CN111239367A - Automatic simulation experiment device and method for ground settlement - Google Patents
Automatic simulation experiment device and method for ground settlement Download PDFInfo
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- CN111239367A CN111239367A CN202010069874.8A CN202010069874A CN111239367A CN 111239367 A CN111239367 A CN 111239367A CN 202010069874 A CN202010069874 A CN 202010069874A CN 111239367 A CN111239367 A CN 111239367A
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- 238000004088 simulation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000004062 sedimentation Methods 0.000 description 1
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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
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Abstract
The invention relates to an automatic simulation experiment device and an experiment method for ground settlement, wherein the experiment device comprises a model box, a bottom plate, a plurality of electro-hydraulic push rods, at least three support rods and a plurality of fixing plates, the bottom of the model box is a template made of plastic materials, the upper ends of the support rods are fixed on the bottom surface of the model box through the fixing plates, the lower ends of the support rods are fixed on the upper surface of the bottom plate through the fixing plates, the tops of the push rods of the electro-hydraulic push rods are fixed on the lower surface of the bottom of the model box through the fixing plates, and the bases of the electro-hydraulic push. The ground settlement automatic simulation experiment device can be used for simulating ground settlement or upper structure deformation caused by tunnel excavation.
Description
Technical Field
The invention relates to a ground settlement automatic simulation experiment device and an experiment method using the ground settlement automatic simulation experiment device.
Background
In large and medium-sized cities in China, the current situation of traffic congestion of densely populated places cannot be changed by single ground traffic, and the rapid construction and development of underground spaces of the cities are urgently needed. And more urban underground space development processes have the disadvantage of bringing adverse effects to surrounding environments. When the underground space of a city is constructed, the original stress state of the underground soil body is often changed, so that the stratum is deformed and lost. The ground loss usually affects and damages the ground, the underground space structure and the building structure above the ground surface, so that the construction period is delayed, the construction work amount is increased, and the ground collapse, the house cracking and major safety accidents are caused, thereby threatening the personal and property safety of people. If can simulate the ground subsides that induce in the underground space excavation process effectively through a device, can foresee the engineering safety in advance to adopt effectual control measure, will reduce the construction risk to a great extent.
In recent years, with the continuous upgrade of software and hardware of a computer, the intellectualization of the computer is more prominent, and an automatic simulation control technology has been widely applied to many fields, but an automatic test device and a simulation method for simulating ground settlement are not available so far.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an automatic ground settlement simulation experiment device and an automatic ground settlement simulation experiment method.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides an automatic simulation experiment device of ground subsidence, including the mold box, the bottom plate, a plurality of electric liquid push rod, at least three bracing piece and a plurality of stationary blade, the mold box bottom of the case is the template of plastic material making, the upper end of bracing piece is fixed at mold box bottom of the case surface through the stationary blade, the lower extreme of bracing piece is fixed at the bottom plate upper surface through the stationary blade, the push rod top of electric liquid push rod is fixed at mold box bottom of the case surface through the stationary blade, the base of electric liquid push rod passes through the stationary blade to be fixed at the.
Preferably, the bottom plate is the steel sheet, the bracing piece has four, and the bracing piece sets up respectively in four angles of steel sheet, and the both ends welding of every bracing piece the stationary blade, through the stationary blade realizes the fixed at bottom of the bottom plate and the mold box bottom surface.
Preferably, the lower surface of the bottom of the model box and the upper surface of the bottom plate are provided with unit lattices with the same shape and size, the shapes and sizes of the fixing pieces are the same as those of the unit lattices, and the upper end and the lower end of the supporting rod, the top of the push rod of the electro-hydraulic push rod and the base are fixed in the corresponding unit lattices through the fixing pieces.
Preferably, four angles of every cell on the bottom plate all set up the screw hole, four angles of every cell on the mold box bottom surface all set up the screw hole, every four angles that the stationary blade is steel sheet and steel sheet all set up the unthreaded hole, and the bolt is worn to establish in the unthreaded hole of steel sheet and is establish soon and realize the fixed setting of steel sheet on corresponding cell in the screw hole that corresponds.
Preferably, the template is a square template, and the square template is arranged opposite to the bottom plate and has the same size.
Preferably, the circumference baffle of mold box divide into interior curb plate and outer panel, and interior, outer panel bond to fix together and interior curb plate all with the bottom plate bonding fixed, set up a plurality of round punch combination along circumference on the internal surface of interior curb plate, a plurality of round punch combination crisscross setting in vertical direction, the round hole in every round punch combination is along vertical distribution, all installs the wireless soil pressure sensor who is used for measuring soil layer side direction soil pressure in the mold box in every round hole.
The method for carrying out ground settlement automatic simulation experiment by utilizing the experimental device comprises the following steps:
step one, placing a soil body in a model box, extruding the soil body in the model box to enable the soil body to tend to be compact, receiving a real soil pressure situation in the model box through a wireless soil pressure sensor in an inner side plate of the model box, comparing the real soil pressure situation with a measured field test soil pressure, continuously extruding and measuring until the real soil pressure situation is equivalent to the field test soil pressure;
The invention has the advantages that the displacement change of stratum sedimentation is simulated by controlling the up-and-down movement of the electro-hydraulic push rod, so that the influence of the stratum displacement change on an original site is simulated, the influence of the stratum displacement change on an existing structure at the upper part can also be simulated, and the invention has the advantages of simple structure, low manufacturing cost, multiple functions and good use effect.
Furthermore, the bottom surface of the model box and the upper surface of the bottom plate are provided with unit lattices with the same shape and size, and the shape and size of the fixing sheet are the same as those of each unit lattice, so that the mounting standard of the electro-hydraulic push rod can be followed, and the electro-hydraulic push rod can be easily mounted into a regular array according to the requirement.
Furthermore, the fixing pieces are connected with the bottom plate and the bottom of the model box through detachable bolts, so that the model box is convenient to disassemble and assemble and maintain.
Furthermore, a plurality of circular hole groups are arranged on the inner surface of the inner side plate of the model box along the circumferential direction, so that the wireless soil pressure sensor can be conveniently installed.
The automatic simulation experiment method for ground settlement can be used for conveniently carrying out the automatic simulation experiment on the ground settlement.
Drawings
Fig. 1 is a schematic structural diagram of an automatic ground settlement simulation experiment device in the embodiment of the invention.
Fig. 2 is a partial structural schematic diagram of another angle of the ground subsidence automatic simulation experiment device in the embodiment of the invention.
FIG. 3 is a schematic view showing the structure of a mold box according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of the dial in the embodiment of the present invention.
FIG. 5 is a schematic structural diagram of a laser pointer in an embodiment of the present invention.
Detailed Description
Example 1
An automatic simulation experiment device for ground settlement, as shown in fig. 1-3, comprises a model box 7, a bottom plate 1, a plurality of electro-hydraulic push rods 4 (only one is shown in the figure for easy observation), four support rods 5 and a plurality of fixing pieces 2, the bottom of the model box is a template made of plastic materials, the template is a square template 6 which can be made of low carbon steel plates, copper plates, aluminum plates, plastic plates or rubber plates, the rubber plates are adopted in the embodiment, the bottom plate 1 is a steel plate, the square template and the bottom plate are arranged opposite to each other and have the same size and are squares of 1 square meter, the lower surface of the bottom of the model box and the upper surface of the bottom plate are provided with unit lattices of the same shape and size, the fixing pieces are squares of 0.01 square meter, the four support rods are positioned at four corners of the bottom plate, the support rods are steel tubes, and the fixing pieces 2 are welded at, a fixing plate is welded at the top of a push rod of the electro-hydraulic push rod, a base of the electro-hydraulic push rod is welded at the bottom of the base, four corners of each cell on a bottom plate 1 are provided with threaded holes (not shown in the figure), four corners of each cell on the lower surface of the bottom of a model box are provided with threaded holes (not shown in the figure), a fixing plate is a steel sheet, four corners of each fixing plate are provided with unthreaded holes 3, bolts penetrate through the unthreaded holes of the steel sheet and are rotatably arranged in the corresponding threaded holes to realize the fixed arrangement of the steel sheet on the corresponding cell, the upper end of a support rod is fixed in the cell on the bottom surface of the model box through the fixing plate, the lower end of the support rod is fixed in the cell on the upper surface of the bottom plate through the fixing plate, similarly, the top of the push rod of the electro-hydraulic push rod is fixed in the corresponding cell on, the number and the set position of the electro-hydraulic push rods can be increased, decreased and adjusted according to experimental needs. The circumference baffle of mold box divide into interior plate and outer panel, and interior, outer panel bond fixed together and interior, the outer panel all bonds fixedly with the bottom plate, set up a plurality of round punch combination along circumference on the internal surface of interior plate, a plurality of round punch combination crisscross setting in vertical direction, the round hole in every round punch combination is along vertical distribution, in this embodiment, every group has two round holes, all installs the wireless soil pressure sensor who is used for measuring soil layer side direction soil pressure in the mold box in every round hole.
In other embodiments, different from embodiment 1, three or five support rods can be arranged as required, as long as the stability of the device is ensured; in other embodiments, different from embodiment 1, the mold box base may also be a low carbon steel sheet, and the fixing pieces and the bottom plate and the mold box bottom may also be fixed by welding.
Example 2
The method for carrying out the ground subsidence automatic simulation experiment by using the experimental device, as shown in figures 1-5, comprises the following steps:
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides an automatic simulation experiment device of ground subsidence which characterized in that: the mold comprises a mold box, a bottom plate, a plurality of electro-hydraulic push rods, at least three support rods and a plurality of fixing plates, wherein the bottom of the mold box is a template made of plastic materials, the upper ends of the support rods are fixed on the lower surface of the bottom of the mold box through the fixing plates, the lower ends of the support rods are fixed on the upper surface of the bottom plate through the fixing plates, the tops of the push rods of the electro-hydraulic push rods are fixed on the lower surface of the bottom of the mold box through the fixing plates, and bases of.
2. The ground subsidence automatic simulation experiment device of claim 1, characterized in that: the bottom plate is the steel sheet, the bracing piece has four, and the bracing piece sets up respectively at four angles of steel sheet, and the both ends welding of every bracing piece the stationary blade, through the stationary blade realizes the fixed at bottom plate and mold box bottom surface.
3. The automatic simulation experiment device for ground settlement according to claim 1 or 2, wherein: the bottom surface of the model box and the upper surface of the bottom plate are provided with unit lattices with the same shape and size, the shape and size of the fixing sheet are the same as those of each unit lattice, and the upper end and the lower end of the supporting rod and the top of the push rod and the base of the electro-hydraulic push rod are fixed in the corresponding unit lattices through the fixing sheets.
4. The ground subsidence automatic simulation experiment device of claim 3, characterized in that: four angles of every cell on the bottom plate all set up the screw hole, four angles of every cell on the mold box bottom surface all set up the screw hole, every four angles that the stationary blade is steel sheet and steel sheet all set up the unthreaded hole, and the bolt is worn to establish in the unthreaded hole of steel sheet and is establish soon and realize the fixed setting of steel sheet on corresponding cell in the screw hole that corresponds.
5. The ground subsidence automatic simulation experiment device of claim 1, characterized in that: the template is a square template, and the square template is arranged opposite to the bottom plate and has the same size.
6. An automatic simulation experiment device for ground subsidence as claimed in claim 1, 4 or 5, wherein: the utility model discloses a soil pressure sensor of soil layer side direction soil pressure in the model case, including the bottom plate, the bottom plate is fixed with the bottom plate, and the circumference baffle of model case divide into interior plate and outer panel, and interior, outer panel bond together and the inside and outside panel all bonds fixedly with the bottom plate, set up a plurality of round punch combination along circumference on the internal surface of interior plate, a plurality of round punch combination crisscross setting in vertical direction, the round hole in every round punch combination is along vertical distribution, all installs the wireless soil pressure sensor who is used for measuring soil layer side direction soil pressure in the model case in every round.
7. A method for conducting ground subsidence automated simulation experiments using the experimental apparatus of claim 6, comprising the steps of:
step one, placing a soil body in a model box, extruding the soil body in the model box to enable the soil body to tend to be compact, receiving the soil pressure condition in the model box through a wireless soil pressure sensor in an inner side plate of the model box, comparing the soil pressure condition with the measured field test soil pressure, continuously extruding and measuring until the soil pressure is equivalent to the field test soil pressure;
step 2, inserting the laser pen into the soil body, arranging a level gauge on the laser pen, balancing the level gauge in the laser pen to ensure that the laser pen is kept vertical, and then arranging the dial disc right above the laser pen;
step 3, inputting a settlement value to be simulated to a controller of each electro-hydraulic push rod through a computer, controlling the electro-hydraulic push rods to be pulled down to drive the template to deform, driving the laser pen to incline due to the disturbance of the soil body in the model box at the moment, deflecting light rays, measuring the horizontal distance of deflection on the upper dial scale, measuring the distance from the laser pen to the dial, and then passing through a formula: θ ═ arctan (x/h) yields the offset angle, where x is the measured horizontal displacement of the light on the scale and h is the distance between the laser pointer and the scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010069874.8A CN111239367A (en) | 2020-01-21 | 2020-01-21 | Automatic simulation experiment device and method for ground settlement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010069874.8A CN111239367A (en) | 2020-01-21 | 2020-01-21 | Automatic simulation experiment device and method for ground settlement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504122A (en) * | 2021-06-30 | 2021-10-15 | 中铁十四局集团大盾构工程有限公司 | Tunnel segment upper soil body load deformation experimental device and method |
| CN113970628A (en) * | 2020-07-22 | 2022-01-25 | 中国石油天然气股份有限公司 | Simulation experiment device and method for lifting and degassing of hydrocarbon source rock structure |
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2020
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| CN103670386A (en) * | 2013-12-11 | 2014-03-26 | 同济大学 | Rock stratum multi-point displacement laser measuring method and device |
| CN104931014A (en) * | 2015-04-02 | 2015-09-23 | 中建三局第二建设工程有限责任公司 | Compression deformation observation device and method used for structural settlement or under high-rise structure self-weight |
| CN105527389A (en) * | 2016-03-02 | 2016-04-27 | 山东交通学院 | Jack-based experiment model and method for simulating uneven settlement of foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113970628B (en) * | 2020-07-22 | 2024-03-26 | 中国石油天然气股份有限公司 | Simulation experiment device and method for lifting and releasing gas of hydrocarbon source rock structure |
| CN113504122A (en) * | 2021-06-30 | 2021-10-15 | 中铁十四局集团大盾构工程有限公司 | Tunnel segment upper soil body load deformation experimental device and method |
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Inventor after: Zhao Shiyong Inventor after: Wen Faqing Inventor after: Li Yongmei Inventor after: Song Weikang Inventor after: Jin Junwei Inventor after: Fu Boyi Inventor after: Li Mingyu Inventor after: Liu Yonghui Inventor after: Tao Yunchao Inventor after: Yu Weiguang Inventor after: Huang Yongliang Inventor after: Liu Jianyang Inventor before: Jin Junwei Inventor before: Wen Faqing Inventor before: Li Yongmei Inventor before: Song Weikang Inventor before: Fu Boyi Inventor before: Zhao Shiyong Inventor before: Li Mingyu Inventor before: Liu Yonghui Inventor before: Tao Yunchao Inventor before: Yu Weiguang Inventor before: Huang Yongliang Inventor before: Liu Jianyang |
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Application publication date: 20200605 |