Fabricated grouting anchor cable structure for water-rich sand stratum

Abstract

The utility model discloses an assembly type grouting anchor cable structure for a water-rich sand stratum. The assembly type grouting anchor cable structure comprises a grouting anchor cable mechanism. The grouting anchor cable mechanism comprises a guide conical head, and a plurality of anchor cable steel ropes are fixedly connected to the guide conical head; the grouting anchor cable mechanism further comprises a support binding structure used for supporting an anchor cable steel rope. The support binding structure comprises an annular center frame, a plurality of support bases are installed at the outer end of the annular center frame through an adjusting structure, and the anchor cable steel rope penetrates through the support bases. The adjusting structure comprises a limiting seat fixedly connected to the support seat, the limiting seat is rotationally connected with an adjusting screw rod in a limiting mode, and the adjusting screw rod is in threaded connection to the annular center frame; the grouting anchor cable mechanism further comprises a slurry pumping pipe installed on the guiding conical head in a communicating mode, and the slurry pumping pipe penetrates through the center position of the annular center frame. According to the device, the technical defect that the anchor cable steel rope is difficult to advance due to the fact that the anchor cable steel rope touches and presses the groove wall due to bag beating and bending is overcome.

Description

Technical Field

[0001] This utility model belongs to the field of anchoring technology for water-rich sandy strata, and particularly relates to a prefabricated grouting anchor cable structure for water-rich sandy strata. Background Technology

[0002] Water-rich sandy strata represent a geologically complex structure. Specifically, due to the high content of sand and water, these strata are relatively soft, resulting in insufficient stability and firmness. Consequently, buildings and other structures cannot be directly constructed in water-rich sandy geological conditions.

[0003] Before construction, the water-rich sandy strata need to be reinforced to increase their stability. Anchor cables are a type of steel wire rope anchor cable that is cast into the water-rich sandy strata. Under the structural tension of the anchor cable, the water-rich sandy strata can be integrated, which greatly increases the structural stability of the soft, moist water-rich sandy strata.

[0004] In existing technology, anchor cable construction involves driving the anchor cable into a pre-drilled trench, then injecting concrete grout into the trench, and finally completing the construction once the concrete grout has cured.

[0005] However, in actual work, it was found that due to the low hardness of the anchor cable, it is easy to deform such as bending or buckling when the anchor cable is inserted into a long trench. This makes it difficult for the anchor cable to be inserted in a straight line. Even if it is forced to be inserted, the length of the anchor cable in the trench is not uniform.

[0006] Meanwhile, the lack of proper binding between the anchor cables resulted in a high degree of looseness, further complicating the insertion of the anchor cables into the trench. Moreover, different trench sizes require anchor cables of varying thicknesses, and the difficulty in binding the anchor cables further increases the difficulty and complexity of the operation. Utility Model Content

[0007] Based on the above background, the purpose of this utility model is to provide a prefabricated grouting anchor cable structure for water-rich sandy strata.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A prefabricated grouting anchor cable structure for water-rich sandy strata includes a grouting anchor cable mechanism;

[0010] The grouting anchor cable mechanism includes a guide cone head, on which several anchor cable steel ropes are fixedly connected;

[0011] The grouting anchor cable mechanism also includes a support restraint structure for supporting the anchor cable steel rope;

[0012] The support restraint structure includes an annular central frame, and several support seats are installed at the outer end of the annular central frame through an adjustment structure. The anchor cable passes through the support seats.

[0013] The adjustment structure includes a limiting seat fixedly connected to the support base, the limiting seat being rotatably connected to an adjusting screw, and the adjusting screw being threadedly connected to an annular central frame;

[0014] The grouting anchor cable mechanism also includes a grouting pipe installed and connected to the guide cone, the grouting pipe passing through the center of the annular central frame.

[0015] Preferably, the longitudinal cross-sectional shape of the support base is fan-shaped;

[0016] The support base has a through hole, through which the anchor cable passes.

[0017] Preferably, a rubber gasket is fixedly connected inside the through hole, and the rubber gasket has a through hole for the anchor cable steel rope to pass through.

[0018] Preferably, the guide cone is tapered;

[0019] The guide cone has a pumping chamber inside, and the outer wall of the guide cone has several pumping through holes that connect to the pumping chamber.

[0020] The pump slurry pipe is connected to the pump material chamber.

[0021] Preferably, a connecting rod is fixedly connected to the outer end of the anchor cable.

[0022] Preferably, the prefabricated grouting anchor cable structure for water-rich sandy strata further includes an anchor plate structure fixedly connected between the connecting rods.

[0023] Preferably, the anchor plate structure includes an annular anchor plate, on which a plurality of embedded anchor rods are hinged.

[0024] Preferably, the anchor rod includes a T-shaped rod hinged to an annular anchor plate;

[0025] The annular anchor plate has several hinge interfaces, and the T-shaped rod is hinged to the hinge interfaces;

[0026] The T-shaped rod is slidably connected to an embedded tube;

[0027] The insert has an integrally formed conical tip.

[0028] Preferably, the insert has an integrally formed annular flange.

[0029] This utility model has the following beneficial effects:

[0030] 1. This system enables the binding of loose anchor cables during operation, and allows for tensioning after binding. The increased binding concentration of the anchor cables after tensioning and binding effectively solves the technical problem of anchor cable bending and buckling causing difficulties in trenching. Furthermore, segmented binding significantly improves the stability of anchor cable operation, resolving the issue of anchor cable buckling and bending causing pressure on the trench wall and hindering advancement.

[0031] 2. During construction, after the anchor cable is advanced, the operator flips the T-shaped rod to bring the embedded tube to a vertical position. The operator then embeds the tube into the structural layer for fixation. This method allows for rapid anchoring of the outer end of the anchor cable after it has been pushed in. Furthermore, the use of a sliding connection with the embedded tube allows for adjustment of the anchoring height, facilitating subsequent grouting operations. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the support restraint structure in an embodiment of the present utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the limiting seat connecting the adjusting screw in an embodiment of this utility model;

[0036] Figure 4 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] 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.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0041] Example 1

[0042] like Figure 1-4 As shown, a prefabricated grouting anchor cable structure for water-rich sandy strata includes a grouting anchor cable mechanism. The specific structure of the grouting anchor cable mechanism is as follows:

[0043] The grouting anchor cable mechanism includes a guide cone 1 (the guide cone 1 is conical in shape; a pumping chamber is provided inside the guide cone 1, and several pumping through holes 11 connected to the pumping chamber are provided on the outer side wall of the guide cone 1; the grouting pipe 5 below is connected to the pumping chamber. During operation, the anchor cable is extended into the trench under the guidance of the guide cone 1, and during subsequent concrete injection, concrete slurry is pumped out from the guide cone 1 until the entire trench is filled).

[0044] Several anchor cables 2 are fixedly connected to the aforementioned guide cone 1; at the same time, in order to fully bind the multiple anchor cables 2, the anchor cables 2 are bound and concentrated in a segmented binding manner, and the aforementioned grouting anchor cable mechanism also includes a support binding structure 3 for supporting the anchor cables 2.

[0045] Specifically, the support restraint structure 3 includes an annular central frame 34, and several support seats 31 are installed at the outer end of the annular central frame 34 through an adjustment structure (the support seats 31 are fan-shaped with the arc surface facing outward, which facilitates insertion into the trench and reduces frictional resistance with the structure). The anchor cable 2 passes through the support seat 31.

[0046] Specifically, the longitudinal cross-sectional shape of the support base 31 is fan-shaped; a through hole is provided on the support base 31, and the anchor cable 2 passes through the through hole.

[0047] In actual construction, in order to cope with the installation of anchor cables 2 of different thicknesses, a rubber pad is fixedly connected in the above-mentioned through hole, and the rubber pad has a through hole for the anchor cable 2.

[0048] Different types of rubber gaskets 35 (with different through-hole diameters on different types of rubber gaskets 35) are fixedly connected inside the through hole. Before construction, the rubber gaskets 35 are preheated appropriately and then inserted into the through hole. After the rubber gaskets 35 cool down, they are welded and fixed in the through hole, and then the anchor cable 2 is threaded through.

[0049] The aforementioned adjustment structure includes a limiting seat 32 fixedly connected to the support base 31, and the limiting seat 32 is rotatably connected to an adjusting screw 33, which is threadedly connected to the annular central frame 34.

[0050] Specifically, in accordance with the existing method, a T-shaped limiting groove (not shown in the figure) is opened on the limiting seat, and a T-shaped rotating head (not shown in the figure) is fixedly connected to the adjusting screw 33, and the rotating head is limited to rotate within the limiting groove of the T-shaped structure.

[0051] When the operator turns the adjusting screw 33, the thread tension enables the adjustment of the limit seat. Since the anchor cable 2 is fixed on the limit seat, the anchor cable 2 can be adjusted, such as tension adjustment. Specifically, the adjusting screw 33 is adjusted towards the center of the annular central frame 34, so that the anchor cable 2 is pulled inward to tighten and bind.

[0052] The above method effectively binds the loose anchor cable 2, allowing for tensioning. After tensioning and binding, the binding concentration of the anchor cable 2 increases, effectively solving the technical problem of bending and buckling of the anchor cable 2, which makes operation difficult during trenching. Simultaneously, segmented binding significantly improves the stability of the anchor cable 2 operation, resolving the technical issue of buckling and bending causing it to press against the trench wall and hindering advancement.

[0053] The aforementioned grouting anchor mechanism also includes a grouting pipe 5 installed and connected to the guide cone head 1, the grouting pipe 5 passing through the center of the annular central frame 34. In existing methods, a grouting connector is connected to the outer end of the grouting pipe 5 to pump concrete grout.

[0054] Example 2

[0055] like Figure 1-4 As shown, in this embodiment, based on the structure of embodiment 1, after the anchor cable 2 is advanced, a connecting rod 21 is fixedly connected to the outer end of the anchor cable 2 in order to anchor the entire device.

[0056] Specifically, the prefabricated grouting anchor cable structure for water-rich sandy strata also includes an anchor plate structure fixedly connected between the connecting rods 21. The anchor plate structure includes an annular anchor plate 41, on which several embedded anchor rods are hinged. Each embedded anchor rod includes a T-shaped rod 42 hinged to the annular anchor plate 41; specifically, the annular anchor plate 41 has several hinge interfaces, and the T-shaped rod 42 is hinged to these interfaces; the T-shaped rod 42 is slidably connected to an embedded tube 43; the embedded tube 43 has an integrally formed conical tip. The embedded tube 43 also has an integrally formed annular flange 431.

[0057] During construction, after the anchor cable is advanced, the operator flips the T-shaped rod 42 (the T-shaped part of the T-shaped rod 42 is hinged to the hinge interface, as if hinge grooves are opened on both sides of the hinge interface, and the two ends of the T-shaped part are hinged in the hinge grooves), and flips the embedded tube 43 to a vertical state. At this time, the operator embeds the embedded tube 43 into the structural layer for fixation. The method is that the operator applies a tool to the annular flange 431, and under the impact of the tool, the embedded tube 43 is embedded and anchored into the structural layer to achieve anchoring. This anchoring method not only simplifies the anchoring operation but also allows for rapid anchoring after the anchor cable is advanced.

[0058] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A prefabricated grouting anchor cable structure for water-rich sandy strata, characterized in that, Including grouting anchor cable mechanism; The grouting anchor cable mechanism includes a guide cone head, on which several anchor cable steel ropes are fixedly connected; The grouting anchor cable mechanism also includes a support restraint structure for supporting the anchor cable steel rope; The support restraint structure includes an annular central frame, and several support seats are installed at the outer end of the annular central frame through an adjustment structure. The anchor cable passes through the support seats. The adjustment structure includes a limiting seat fixedly connected to the support base, the limiting seat being rotatably connected to an adjusting screw, and the adjusting screw being threadedly connected to an annular central frame; The grouting anchor cable mechanism also includes a grouting pipe installed and connected to the guide cone, the grouting pipe passing through the center of the annular central frame.

2. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 1, characterized in that, The longitudinal cross-sectional shape of the support base is fan-shaped; The support base has a through hole, through which the anchor cable passes.

3. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 2, characterized in that, A rubber pad is fixedly connected inside the through hole, and the rubber pad has a through hole for the anchor cable steel rope to pass through.

4. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 1, characterized in that, The guide cone is cone-shaped; The guide cone has a pumping chamber inside, and the outer wall of the guide cone has several pumping through holes that connect to the pumping chamber. The pump slurry pipe is connected to the pump material chamber.

5. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 1, characterized in that, The outer end of the anchor cable is fixedly connected to a connecting rod.

6. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 5, characterized in that, The prefabricated grouting anchor cable structure for water-rich sandy strata also includes an anchor plate structure that is fixedly connected between the connecting rods.

7. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 6, characterized in that, The anchor plate structure includes an annular anchor plate, on which several embedded anchor rods are hinged.

8. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 7, characterized in that, The anchor rod includes a T-shaped rod hinged to an annular anchor plate; The annular anchor plate has several hinge interfaces, and the T-shaped rod is hinged to the hinge interfaces; The T-shaped rod is slidably connected to an embedded tube; The insert has an integrally formed conical tip.

9. The prefabricated grouting anchor cable structure for water-rich sandy strata according to claim 8, characterized in that, The insert has an integrally formed annular flange.

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