CN110221038A - A kind of piping in foundation pit simulation test device and test method - Google Patents
A kind of piping in foundation pit simulation test device and test method Download PDFInfo
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- CN110221038A CN110221038A CN201910391065.6A CN201910391065A CN110221038A CN 110221038 A CN110221038 A CN 110221038A CN 201910391065 A CN201910391065 A CN 201910391065A CN 110221038 A CN110221038 A CN 110221038A
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- water
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- piping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The present invention relates to Architectural Equipment technical fields, it is intended to provide a kind of piping in foundation pit simulation test device and test method, its key points of the technical solution are that, including experiment casing, one end of the experiment casing is equipped with inlet tank, the lateral wall of the inlet tank is connected with the end wall of experiment casing, the lower end of the inlet tank and experiment casing junction is provided with water inlet, the upper surface of the inlet tank is provided with water filling port, the experiment casing is equipped with water tank far from one end of inlet tank, the lateral wall of the water tank and the lateral wall of experiment casing are cross-linked, the junction of the water tank and experiment casing is provided with water outlet.This piping in foundation pit simulation test device and test method have the advantages that piping test can be carried out for foundation pit.
Description
Technical field
The present invention relates to Architectural Equipment technical field, in particular to a kind of piping in foundation pit simulation test device and test side
Method.
Background technique
Piping in foundation pit simulated experiment is that a kind of simulation test of Piping phenomenon is directed in building trade, passes through analysis test knot
Fruit can formulate corresponding treatment measures to Piping phenomenon.
Notification number is that the Chinese patent of CN203706520U discloses a kind of teaching and experiment equipment for demonstrating Piping phenomenon, packet
Include inhalant region, water inlet, soil body area, gauze layer, exhalant region and water outlet, the inhalant region is vertically arranged, soil body area and go out
Pool be it is horizontally disposed, soil body area outer wall is hyaline layer, and the soil body area one end be connected to inhalant region bottom end, the other end be discharged
The connectivity part of area's connection, soil body area and inhalant region, exhalant region is equipped with gauze layer, and the water inlet is located at inhalant region top, out
The mouth of a river is located at the phase backside of exhalant region with soil body area connecting pin.
The teaching and experiment equipment of this demonstration Piping phenomenon, is simulated, but soil body area is single for Piping phenomenon
And the soil layer above it is less, so be difficult to dig foundation pit and simulation test is carried out to the piping of foundation pit, therefore it is to be improved.
Summary of the invention
The object of the present invention is to provide a kind of piping in foundation pit simulation test device and test method, have can for foundation pit into
The advantages of row piping is tested.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of piping in foundation pit simulation test device, including experiment casing, one end of the experiment casing are equipped with inlet tank, it is described into
The lateral wall of water tank is connected with the end wall of experiment casing, and the lower end of the inlet tank and experiment casing junction is provided with into water
Mouthful, the upper surface of the inlet tank is provided with water filling port, and the experiment casing is equipped with water tank far from one end of inlet tank, it is described go out
The lateral wall of water tank and the lateral wall of experiment casing are cross-linked, and the junction of the water tank and experiment casing is provided with water outlet
Mouthful.
By using above-mentioned technical proposal, soil layer is added in experiment casing, then is filled the water out of water filling port to inlet tank, water
Experiment casing is flowed into out of water inlet, then flows out to water tank from water outlet, and such a motion process simulates underground water
Flow process；Water flow is by constantly flowing to water outlet from water inlet, thus the constantly intracorporal soil layer of impact test case, until
Water flow flows upwards out in experiment casing.To complete the process of simulation piping.
Further, stationary grizzly is respectively arranged at the inlet and outlet, the stationary grizzly includes in square
The end to end braced frame of shape and several levers for being vertically to braced frame, the both ends of the lever be respectively fixedly connected in
Braced frame.
By using above-mentioned technical proposal, stationary grizzly limits penetrating for big partial size soil in experiment casing, to subtract
Lacked subsoil under the action of water flow, caused by be lost, to destroy structure.
Further, graduation mark is provided on the lateral wall of the inlet tank.
By using above-mentioned technical proposal, the water surface is controlled in inlet tank in the specific location of graduation mark, adjustable intake
Hydraulic pressure out, to realize the simulation to underground water hydraulic pressure.
Further, circulating water pipe is provided in the inlet tank, one end of the circulating water pipe is connected to inlet tank
Upper surface, the circulating water pipe are connected to the lateral wall of outlet pipe far from one end of inlet tank, are provided on the circulating water pipe
Pressure pump.
By using above-mentioned technical proposal, the setting of circulating water pipe and pressure pump, by the water in water tank be evacuated into
In water tank, to realize recycling for water resource.
Further, the upper surface of the water tank is provided with cleaning opening, and the cleaning opening of the water tank is provided with
Cleaner plate, the cleaner plate are removably connected to water tank.
By using above-mentioned technical proposal, when solid muddiness object is more in water tank, operator opens cleaner plate, real
Salvaging cleaning now is carried out to the inside of water tank.
Further, the lower surface of the inlet tank is relatively set with long foot, and the lower surface of the water tank is opposite to be set
It is equipped with short stabilizer blade.
By using above-mentioned technical proposal, the setting of long foot and short stabilizer blade reduces the contact area directly with ground,
So that the present invention can steadily be stood on ground, therefore improve the integrally-built stability of the present invention.
Further, the lower surface of the inlet tank is equipped with the first link block, and one end of first link block is fixed to be connected
It is connected to inlet tank, first link block is provided with the first threaded hole, the first threaded hole internal screw thread far from one end of inlet tank
It is connected with the first screw rod, the threaded one end of the long foot is connected to the first screw rod and is connected to the first link block far from water inlet
The lower surface of one end of case, the water tank is equipped with the second link block, and one end of second link block is fixedly connected on water outlet
Case, second link block are provided with the second threaded hole far from one end of water tank, and the second threaded hole internal screw thread is connected with
The threaded one end of two screw rods, the short stabilizer blade is connected to the second screw rod and is connected to one of the second link block far from water tank
End.
By using above-mentioned technical proposal, long foot and short stabilizer blade difference are detachable, so just can be in long foot and short branch
It when foot is stood for a long time, is replaced in time, to reduce the security risk of long foot and the fracture of short stabilizer blade.
Further, the cleaner plate is removably connected with moving handle away from the upper surface of water tank.
By using above-mentioned technical proposal, the surface of cleaner plate is relatively smooth, the more difficult crawl cleaner plate of operator, therefore
The setting of moving handle facilitates operator and opens cleaner plate, to improve the cleaning efficiency of water tank.
A kind of test method of piping in foundation pit simulation test device described above, includes the following steps:
S1, the non-stickiness soil layer that a break lacks median diameter, the upper surface position of non-stickiness soil layer are laid in the bottom of experiment casing
In the top of stationary grizzly；
S2, a laminate layer is covered in the top of non-stickiness soil layer, is provided with several through holes up and down on plate layer；
S3, it is laid with one layer of rock-soil layer in the top of plate layer, foundation pit is dug out in the upper surface of rock-soil layer straight down；
S4, the water filling in inlet tank adjust the hydraulic pressure of water inlet by controlling the height of the water surface；
Water in S5, inlet tank is flow in water tank, opens pressure pump and the water in water tank is recycled in inlet tank.
By using above-mentioned technical proposal, the setting of non-stickiness soil layer and rock-soil layer truly reduces architectural environment
In geology, thus in true simulation foundation pit the phenomenon that piping；And the setting of plate layer and through hole, be conducive to concentrated flow
Impact by through hole to rock-soil layer, to be more easier to simulate Piping phenomenon.
In conclusion the invention has the following advantages:
1. water flow flows into non-stickiness soil layer from the water inlet of inlet tank, then flow to water tank from the water outlet of water tank；And lead to
The height for crossing the water surface in control inlet tank, controls the hydraulic pressure of water inlet, so that the flow regime of underground water is truly simulated,
To more accurately show Piping phenomenon.
2. inlet tank is recycled to, to realize under the action of the water in water tank is by circulating water pipe and pressure pump
Water resource recycles, to achieve the purpose that save water resource.
Detailed description of the invention
Fig. 1 is for embodying whole schematic diagram；
Fig. 2 is the schematic diagram for embodying non-stickiness soil layer.
In figure, 1, experiment casing；2, inlet tank；21, water inlet；22, water filling port；23, graduation mark；3, water tank；31, go out
The mouth of a river；32, cleaning opening；321, cleaner plate；3211, moving handle；4, stationary grizzly；41, braced frame；42, lever；5, it follows
Ring water pipe；51, pressure pump；6, long foot；61, the first link block；611, the first threaded hole；612, the first screw rod；7, short branch
Foot；71, the second link block；711, the second threaded hole；712, the second screw rod；8, non-stickiness soil layer；9, plate layer；91, through hole；
10, rock-soil layer；101, foundation pit.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Implement 1: a kind of piping in foundation pit simulation test device and test method, as depicted in figs. 1 and 2, including experiment casing
1, one end of experiment casing 1 is provided with inlet tank 2, and the lateral wall of inlet tank 2 and the end wall of experiment casing 1 are integrally formed.Water inlet
The lower end of case 2 and 1 junction of experiment casing is provided with water inlet 21, to enter experiment casing 1 for water flow.
As shown in Fig. 2, the upper surface of inlet tank 2 is provided with water filling port 22, by adding water in water filling port 22, in order to more preferable
Control inlet tank 2 in the water surface height, to realize control to hydraulic pressure at water inlet 21.
As shown in Fig. 2, chamber is equipped with water tank 3, the lateral wall of water tank 3 and chamber far from one end of inlet tank 2
Body 1 is staggeredly integrally formed.The junction of water tank 3 and experiment casing 1 is provided with water outlet 31, the height and water inlet of water outlet 31
21 height is equal.The setting of water outlet 31, in order to which the water of the outflow of water inlet 21 is discharged.Water flow in experiment casing 1 from into
The mouth of a river 21 from water outlet 31 into and going out, to simulate the flowing of underground water.
As shown in Figure 2, it is preferred that inlet tank 2, experiment casing 1 and water tank 3 are all that transparent tempered glass is made, side
Just observation of the experimenter to Piping phenomenon.Graduation mark 23 is provided on the lateral wall of inlet tank 2, experimenter is in past inlet tank
In 2 when water filling, by the position of the water surface and graduation mark 23, the inflow in inlet tank 2 is determined, to control at water inlet 21
Hydraulic pressure, in order to preferably simulate the Piping phenomenon that the underground water of different depth generates.
As shown in Fig. 2, the upper surface of water tank 3 is provided with cleaning opening 32, it is provided at the cleaning opening 32 of water tank 3 clear
Clean plate 321, cleaner plate 321 are placed on the upper end of water tank 3.When observing that solid muddiness object is more in water tank 3, cleaning is opened
Plate 321 simultaneously salvages solid muddiness object, to realize the cleaning inside water tank 3.
As shown in Fig. 2, cleaner plate 321 has moving handle 3211, cleaner plate away from the fixed splicing in the upper surface of water tank 3
321 surface is smooth to be not easy to be grabbed by people, so the setting of moving handle 3211, facilitates operator and quickly open cleaner plate
321, to improve the cleaning efficiency of water tank 3.
As shown in Fig. 2, being respectively arranged with stationary grizzly 4 at water inlet 21 and water outlet 31, stationary grizzly 4 includes in rectangle
End to end braced frame 41 and several levers 42 for being vertically to braced frame 41, the upper and lower ends of lever 42 be respectively welded in
On the upper sheer pole of braced frame 41.The setting of stationary grizzly 4 so that the biggish particulate matter in the inside of experiment casing 1 be not easy across,
And the non-cohesive soil of small particle can readily pass through stationary grizzly 4, just be able to achieve the smooth operation of bottom water flow in this way.
As shown in Fig. 2, being provided with circulating water pipe 5 in inlet tank 2, one end of circulating water pipe 5 is by flanged joint in water inlet
The upper surface of case 2, the one end of circulating water pipe 5 far from inlet tank 2 is by flanged joint in the lateral wall of outlet pipe, circulating water pipe 5
There is pressure pump 51 by flanged joint.Start pressure pump 51, the water in outlet pipe is again introduced by circulating water pipe 5 into water
Case 2, to realize recycling for water resource.
As shown in Fig. 2, the lower surface of inlet tank 2 is relatively set with long foot 6, the lower surface of water tank 3 is relatively set with
Short stabilizer blade 7.The setting of long foot 6 and short stabilizer blade 7 is allowed the invention to steadily stand on ground, just be improved in this way
The integrally-built stability of the present invention.
As shown in Fig. 2, the lower surface of inlet tank 2 is equipped with the first link block 61, one end of the first link block 61 is fixed to be glued
In inlet tank 2, the first link block 61 is provided with the first threaded hole 611,611 internal screw thread of the first threaded hole far from one end of inlet tank 2
It is connected with the first screw rod 612.The threaded one end of long foot 6 is connected to the first screw rod 612 and is connected to the first link block 61 far
One end from inlet tank 2.
As shown in Fig. 2, the lower surface of water tank 3 is equipped with the second link block 71, one end of the second link block 71 is fixed to be glued
In water tank 3, the second link block 71 is provided with the second threaded hole 711,711 internal screw thread of the second threaded hole far from one end of water tank 3
It is connected with the second screw rod 712.The threaded one end of short stabilizer blade 7 is connected to the second screw rod 712 and is connected to the second link block 71 far
Separate out one end of water tank 3.
Embodiment 2: a kind of test method of piping in foundation pit simulation test device, the specific steps of which are as follows:
The non-stickiness soil layer 8 that a break lacks median diameter, the thickness of non-stickiness soil layer 8 are laid in the bottom of experiment casing 1 first
The slightly above height of stationary grizzly 4, to reduce the influence by the water flow of stationary grizzly 4 to upper layer of soil.
A laminate layer 9 is covered in the top of non-stickiness soil layer 8, several through holes 91 up and down is provided on plate layer 9, has
Upper layer is significantly impacted by through hole 91 conducive to concentrated flow, to be more easier to generate Piping phenomenon.
It is laid with one layer of rock-soil layer 10 in the top of plate layer 9, with the soil at simulant building soil, and in the upper of rock-soil layer 10
Foundation pit 101 is dug out straight down in surface.
The water filling in inlet tank 2, by controlling the height of the water surface, to realize the adjusting to hydraulic pressure at water inlet 21, thus
More really simulate the water flow of underground water.
Water flow in inlet tank 2 flow to water tank 3 by non-stickiness soil layer 8, opens pressure pump 51 and makes in water tank 3
Water again by circulation conveying to inlet tank 2.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (9)
1. a kind of piping in foundation pit simulation test device, including experiment casing (1), it is characterised in that: the one of the experiment casing (1)
End is equipped with inlet tank (2), and the lateral wall of the inlet tank (2) is connected with the end wall of experiment casing (1), the inlet tank (2)
It being provided with water inlet (21) with the lower end of experiment casing (1) junction, the upper surface of the inlet tank (2) is provided with water filling port (22),
The experiment casing (1) is equipped with water tank (3), the lateral wall of the water tank (3) and chamber far from the one end of inlet tank (2)
The lateral wall of body (1) is cross-linked, and the junction of the water tank (3) and experiment casing (1) is provided with water outlet (31).
2. a kind of piping in foundation pit simulation test device according to claim 1, it is characterised in that: the water inlet (21) and
It is respectively arranged at water outlet (31) stationary grizzly (4), the stationary grizzly (4) includes rectangular end to end support frame
Frame (41) and several levers (42) for being vertically to braced frame (41), the both ends of the lever (42) are respectively fixedly connected in support
Frame (41).
3. a kind of piping in foundation pit simulation test device according to claim 1, it is characterised in that: the inlet tank (2)
Graduation mark (23) are provided on lateral wall.
4. a kind of piping in foundation pit simulation test device according to claim 1, it is characterised in that: on the inlet tank (2)
It is provided with circulating water pipe (5), one end of the circulating water pipe (5) is connected to the upper surface of inlet tank (2), the circulating water pipe
(5) one end far from inlet tank (2) is connected to the lateral wall of outlet pipe, is provided with pressure pump on the circulating water pipe (5)
(51)。
5. a kind of piping in foundation pit simulation test device according to claim 1, it is characterised in that: the water tank (3)
Upper surface is provided with cleaning opening (32), is provided with cleaner plate (321) at the cleaning opening (32) of the water tank (3), described clear
Clean plate (321) is removably connected to water tank (3).
6. a kind of piping in foundation pit simulation test device according to claim 1, it is characterised in that: the inlet tank (2)
Lower surface is relatively set with long foot (6), and the lower surface of the water tank (3) is relatively set with short stabilizer blade (7).
7. a kind of piping in foundation pit simulation test device according to claim 6, it is characterised in that: the inlet tank (2)
Lower surface is equipped with the first link block (61), and one end of first link block (61) is fixedly connected on inlet tank (2), and described first
Link block (61) is provided with the first threaded hole (611) far from the one end of inlet tank (2), and the first threaded hole (611) internal screw thread connects
It is connected to the first screw rod (612), the threaded one end of the long foot (6) is connected to the first screw rod (612) and is connected to the first company
The one end of block (61) far from inlet tank (2) is connect, the lower surface of the water tank (3) is equipped with the second link block (71), and described second
One end of link block (71) is fixedly connected on water tank (3), and second link block (71) is provided with far from the one end of water tank (3)
Second threaded hole (711), the second threaded hole (711) internal screw thread are connected with the second screw rod (712), the short stabilizer blade (7)
Threaded one end is connected to the second screw rod (712) and is connected to the one end of the second link block (71) far from water tank (3).
8. a kind of piping in foundation pit simulation test device according to claim 5, it is characterised in that: the cleaner plate (321)
Moving handle (3211) are removably connected with away from the upper surface of water tank (3).
9. a kind of a kind of test method of piping in foundation pit simulation test device as described in claim 1-8 any one, special
Sign is: including the following steps:
S1, it is laid with the non-stickiness soil layer (8) that a break lacks median diameter in the bottom of experiment casing (1), non-stickiness soil layer (8)
Upper surface is located at the top of stationary grizzly (4)；
S2, a laminate layer (9) is covered in the top of non-stickiness soil layer (8), is provided with several through holes up and down on plate layer (9)
(91)；
S3, it is laid with one layer of rock-soil layer (10) in the top of plate layer (9), foundation pit is dug out in the upper surface of rock-soil layer (10) straight down
(101)；
S4, the water filling in inlet tank (2) adjust the hydraulic pressure at water inlet (21) by controlling the height of the water surface；
Water in S5, inlet tank (2) is flow in water tank (3), opens pressure pump (51) and the water in water tank (3) is recycled
In to inlet tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910391065.6A CN110221038A (en) | 2019-05-11 | 2019-05-11 | A kind of piping in foundation pit simulation test device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910391065.6A CN110221038A (en) | 2019-05-11 | 2019-05-11 | A kind of piping in foundation pit simulation test device and test method |
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| CN110221038A true CN110221038A (en) | 2019-09-10 |
Family
ID=67820974
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| CN201910391065.6A Pending CN110221038A (en) | 2019-05-11 | 2019-05-11 | A kind of piping in foundation pit simulation test device and test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834406A (en) * | 2021-01-08 | 2021-05-25 | 南京福欧地下空间数据科技有限公司 | Foundation pit piping image acquisition device and use method |
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| CN112834406A (en) * | 2021-01-08 | 2021-05-25 | 南京福欧地下空间数据科技有限公司 | Foundation pit piping image acquisition device and use method |
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Application publication date: 20190910 |