CN214174040U - Soil and underground building structure interact testing arrangement - Google Patents
Soil and underground building structure interact testing arrangement Download PDFInfo
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- CN214174040U CN214174040U CN202022173929.8U CN202022173929U CN214174040U CN 214174040 U CN214174040 U CN 214174040U CN 202022173929 U CN202022173929 U CN 202022173929U CN 214174040 U CN214174040 U CN 214174040U
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Abstract
The utility model provides a soil and underground building structure interact testing arrangement belongs to geotechnical engineering technical field, include: a mounting frame; a fixing assembly; an accommodating box is arranged in the translation component; the vertical pushing assembly is used for pushing the accommodating box to the fixing assembly; the horizontal pushing assembly is used for pushing the translation assembly to move; the utility model has the advantages that: the device can test the interaction of soil and structure, especially can test the influence that soil and structure interact under the effect of cyclic shear.
Description
Technical Field
The utility model belongs to the technical field of geotechnical engineering, a soil and underground building structure interact testing arrangement is related to.
Background
In the field of geotechnical engineering, during the construction and long-term service of underground structures, test data of interaction between soil and building structures (concrete) are the key for judging the long-term service performance of the underground structures.
When the interaction test is carried out on the traditional concrete structure and soil, the interaction of single soil property and a structure is generally only considered, various factors are difficult to consider, the error of a test result is large, and the character of the interaction of the soil and the structure is difficult to truly reflect.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, a soil and underground building structure interact testing arrangement has been proposed.
The purpose of the utility model can be realized by the following technical proposal: an earth and underground building structure interaction testing device, comprising:
a mounting bracket provided with an upper mounting portion and a lower mounting portion;
the fixing assembly is fixedly connected with the upper mounting part and is provided with a first test sample;
the translation assembly is movably arranged on the lower mounting part, an accommodating box is arranged in the translation assembly, guide wheels are arranged on the side wall of the accommodating box, the accommodating box vertically moves in the translation assembly through the guide wheels, and a second test sample is arranged in the accommodating box;
a vertical pushing assembly disposed within the translating assembly and for pushing the containment box against the fixing assembly;
the horizontal pushing assemblies are two and are respectively positioned on two sides of the translation assembly, and the two horizontal pushing assemblies are used for pushing the translation assembly to move.
Preferably, the fixing assembly comprises a fixing frame, the fixing frame is fixedly connected with the upper mounting portion, a fixing groove is formed in the fixing frame, and the first test sample is fixed in the fixing groove and located above the containing box.
Preferably, the first test sample comprises a concrete test block and a plurality of temperature test tubes, the temperature test tubes are arranged in the concrete test block, and the concrete test block is fixed in the fixing groove.
Preferably, the translation assembly comprises a translation box and a translation guide wheel, the translation guide wheel is arranged at the bottom of the translation box, the translation box is movably arranged on the lower mounting portion through the translation guide wheel, and the accommodating box is arranged in the translation box in a lifting manner.
Preferably, a supporting plate and at least two telescopic supporting seats are arranged in the translation box, the supporting plate is connected with the telescopic supporting seats, and the containing box is arranged on the supporting plate.
Preferably, a soil containing plate is arranged in the containing box, a plurality of small holes are formed in the soil containing plate, the second test sample is arranged on the soil containing plate, a water inlet pressurizing hole is formed in the bottom of the containing box, and the water inlet pressurizing hole is used for injecting water to the second test sample on the soil containing plate.
Preferably, the containing box is provided with at least two symmetrical side wall grooves, elastic parts, a first force sensor and a lateral limiting plate are arranged in the side wall grooves, the elastic parts are connected with the first force sensor, and the lateral limiting plate is arranged in the side wall grooves in a lifting mode and is connected with the elastic parts.
Preferably, the vertical pushing assembly comprises a vertical jack and a second force sensor, the vertical jack is arranged in the translation box, the second force sensor is connected with the vertical jack and is used for being connected with the accommodating box, and the vertical jack is used for pushing the accommodating box to ascend and enabling the second test sample to be in interference connection with the first test sample.
Preferably, the horizontal pushing assembly comprises a horizontal jack and a third force sensor, the horizontal jack is fixed on the side of the mounting frame, the third force sensor is connected with the horizontal jack, the third force sensor is used for being connected with the translation box, and the horizontal jack is used for pushing the translation box to translate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the device can test the interaction of soil and structure, especially can test the influence of soil and structure interaction under the influence of cyclic shear.
2. The temperature of the concrete test block can be adjusted by introducing hot air or cold cutting into the temperature test tube, so that the influence of interaction between the concrete test block and soil under the influence of different temperature loads is simulated, the influence of different temperature factors can be considered by the test device, and the test result can reflect the characteristics of interaction between the soil and the structure more truly.
3. The containing box is actually a double-layer structure, a water inlet pressurizing hole is formed in the bottom of the containing box, an external water pressure pressurizing system is connected with the water inlet pressurizing hole, water can enter the containing box and acts on the second test sample through the small hole, and therefore the second test sample is made to be affected by interaction of soil and the structure under the action of stable and unstable seepage pressure.
4. The elastic piece and the first force sensor are located at the bottom of the side wall groove, the lateral limiting plate is inserted from the upper end of the side wall groove, and the lateral limiting plate is connected with the elastic piece in an abutting mode, so that the lateral limiting plate automatically jacks up and blocks soil in the accommodating box under the condition of no external force.
Drawings
Fig. 1 is the structure schematic diagram of the utility model discloses a soil and underground building structure interact testing arrangement.
Fig. 2 is a schematic structural diagram of the translation assembly of the present invention.
Fig. 3 is a schematic structural view of the soil containing plate of the present invention.
Fig. 4 is a bottom view of the accommodating box of the present invention.
In the figure, 100, a mounting frame; 110. an upper mounting portion; 120. a lower mounting portion; 200. a first test sample; 210. testing concrete blocks; 220. a temperature test tube; 300. a second test sample; 410. a fixed mount; 420. fixing grooves; 510. an accommodating box; 511. a water inlet pressurizing hole; 512. a sidewall groove; 513. an elastic member; 514. a first force sensor; 515. a lateral limiting plate; 516. a guide wheel; 520. a soil containing plate; 521. a small hole; 530. a translation box; 531. a support plate; 532. a telescopic supporting seat; 540. a translation guide wheel; 610. a vertical jack; 620. a second force sensor; 710. a horizontal jack; 720. a third force sensor.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, 2, 3 and 4, an interaction test apparatus for soil and underground construction structure includes: mounting bracket 100, fixed subassembly, the translation subassembly, vertical promotion subassembly and horizontal promotion subassembly, wherein, fixed subassembly corresponds the setting from top to bottom with the translation subassembly is, both are fixed with building structure (concrete block) and soil (earth or soil) respectively, vertical promotion subassembly can make the inseparable interact of soil and building structure together, thereby the state of simulation building structure in soil, and horizontal promotion subassembly then can push away soil and building structure looks mutual friction, thereby the shearing action of simulation soil and building structure.
Wherein, the mounting bracket 100 is similar to a square steel frame structure and is provided with an upper mounting part 110 and a lower mounting part 120; the upper and lower mounting portions 110 and 120 are actually upper and lower steel plates, which are vertically disposed in a corresponding manner.
A fixing member fixedly coupled to the upper mounting part 110, and provided with a first test specimen 200; preferably, the fixing member is fixedly connected to the upper mounting part 110 by bolts, the first test specimen 200 can be mounted on the fixing member, and in an actual structure, the first test specimen 200 is selected from a concrete block.
The translation assembly is movably arranged on the lower mounting portion 120, an accommodating box 510 is arranged in the translation assembly, guide wheels 516 are arranged on the side walls of the accommodating box 510, the accommodating box 510 vertically moves in the translation assembly through the guide wheels 516, and a second test sample 300 is arranged in the accommodating box 510.
Preferably, the translation subassembly can move, so can drive and hold case 510 round trip movement, and second test sample 300 is earth, and it is placed in holding case 510, drives earth and concrete block friction through the translation subassembly to the simulation shearing action.
Preferably, the guide wheels 516 are plural in number, and the guide wheels 516 are engaged with the inner sidewalls of the translation assembly so that the accommodating case 510 can move up and down.
A vertical pushing assembly disposed within the translating assembly and configured to push the accommodating box 510 toward the fixing assembly.
Preferably, vertical pushing structure can be the jack structure, also can be cylinder, hydro-cylinder or motor structure, only need can drive and hold case 510 and rise can, when holding case 510 and rise, second test sample 300 is contradicted together with first test sample 200 to can be real-timely to whole effect load process survey.
The horizontal pushing assemblies are two and are respectively positioned on two sides of the translation assembly, and the two horizontal pushing assemblies are used for pushing the translation assembly to move.
Preferably, the horizontal pushing structure can be a jack structure, can also be a cylinder, an oil cylinder or a motor structure, and only needs to be capable of driving the translation assembly to translate, so that the accommodating box 510 can move when the translation assembly translates, and finally, the shearing action is simulated, and the whole action process can be measured.
Therefore, the device can test the interaction between the soil and the structure, and particularly can test the interaction between the soil and the structure under the influence of cyclic shearing.
As shown in fig. 1 and 2, on the basis of the above embodiment, the fixing assembly includes a fixing frame 410, the fixing frame 410 is fixedly connected to the upper mounting portion 110, and preferably, the fixing frame 410 is connected to the upper mounting portion 110 by a bolt or a screw.
The fixing groove 420 is formed in the fixing frame 410, and in an actual structure, the fixing frame 410 may be a box-shaped structure, and the fixing groove can just receive the first test sample 200.
The first test specimen 200 is fixed in the fixing groove 420 and positioned above the accommodating case 510.
It should be noted that the first test specimen 200 may be connected to the holder 410 by bolts or screws, and the first test specimen 200 may be detached from the fixing groove 420 when the test specimen needs to be replaced.
As shown in fig. 1 and 2, based on the above embodiment, the first test sample 200 includes a concrete block 210 and a plurality of temperature test tubes 220, the temperature test tubes 220 are disposed in the concrete block 210, and the concrete block 210 is fixed in the fixing groove 420.
Preferably, concrete test block 210 is platelike structure, set up a plurality of temperature test tubes 220 in concrete test block 210, temperature test tube 220 can be the PVC pipe, through letting in steam or cold cut can adjust the temperature of concrete test block 210 in to temperature test tube 220, thereby simulate the influence of concrete test block 210 and earth interact under the influence of different temperature loads, make testing arrangement can consider different temperature factor influences, the test result can be more real reflection soil and structure interact's property.
As shown in fig. 1 and 2, based on the above embodiment, the translation assembly includes a translation box 530 and a translation guide wheel 540, the translation guide wheel 540 is disposed at the bottom of the translation box 530, the translation box 530 is movably disposed at the lower mounting portion 120 via the translation guide wheel 540, and the accommodating box 510 is liftably disposed in the translation box 530.
Preferably, the translation box 530 can move through the translation guide wheel 540 to simulate the shearing action of the soil and the building structure, and in an actual structure, a guide wheel groove can be formed on the lower mounting part 120, and then the translation guide wheel 540 is positioned in the guide wheel groove, so that the limiting effect can be achieved, the translation box 530 is prevented from moving back and forth, and the translation of the translation box 530 in a stable process can be guided.
Preferably, in a practical structure, a guide wheel 516 is disposed on a side wall of the accommodating box 510, a sliding groove is disposed in the translation box 530, the guide wheel 516 is disposed in the sliding groove, and the accommodating box 510 can be moved with the aid of the guide wheel 516, so that the accommodating box 510 can be lifted and lowered in the translation box 530 more smoothly.
As shown in fig. 1 and 2, in the above embodiment, a support plate 531 and at least two telescopic supports 532 are disposed in the translation box 530, the support plate 531 is connected to the telescopic supports 532, and the accommodating box 510 is disposed on the support plate 531.
Preferably, flexible supporting seat 532 includes inner tube and outer tube, and the inner tube is worn to establish in the outer tube, so flexible supporting seat 532 can stretch out and draw back and adjust the height of self, and backup pad 531 is placed on flexible supporting seat 532, holds case 510 and places on backup pad 531 for it can place in translation case 530 to hold case 510, and in actual structure, can adjust the height of placing of holding case 510 through flexible supporting seat 532.
As shown in fig. 1, 2, 3 and 4, in addition to the above embodiments, a soil holding plate 520 is disposed in the accommodating box 510, the soil holding plate 520 is provided with a plurality of small holes 521, the second test sample 300 is disposed on the soil holding plate 520, a water inlet pressurizing hole 511 is formed in the bottom of the accommodating box 510, and the water inlet pressurizing hole 511 is used for injecting water into the second test sample 300 on the soil holding plate 520.
Preferably, the soil holding plate 520 is a sieve plate structure or a plate structure having a plurality of small holes 521, which enables liquid to act on the second test specimen 300 (soil) through the soil holding plate 520; wherein, a layer of space structure is formed between the bottom of the accommodating box 510 and the soil containing plate 520, and another layer of space structure is formed above the soil containing plate 520, so the accommodating box 510 is actually a double-layer structure, a water inlet pressurizing hole 511 is arranged at the bottom of the accommodating box 510, an external water pressure pressurizing system is connected with the water inlet pressurizing hole 511, water can enter the accommodating box 510 and acts on the second test sample 300 through the small hole 521, and the second test sample 300 is enabled to be under the action of stable and unstable seepage pressure, and the interaction of soil and the structure is realized.
Can simulate soil and building structure and meet the interact condition under stable and unsteady seepage pressure condition through above-mentioned structure for different seepage pressure factor influences can be considered to testing arrangement, and the nature of test result reflection soil and structure interact more truly.
Preferably, in the above structure, a cleaning hole may be formed at the bottom of the accommodating box 510, and the accommodating box 510 may be cleaned by injecting water into the accommodating box 510, and then cleaning the accommodating box 510, and finally discharging the sewage and the impurities from the cleaning hole, thereby facilitating cleaning of the accommodating box 510.
As shown in fig. 1 and 2, on the basis of the above embodiment, the accommodating box 510 is provided with at least two symmetrical sidewall grooves 512, preferably, the sidewall grooves 512 are actually a vertical groove structure formed on the sidewall of the accommodating box 510, so that the sidewall of the accommodating box 510 has a substantially U-shaped cross section, and at least two sidewall grooves 512 of the accommodating box 510 are respectively located on two sides of the accommodating box 510; in addition, four side wall grooves 512 may be provided, that is, the side wall grooves 512 are provided on all four side walls of the accommodating box 510.
An elastic member 513, a first force sensor 514 and a lateral limiting plate 515 are arranged in the lateral wall groove 512, the elastic member 513 is connected with the first force sensor 514, and the lateral limiting plate 515 is arranged in the lateral wall groove 512 in a lifting mode and is connected with the elastic member 513.
Preferably, the elastic member 513 and the first force sensor 514 are located at the bottom of the sidewall groove 512, the lateral restriction plate 515 is inserted from the upper end of the sidewall groove 512, and the lateral restriction plate 515 is in interference connection with the elastic member 513, so that the lateral restriction plate 515 automatically jacks up and blocks the soil in the receiving box 510 without an external force, and in a practical structure, a bar-shaped wheel groove is provided in the sidewall groove 512, and then a plurality of vertical pulleys are provided on the lateral restriction plate 515, and the vertical pulleys are located in the wheel groove, so that the lateral restriction plate 515 can move along the sidewall groove 512.
It should be noted that, in the actual structure, since a large amount of soil samples are placed on the soil containing plate 520 of the containing box 510, once the containing box 510 is lifted, when the second test specimen 300 contacts with the first test specimen 200, the soil samples move to both sides as the containing box 510 is lifted, so that the soil falls from the containing box 510.
To solve the above-mentioned drawback, a lateral restraining plate 515 is specially provided, the lateral restraining plate 515 can be regarded as an extension of the sidewall of the accommodating box 510, so that when the accommodating box 510 is lifted, the lateral restraining plate 515 can restrain the second test sample 300, so that the soil cannot fall out of the accommodating box 510, and as the accommodating box 510 is lifted, the lateral restraining plate 515 can be pressed into the sidewall groove 512, so that the lateral restraining plate 515 does not obstruct the lifting of the accommodating box 510, and when the accommodating box 510 is lowered, the elastic member 513 can push the lateral restraining plate 515 to be lifted, so that the lateral restraining plate 515 is reset, and the first force sensor 514 can detect the force data of the interaction between the first test sample 200 and the second test sample 300.
As shown in fig. 1 and 2, on the basis of the above embodiment, the vertical pushing assembly includes a vertical jack 610 and a second force sensor 620, the vertical jack 610 is disposed in the translation box 530, the second force sensor 620 is connected to the vertical jack 610, and the second force sensor 620 is used for connecting to the accommodating box 510, the vertical jack 610 is used for pushing the accommodating box 510 to ascend and enabling the second test specimen 300 to be in interference connection with the first test specimen 200.
Preferably, the vertical pushing assembly is a jack structure, the vertical jack 610 can apply a huge vertical acting force to the accommodating box 510 and the second test specimen 300, so as to truly simulate the interaction between the soil and the building structure, and the second force sensor 620 can collect the magnitude of the vertical acting force of the first test specimen 200 and the second test specimen 300 when interacting.
In an actual structure, a loading hole is formed in the support plate 531, and the vertical jack 610 can jack up the second force sensor 620, so that the second force sensor 620 passes through the loading hole and then collides with the bottom of the accommodating box 510, thereby jacking up the accommodating box 510.
As shown in fig. 1 and fig. 2, based on the above embodiment, the horizontal pushing assembly includes a horizontal jack 710 and a third force sensor 720, the horizontal jack 710 is fixed on a side of the mounting frame 100, the third force sensor 720 is connected to the horizontal jack 710, the third force sensor 720 is used for being connected to the translation box 530, and the horizontal jack 710 is used for pushing the translation box 530 to translate.
Preferably, the number of the horizontal pushing assemblies is two, which adopts a jack structure, so that the horizontal box 530 can apply a large horizontal force, so that the shearing action can be simulated in the case that the first test specimen 200 and the second test specimen 300 are interfered with each other, while the two horizontal pushing assemblies can push the second test specimen 300 to rub the first test specimen 200 back and forth, so that the effect of the cyclic shearing is simulated, and the second force sensor 620 can collect the data of the shearing force.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a testing method comprises a testing device for interaction between soil and an underground building structure, and further comprises the following steps:
s1: placing the first test specimen 200 and the second test specimen 300 on the fixing groove 420 and the soil holding plate 520, respectively; the lateral restraining plate 515 is in the raised state and can block the second test specimen 300, and in the actual structure, the first test specimen 200 is the concrete test block 210, and the second test specimen 300 is soil or soil.
S2: pushing the containing box 510 to ascend towards the fixing frame 410 by the vertical jack 610 and making the first test sample 200 and the second test sample 300 in interference connection, and then pushing the translation box 530 to move by the horizontal jack 710 so that the second test sample 300 and the first test sample 200 are mutually in friction shearing; the second test sample 300 rises to contact with the first test sample 200, the lateral limiting plate 515 is pressed into the sidewall groove 512, the second test sample 300 cannot drop laterally, and the horizontal jack 710 can drive the second test sample 300 to simulate the interaction between the soil and the structure under the influence of cyclic shearing.
S3: injecting water into the second test specimen 300 on the soil-bearing plate 520 through the water inlet pressurizing hole 511 to simulate osmotic pressure; the temperature of the first test specimen 200 was adjusted by the temperature test tube 220 to simulate a temperature load.
It should be noted here that the testing method can take into account the interaction between the concrete and the concrete test block 210 under the influence of a plurality of factors, specifically, 1, the factors of different temperature loads can be considered; 2. the influence factor of the cyclic shearing can be considered; 3. factors of stable and unstable seepage pressure effects can be considered; 4. the structure is ingenious, and the factors of the change of the soil sample interface caused by the circular shearing can be effectively weakened; 5. factors of temperature, cyclic shear and infiltration influence can be comprehensively considered; therefore, the test result is more accurate and accords with the actual engineering.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A soil and underground building structure interact testing arrangement which characterized in that includes:
a mounting bracket provided with an upper mounting portion and a lower mounting portion;
the fixing assembly is fixedly connected with the upper mounting part and is provided with a first test sample;
the translation assembly is movably arranged on the lower mounting part, an accommodating box is arranged in the translation assembly, guide wheels are arranged on the side wall of the accommodating box, the accommodating box vertically moves in the translation assembly through the guide wheels, and a second test sample is arranged in the accommodating box;
a vertical pushing assembly disposed within the translating assembly and for pushing the containment box against the fixing assembly;
the horizontal pushing assemblies are two and are respectively positioned on two sides of the translation assembly, and the two horizontal pushing assemblies are used for pushing the translation assembly to move.
2. The soil and underground structure interaction test apparatus of claim 1, wherein: the fixed component comprises a fixed frame, the fixed frame is fixedly connected with the upper installation part, a fixed groove is formed in the fixed frame, and the first test sample is fixed in the fixed groove and located above the containing box.
3. The soil and underground structure interaction test apparatus of claim 2, wherein: the first test sample comprises a concrete test block and a plurality of temperature test tubes, wherein the temperature test tubes are arranged in the concrete test block, and the concrete test block is fixed in the fixing groove.
4. The soil and underground structure interaction test apparatus of claim 1, wherein: the translation subassembly includes translation case and translation guide pulley, the translation guide pulley sets up the bottom of translation case, and the translation case passes through the mobilizable setting of translation guide pulley is in the installation department down, the setting that holds the case liftable is in the translation incasement.
5. The soil and underground structure interaction test apparatus of claim 4, wherein: the translation incasement is provided with backup pad and two at least flexible supporting seats, the backup pad with flexible supporting seat is connected, it is in to hold the case setting in the backup pad.
6. The soil and underground structure interaction test apparatus of claim 5, wherein: the soil containing plate is arranged in the containing box and provided with a plurality of small holes, the second test samples are arranged on the soil containing plate, a water inlet pressurizing hole is formed in the bottom of the containing box and used for injecting water into the second test samples on the soil containing plate.
7. The soil and underground structure interaction test apparatus of claim 6, wherein: the containing box is provided with at least two symmetrical side wall grooves, elastic parts, a first force sensor and a lateral limiting plate are arranged in the side wall grooves, the elastic parts are connected with the first force sensor, and the lateral limiting plate is arranged in the side wall grooves in a lifting mode and is connected with the elastic parts.
8. The soil and underground structure interaction test apparatus of claim 7, wherein: the vertical pushing assembly comprises a vertical jack and a second force sensor, the vertical jack is arranged in the translation box, the second force sensor is connected with the vertical jack, the second force sensor is used for being connected with the accommodating box, and the vertical jack is used for pushing the accommodating box to ascend and enable the second test sample to be abutted against the first test sample for connection.
9. The soil and underground structure interaction test apparatus of claim 7, wherein: the horizontal pushing assembly comprises a horizontal jack and a third force sensor, the horizontal jack is fixed to the side of the mounting frame, the third force sensor is connected with the horizontal jack, the third force sensor is used for being connected with the translation box, and the horizontal jack is used for pushing the translation box to translate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022173929.8U CN214174040U (en) | 2020-09-28 | 2020-09-28 | Soil and underground building structure interact testing arrangement |
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| CN202022173929.8U CN214174040U (en) | 2020-09-28 | 2020-09-28 | Soil and underground building structure interact testing arrangement |
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| CN214174040U true CN214174040U (en) | 2021-09-10 |
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| CN202022173929.8U Active CN214174040U (en) | 2020-09-28 | 2020-09-28 | Soil and underground building structure interact testing arrangement |
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