Geotechnical engineering drilling hole depth automatic measuring device
By using a device combining a signal transmitter and receiver with a control board in geotechnical engineering drilling, the problem of inaccurate borehole depth recording was solved, achieving high-precision borehole depth measurement and real-time data transmission, thus improving the management efficiency of field drilling.
Patent Information
- Application Number
- CN202520523967.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-24
AI Technical Summary
In geotechnical engineering investigation, the accuracy of borehole depth recording is not high, making it difficult to achieve precise monitoring under field working conditions, and data recording is difficult during the drilling process.
An automatic borehole depth measurement device for geotechnical engineering is adopted, including a bullet head, a faucet eye bolt, and a handheld terminal. It uses a signal transmitter and a signal receiver to transmit signals through the mud medium, and combines the control board to calculate the borehole depth data in real time and send it to the handheld terminal.
It enables high-precision measurement and real-time data recording of borehole depth, simplifies field drilling data management, and improves the accuracy of borehole depth measurement and data transmission efficiency.
Smart Images
Figure CN223796010U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of geotechnical engineering drilling technology, especially to a geotechnical engineering drilling hole depth automatic measuring device. BACKGROUND
[0002] Geotechnical engineering investigation is a necessary procedure in the early stage of engineering construction. In the process of geotechnical engineering investigation, drilling construction is the most important method for obtaining original data (the most important data) of stratum. For investigation, drilling hole position, hole depth and sampling test method are the three most core works in the field. Due to the lag of technology development, the technical progress of field drilling is slow, and it still belongs to high-intensity work, and the intelligent process is slow. During field drilling construction, the monitoring of technical personnel on the site still stays in the original on-site monitoring stage, and the hole depth is calculated by the describer or the driller according to the number of drill rods and experience. However, since the length of the drill rod is not standard, the length error of the 4m drill rod can reach ±0.5m, and the number of field drill rods is easy to be miscounted, so the hole depth determination accuracy is not high. Due to the particularity of field working conditions, it is difficult to supervise the drilling process, and the technician is difficult to monitor multiple drilling machines. CONTENT OF THE UTILITY MODEL
[0003] The utility model mainly aims at providing a geotechnical engineering drilling hole depth automatic measuring device to solve the above problems.
[0004] In order to achieve the above purpose, the utility model provides a geotechnical engineering drilling hole depth automatic measuring device, which comprises a bullet head, a faucet hanging ring screw and a handheld terminal. The bullet head is internally provided with a first battery, a first control panel and a signal transmitter, and the first battery and the signal transmitter are electrically connected with the first control panel. The faucet hanging ring screw is internally provided with a signal receiver, a second battery and a second control panel. The signal receiver and the second battery are electrically connected with the second control panel. The signal transmitter is oppositely arranged with the signal receiver. The first control panel and the second control panel are signal connected with the handheld terminal.
[0005] Further, the signal transmitter and the signal receiver can be interchangeably installed at positions.
[0006] Further, the bullet head is made of stainless steel material.
[0007] Further, the first battery and the second battery are lithium ion button batteries.
[0008] Further, the bottom of the bullet head is provided with a heavy lead block.
[0009] The utility model has the following beneficial effects:
[0010] This invention provides high accuracy and is less prone to errors in hole depth measurement. It can directly measure the depth of each drilling operation during normal drilling procedures. Drilling data can be recorded and sent to a handheld terminal in real time, allowing users to monitor the drilling depth on-site online. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of geotechnical drilling in existing technologies;
[0012] Figure 2 This is a schematic diagram of an automatic borehole depth measuring device for geotechnical engineering proposed in this utility model.
[0013] In the diagram: 1-bullet head; 2-faucet eyelet screw; 3-handheld terminal; 11-signal transmitter; 12-first control board; 13-first battery; 21-signal receiver; 22-second battery; 23-second control board; 101-chuck; 102-drilling rig; 103-active drill rod; 104-drill rod; 105-core tube. Detailed Implementation
[0014] To achieve the above objectives and effects, the technical means and structure adopted by this utility model are described in detail with reference to the accompanying drawings, focusing on the features and functions of the preferred embodiments of this utility model.
[0015] like Figure 2 As shown, this utility model provides an automatic borehole depth measuring device for geotechnical engineering, including a bullet head 1, a faucet eye bolt 2, and a handheld terminal 3. The bullet head 1 is the same size as commercially available bullet heads and is made of stainless steel. When the weight is insufficient, lead blocks can be added to the bottom for weight. The bullet head 1 contains a first battery 13, a first control board 12, and a signal transmitter 11, both of which are electrically connected to the first control board 12. The faucet eye bolt 2 contains a signal receiver 21, a second battery 22, and a second control board 23, both of which are electrically connected to the second control board 23. The signal transmitter 11 and the signal receiver 21 are arranged opposite each other. The first control board 12 and the second control board 23 are both signal connected to the handheld terminal 3. The first control board 12 controls the signal transmitter 11 to emit a certain signal (such as ultrasonic wave, electromagnetic wave, electromagnetic field, etc.) and records the emission time t1. This signal can penetrate the mud medium and the signal attenuation is small. The signal receiver 21 receives the signal emitted by the signal transmitter 11. The second control board 23 records the reception time t2. The first control board 12 and the second control board 23 send the time information to the handheld terminal 3. The handheld terminal 3 processes the data and calculates the hole depth data.
[0016] In another embodiment, the signal transmitter 11 and the signal receiver 21 can interchange the installation position, that is, the water faucet hanger screw 2 sends the signal and the bullet head 1 receives the signal.
[0017] In another embodiment, the first battery 13 and the second battery 22 adopt lithium ion button batteries, which have a long service life and are convenient to replace.
[0018] Brief description of engineering drilling coring process
[0019] In the engineering drilling process, the drilling machine 102 applies power through the active drill rod 103 and increases the drilling depth by increasing the number of drill rods 104. Generally, 1-3 m of footage is required per round, and the core is taken out, at the end of the round (at this time, the active drill rod 103 generally enters the chuck 101), in order to smoothly pull out the core, the bullet head 1 is put into the active drill rod 103 and the drill rod 104 through the water faucet hanger screw 2, the bullet head 1 will fall and pass through the drill rod adapter, until the bullet head 1 is stopped at the reducing adapter of the core barrel 105. At this time, it is difficult for water and air to enter the core barrel 105, and a negative pressure is formed in the core barrel 105, so that the core in the core barrel is difficult to slide, then the drill rod 104 is lifted and disassembled section by section by the winch, until the core barrel 105 is pulled out, and the bullet head 1 is taken out at the core barrel reducing adapter, and then the core is taken out.
[0020] 2 Test method principle
[0021] During drilling, the core is taken out every round, generally the bullet head 1 is put in before the core is pulled out, at this time, the distance between the bullet head 1 and the water faucet hanger screw 2 is L, and the length L3 of the core barrel 105 is generally a standard length, which is generally unchanged during drilling, and the machine height of each drilling machine 102 is a fixed value L1. Therefore, only the distance L of each round footage is measured, the drilling depth D of this round can be calculated (D=L+L3-L1).
[0022] When the hand-held terminal 3 receives the t1 and t2 data, it can start calculation, wherein,
[0023] L=V*Δt
[0024] Δt=t2-t1
[0025] V is the propagation speed of the signal in the mud or clear water medium m / s.
[0026] The above only describes the preferred embodiment of the present application, not all embodiments, anyone should know that the structural changes made under the guidance of the present application, any technical solution with the same or similar to the present application, belongs to the protection scope of the present application.
Claims
1. A device for automatically measuring the depth of a geotechnical drilling hole, characterized in that, It comprises a bullet head, a faucet hanging ring screw and a handheld terminal; the bullet head is internally provided with a first battery, a first control panel and a signal transmitter, the first battery and the signal transmitter are electrically connected with the first control panel; the faucet hanging ring screw is internally provided with a signal receiver, a second battery and a second control panel; the signal receiver and the second battery are electrically connected with the second control panel; the signal transmitter is oppositely arranged with the signal receiver; the first control panel and the second control panel are signal connected with the handheld terminal.
2. The device for automatically measuring the depth of a geotechnical drilling hole according to claim 1, characterized in that, The signal transmitter and the signal receiver can interchangeably install positions.
3. The device for automatically measuring the depth of a geotechnical drilling hole according to claim 1, wherein The bullet head adopts stainless steel material.
4. The device for automatically measuring the depth of a geotechnical drilling hole according to claim 1, wherein The first battery and the second battery adopt lithium ion button batteries.
5. The device for automatically measuring the depth of a geotechnical drilling hole according to claim 1, wherein The bottom of the bullet head is provided with a heavy lead block.