CN213571872U - Ultra-light cone dynamic sounding device - Google Patents
Ultra-light cone dynamic sounding device Download PDFInfo
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- CN213571872U CN213571872U CN202022095994.3U CN202022095994U CN213571872U CN 213571872 U CN213571872 U CN 213571872U CN 202022095994 U CN202022095994 U CN 202022095994U CN 213571872 U CN213571872 U CN 213571872U
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Abstract
An ultra-light cone dynamic sounding device comprises a dynamic sounding hammer, a cone sounding probe, and a sounding rod connecting the sounding hammer and the sounding probe. The dynamic sounding hammer comprises a punching hammer, a guide rod penetrating through the center of the punching hammer and a hammer pad connecting the guide rod and the sounding rod. Handles for carrying and holding operations are symmetrically arranged at two ends of the core-through hammer. The conical touch probe comprises a cylindrical section and a conical section, wherein the cylindrical section is connected with the touch probe rod, and the conical section is used for testing. The whole set of the device has the weight of about 6kg, and compared with the weight of about 30kg of the existing light cone dynamic sounding test device, the device has the advantages that the weight of the device is greatly reduced, the device is lighter and more portable, the carrying and the operation and the use are easier, and meanwhile, the device has similar test effects and is more suitable for the in-situ test needs of the line investigation in remote mountainous areas; the reconnaissance efficiency and quality of line reconnaissance in remote areas can be greatly improved, the manufacturing cost is reduced, and the method has great significance for popularizing the application of the cone dynamic sounding device.
Description
Technical Field
The utility model relates to a circular cone power sounding device, concretely relates to ultra-light circular cone power sounding device.
Background
The cone dynamic penetration test is one of the conventional in-situ test methods in geotechnical engineering investigation. Through a cone dynamic penetration test, physical and mechanical property indexes of foundation soil, such as parameters of compactness, foundation bearing capacity, deformation indexes and the like, and single-pile bearing capacity can be obtained; the uniformity of the foundation soil can be judged; has dual functions of drilling and testing; the method can be used for exploring soil caves, sliding surfaces, soft and hard soil layer interfaces and rock weathering interfaces; the foundation treatment effect can be detected.
At present, projects such as roads, railways, power lines and the like are gradually increased, the earlier-stage exploration of the line projects often passes through mountainous areas with inconvenient traffic, exploration and test equipment needs to be carried to the site through manpower, and overweight equipment is difficult to carry and apply. The cone dynamic penetration test is one of conventional in-situ test methods in geotechnical engineering investigation and is also often required to be used for the investigation of the line engineering, but the characteristics of heavy experimental equipment seriously affect the investigation efficiency, quality and cost of the line engineering, and also seriously hinder the popularization and application of the test method. The method for surveying the lines in the remote mountain areas basically mainly adopts investigation and experience judgment sections, has large randomness, and results obtained by engineers with different experiences are often very different and lack of scientific rigor.
Disclosure of Invention
The utility model aims to solve the technical problem that the prior art is not enough overcome, provide a portability, easily operation. The cone dynamic sounding device.
The utility model provides a technical scheme that its technical problem adopted is, an ultra-light circular cone power sounding device, including power touch probe hammer, circular cone touch probe, even touch probe hammer and touch probe's feeler lever. The method is characterized in that: the dynamic sounding hammer comprises a punching hammer, a guide rod penetrating through the center of the punching hammer and a hammer pad connecting the guide rod and the sounding rod. Handles for carrying and holding operations are symmetrically arranged at two ends of the core-through hammer. The conical touch probe comprises a cylindrical section and a conical section, wherein the cylindrical section is connected with the touch probe rod, and the conical section is used for testing.
Furthermore, the mass of the punching hammer is 2.5-3kg, and the falling distance is 40-60 cm.
Furthermore, the outer diameter of the cylindrical section of the conical contact probe is phi 14-phi 20 mm.
Further, the cone angle of the conical section of the conical contact probe is 60 degrees.
Furthermore, the outer diameter of the feeler lever is phi 8-phi 10 mm.
The whole set of the device has the weight of about 6kg, and compared with the weight of about 30kg of the existing light cone dynamic sounding test device, the device has the advantages that the weight of the device is greatly reduced, the device is lighter and more portable, the carrying and the operation and the use are easier, and meanwhile, the device has similar test effects and is more suitable for the in-situ test needs of the line investigation in remote mountainous areas; the method can improve the investigation efficiency and quality of line investigation in remote areas and reduce the manufacturing cost, and has great significance for popularizing the application of the cone dynamic sounding device.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-dynamic feeler hammer, 11-piercing hammer, 111-handle, 12-guide rod, 13-hammer pad, 2-feeler lever, 3-cone feeler, 31-cylindrical section of cone feeler, 32-conical section of cone feeler.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the present embodiment includes a powered stylus 1, a conical stylus 3, and a stylus rod 2 connecting the stylus and stylus. The power feeler hammer 1 comprises a penetrating hammer 11, a guide rod 12 penetrating through the hammer core of the penetrating hammer 11 and a hammer pad 13 connecting the guide rod 12 and the feeler lever 2. Handles 111 for carrying and holding operations are symmetrically arranged at two ends of the core-through hammer 11. The cone contact probe 3 comprises a cylindrical section 31 connected with the feeler lever 2 and a conical section 32 for testing.
The mass of the piercing hammer 11 is 2.5kg, the drop distance is 50cm, the outer diameter of the cylindrical section 31 of the conical contact probe is phi 20mm, the cone angle of the conical section 32 of the conical contact probe is 60 degrees, and the outer diameter of the contact probe rod 2 is phi 10 mm.
The weight of the cone dynamic penetration test device body and the 5m penetration rod matched with the cone dynamic penetration test device is about 6kg, and compared with the weight of about 30kg of the existing light cone dynamic penetration test device, the weight of the cone dynamic penetration test device is greatly reduced. The device has similar test effects, is lighter, easier to carry and operate and use, and is more suitable for the requirements of in-situ test of line survey in remote mountainous areas.
The application range of the test by using the utility model is the in-situ test method suitable for clay, silty clay, silt and fine sand soil layers.
Utilize the utility model discloses carry out experimental method:
firstly, drilling to a test soil layer elevation by using a portable drilling tool, then continuously sounding the soil layer, enabling a penetrating hammer to freely fall for 50cm to vertically drive a sounding rod into the soil layer, and recording the hammering number N of 30cm per soil layer2.5When N is present2.5>The test can be stopped when the number of hammering exceeds 50 at 100 cm penetration or 15cm penetration.
The indexes of the result of the penetration test are as follows: the number of sounding hammers and the dynamic penetration resistance (q)d)。
Strike number of penetration of 30cm into the soil (N)2.5) As a sounding indicator.
(q) dynamic penetration resistanced) This means the dynamic penetration resistance per unit area of the probe. The dynamic penetration resistance calculation formula is the Dutch formula which is most widely applied at home and abroad at present, and is recommended by the provisions and explanations of geotechnical engineering investigation Specifications and geotechnical test regulations of the department of Water conservancy and electric Power in China.
In the formula qd-dynamic penetration resistance (MPa);
m-drop weight mass (kg);
m-mass (kg) of the conical probe and rod system (including probe, guide rod, etc.);
g-gravitational acceleration;
h-drop height (m);
a-area of the cross section of the conical probe (cm)2)；
e-penetration per stroke.
The utility model discloses a brand-new test equipment, no ready experience data is available. The dynamic penetration resistance can be compared with the existing light cone dynamic sounding (see table 1 below), so that partial empirical data of the light cone dynamic sounding can be adopted. According to the comparison result, the dynamic penetration resistance measured by the ultra-light cone dynamic penetration test is larger under the condition of the same position and the same hammering number; the hammering number of the ultra-light cone dynamic penetration test is smaller if the ultra-light cone dynamic penetration test is carried out on the same soil layer and the same position; the penetration capability of the ultra-light cone dynamic penetration test is stronger.
TABLE 1 light and ultra-light cone dynamic penetration resistance contrast table
Use the utility model discloses the reconnaissance efficiency, the quality of promotion remote area circuit reconnaissance that can be very big and reduce the cost, also have very big realistic meaning to promoting circular cone power penetration test's application simultaneously.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present invention, provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (5)
1. An ultra-light cone dynamic sounding device comprises a dynamic sounding hammer, a cone touch probe and a sounding rod which is connected with the sounding hammer and the touch probe; the method is characterized in that: the power sounding hammer comprises a punching hammer, a guide rod penetrating through the center of the punching hammer and a hammer pad connecting the guide rod and the sounding rod; handles for carrying and holding operations are symmetrically arranged at two ends of the core-through hammer; the conical touch probe comprises a cylindrical section and a conical section, wherein the cylindrical section is connected with the touch probe rod, and the conical section is used for testing.
2. The ultra-light cone dynamic sounding device of claim 1, characterized in that: the mass of the punching hammer is 2.5-3.0kg, and the falling distance is 40-60 cm.
3. The ultra-light cone dynamic sounding device of claim 1 or 2, characterized in that: the outer diameter of the cylindrical section of the conical contact probe is phi 14-phi 20 mm.
4. The ultra-light cone dynamic sounding device of claim 1 or 2, characterized in that: the cone angle of the conical section of the conical contact probe is 60 degrees.
5. The ultra-light cone dynamic sounding device of claim 1 or 2, characterized in that: the outer diameter of the feeler lever is phi 8-phi 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022095994.3U CN213571872U (en) | 2020-09-22 | 2020-09-22 | Ultra-light cone dynamic sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022095994.3U CN213571872U (en) | 2020-09-22 | 2020-09-22 | Ultra-light cone dynamic sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213571872U true CN213571872U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022095994.3U Active CN213571872U (en) | 2020-09-22 | 2020-09-22 | Ultra-light cone dynamic sounding device |
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| CN (1) | CN213571872U (en) |
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2020
- 2020-09-22 CN CN202022095994.3U patent/CN213571872U/en active Active
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