CN112484961A - Test box body for simulating underground engineering anti-floating - Google Patents
Test box body for simulating underground engineering anti-floating Download PDFInfo
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- CN112484961A CN112484961A CN202011377295.6A CN202011377295A CN112484961A CN 112484961 A CN112484961 A CN 112484961A CN 202011377295 A CN202011377295 A CN 202011377295A CN 112484961 A CN112484961 A CN 112484961A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention belongs to the technical field of geotechnical engineering, and particularly relates to a test box body for simulating underground engineering anti-floating, which comprises a containing box and a paving assembly, wherein the paving assembly is arranged above the containing box and is used for homogenizing and compacting a soil sample, and the test box body comprises: a bracket arranged on the periphery of the accommodating box; the electric turntable is arranged on the bracket and is positioned right above the accommodating box; a cylinder body of the hydraulic cylinder I is vertically fixed with a rotary table of the electric rotary table; the pressing block is fixedly connected to the tail end of a piston rod of the first hydraulic cylinder; the material homogenizing assembly is arranged on the pressing block and comprises a second hydraulic cylinder fixed on the pressing block, the cylinder body of the second hydraulic cylinder is parallel to the cylinder body of the first hydraulic cylinder, the end part of a piston rod of the second hydraulic cylinder is fixedly connected with a scraper, and the scraper is embedded in a slot opening formed in the pressing block. The invention has the advantages of high true reduction degree of the test, simple and reliable structure, strong practicability and popularization value, and reduces the labor intensity of workers.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering, and particularly relates to a test box for simulating underground engineering anti-floating.
Background
The urban construction pace is accelerated, and the development of underground engineering is promoted. The underground construction is provided with the construction engineering, and the problem of anti-floating of the underground construction engineering is important to solve due to the existence of underground water. In application number 201920167697.X, in the utility model patent document that the application date is 2019.01.30, a name is provided and is used for simulating the anti experimental box that floats of underground works, it adopts the soil layer of this internal different lithology that sets up of box, set up first building module in the soil layer simultaneously, carry out the side direction water supply replenishment to each soil layer in the experimental box through a plurality of side direction aqueducts, simulate the side direction hydrodynamic force of the groundwater runoff of true soil layer, for realizing that anti floating simulation test provides more accurate site environment simulation under the dynamic water pressure condition, thereby can carry out the influence research test of groundwater to underground building structure buoyancy of different occurrence states, the underground building structure is experimental to the reaction research that groundwater produced and pore water pressure monitoring test in the cohesive soil layer. However, the whole preparation work of the simulation test needs manual work, when a soil layer is prepared, the soil layer is difficult to homogenize even using tools due to the fact that the height of the box body is too high, meanwhile, the soil layer is manually poured into the soil layer and then is manually processed, so that the pressure between the soil layers cannot be attached to an actual simulation environment, the pressure gap coefficient is difficult to approach the actual simulation environment, and therefore the true reduction degree of the test is poor.
Disclosure of Invention
In view of the above, the present invention provides a test box for simulating the anti-floating of underground engineering, so as to solve the deficiencies in the prior art.
The technical scheme of the invention is as follows:
a test box for simulating underground works is anti superficial, includes:
the containing box is used for containing the soil sample and the building model buried in the soil sample;
the subassembly that paves, set up in the top of holding the case for with soil sample homogenization treatment and compaction, include:
a holder provided on the periphery of the accommodating case;
the electric turntable is arranged on the bracket and is positioned right above the accommodating box;
a cylinder body of the hydraulic cylinder I is vertically fixed with a rotary table of the electric rotary table;
the pressing block is fixedly connected to the tail end of a piston rod of the first hydraulic cylinder;
the material homogenizing assembly is arranged on the pressing block and comprises a second hydraulic cylinder fixed on the pressing block, the cylinder body of the second hydraulic cylinder is parallel to the cylinder body of the first hydraulic cylinder, the end part of a piston rod of the second hydraulic cylinder is fixedly connected with a scraper, and the scraper is embedded in a slot opening formed in the pressing block.
Preferably, the two height-adjustable supporting columns are respectively arranged on two sides of the accommodating box, and the two supporting columns are connected with the accommodating box through rotating shafts;
and the height-adjustable ejector rod is positioned between the two supporting columns, and one end of the ejector rod is hinged with the upper part of the containing box.
Preferably, the containing box is further provided with a drainage structure for providing circulating running water test conditions.
Preferably, the drainage structure comprises:
the ring body and the accommodating box slide relatively and are in dynamic seal, two first through holes are symmetrically formed in the ring body, a plurality of second through holes are uniformly formed in the side wall of the accommodating box covered by the ring body, and the second through holes are selectively communicated with the first through holes; the water tank is internally provided with a water tank, and the water tank is internally provided with a water inlet; the other through hole I is communicated with the water tank through a pipeline II, and a speed regulating valve for regulating water flow is arranged on the pipeline I.
Preferably, the ring body comprises an annular ring, the two through holes I are symmetrically formed in the annular ring, two grooves are formed in the inner wall of the annular ring, the two grooves are located in the upper portion and the lower portion of the annular ring respectively, and the grooves are matched with annular bosses in the side wall of the containing box.
Preferably, a handheld part is arranged on the ring body.
Preferably, a sealing member is arranged in the groove.
Compared with the prior art, the test box body for simulating the underground engineering anti-floating provided by the invention has the advantages that when a soil layer is prepared, the soil layer can be homogenized and compacted by the aid of the paving assembly, so that the pressure between the soil layers is attached to an actual simulation environment, and the pressure gap coefficient is close to the actual simulation environment, so that the true reduction degree of the test is high, the operation replaces manpower, the preparation work of the test is greatly reduced, the labor intensity of workers is reduced, and meanwhile, the test box body is simple and reliable in structure, strong in practicability and worthy of popularization.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a front view of the ring structure of the present invention;
FIG. 3 is a top view of the ring structure of the present invention;
FIG. 4 is a cross-sectional view of a ring structure of the present invention.
Detailed Description
The invention provides a test box body for simulating the anti-floating of underground engineering, which is described below by combining the structural schematic diagrams of figures 1 to 4.
Example 1
As shown in fig. 1, the test box for simulating underground engineering anti-floating provided by the invention comprises a containing box 4 for containing a soil sample and a building model buried in the soil sample, a paving assembly for homogenizing and compacting the soil sample is arranged above the containing box 4, and the structure of the paving assembly comprises:
the support 11 of setting on holding case 4 week side, fixed electric turntable 8 on the support 11, electric turntable 8 is located and holds case 4 directly over, is provided with pneumatic cylinder 7 below electric turntable 8, and the cylinder body of pneumatic cylinder 7 is fixed perpendicularly with electric turntable 8's carousel, and the terminal fixed connection briquetting 9 of the piston rod of pneumatic cylinder 7. The pressing block 9 is provided with a material homogenizing component.
Preferably, the material homogenizing assembly comprises a second hydraulic cylinder 6 fixed on the pressing block 9, the cylinder body of the second hydraulic cylinder 6 is parallel to the cylinder body of the first hydraulic cylinder 7, the end part of the piston rod of the second hydraulic cylinder 6 is fixedly connected with a scraper 5, and the scraper 5 is embedded in a slot opening in the pressing block 9.
When in use, the first hydraulic cylinder 7 can be started, the piston rod of the first hydraulic cylinder 7 is extended to a position close to the surface of the soil sample and then stopped, then the second hydraulic cylinder 6 is started to enable the scraper 5 to extend out of the lower surface of the pressing block 9 from the slot opening on the pressing block 9 and then stop, the electric turntable 8 is started to drive the scraper 5 to rotate, the scraper 5 is utilized to scrape the soil sample, then the second hydraulic cylinder 6 is started, the piston rod of the second hydraulic cylinder 6 is reset, so that the scraper 5 retracts into the slot opening formed on the pressing block 9, the lower surface of the scraper 5 is flush with the lower surface of the pressing block 9, then, the first hydraulic cylinder 7 is started to control the piston rod to extend, retract, extend and retract for a plurality of times, make briquetting 9 repeatedly act on the upper surface of the soil sample of strickleing off for the soil sample compaction, pressure and actual simulation environment laminating between the soil layer, the pressure gap coefficient is close to actual simulation environment.
Example 2
As a further optimization scheme on the basis of embodiment 1, in order to improve the adaptability of the device, the overall test capacity is increased, and the containing box 4 is further provided with a drainage structure for providing a circulating flowing water test condition, specifically, the drainage structure comprises:
a plurality of rings 3 of suit outside holding box 4, ring 3 and holding box 4 relative slip and movive seal, and the movive seal is realized through annular sealing member. Two through holes I302 are symmetrically formed in the ring body 3, a plurality of through holes II are uniformly formed in the side wall of the containing box 4 covered by the ring body 3, and the through holes II are selectively communicated with the through holes I302; a first through hole 302 is communicated with one end of a first pipeline, and the other end of the first pipeline is communicated with a water pump arranged outside the water tank 1; the other through hole I302 is communicated with the water tank 1 through a pipeline II, and a speed regulating valve 2 for regulating water flow is arranged on the pipeline I.
Specifically, as shown in fig. 2 to 4, the ring body 3 includes an annular ring 301, two through holes 302 are symmetrically formed in the annular ring 301, two grooves 303 are formed in the inner wall of the annular ring 301, the two grooves 303 are respectively located at the upper portion and the lower portion of the annular ring 301, and the grooves 303 are matched with annular bosses on the side wall of the accommodating box 4.
Preferably, be provided with handheld portion on the ring body 3, through handheld portion can be convenient rotate ring body 3 for through-hole two on the ring body 3 and the optional intercommunication of through-hole 302, lead to after the circulation moves water, form the effort to the equidirectional of architectural model, so that test architectural model receives the atress condition under the condition that hydrodynamic force assaulted in the equidirectional.
Preferably, the seal is disposed within the groove 303.
Example 3
As a further optimization scheme on the basis of the embodiment 2, in order to reduce the labor intensity of workers in the process of changing soil samples, two height-adjustable supporting columns 12 are additionally arranged on the device and are respectively arranged at two sides of the accommodating box 4, the accommodating box 4 is connected between the two supporting columns 12 through a rotating shaft, and a height-adjustable ejector rod 13 is positioned between the two supporting columns 12, and one end of the ejector rod is hinged with the upper part of the accommodating box 4.
When loading soil sample and compaction soil sample, can adjust supporting column 12 and ejector pin 13 to the low level, convenient operation, when empting soil sample and test process, can adjust supporting column 12 and ejector pin 13 to the high level. When dumping the soil sample, slowly stretch out ejector pin 13, withstand one side of holding box 4 and slowly overturn to the opposite side, the upset in-process makes the soil sample pour out.
According to the test box body for simulating the underground engineering anti-floating, when a soil layer is prepared, the soil layer can be homogenized and compacted by the aid of the paving assembly, so that the pressure between the soil layers is attached to an actual simulation environment, and the pressure gap coefficient is close to the actual simulation environment, so that the true reduction degree of the test is high, the operation replaces manpower, the preparation work of the test is greatly reduced, the labor intensity of workers is reduced, and meanwhile, the test box body is simple and reliable in structure, high in practicability and worthy of popularization.
The above disclosure is only for the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a test box for simulating anti superficial of underground works which characterized in that includes:
the containing box (4) is used for containing a soil sample and a building model buried in the soil sample;
a spreading assembly, arranged above the containment box (4), for homogenizing and compacting a soil sample, comprising:
a bracket (11) provided on the periphery of the housing box (4);
the electric rotating disc (8) is arranged on the bracket (11) and is positioned right above the accommodating box (4);
a first hydraulic cylinder (7), the cylinder body of which is vertically fixed with the rotary plate of the electric rotary plate (8);
the pressing block (9) is fixedly connected to the tail end of a piston rod of the first hydraulic cylinder (7);
the material homogenizing assembly is arranged on the pressing block (9) and comprises a second hydraulic cylinder (6) fixed on the pressing block (9), the cylinder body of the second hydraulic cylinder (6) is parallel to the cylinder body of the first hydraulic cylinder (7), the end part of the piston rod of the second hydraulic cylinder (6) is fixedly connected with the scraper (5), and the scraper (5) is embedded in a slot opening formed in the pressing block (9).
2. The test box body for simulating the anti-floating of the underground engineering according to the claim 1, characterized in that, two height-adjustable supporting columns (12) are respectively arranged at two sides of the containing box (4), and the two supporting columns (12) are connected with the containing box (4) through a rotating shaft;
and the ejector rod (13) with adjustable height is positioned between the two supporting columns (12), and one end of the ejector rod is hinged with the upper part of the containing box (4).
3. A test box body for simulating underground engineering anti-floating according to claim 1, characterized in that the containing box (4) is further provided with a drainage structure for providing circulating flowing water test conditions.
4. A test box for simulating underground works anti-floating according to claim 3, characterized in that the drainage structure comprises:
the ring bodies (3) are sleeved outside the containing box (4), the ring bodies (3) and the containing box (4) slide relatively and are sealed in a moving mode, two first through holes (302) are symmetrically formed in the ring bodies (3), a plurality of second through holes are uniformly formed in the side wall of the containing box (4) covered by the ring bodies (3), and the second through holes are selectively communicated with the first through holes (302); a first through hole (302) is communicated with one end of a first pipeline, and the other end of the first pipeline is communicated with a water pump arranged outside the water tank (1); the other through hole I (302) is communicated with the water tank (1) through a pipeline II, and a speed regulating valve (2) for regulating water flow is arranged on the pipeline I.
5. The test box body for simulating the anti-floating of the underground engineering according to claim 1, wherein the ring body (3) comprises an annular ring (301), two first through holes (302) are symmetrically arranged on the annular ring (301), two grooves (303) are formed in the inner wall of the annular ring (301), the two grooves (303) are respectively located at the upper part and the lower part of the annular ring (301), and the grooves (303) are matched with annular bosses on the side wall of the accommodating box (4).
6. A test box for simulating underground works anti-floating according to claim 5, characterized in that the ring body (3) is provided with a hand-held part.
7. A test box for simulating underground works anti-floating according to claim 5, characterized in that a sealing member is arranged in the groove (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377295.6A CN112484961A (en) | 2020-11-30 | 2020-11-30 | Test box body for simulating underground engineering anti-floating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377295.6A CN112484961A (en) | 2020-11-30 | 2020-11-30 | Test box body for simulating underground engineering anti-floating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112484961A true CN112484961A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011377295.6A Withdrawn CN112484961A (en) | 2020-11-30 | 2020-11-30 | Test box body for simulating underground engineering anti-floating |
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| CN (1) | CN112484961A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113542A (en) * | 2021-11-19 | 2022-03-01 | 湖南科技学院 | Rock soil and underground engineering model test traffic dynamic load simulation device |
-
2020
- 2020-11-30 CN CN202011377295.6A patent/CN112484961A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113542A (en) * | 2021-11-19 | 2022-03-01 | 湖南科技学院 | Rock soil and underground engineering model test traffic dynamic load simulation device |
| CN114113542B (en) * | 2021-11-19 | 2023-11-14 | 湖南科技学院 | Rock-soil and underground engineering model test traffic dynamic load simulation device |
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Application publication date: 20210312 |