CN118111391A - Pile foundation verticality detection device and detection method - Google Patents
Pile foundation verticality detection device and detection method Download PDFInfo
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- CN118111391A CN118111391A CN202410248514.2A CN202410248514A CN118111391A CN 118111391 A CN118111391 A CN 118111391A CN 202410248514 A CN202410248514 A CN 202410248514A CN 118111391 A CN118111391 A CN 118111391A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 43
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- 238000005259 measurement Methods 0.000 abstract description 5
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- 238000010276 construction Methods 0.000 description 7
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Abstract
The invention discloses a pile foundation verticality detection device and a pile foundation verticality detection method, belongs to the field of measurement, and aims to improve detection accuracy. Comprises a triangular support frame, a transparent pipeline and a laser ranging transmission device; the transparent pipeline is vertically installed in the triangular support frame along, and the inner wall of transparent pipeline is provided with along its axially extending guide rail, guide rail and laser range finding transmission device looks adaptation, laser range finding transmission device along transparent pipeline axial and guide rail sliding fit. And fixing the transparent pipeline at the center of the pile hole through the triangular support frame, keeping the data acquisition state of the laser ranging transmission device, sliding down to the bottom of the pile foundation at a constant speed along the guide rail of the transparent pipeline, acquiring all data of the pile foundation, and finally carrying out data analysis. After the triangular support frame is installed in the pile hole, the pile foundation verticality detection device can be utilized for multiple detection, and the detection efficiency is improved. The transparent pipeline and the guide rail jointly act, so that the laser ranging transmission device is ensured to move vertically, the measurement error is reduced, and the measurement accuracy is improved.
Description
Technical Field
The invention belongs to the field of measurement, and particularly relates to a pile foundation verticality detection device and a pile foundation verticality detection method.
Background
In the bridge construction process, stability and safety of the lower structure determine stability of a bridge foundation, the key of the lower structure is a pile foundation, and in the pile foundation construction process, pile foundation deviation phenomenon can be generated, and particularly, deviation of an impact pile and a bored pile is prominent. In addition, the pile foundation construction process is influenced by geological conditions, so that the problem of pile foundation deflection is very easy to occur. In order to avoid deflection after pile foundation forming and influence the quality of pile foundations, the perpendicularity of pile holes is often detected when the pile holes are constructed.
At present, the perpendicularity of the pile hole is detected by adopting a plumb bob method, and the bottom and the top of the cross wire matched with the plumb bob in the pile hole are respectively measured twice to judge whether the perpendicularity of the pile hole meets the requirement. This detection mode has the following drawbacks:
Firstly, the pile hole perpendicularity detection needs to be frequently carried out in the pile hole construction process, the pile hole perpendicularity detection needs to be carried out twice, the detection is carried out for many times, the measurement is long in time consumption, and the efficiency is low.
Secondly, the hanging hammer is easy to shake and deflect in the measuring process, so that a measuring result has larger error.
Disclosure of Invention
The invention aims to provide a pile foundation verticality detection device and a pile foundation verticality detection method, which improve detection accuracy.
The technical scheme adopted by the invention is as follows: the pile foundation verticality detection device comprises a triangular support frame, a transparent pipeline and a laser ranging transmission device;
The transparent pipeline is vertically arranged on the triangular support frame, a guide rail extending from the top end to the bottom end along the axial direction of the transparent pipeline is arranged on the inner wall of the transparent pipeline, the guide rail is matched with the laser ranging transmission device, and the laser ranging transmission device is in sliding fit with the guide rail along the axial direction of the transparent pipeline.
Further, the triangular support frame comprises a support ring in the middle and support rods uniformly distributed along the circumferential direction of the support ring; the support rod is a telescopic piece which can be telescopic along the axial direction of the support rod; and the support ring is provided with a fixed caliper for fixing the transparent pipeline.
Further, the supporting rod comprises a receiving rod and a plugging rod along the axial direction; one end of the bearing rod is fixed on the supporting ring, and the other end of the bearing rod is fixed on the supporting ring; one end of the inserting rod is axially inserted into the receiving rod along the supporting rod; and the relative positions of the receiving rod and the inserting rod are locked through the locking mechanism.
Further, a level gauge is installed on the outer wall of the transparent pipeline.
Further, the level is disposed on top of the transparent tube.
A method for detecting the perpendicularity of pile foundations,
Step one, fixing a triangular support frame at the center of a pile hole;
Step two, vertically placing the transparent pipeline into a triangular support frame, and fixing the transparent pipeline with the triangular support frame;
Step three, adjusting the transparent pipeline to enable the transparent pipeline to be vertically placed in the pile hole;
Step four, opening a laser ranging transmission device, keeping a data acquisition state, and enabling the laser ranging transmission device to slide down to the bottom of the pile foundation at a constant speed through a guide rail of a transparent pipeline until all data of the pile foundation are acquired;
And fifthly, carrying out data analysis on the data acquired by the laser ranging transmission device.
In the fifth step, the laser ranging transmission device imports the collected data into a computer to generate an excel form, the data of the uppermost layer are used for calculating data, other data are compared with the data to calculate specific differences, and the verticality of the pore-forming pile foundation is quantitatively analyzed.
In the fifth step, the laser ranging transmission device imports the collected data into a computer, establishes a solid model by using the laser ranging data, and analyzes the perpendicularity of the pile foundation through the model.
The beneficial effects of the invention are as follows: compared with the traditional plumb bob, the method for detecting the perpendicularity of the pile foundation by using the device for detecting the perpendicularity of the pile foundation can be used for detecting for multiple times after the triangular support frame is installed in the pile hole, namely, the device for detecting the perpendicularity of the pile foundation can be used for multiple times by once installation, so that the installation time is saved, and the detection efficiency of the whole period of pile foundation construction is improved. And then, compared with a hanging wire, the transparent pipeline is easy to shake and deflect in the measuring process and acts together with the guide rail, so that the laser ranging transmission device is ensured to move vertically, the measuring error is reduced, and the accuracy of a measuring result is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a top view of the tripod.
In the figure, a triangular support frame 1, a support ring 11, a fixed caliper 12, a support rod 13, a bearing rod 13A, a plugging rod 13B, a transparent pipeline 2, a guide rail 21, a laser ranging transmission device 3, a level gauge 4 and a pile hole 5.
Detailed Description
The invention is further illustrated in the following figures and examples, in which:
In the present invention, the terms "vertical", "top", "bottom", "upper", "lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in fig. 1. It is used solely for the convenience of description and does not infer or suggest that the device or element in question must be oriented, configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
The pile foundation verticality detection device, as shown in figure 1, comprises a triangular support frame 1, a transparent pipeline 2 and a laser ranging transmission device 3; the transparent pipeline 2 is vertically arranged on the triangular support frame 1, a guide rail 21 extending from the top end to the bottom end along the axial direction of the inner wall of the transparent pipeline 2 is arranged on the inner wall of the transparent pipeline 2, the guide rail 21 is matched with the laser ranging transmission device 3, and the laser ranging transmission device 3 is in sliding fit with the guide rail 21 along the axial direction of the transparent pipeline 2.
The invention discloses a pile foundation verticality detection device, wherein a triangular support frame 1 is used for supporting the whole detection device in a pile hole 5. The triangular support frame 1 ensures that the pile foundation verticality detection device is stably installed in the pile hole 5 by utilizing the stability of the triangle.
The transparent pipe 2 requires that the condition inside the pipe be clearly seen outside the pipe. The guide rail 21 of the inner wall of the transparent pipe 2 defines the vertical movement of the laser ranging transmission device 3 in the transparent pipe 2. The laser ranging transmission device can be a chute, the chute is matched with the laser ranging transmission device 3, namely, the laser ranging transmission device 3 is required to be just placed in the chute, and the laser ranging transmission device 3 is limited to move vertically along the chute and not move circumferentially along the transparent pipeline 2. Naturally, the guide rail 21 may also be a bump, but a limit structure such as a groove adapted to the bump is required to be configured on the laser ranging transmission device 3. The laser ranging transmission device 3 is used for transmitting laser to collect the distance from the edge of the pile hole 5, collecting data are laser point clouds, transmitting measured data into the data receiving device, and qualitatively and quantitatively analyzing the perpendicularity change condition of the formed pile foundation sections through difference comparison between the measured data and the distance of the initial point position. The data receiving device may be a computer or the like.
This pile foundation straightness detection device compares with traditional plumb bob, at first, after the triangular support frame 1 is installed in the stake hole 5, can utilize pile foundation straightness detection device to detect many times, and once installation can carry out repetitious usage promptly, has practiced thrift installation time, and pile foundation construction whole periodic detection efficiency obtains improving. Next, compared with a suspension wire, the transparent pipeline 2 is easy to shake and deflect in the measuring process and acts together with the guide rail 21, so that the laser ranging transmission device 3 is ensured to move vertically, measuring errors are reduced, and accuracy of measuring results is improved.
In order to facilitate the installation of the transparent pipe 2, as shown in fig. 2, the delta support frame 1 includes a support ring 11 in the middle and support rods 13 uniformly distributed along the circumferential direction of the support ring 11. For adjusting the tripod 1 to be fixed at the center of pile foundation, it is preferable that the supporting rod 13 is a telescopic member which is telescopic along the axial direction thereof to accommodate pile holes of different sizes. In order to facilitate the fixation of the transparent pipe 2 and the triangular support frame 1, the support ring 11 is distributed with a fixed caliper 12 for fixing the transparent pipe 2. The fixed calipers 12 are uniformly arranged with at least three in the circumferential direction of the support ring 11. The fixed caliper 12 may be a telescopic structure that stretches radially along the support ring 11, such as: the fixed caliper 12 comprises a caliper body mounted to the support ring 11 via a telescopic spring. In a natural state, the caliper body radially extends into the center hole of the support ring 11 along the support ring 11. When the transparent pipe 2 is put down into the central hole of the support ring 11, a small section of the top end of the transparent pipe 2 is exposed. In the lowering process, the outer wall of the transparent pipeline 2 extrudes the caliper body, and the telescopic spring contracts. After the transparent pipeline 2 is placed in place, as the telescopic spring is compressed, the elastic force of the telescopic spring enables the caliper body to tightly press the outer wall of the top end of the transparent pipeline 2, so that the transparent pipeline 2 is fixed. The fixed calipers 12 can also be of a clip structure, and clamp the side wall of the transparent pipeline 2 directly from the top end of the transparent pipeline 2.
The supporting rod 13 may be an air cylinder, etc., and in order to save cost, the supporting rod 13 includes a receiving rod 13A and a plugging rod 13B along the axial direction; one end of the receiving rod 13A is fixed on the supporting ring 11, and the other end of the receiving rod is fixed on the supporting ring; one end of the inserting rod 13B is axially inserted into the receiving rod 13A along the supporting rod 13; and the relative positions of the receiving rod 13A and the inserting rod 13B are locked through the locking mechanism. The locking mechanism can be a nut welded at the other end of the receiving rod 13A, the inserting rod 13B is provided with external threads matched with the nut, and the length of the supporting rod 13 is adjusted through threaded fit. Of course, the receiving rod 13A and the inserting rod 13B may be connected by inserting a positioning pin between the receiving rod 13A and the inserting rod 13B in the radial direction to lock them.
In order to guide the adjustment of the transparent pipe 2 so that the transparent pipe 2 is kept vertical, a level 4 is preferably installed at the outer wall of the transparent pipe 2. The bubble of the level 4 is centered by adjusting the tripod 1 so that the transparent pipe 2 remains upright.
For ease of viewing, the level 4 is placed on top of the transparent tube 2.
The pile foundation verticality detection method adopting the pile foundation verticality detection device is characterized by comprising the following steps of:
Step one, fixing the triangular support frame 1 at the center of the pile hole 5.
And step two, vertically placing the transparent pipeline 2 provided with the laser ranging transmission device 3 into the triangular support frame 1, and fixing the transparent pipeline 2 and the triangular support frame 1. The transparent pipe 2 may be fixed to the tripod 1 with a fixed caliper.
And thirdly, adjusting the transparent pipeline 2 to enable the transparent pipeline 2 to be vertically placed in the pile hole 5. The transparent pipe 2 is kept vertical by adjusting the tripod 1 to center the bubble of the level 4.
And step four, opening the laser ranging transmission device 3, keeping a data acquisition state, and enabling the laser ranging transmission device 3 to slide down to the bottom of the pile foundation at a constant speed along the guide rail 21 of the transparent pipeline 2 until all data of the pile foundation are acquired. The laser ranging transmission device 3 can be hoisted to the transparent pipeline 2 to slide down along the guide rail 21 at a constant speed.
And fifthly, carrying out data analysis on the data acquired by the laser ranging transmission device 3.
Data analysis takes many forms, for example: the laser ranging transmission device 3 imports the acquired data into a computer to generate an excel form, calculates data by using the data of the uppermost layer, compares other data with the data to calculate a specific difference value, and quantitatively analyzes the verticality condition of the pore-forming pile foundation.
For another example: the laser ranging transmission device 3 guides the collected data into a computer, establishes a solid model by utilizing the laser ranging data, and analyzes the perpendicularity condition of the pile foundation through the model.
Compared with a traditional plumb bob, the pile foundation verticality detection method is carried out by utilizing the pile foundation verticality detection device, firstly, after the triangular support frame 1 is installed in the pile hole 5, the pile foundation verticality detection device can be utilized for carrying out multiple detection, namely, the pile foundation verticality detection device can be installed for multiple times, so that the installation time is saved, and the detection efficiency of the whole period of pile foundation construction is improved. Next, compared with a suspension wire, the transparent pipeline 2 is easy to shake and deflect in the measuring process and acts together with the guide rail 21, so that the laser ranging transmission device 3 is ensured to move vertically, measuring errors are reduced, and accuracy of measuring results is improved.
Claims (8)
1. Pile foundation straightness detection device that hangs down, its characterized in that: comprises a triangular support frame (1), a transparent pipeline (2) and a laser ranging transmission device (3);
The utility model discloses a laser range finding transmission device, including transparent pipeline (2), triangular support frame (1) is installed in vertical along to transparent pipeline (2), is provided with at the inner wall of transparent pipeline (2) and extends guide rail (21) of bottom from the top along its axial, guide rail (21) and laser range finding transmission device (3) looks adaptation, laser range finding transmission device (3) along transparent pipeline (2) axial and guide rail (21) sliding fit.
2. The pile foundation verticality detection device of claim 1, wherein: the triangular support frame (1) comprises a support ring (11) at the middle part and support rods (13) uniformly distributed along the circumferential direction of the support ring (11);
The supporting rod (13) is a telescopic piece which can be telescopic along the axial direction of the supporting rod;
And a fixed caliper (12) for fixing the transparent pipeline (2) is distributed on the support ring (11).
3. The pile foundation verticality detection device of claim 2, wherein: the supporting rod (13) comprises a receiving rod (13A) and a plugging rod (13B) along the axial direction; one end of the bearing rod (13A) is fixed on the supporting ring (11), and the other end of the bearing rod is fixed on the supporting ring; one end of the inserting rod (13B) is axially inserted into the bearing rod (13A) along the supporting rod (13); and the relative position of the receiving rod (13A) and the inserting rod (13B) is locked by the locking mechanism.
4. A pile verticality detection device according to claim 1 or 3, wherein: the outer wall of the transparent pipeline (2) is provided with a level meter (4).
5. The pile foundation verticality detection device of claim 4, wherein: the level meter (4) is arranged at the top of the transparent pipeline (2).
6. Pile foundation verticality detection method using the pile foundation verticality detection apparatus according to any one of claims 1 to 5, characterized in that:
Step one, fixing a triangular support frame (1) at the center of a pile hole (5);
step two, vertically placing the transparent pipeline (2) into the triangular support frame (1), and fixing the transparent pipeline (2) and the triangular support frame (1);
Step three, adjusting the transparent pipeline (2) to enable the transparent pipeline (2) to be vertically placed in the pile hole (5);
Step four, opening a laser ranging transmission device (3), keeping a data acquisition state, and enabling the laser ranging transmission device (3) to slide down to the bottom of the pile foundation at a constant speed through a guide rail (21) of the transparent pipeline (2) until all data of the pile foundation are acquired;
and fifthly, carrying out data analysis on the data acquired by the laser ranging transmission device (3).
7. The pile foundation verticality detection method of the pile foundation verticality detection device according to claim 6, wherein: in the fifth step, the laser ranging transmission device (3) imports the collected data into a computer to generate an excel form, the data of the uppermost layer are used for calculating data, other data are compared with the data to calculate specific difference values, and the verticality condition of the pore-forming pile foundation is quantitatively analyzed.
8. The pile foundation verticality detection method of the pile foundation verticality detection device according to claim 6, wherein: in the fifth step, the laser ranging transmission device (3) guides the collected data into a computer, a solid model is built by using the laser ranging data, and the perpendicularity condition of the pile foundation is analyzed through the model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248514.2A CN118111391A (en) | 2024-03-05 | 2024-03-05 | Pile foundation verticality detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410248514.2A CN118111391A (en) | 2024-03-05 | 2024-03-05 | Pile foundation verticality detection device and detection method |
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| Publication Number | Publication Date |
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| CN118111391A true CN118111391A (en) | 2024-05-31 |
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| CN202410248514.2A Pending CN118111391A (en) | 2024-03-05 | 2024-03-05 | Pile foundation verticality detection device and detection method |
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| CN (1) | CN118111391A (en) |
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- 2024-03-05 CN CN202410248514.2A patent/CN118111391A/en active Pending
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