Wall tie device and pull-out resistant construction method

Abstract

The present application relates to the technical field of outdoor wall connecting piece, and particularly discloses a wall connecting piece device and a pulling-resistant construction method, which comprises a pipe body, a forwardly inclined guide hole is arranged on the front part of the pipe body, a puncture plate is movably arranged in the guide hole, and the pulling-resistant construction method comprises the following steps: S1, pressing the pipe body into the soil; S2, pushing the puncture plate to partially penetrate out of the guide hole; S3, continuously pressing the pipe body into the soil to form a soil cavity; S4, taking out the pressing rod; S5, high-pressure pouring of a solidifiable slurry into the pipe body to fill the soil cavity and the inner cavity of the pipe body with the solidifiable slurry; S6, solidification of the poured slurry; and S7, using the pipe body as a pulling rod to perform conventional engineering operation. The present application has the advantages of significantly improving the pulling-resistant capability of the wall connecting piece in slope protection engineering, the firmness and stability of the wall connecting piece long-term buried in the soil, and the engineering life and construction safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of outdoor wall connecting piece, in particular to a wall connecting piece device and a tensile construction method. BACKGROUND

[0002] The wall connecting piece generally refers to a component for strengthening the stability of other structures by connecting with a reliable fixed end, which is mainly applied to highway maintenance in outdoor, such as applied to high and steep slope steel mesh concrete spraying support engineering or used for erecting scaffolding in high and steep slope protection engineering construction to ensure the quality of the scaffolding erection and ensure the construction safety. The current wall connecting piece structure at least includes a tension bar, a brace and a fastener, the tension bar is inserted into the soil layer to play the role of a tension rod; and the most collapsible slope is loose sand, gravel, red soil and the like, and in the related engineering operation, the traditional wall connecting piece can only improve the tensile capacity by lengthening the wall connecting piece, and for the southern region with much rain, with the erosion of rain, even if the wall connecting piece is as long as possible, the tensile capacity is prone to decrease and cannot effectively and continuously provide the tensile effect required by the original design, and then even if the initial material is good, many slope engineering in the south will also appear the situation of re-collapsing after several rainy days. SUMMARY

[0003] In view of the above problems, the present application provides a wall connecting piece device and a tensile construction method with strong tensile capacity and good use effect.

[0004] To achieve the above purpose, the present application adopts the following technical scheme:

[0005] A wall connecting piece device, comprising a pipe body, a forwardly inclined guide hole is arranged at the front part of the pipe body; a puncture plate is movably arranged in the guide hole.

[0006] Preferably, a filling body is arranged at the front part of the inner cavity of the pipe body, the filling body is arranged along the axial direction of the pipe body; the inner side of the guide hole is arranged on the filling body.

[0007] Preferably, a fluid outlet is further arranged at the front part of the pipe body, the fluid outlet is correspondingly arranged at the rear side of the guide hole.

[0008] Preferably, a male thread is arranged at the front part of the pipe body, the male thread is arranged at the rear of the guide hole; a limiting bolt is movably arranged at the male thread.

[0009] Preferably, a conical head is further arranged at the front end of the pipe body, a plurality of grooves are arranged on the surface of the conical head. Preferably, the wall connecting piece device further comprises a grouting connecting device, the grouting connecting device comprises a hydraulic sealing joint and a pressure-resistant sealing connecting assembly arranged at the rear side of the pipe body, the pressure-resistant sealing connecting assembly comprises a plurality of concave rings and supporting rings arranged on the outer wall of the pipe body.

[0010] Preferably, the hydraulic sealing joint comprises a connecting sleeve, which is provided with a sleeve inner cavity, and is provided with an oil cavity, which is separated from the sleeve inner cavity by a pressure-resistant film; the oil cavity is connected with the hydraulic system through a connecting head.

[0011] Preferably, the front part of the connecting sleeve is further provided with a connecting disc, which is provided with a movable connecting long hole, and is movably provided with a tension hook on the movable connecting long hole; the connecting disc is further provided with a screw hole-screw rod assembly or is provided with an elastic ejector rod on the front side.

[0012] A pulling-resistant construction method using the wall connecting device as described above.

[0013] Preferably, a pulling-resistant construction method comprises the following steps:

[0014] S1: press the pipe body into the soil, and unscrew and remove the limiting bolt in the pipe body after the pipe body is pressed into more than half;

[0015] S2: insert a pressing rod into the pipe body and push the puncture plate to partially penetrate out of the guide hole; S3: combine the use of the pressing rod to continuously press the pipe body into the soil until the pipe body is pressed into place, so as to form a soil layer cavity in the soil by the displacement of the puncture plate;

[0016] S4: remove the pressing rod;

[0017] S5: connect the rear end of the pipe body with a high-pressure grouting delivery pipe, high-pressure inject a solidifiable slurry into the pipe body, so as to fill the soil layer cavity and the inner cavity of the pipe body with the solidifiable slurry;

[0018] S6: plug the rear end of the pipe body, and wait for the injected slurry to solidify;

[0019] S7: use the pipe body as a pulling rod to perform conventional engineering operation.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1. The wall connecting device is especially suitable for loose soil operation, through the setting of the movable piercing plate, firstly in the pipe body insertion operation, the piercing plate is preset in the pipe body, which will not hinder the insertion process and prevent the pipe body from widening the aperture when inserted into the soil, ensuring the tensile effect of the pipe body; then by pushing the piercing plate out and pushing the pipe body and the piercing plate together into the deep soil, the deepest loose soil is extruded by the piercing plate during the pushing operation, thereby extruding the conical head, improving the tensile capacity of the device; during the pushing operation, a soil cavity is formed behind the piercing plate; then by high-pressure pouring of the solidifiable slurry into the pipe body, the soil cavity and the inner cavity of the pipe body are filled with the solidifiable slurry, and after solidification, the solidifiable slurry in the soil cavity and the inner cavity of the pipe body is integrated, significantly improving the pullout resistance of the wall connecting body buried in loose soil.

[0022] 2. According to the pullout-resistant construction method of the present application, the wall connecting device inserted into the soil layer can be compacted at its root (conical head), improving the pullout resistance of the wall connecting device; at the same time, the poured solidifiable slurry (such as cement slurry) can form a solidified block outside the deep part of the pipe body (solidified block at the soil cavity), that is, by compacting the root of the wall connecting device and forming an extended solidified block outside the pipe body (and the extended solidified block is integrated with the solidified part inside the pipe body), the pullout resistance of the wall connecting device is finally significantly improved, ensuring long-term firmness, which can be applied to loose soil slope engineering protection engineering and scaffold erection, improving the erection quality of the scaffold and ensuring construction safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description.

[0024] Figure 1 is a sectional view of the wall connecting device of the present application;

[0025] Figure 2 is a structural schematic diagram of the second specific embodiment of the conical head of the wall connecting device of the present application;

[0026] Figure 3 is a schematic diagram of the wall connecting device after the piercing plate is pushed out and moves to the deep part of the soil layer;

[0027] Figure 4 is a structural schematic diagram of the pipe body after pouring the solidifiable slurry of the present application;

[0028] Figure 5 is a rear view of the hydraulic sealing joint of the present application;

[0029] Figure 6is a sectional view of the hydraulic sealing joint of the present application connecting with the pipe body;

[0030] Figure 7 is a top view of the puncture plate of the present application. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative work are within the protection scope of the present application.

[0032] In the description of the present application, it should be noted that the terms "inner", "front", "back", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] As Figures 1-7As shown, a wall connecting piece device includes a pipe body 1, the front of the pipe body 1 is provided with a forwardly inclined guide hole 9; a puncture plate 6 is movably arranged in the guide hole 9; in the embodiment, the guide hole 9 is provided with two, and the corresponding puncture plate 6 is also provided with two, the inclination of the guide hole 9 is an acute angle, mainly to ensure that the puncture plate 6 and the front side of the pipe body 1 form an acute angle, the larger the angle, the wider the angle of the solidified block formed at the soil cavity 16 after grouting in the later period, that is, the larger the angle of the solidified block extending outward relative to the pipe body 1, and the larger the resistance to the outward axial tension when bearing the outward axial tension, but the resistance during the pushing process of the puncture plate 6 out of the pipe body 1 and the pipe body 1 continuing to move forward and the firmness of the solidified block extending outward combined with the solidified part in the pipe body also need to be considered, so in the embodiment, the angle can be preferably about 10-15 degrees. Then in preparation, the pipe body 1 can be preferably made of iron material to reduce cost, and the puncture plate 6 is preferably made of steel or alloy material to ensure its rigidity, and at the same time, the puncture plate 6 is provided with a sharp end 6-1 to improve the puncture effect, and in the embodiment, the puncture plate 6 can be slightly arc-shaped corresponding to the arc surface of the pipe body 1, such as the plate body width of the puncture plate 6 can be about 10mm, and the thickness can be about 2-5mm. The guide hole 9 also adopts a slightly arc-shaped inclined hole corresponding to the puncture plate 6, which is beneficial to improve the stability of the pushing process of the puncture plate 6. Figure 7 As shown, the puncture plate 6 is provided with a sharp end 6-1 to improve the puncture effect, and in the embodiment, the puncture plate 6 can be slightly arc-shaped corresponding to the arc surface of the pipe body 1, such as the plate body width of the puncture plate 6 can be about 10mm, and the thickness can be about 2-5mm. The guide hole 9 also adopts a slightly arc-shaped inclined hole corresponding to the puncture plate 6, which is beneficial to improve the stability of the pushing process of the puncture plate 6.

[0035] Preferably, the front of the inner cavity 2 of the pipe body 1 is provided with a filling body 8-1, the filling body 8-1 is arranged along the axial direction of the pipe body 1; the inner side of the guide hole 9 is arranged on the filling body 8-1. The purpose of arranging the filling body 8-1 is: 1. The guide hole 9 is an inclined hole, which can prolong the length of the guide hole 9, and play a better guiding role and provide better support for the puncture plate 6. 2. Because the pipe body 1 is provided with the guide hole 9, the filling body 8-1 is beneficial to improve the rigidity of the region. In preparation, it can be integrally formed with the pipe body 1.

[0036] Preferably, the front of the pipe body 2 is also provided with a fluid outlet, the fluid outlet is correspondingly arranged on the rear side of the guide hole 9. In the embodiment, a first fluid outlet 5 and a second fluid outlet 10 are arranged, and the arrangement positions of the first fluid outlet 5 and the second fluid outlet 10 are as follows: after the puncture plate 6 is pushed out and the pipe body 1 continues to move forward, a soil cavity 16 is formed behind the puncture plate, and the positions of the first fluid outlet 5 and the second fluid outlet 10 fall in the soil cavity 16, so that when grouting, the solidifiable slurry can smoothly flow into the soil cavity 16 through the first fluid outlet 5 and the second fluid outlet 10.

[0037] Preferably, the front part of the inner cavity 2 of the pipe body 1 is provided with a male thread 11, which is arranged behind the guide hole 9; a limiting bolt 4 is movably arranged at the male thread 11. The arrangement has the effect of preventing the puncture plate 6 from moving backward and out of the guide hole 9 due to the soil pressure during the process of pressing the pipe body 1 into the soil, that is, the puncture plate 6 is supported; when it is necessary to push the puncture plate 6 out of the guide hole 9, the limiting bolt 4 can be removed, and the pressing rod 15 is used for insertion and pushing operation. In the embodiment, the rear side of the limiting bolt 4 is provided with an internal hexagonal socket 3, which is convenient for being rotated out by using a related tool at a later stage.

[0038] Preferably, the front end of the pipe body 1 is further provided with a tapered head 8, and the surface of the tapered head 8 is provided with a plurality of grooves. Figure 1 For example, the annular groove 7 is shown, and the straight groove 14 shown in Figure 2 The purpose of the arrangement is that, after the puncture plate 6 is pushed out and the pipe body 1 is further pushed forward to the position, the soil in front of the puncture plate 6 is compacted forward by the puncture plate 6, and then the compacted soil in front of the tapered head 8 is compacted, and the soil is pressed into the grooves of the tapered head 8, thereby improving the later anti-pulling ability of the wall connecting piece.

[0039] When grouting is needed at a later stage, the related components of the existing high-pressure grouting machine can be used to connect and seal the pipe body 1, and then the grouting operation is performed. However, in order to improve the work efficiency, for example, in actual use, a slope may need to insert dozens or even hundreds of pipe bodies 1, and the traditional grouting connector commonly used is a gasket threaded joint, that is, in the embodiment, a thread is arranged at the rear end of the pipe body 1, and then a threaded joint and a gasket are used to connect the high-pressure grouting delivery pipe, and the tightening torque needs to meet the standard, otherwise the high-pressure grouting process may leak, and then the tightening operation needs to be performed one by one, which is troublesome.

[0040] Therefore, the application provides a convenient grouting connecting device, which comprises a hydraulic sealing joint and a pressure-resistant sealing connecting assembly arranged at the rear side of the pipe body, and the pressure-resistant sealing connecting assembly comprises a plurality of recessed rings 13 and supporting rings 12 arranged on the outer wall of the pipe body.

[0041] Preferably, as Figures 5-6As shown, the hydraulic sealing joint comprises a connecting sleeve 21 provided with a sleeve inner cavity, the connecting sleeve 21 is provided with an oil cavity 23, the oil cavity 23 is separated from the sleeve inner cavity by a circle of pressure-resistant film 29; the oil cavity 23 is connected with the hydraulic system through a connecting head 22. Preferably, the front part of the connecting sleeve is further provided with a connecting disc 28, the connecting disc 28 is provided with a movable connecting long hole 25, the movable connecting long hole 25 is movably provided with a tension hook 27, the tension hook 27 in the embodiment comprises a front hook block 26 and a rear stop block 24; the hook block 26 is arranged according to the radial direction; the stop block 24 is arranged according to the short edge direction of the movable connecting long hole 25; the connecting disc 28 is further provided with a screw hole-screw rod assembly, that is, comprising a screw hole 30, and then using a screw rod 31 to top the support ring 12. Its principle and function are: inserting the pipe body 1 into the inner cavity of the connecting sleeve 21, then hooking the hook block 26 to the support ring 12 of the pipe body 1, rotating the screw rod 31 to top the support ring 12, and promoting the tension hook 27 to be tensioned (the purpose is to prevent the subsequent grouting process, and the internal pressure of the high-pressure slurry causes the axial displacement of the connecting sleeve 21 relative to the pipe body 1); then the hydraulic system is started, and the pressure-resistant film 29 inside the oil cavity 23 is tightly pressed on the several concave rings 13 on the pipe body 1, realizing high-pressure sealing; in the above operation, the rotation of the screw rod 31 is only to realize the tensioning of the tension hook 27, which is different from the sealing tightening of the conventional joint, so when using the present application to operate, the screw rod 31 can be operated by using a general electric bolt tightening tool, which is convenient and efficient, and the sealing of the pipe body 1 and the connecting sleeve 21 relies entirely on the hydraulic system, which is efficient, labor-saving and has good use effect. Then in some embodiments, an elastic top rod can be used on the front side of the connecting disc 28 to replace the screw hole-screw rod assembly, that is, a common spring plunger structure composed of a spring and a telescopic rod, which mainly functions to prevent the connecting sleeve 21 from moving backward in the axial direction relative to the pipe body 1 before using the hydraulic system for high-pressure sealing, that is, to ensure that the tension hook 27 is in a tensioned state.

[0042] A pull-out resistant construction method using the wall connecting device as described above.

[0043] Preferably, a pull-out resistant construction method comprises the following steps:

[0044] S1: press the pipe body 1 into the slope soil, the pressing method can be according to the existing operation, such as knocking in or hydraulic pressure pressing in, etc., after the pipe body 1 is pressed in more than half, the limiting bolt 4 in the pipe body 1 is unscrewed and taken out;

[0045] S2: insert a pressing rod 15 into the pipe body 1 and push the puncture plate 6 out of the guide hole part;

[0046] S3: the pressure rod 15 is used to press the pipe body 1 into the soil, in practice, it can be operated by means of a hydraulic pressure rod until it is pressed into place, which promotes the formation of a soil cavity 16 in the soil due to the displacement of the piercing plate 6; at this time, as shown in Figure 4 , due to the extrusion of the piercing plate 6, the soil in front of the piercing plate 6 forms a relatively loose soil layer 18, which is denser than the high-pressure soil layer area (C area), and the C area soil layer is beneficial to improve the firmness of the conical head 8 and the soil and improve the anti-pulling ability.

[0047] S4: the pressure rod 15 is removed;

[0048] S5: the rear end of the pipe body 1 is connected to a high-pressure grouting delivery pipe, and a solidifiable slurry such as cement slurry is high-pressure injected into the pipe body 1, which promotes the soil cavity 16 and the inner cavity 2 of the pipe body 1 to be filled with the solidifiable slurry;

[0049] S6: after the grouting is completed, the rear end of the pipe body 1 is plugged to prevent the slurry from flowing out, and the injected slurry is solidified; finally, the outer extension solidification block 20 and the pipe body inner cavity solidification block 17 are formed as shown in Figure 4 , at the same time, the pipe body inner cavity solidification block 17 is connected to the outer extension solidification block 20 through the connecting solidification section 19 to form an integrated body, which significantly improves the anti-outside pulling ability of the pipe body 1 and improves the firmness and stability of the pipe body 1 buried in the surrounding soil for a long time;

[0050] S7: the pipe body 1 is used as a pull rod to perform conventional engineering operation, such as building support engineering or erecting scaffolding, etc.

Claims

1. A wall-connecting device, characterized in that: Includes a tube body, the front of which is provided with a forward-inclined guide hole; a puncture plate is movably disposed within the guide hole; The front part of the tube body is also provided with a fluid outlet, which is located on the rear side of the guide hole. After the puncture plate is pushed out and the tube body continues to move forward into place, a soil cavity is formed behind the puncture plate. The position of the fluid outlet falls within the soil cavity so that during grouting, the solidifiable grout can flow smoothly into the soil cavity through the fluid outlet. A filler is provided at the front of the inner cavity of the tube, and the filler is arranged along the axial direction of the tube; the inner side of the guide hole is provided on the filler.

2. The wall-connecting device according to claim 1, characterized in that: The inner cavity of the tube body is provided with a convex thread at the front, and the convex thread is located behind the guide hole; a limit bolt is movably provided at the convex thread.

3. A wall-connecting device according to claim 2, characterized in that: The front end of the tube is also provided with a conical head, and the surface of the conical head is provided with several grooves.

4. A wall-connecting device according to claim 3, characterized in that: It also includes a grouting connection device, which includes a hydraulic sealing joint and a pressure-resistant sealing connection assembly disposed on the rear side of the pipe body. The pressure-resistant sealing connection assembly includes several concave rings and support rings disposed on the outer wall of the pipe body.

5. A wall-connecting device according to claim 4, characterized in that: The hydraulic sealing joint includes a connecting sleeve with an inner cavity and an oil chamber. The oil chamber is separated from the inner cavity by a pressure-resistant membrane. The oil chamber is connected to the hydraulic system via a connector.

6. A wall-connecting device according to claim 5, characterized in that: The front part of the connecting sleeve is also provided with a connecting plate, the connecting plate is provided with a movable connecting elongated hole, and a tensioning hook is movably provided on the movable connecting elongated hole; the connecting plate is also provided with a screw hole-screw assembly or an elastic push rod is provided on its front side.

7. A method for preventing pull-out during construction, characterized in that: Use the wall-connecting device as described in any one of claims 2 to 6.

8. The anti-pullout construction method according to claim 7, characterized in that, Includes the following steps: S1: Press the pipe body into the soil. After the pipe body is pressed in more than halfway, loosen the limiting bolt inside the pipe body and remove it. S2: Insert a pressure rod into the tube and push the puncture plate out of the guide hole; S3: By using the pressure bar, the tube body is continuously pressed into the soil until it is fully inserted, causing a soil cavity to be formed by the displacement of the piercing plate. S4: Remove the pressure rod; S5: Connect the rear end of the pipe to a high-pressure grouting delivery pipe, and inject solidifiable grout into the pipe under high pressure to fill the soil cavity and the inner cavity of the pipe with the solidifiable grout. S6: Plug the rear end of the tube body and allow the grout to be injected to solidify; S7: Use the tube as a tie rod to perform routine engineering operations.

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