Auxiliary counting device for dynamic penetration test of heavy cone
By designing an auxiliary counting device for heavy-duty cone power contact detection test, the indicator ring, limit ring, adjustment legs and scale rod are used to achieve simultaneous recording of hammer number and penetration degree, and the data in the prior art are solved The problem of insufficient recording improves the efficiency and safety of the test.
Patent Information
- Application Number
- CN202420553508.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The prior art lacks an auxiliary counting device that can simultaneously record the number of hammers and penetrations in heavy-duty cone dynamic touch detection tests, resulting in insufficient accuracy and low efficiency in data recording.
An auxiliary counting device including an indicator ring, a limit ring, an adjustment leg and a scale rod is designed. The number of hammer strikes is recorded by the indicator ring, the limit ring prevents the drill rod from being offset, and the adjustment leg ensures the level of the balance platform. The rod records the penetration degree, and realizes the recording of the number of hammers and penetration degrees simultaneously.
It improves the accuracy and efficiency of the test data, reduces safety risks, and ensures the accuracy and repeatability of the measurement results.
Smart Images
Figure CN222213393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring equipment, in particular to a heavy-duty cone dynamic penetration test auxiliary counting device. Background Art
[0002] The heavy cone dynamic penetration test is often used in geotechnical engineering investigation and foundation testing. It uses a 63.5kg drop hammer to drive a standard cone-shaped probe into the original soil or treated soil at a drop distance of 76cm. The number of hammer blows or penetration rate every 10cm is recorded to evaluate the engineering properties of the original soil or treated soil.
[0003] Although there are auxiliary counting devices for heavy cone dynamic penetration test in current projects, sometimes the cone dynamic penetration test needs to provide parameters such as dynamic penetration resistance (calculated by parameters such as penetration degree) and penetration degree. However, there is no auxiliary counting device for recording the number of hammer blows and penetration degree in the current project. Utility Model Content
[0004] The utility model aims to provide a heavy-duty cone dynamic penetration test auxiliary counting device to solve the technical problems in the prior art. The utility model can be used for recording the number of hammer blows and the penetration rate in the cone dynamic penetration test at the same time.
[0005] The utility model provides a heavy-duty cone dynamic penetration test auxiliary counting device, comprising:
[0006] An auxiliary counting device, wherein a channel is formed in the auxiliary counting device for the drilling rig drill rod to pass through, and the auxiliary counting device comprises an indicator ring and a limit ring;
[0007] A balancing platform, the balancing platform being arranged at one end of the auxiliary counting device;
[0008] An adjusting leg, wherein the adjusting leg is arranged on the bottom wall of the balancing platform;
[0009] An indicator buckle, which is detachably arranged on a drill rod of a drilling rig;
[0010] A scale rod is vertically arranged on one side of the auxiliary counting device.
[0011] Preferably, two limit rings are provided, and the two limit rings are arranged opposite to each other at two ends of the auxiliary counting device.
[0012] Preferably, five indicator rings are provided, and the five indicator rings are sequentially arranged at intervals between two limit rings.
[0013] Preferably, the five indicator rings are spaced 10 cm apart, and the indicator ring close to the balancing platform is spaced 10 cm apart from the balancing platform.
[0014] Preferably, the adjustment leg comprises a first leg and a second leg;
[0015] A strip-shaped hole is provided on the surface of the first leg, and the second leg can be retracted and arranged inside the first leg;
[0016] The second leg is detachably provided with a bolt, one end of the bolt extends to the outside of the strip-shaped hole, and a knob is provided on the outside of the bolt.
[0017] Preferably, the diameter of the limiting ring is smaller than that of the indicating ring, and a plurality of protruding bumps are arranged on the inner side of the limiting ring.
[0018] Preferably, a horizontal bubble is provided on the balancing platform.
[0019] Preferably, a gasket is provided on a side of the knob close to the strip-shaped hole.
[0020] Compared with the prior art, by setting indicator rings, each indicator ring is 10 cm apart, which eliminates the need for workers to use a ruler to mark, ensuring high accuracy of test data and high test efficiency. By setting a scale rod, it is convenient to record the number of hammer blows in the heavy cone dynamic penetration test at any depth. It can be used to record the number of hammer blows and penetration rate in the test at the same time. The measurement results are accurate and can be reused.
[0021] By setting a limit ring, the drill rod of the drill rig can be assisted in positioning to prevent it from shaking during hammering and affecting the test accuracy. The protrusion set on the inner ring of the limit ring can further play a limiting role, so that workers do not have to hold the drill rod by hand to keep it centered, reducing safety hazards.
[0022] By setting adjustable legs, the length of the legs can be adjusted separately to balance the balance platform. Compared with a single leg structure, the adjustable legs can achieve fine-tuning within a subtle range to reduce errors, and the second leg can be retracted inside the first leg for easy storage. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of the utility model;
[0024] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0025] Figure 3 It is a structural schematic diagram of the adjustable legs in the utility model;
[0026] Figure 4 It is a schematic diagram of the use state of the utility model.
[0027] Description of reference numerals:
[0028] 1. Auxiliary counting device; 101. Indicator ring; 102. Balance table; 103. Limiting ring; 104. Bump;
[0029] 2. Adjusting legs; 201. First leg; 202. Second leg; 203. Knob; 204. Gasket; 205. Strip hole;
[0030] 3. Indicator buckle; 4. Scale rod; 5. Level bubble. DETAILED DESCRIPTION
[0031] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0032] See also Figure 1 and Figure 4 The embodiment of the utility model provides a heavy-duty cone dynamic penetration test auxiliary counting device, comprising:
[0033] An auxiliary counting device 1, wherein a passage for the drill rod of the drilling rig to pass through is formed in the auxiliary counting device 1, and the auxiliary counting device 1 comprises an indicator ring 101 and a limit ring 103;
[0034] A balancing platform 102, which is arranged at one end of the auxiliary counting device 1; an adjusting leg 2 is arranged on the bottom wall of the balancing platform 102;
[0035] The indicator buckle 3 is detachably arranged on the drill rod of the drilling rig. The auxiliary counting device 1, the balance table 102, and the adjustment leg 2 are welded with stainless steel and can be reused;
[0036] The measuring tool used in the heavy cone dynamic penetration test is an existing technology, which includes a drill rod, a core hammer is arranged on the top of the drill rod, a hammer pad is arranged below the core hammer, and a probe is arranged at the bottom of the drill rod.
[0037] First, dig a borehole in the original soil or treated soil to be tested, and set up the auxiliary counting device 1 just above the borehole. By adjusting the adjusting legs 2, the whole measuring device can be leveled and accurately positioned. The drill rod of the drilling rig passes through the channel of the auxiliary counting device 1 and goes deep into the borehole. The indicator buckle 3 is installed on the drill rod of the drilling rig. With the impact of the core hammer above the drill rod of the drilling rig, the indicator buckle 3 will move down to the positions of different indicator rings 101 in turn. The number of hits at different indicator rings 101 points can be recorded respectively to measure the number of hits in the heavy cone dynamic penetration test, thereby completing the recording of the number of hammer hits in the cone dynamic penetration test.
[0038] See also Figure 1 and Figure 4The device also includes a scale rod 4, which is vertically arranged on one side of the auxiliary counting device 1. The scale rod 4 adopts a module of 50 cm. The drill rod length is usually 1 meter, 2 meters, and 3 meters, which is convenient for recording the number of hammer blows in the heavy cone dynamic penetration test at any depth. The auxiliary counting device 1 has two vertical poles, and one side of the vertical pole can be set as the scale rod 4. When the penetration degree needs to be recorded, the distance that the indicator buckle 3 moves downward can be recorded through the scale rod 4 to accurately record the penetration degree of each blow, and the dynamic penetration resistance can be calculated according to the standard formula.
[0039] In addition, the scale rod 4 and the auxiliary counting device 1 can be welded into a whole. Since the position of the scale rod 4 is fixed, the measurement data can be guaranteed to be more accurate during the test.
[0040] In the embodiment provided in the present application, the indicator buckle 3 adopts a detachable structure. As a preferred method, a rubber indicator buckle or a snap-on structure can be used, which is convenient for disassembly and reusable. Since the depth of each test is not fixed, the position of the indicator buckle 3 is not fixed. The use of a detachable indicator buckle 3 can adapt to a variety of test conditions.
[0041] Example 1
[0042] See also Figure 1 and Figure 4 , two limit rings 103 are provided, and the two limit rings 103 are relatively arranged at the two ends of the auxiliary counting device 1. Since the auxiliary counting device 1 has a certain length, the movable range in the channel is large, and each strike is manually operated and cannot be completely vertical, so there is a risk that the drill rod of the drilling rig will be slightly offset in the channel. By arranging the limit rings 103 at both ends of the auxiliary counting device 1, the drill rod of the drilling rig can be limited, effectively preventing the drill rod from being offset in the channel, and increasing the accuracy of the test results.
[0043] Example 2
[0044] See also Figure 1-2 The diameter of the limit ring 103 is smaller than that of the indicator ring 101. In the embodiment provided in the present application, the diameter of the limit ring 103 is smaller than that of the indicator ring 101, which plays the role of narrowing the entrance and exit of the channel at both ends of the auxiliary counting device 1, and can better achieve the limiting function. During the test, the drill rod of the drilling rig will not touch the indicator ring 101, which effectively reduces the error of the test data.
[0045] See also Figure 2A plurality of protruding bumps 104 are provided on the inner side of the limit ring 103, which can center the drill rod of the drilling rig. In the embodiment provided in the present application, three bumps 104 are provided, and the three bumps 104 are distributed at 120 degrees. It should be noted that the bumps 104 in the present application do not contact the drill rod of the drilling rig, and the drill rod of the drilling rig can still pass freely through the channel of the auxiliary counting device 1. The purpose of setting the bumps 104 is to further limit the range of shaking of the drill rod of the drilling rig and reduce errors. At the same time, during the test, workers can ensure that the drill rod is centered without holding it with their hands, thereby reducing safety hazards.
[0046] See also Figure 1 and Figure 4 , there are five indicator rings 101, and the five indicator rings 101 are sequentially spaced between the two limit rings 103;
[0047] The five indicator rings 101 are spaced 10 cm apart, and the indicator ring 101 close to the balance table 102 is spaced 10 cm apart from the balance table 102. The fixed distances between the five indicator rings 101 and the balance table 102 are 10 cm, 10 cm, 10 cm, 10 cm, and 10 cm, respectively, eliminating the need for workers to use a ruler to mark, ensuring high accuracy of test data and high test efficiency.
[0048] See also Figure 3 , the adjusting leg 2 includes a first leg 201 and a second leg 202;
[0049] A strip-shaped hole 205 is provided on the surface of the first leg 201, and the second leg 202 is retractably disposed inside the first leg 201;
[0050] A bolt is detachably provided on the second leg 202 , one end of the bolt extends to the outside of the strip hole 205 , and a knob 203 is provided on the outside of the bolt.
[0051] The opening length of the strip hole 205 can limit the sliding range of the bolt. The length of each adjusting leg 2 can be adjusted arbitrarily by adjusting the knob 203 to ensure the horizontality of the entire device and increase the reliability of the test. When it is necessary to increase the length of the adjusting leg 2, loosen the knob 203, and relative movement can occur between the first leg 201 and the second leg 202. When the appropriate length is adjusted, tighten the knob 203 to fix the length of the first leg 201 and the second leg 202 to prevent the two from moving. This adjustment method can be used to fine-tune the length of the adjusting leg 2 to ensure that the balance platform 102 always remains in a horizontal state.
[0052] See also Figure 2 There are three adjusting legs 2, and the three adjusting legs 2 are arranged at 120 degree intervals at the bottom of the balancing platform 102, which can play a role of stable support.
[0053] See also Figure 2 A level bubble 5 is provided on the balancing platform 102. By adjusting the legs 2, it can be determined whether the adjusted balancing platform 102 is in a horizontal state through the level bubble 5 on the balancing platform 102, thereby increasing the stability of the test device.
[0054] See also Figure 3 A gasket 204 is provided on one side of the knob 203 close to the strip hole 205. In the embodiment provided in the present application, a gasket 204 is provided between the knob 203 and the strip hole 205. The gasket 204 increases the friction force to ensure the stability between the first leg 201 and the second leg 202.
[0055] Working principle: When conducting a heavy cone dynamic penetration test, first dig a borehole in the original soil or treated soil to be tested, set up the auxiliary counting device 1 just above the borehole, insert the second leg 202 deep into the soil, observe the position of the horizontal bubble 5, and adjust the length between the first leg 201 and the second leg 202 by turning the knob 203 to make the horizontal bubble 5 in a horizontal state. At this time, the auxiliary counting device 1 is in a horizontal and fixed state;
[0056] The indicator buckle 3 is installed on the drill rod of the drilling rig and is level with the center position of the topmost indicator ring 101. The hammer pad is hit with a core hammer. The drill rod of the drilling rig continues to penetrate into the soil layer to be tested, and the position of the indicator buckle 3 drops accordingly. The number of hammer strikes of the indicator buckle 3 at the center position of each indicator ring 101 and the center position of the balance table 102 is recorded respectively to obtain the number of hammer strikes of the test;
[0057] If it is still necessary to record the number of hammer blows or penetration below the test depth, remove the indicator buckle 3 and reinstall it at the center of the indicator ring 101 at the top of the drill pipe of the drilling rig to repeat the test. When it is necessary to record the penetration, the penetration of each blow can be accurately recorded according to the downward movement distance of the indicator buckle 3, that is, the number of centimeters on the scale rod 4, and the dynamic penetration resistance can be calculated according to the standard formula. Therefore, the device can be used for recording the number of hammer blows and penetration in the cone dynamic penetration test at the same time.
[0058] The above describes in detail the structure, features and effects of the utility model based on the embodiments shown in the drawings. The above is only a preferred embodiment of the utility model, but the utility model is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the utility model, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and the drawings, should be within the protection scope of the utility model.
Claims
1. A heavy-duty cone dynamic penetration test auxiliary counting device, characterized in that: include: An auxiliary counting device, wherein a channel is formed in the auxiliary counting device for the drilling rig drill rod to pass through, and the auxiliary counting device comprises an indicator ring and a limit ring; A balancing platform, the balancing platform being arranged at one end of the auxiliary counting device; An adjusting leg, wherein the adjusting leg is arranged on the bottom wall of the balancing platform; An indicator buckle, which is detachably mounted on a drill rod of a drilling rig; A scale rod is vertically arranged on one side of the auxiliary counting device.
2. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: There are two limit rings, which are arranged opposite to each other at two ends of the auxiliary counting device.
3. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: There are five indicator rings, and the five indicator rings are sequentially arranged between two limiting rings at intervals.
4. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: The five indicator rings are spaced 10 cm apart, and the indicator ring close to the balance platform is spaced 10 cm apart from the balance platform.
5. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: The adjusting leg comprises a first leg and a second leg; A strip-shaped hole is provided on the surface of the first leg, and the second leg can be retracted and arranged inside the first leg; The second leg is detachably provided with a bolt, one end of the bolt extends to the outside of the strip-shaped hole, and a knob is provided on the outside of the bolt.
6. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: The diameter of the limiting ring is smaller than that of the indicating ring, and a plurality of protruding bumps are arranged on the inner side of the limiting ring.
7. A heavy-duty cone dynamic penetration test auxiliary counting device according to claim 1, characterized in that: A horizontal bubble is arranged on the balancing platform.
8. The heavy-duty cone dynamic penetration test auxiliary counting device according to claim 5, characterized in that: A gasket is arranged on one side of the knob close to the strip-shaped hole.