A high-pressure jet grouting pile position auxiliary control device
By using an auxiliary control device combining a laser beam and a rangefinder in high-pressure jet grouting pile construction, the problem of pile position deviation was solved, high-precision pile position control was achieved, and construction quality and efficiency were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CSCEC STRAIT CONSTR & DEV
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-28
AI Technical Summary
In high-pressure jet grouting pile construction, backflow of grout can cause pile position obstruction and deviation, affecting construction quality and progress. Existing equipment verification is time-consuming and requires a large number of personnel and instruments.
An auxiliary control device is adopted, which includes the jet grouting pile machine body, positioning axis, target support, suspended plumb line and laser rangefinder. Through the combination of laser beam and rangefinder, all-round high-precision control of pile position is achieved.
It significantly reduces the risk of pile position deviation, improves construction quality and efficiency, reduces auxiliary operation time, and reduces reliance on the professional skills of operators.
Smart Images
Figure CN224565197U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a high-pressure jet grouting pile position auxiliary control device. Background Technology
[0002] High-pressure jet grouting piles use high-pressure rotating nozzles to inject cement grout into the soil layer and mix it with the soil to form a continuous, overlapping cement-reinforced body. They offer advantages such as small construction footprint, low vibration, and low noise, and are widely used in foundation reinforcement, deep foundation pit water-stop curtains, slope retaining or water-blocking, and foundation pit bottom reinforcement projects.
[0003] When using high-pressure jet grouting piles for large-area full-slab foundation reinforcement, the backflow of grout during construction results in a large amount of grout on the construction site, obscuring the pile positioning points and causing deviations in the pile positions, thus affecting construction quality. Furthermore, due to the rapid construction speed and frequent relocation of the pile driver, using equipment such as total stations for verification requires a large number of surveyors and instruments, which is time-consuming and impacts construction progress. Therefore, exploring a simple and efficient device to assist in controlling the position of high-pressure jet grouting piles will improve construction quality, increase construction efficiency, and greatly facilitate on-site construction. Utility Model Content
[0004] The purpose of this utility model is to provide a high-pressure jet grouting pile position auxiliary control device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure jet grouting pile position auxiliary control device, comprising a jet grouting machine body, a first positioning axis, a second positioning axis, a target support, and a launching support. A first steel plate is fixedly connected to the top of the target support, a positioning target is fixedly connected to the top of the first steel plate, and a first suspended plumb line is fixedly connected to the bottom of the first steel plate. A second steel plate is fixedly connected to the top of the launching support, a second suspended plumb line is fixedly connected to the bottom of the second steel plate, a fixing frame is fixedly connected to the top of the second steel plate, and a fixing member is fixedly connected to the top of the fixing frame. The inner wall of the fixing member is fixed... A laser rangefinder is connected to the steel plate. A placement plate is fixedly connected to the top of the steel plate. A first fixing plate is fixedly connected to the top of the placement plate near the back. A first rubber clamp is fixedly connected to the front of the first fixing plate. A second fixing plate is fixedly connected to the top of the placement plate near the front. A sliding rod is provided on the front of the second fixing plate. Guide rods are symmetrically fixedly connected to the left and right sides of the front of the second fixing plate. A second rubber clamp is fixedly connected to the rear end of the two guide rods. A spring is sleeved between the second fixing plate and the second rubber clamp on the surface of the two guide rods. A limit ring is fixedly connected to the surface of the sliding rod near the front end. A laser rangefinder is provided on the top of the placement plate.
[0006] Preferably, the first and second positioning axes are accurately laid out and positioned using a total station, and are parallel to each other. Both the first and second positioning axes are painted with hot melt paint to prevent them from peeling off.
[0007] Preferably, positioning points are provided at the top of the first positioning axis and the top of the second positioning axis, and the positioning points are the intersections of the first positioning axis and the second positioning axis with the extension lines of each row of horizontal piles, and are marked with nails and hot melt paint of different colors.
[0008] Preferably, the first suspended plumb line corresponds to a positioning point on the first positioning axis, and the second suspended plumb line corresponds to a positioning point on the second positioning axis. The positioning target is made by attaching a black plastic sheet to a prism, which facilitates laser irradiation display.
[0009] Preferably, the second fixing plate has a hole on its front side that matches the slide rod and the guide rod, and the surfaces of the slide rod and the guide rod pass through and slide back and forth in the hole, and the first fixing plate and the second fixing plate are symmetrically distributed.
[0010] Preferably, one end of the spring is fixedly connected to the back of the second fixing plate, and the other end of the spring is fixedly connected to the front of the second rubber clamp. The limiting ring limits the sliding rod and the guide rod so that the sliding rod and the guide rod will not slide out of the hole.
[0011] Compared with the prior art, this utility model provides a high-pressure jet grouting pile position auxiliary control device, which has the following beneficial effects: This high-pressure jet grouting pile position auxiliary control device provides a precise benchmark for pile position control through accurate layout and positioning of the first and second positioning axes, along with the corresponding setting of the first and second suspended plumb lines and positioning points. When the laser beam emitted by the laser ray instrument is aligned with the center of the positioning target, it is on the same axis as the drill rod of the jet grouting machine. During construction and relocation, the laser beam serves as an auxiliary control line, effectively controlling the forward and backward deviation of the pile position. Simultaneously, the laser rangefinder can accurately measure and control the left and right deviation of the pile position. This combination of laser beam and laser rangefinder achieves comprehensive and high-precision control of the pile position, significantly reducing the risk of pile position deviation and ensuring the construction quality of the jet grouting pile.
[0012] This high-pressure jet grouting pile position auxiliary control device uses a positioning target made of a prism with a black plastic sheet attached to it, which facilitates laser illumination and display, and enables rapid laser alignment. The laser rangefinder is securely and conveniently fixed through a structure consisting of a first rubber clamp and a second rubber clamp. The spring design makes the clamping operation of laser rangefinders of different specifications more flexible and labor-saving. During construction, workers can quickly complete the installation and calibration of the device without complicated debugging steps, reducing auxiliary operation time, improving construction efficiency, and especially reducing the reliance on the professional skills of operators, making it easy for on-site construction personnel to get started quickly. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional schematic diagram of the structural target support and positioning target of this utility model; Figure 3 This is a three-dimensional schematic diagram of the launching bracket and the second suspension plumb line of the present invention; Figure 4 This is a three-dimensional schematic diagram of the structural placement plate and laser rangefinder of this utility model.
[0014] In the diagram: 1. Jet grouting machine body; 2. First positioning axis; 3. Second positioning axis; 4. Target bracket; 41. First steel plate; 42. Positioning target; 43. First suspension plumb line; 5. Launching bracket; 51. Second steel plate; 52. Second suspension plumb line; 53. Fixing frame; 54. Fixing component; 55. Laser beam meter; 56. Placement plate; 57. First fixing plate; 58. First rubber clamp; 59. Second fixing plate; 511. Sliding rod; 512. Guide rod; 513. Second rubber clamp; 514. Spring; 515. Limiting ring; 517. Laser rangefinder. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0017] This utility model provides the following technical solution: Example 1
[0018] Please see Figure 1-4 This utility model provides a technical solution: a high-pressure jet grouting pile position auxiliary control device, including a jet grouting machine body 1, a first positioning axis 2, a second positioning axis 3, a target support 4, and a launching support 5. A first steel plate 41 is fixedly connected to the top of the target support 4, a positioning target 42 is fixedly connected to the top of the first steel plate 41, and a first suspension plumb line 43 is fixedly connected to the bottom of the first steel plate 41. A second steel plate 51 is fixedly connected to the top of the launching support 5, a second suspension plumb line 52 is fixedly connected to the bottom of the second steel plate 51, a fixing frame 53 is fixedly connected to the top of the second steel plate 51, a fixing element 54 is fixedly connected to the top of the fixing frame 53, and a laser beam meter 55 is fixedly connected to the inner wall of the fixing element 54. A placement plate 56 is fixedly connected to the top of the plate. A first fixing plate 57 is fixedly connected to the top of the placement plate 56 near the back. A first rubber clamp 58 is fixedly connected to the front of the first fixing plate 57. A second fixing plate 59 is fixedly connected to the top of the placement plate 56 near the front. A sliding rod 511 is provided on the front of the second fixing plate 59. Guide rods 512 are symmetrically fixedly connected to the left and right sides of the front of the second fixing plate 59. A second rubber clamp 513 is fixedly connected to the rear end of the two guide rods 512. A spring 514 is sleeved between the surface of the two guide rods 512 and the second rubber clamp 513. A limit ring 515 is fixedly connected to the surface of the sliding rod 511 near the front end. A laser rangefinder 517 is provided on the top of the placement plate 56.
[0019] The first positioning axis 2 and the second positioning axis 3 are accurately laid out and positioned using a total station, and are parallel. Both the first positioning axis 2 and the second positioning axis 3 are painted with hot melt paint to prevent them from peeling off.
[0020] Positioning points are provided at the top of the first positioning axis 2 and the top of the second positioning axis 3. The positioning points are the intersections of the first positioning axis 2 and the second positioning axis 3 with the extension lines of each row of horizontal piles, and are marked with nails and hot melt paint of different colors.
[0021] The first suspended plumb line 43 corresponds to the positioning point on the first positioning axis 2, and the second suspended plumb line 52 corresponds to the positioning point on the second positioning axis 3. The positioning target 42 is made by attaching a black plastic sheet to a prism, which facilitates laser irradiation display.
[0022] The second fixing plate 59 has holes on its front side that match the slide rod 511 and the guide rod 512. The surfaces of the slide rod 511 and the guide rod 512 pass through and slide back and forth in the holes. The first fixing plate 57 and the second fixing plate 59 are symmetrically distributed.
[0023] One end of the spring 514 is fixedly connected to the back of the second fixing plate 59, and the other end of the spring 514 is fixedly connected to the front of the second rubber clamp 513. The limiting ring 515 limits the slide rod 511 and the guide rod 512 so that the slide rod 511 and the guide rod 512 will not slide out of the hole.
[0024] Turn on the laser emitter and align it with the center of the positioning target 42. At this point, the laser beam and the drill rod of the jet grouting machine body 1 are on the same axis. During jet grouting construction and relocation of the jet grouting machine body 1, the laser beam is used as an auxiliary control line to keep the laser beam illuminating the drill rod of the jet grouting machine body 1, which can effectively control the front-to-back deviation of the pile position. At the same time, the laser rangefinder 517 is used to measure the distance and control the left-to-right deviation of the pile position. The combination of the laser beam and the laser rangefinder 517 can effectively and accurately control the pile position. In actual operation, when this device is used, a total station is used to accurately lay out and position the first positioning axis 2 and the second positioning axis 3 to ensure that the two axes are parallel. Hot melt paint is used to prevent the paint from falling off, providing a stable longitudinal reference for subsequent pile position control. At the same time, positioning points are marked on the first positioning axis 2 and the second positioning axis 3, that is, the intersections of the first positioning axis 2 and the second positioning axis 3 with the extension lines of each row of transverse piles. Nails are used in combination with hot melt paint of different colors as markers to clarify the transverse reference position of each row of piles, forming a three-dimensional positioning grid. The target support 4 is precisely aligned with the positioning point on the first positioning axis 2 by the first suspended plumb line 43 at the bottom, so that the positioning target 42 on the first steel plate 41 at the top is on the preset longitudinal reference line. The launching support 5 is aligned with the positioning point on the second positioning axis 3 by the second suspended plumb line 52, ensuring that the second steel plate 51 and the device above it are aligned with the transverse reference. This plumb line suspension method Unaffected by ground flatness, the physical alignment of the support and the positioning benchmark can be quickly achieved. After the laser beam instrument 55, fixed on the mounting bracket 53 of the launching bracket 5, is started, its emission direction is adjusted so that the laser beam is accurately aligned with the center of the positioning target 42 on the target bracket 4. At this time, the laser beam and the drill rod of the jet grouting machine body 1 are on the same axis, forming a longitudinal control line. During construction or pile machine relocation, by keeping the laser beam always irradiating the drill rod, the front and rear deviations of the pile position can be monitored and corrected in real time. The laser rangefinder 517 on the placement plate 56 is firmly clamped by the first rubber clamp 58 and the second rubber clamp 513. The elastic tension of the spring 514 is used to adapt to instruments of different specifications. The sliding structure of the slide rod 511 and the guide rod 512 facilitates quick loading and unloading. Its measurement direction is consistent with the transverse pile line. By measuring the horizontal distance between the drill rod of the jet grouting machine body 1 and the benchmark line in real time, the left and right deviations of the pile position can be accurately controlled, which complements the longitudinal control of the laser beam.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A high-pressure jet grouting pile position auxiliary control device, comprising a jet grouting machine body (1), a first positioning axis (2), a second positioning axis (3), a target support (4), and a launching support (5), characterized in that: The target bracket (4) is fixedly connected to the top of a first steel plate (41), and a positioning target (42) is fixedly connected to the top of the first steel plate (41). A first suspension plumb line (43) is fixedly connected to the bottom of the first steel plate (41). The launch bracket (5) is fixedly connected to the top of a second steel plate (51), and a second suspension plumb line (52) is fixedly connected to the bottom of the second steel plate (51). A fixing frame (53) is fixedly connected to the top of the second steel plate (51). A fixing member (54) is fixedly connected to the top of the fixing frame (53). A laser beam instrument (55) is fixedly connected to the inner wall of the fixing member (54). A placement plate (56) is fixedly connected to the top of the steel plate. A first fixing device is fixedly connected to the top of the placement plate (56) near the back. The first fixing plate (57) is fixedly connected to the front of the first fixing plate (57) with a first rubber clamp (58). The second fixing plate (59) is fixedly connected to the top of the placement plate (56) near the front. The second fixing plate (59) is provided with a sliding rod (511) on the front. The second fixing plate (59) is symmetrically fixedly connected to the left and right sides of the front. The rear ends of the two guide rods (512) are fixedly connected to the second rubber clamp (513). The surfaces of the two guide rods (512) are sleeved between the second fixing plate (59) and the second rubber clamp (513). The surface of the sliding rod (511) is fixedly connected to the front end with a limit ring (515). The top of the placement plate (56) is provided with a laser rangefinder (517).
2. The high-pressure jet grouting pile position auxiliary control device according to claim 1, characterized in that: The first positioning axis (2) and the second positioning axis (3) are precisely laid out and positioned by a total station and are parallel. The first positioning axis (2) and the second positioning axis (3) are painted with hot melt paint.
3. The high-pressure jet grouting pile position auxiliary control device according to claim 1, characterized in that: The top of the first positioning axis (2) and the top of the second positioning axis (3) are both provided with positioning points, and the positioning points are the intersections of the first positioning axis (2) and the second positioning axis (3) with the extension lines of each row of horizontal piles.
4. The high-pressure jet grouting pile position auxiliary control device according to claim 1, characterized in that: The first suspended plumb line (43) corresponds to the positioning point on the first positioning axis (2), and the second suspended plumb line (52) corresponds to the positioning point on the second positioning axis (3). The positioning target (42) is made by pasting a black plastic sheet onto a prism.
5. The high-pressure jet grouting pile position auxiliary control device according to claim 1, characterized in that: The second fixing plate (59) has holes on its front side that match the slide rod (511) and the guide rod (512), and the surfaces of the slide rod (511) and the guide rod (512) are connected to each other through the holes and slide back and forth. The first fixing plate (57) and the second fixing plate (59) are symmetrically distributed.
6. The high-pressure jet grouting pile position auxiliary control device according to claim 1, characterized in that: One end of the spring (514) is fixedly connected to the back of the second fixing plate (59), and the other end of the spring (514) is fixedly connected to the front of the second rubber clamp (513).