Integrated rapid loading method bridge pile foundation efficient detection device

Abstract

The utility model belongs to the technical field of pile foundation detection, particularly relates to an integrated high-efficiency bridge pile foundation detection device adopting a rapid loading method, and aims to solve the problems of high installation difficulty and poor data synchronism in the background technology, and provides the following scheme: the integrated high-efficiency bridge pile foundation detection device comprises a base, and an integrated steel frame is welded on the outer wall of the top of the base; sliding rails are welded to the inner walls of the two sides of the integrated steel frame correspondingly, and a heavy hammer is slidably connected between the two sliding rails. Through linkage clamping connection of the passive clamping hook and the movable clamping hook, rapid release of the heavy hammer is achieved, delay of manual unhooking is avoided, it is ensured that the heavy hammer instantly and freely falls at the set height, energy loss is eliminated, and the impact load is closer to a theoretical value; pile foundation deformation, impact acceleration and heavy hammer falling distance are monitored respectively, multi-dimensional data fusion analysis is performed, pile foundation bearing capacity and integrity parameters can be accurately calculated, and limitation of a single data source is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile foundation detection technical field especially relates to integrated type fast load method bridge pile foundation efficient detection device. BACKGROUND

[0002] As the important bearing structure of bridge, building and other engineering, the quality of pile foundation is directly related to the safety and durability of the whole engineering. Pile foundation detection is the key link to ensure that it meets the design requirements through the evaluation of pile body integrity, bearing capacity and deformation characteristics. The commonly used detection methods at present include static load test, dynamic load test, high strain detection and the like. Among them, the fast load method as a dynamic detection means simulates the actual stress state of pile foundation by applying instantaneous impact load, and combines sensor data to quickly evaluate the performance of pile foundation, and has the advantages of high efficiency and low cost. However, the existing fast load method detection device generally has problems of complex operation, low automation degree, insufficient data acquisition accuracy and the like, especially in the aspects of heavy hammer release control and multi-parameter synchronous monitoring, which need to be improved.

[0003] The traditional fast load method detection device adopts a split type structure, needs to be matched with additional hoisting equipment, which leads to time-consuming and poor stability in field installation. For example, the heavy hammer release depends on manual operation, and the delay in unhooking may cause impact energy loss and affect the detection accuracy; the sensor arrangement is dispersed, the data synchronization is poor, and it is difficult to fully reflect the dynamic response of pile foundation. UTILITY MODEL CONTENT

[0004] In view of the defects of the prior art, the utility model provides an integrated type fast load method bridge pile foundation efficient detection device, which overcomes the defects of the prior art and effectively solves the problems of large installation difficulty and poor data synchronization.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The integrated type fast load method bridge pile foundation efficient detection device comprises a base, an integrated steel frame is welded on the top outer wall of the base, sliding rails are welded on the inner walls of the two sides of the integrated steel frame, a heavy hammer is slidably connected between the two sliding rails, and an automatic unhooking device is arranged on the top of the heavy hammer.

[0007] The automatic unhooking device comprises a hook plate, a U-shaped plate, a movable hook, a rectangular plate, a passive hook and a hanging ring, the hook plate is hung on the top outer wall of the heavy hammer, the U-shaped plate is rotatably connected to the outer wall of one end of the hook plate, the passive hook is welded to the top outer wall of the U-shaped plate, the rectangular plate is rotatably connected to the outer wall of the hook plate, and the movable hook is welded to the outer wall of one end of the rectangular plate.

[0008] Preferably, the passive hook and the movable hook are mutually clamped.

[0009] Preferably, the base top outer wall is provided with a round hole, and a pile base body is arranged in the round hole, a hoop is arranged on the outer wall of the pile base body, and a displacement sensor is fixedly connected to one side of the outer wall of the hoop.

[0010] Preferably, a connecting plate is welded to one side of the weight, and an acceleration sensor and a laser distance sensor are arranged on the top outer wall of the connecting plate.

[0011] Preferably, a hook is hung on the inner wall of the hook plate, and a lifting rope for lifting the weight is fixedly connected to the top outer wall of the hook.

[0012] Preferably, a pile base body is arranged on the top outer wall of the pile base body.

[0013] Preferably, a lifting ring is welded to each end of the top outer wall of the integrated steel frame.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The glass tempering furnace convection heating structure of the design, the automatic unhooking device is composed of a hook plate, a U-shaped plate and a movable hook, the passive hook and the movable hook are linked and clamped, the weight is quickly released, the delay of manual unhooking is avoided, the weight is ensured to be instantaneously and freely dropped at a set height, energy loss is eliminated, and the impact load is closer to a theoretical value.

[0016] 2. The glass tempering furnace convection heating structure of the design, the device integrates a displacement sensor, an acceleration sensor and a laser distance sensor, and respectively monitors pile foundation deformation, impact acceleration and weight falling distance. The displacement sensor is fixed to the pile base body through the hoop and collects pile top displacement in real time; the acceleration sensor and the laser sensor are installed on the connecting plate of the weight side wall, and simultaneously record the acceleration change and falling track at the impact moment, multi-dimensional data fusion analysis can accurately calculate the pile foundation bearing capacity and integrity parameters, and the limitation of a single data source is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides an integrated structure schematic diagram of efficient detection device of bridge pile foundation of speed load method;

[0018] Figure 2 The utility model provides an integrated structure schematic diagram of efficient detection device of bridge pile foundation of speed load method;

[0019] Figure 3 The utility model provides an integrated structure schematic diagram of efficient detection device of bridge pile foundation of speed load method;

[0020] Figure 4The utility model provides an automatic unhooker of integral type fast loading method bridge pile foundation efficient detection device's structure schematic diagram when separating.

[0021] In the drawing: 1, base; 2, integral type steel frame; 3, slide rail; 4, weight; 5, automatic unhooker; 51, hook plate; 52, U-shaped plate; 53, passive hook; 54, rectangular plate; 55, movable hook; 56, hanging ring; 6, pile foundation body; 7, hoop; 8, displacement sensor; 9, connecting plate; 10, acceleration sensor; 11, laser distance sensor; 12, hook; 13, lifting rope; 14, backing plate; 15, lifting ring. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.

[0023] Embodiment one, refer to Figure 1 Integral type fast loading method bridge pile foundation efficient detection device, including base 1, the top outer wall of base 1 is welded with integral type steel frame 2, and the inside wall of integral type steel frame 2 is welded with slide rail 3 on both sides, and the weight 4 is slidably connected between the two slide rails 3, and the top of weight 4 is provided with automatic unhooker 5.

[0024] The base 1 is welded with the integral type steel frame 2 on the top, and the slide rails 3 are symmetrically welded on the inside walls of the integral type steel frame 2 on both sides. The weight 4 is slidably connected with the integral type steel frame 2 through the slide rails 3, to ensure the vertical motion trajectory.

[0025] Embodiment two, refer to Figure 3 Integral type fast loading method bridge pile foundation efficient detection device, the automatic unhooker 5 includes hook plate 51, U-shaped plate 52, movable hook 55, rectangular plate 54, passive hook 53 and hanging ring 56, wherein the hook plate 51 is hung on the top outer wall of the weight 4, the U-shaped plate 52 is rotatably connected to the outer wall of one end of the hook plate 51, the passive hook 53 is welded to the top outer wall of the U-shaped plate 52, the rectangular plate 54 is rotatably connected to the outer wall of the hook plate 51, and the movable hook 55 is welded to the outer wall of one end of the rectangular plate 54. The passive hook 53 and the movable hook 55 are mutually clamped.

[0026] When the automatic unhooker 5 is assembled, the hook plate 51 is hung on the top of the weight 4, and the U-shaped plate 52 and the rectangular plate 54 are connected with the hook plate 51 through the rotating shafts respectively. After the movable hook 55 and the passive hook 53 are clamped, the hanging ring 56 is connected with the external lifting device. When unhooking, external force acts on the rectangular plate 54, drives the movable hook 55 to rotate around the shaft and separates from the passive hook 53, and the weight 4 is released instantaneously.

[0027] Refer to Figures 1-2The outer wall of the top of the base 1 is provided with a circular hole, and a pile basic body 6 is arranged through the circular hole. A hoop 7 is arranged on the outer wall of the pile basic body 6. A displacement sensor 8 is fixedly connected to one side of the outer wall of the hoop 7. A connecting plate 9 is welded to one side of the outer wall of the heavy hammer 4. An acceleration sensor 10 and a laser distance sensor 11 are arranged on the top of the outer wall of the connecting plate 9, respectively. A cushion plate 14 is arranged on the top of the outer wall of the pile basic body 6.

[0028] The acceleration sensor 10 collects the acceleration peak at the moment of impact. The laser distance sensor 11 measures the falling distance of the heavy hammer 4 in real time through the emission-reception optical signal, and calculates the impact speed in combination with the time parameter. The displacement sensor 8 is fixed to the outer wall of the pile basic body 6 through the hoop 7. The cushion plate 14 is arranged on the top of the pile, and high-strength steel plates are used to disperse the impact force and prevent the pile head from being crushed.

[0029] With reference to Figure 1 A hook 12 is hung on the inner wall of the hook plate 51, and the top of the outer wall of the hook 12 is fixedly connected with a lifting rope 13 for lifting the heavy hammer 4.

[0030] When the lifting rope 13 lifts the heavy hammer 4 to a set height through the hook 12, an external force triggers the active clasp 55 to be separated from the passive clasp 53, and the heavy hammer 4 freely falls to complete the impact.

[0031] With reference to Figure 1 Lifting rings 15 are welded to the top of the outer wall of the integral steel frame 2.

[0032] Working principle:

[0033] Lifting and positioning of the heavy hammer 4: The device is hoisted above the pile basic body 6 through the lifting ring 15, and the base 1 is adjusted so that the pile basic body 6 penetrates the center circular hole. Start the lifting equipment, and the lifting rope 13 pulls the heavy hammer 4 along the slide rail 3 to vertically rise to a set height through the hook 12. The laser distance sensor 11 monitors the lifting distance in real time and feeds back to the control system.

[0034] Automatic unhooking and impact: After reaching the preset height, the control system triggers the unhooking instruction, and an external force drives the active clasp 55 to be separated from the passive clasp 53. The heavy hammer 4 freely falls along the slide rail 3 under the action of gravity, and impacts the cushion plate 14 to transfer the load to the pile foundation. The acceleration sensor 10 records the acceleration curve at the moment of impact, and the laser distance sensor 11 synchronously collects the falling time and displacement data.

[0035] Data acquisition and processing: The displacement sensor 8 monitors the dynamic deformation of the pile top, and calculates the stiffness and damping characteristics of the pile foundation in combination with the acceleration data; the data of the laser distance sensor 11 is used to inverse the impact energy and the interaction force between the pile and the soil. The multi-sensor signals are uploaded in real time to the analysis terminal through the wireless transmission module, to generate the bearing capacity-displacement curve and the integrity evaluation report.

[0036] Reset and adaptive adjustment: after the impact is completed, the lifting rope 13 re-lifts the weight 4 to the initial position, the integrated design of the device supports continuous operation, and the detection efficiency is significantly improved.

[0037] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-efficiency detection device for integral quick-load bridge pile foundation, comprising a base (1), characterized in that, The base (1) top outer wall is welded with an integral steel frame (2), and the two sides of the integral steel frame (2) are welded with slide rails (3), the two slide rails (3) are slidably connected with a heavy hammer (4), and the top of the heavy hammer (4) is provided with an automatic unhooker (5); The automatic unhooker (5) comprises a hook plate (51), a U-shaped plate (52), a movable hook (55), a rectangular plate (54), a passive hook (53) and a hanging ring (56), wherein the hook plate (51) is hung on the top outer wall of the heavy hammer (4), the U-shaped plate (52) is rotatably connected to one end of the outer wall of the hook plate (51), the passive hook (53) is welded to the top outer wall of the U-shaped plate (52), the rectangular plate (54) is rotatably connected to the outer wall of the hook plate (51), and the movable hook (55) is welded to one end of the outer wall of the rectangular plate (54).

2. The integrated rapid load method bridge pile foundation efficient detection device according to claim 1, characterized in that, The passive hook (53) and the movable hook (55) are mutually clamped.

3. The integrated rapid load method bridge pile foundation high-efficiency detection device according to claim 1, characterized in that, The base (1) top outer wall is provided with a circular hole, and a pile basic body (6) is arranged in the circular hole, a hoop (7) is arranged on the outer wall of the pile basic body (6), and a displacement sensor (8) is fixedly connected to one side of the hoop (7).

4. The integrated rapid load method bridge pile foundation high-efficiency detection device according to claim 1, characterized in that, The heavy hammer (4) is welded with a connecting plate (9), and the connecting plate (9) is provided with an acceleration sensor (10) and a laser distance sensor (11) on the top outer wall.

5. The integrated rapid load method bridge pile foundation high-efficiency detection device according to claim 1, characterized in that, The inner wall of the hook plate (51) is hung with a hook (12), and the top outer wall of the hook (12) is fixedly connected with a lifting rope (13) for lifting the heavy hammer (4).

6. The integrated rapid load method bridge pile foundation high-efficiency detection device according to claim 3, characterized in that, The pile basic body (6) is placed with a base plate (14) on the top outer wall.

7. The integrated rapid load method bridge pile foundation high-efficiency detection device according to claim 1, characterized in that, The integral steel frame (2) is welded with a lifting ring (15) on the top outer wall of the two ends.

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