A BIM-based visual roadbed earthwork compaction detection device and usage method

Abstract

The present invention discloses a BIM-based visual roadbed earthwork compaction detection device and a method for use, comprising a bearing rod and a detection base; the bearing rod is composed of a plurality of pipes connected to each other, with strain gauges tightly mounted on the pipes; the detection base is composed of a high-strength spring, a steel sensing plate, an inner protective shell, an outer protective shell, and a strain sensing transmitter; the strain sensing transmitter is disposed at the bottom of the high-strength spring and is used to feed back stress changes to a computer via an external receiving device. The present invention sets up multiple detection bases, numbers each detection base, connects the detection bases into a whole via bearing rods, and uses a computer to count the compressive stress changes of the detection bases at each numbered location, and forms a corresponding feedback control area for detecting backfilled and compacted roadbed earthwork projects, thereby achieving the effect of visual integrated display of roadbed compaction, with the advantages of real-time perception and real-time feedback.

Description

Technical Field

[0001] The present invention relates to the technical field of roadbed earthwork construction, and in particular to a BIM-based visualized roadbed earthwork compaction detection device and a use method thereof. Background Art

[0002] With the rapid development of urban infrastructure, construction projects have gradually transitioned from the original CAD two-dimensional system to the current BIM three-dimensional system. In the subsequent construction process, BIM's three-dimensional capabilities have been fully demonstrated in all aspects of construction projects. In traditional roadbed earthwork construction, earthwork compaction testing relies on traditional testing methods such as ring cutters and sand injection, which are inefficient. Summary of the Invention

[0003] The purpose of the present invention is to provide a BIM-based visual roadbed earthwork compaction detection device and method of use, which is used to detect backfilled and compacted roadbed earthwork projects to achieve the effect of visual integrated display of roadbed compaction degree, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A BIM-based visualized roadbed earth compaction detection device comprises a bearing rod and a detection base; the bearing rod is composed of a plurality of pipes connected to each other; strain gauges are tightly mounted on the pipes; the detection base is composed of a high-strength spring, a steel sensing plate, an inner protective shell, an outer protective shell and a strain sensing transmitting device; the inner protective shell is inserted into the outer protective shell from top to bottom; the high-strength spring is distributed in the cavities of the inner and outer protective shells, and a steel sensing plate is welded to the top of the inner protective shell; the pipe is connected to the steel sensing plate, which is provided with a thread matching the pipe and a strain sensing part for sensing the strain gauge; the strain sensing transmitting device is arranged at the bottom of the high-strength spring, and is used to feed back stress changes to a computer through an external receiving device.

[0006] Furthermore, the pipe is made of hollow steel with a diameter of 1-2 cm and a wall thickness of 1.5-2 mm. The pipe is provided with two specifications, namely standard pipe and connecting pipe. One end of the connecting pipe is a threaded interface and the other end is a mortise and tenon bayonet. Both ends of the standard pipe are mortise and tenon bayonet. The standard pipe and the connecting pipe are spliced ​​with each other through the threaded interface and the mortise and tenon bayonet to form a load-bearing rod.

[0007] Furthermore, the strain gauge is used to sense stress changes outside the load-bearing rod.

[0008] Furthermore, a plurality of detection bases are provided, and adjacent detection bases are connected as a whole via bearing rods.

[0009] Furthermore, the contact surface between the inner protective shell and the outer protective shell is provided with serrations, and the inner protective shell and the outer protective shell are engaged and connected by the serrations.

[0010] The present invention provides another technical solution: a method for using a BIM-based visual roadbed earthwork compaction detection device, comprising the following steps:

[0011] S1: According to the construction sequence of the roadbed project, fill the earthwork to 30-60cm below the top surface of the roadbed. Install a test base every 10-20㎡, then connect adjacent test bases together through pipes and number each test base;

[0012] S2: The strain gauge senses the pressure changes transmitted from above and transmits the stress changes to the steel sensing plate through the pipe. The steel sensing plate compresses the high-strength spring below.

[0013] S3: The high-strength spring feeds back the stress changes in the entire area through the strain sensing transmitter, and then feeds back to the computer through the external receiving device;

[0014] S4: The computer collects statistics on the compressive stress changes of the detection bases at each numbered location and forms corresponding feedback control areas to achieve the function of intelligent detection of roadbed compaction.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The BIM-based visualized roadbed earthwork compaction detection device and method of use of the present invention, by setting up multiple detection bases, connects adjacent detection bases into a whole through bearing rods, and numbers each detection base. A computer statistics the compressive stress changes of the detection bases at each number, and forms a corresponding feedback control area for detecting the backfilled and compacted roadbed earthwork project, thereby achieving the effect of visual integrated display of roadbed compaction degree, and has the advantages of real-time perception, real-time feedback, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A state diagram is used for the overall structure of the present invention;

[0018] Figure 2 It is a structural diagram of the detection device of the present invention;

[0019] Figure 3 This is a diagram showing the internal structure of the detection device of the present invention;

[0020] Figure 4 This is a structural diagram of the load-bearing rod of the present invention;

[0021] Figure 5 This is a structural diagram of the connecting pipe end portion of the present invention;

[0022] Figure 6 This is a structural diagram of a standard pipe end portion of the present invention;

[0023] Figure 7 This is a partial structural diagram of the steel induction plate of the present invention;

[0024] Figure 8 This is a structural diagram of the inner and outer protective shells of the present invention.

[0025] In the figure: 1. Load-bearing rod; 101. Pipe; 102. Strain gauge; 103. Threaded interface; 104. Mortise and tenon joint; 2. Detection base; 201. High-strength spring; 202. Steel sensing plate; 203. Inner protective shell; 204. Outer protective shell; 205. Strain sensing transmitter; 206. Thread; 207. Strain sensing part; 208. Sawtooth. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-8In an embodiment of the present invention, a BIM-based visual roadbed earthwork compaction detection device is provided, comprising a bearing rod 1 and a detection base 2. A plurality of detection bases 2 are provided, and adjacent detection bases 2 are connected as a whole through the bearing rod 1; the bearing rod 1 is composed of a plurality of pipes 101 connected to each other; a strain gauge 102 is tightly mounted on the pipe 101, and the strain gauge 102 can effectively sense external stress changes; the detection base 2 is composed of a high-strength spring 201, a steel sensing plate 202, an inner protective shell 203, an outer protective shell 204 and a strain sensing transmitter 205; the inner protective shell 203 is inserted into the outer protective shell 204 from top to bottom; the high-strength spring 201 is distributed inside In the cavity of the protective shell 203 and the outer protective shell 204, serrations 208 are provided on the contact surface of the inner protective shell 203 and the outer protective shell 204, and the inner protective shell 203 and the outer protective shell 204 are engaged and connected by the serrations 208; a steel sensing plate 202 is welded to the top of the inner protective shell 203; the pipeline 101 is connected to the steel sensing plate 202, and the steel sensing plate 202 is provided with a thread 206 matching the pipeline 101 and a strain sensing part 207 for sensing the strain gauge 102; a strain sensing transmitting device 205 is provided at the bottom of the high-strength spring 201, and the strain sensing transmitting device 205 can be connected to the circuit in the pipeline 101 to feed back stress changes to a computer through an external receiving device.

[0028] In the above embodiment, the pipe 101 is made of hollow steel with a diameter of 1-2 cm and a wall thickness of 1.5-2 mm. The pipe 101 has two specifications, namely a standard pipe and a connecting pipe. One end of the connecting pipe is a threaded interface 103, and the other end is a mortise and tenon bayonet 104. Both ends of the standard pipe are mortise and tenon bayonet 104. The standard pipe and the connecting pipe are spliced ​​with each other through the threaded interface 103 and the mortise and tenon bayonet 104 to form a load-bearing rod 1. The different interface forms can make the connection more firm and reliable.

[0029] In order to further better explain the embodiments of the present invention, a method for using a BIM-based visual roadbed earthwork compaction detection device is also provided, comprising the following steps:

[0030] Step 1: First, according to the construction sequence of the roadbed project, fill the earthwork to 30-60cm below the top surface of the roadbed, install a detection base 2 every 10-20㎡, and then connect adjacent detection bases 2 together through pipes 101. Each detection base 2 is numbered. The pipes 101 are designed by splicing standard pipes and connecting pipes with threaded interfaces 103 and mortise and tenon joints 104 according to the installation situation;

[0031] Step 2: The strain gauge 102 senses the pressure change transmitted from above, and transmits the stress change to the steel sensing plate 202 through the pipe 101. The steel sensing plate 202 compresses the high-strength spring 201 below.

[0032] Step 3: The high-strength spring 201 feeds back the stress changes in the entire area through the strain sensing transmitter 205, and then feeds back to the computer through an external receiving device;

[0033] Step 4: The computer collects statistics on the compressive stress changes of the detection base 2 at each numbered location and forms a corresponding feedback control area, thereby achieving the effect of real-time perception and real-time feedback, and ultimately realizing the role of intelligent detection of roadbed compaction.

[0034] To sum up: The present invention provides a BIM-based visual roadbed earthwork compaction detection device and usage method, which sets up multiple detection bases 2, connects adjacent detection bases 2 into a whole through a bearing rod 1, and numbers each detection base 2. The computer statistics the compressive stress changes of the detection base 2 at each number, and forms a corresponding feedback control area for detecting the backfilled and compacted roadbed earthwork project, thereby achieving the effect of visual integrated display of roadbed compaction degree, and has the advantages of real-time perception, real-time feedback, etc.

[0035] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A BIM-based visual roadbed earthwork compaction detection device, characterized in that: The invention comprises a bearing rod (1) and a detection base (2); the bearing rod (1) is composed of a plurality of pipes (101) connected to each other; a strain gauge (102) is tightly fitted on the pipe (101); the detection base (2) is composed of a high-strength spring (201), a steel sensing plate (202), an inner protective shell (203), an outer protective shell (204) and a strain sensing transmitting device (205); the inner protective shell (203) is inserted into the outer protective shell (204) from top to bottom; the high-strength spring (201) is distributed in the inner protective shell (203) and the outer protective shell (204) is connected to the inner protective shell (204) and the outer protective shell (205). A steel induction plate (202) is welded to the top of the inner protective shell (203) in the cavity of the inner protective shell (203) and the outer protective shell (204); the pipe (101) is connected to the steel induction plate (202); the steel induction plate (202) is provided with a thread (206) matching the pipe (101) and a strain induction portion (207) for inducing the strain gauge (102); the strain induction transmitting device (205) is arranged at the bottom of the high-strength spring (201) and is used to feed back stress changes to a computer through an external receiving device.

2. The BIM-based visual roadbed earthwork compaction detection device according to claim 1, characterized in that: The pipe (101) is made of hollow steel with a diameter of 1-2 cm and a wall thickness of 1.5-2 mm. The pipe (101) is provided with two specifications, namely a standard pipe and a connecting pipe. One end of the connecting pipe is a threaded interface (103) and the other end is a mortise and tenon bayonet (104). Both ends of the standard pipe are mortise and tenon bayonet (104). The standard pipe and the connecting pipe are spliced ​​together through the threaded interface (103) and the mortise and tenon bayonet (104) to form a bearing rod (1).

3. The BIM-based visual roadbed earthwork compaction detection device according to claim 1, characterized in that: The strain gauge (102) is used to sense stress changes outside the load-bearing rod (1).

4. The BIM-based visual roadbed earthwork compaction detection device according to claim 1, characterized in that: A plurality of detection bases (2) are provided, and adjacent detection bases (2) are connected as a whole via a bearing rod (1).

5. The BIM-based visual roadbed earthwork compaction detection device according to claim 1, characterized in that: Saw teeth (208) are provided on the contact surfaces of the inner protective shell (203) and the outer protective shell (204), and the inner protective shell (203) and the outer protective shell (204) are engaged and connected via the saw teeth (208).

6. A method for using the BIM-based visual roadbed earthwork compaction detection device according to claim 1, characterized in that: The following steps are involved: S1: According to the construction sequence of the roadbed project, earthwork is filled to 30-60 cm below the top surface of the roadbed, and a detection base (2) is installed every 10-20 m2. Adjacent detection bases (2) are then connected together through pipes (101), and each detection base (2) is numbered; S2: The strain gauge (102) senses the pressure change transmitted from above, and transmits the stress change to the steel sensing plate (202) through the pipe (101). The steel sensing plate (202) compresses the high-strength spring (201) below. S3: The high-strength spring (201) feeds back the stress change in the entire area through the strain sensing transmitter (205), and then feeds back to the computer through an external receiving device; S4: The computer collects statistics on the compressive stress changes of the detection bases (2) at each numbered position and forms corresponding feedback control areas, thereby realizing the function of intelligent detection of roadbed compaction.

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