CN111663524B - Cast-in-place pile casting elevation monitoring device and construction method thereof - Google Patents
Cast-in-place pile casting elevation monitoring device and construction method thereof Download PDFInfo
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- CN111663524B CN111663524B CN202010676354.3A CN202010676354A CN111663524B CN 111663524 B CN111663524 B CN 111663524B CN 202010676354 A CN202010676354 A CN 202010676354A CN 111663524 B CN111663524 B CN 111663524B
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- 238000005266 casting Methods 0.000 title claims abstract description 37
- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000009933 burial Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
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- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The invention discloses a cast-in-place pile casting elevation monitoring device and a construction method thereof, belonging to the technical field of civil engineering, wherein the cast-in-place pile casting elevation monitoring device comprises: the outer wall of the conduit is provided with an upper capacitor plate; the inner wall of the sleeve is provided with a lower capacitor plate, the sleeve is sleeved on the outer wall of the catheter, the upper capacitor plate is positioned in the sleeve, and the upper capacitor plate is parallel to the lower capacitor plate; and one end of the separating plate is connected with the outer wall of the sleeve, the other end of the separating plate is fixedly connected with the top end of the sleeve through a connecting rod, and water permeable holes are formed in the separating plate. This bored concrete pile pours elevation monitoring device is through setting up the electric capacity board on the outer wall of pipe, is provided with down the electric capacity board on the sheathed tube inner wall, is provided with the division board on the sheathed tube bottom outer wall, when the concrete upwards promotes the sleeve pipe, makes down the electric capacity board upwards electric capacity board be close to, is connected to the universal meter registration between electric capacity board and the lower electric capacity board and changes this moment, and the concrete has been pour to the height of division board to the description.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a cast-in-place pile casting elevation monitoring device and a construction method thereof.
Background
In recent decades, with the development of the construction industry, super high-rise buildings are increasingly in China, and when the super high-rise buildings are in places with poor soil quality, pile foundations are needed, the pile diameters of the general pile foundations are large, and the application of cast-in-place piles is relatively large. And two problems mainly exist in the process of constructing the bored concrete pile. One is that the control of the height of concrete over-filled piles is a very troublesome problem. Because the excessive filling amount wastes concrete, the cost required by pile cutting is indirectly increased, the resource waste is caused, and the material consumption is increased; if the amount of the excessive filling is small, a large amount of mortar or even soil is contained in the pile head, so that the construction quality of the pile head is guaranteed, the design grade is not reached, reinforcing treatment is needed, and the construction process is complex. At present, the traditional construction method is basically adopted at home and abroad, namely, the distance from the pile top to the pile casing is measured by using a measuring rope to control the over-filling height (the over-filling height is not less than 50cm of the pile top elevation). Secondly, how to control the burial depth of the guide pipe, namely how to strictly control the lifting speed of the guide pipe, if the lifting speed is too high, a slurry layer is positioned at the middle of the pile bottom or the pile body, then mud is clamped or broken pile is formed, and the quality of the pile body cannot meet the requirement; if the speed of the guide pipe is lower, the pouring speed is higher, more aggregate is easy to deposit at the deep part of the hole body, and the strength of the upper part of the pile body is easy to be lower due to the segregation of concrete in the vibration process. Therefore, the reasonable control of the lifting speed of the guide pipe is an important step for avoiding heavy engineering quality accidents such as broken piles, weak piles and the like. At present, the traditional construction method is basically adopted at home and abroad, namely, the length from the concrete pouring surface in the pile foundation to the top opening of the guide pipe is measured by using a measuring rope, then the buried depth of the guide pipe is obtained by subtracting the length just measured from the length of the guide pipe, and meanwhile, the superirrigation height can also be obtained. Wherein the depth of the conduit embedded in the concrete is generally 2-6 m. The height of the superirrigation is generally 0.5-1 m.
However, the conventional construction method has the following problems: the rope is soft, and the measured data is not accurate enough; the measurement is carried out by adopting a measuring rope and a reinforcing steel bar head or a bamboo pole, the influence degree of human experience is large, and the measurement cannot be carried out accurately. This conventional method faces the following problems:
Problems with overspray: 1. less filling, post pile filling, extremely high cost and quality and progress influence; 2. post pile cutting, material and labor waste, high cost and progress influence; 3. environmental protection, energy saving, high garbage disposal cost and environmental impact caused by waste disposal.
The problem that the speed of pulling the catheter is not well controlled: if the speed is too fast, the slurry layer is positioned in the middle of the pile bottom or the pile body, mud is clamped or broken piles are formed, and the quality of the pile body cannot meet the requirement; if the speed of the guide pipe is lower, the pouring speed is higher, more aggregate is easy to deposit in the deep part of the hole body, and meanwhile, the strength of the upper part of the pile body is lower due to segregation of concrete in the vibration process.
Therefore, how to provide a cast-in-place pile casting elevation monitoring device capable of monitoring the concrete casting height, avoiding less casting and over casting, and further improving the casting quality of the cast-in-place pile is a problem to be solved by those skilled in the art.
Disclosure of Invention
The invention provides a cast-in-place pile casting height monitoring device, which can be used for detecting casting height in a concrete casting process, avoiding less casting and over casting and further improving casting quality of cast-in-place piles.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a cast-in-place pile casting elevation monitoring device, comprising:
the outer wall of the guide pipe is provided with an upper capacitor plate;
The upper capacitor plate is positioned in the sleeve, and the upper capacitor plate is parallel to the lower capacitor plate;
one end of the separation plate is connected with the outer wall of the sleeve, the other end of the separation plate is fixedly connected with the top end of the sleeve through a connecting rod, and water permeable holes are formed in the separation plate;
And the upper capacitor plate and the lower capacitor plate are respectively provided with a wire, and the wires are used for measuring the capacitance between the upper capacitor plate and the lower capacitor plate.
The beneficial effects of adopting above-mentioned technical scheme are: through set up the electric capacity board on the outer wall of pipe, the sleeve pipe is established to the cover simultaneously on the outer wall of pipe, and be provided with down the electric capacity board on the sheathed tube inner wall, be provided with the division board on the sheathed tube bottom outer wall, pour into the pile bottom from the pipe when concrete, after the division board is still being reached to the high altitude contact of concrete, because concrete is pouring into, the water in the concrete can pass through the hole of permeating water this moment, but the concrete is blocked in the below of division board, under the promotion of concrete, the outer fringe of division board upwards rotates, the force of rotation production is conducted to sheathed tube top through the connecting rod, and then make the sleeve pipe upwards slide along the pipe, make down electric capacity board upwards electric capacity board be close to, the electric capacity registration on the universal meter that is connected to between electric capacity board and the electric capacity board down at this moment changes, and then the concrete has been pour to the height of division board, simultaneously also can calculate the concrete, this device simple structure, and is with low costs, simultaneously, as long as the distance between electric capacity board and the electric capacity board down changes and can show on the universal meter.
Further, a guide groove is axially formed in the outer wall of the guide pipe along the guide pipe, the guide groove is formed in the lower portion of the lower capacitor plate, a pulley is fixedly arranged on the inner wall of the sleeve, and the pulley is matched with the guide groove.
The beneficial effects of adopting above-mentioned technical scheme are: through be equipped with the guide way on the outer wall of pipe, and be equipped with the pulley with the guide way adaptation on the sheathed tube inner wall, can guarantee under the pivoted effect of splitter plate, the sleeve pipe upwards slides along fixed direction.
Further, the separation plate comprises a plurality of pushing plates, the pushing plates are arranged outside the sleeve in an axial array mode and are connected with the outer wall of the sleeve, and one ends, away from the sleeve, of the pushing plates are fixedly connected with the top end of the guide pipe through connecting rods.
The beneficial effects of adopting above-mentioned technical scheme are: through setting up the separator plate into a plurality of push plates, can guarantee that every push plate under the effect of pile bottom concrete, when the high of concrete reached the push plate, the push plate can react fast, keeps away from sheathed tube one end and can rotate along with the height of concrete upwards.
Further, end covers are arranged between the two ends of the sleeve and the guide pipe, the outer edges of the end covers are fixedly connected with the sleeve, and the inner edges of the end covers are attached to the guide pipe. The inner cavity of the sleeve can form a closed space through the connection of the end cover, so that water is prevented from entering the sleeve when working in an underwater environment, the relative dielectric constant between the upper capacitor plate and the lower capacitor plate is changed, and the measurement accuracy of the universal meter is further affected.
Further, the inner edge of the end cover is provided with a rubber sealing coating. By arranging the rubber sealing coating on the surface of the inner edge, the tightness between the end cover and the guide pipe can be ensured, and water is prevented from entering the sleeve when the sleeve works in an underwater environment.
The second object of the invention is to provide a construction method of the cast-in-place pile casting elevation monitoring device, which can be used for detecting the casting height in the concrete casting process, avoiding less casting and over casting, and further improving the casting quality of the cast-in-place pile.
The invention provides a construction method of a cast-in-place pile casting elevation monitoring device, which comprises the following steps:
S10, installing a sleeve and a conduit together, and installing a push plate on the outer wall of the sleeve, so that a parallel plate capacitor is formed between an upper capacitance plate on the outer wall of the conduit and a lower capacitance plate on the inner wall of the sleeve;
S20, connecting the universal meter with reserved wires on the upper capacitor plate and the lower capacitor plate;
S30, connecting the guide pipes installed in the S10 one by one through a plurality of connecting pipes and lowering the guide pipes into pile holes to be poured;
S40, pouring concrete from the connecting pipe, and enabling the concrete to flow to the pile bottom along the inner walls of the connecting pipe and the guide pipe;
S50, when the height of the concrete reaches the position of the push plate, the concrete pushes the outer edge of the push plate to rotate upwards around the joint of the inner edge and the sleeve, so that the sleeve is driven to move upwards, the lower capacitor plate on the inner wall of the sleeve is close to the upper capacitor plate, and the indication of the multimeter is obviously changed;
S60, when the indication of the multimeter is changed, the guide pipe is lifted upwards by the height of one connecting pipe, at the moment, the concrete is separated from the push plate, the push plate and the sleeve are returned to the horizontal state under the action of power, and the sleeve is returned to the original state;
and S70, repeating the steps S40 to S60 until the height of the concrete pouring reaches the preset height.
The construction method of the cast-in-place pile casting elevation monitoring device provided by the invention has the beneficial effects that: the concrete structure, the connection relation, the beneficial effects and the like of the cast-in-place pile casting elevation monitoring device are described in detail in the above text, and are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a cast-in-place pile casting elevation monitoring device provided by the invention;
FIG. 2 is a schematic view of a cross-section A-A provided by the invention;
Fig. 3 is a schematic diagram of a separation plate structure provided by the invention.
In the figure: 1 is a catheter; 2 is a sleeve; 3 is a separating plate; 31 is a water permeable hole; 32 is a push plate; 4 is a connecting rod; 5 is a wire; 6 is an end cover; 7 is an upper capacitor plate; 8 is a lower capacitor plate; 9 is a guide groove; 10. is a pulley.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the mechanisms or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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 relative importance.
Referring to fig. 1-3, an embodiment of the invention discloses a cast-in-place pile casting elevation monitoring device, which comprises:
The device comprises a conduit 1, wherein an upper capacitance plate 7 is arranged on the outer wall of the conduit 1, the upper capacitance plate 7 is fixedly connected with the outer wall of the conduit 1, an external thread section is arranged at the upper end part of the conduit 1 and used for connecting the conduit 1 with a connecting pipe through threads, one end of the connecting pipe is provided with an external thread structure, the other end of the connecting pipe is provided with an internal thread structure, the internal threads of the connecting pipe can be connected with the external threads of the conduit 1, a plurality of connecting pipes can be sequentially connected end to end through the internal threads and the external threads at two ends, one end of the connecting pipe at the final end is provided with the internal threads, the other end of the connecting pipe is provided with a straight wall structure, and no thread section is arranged;
The casing 2, is equipped with the lower capacitor plate 8 on the inner wall of the casing 2, the lower capacitor plate 8 is fixedly connected with inner wall of the casing 2, the casing 2 is sleeved on the outer wall of the conduit 1, and the upper capacitor plate 7 is located inside the casing 2, the upper capacitor plate 7 and lower capacitor plate 8 are parallel to form the parallel plate capacitor;
The outer edge of the upper capacitor plate 7 is in clearance with the inner wall of the sleeve 2, the lower capacitor plate 8 is in clearance with the outer wall of the guide tube 1, a wire 5 is fixedly connected to the upper surface of the upper capacitor plate 7, the wire 5 is connected to the lower surface of the lower capacitor plate 8, the wire 5 connected with the lower capacitor plate 8 sequentially penetrates through the clearance between the lower capacitor plate 8 and the outer wall of the guide tube 1 and the clearance between the outer edge of the upper capacitor plate 7 and the inner wall of the sleeve 2, and the end cover 6 of the upper end of the sleeve 2, which extends out of the wire 5, is connected with a universal meter.
And one end of the separation plate 3 is connected with the outer wall of the sleeve 2, the other end of the separation plate 3 is fixedly connected with the top end of the sleeve 2 through a connecting rod 4, and the separation plate 3 is provided with a water permeable hole 31.
Specifically, be equipped with guide slot 9 along guide pipe 1 axial on the outer wall of pipe 1, the below of lower electric capacity board 8 is located to guide slot 9, in this embodiment, guide slot 9 sets up four, and four guide slot 9 interval arrangement, the contained angle between two adjacent guide slots 9 is 90, and the fixed pulley 10 that is provided with on the inner wall of sleeve pipe 2, pulley 10 also is provided with four, four pulley 10 and four guide slot 9 one-to-one, and pulley 10 and guide slot 9 adaptation, pulley 10 can slide from top to bottom at the outer wall of pipe 1 along guide slot 9, in other embodiments, the quantity of guide slot 9 and pulley 10 can be set up according to actual demand.
Specifically, the separation plate 3 includes a plurality of push plates 32, and a plurality of push plates 32 are arranged in the outside of sleeve pipe 2 in the axle array and all are connected with the outer wall of sleeve pipe 2, and the one end that sleeve pipe 2 was kept away from to a plurality of push plates 32 is through connecting rod 4 and the top fixed connection of pipe 1, in this embodiment, push plates 32 set up to four, and every push plate 32 is 90 sector, is equipped with a plurality of holes 31 that permeate water on the push plate 32, has the separation seam between two adjacent push plates 32.
Specifically, end covers 6 are arranged between the two ends of the sleeve 2 and the guide pipe 1, the outer edges of the end covers 6 are welded with the inner wall of the sleeve 2, the inner edges of the end covers 6 are attached to the guide pipe 1, and rubber sealing coatings are arranged on the inner edges of the end covers 6.
The embodiment of the invention discloses a construction method for implementing a cast-in-place pile casting elevation monitoring device as in the embodiment 1, which comprises the following steps:
S10, installing a sleeve and a conduit together, and installing a push plate on the outer wall of the sleeve, so that a parallel plate capacitor is formed between an upper capacitance plate on the outer wall of the conduit and a lower capacitance plate on the inner wall of the sleeve;
S20, connecting the universal meter with reserved wires on the upper capacitor plate and the lower capacitor plate;
S30, connecting the guide pipes installed in the S10 one by one through a plurality of connecting pipes and lowering the guide pipes into pile holes to be poured;
S40, pouring concrete from the connecting pipe, and enabling the concrete to flow to the pile bottom along the inner walls of the connecting pipe and the guide pipe;
S50, when the height of the concrete reaches the position of the push plate, the concrete pushes the outer edge of the push plate to rotate upwards around the joint of the inner edge and the sleeve, so that the sleeve is driven to move upwards, the lower capacitor plate on the inner wall of the sleeve is close to the upper capacitor plate, and the indication of the multimeter is obviously changed;
S60, when the indication of the universal meter changes, the guide pipe is lifted upwards by the height of one connecting pipe, at the moment, the concrete is separated from the push plate, the push plate and the sleeve are restored to the horizontal state under the action of power, and the sleeve is restored to the original state;
and S70, repeating the steps S40 to S60 until the height of the concrete pouring reaches the preset height.
The construction method of the cast-in-place pile casting elevation monitoring device disclosed by the embodiment comprises the following specific operations: for example, the length of the guide tube is 6m, the connecting tubes are 3m, the separating plate is arranged at a position 4m away from the lower end of the guide tube, when the change of the reading of the universal meter is seen for the first time, the concrete elevation is 4m, and the burial depth of the guide tube is 4m; the guide pipe can be pulled up until the first connecting pipe is detached, and the upper connecting pipes are 3m, so that when the guide pipe is pulled up by 3m, the buried depth of the guide pipe is still 1m, and the condition that the guide pipe is pulled out of concrete can not occur. Because the guide pipe is pulled upwards, the pushing plate is not stressed by the upward force of the concrete, at the moment, the pushing plate returns to the horizontal state, and the sleeve returns to the original position. When the second reading of the multimeter is changed, the burial depth of the guide pipe is changed from 1m to 4m, namely the concrete elevation is increased by 3m, the total height is 7m, and then the step of pulling the guide pipe is repeated, and meanwhile, the multimeter counts once again, namely twice. The subsequent concrete elevation h=4+multimeter count is therefore 3.
The present invention will be further described in detail by the following examples.
Example 1
Referring to fig. 1 and 2, the invention discloses a cast-in-place pile casting elevation monitoring device, which comprises:
The device comprises a conduit 1, wherein an upper capacitance plate 7 is arranged on the outer wall of the conduit 1, the upper capacitance plate 7 is fixedly connected with the outer wall of the conduit 1, an external thread section is arranged at the upper end part of the conduit 1 and used for connecting the conduit 1 with a connecting pipe through threads, one end of the connecting pipe is provided with an external thread structure, the other end of the connecting pipe is provided with an internal thread structure, the internal threads of the connecting pipe can be connected with the external threads of the conduit 1, a plurality of connecting pipes can be sequentially connected end to end through the internal threads and the external threads at the two ends, one end of the connecting pipe at the final end is provided with the internal threads, the other end of the connecting pipe is of a straight wall structure, and no thread section is arranged;
The casing 2, is equipped with the lower capacitor plate 8 on the inner wall of the casing 2, the lower capacitor plate 8 is fixedly connected with inner wall of the casing 2, the casing 2 is sleeved on the outer wall of the conduit 1, and the upper capacitor plate 7 is located inside the casing 2, the upper capacitor plate 7 and lower capacitor plate 8 are parallel to form the parallel plate capacitor;
The outer edge of the upper capacitor plate 7 is in clearance with the inner wall of the sleeve 2, the lower capacitor plate 8 is in clearance with the outer wall of the guide tube 1, a wire 5 is fixedly connected to the upper surface of the upper capacitor plate 7, the wire 5 is connected to the lower surface of the lower capacitor plate 8, the wire 5 connected with the lower capacitor plate 8 sequentially penetrates through the clearance between the lower capacitor plate 8 and the outer wall of the guide tube 1 and the clearance between the outer edge of the upper capacitor plate 7 and the inner wall of the sleeve 2, and the end cover 6 of the upper end of the sleeve 2, which extends out of the wire 5, is connected with a universal meter.
The separation plate 3, the outer wall fixed connection of one end and sleeve pipe 2 of separation plate 3, its other end passes through connecting rod 4 and sleeve pipe 2 top fixed connection, is equipped with the hole 31 that permeates water on the separation plate 3, in this embodiment, separation plate 3 is a whole board.
Specifically, be equipped with guide slot 9 along guide pipe 1 axial on the outer wall of pipe 1, the below of lower electric capacity board 8 is located to guide slot 9, in this embodiment, guide slot 9 sets up four, and four guide slot 9 interval arrangement, the contained angle between two adjacent guide slots 9 is 90, and the fixed pulley 10 that is provided with on the inner wall of sleeve pipe 2, pulley 10 also is provided with four, four pulley 10 and four guide slot 9 one-to-one, and pulley 10 and guide slot 9 adaptation, pulley 10 can slide from top to bottom at the outer wall of pipe 1 along guide slot 9, in other embodiments, guide slot 9 and pulley 10 can set up quantity according to actual demand.
Specifically, end covers are arranged between the two ends of the sleeve 2 and the guide pipe 1, the outer edges of the end covers 6 are welded with the inner wall of the sleeve 2, the inner edges of the end covers 6 are attached to the guide pipe 1, and rubber sealing coatings are arranged on the inner edges of the end covers 6.
Working principle: after concrete is injected into the pile bottom from a connecting pipe at the top end for a period of time, the guide pipe is wrapped by the concrete, when the height of the concrete reaches a certain height, after the concrete contacts the separating plate, the separating plate moves upwards under the pushing of the concrete because the concrete is continuously injected, the separating plate is fixed on the inner wall of the sleeve due to the fixing of the separating plate and the outer wall of the sleeve, the separating plate drives the sleeve and the lower capacitor plate to move upwards together, meanwhile, the guide pipe does not move upwards, the upper capacitor plate fixed on the outer wall of the guide pipe does not move upwards, and therefore, the distance between the lower capacitor plate and the upper capacitor plate changes in the upward movement process of the separating plate according to a formulaWhen the distance between the upper capacitor plate and the lower capacitor plate changes, the reading of the universal meter changes rapidly, and the universal meter counts once. Therefore, as long as the reading of the universal meter is obviously changed, the concrete height reaches the height of the separating plate, and the casting height of the concrete column can be calculated.
Example 2
Referring to fig. 1-3, the invention discloses a cast-in-place pile casting elevation monitoring device, which comprises:
The device comprises a conduit 1, wherein an upper capacitance plate 7 is arranged on the outer wall of the conduit 1, the upper capacitance plate 7 is fixedly connected with the outer wall of the conduit 1, an external thread section is arranged at the position, close to the upper end, of the conduit 1 and used for connecting the conduit 1 with a connecting pipe through threads, one end of the connecting pipe is provided with an external thread structure, the other end of the connecting pipe is provided with an internal thread structure, the internal threads of the connecting pipe can be connected with the external threads of the conduit 1, a plurality of connecting pipes can be sequentially connected end to end through the internal threads and the external threads at the two ends, the connecting pipe at the final end can be provided with the internal threads at one end, the other end of the connecting pipe is provided with a straight wall structure, and the connecting pipe is provided with no thread section;
The casing 2, is equipped with the lower capacitor plate 8 on the inner wall of the casing 2, the lower capacitor plate 8 is fixedly connected with inner wall of the casing 2, the casing 2 is sleeved on the outer wall of the conduit 1, and the upper capacitor plate 7 is located inside the casing 2, the upper capacitor plate 7 and lower capacitor plate 8 are parallel to form the parallel plate capacitor;
The outer edge of the upper capacitor plate 7 is in clearance with the inner wall of the sleeve 2, the lower capacitor plate 8 is in clearance with the outer wall of the guide tube 1, a wire 5 is fixedly connected to the upper surface of the upper capacitor plate 7, the wire 5 is connected to the lower surface of the lower capacitor plate 8, the wire 5 connected with the lower capacitor plate 8 sequentially penetrates through the clearance between the lower capacitor plate 8 and the outer wall of the guide tube 1 and the clearance between the outer edge of the upper capacitor plate 7 and the inner wall of the sleeve 2, and the end cover 6 of the upper end of the sleeve 2, which extends out of the wire 5, is connected with a universal meter.
And one end of the separating plate 3 is pivotally connected with the outer wall of the sleeve 2, the other end of the separating plate 3 is fixedly connected with the top end of the sleeve 2 through a connecting rod 4, and the separating plate 3 is provided with a water permeable hole 31.
Specifically, be equipped with guide slot 9 along guide pipe 1 axial on the outer wall of pipe 1, the below of lower electric capacity board 8 is located to guide slot 9, in this embodiment, guide slot 9 sets up four, and four guide slot 9 interval arrangement, the contained angle between two adjacent guide slots 9 is 90, and the fixed pulley 10 that is provided with on the inner wall of sleeve pipe 2, pulley 10 also is provided with four, four pulley 10 and four guide slot 9 one-to-one, and pulley 10 and guide slot 9 adaptation, pulley 10 can slide from top to bottom at the outer wall of pipe 1 along guide slot 9, in other embodiments, guide slot 9 and pulley 10 can set up quantity according to actual demand.
Specifically, the separation plate 3 includes a plurality of push plates 32, and a plurality of push plates 32 are arranged in the outside of sleeve pipe 2 in the axle array and all are connected with the outer wall pivot of sleeve pipe 2, and the one end that sleeve pipe 2 was kept away from to a plurality of push plates 32 passes through connecting rod 4 and the top fixed connection of pipe 1, in this embodiment, push plates 32 set up to four, and every push plate 32 is 90 sector, is equipped with a plurality of holes 31 that permeate water on the push plate 32, exists the separation gap between two adjacent push plates 32.
Specifically, end covers are arranged between the two ends of the sleeve 2 and the guide pipe 1, the outer edges of the end covers 6 are welded with the inner wall of the sleeve 2, the inner edges of the end covers 6 are attached to the guide pipe 1, and rubber sealing coatings are arranged on the inner edges of the end covers 6.
Working principle: after concrete is injected into the pile bottom from the connecting pipe at the top end, after a period of time, the guide pipe is wrapped by the concrete, when the height of the concrete reaches a certain height, after the concrete contacts the separating plate, because the concrete is continuously injected, therefore, the four pushing plates can be pushed by the concrete, the outer edges of the pushing plates rotate upwards around the pivoting connection part of the pushing plates and the sleeve, thereby the sleeve is driven to move upwards through the connecting rod between the upper end of the sleeve and the pushing plates, meanwhile, the upper capacitance plate fixed on the outer wall of the guide pipe does not move upwards because the guide pipe does not move upwards, and the lower capacitance plate is fixed on the inner wall of the sleeve, therefore, in the upward movement process of the sleeve, the distance between the lower capacitance plate and the upper capacitance plate is changed along with the upward movement of the sleeve according to a formulaWhen the distance between the upper capacitor plate and the lower capacitor plate changes, the reading of the universal meter changes rapidly, and the universal meter counts once. Therefore, as long as the reading of the universal meter is obviously changed, the concrete height reaches the height of the separating plate, and the casting height of the concrete column can be calculated.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A cast-in-place pile casting elevation monitoring device, comprising:
The device comprises a guide pipe (1), wherein an upper capacitor plate (7) is arranged on the outer wall of the guide pipe (1);
the device comprises a sleeve (2), wherein a lower capacitor plate (8) is arranged on the inner wall of the sleeve (2), the sleeve (2) is sleeved on the outer wall of the catheter (1), the upper capacitor plate (7) is positioned inside the sleeve (2), and the upper capacitor plate (7) is parallel to the lower capacitor plate (8);
The separating plate (3), one end of the separating plate (3) is connected with the outer wall of the sleeve (2), the other end of the separating plate is fixedly connected with the top end of the sleeve (2) through a connecting rod (4), and a water permeable hole (31) is formed in the separating plate (3);
the upper capacitor plate (7) and the lower capacitor plate (8) are respectively provided with a lead (5), and the leads (5) are used for measuring the capacitance between the upper capacitor plate (7) and the lower capacitor plate (8);
A guide groove (9) is formed in the outer wall of the guide pipe (1) along the axial direction of the guide pipe (1), the guide groove (9) is arranged below the lower capacitor plate (8), a pulley (10) is fixedly arranged on the inner wall of the sleeve (2), and the pulley (10) is matched with the guide groove (9);
The separation plate (3) comprises a plurality of pushing plates (32), the pushing plates (32) are arranged outside the sleeve (2) in an axial array mode and are connected with the outer wall of the sleeve (2), and one ends, far away from the sleeve (2), of the pushing plates (32) are fixedly connected with the top end of the guide pipe (1) through connecting rods (4);
end covers are arranged between the two ends of the sleeve (2) and the guide pipe (1), the outer edge of the end cover (6) is fixedly connected with the sleeve (2), and the inner edge of the end cover (6) is attached to the guide pipe (1).
2. A cast-in-place pile casting elevation monitoring device according to claim 1, characterized in that the inner edge of the end cap (6) is provided with a rubber sealing coating.
3. A construction method of a cast-in-place pile casting elevation monitoring apparatus according to claim 1 or 2, characterized in that the construction method comprises the steps of:
S10, installing a sleeve and a conduit together, and installing a push plate on the outer wall of the sleeve, so that a parallel plate capacitor is formed between an upper capacitance plate on the outer wall of the conduit and a lower capacitance plate on the inner wall of the sleeve;
S20, connecting the universal meter with reserved wires on the upper capacitor plate and the lower capacitor plate;
S30, connecting the guide pipes installed in the S10 one by one through a plurality of connecting pipes and lowering the guide pipes into pile holes to be poured;
S40, pouring concrete from the connecting pipe, and enabling the concrete to flow to the pile bottom along the inner walls of the connecting pipe and the guide pipe;
S50, when the height of the concrete reaches the position of the push plate, the concrete pushes the outer edge of the push plate to rotate upwards around the joint of the inner edge and the sleeve, so that the sleeve is driven to move upwards, the lower capacitor plate on the inner wall of the sleeve is close to the upper capacitor plate, and the indication of the multimeter is obviously changed;
S60, when the indication of the multimeter is changed, the guide pipe is lifted upwards by the height of one connecting pipe, at the moment, the concrete is separated from the push plate, the push plate and the sleeve are returned to the horizontal state under the action of power, and the sleeve is returned to the original state;
and S70, repeating the steps S40 to S60 until the height of the concrete pouring reaches the preset height.
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