Rock-soil static sounding probe capable of automatically drilling

Abstract

The utility model provides a rock-soil static sounding probe capable of automatically drilling. The automatic drilling rock-soil static sounding probe comprises an air control box, a rear air cylinder, a middle air cylinder, a front air cylinder, a vertical plate, a horizontal plate, a floating joint, a fixed plate, an air joint, an air pipe, a rear section, a front section, a tip, a pressure sensor and an air bottle. The automatic-drilling rock-soil static sounding probe provided by the utility model has the advantages that the automatic-drilling rock-soil static sounding probe can automatically drill underground, so that the defect that the existing static sounding instrument cannot reach the expected depth under the site conditions that sufficient counter-acting force cannot be provided in lakes, marshes, sludge and the like is overcome; and the application scene of the static penetrometer is enriched.

Description

Technical Field

[0001] The utility model relates to the technical field of probes, in particular to an automatic drilling rock and soil static penetration probe. Background Art

[0002] Static penetration testing refers to the use of a pressure device to press a probe rod with a probe into the test soil layer. By measuring the penetration resistance of the soil through a measurement system, certain basic physical and mechanical properties of the soil can be determined, such as the deformation modulus of the soil, the allowable bearing capacity of the soil, etc.

[0003] Existing static penetration instruments are available in manual or hydraulic types. A drill rod, held perpendicular to the ground, and a static penetration probe at the front are manually or hydraulically driven into the ground. The resistance applied to the probe is measured to analyze the distribution of underground soil layers. Because the soil's resistance to the probe is upward, a reaction frame is required to secure the instrument to the ground before penetration to prevent it from being lifted.

[0004] However, when erecting a reaction force device on extremely soft ground such as lakes, swamps, and silt, the ground cannot provide sufficient reaction force and support force to the instrument. It is difficult to ensure that the reaction force device is vertical and difficult to form an effective connection with the ground.

[0005] Therefore, it is necessary to provide a new automatic drilling geotechnical static penetration probe to solve the above technical problems. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a geotechnical static penetration probe that can automatically drill underground, overcoming the defect of existing static penetration instruments that cannot reach the expected depth in site conditions such as lakes, swamps, and silt that cannot provide sufficient reaction force, and enriching the application scenarios of the static penetration instrument with the automatically drilling geotechnical static penetration probe.

[0007] In order to solve the above technical problems, the utility model provides an automatic drilling geotechnical static penetration probe comprising: a pointed tip, one side of the pointed tip is threadedly connected to a pressure sensor, the side of the pressure sensor away from the pointed tip is threadedly connected to a vertical plate, two rear section plates and two front section plates are symmetrically welded on the vertical plate, the two rear section plates are each provided with a rear cylinder fixedly mounted on the vertical plate, the two front section plates are each provided with a front cylinder fixedly mounted on the vertical plate, a horizontal plate is provided on the side of the rear section plate close to the front section plate, two middle cylinders are symmetrically provided on the side of the horizontal plate close to the rear section plate, the piston rod of the middle cylinder passes through the horizontal plate and is connected to a floating connector, the same fixed plate is fixedly mounted on the two floating connectors, the fixed plate is fixedly connected to the two front section plates, the rear cylinder, the middle cylinder and the front cylinder are connected to the same air control box, and the air control box is connected to a gas cylinder.

[0008] Preferably, the rear cylinder and the front cylinder are both thin cylinders, and the middle cylinder is a pen-shaped cylinder.

[0009] Preferably, the rear cylinder, the middle cylinder and the front cylinder are all provided with air joints, and the air joints are all connected to air pipes.

[0010] Preferably, a waist-shaped hole is opened on the horizontal plate, and the piston rod of the middle cylinder passes through the waist-shaped hole and is slidably connected to the inner wall of the waist-shaped hole.

[0011] Compared with related technologies, the automatic drilling geotechnical static penetration probe provided by the present invention has the following beneficial effects:

[0012] The utility model provides an automatically drilling geotechnical static penetration probe, which can automatically complete penetration underground without a reaction force device, solving the problem that when a reaction force device is set up on extremely soft ground such as lakes, swamps, and silt, the ground cannot provide the instrument with sufficient reaction force and support force, resulting in failure to penetrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a structural schematic diagram of a preferred embodiment of the automatic drilling geotechnical static penetration probe provided by the present invention.

[0014] Numbers in the figure: 1. Air control box, 2. Rear cylinder, 3. Middle cylinder, 4. Front cylinder, 5. Vertical plate, 6. Horizontal plate, 7. Floating joint, 8. Fixed plate, 9. Air joint, 10. Air pipe, 11. Rear section plate, 12. Front section plate, 13. Tip, 14. Pressure sensor, 15. Gas cylinder. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0016] Please refer to Figure 1 ,in, Figure 1 This is a schematic diagram of the structure of a preferred embodiment of the automatic drilling geotechnical static penetration probe provided by the present invention. The automatic drilling geotechnical static penetration probe comprises: an air control box 1, a rear air cylinder 2, a middle air cylinder 3, a front air cylinder 4, a vertical plate 5, a horizontal plate 6, a floating joint 7, a fixed plate 8, an air joint 9, an air pipe 10, a rear section plate 11, a front section plate 12, a pointed tip 13, a pressure sensor 14, and a gas cylinder 15.

[0017] The cross sections of the rear section plate 11 and the front section plate 12 are both two hollow 180° sectors and are welded to the vertical plate 5. The vertical plate 5 is connected to the pressure sensor 14 by threading, and the tip 13 is connected to the pressure sensor 14 by threading.

[0018] The rear cylinder 2 and the front cylinder 4 are thin cylinders, and the middle cylinder 3 is a pen-shaped cylinder. The back of the cylinder barrel of the rear cylinder 2 and the front cylinder 4 is fixed on the vertical plate 5, and the piston rod is fixed on the arc section of the rear section plate 11 and the front section plate 12.

[0019] The front, middle, and rear cylinders each connect to two air pipes 10A to 10M via two air connectors 9. Pipes 10A and 10D converge via a three-way valve and connect to the air control box 1. When the air control box ventilates these pipes, the pistons in rear cylinders 2A and 2B retract. Pipes 10B and 10C converge via a three-way valve and connect to the air control box 1. When the air control box ventilates these pipes, the pistons in rear cylinders 2A and 2B pop out. Pipes 10E and 10G converge via a three-way valve and connect to the air control box 1. When the air control box ventilates these pipes, the pistons in middle cylinders 3A and 3B pop out. Pipes 10F and 10H converge via a three-way valve and connect to the air control box 1. When the air control box ventilates these pipes, the pistons in middle cylinders 3A and 3B retract. Air pipes 10J and 10M meet via a three-way valve and connect to air control box 1. When the air control box ventilates these pipes, the pistons of front cylinders 4A and 4B retract. Air pipes 10K and 10L meet via a three-way valve and connect to air control box 1. When the air control box ventilates these pipes, the pistons of front cylinders 4A and 4B extend.

[0020] A waist-shaped hole is cut in the middle of the horizontal plate 6. The piston rod of the middle cylinder 3 passes through the waist-shaped hole and can move in the hole. The head of the piston rod is connected to the floating joint 7. The other end of the floating joint 7 is fixed on the fixed plate 8, and the fixed plate 8 is welded to the front section plate 12.

[0021] The working principle of the automatic drilling geotechnical static penetration probe provided by the utility model is as follows:

[0022] First, insert the structure into the soil. The air pipe at the rear of the structure extends through the soil and connects to the air control box 1 above ground. The other end of the air control box 1 is connected to a gas cylinder 15, which contains compressed air. Pressing the start switch on the air control box 1 applies air pressure through the air pipes 10B and 10C, causing the piston rods of the rear cylinders 2A and 2B to pop out to the sides, causing the rear end of the rear section plate 11 to open to the sides, thus achieving anchoring in the soil.

[0023] The air control box 1 applies air pressure through the 10E and 10G air pipes, and the piston rods of the middle cylinders 3A and 3B pop forward. Since the rear part has been anchored, the front section plate 12, the pointed head 13 and the pressure sensor 14 will be inserted into the soil to a certain depth. Then the pressure sensor 14 measures the resistance value and transmits it to the computer through the data line for recording;

[0024] Air pressure is applied to the air control box 1 through the 10A and 10D air pipes, causing the piston rods of the rear cylinders 2A and 2B to retract and the rear segment plate 11 to merge. Simultaneously, air pressure is applied through the 10K and 10L air pipes, causing the piston rods of the front cylinders 4A and 4B to pop out to the sides, and the front segment plate 12 to open for anchoring.

[0025] Air control box 1 applies air pressure through air pipes 10F and 10H, causing the piston rods of middle cylinders 3A and 3B to retract. Since the front section is already anchored, retracting the piston rods also pulls the rear section forward. Air control box 1 then applies air pressure through air pipes 10J and 10M, causing the piston rods of front cylinders 4A and 4B to retract, and the front section plate 12 to merge, completing one cycle.

[0026] The air control box 1 then automatically repeats steps 1-4 to achieve automatic drilling underground. At the same time, the pressure sensor 14 collects soil resistance in real time to achieve the static penetration test.

[0027] Compared with related technologies, the automatic drilling geotechnical static penetration probe provided by the present invention has the following beneficial effects:

[0028] The utility model provides an automatically drilling geotechnical static penetration probe, which can automatically complete penetration underground without a reaction force device, solving the problem that when a reaction force device is set up on extremely soft ground such as lakes, swamps, and silt, the ground cannot provide the instrument with sufficient reaction force and support force, resulting in failure to penetrate.

[0029] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic drilling geotechnical static penetration probe, characterized in that: include: A pointed head, one side of the pointed head is threadedly connected with a pressure sensor, and the side of the pressure sensor away from the pointed head is threadedly connected with a vertical plate, two rear section plates and two front section plates are symmetrically welded on the vertical plate, the two rear section plates are each provided with a rear cylinder fixedly mounted on the vertical plate, the two front section plates are each provided with a front cylinder fixedly mounted on the vertical plate, a horizontal plate is provided on the side of the rear section plate close to the front section plate, and two middle cylinders are symmetrically provided on the side of the horizontal plate close to the rear section plate, the piston rod of the middle cylinder passes through the horizontal plate and is connected with a floating connector, the same fixed plate is fixedly mounted on the two floating connectors, the fixed plate is fixedly connected to the two front section plates, the rear cylinder, the middle cylinder and the front cylinder are connected to the same air control box, and the air control box is connected to a gas cylinder.

2. The automatic drilling geotechnical static penetration probe according to claim 1, characterized in that: The rear cylinder and the front cylinder are both thin cylinders, and the middle cylinder is a pen-shaped cylinder.

3. The automatic drilling geotechnical static penetration probe according to claim 1, characterized in that: The rear cylinder, the middle cylinder and the front cylinder are all provided with gas joints, and the gas joints are all connected with air pipes.

4. The automatic drilling geotechnical static penetration probe according to claim 1, characterized in that: The horizontal plate is provided with a waist-shaped hole, and the piston rod of the middle cylinder passes through the waist-shaped hole and is slidably connected with the inner wall of the waist-shaped hole.

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