering transition section；Tapering transition section is Nian Jie with head cover cavity；One side of head cover cavity is equipped with water inlet；Test block accommodating case is made of receiving box main body, sealing plate and permeable stone；Permeable stone is flat on accommodating case bottom part body；Permanent level water tank is made of water tank main body and water vessel, and water tank main body is no top container, for placing test block accommodating case；The top of one side of water tank main body is equipped with water outlet；Water vessel is located at below water outlet, overflows water for collecting.The utility model can be used for measuring the infiltration coefficient of mortar specimen.
Description
Technical field
The utility model is related to a kind of varying head test block permeability coefficient tester, high permeability mortar tries in can be used for measuring
The measurement of block infiltration coefficient.
Background technology
As concepts such as " sponge cities " are rooted in the hearts of the people, the research of porous pavement is gradually deepened in municipal works, this is related to
And the application to permeable mortar, and the infiltration coefficient of permeable mortar is a more crucial parameter, determines porous pavement
Working performance, therefore the infiltration coefficient for how measuring permeable mortar has become a more crucial problem.In addition in city's political and ideological work
Various pipelines and tunnel have all been widely applied in journey and hydraulic engineering.These pipe tunnels are during application or due to itself
Water penetration, or due to the use of period by external load act on and generate a certain amount of crack, to increase the water penetration of pipe tunnel
Energy.Pipe tunnel is mainly equivalent to the semi-pervious material with certain water permeability by existing research, but rarely has experimental study, this is
Because these seepy materials there should be certain water penetration, and it is unable to that water penetration is excessive, so development is brought larger tired
It is difficult.One of difficult point with the infiltration coefficient that how to measure this kind of middle low permeability mortar.Traditional test equipment is to ooze
Saturating coefficient test box, mainly in weak dank material such as concrete test block, therefore it is expensive and complicated for operation.
Invention content
The utility model provides a kind of varying head test block permeability coefficient tester, for highly permeable aqueous sand in measuring
Infiltration coefficient has the characteristics that easy to operate, of low cost, environmentally protective.
Technical solution adopted by the utility model to solve its technical problems is：A kind of varying head test block infiltration coefficient test
Instrument, including head cover, test block accommodating case and permanent level water tank；The head cover is made of thin conduit, tapering transition section and head cover cavity；
The thin conduit is to indicate the hollow square tube of scale, and for scale for reading height of water level, the thin conduit passes through AB glue and taper mistake
Cross section connection；The trapezoidal poly (methyl methacrylate) plate of tapering transition Duan Weisi blocks is spliced by AB glue, and Nian Jie with head cover cavity；
The head cover cavity is that four pieces of square poly (methyl methacrylate) plates are formed by the way that AB glue is cementing mutually；One side of the head cover cavity
It is equipped with water inlet；The test block accommodating case is made of receiving box main body, sealing plate and permeable stone；The receiving box main body is by three pieces
Square aluminium alloy plate is closely spliced by bolt；The sealing plate material is aluminium alloy, shape and receiving box main body aluminium alloy
Plate is consistent, is connected with box main body is accommodated by glass cement；The permeable stone is flat on accommodating case bottom part body；The perseverance water level
Water tank is made of water tank main body and water vessel, and the water tank main body is five pieces of poly (methyl methacrylate) plates bonding without top container, for putting
Set test block accommodating case；The top of one side of the water tank main body is equipped with water outlet；The water vessel is located at below water outlet,
Water is overflowed for collecting.
Further, the water inlet is located at the center of a side of head cover cavity, which is provided with through-hole, uses
In installation inlet valve, inlet valve is connected by hose with water source.
Further, the poly (methyl methacrylate) plate bottom vehicle of the head cover cavity has concave step；The receiving box main body and
The top vehicle of sealing plate has male step；The head cover cavity is stablized by the cooperation of concave step and male step in accommodating case master
On body and sealing plate, head cover cavity, the gap accommodated between box main body, sealing plate three are sealed using glass cement.
Further, mortar specimen, mortar specimen and receiving box main body are placed on the permeable stone accommodated in box main body
And the gap between sealing plate is sealed using liquid paraffin.
The utility model has the beneficial effects that：
1, the utility model can measure the infiltration coefficient of different ratio mortar specimen, be pavement engineering, the examination of pipe tunnel engineering
It tests and offer technical support is provided.
2, the utility model tapering transition section shape is rectangular pyramid, is gradually reduced from the bottom up, therefore help to exclude
Air, water inlet are an Inlet and outlet water valve, and off-test can easily exclude the remaining water in head cover.
3, the utility model accommodates box main body, sealing plate material is aluminium alloy, and test block accommodating case and sand are sealed using paraffin
The gap between test block is starched, test block accommodating case and test block, heating paraffin wax can be conveniently separated by heating after off-test
Separable paraffin is tested for next time.
Description of the drawings
Fig. 1 is a kind of varying head test block permeability coefficient tester design sketch；
Fig. 2 is head cover schematic diagram；
Fig. 3 is test block accommodating case schematic diagram；
Fig. 4 is permanent level water tank schematic diagram；
Fig. 5 is a kind of varying head test block permeability coefficient tester schematic diagram；
In figure：Thin conduit 1；Tapering transition section 2；Head cover cavity 3；Water inlet 4；Concave step 5；Accommodate box main body 6；Sealing plate
7；Permeable stone 8；Male step 9；Water tank main body 10；Water outlet 11；Water vessel 12.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of varying head test block permeability coefficient tester provided by the utility model, including head cover, test block
Three parts of accommodating case and permanent level water tank.
As shown in Fig. 2, the head cover is made of thin conduit 1, tapering transition section 2 and head cover cavity 3；The thin conduit 1 is
Piece a length of 2 centimetres an of outside, a length of 1 centimetre of the water pipe of inner edge is highly 1 meter；The thin conduit 1 is marked with scale, for reading
Take liquid level；Thin conduit 1 is connect by AB glue with tapering transition section 2；The tapering transition section 2 is four pieces of trapezoidal organic glasses
Plate is spliced by AB glue, is in down big up small shape, convenient for driving internal air, the tapering transition section 2 away when water inlet
It is Nian Jie with head cover cavity 3 by AB glue；The head cover cavity 3 is four pieces of square poly (methyl methacrylate) plates by AB glue is cementing mutually
At bottom vehicle has 0.5 centimetre wide, 2 centimetres high concave steps 5；The center of one side of the head cover cavity 3 is equipped with water inlet
Mouth 4, the water inlet 4 are an Inlet and outlet water valve, and one end is led to inside head cover, and the other end is connected by hose with water source.
As shown in figure 3, the test block accommodating case is made of receiving box main body 6, sealing plate 7 and permeable stone 8；The accommodating case master
Body 6 is closely spliced by three pieces of square aluminium alloy plates by bolt；7 material of the sealing plate is also aluminium alloy, shape and receiving
Box main body aluminium alloy plate is consistent, is connected with box main body 6 is accommodated by glass cement when use；The case main body 6 and sealing plate 7 push up
Portion's vehicle has 0.5 centimetre wide, 2 centimetres high of male step 9；The permeable stone 8 is 2 centimetres thick, is flat on and accommodates 6 bottom of box main body.
As shown in figure 4, the perseverance level water tank is made of water tank main body 10 and water vessel 12, the water tank main body 10 is 5
Block poly (methyl methacrylate) plate bonding without top container, for placing test block accommodating case；The top of one side of the water tank main body 10
Equipped with water outlet 11, the water outlet 11 is a flowing water Valve；Water vessel 12 is located at 11 lower section of water outlet, is overflowed for collecting
Water.
Utility model works flow is as follows：First, permeable stone 8 is placed in and is accommodated in box main body 6；Mortar specimen is set again
On permeable stone 8, sealing plate 7 is covered, sealing plate 7 and receiving box main body 6 are sticked together using glass cement；Using being heated to liquid
Gap between the paraffin filling mortar specimen and receiving box main body 6 and sealing plate 7 of state；Paraffin cooling to solid-state is waited for again will
Head cover and test block accommodating case are integral by concave step 5 and the connection of male step 9；Utilize glass cement top pressure closure and test block
Gap between accommodating case；After waiting for glass adhesive curing, head cover and test block accommodating case are placed in water tank main body 10, toward water
Water filling in box main body 10 is until water level reaches water outlet 11 in water tank main body 10；Water source is opened, by water by being connected with water inlet 4
Hose injection test block accommodating case in until reaching design water level after close water source.Record t1The head height h at moment1And t2When
The head height h at quarter2, as shown in figure 5, calculating the osmotic coefficient k of mortar specimen according to formula (1).
In formula：
The height of L --- test block；
A1--- 1 inner area of thin conduit；
A2--- test block sectional area；
t1,h1--- the time of first record and height of water level at this time；
t2,h2--- the time of second record and height of water level at this time.
In this way, one group of experiment is completed, repeats above procedure several times, take arithmetic mean number.
Head cover and test block accommodating case are taken out after the completion of experiment, dries and detaches head cover and test block accommodating case, test block is held
Case is heated to 80 DEG C, waits for solid paraffin to become liquid and takes out test block, collects liquid paraffin, test block accommodating case is wiped
It is net to be tested for next.
Claims (4)
1. a kind of varying head test block permeability coefficient tester, which is characterized in that including head cover, test block accommodating case and Heng Shuiweishui
Case；The head cover is made of thin conduit (1), tapering transition section (2) and head cover cavity (3)；The thin conduit (1) is to indicate scale
Hollow square tube is connect by AB glue with tapering transition section (2)；The tapering transition section (2) is that four pieces of trapezoidal poly (methyl methacrylate) plates are logical
It crosses AB glue to be spliced, and Nian Jie with head cover cavity (3)；The head cover cavity (3) is that four pieces of square poly (methyl methacrylate) plates pass through
AB glue is cementing mutually to be formed；One side of the head cover cavity (3) is equipped with water inlet (4)；The test block accommodating case is by holding
Case main body (6), sealing plate (7) and permeable stone (8) composition；The receiving box main body (6) is passed through by three pieces of square aluminium alloy plates
Bolt closely splices；The sealing plate (7) is connected by glass cement with box main body (6) is accommodated；The permeable stone (8) is flat on appearance
Case main body (6) bottom；The perseverance level water tank is made of water tank main body (10) and water vessel (12), the water tank main body (10)
It is five pieces of poly (methyl methacrylate) plates bonding without top container, for placing test block accommodating case；One side of the water tank main body (10)
Top be equipped with water outlet (11)；The water vessel (12) is located at below water outlet (11).
2. a kind of varying head test block permeability coefficient tester according to claim 1, which is characterized in that the water inlet
(4) it is located at the center of a side of head cover cavity (3), which is provided with through-hole, for being installed into flowing water Valve, passes in and out
Penstock is connected by hose with water source.
3. a kind of varying head test block permeability coefficient tester according to claim 1, which is characterized in that the head cover cavity
(3) poly (methyl methacrylate) plate bottom vehicle has concave step (5)；The box main body (6) and the top vehicle of sealing plate (7) of accommodating has convex
Step (9)；The head cover cavity (3) is stablized by the cooperation of concave step (5) and male step (9) is accommodating box main body (6)
And on sealing plate (7), head cover cavity (3), the gap accommodated between box main body (6), sealing plate (7) three are sealed using glass cement.
4. a kind of varying head test block permeability coefficient tester according to claim 1, which is characterized in that the accommodating case master
Mortar specimen, the gap between mortar specimen and receiving box main body (6) and sealing plate (7) are placed on permeable stone (8) in body (6)
It is sealed using liquid paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916120.1U CN207703681U (en) | 2017-12-31 | 2017-12-31 | Varying head test block permeability coefficient tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916120.1U CN207703681U (en) | 2017-12-31 | 2017-12-31 | Varying head test block permeability coefficient tester |
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| Publication Number | Publication Date |
|---|---|
| CN207703681U true CN207703681U (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721916120.1U Active CN207703681U (en) | 2017-12-31 | 2017-12-31 | Varying head test block permeability coefficient tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088780A (en) * | 2017-12-31 | 2018-05-29 | 浙江大学 | A kind of simple mortar specimen permeability coefficient tester |
| CN109060631A (en) * | 2018-09-07 | 2018-12-21 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
-
2017
- 2017-12-31 CN CN201721916120.1U patent/CN207703681U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088780A (en) * | 2017-12-31 | 2018-05-29 | 浙江大学 | A kind of simple mortar specimen permeability coefficient tester |
| CN109060631A (en) * | 2018-09-07 | 2018-12-21 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
| CN109060631B (en) * | 2018-09-07 | 2019-06-14 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
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