BIM-based anchor cable dynamic regulation device

Abstract

The application discloses a kind of based on BIM's anchor cable dynamic regulation and control device, comprising: base;Bearing plate, two mounting seats are mirror image equipped on base, two mounting seats are all opened with arc slot, bearing plate is equipped with two connecting plates corresponding to two mounting seats, connecting plate is slidably equipped on corresponding arc slot;Pad, pad is equipped with two mounting plates, bearing plate is equipped with two support plates, two mounting plates are slidably connected between two support plates, pad is further equipped with anchor for installing anchor cable;First lock unit, first lock unit is located in bearing plate and is abutted to mounting seat;Second lock unit, second lock unit is located in mounting plate and is abutted to support plate.This scheme can be flexibly adjusted according to the monitoring data (such as pile body displacement, soil pressure change) fed back by BIM model in construction and later operation and maintenance, so that prestress state is always matched with dynamic change of slope mechanical state, solve the contradiction between static locking and dynamic stratum.

Description

Technical Field

[0001] This invention relates to the field of anchor cable prestress control technology, specifically to a BIM-based dynamic control device for anchor cables. Background Technology

[0002] As a new type of lightweight retaining structure, prestressed anchor pile slab wall has been widely used in slope reinforcement and deep foundation pit support projects for infrastructure construction such as highways, railways, and water conservancy in recent years. This structural system mainly consists of wall piles, retaining slabs, prestressed anchor cables, anchoring structures, and backfill. Its core working principle is to apply a pre-tension force to the anchor cables, thereby actively applying a reverse bending moment and tension force to the pile body, effectively limiting the lateral displacement of the support pile, optimizing the internal force distribution of the pile body, and ultimately achieving the good effect of significantly reducing the cross-sectional size of the pile body, the embedment depth, and the project cost.

[0003] With the deep integration of Building Information Modeling (BIM) technology and intelligent construction concepts in the field of civil engineering, higher controllability requirements have been put forward for the design and construction of retaining structures. Prestressed anchor cable construction is carried out by combining BIM models with the "one-time tensioning and mechanical locking" method. That is, after the anchor cable is tensioned to the design locking value using jacks, it is immediately mechanically locked by clamps or nuts. After that, the prestress of the anchor cable is basically fixed and becomes a static value.

[0004] However, the mechanical parameters and stress state of slope soil will continue to change under the influence of factors such as construction disturbance, groundwater changes, seasonal freeze-thaw cycles, nearby construction loads, and long-term creep. Traditional static locking modes cannot respond to these changes, resulting in a mismatch between prestress and actual earth pressure. This may cause the support structure to deform beyond the limit or the prestressed anchor cable to fail due to excessive stress, posing safety hazards and failing to achieve state-based performance maintenance. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a BIM-based dynamic control device for anchor cables, which solves the problem that prestressed anchor cable construction in existing technologies cannot respond to changes in slope soil.

[0006] According to an embodiment of the present invention, a BIM-based dynamic control device for anchor cables includes:

[0007] Base;

[0008] The support plate and the base are provided with two mounting seats mirrored on each other. Both mounting seats are provided with arc-shaped grooves. The support plate is provided with two connecting plates corresponding to the two mounting seats. The connecting plates are slidably disposed on the corresponding arc-shaped grooves.

[0009] The pad has two mounting plates and a bearing plate with two support plates. The two mounting plates are slidably engaged between the two support plates. The pad also has an anchor for installing anchor cables.

[0010] The first locking unit is disposed on the support plate and abuts against the mounting base, and is used to fix the position of the support plate on the mounting base;

[0011] The second locking unit is located on the mounting plate and abuts against the support plate, and is used to fix the position of the mounting plate on the support plate.

[0012] Preferably, the first locking unit includes:

[0013] The toothed block is slidably mounted on the connecting plate. The mounting base has an arc-shaped surface, and the mounting base has several toothed grooves along the arc-shaped surface. The toothed block is engaged in the corresponding toothed groove.

[0014] Fasteners, located on the support plate, are used to press the toothed blocks into the tooth grooves.

[0015] Preferably, the fastener is an adjusting bolt, the bearing plate is provided with a threaded cylinder, the adjusting bolt is threadedly connected to the threaded cylinder, and the end is rotatably located on the toothed block.

[0016] Preferably, the second locking unit includes an adjusting block, the mounting plate has a mounting groove, the adjusting block is slidably disposed in the mounting groove, the inner side of the support plate has several slots, the adjusting block has a locking block, the locking block passes through the side of the mounting plate and is locked into the corresponding slot.

[0017] Preferably, the mounting groove is provided with a mounting rod, the adjusting block is provided with a mounting cylinder, the mounting cylinder is sleeved on the mounting rod, and the mounting rod is also sleeved with a spring, the spring abutting against the end of the mounting cylinder.

[0018] Preferably, the card block is a right triangle, and the straight side of the right triangle is the base of the card block, and the card slot is adapted to the card block.

[0019] Preferably, the adjusting block has an adjusting portion extending out of the mounting groove.

[0020] Preferably, the support plate has a dovetail groove, and the mounting plate is slidably engaged with the dovetail groove.

[0021] Preferably, the base has several mounting holes.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In this scheme, the position of the bearing plate on the mounting base can be adjusted by setting the first locking unit, thereby changing the inclination angle of the anchor cable and fixing the bearing plate. The linear position of the pad can be adjusted by setting the second locking unit. After the anchor cable is fixed on the pad, the linear position of the pad can be adjusted to adjust the prestress of the anchor cable. This scheme can be flexibly adjusted according to the monitoring data (such as pile displacement and earth pressure changes) fed back by the BIM model during construction and later operation and maintenance, so that the prestress state always matches the dynamically changing slope mechanical state, and solves the contradiction between static locking and dynamic strata. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the control device installed on the pile plate in an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the planar structure of the control device in an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the control device in use in an embodiment of the present invention.

[0027] Figure 4 This is a cross-sectional structural diagram of the support plate in an embodiment of the present invention.

[0028] In the above attached figures:

[0029] 1. Base; 101. Mounting holes;

[0030] 2. Mounting base; 201. Arc-shaped groove; 202. Toothed groove;

[0031] 3. Tooth block; 301. Adjusting bolt;

[0032] 4. Support plate; 401. Slot; 402. Dovetail groove;

[0033] 5. Spacer block; 501. Mounting plate; 502. Mounting slot;

[0034] 6. Adjusting block; 601. Locking block; 602. Mounting cylinder; 603. Mounting rod; 604. Adjusting part;

[0035] 7. Spring;

[0036] 8. Bearing plate; 801. Connecting plate;

[0037] 9. Anchorage. Detailed Implementation

[0038] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] This invention proposes a BIM-based dynamic control device for anchor cables, comprising:

[0040] Base 1;

[0041] The support plate 8 and the base 1 are provided with two mounting seats 2 mirrored on each other. Both mounting seats 2 are provided with arc-shaped grooves 201. The support plate 8 is provided with two connecting plates 801 corresponding to the two mounting seats 2. The connecting plates 801 are slidably disposed on the corresponding arc-shaped grooves 201.

[0042] The pad 5 is provided with two mounting plates 501, the bearing plate 8 is provided with two support plates 4, the two mounting plates 501 are slidably engaged between the two support plates 4, and the pad 5 is also provided with an anchor 9 for installing anchor cables.

[0043] The first locking unit is disposed on the support plate 8 and abuts against the mounting base 2, and is used to fix the position of the support plate 8 on the mounting base 2;

[0044] The second locking unit is located on the mounting plate 501 and abuts against the support plate 4, and is used to fix the position of the mounting plate 501 on the support plate 4.

[0045] In this embodiment, as Figure 1 and Figure 3 As shown, the base 1 serves as the installation foundation and is fixed to the predetermined position on the pile during use. Two mounting seats 2 on the base 1 are mirror images of each other and each has an arc-shaped groove 201. The centers of the two arc-shaped grooves 201 coincide, thus defining a virtual axis of rotation. When the connecting plate 801 is embedded in the corresponding arc-shaped groove 201, the connecting plate 801 and the bearing plate 8 can slide along the trajectory of the arc-shaped groove 201, allowing the bearing plate 8 to adjust its pitch angle relative to the base 1. When the sliding bearing plate 8 is adjusted to the specified anchoring angle, it can be fixed in that position with the cooperation of the first locking unit. The first locking unit can be a bolt or a telescopic cylinder structure, so that the force it generates directly abuts against the mounting seat 2, preventing it from rotating under the tension of the anchor cable.

[0046] During anchor cable installation, the anchor is inserted into the pad 5, allowing the anchor cable to pass through the anchor 9 of the pad 5. One end of the anchor cable is fixed to the pad 5 by the anchor 9. The fixing method includes, but is not limited to, welding, which is existing technology. When applying prestress, the jack is placed on the bearing plate 8, with the telescopic end of the jack at the bottom of the pad 5. Pressure sensors or other pressure detection elements can be installed on the telescopic end of the jack. By activating the jack, its telescopic end extends, moving the pad 5 away from the bearing plate 8. The prestress of the anchor cable is controlled by linearly adjusting the pad 5. After adjustment, with the cooperation of the second locking unit, the mounting plate 501 is locked to the support plate 4 to prevent it from sliding under the prestress of the anchor cable.

[0047] Based on the application of BIM, a model of the pile-slab wall retaining structure can be simulated during construction, and the pile-slab wall can be monitored at any time. According to the BIM model analysis and the pile displacement and earth pressure data fed back from the on-site monitoring, if it is necessary to adjust the anchor cable inclination angle to optimize the force direction, the first locking unit can be released, the sliding connecting plate 801 changes the angle of the bearing plate 8, and then it is relocked; if it is necessary to fine-tune the prestress (by changing the effective length of the anchor cable or the tensioning space), the second locking unit can be released, the sliding pad 5 changes its position, thereby applying an additional displacement to the anchor cable to achieve stress compensation, and then it is relocked. Preferably, a force measuring unit can also be installed between the anchor 9 and the pad 5 to detect changes in the prestress of the anchor cable.

[0048] This solution has dual adjustment capabilities, enabling proactive and flexible readjustment of the spatial orientation and prestress level of the anchor cable according to the actual engineering conditions during the construction or operation and maintenance phases. It effectively resolves the contradiction between the traditional "one-time tensioning and static locking" and dynamic changes in the strata, and realizes dual-degree-of-freedom, reversible mechanical dynamic control of the prestressed anchor cable.

[0049] Specifically, the structure of the first locking unit is optimized, such as... Figure 2 As shown, the first locking unit includes:

[0050] Tooth block 3 is slidably disposed on connecting plate 801. Mounting base 2 has an arc-shaped surface and a plurality of tooth grooves 202 are provided along the arc-shaped surface. Tooth block 3 is engaged in the corresponding tooth grooves 202.

[0051] Fasteners are provided on the support plate 8 and are used to press the toothed block 3 into the toothed groove 202.

[0052] The toothed block 3 is mounted on the connecting plate 801 in a way that allows it to slide towards or away from the mounting base 2. The arc-shaped surface and the arc-shaped groove 201 are concentrically arranged, so that the several toothed grooves 202 opened on the arc-shaped surface are also concentrically arranged with the arc-shaped groove 201. In the initial state, when the bearing plate 8 is adjusted, the toothed block 3 is engaged with the toothed groove 202. When the bearing plate 8 is pushed to change its tilt angle, the toothed block 3 moves accordingly and can be aligned with different toothed grooves 202. When the tilt angle is fixed, the fastener can apply a force to the toothed block 3, causing the toothed block 3 to move towards the mounting base 2 and drive the toothed block 3 to be completely locked into the currently aligned toothed groove 202. This ensures the mechanical locking of the bearing plate 8 on the mounting base 2 and effectively resists the rotational torque generated by the anchor cable tension. The whole process realizes the active and controllable change of the spatial attitude of the anchor cable.

[0053] In some embodiments, the fastener can be an elastic component, such as a spring. The spring can be disposed between the back of the toothed block 3 and the support plate 8, and the elastic force it provides continuously pushes the toothed block 3 towards the mounting base 2, causing it to automatically engage into the aligned tooth groove 202 for quick locking. To ensure stability, the fastener is preferably an adjusting bolt 301. The support plate 8 is provided with a threaded cylinder, and the adjusting bolt 301 is threadedly connected to the threaded cylinder, with its end rotatably disposed on the toothed block 3. Tightening the adjusting bolt 301 can drive the toothed block 3 to be tightly pressed into the tooth groove 202, and achieve self-locking through the self-locking force of the thread. Loosening the adjusting bolt 301 can release the toothed block 3, allowing it to disengage from the tooth groove 202 for angle adjustment. Compared with spring locking, the locking method of adjusting bolt 301 makes the dynamic adjustment process more robust and reliable.

[0054] Specifically, the structure of the second locking unit is optimized, such as... Figure 4 As shown, the second locking unit includes an adjusting block 6, an mounting plate 501 with a mounting groove 502, the adjusting block 6 being slidably disposed in the mounting groove 502, a plurality of slots 401 being provided on the inner side of the support plate 4, the adjusting block 6 having a locking block 601, the locking block 601 passing through the side of the mounting plate 501 and locking into the corresponding slot 401.

[0055] The adjusting block 6 is accommodated in the mounting groove 502 and can slide relative to the mounting plate 501. When it is necessary to fix the linear position of the pad 5, the adjusting block 6 is slid, driving the locking block 601 on it to move towards the support plate 4 until the end of the locking block 601 is engaged in the corresponding slot 401 on the inner side of the support plate 4. The mechanical locking formed by the locking block 601 and the slot 401 restricts the sliding of the mounting plate 501 relative to the support plate 4, thereby achieving the locking of the position of the pad 5.

[0056] Meanwhile, the mounting groove 502 is provided with a mounting rod 603, and the adjusting block 6 is provided with a mounting cylinder 602. The mounting cylinder 602 is sleeved on the mounting rod 603, and the mounting rod 603 is also sleeved with a spring 7, which abuts against the end of the mounting cylinder 602. Under the action of the spring 7, the locking block 601 is always kept in the locked state when there is no external force. Moreover, the locking block 601 is a right triangle, and the straight side of the right triangle is the base of the locking block 601. The locking groove 401 is adapted to the locking block 601. One right-angled side of the right triangle forms the base of the locking block 601, which bears the pressure of the locking block 601. The inclined surface adjacent to the base is the hypotenuse of the triangle, which acts as a guide. In the locked state, the right-angled base of the locking block 601 is in close contact with the bearing surface of the slot 401, providing the main shear bearing capacity and preventing the pad block 5 from retracting. When applying prestress to the anchor cable, there is no need to adjust the locking block 601. The jack is placed directly on the bearing plate 8, with the telescopic end of the jack at the bottom of the pad block 5. The telescopic end of the jack lifts the pad block 5, allowing the locking block 601 to overcome the spring force and slide along the inclined surface of the slot 401, thus entering the next slot 401, simplifying the adjustment steps.

[0057] Moreover, such as Figure 2 As shown, the adjusting block 6 has an adjusting part 604 extending out of the mounting groove 502. The adjusting part 604 can be a protruding button, pull ring, lever, or push block with anti-slip texture. When it is necessary to adjust the position of the pad 5, the adjusting part 604 can be directly moved away from the support plate 4, causing the adjusting block 6 to slide along the mounting rod 603 against the elastic force of the spring 7, so that the locking block 601 disengages from the slot 401. Then, the telescopic end of the jack is controlled to retract, and finally the adjusting part 604 is released directly. Under the action of the spring 7, the locking block 601 can automatically engage in the corresponding slot 401.

[0058] Specifically, such as Figure 2 As shown, the support plate 4 has a dovetail groove 402, and the mounting plate 501 is slidably engaged with the dovetail groove 402. The unique cross-sectional shape of the dovetail groove 402 provides a basic track for the linear sliding of the pad block 5, preventing it from jumping off under the action of anchor cable tension, vibration or accidental lateral force.

[0059] Specifically, such as Figure 1 As shown, the base 1 has several mounting holes 101. By selecting different fasteners (bolts, anchor rods, etc.) and connection methods, the device can be securely installed.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A BIM-based dynamic control device for anchor cables, characterized in that, include: Base (1); The support plate (8) has two mounting seats (2) mirrored on the base (1). Both mounting seats (2) are provided with arc grooves (201). The support plate (8) is provided with two connecting plates (801) corresponding to the two mounting seats (2). The connecting plates (801) are slidably disposed on the corresponding arc grooves (201). The pad (5) is provided with two mounting plates (501), the bearing plate (8) is provided with two support plates (4), the two mounting plates (501) are slidably engaged between the two support plates (4), and the pad (5) is also provided with an anchor (9) for installing anchor cables. The first locking unit is disposed on the support plate (8) and abuts against the mounting base (2) for fixing the position of the support plate (8) on the mounting base (2); The second locking unit is disposed on the mounting plate (501) and abuts against the support plate (4) for fixing the position of the mounting plate (501) on the support plate (4); Based on the BIM model analysis and the pile displacement and earth pressure data from on-site monitoring, if it is necessary to adjust the anchor cable inclination angle to optimize the force direction, the first locking unit can be released, the angle of the bearing plate (8) can be changed, and then it can be relocked; if it is necessary to fine-tune the prestress, the second locking unit can be released, the sliding pad (5) can be changed, thereby applying an additional displacement to the anchor cable to achieve stress compensation, and then it can be relocked.

2. The dynamic control device according to claim 1, characterized in that, The first locking unit includes: Tooth block (3), the tooth block (3) is slidably disposed on the connecting plate (801), the mounting base (2) has an arc-shaped surface, and the mounting base (2) has a plurality of tooth grooves (202) along the arc-shaped surface, the tooth block (3) is engaged in the corresponding tooth groove (202); Fasteners are provided on the support plate (8) for pressing the toothed block (3) into the toothed groove (202).

3. The dynamic control device according to claim 2, characterized in that, The fastener is an adjusting bolt (301), the bearing plate (8) is provided with a threaded cylinder, the adjusting bolt (301) is threadedly connected to the threaded cylinder, and the end is rotatably disposed on the toothed block (3).

4. The dynamic control device according to claim 1, characterized in that, The second locking unit includes an adjusting block (6), the mounting plate (501) has a mounting groove (502), the adjusting block (6) is slidably disposed in the mounting groove (502), the inner side of the support plate (4) has a plurality of slots (401), the adjusting block (6) has a locking block (601), the locking block (601) passes through the side of the mounting plate (501) and is locked in the corresponding slot (401).

5. The dynamic control device according to claim 4, characterized in that, The mounting groove (502) is provided with a mounting rod (603), the adjusting block (6) is provided with a mounting cylinder (602), the mounting cylinder (602) is sleeved on the mounting rod (603), the mounting rod (603) is also sleeved with a spring (7), and the spring (7) abuts against the end of the mounting cylinder (602).

6. The dynamic control device according to claim 5, characterized in that, The card block (601) is a right triangle, and the straight side of the right triangle is the bottom surface of the card block (601). The card slot (401) is adapted to the card block (601).

7. The dynamic control device according to any one of claims 4-6, characterized in that, The adjusting block (6) has an adjusting portion (604) extending out of the mounting groove (502).

8. The dynamic control device according to claim 1, characterized in that, The support plate (4) has a dovetail groove (402), and the mounting plate (501) is slidably engaged with the dovetail groove (402).

9. The dynamic control device according to claim 1, characterized in that, The base (1) has several mounting holes (101).

Images