CN217277286U - High water level bubble light soil model test device - Google Patents
High water level bubble light soil model test device Download PDFInfo
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- CN217277286U CN217277286U CN202221049900.1U CN202221049900U CN217277286U CN 217277286 U CN217277286 U CN 217277286U CN 202221049900 U CN202221049900 U CN 202221049900U CN 217277286 U CN217277286 U CN 217277286U
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Abstract
The utility model relates to the field of test devices, in particular to a high-water-level bubble light soil model test device, which comprises a test box and a water inlet box, wherein the top of the test box is provided with the water inlet box for simulating the infiltration of water, and the bottom of the test box is provided with a water outlet; the test box is divided into five layers, the lowest layer is a soil foundation layer, and the four layers above the soil foundation layer are respectively a lower embankment layer, an upper embankment layer, a lower bed layer and an upper bed layer from bottom to top; soil basic unit, lower embankment layer, go up embankment layer, lower bed layer and last bed layer all are equipped with the amesdial. Compared with the prior art, the utility model discloses a simulation real environment, the internal material of proof box sees through the ya keli board and realizes visual, and the actual in service process that reduces the road bed has higher authenticity.
Description
Technical Field
The utility model relates to a test device field specifically provides a high water level bubble light soil model test device.
Background
The bubble light soil is widely concerned by people due to light weight, high strength and good fluidity, can effectively solve the problem of uneven settlement of a roadbed, and is widely applied to the fields of road engineering, underground engineering, municipal engineering and the like at present. When the bubble light soil is used as a roadbed or a lower foundation and in coastal areas, the underground water level rises due to rainfall or other factors, the bubble light soil is below the underground water level for a long time and is soaked in water, and the stress of an overlying structure is required to be greater than the buoyancy force applied to the bubble light soil to keep the stability of the structure.
The density of the bubble light soil is smaller than that of water, the number of pores is large, the mass is increased under the soaking condition, and the stability of the whole structure is influenced by the buoyancy effect of water, so that the research on the water absorption performance, the mass change and the anti-floating capacity of the bubble light soil is particularly important.
Disclosure of Invention
The utility model provides a to the not enough of above-mentioned prior art, provide a reasonable in design, simple structure, convenient to use, can be directly perceived clearly observe oozing under water and other high water level bubble light soil model test device who oozes.
The utility model provides a technical scheme that its technical problem adopted is:
a high-water-level bubble light soil model test device comprises a test box and a water inlet box, wherein the top of the test box is provided with the water inlet box for simulating the infiltration of water, and the bottom of the test box is provided with a water outlet;
the test box is divided into five layers, the lowest layer is a soil foundation layer, and the four layers above the soil foundation layer are respectively a lower embankment layer, an upper embankment layer, a lower bed layer and an upper bed layer from bottom to top;
the soil base layer, the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer are all provided with dial indicators.
Furthermore, one side of proof box is equipped with other infiltration case, other infiltration case is used for the other infiltration of simulation water, and the top of other infiltration case is equipped with the water filling port.
Furthermore, the side seepage water tank and the test chamber are arranged in equal height and equal width.
Furthermore, two dial indicators are arranged in the soil base layer, the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer, and the two dial indicators are symmetrically arranged.
Preferably, the dial indicators are in a pair, at least five pairs are arranged, and the five pairs of dial indicators are arranged along the length direction of the test box.
Furthermore, the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer are the same in height, and the soil base layer is lower than the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer.
Further, temperature sensors are arranged between the soil base layer and the lower embankment layer, between the lower embankment layer and the upper embankment layer, between the upper embankment layer and the lower embankment layer, and between the lower embankment layer and the upper embankment layer; soil basic unit, lower embankment layer, go up embankment layer and lower bed layer all are equipped with the settlement gauge.
Preferably, the test box is of a cuboid shape, acrylic plates are arranged on the front face and the rear face of the test box, an open box body structure is formed by steel plates on the bottom face of the test box, a detachable acrylic movable baffle is used on one side, away from the side water seepage box, of the test box to simulate a retaining wall, and angle steel and toughened glass are used on one side of the side water seepage box, of the test box.
Further, the distance between the dial indicator in the upper embankment layer and the dial indicator in the lower embankment layer, the distance between the dial indicator in the lower embankment layer and the dial indicator in the upper embankment layer, the distance between the dial indicator in the upper embankment layer and the dial indicator in the lower embankment layer, and the distance between the dial indicator in the lower embankment layer and the dial indicator in the soil base layer are the same.
The utility model discloses a high water level bubble light soil model test device compares with prior art, has following outstanding beneficial effect:
(1) the utility model discloses a set up the proof box and intake the case, intake the infiltration of case simulation water at the top installation of proof box under to the other infiltration of case simulation water of a side-mounting at the proof box, at soil foundation bed, lower embankment layer, go up embankment layer, the bed of following a way and the bed of going on a way fill in the soil with the same material in kind respectively, simulate real environment, the internal material of proof box sees through the ya keli board and realizes visual, the process of being on active service of real reduction road bed has higher authenticity.
(2) And a sensor and a settlement meter are arranged among layers in the test box, so that the change rule of stress and deformation along with time is monitored in real time, and the test data is more accurate.
The utility model has the advantages of reasonable design, simple structure, easy processing, convenient use, and capability of visually and clearly observing underwater infiltration and side infiltration.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a high water level bubble light soil model test device;
FIG. 2 is a schematic diagram of the embedding position of a dial indicator in a high water level bubble light soil model test device;
FIG. 3 is a schematic diagram of the sensor burying position of a high water level bubble light soil model test device;
FIG. 4 is a top view of a high water level bubble light soil model test apparatus.
The reference numerals in the drawings denote:
1. the device comprises a water inlet tank, 2, a test tank, 3, a soil base layer, 4, a lower embankment layer, 5, an upper embankment layer, 6, a lower bed layer, 7, an upper bed layer, 8, a side water seepage tank, 9, a water injection port, 10, a dial indicator, 11, a settlement gauge, 12 and a temperature sensor.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.
In the present invention, unless otherwise stated, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as viewed with reference to the drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.
A preferred embodiment is given below:
as shown in fig. 1 to 4, the high water level bubble lightweight soil model test device in this embodiment includes a test chamber 2 and a water inlet chamber 1, the water inlet chamber 1 is additionally installed at the top of the test chamber 2 to simulate infiltration of water, and a water outlet 13 is processed at the bottom of the test chamber 2.
The size of proof box 2 is long 3m, wide 1m, and high 2.5m, and the inferior gram force board is adopted to the proof box 2 front-back, and the bottom surface adopts the steel sheet to constitute the box structure of open type, and the proof box 2 left side uses detachable ya keli adjustable fender simulation barricade, and the angle steel and the former road bed of toughened glass simulation are used on the right side.
The interior of the test box 2 is divided into five layers, the lowest layer is a soil base layer 3, and four layers above the soil base layer 3 are respectively a lower embankment layer 4, an upper embankment layer 5, a lower embankment layer 6 and an upper embankment layer 7 from bottom to top. Wherein, the soil foundation layer 3, the lower embankment layer 4, the upper embankment layer 5, the lower embankment layer 6 and the upper embankment layer 7 are all provided with a dial indicator 10. In this embodiment, the height of the soil base layer 3 is 0.3 m, and the heights of the lower embankment layer 4, the upper embankment layer 5, the lower roadbed layer 6 and the upper roadbed layer 7 are all 0.5 m.
The right side of proof box 2 is equipped with other infiltration case 8, and other infiltration case 8 is used for simulating the other infiltration of water, and the top of other infiltration case 8 is equipped with water filling port 9. The side water seepage box 8 in the embodiment is set to be equal in height and width with the test box 2, and the length is 0.3 meter.
Soil basic unit 3, lower embankment layer 4, go up embankment layer 5, lower bed layer 6 and go up all being equipped with two amesdials 10 in the bed layer 7, two amesdials 10 bilateral symmetry set up. In the embodiment, five pairs of the dial indicators 10 are provided, wherein the first pair is symmetrically arranged in the upper embankment layer 7, the second pair is symmetrically arranged in the lower embankment layer 6, the third pair is symmetrically arranged in the upper embankment layer 5, the fourth pair is symmetrically arranged in the lower embankment layer 4, the fifth pair is symmetrically arranged in the soil base layer 3, and each pair of the dial indicators 10 is arranged in a row along the length direction of the test box 2.
In this embodiment, the lateral distance between the left dial gauge 10 in the soil base layer 3 and the left dial gauge 10 in the lower embankment layer 4 is 0.2 m, the lateral distance between the left dial gauge 10 in the lower embankment layer 4 and the left dial gauge 10 in the upper embankment layer 5 is 0.2 m, the lateral distance between the left dial gauge 10 in the upper embankment layer 5 and the left dial gauge 10 in the lower embankment layer 6 is 0.2 m, and the lateral distance between the left dial gauge 10 in the lower embankment layer 6 and the left dial gauge 10 in the upper embankment layer 7 is 0.2 m. The right dial indicator 10 is transversely distributed in each layer of the test box 2 in the same way and at a distance of 0.2 meter as the left dial indicator 10.
The utility model discloses a high water level bubble light soil model test device is when using, and is divided into five layers in proof box 2, and the lower layer is soil basic unit 3, and four layers more than soil basic unit 3 are embankment layer 4 down, embankment layer 5, bed layer 6 and the bed layer 7 of going on one's way down respectively by lower to upper.
The soil base layer 3 is compacted after filling sand soil and clay, and the upper four layers are respectively filled with cement-based bubble light soil, cement-fly ash-based bubble light soil, cement-red mud-based bubble light soil, cement and slag powder-based bubble light soil from bottom to top.
Firstly, manufacturing a soil foundation, pouring for 30cm, and after tamping is finished, carrying out static load pre-pressing for 30d to ensure 3 compaction degrees of a soil foundation layer (roadbed). After the soil subgrade is manufactured, the foamed light soil subgrade is subjected to layering and segmental pouring, the pouring thickness of each layer is 50cm, and the area of each segment is 1m 2 . And (4) sprinkling water and maintaining the covering geomembrane after the paving of each layer is finished, taking cores after 7d of maintenance, and continuously pouring the next layer after the quality inspection and acceptance passes.
Wherein, the roadbed is made of cement, slag powder, fly ash and red mud, and solid waste is doped, so that the energy-saving and carbon-reducing green development concept is met.
The test device in the embodiment is loaded continuously by hydraulic jacks in a grading manner, the initial load is 1kN, each grade is increased by 0.5kN, each grade of load acts for 1min, an electronic pressure sensor is placed under each hydraulic jack to read data, a rigid bearing plate is placed on a roadbed surface layer (an upper roadbed layer), the bearing plate is loaded in a piling manner for prepressing, and the roadbed is simulated to be uniformly loaded.
And monitoring the interior of the roadbed model by adopting a waterproof resistance type strain gauge and a miniature soil pressure box, and collecting the strain gauge and the miniature soil pressure box once every 8 hours. Roadbed deformation is measured by a dial indicator 10 and collected every 6 h. The temperature is collected by the temperature sensor 12 every 6 h.
And obtaining the settlement and deformation rules of the roadbed along with the change of time and a stress-strain relation diagram according to the monitored data, and evaluating the service capacity of the roadbed under the high water level condition according to the obtained data.
The above-mentioned embodiments are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A high water level bubble light soil model test device is characterized by comprising a test box and a water inlet box, wherein the top of the test box is provided with the water inlet box for simulating the infiltration of water, and the bottom of the test box is provided with a water outlet;
the test box is divided into five layers, the lowest layer is a soil foundation layer, and the four layers above the soil foundation layer are respectively a lower embankment layer, an upper embankment layer, a lower bed layer and an upper bed layer from bottom to top;
the soil base layer, the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer are all provided with dial indicators.
2. The high water level bubble light soil model test device according to claim 1, wherein a side seepage water tank is arranged on one side of the test box and used for simulating side seepage of water, and a water filling port is arranged at the top of the side seepage water tank.
3. The high water level bubble light soil model test device of claim 2, wherein the side infiltration water tank and the test chamber are arranged in equal height and equal width.
4. The high water level bubble light soil model test device according to claim 1, 2 or 3, wherein two dial indicators are arranged in the soil base layer, the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer, and the two dial indicators are symmetrically arranged.
5. The high water level bubble lightweight soil model test device according to claim 4, wherein the dial indicators are arranged in pairs, at least five pairs are arranged, and the five pairs of the dial indicators are arranged along the length direction of the test box.
6. The high water level bubble light soil model test device according to claim 1, wherein the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer have the same height, and the soil base layer has a lower height than the lower embankment layer, the upper embankment layer, the lower embankment layer and the upper embankment layer.
7. The high water level bubble light soil model test device according to claim 1, wherein temperature sensors are arranged between the soil base layer and the lower embankment layer, between the lower embankment layer and the upper embankment layer, between the upper embankment layer and the lower embankment layer, and between the lower embankment layer and the upper embankment layer; soil basic unit, lower embankment layer, go up embankment layer and lower bed layer all are equipped with the settlement gauge.
8. The high water level bubble light soil model test device as claimed in claim 2 or 3, wherein the test box is a cuboid, acrylic plates are adopted on the front and back surfaces, an open box structure is formed by steel plates on the bottom surface, a detachable acrylic movable baffle is used on one side of the test box far away from the side infiltration tank to simulate a retaining wall, and angle steel and toughened glass are used on one side of the side infiltration tank.
9. The high water level bubble light soil model test device according to claim 1, wherein the distance between the dial gauge in the upper embankment layer and the dial gauge in the lower embankment layer, the distance between the dial gauge in the lower embankment layer and the dial gauge in the upper embankment layer, the distance between the dial gauge in the upper embankment layer and the dial gauge in the lower embankment layer, and the distance between the dial gauge in the lower embankment layer and the dial gauge in the soil foundation layer are the same.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221049900.1U CN217277286U (en) | 2022-05-05 | 2022-05-05 | High water level bubble light soil model test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221049900.1U CN217277286U (en) | 2022-05-05 | 2022-05-05 | High water level bubble light soil model test device |
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| CN217277286U true CN217277286U (en) | 2022-08-23 |
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| CN202221049900.1U Active CN217277286U (en) | 2022-05-05 | 2022-05-05 | High water level bubble light soil model test device |
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- 2022-05-05 CN CN202221049900.1U patent/CN217277286U/en active Active
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