CN115419122B - Variable-section pile template dismantling device for geotechnical model test and using method - Google Patents
Variable-section pile template dismantling device for geotechnical model test and using method Download PDFInfo
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- CN115419122B CN115419122B CN202211048980.3A CN202211048980A CN115419122B CN 115419122 B CN115419122 B CN 115419122B CN 202211048980 A CN202211048980 A CN 202211048980A CN 115419122 B CN115419122 B CN 115419122B
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 3
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- 238000005520 cutting process Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
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- 238000003825 pressing Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a variable cross-section pile template dismantling device for a geotechnical model test and a using method thereof, wherein the variable cross-section pile template dismantling device comprises a variable cross-section single pile, a handle, a sleeve grabbing device and a clamping structure; the handle connecting sleeve grabbing device comprises a first grabbing arm, a rotating shaft and a second grabbing arm, wherein the first grabbing arm, the rotating shaft and the second grabbing arm are sequentially connected, and the angle between the first grabbing arm and the second grabbing arm is changed through adjustment of the rotating shaft; the inner sides of the first grabbing arm and the second grabbing arm are respectively provided with a clamping structure, and the clamping structures are connected with an outer wall surface template of the variable-section single pile. The template dismantling device provided by the invention can effectively improve the efficiency of pile foundation manufacture, thereby greatly shortening the test period and saving the test cost.
Description
Technical Field
The invention relates to the field of civil models, in particular to a variable-section pile template dismantling device for a geotechnical model test and a using method thereof.
Background
Along with the rapid development of traffic industry in China, the improvement of highway grade and the continuous increase of overweight load are carried out, the requirements on pile foundation bearing capacity are higher and higher in the design and construction of the existing highway bridge, and for this, large-diameter equal-section piles are mostly adopted for construction in the current stage, so that a plurality of problems exist, on one hand, the weight of pile body is larger and larger than the specific gravity of pile bearing capacity, and the reduction of effective bearing rate leads to uneconomical engineering; on the other hand, the construction cost of the large-diameter equal-section pile foundation is high. The stepped variable-section pile is used as a novel pile, the design inspiration of the pile is derived from a bamboo joint pile, and the ultimate bearing capacity of the pile per unit volume material is improved on the premise that the ultimate bearing capacity of a single pile is not obviously reduced through the design of the stepped variable-section pile, so that the economical efficiency is improved. The variable-section pile also has the advantages of simple process, material saving and the like, but the existing research on the variable-section pile does not completely prove the stress deformation characteristic of the variable-section pile under the earthquake load due to the particularity of the variable-section pile, and the support of related mechanisms is lacking.
The stress mechanism of the pile foundation is usually researched by adopting similar relation simplification and geotechnical model test. Before the test is carried out, templates with different pile diameters are needed to be used for manufacturing the variable-section single piles and the group piles, and a common template dismantling tool cannot cut the templates with different pile diameters simultaneously, cannot control the cutting depth, and often generates friction damage to pile foundations in the templates when the cutting depth is controlled manually. There is controllability of the template thickness; the applicability of the device, the convenience of operation and the like are insufficient. Not only the quality of the pile foundation is affected, but also a great deal of time and effort are spent. The existing variable-section pile template removing device cannot simply and efficiently remove the template. Thus, a new variable-section pile form removal device is urgently needed.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the variable-section pile template dismantling device for the geotechnical model test and the use method thereof.
The invention is realized by the following technical scheme:
the variable cross-section pile template dismantling device for the geotechnical model test comprises a variable cross-section single pile, a handle, a sleeve grabbing device and a clamping structure; the handle connecting sleeve grabbing device comprises a first grabbing arm, a rotating shaft and a second grabbing arm, wherein the first grabbing arm, the rotating shaft and the second grabbing arm are sequentially connected, and the angle between the first grabbing arm and the second grabbing arm is changed through adjustment of the rotating shaft; the inner sides of the first grabbing arm and the second grabbing arm are respectively provided with a clamping structure, and the clamping structures are connected with an outer wall surface template of the variable-section single pile.
Further, the clamping structure comprises a drill bit and an ejection device, wherein the head of the drill bit is contacted with an outer wall surface template of the variable-section single pile, and the tail of the drill bit is connected with the ejection device.
Further, the handle and the sleeve grabbing device are connected through a connecting device.
Further, the drill bit is provided with a plurality of drill bits.
Further, the ejection device is connected with a control terminal, the control terminal controls the depth of the drill bit through the ejection device, a signal output module is arranged on the control terminal, a signal receiving module is arranged on the ejection device, and the input control quantity is input on the control terminal to send signals to the signal receiving module arranged on the ejection device through the signal output module.
Further, the handle is connected with the power structure, and a circuit structure is arranged in the handle, the connecting device, the sleeving and grabbing device and the ejection device.
Further, a control structure is arranged on the handle and connected with the drill bit, and the control structure controls the rotation of the drill bit.
Further, a spring is arranged in the ejection device and is connected with the drill bit.
Further, the application method of the variable-section pile template dismantling device based on the geotechnical model test is characterized by comprising the following steps of:
s1: setting depth on the control terminal, controlling the rotation of the drill bit through the control structure, moving along the axial direction of the variable-section single pile, and removing the template of the section on the variable-section single pile;
s2: after the template of the variable-section single pile in the step S1 is removed, loosening the drill bit, and removing the template of the variable-section single pile with the other section by changing the angle between the first grabbing arm and the second grabbing arm through adjusting the rotating shaft;
s3: and S2, repeating until the removal of all section templates on the variable section single pile is completed.
Further, the dismantling process is characterized in that the sleeve grabbing device is perpendicular to the axis of the variable-section single pile, the depth of the drill bit is set on the control terminal according to the thickness of the template to be dismantled, the drill bit is placed at one end of the section to be dismantled, the dismantling device is moved through the drill bit, and the rotation of the drill bit is controlled through the control structure on the drill bit.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the telescopic degree of the first grabbing arm and the second grabbing arm is regulated through the sleeve grabbing device of the control device, the degree of clinging to the outer sides of templates with different diameters is regulated through the telescopic degree, the drill bits of the first grabbing arm and the second grabbing arm rotate and penetrate into the templates under the ejection device, and the templates on the pile side are cut, so that the templates are easily removed from the pile foundation, the defect of the template removing device in the prior art is overcome, the utilization efficiency of the device is greatly improved in specific application, and the different sizes and thicknesses of the variable-section pile foundation templates can be adapted through the flexibility of the device.
Furthermore, the device can also set the compression amount of the ejection device according to the thickness of the disassembled template through the control terminal, so that when the device is installed and electrified, and the drilling of the drill bit is realized through the control mechanism, the ejection device extrudes the drill bit when the template is cut, so that the drill bit stretches into the template, and the pile foundation cannot be touched due to the preset setting. The template can be easily cut, and the pile foundation is not damaged.
Furthermore, the device has the advantages of wide application range, and can be used for a single pile foundation and a group pile foundation; the method can realize the dismantling of all the constant-section or variable-section pile foundation templates adopted in the current geotechnical model test.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a control terminal of a variable cross-section pile template removing device for a geotechnical model test according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the overall structure of a variable-section pile template removing device for a geotechnical model test according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a construction of a plurality of co-operations of a variable cross-section pile form removal apparatus for a geotechnical model test according to an embodiment of the present invention;
FIG. 4 is a schematic view of a clamping structure of a variable cross-section pile form removal device for a geotechnical model test according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an operation structure of a variable cross-section pile template removing device for a geotechnical model test when working on a single pile according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an operation structure of a variable cross-section pile template removing device for a geotechnical model test in working on multiple piles according to an embodiment of the present invention;
in the figure: the device comprises a control terminal 1, a signal output module 2, a circuit structure 3, a drill bit 4, a control structure 5, a connecting device 6, a sleeve grabbing device 7, a first grabbing arm 8, a rotating shaft 9, a second grabbing arm 10, a drill bit 11, an ejection device 12, a variable-section single pile 13 and a bearing platform 14.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the preferred embodiment, the invention provides a variable-section pile template dismantling device for geotechnical model test, which comprises a control terminal 1, a signal output module 2, a circuit structure 3, a drill bit 4, a control structure 5, a connecting device 6, a sleeve grabbing device 7, a first grabbing arm 8, a rotating shaft 9, a second grabbing arm 10, a drill bit 11, an ejection device 12, a variable-section single pile 13 and a bearing platform 14,
the control terminal 1 is used for controlling the expansion and contraction in the ejection device 12 to adjust the depth of the drill bit 11, a telescopic structure in the ejection device 12 adopts a spring, the spring is connected with the tail part of the drill bit 11, the depth of a template of the variable-section single pile 13 is similar to the depth of the drill bit 11, the depth of the drill bit 11 is smaller than the thickness of the template of the variable-section single pile 13, and friction damage to a variable-section pile foundation is avoided when the template is cut; the signal output module 2 is arranged on the control terminal 1, and the signal output module 2 on the control terminal 1 is used for outputting instructions to control the expansion amount of the expansion structure inside the ejection device 12.
The line structure 3 passes through the drill bit 4, the connecting device 6, the sleeving and grabbing device 7 and the ejection device 12 to be connected with the drill bit 11, and is used for powering the whole template cutting device, namely the rotation of the drill bit 11; a control structure 5 is installed on one side of the drill bit 4, a control module is arranged in the control structure 5, and the control module is connected with a connecting device 6 and used for controlling the removal device to move, so that the device vertically cuts the template along the pile side. The drill bit 4 adopts a long handle structure with an arc, so that the holding effect can be effectively ensured, and a comfortable holding feeling is provided for operators.
The control structure 5 controls the rotation of the drill bit 11, and the control structure 5 adopts the structure arrangement of a button in the embodiment, when the drill bit is needed to be used, a power supply is turned on, the drill bit can be started by pressing the button, and when the drill bit is not needed to be used, the drill bit can be stopped by pressing the button again; the connecting device 6 is used for connecting the handle 4 and the sleeve grabbing device 7, realizing the smooth transition from the handle 4 to the sleeve grabbing device 7, providing a certain safety space and avoiding the accidental injury of the small drill bit of the device.
The sleeve grabbing device 7 is connected with the connecting device 6, the sleeve grabbing device 7 comprises a first grabbing arm 8, a rotating shaft 9 and a second grabbing arm 10, a circuit structure is arranged in the sleeve grabbing device to provide a power source, and the opening of the first grabbing arm 8 and the opening of the second grabbing arm 10 are adjusted by manually adjusting the expansion and contraction of the rotating shaft 9 and are used for cutting pile foundation templates with different diameters.
The first grabbing arm 8 is connected with the rotating shaft 9, provides space for drilling work of the drill bit 11, and is an important part of the whole template cutting device which is attached to the pile side and does not slide; the rotating shaft 9 has scalability, and the opening size between the first grabbing arm 8 and the rotating shaft 9 is controlled by adjusting the rotating shaft 9; the second grabbing arm 10 comprises a circuit structure 3, a drill bit 11 and an ejection device 12, the second grabbing arm 10 is connected with the rotating shaft 9, space is provided for drilling work of the drill bit 11, and the second grabbing arm is an important part of the whole template cutting device which is attached to the pile side and does not slide.
The drill bit 11 is directly connected with the ejection device 12, the drill bit 11 and the ejection device 12 form a clamping structure, the drill bit 11 and the ejection device 12 form a strip-shaped structure, the ejection device 12 is arranged inside the strip-shaped structure, the ejection structure of the ejection device 12 is connected with the tail of the ejection device 11, the head of the drill bit 11 extends out of the end face of the strip-shaped structure, the effect of convenient clamping can be achieved, meanwhile, injuries caused by misoperation are avoided in actual use, the drill bit 11 is used for drilling a template on the outer wall of a pile, one side of the template is damaged, and the template is convenient to dismount.
The ejection device 12 is connected with the drill bit 11 and the circuit structure 3, the ejection device 12 comprises a spring and a signal receiving module, the signal receiving module adopts an infrared receiving port, and the expansion and the contraction of the ejection device 12 are controlled after receiving the instruction of the signal output module 2.
The variable cross-section single pile 13 can save construction cost. The model piles are adopted in the geotechnical test, and are correspondingly reduced according to the actual proportion. The pile foundation template is attached to the outside, and the pile foundation template can be used after being removed by adopting a template removing device.
The bearing platforms 14 are used for connecting the variable cross section single piles 13, a plurality of variable cross section single piles 13 can be arranged when the variable cross section single piles 13 are specifically used, the variable cross section single piles 13 are uniformly arranged in an array mode, a pile group foundation is formed by arranging the connecting bearing platforms 14 on the upper end faces of the variable cross section single piles 13, and upper loads are uniformly distributed on each pile body. The pile foundation template is attached to the outside, and the pile foundation template can be used after being removed by adopting a template removing device.
The invention also provides a variable-section pile template dismantling device for the geotechnical model test, which mainly comprises a control terminal, a handle, a connecting device and a sleeve grabbing device. After externally connecting a power supply, manually adjusting the rotation shaft 9 to stretch and retract according to the pile diameter, setting the spring stretching amount of the ejection device by the wireless remote control device, manually grasping the handle and pressing a control button to control the rotation of the small drill bit to cut pile foundation templates with different diameters so as to adapt to the needs of geotechnical model tests, and comprising a control terminal 1, a circuit structure 3, a drill bit 4, a control structure 5 and a clamping structure.
The specific using steps are as follows:
step one: and manufacturing a pile foundation template with a variable section according to the requirements of a geotechnical model test, sleeving the pile foundation template on the outer side of the prepared reinforcement cage, pouring concrete and standing.
Step two: and (5) detaching the template after the strength of the concrete in the template meets the test requirement. After the power is on, the control terminal 1 and the pile foundation template removing device are checked, the device can be ensured to be used, and the power supply is disconnected after the checking is finished.
Step three: the drill bit 11 is manually adjusted according to the diameter of the pile side template to ensure that the sleeve gripping device can be tightly attached to the outer side of the template.
Step four: the device adjusts the expansion and contraction of the rotating shaft 9 according to the large-diameter template of the variable-section single pile 13, so that 7 clings to the outer side of the template, a wireless remote control device is adopted to set the compression amount of a spring in the ejection device 12 according to the thickness of the manufactured template, a power supply is turned on, a handle is manually held and pressed down by 5, at the moment, the drill bit 11 is started to cut the template and penetrates into the inner wall of the template under the action of the spring force, and meanwhile, the sleeve grabbing device 7 is controlled to vertically move up and down along the pile side until the cutting of the template on the outer side of the large-diameter variable-section single pile is completed.
Step five: and 5, immediately pressing down the outside template of the large-diameter variable-section single pile 13 after cutting, stopping working the drill bit 11 at the moment, disassembling the device, and assembling and working the device on the outside template of the small-diameter variable-section single pile again according to the fourth step until the whole model pile side template is cut.
Step six: pressing a control button to finish cutting the variable-section single-pile template, cutting off a power supply, disassembling the device, putting on gloves, easily removing the cut template, and recycling.
Step seven: and repeating the steps four to six, cutting pile foundation templates with different diameters under pile group foundations, and carrying out next-step work after all single pile and pile group foundation templates are removed and recycled.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art. The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. The application method of the variable-section pile template dismantling device for the geotechnical model test is characterized by comprising the following steps of:
s1: setting depth on the control terminal (1), controlling the rotation of the drill bit (11) through the control structure (5), moving along the axial direction of the variable-section single pile (13), and removing the template of the section on the variable-section single pile (13);
s2: after the template of the variable-section single pile (13) in the S1 is removed, the drill bit (11) is loosened, and the angle between the first grabbing arm (8) and the second grabbing arm (10) is changed by adjusting the rotating shaft (9) so as to remove the template of the variable-section single pile (13) with the other section;
s3: repeating the step S2 until all section templates on the variable section single pile (13) are removed;
wherein, the variable cross section stake template demolishs device of geotechnique model test includes:
the device comprises a variable cross section single pile (13), a handle (4), a sleeve grabbing device (7) and a clamping structure; the handle (4) is connected with the sleeve grabbing device (7), the sleeve grabbing device (7) comprises a first grabbing arm (8), a rotating shaft (9) and a second grabbing arm (10), the first grabbing arm (8), the rotating shaft (9) and the second grabbing arm (10) are sequentially connected, and the angle between the first grabbing arm (8) and the second grabbing arm (10) is changed through adjustment of the rotating shaft (9); clamping structures are arranged on the inner sides of the first grabbing arm (8) and the second grabbing arm (10), and the clamping structures are connected with an outer wall surface template of the variable-section single pile (13);
the clamping structure comprises a drill bit (11) and an ejection device (12), wherein the head of the drill bit (11) is contacted with an outer wall surface template of a variable-section single pile (13), and the tail of the drill bit (11) is connected with the ejection device (12);
the handle (4) is provided with a control structure (5), the control structure (5) is connected with the drill bit (11), and the control structure (5) controls the rotation of the drill bit (11).
2. The method for using the variable-section pile template removing device for the geotechnical model test according to claim 1, wherein the handle (4) and the sleeve grabbing device (7) are connected through the connecting device (6).
3. The method for using the variable-section pile template removing device for the geotechnical model test according to claim 2, wherein the handle (4) is connected with a power structure, and a circuit structure (3) is arranged in the handle (4), the connecting device (6), the sleeving and grabbing device (7) and the ejection device (12).
4. The method of using a variable section pile form removal device for geotechnical model test according to claim 1, wherein the drill bit (11) is provided with a plurality.
5. The method for using the variable-section pile template dismantling device for the geotechnical model test according to claim 1, wherein the ejection device (12) is connected with the control terminal (1), the control terminal (1) controls the depth of a drill bit (11) through the ejection device (12), a signal output module (2) is arranged on the control terminal (1), a signal receiving module is arranged on the ejection device (12), and the input control quantity is transmitted to the signal receiving module arranged on the ejection device (12) through the signal output module (2) by inputting the control quantity on the control terminal (1).
6. The method for using the variable-section pile template removing device for the geotechnical model test according to claim 1, wherein a spring is arranged in the ejection device (12), and the spring is connected with the drill bit (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211048980.3A CN115419122B (en) | 2022-08-30 | 2022-08-30 | Variable-section pile template dismantling device for geotechnical model test and using method |
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| CN202211048980.3A CN115419122B (en) | 2022-08-30 | 2022-08-30 | Variable-section pile template dismantling device for geotechnical model test and using method |
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| CN115419122B true CN115419122B (en) | 2024-01-26 |
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| CN203497928U (en) * | 2013-10-02 | 2014-03-26 | 嘉兴欣创混凝土制品有限公司 | Concrete pile mold hoisting rack |
| CN207003427U (en) * | 2017-06-29 | 2018-02-13 | 中国电力工程顾问集团华东电力设计院有限公司 | The tubular plate device in photovoltaic bracket in situ concrete pile basis |
| CN210477130U (en) * | 2019-08-06 | 2020-05-08 | 浙江吉高新材料有限公司 | Grabbing and cutting device for dustproof sleeve of automobile driving shaft |
| CN215919238U (en) * | 2021-07-30 | 2022-03-01 | 山东冠鲁置业有限公司 | Template removing device for building construction |
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| CN115419122A (en) | 2022-12-02 |
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