CN115233751A - Method and device for testing internal force of prestressed pipe pile load - Google Patents
Method and device for testing internal force of prestressed pipe pile load Download PDFInfo
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- CN115233751A CN115233751A CN202211027839.5A CN202211027839A CN115233751A CN 115233751 A CN115233751 A CN 115233751A CN 202211027839 A CN202211027839 A CN 202211027839A CN 115233751 A CN115233751 A CN 115233751A
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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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Abstract
The application relates to a method for testing the internal force of a prestressed pipe pile load, which comprises the following steps: s1: equal proportion modeling, namely producing the tube piles which are reduced in equal proportion according to the proportion by adopting the same material and the same process; s2: arranging detection points, namely arranging the detection points on the inner wall and the outer wall of the tubular pile in the circumferential direction; s3: installing the tubular pile, namely installing the tubular pile on a detection device, and plugging the tubular pile circumferentially by adopting soil; s4: filling the interior, and pouring and filling concrete in the tubular pile; s5: loading load, namely loading the load on the tubular pile; s6: and testing the internal force, detecting the internal force of the tubular pile through the loaded and pre-arranged test points, and acquiring a detection result according to the detection data. This application has the effect of practicing thrift the cost that the tubular pile detected.
Description
Technical Field
The application relates to the field of pipe pile construction detection, in particular to a method and a device for testing internal force of a prestressed pipe pile load.
Background
The prestressed pipe pile is a pipe pile poured by concrete, is a common building material, and is required to be knocked into the ground in order to ensure that the pipe pile is not easy to topple over when a high-rise building is built, and then the building is built on the pipe pile.
The pipe pile has a great influence on the construction quality of the building due to the internal load force, so the internal load force of the pipe pile needs to be detected before the building is constructed on the pipe pile.
For the above related technologies, the inventor considers that the pipe pile is firstly driven into the ground when the existing pipe pile is detected, then concrete is poured into the pipe pile, the pipe pile is subjected to load internal force detection after the concrete is solidified, the whole process needs actual operation on the site, and when the detected pipe pile is unqualified, the pipe pile needs to be pulled out and replaced by a new pipe pile, so that the cost is high.
Disclosure of Invention
In order to save the cost of tubular pile detection, the application provides a method for testing the internal force of the prestressed tubular pile load.
The application provides a method for testing the internal force of a prestressed pipe pile load, which adopts the following technical scheme:
a method for testing the internal force of a prestressed pipe pile under load comprises the following steps:
s1: equal proportion modeling, namely producing the tube piles which are reduced in equal proportion according to the proportion by adopting the same material and the same process;
s2: arranging detection points, namely arranging the detection points on the inner wall and the outer wall of the tubular pile in the circumferential direction;
s3: installing the tubular pile, namely installing the tubular pile on a detection device, and plugging the tubular pile circumferentially by adopting soil;
s4: filling the interior, and pouring and filling concrete in the tubular pile;
s5: loading load, namely loading the load on the tubular pile;
s6: and testing the internal force, detecting the internal force of the tubular pile through the loaded and pre-arranged test points, and acquiring a detection result according to the detection data.
Through adopting above-mentioned technical scheme, through reducing the proportion and modeling, the tubular pile after reducing the proportion passes through check out test set and carries out the detection of load internal force in the laboratory, acquires the load internal force condition of tubular pile, need not to insert the tubular pile into the building site actual measurement, reduces the unqualified probability that leads to the wasting of resources of tubular pile, practices thrift the cost that the tubular pile detected.
Optionally, the soil is dug to actually insert the soil in the area, and the environment of the area is actually inserted to simulate the tubular pile
Through adopting above-mentioned technical scheme, adopt the tubular pile actually to insert and establish regional earth, make the simulated environment who detects can be more similar with on the spot to promote and detect the precision.
The utility model provides an application prestressing force tubular pile load internal force testing method's testing arrangement, includes the base, the base deviates from ground one side and is provided with places the dish, place the tubular pile on the dish, place the clamp plate on the tubular pile, set up the jack on the clamp plate, be provided with on the jack and place the board, place and place the balancing weight on the board, be provided with the packing subassembly in the tubular pile, the packing subassembly includes ring body, inflatable spare and filling layer, the ring body clearance is inserted and is located the tubular pile inner wall, inflatable spare sets up at the ring body inner wall, the filling layer is filled and is set up between ring body and tubular pile inner wall, filling layer outer wall butt tubular pile inner wall, filling layer inner wall butt ring body outer wall.
Through adopting above-mentioned technical scheme, ring body and tubular pile inner wall clearance set up and are used for pouring the filling layer, and the setting of ring body and gas filled component can reduce the area in the hole of tubular pile, reduces the pouring filling volume of concrete to play resources are saved's effect.
Optionally, the base is provided with a plurality of montants in placing the dish circumference is vertical, the montant all runs through places the board, places the board and slides along montant length direction and set up on the montant.
Through adopting above-mentioned technical scheme, the setting up of montant can carry out the guide effect to placing the board to the position of board is placed in convenient regulation according to the tubular pile of different length.
Optionally, all the sleeves are provided with elastic pieces, one end of each elastic piece abuts against the base, and the other end of each elastic piece faces towards the placing plate, extends and is in clearance fit with the placing plate.
Through adopting above-mentioned technical scheme, the setting of elastic component can slow down when the tubular pile is broken and place the board and dispose the impact force of piece to check out test set, reduces the probability that the damage appears in check out test set.
Optionally, tubular pile outer wall cladding loam layer, the soil layer is provided with a plurality of plate bodys outward, and is a plurality of plate body end to end cladding loam layer.
Through adopting above-mentioned technical scheme, the actual environment can be imitated through the volume in the setting of dirt bed, promotes and detects the precision, and the setting of plate body can reduce the probability that dirt bed breaks away from the tubular pile under the action of gravity.
Optionally, the base is provided with a pressure mechanism corresponding to the plate body, the pressure mechanism comprises a mounting frame and a pressure spring, the mounting frame is arranged in a gap with the plate body, the mounting frame is mounted on the base, the pressure spring is arranged between the mounting frame and the plate body, one end of the pressure spring is fixedly arranged on the mounting frame, the other end of the pressure spring is abutted to the plate body, and the elastic force of the pressure spring drives the plate body to slide towards the direction away from the mounting frame.
Through adopting above-mentioned technical scheme, the setting of pressure mechanism can make the plate body possess elasticity, can bear the impact force, makes environmental simulation and actual conditions be closer.
Optionally, be provided with adjustment mechanism between plate body and the mounting bracket, adjustment mechanism includes adjusting screw and adjusting nut, adjusting screw sets firmly at plate body towards mounting bracket one side, and adjusting screw keeps away from plate body one end and runs through the mounting bracket, adjusting nut deviates from plate body one end butt on the mounting bracket in the mounting bracket, and adjusting nut threaded connection is on adjusting screw.
Through adopting above-mentioned technical scheme, adjustment mechanism's setting can the adjustment plate body the elasticity to according to the elasticity of actual earth condition adjustment plate body, make measuring environment and actual conditions be closer, further promote and detect the precision.
Optionally, the anti-sticking films are arranged on one side of the plate body facing the soil layer and one side of the ring body facing the filling layer.
Through adopting above-mentioned technical scheme, the setting of antiseized membrane can reduce earth adhesion and the probability of concrete adhesion on the ring body to make plate body and ring body used repeatedly, resources are saved.
Optionally, a plurality of detection pieces are evenly arranged on the outer wall and the inner wall of the tubular pile in the circumferential direction.
Through adopting above-mentioned technical scheme, all set up the detection piece at inner and outer wall, can make the check point distribute more evenly, the testing result is more accurate.
In summary, the present application includes at least one of the following beneficial technical effects:
1. modeling is carried out through the reduced proportion, the load internal force of the pipe pile after the reduced proportion is detected in a laboratory through detection equipment, the load internal force condition of the pipe pile is obtained, the pipe pile does not need to be inserted into a construction site for actual measurement, the probability of resource waste caused by disqualification of the pipe pile is reduced, and the cost of pipe pile detection is saved;
2. soil in the area where the tubular pile is actually inserted is adopted, so that the simulation environment for detection can be more similar to the field, and the detection precision is improved;
3. the gap between the ring body and the inner wall of the tubular pile is used for pouring a filling layer, the arrangement of the ring body and the inflation assembly can reduce the area of holes of the tubular pile and reduce the pouring filling amount of concrete, thereby achieving the effect of saving resources;
4. the elastic piece is arranged, so that the impact force of the placing plate and the configuration block on the detection equipment can be relieved when the tubular pile is broken, and the probability of damage to the detection equipment is reduced;
5. the arrangement of the soil layer can simulate the actual environment, the detection precision is improved, and the arrangement of the plate body can reduce the probability that the soil layer is separated from the tubular pile under the action of gravity;
6. the arrangement of the anti-sticking film can reduce the probability that soil is adhered to the plate body and the ring body, so that the plate body and the ring body can be reused, and resources are saved.
Drawings
Fig. 1 is a block flow diagram of the testing method of the present embodiment.
Fig. 2 is an overall configuration diagram of the test apparatus of the present embodiment.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Description of the reference numerals: 1. a base; 2. placing a tray; 3. a tubular pile; 4. pressing a plate; 5. a jack; 6. placing the plate; 7. a counterweight block; 8. a fill assembly; 81. a ring body; 82. an inflatable member; 83. a filling layer; 9. a vertical rod; 10. an elastic member; 11. a layer of clay; 12. a plate body; 13. a pressure mechanism; 131. a mounting frame; 132. a pressure spring; 14. an adjustment mechanism; 141. adjusting the screw rod; 142. adjusting the screw cap; 15. an anti-adhesion film; 16. and (6) detecting the sheet.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a method for testing the internal force of a prestressed pipe pile load, which comprises the following steps of: s1: equal proportion modeling, namely producing the tubular piles 3 which are reduced in equal proportion according to proportion by adopting the same material and same process, modeling by reducing the proportion, detecting the load internal force of the tubular piles 3 which are reduced in proportion in a laboratory through detection equipment, acquiring the load internal force condition of the tubular piles 3, not needing to insert the tubular piles 3 into a construction site for actual measurement, reducing the probability of resource waste caused by disqualification of the tubular piles 3, and saving the detection cost of the tubular piles 3; s2: arranging detection points, wherein the detection points are circumferentially arranged on the inner wall and the outer wall of the tubular pile 3 and are uniformly arranged as much as possible; s3: the method comprises the following steps of (1) installing the tubular pile 3, namely installing the tubular pile 3 on a detection device, plugging the tubular pile 3 circumferentially by adopting soil, digging the soil actually inserted into an area by the soil, simulating the environment of the area where the tubular pile 3 is actually inserted, and plugging the soil circumferentially on the tubular pile 3 to enable the tubular pile 3 to be capable of simulating a real environment during detection, so that the detection precision is improved; s4: filling the interior, and pouring and filling concrete in the tubular pile 3; s5: loading load, namely loading the load on the tubular pile 3, wherein the loading of the load is carried out according to the actual scaling of the tubular pile 3; s6: and testing the internal force, detecting the internal force of the tubular pile 3 through the loaded and pre-arranged test points, obtaining a detection result through calculation according to the detection data, and calculating the detection data by considering the actual scaling of the tubular pile 3 so as to ensure the calculation accuracy.
A testing device applying a testing method of internal force of a prestressed pipe pile load is disclosed, and referring to fig. 2 and fig. 3, the testing device comprises a base 1 placed on a detection platform or the ground, a placing disc 2 is fixedly arranged on one side of the base 1, which is far away from the ground, a pipe pile 3 is placed on the placing disc 2, a pressing plate 4 is placed on the pipe pile 3, a jack 5 is arranged on the pressing plate 4, a placing plate 6 is arranged on the jack 5, the jack 5 is preferably provided with a plurality of jacks, the placing plate 6 can be placed more smoothly by the plurality of jacks 5, a balancing weight 7 is placed on the placing plate 6, a filling component 8 is arranged in the pipe pile 3, the filling component 8 comprises a ring body 81 inserted in the inner wall of the pipe pile 3 in a clearance manner, an inflating part 82 arranged on the inner wall of the ring body 81 and a filling layer 83 filled between the ring body 81 and the inner wall of the pipe pile 3, when the ring body 81 is placed on the placing disc 2, one end far away from the placing disc 2 is slightly lower than the metal 81 of a pipeline, the inflatable part 82 is preferably an air bag, the annular body 81 is supported by abutting against the inner wall of the annular body 81 through inflation, the filling layer 83 is made of concrete, the annular body 81 and the inflatable part 82 are matched through pouring the concrete to simulate a completely poured state, one side of the annular body 81, facing the filling layer 83, is covered with one anti-sticking film 15, the anti-sticking film 15 is made of a PE film, the PE film is low in cost and has an anti-sticking effect, the PE film can be replaced by tearing off the PE film even if the PE film is adhered to the PE film, so that the reuse of the annular body 81 is ensured, the use cost is saved, the upper surface of the inflatable part 82 is covered with a metal sheet, the metal sheet can isolate the concrete from the inflatable part 82, the outer wall of the filling layer 83 abuts against the inner wall of the tubular pile 3, the inner wall of the filling layer 83 abuts against the outer wall of the annular body 81, the gap between the annular body 81 and the inner wall of the tubular pile 3 is used for pouring the filling layer 83, the arrangement of the annular body 81 and the inflation assembly can reduce the area of the hole of the tubular pile 3, the pouring and filling amount of the concrete is reduced, so that the effect of saving resources is achieved.
Referring to fig. 2, the outer wall of the tubular pile 3 is coated with a soil layer 11, four plate bodies 12 are arranged outside the soil layer 11, the four plate bodies 12 are connected end to coat the soil layer 11, an anti-sticking film 15 is arranged on one side of each plate body 12, which faces the soil layer 11, the anti-sticking film 15 is a PE film, the PE film has low cost and an anti-sticking effect, and even if the PE film is adhered to the PE film, the PE film can be removed for replacement, so that the plate bodies 12 can be repeatedly used, and the use cost is saved; four pressure mechanisms 13 are mounted on the base 1 corresponding to the plate body 12, each pressure mechanism 13 comprises a mounting frame 131 mounted on the base 1 and a plurality of pressure springs 132 arranged between the mounting frame 131 and the plate body 12, the mounting frame 131 and the plate body 12 are arranged in a gap, one end of each pressure spring 132 is fixedly arranged on the mounting frame 131, the other end of each pressure spring 132 abuts against the plate body 12, and the elasticity of each pressure spring 132 drives the plate body 12 to slide towards the direction away from the mounting frame 131; an adjusting mechanism 14 is arranged between the plate body 12 and the mounting frame 131, the adjusting mechanism 14 comprises an adjusting screw 141 fixedly arranged on one side of the plate body 12 facing the mounting frame 131 and an adjusting nut 142 in threaded connection with the adjusting screw 141, one end of the adjusting screw 141 far away from the plate body 12 penetrates through the mounting frame 131, one end of the adjusting nut 142 far away from the plate body 12 abuts against the mounting frame 131, the outer wall of the tubular pile 3 is coated with a layer of soil layer 11, so that the detection environment is more similar to the actual environment, the detection precision is improved, the soil layer 11 is arranged on the ground in the actual situation, the soil does not exist in the circumferential direction of the soil in the detection environment, the soil is not supported in the circumferential direction and can be separated from the tubular pile 3 under the action of gravity, therefore, the plate body 12 is required to be coated with soil to limit the separation, meanwhile, the plate body 12 is directly coated with rigid materials to influence the soil, a pressure mechanism 13 is arranged on the plate body 12, so that the plate body 12 can imitate the soil pressure in the actual environment, and the soil layer 11 can be more similar to the actual environment; .
Referring to fig. 2, an inverted T-shaped groove is formed in the base 1 corresponding to the mounting frame 131, a bolt penetrates through the T-shaped groove and penetrates through the mounting frame 131, the mounting frame 131 is fixed through a threaded connection nut, when the elastic force between the plate body 12 and the mounting frame 131 is adjusted, the gap between the plate body 12 and the mounting frame 131 is adjusted, and the plate body 12 needs to be guaranteed to be connected end to end, so that the mounting frame 131 needs to be adjusted through the T-shaped groove and the bolt nut, and the mounting frame 131 can be suitable for adjusting the plate body 12.
Referring to fig. 2, 3 outer walls of tubular pile and inner wall circumference evenly are provided with a plurality of detection pieces 16, detect 16 electric connection information receivers of piece, transmit and record the internal force data that detect out, all set up detection piece 16 at inner and outer wall, can make the check point distribute more evenly, and the testing result is more accurate.
Referring to fig. 2, four vertical rods 9 are vertically arranged on the base 1 in the circumferential direction of the placing disc 2, the vertical rods 9 penetrate through the placing plate 6, and the placing plate 6 is arranged on the vertical rods 9 in a sliding manner along the length direction of the vertical rods 9; all the cover is equipped with elastic component 10 on montant 9, the preferred spring of elastic component 10, 10 one end butt of elastic component is on base 1, the other end orientation is placed board 6 and is extended and with place 6 clearance fit of board, when tubular pile 3 appears damaging, place board 6 and balancing weight 7 and can glide under the effect of gravity, thereby crushing check out test set easily, setting up of elastic component 10 can provide the reaction force to placing board 6 and balancing weight 7, reduce the probability that check out test set was crushed, and elastic component 10 sets up with the clearance of placing board 6, the elasticity that has reduced elastic component 10 causes the probability of influence to detecting.
The implementation principle of the embodiment of the application is as follows: fixing a base 1 on the ground or a detection platform, then placing a tubular pile 3 on a placing disc 2, then arranging detection sheets 16 on the inner wall and the outer wall of the tubular pile 3, placing a ring body 81 and an inflation piece 82 in the tubular pile 3, inflating the inflation piece 82, pouring concrete between the ring body 81 and the tubular pile 3, after the concrete is solidified, adhering a soil layer 11 to the outer wall of the tubular pile 3 in the circumferential direction, arranging a plate body 12 with well-adjusted elasticity outside the soil layer 11, then pressing a pressing plate 4 on the tubular pile 3, placing a jack 5 on the pressing plate 4, arranging a placing plate 6 on the jack 5 after the jack 5 is placed, placing a configuration block with proper weight on the placing plate 6, detecting the tubular pile 3, detecting the numerical value of the loading internal force of the tubular pile 3 through the detection sheets 16, and obtaining the actual loading internal force of the tubular pile 3 through calculation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A method for testing the internal force of a prestressed pipe pile under load comprises the following steps:
s1: equal proportion modeling, namely producing the tube piles which are reduced in equal proportion according to the proportion by adopting the same material and the same process;
s2: arranging detection points, namely arranging the detection points on the inner wall and the outer wall of the tubular pile in the circumferential direction;
s3: installing the tubular pile, namely installing the tubular pile on a detection device, and plugging the tubular pile circumferentially by adopting soil;
s4: filling the interior, and pouring and filling concrete in the tubular pile;
s5: loading load, namely loading the load on the tubular pile;
s6: and testing the internal force, detecting the internal force of the tubular pile through the loaded and pre-arranged test points, and acquiring a detection result according to the detection data.
2. The method for testing the internal force of the prestressed pipe pile under load according to claim 1, wherein: soil in the actual inserting area is dug, and the environment of the actual inserting area of the pipe pile (3) is simulated.
3. A test apparatus using the test method according to claim 1, wherein: including base (1), base (1) deviates from ground one side and is provided with places dish (2), place and place tubular pile (3) on dish (2), place clamp plate (4) on tubular pile (3), set up jack (5) on clamp plate (4), be provided with on jack (5) and place board (6), place and place balancing weight (7) on board (6), be provided with in tubular pile (3) and fill subassembly (8), fill subassembly (8) including ring body (81), aerify piece (82) and filling layer (83), ring body (81) clearance is inserted and is located tubular pile (3) inner wall, it sets up at ring body (81) inner wall to fill piece (82), filling layer (83) packing sets up between ring body (81) and tubular pile (3) inner wall, filling layer (83) outer wall butt tubular pile (3) inner wall, filling layer (83) inner wall butt ring body (81) outer wall.
4. The device for testing the internal force of the prestressed pipe pile load according to claim 3, is characterized in that: the base (1) is vertically provided with a plurality of vertical rods (9) in the circumferential direction of the placing disc (2), the vertical rods (9) all penetrate through the placing plate (6), and the placing plate (6) slides along the length direction of the vertical rods (9) and is arranged on the vertical rods (9).
5. The device for testing the internal force of the prestressed pipe pile load according to claim 4, is characterized in that: elastic pieces (10) are sleeved on the vertical rods (9), one ends of the elastic pieces (10) are abutted to the base (1), and the other ends of the elastic pieces extend towards the placing plate (6) and are in clearance fit with the placing plate (6).
6. The device for testing the internal force of the prestressed pipe pile under load according to claim 5, characterized in that: tubular pile (3) outer wall cladding loam layer (11), be provided with a plurality of plate bodies (12) outside loam layer (11), it is a plurality of plate body (12) end to end cladding loam layer (11).
7. The device for testing the internal force of the prestressed pipe pile under load according to claim 6, characterized in that: correspond plate body (12) on base (1) and install pressure mechanism (13), pressure mechanism (13) include mounting bracket (131) and pressure spring (132), and mounting bracket (131) and plate body (12) clearance set up, install on base (1) mounting bracket (131), pressure spring (132) set up between mounting bracket (131) and plate body (12), and pressure spring (132) one end sets firmly on mounting bracket (131), other end butt plate body (12), and mounting bracket (131) direction is kept away from in elasticity drive plate body (12) orientation of pressure spring (132) slides.
8. The device for testing the internal force of the prestressed pipe pile under load according to claim 7, characterized in that: be provided with adjustment mechanism (14) between plate body (12) and mounting bracket (131), adjustment mechanism (14) include adjusting screw (141) and adjusting nut (142), adjusting screw (141) set firmly at plate body (12) towards mounting bracket (131) one side, and plate body (12) one end is kept away from in adjusting screw (141) and mounting bracket (131) is run through to adjusting nut (142), adjusting nut (142) deviate from plate body (12) one end butt on mounting bracket (131) in mounting bracket (131), and adjusting nut (142) threaded connection is on adjusting screw (141).
9. The device for testing the internal force of the prestressed pipe pile load according to claim 8, is characterized in that: the anti-sticking film (15) is arranged on one side of the plate body (12) facing the muddy soil layer (11) and one side of the ring body (81) facing the filling layer (83).
10. The device for testing the internal force of the prestressed pipe pile load according to claim 3, is characterized in that: the outer wall and the inner wall of the tubular pile (3) are circumferentially and uniformly provided with a plurality of detection pieces (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211027839.5A CN115233751B (en) | 2022-08-25 | 2022-08-25 | Method and device for testing load internal force of prestressed pipe pile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211027839.5A CN115233751B (en) | 2022-08-25 | 2022-08-25 | Method and device for testing load internal force of prestressed pipe pile |
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| CN115233751A true CN115233751A (en) | 2022-10-25 |
| CN115233751B CN115233751B (en) | 2023-10-13 |
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| CN202211027839.5A Active CN115233751B (en) | 2022-08-25 | 2022-08-25 | Method and device for testing load internal force of prestressed pipe pile |
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| CN213296446U (en) * | 2020-08-16 | 2021-05-28 | 山东众联恒信工程集团有限公司 | Static pressure tubular pile end resistance testing arrangement |
| CN214940486U (en) * | 2021-05-24 | 2021-11-30 | 云南明博地基基础工程有限公司 | Foundation engineering multisection prestressing force tubular pile body internal force measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201722711U (en) * | 2010-05-13 | 2011-01-26 | 机械工业勘察设计研究院 | Internal force testing device for PHC tubular pile load test |
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| CN115233751B (en) | 2023-10-13 |
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