Single pile bearing capacity detection device for civil engineering

Abstract

The utility model belongs to the technical field of civil engineering, and discloses a single pile bearing capacity detection device for civil engineering, which comprises a pile head exposed out of the ground and a rack arranged correspondingly, a drop hammer component is mounted on the rack, and an acceleration sensor and a force sensor are mounted on the side surface of the pile head close to the pile top. The drop hammer assembly comprises a winch installed on the machine frame, the end of a traction rope of the winch is connected with an electromagnet, the electromagnet adsorbs a heavy hammer through magnetic force, the winch drives the heavy hammer to ascend, the electromagnet is used for controlling the heavy hammer to freely fall, the heavy hammer is made to ascend and descend very conveniently, and the single pile bearing capacity detection efficiency can be improved. The first guide pipe, the second guide pipe, the guide rod and other structures control the displacement track of the electromagnet and the heavy hammer, position deviation during falling is avoided, it is guaranteed that the heavy hammer accurately falls on the pile head, it is guaranteed that the electromagnet accurately falls on the heavy hammer, and operation and detection can be better carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to civil engineering technical field, specifically a single pile bearing capacity detection device for civil engineering. BACKGROUND

[0002] Civil engineering is the construction of civil engineering and building engineering, covering houses, roads, railways, airports, bridges, water conservancy, ports, tunnels, water supply and drainage, protection and many other engineering ranges in the facilities and places in the construction of buildings, structures and engineering objects in the above and below ground, land, water, underwater and other categories.

[0003] In civil engineering, single pile bearing capacity detection is a test to determine the maximum load capacity that a single pile can withstand under vertical load, which is crucial to ensure the stability and safety of building foundations. Common detection methods include static load test method, high strain method, low strain method, and acoustic transmission method. Among them, the high strain method uses a heavy hammer to impact the pile top, causing the pile to produce sufficient penetration, and measures the velocity and force time history curve at the pile top. Through wave theory analysis, the ultimate bearing capacity of the single pile is calculated.

[0004] In the prior art, the heavy hammer impact pile top is mostly used with special equipment such as cranes on the construction site, which makes the detection method very troublesome and has many safety hazards, which is not conducive to the single pile bearing capacity detection of civil engineering and will also affect the detection efficiency.

[0005] Therefore, a single pile bearing capacity detection device for civil engineering is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] To solve the problems raised in the background art, the utility model provides a single pile bearing capacity detection device for civil engineering, which has the advantages of facilitating repeated detection and improving the accuracy of detection data.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a single pile bearing capacity detection device for civil engineering, comprising a pile head exposed to the ground and a corresponding rack, the rack is installed with a drop hammer assembly, the pile head side near the pile top is installed with an acceleration sensor and a force sensor;

[0008] The drop hammer assembly comprises a winch installed on the rack, the traction rope end of the winch is connected with an electromagnet, the electromagnet is magnetically attracted with a heavy hammer, the heavy hammer is arranged above the pile head, the winch drives the heavy hammer to rise, the electromagnet controls the free fall of the heavy hammer, the lifting of the heavy hammer is very convenient, and the efficiency of single pile bearing capacity detection can be improved.

[0009] Preferably, the rack comprises four evenly distributed vertical poles, the top of the vertical poles is fixedly connected with a top frame, the winch is installed on the top frame, the bottom end of the vertical poles is fixedly connected with a bottom plate, and adjacent vertical poles are fixedly connected with a cross bar.

[0010] Preferably, the weight comprises a hammer body, the top of the hammer body is fixedly connected with a magnetic metal plate, and the position of the magnetic metal plate corresponds to the position of the electromagnet.

[0011] Preferably, the outer side of the hammer body is fixedly connected with evenly distributed first guide pipes, a guide rod is arranged in the first guide pipes, the top end and the bottom end of the guide rod are fixedly connected with a support plate, and the support plate is fixedly connected with a rack, so as to control the displacement track of the weight, avoid the deviation of the position when falling, and ensure that the weight accurately falls on the pile head.

[0012] Preferably, the outer side of the electromagnet is fixedly connected with evenly distributed second guide pipes, the guide rod is arranged in the second guide pipes, so as to ensure that the electromagnet accurately falls on the weight, and facilitate better operation and detection.

[0013] Preferably, the top of the electromagnet is fixedly connected with a connecting seat, and the connecting seat is fixedly connected with a traction rope.

[0014] Compared with the prior art, the utility model has the beneficial effects as follows:

[0015] 1、 the utility model discloses a falling weight assembly is arranged, the ascending of weight is driven through the winch, the lifting of weight is very convenient through the electromagnet control weight free fall, can accelerate the efficiency of single pile bearing capacity detection;

[0016] 2、 the utility model discloses a first guide pipe, second guide pipe, guide rod and other structures are arranged, control the displacement track of electromagnet and weight, avoid the deviation of the position when falling, ensure that weight accurately falls on the pile head, and ensure that the electromagnet accurately falls on the weight, so as to facilitate better operation and detection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the structure schematic view of the rack of the utility model;

[0019] Figure 3 It is the guide structure schematic view of the utility model;

[0020] Figure 4 It is the structure schematic view of the falling weight assembly of the utility model;

[0021] Figure 5 It is the structure schematic view of the weight of the utility model.

[0022] In the figure: 1, pile head; 2, rack; 201, vertical rod; 202, top frame; 203, bottom plate; 204, cross rod; 3, drop hammer assembly; 301, winch; 302, traction rope; 303, electromagnet; 304, weight; 3041, hammer body; 3042, magnetic metal plate; 305, connecting seat; 4, acceleration sensor; 5, force sensor; 6, first guide pipe; 7, guide rod; 8, support plate; 9, second guide pipe. DETAILED DESCRIPTION

[0023] The technical solutions 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 are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] As shown in the figure, Figures 1 to 5 The utility model provides a single pile bearing capacity detection device for civil engineering, including the pile head 1 exposed ground and corresponding rack 2 of setting, install drop hammer assembly 3 on rack 2, install acceleration sensor 4 and force sensor 5 on the side of pile head 1 near the position of pile top;

[0025] Drop hammer assembly 3 includes the winch 301 installed on the rack 2, the traction rope 302 end of winch 301 is connected with electromagnet 303, electromagnet 303 is adsorbed with weight 304 through magnetic force, weight 304 is arranged above pile head 1, the ascension of weight 304 is driven through winch 301, the free fall of weight 304 is controlled using electromagnet 303, the lifting of weight 304 is very convenient, can accelerate the efficiency of single pile bearing capacity detection.

[0026] Specifically, as shown in the figure, Figure 2 Rack 2 includes four evenly distributed vertical rods 201, the top of vertical rod 201 is fixedly connected with top frame 202, winch 301 is installed on top frame 202, the bottom end of vertical rod 201 is fixedly connected with bottom plate 203, and adjacent vertical rods 201 are fixedly connected with cross rod 204.

[0027] Further, as shown in the figure, Figure 5 Weight 304 includes hammer body 3041, the top of hammer body 3041 is fixedly connected with magnetic metal plate 3042, the position of magnetic metal plate 3042 corresponds with the position of electromagnet 303, hammer body 3041 is used to ensure the weight of weight 304, magnetic metal plate 3042 is used for the adsorption of electromagnet 303, thereby controlling the separation of weight 304.

[0028] Further, the outer side of the hammer body 3041 is fixedly connected with uniformly distributed first guide pipes 6, the first guide pipes 6 are provided with guide rods 7, the top end and the bottom end of the guide rods 7 are fixedly connected with support plates 8, the support plates 8 are fixedly connected with the rack 2, the displacement track of the heavy hammer 304 is controlled, the position deviation when falling is avoided, and it is ensured that the heavy hammer 304 accurately falls on the pile head 1.

[0029] It is worth noting that the outer side of the electromagnet 303 is fixedly connected with uniformly distributed second guide pipes 9, the guide rods 7 are arranged in the second guide pipes 9, and it is ensured that the electromagnet 303 accurately falls on the heavy hammer 304, so that the operation and detection are better.

[0030] It is worth noting that the top of the electromagnet 303 is fixedly connected with a connecting seat 305, and the connecting seat 305 is fixedly connected with the traction rope 302.

[0031] Among them, the winch 301, the electromagnet 303, the acceleration sensor 4 and the force sensor 5 are prior art, and will not be described again; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of the patent, and will not be described again.

[0032] Working principle and process: the device is placed at the position of the pile head 1, the heavy hammer 304 is above the pile head 1, at the same time, the electromagnet 303 is attracted to the heavy hammer 304 by magnetic force, the winch 301 is started, the traction rope 302 is wound, the electromagnet 303 and the heavy hammer 304 are lifted or lowered, the distance between the pile head 1 and the heavy hammer 304 is adjusted according to the requirement, the acceleration sensor 4 and the force sensor 5 are installed at the corresponding position of the pile head 1, then the electromagnet 303 is turned off, and the heavy hammer 304 is in free fall, that is, it falls on the pile head 1, the force and speed signals of the pile top are collected, then professional analysis software is used for data processing and analysis, and single pile bearing capacity and other parameters are obtained, the winch 301 is started, the electromagnet 303 falls on the heavy hammer 304, the electromagnet 303 is started, the magnetic metal plate 3042 of the heavy hammer 304 is attracted, and then the heavy hammer 304 is lifted, so as to repeatedly detect and ensure the accuracy of the detection data, the first guide pipe 6, the second guide pipe 9 and the guide rod 7 control the displacement track of the electromagnet 303 and the heavy hammer 304, avoid the position deviation when falling, ensure that the heavy hammer 304 accurately falls on the pile head 1, and ensure that the electromagnet 303 accurately falls on the heavy hammer 304, so as to better operate and detect.

[0033] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A single pile bearing capacity detection device for civil engineering, comprising a pile head (1) exposed to the ground and a corresponding rack (2), characterized in that: The rack (2) is provided with a drop hammer assembly (3), and an acceleration sensor (4) and a force sensor (5) are arranged on the side of the pile head (1) close to the pile top; The drop hammer assembly (3) comprises a winch (301) arranged on the rack (2), and the traction rope (302) of the winch (301) is connected with an electromagnet (303), the electromagnet (303) is provided with a weight (304) through magnetic force, and the weight (304) is arranged above the pile head (1).

2. The single pile bearing capacity detection device for civil engineering according to claim 1, characterized in that: The rack (2) comprises four vertical rods (201) which are uniformly distributed, the top of the vertical rod (201) is fixedly connected with a top rack (202), the winch (301) is arranged on the top rack (202), the bottom end of the vertical rod (201) is fixedly connected with a bottom plate (203), and adjacent vertical rods (201) are fixedly connected with a cross rod (204).

3. The single pile bearing capacity detection device for civil engineering according to claim 1, characterized in that: The weight (304) comprises a hammer body (3041), the top of the hammer body (3041) is fixedly connected with a magnetic metal plate (3042), and the position of the magnetic metal plate (3042) corresponds to the position of the electromagnet (303).

4. The device for detecting the bearing capacity of a single pile according to claim 3, characterized in that: The outer side of the hammer body (3041) is fixedly connected with uniformly distributed first guide pipes (6), the first guide pipes (6) are provided with guide rods (7) inside, the top end and the bottom end of the guide rod (7) are fixedly connected with support plates (8), and the support plates (8) are fixedly connected with the rack (2).

5. A device for detecting the bearing capacity of a single pile for civil engineering according to claim 4, characterized in that: The outer side of the electromagnet (303) is fixedly connected with uniformly distributed second guide pipes (9), and the guide rod (7) is arranged in the second guide pipe (9).

6. The single pile bearing capacity detection device for civil engineering according to claim 1, characterized in that: The top of the electromagnet (303) is fixedly connected with a connecting seat (305), and the connecting seat (305) is fixedly connected with the traction rope (302).

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