CN209820923U - Full-flow penetrometer with float-shaped probe - Google Patents
Full-flow penetrometer with float-shaped probe Download PDFInfo
- Publication number
- CN209820923U CN209820923U CN201920492363.XU CN201920492363U CN209820923U CN 209820923 U CN209820923 U CN 209820923U CN 201920492363 U CN201920492363 U CN 201920492363U CN 209820923 U CN209820923 U CN 209820923U
- Authority
- CN
- China
- Prior art keywords
- float
- shaped probe
- pressure sensor
- cylindrical metal
- probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000523 sample Substances 0.000 title claims abstract description 47
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 28
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000035515 penetration Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007634 remodeling Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a full flow penetrometer of float-shaped probe, which belongs to the technical field of construction engineering. The full-flow penetrometer mainly comprises a float-shaped probe, a rigid thin rod, a cylindrical metal shell, a pressure sensor and a base. For soil with lower strength, a detention area is formed at the upper part of the probe when the conventional T-bar is pulled out, so that the soil can not flow on the surface of the probe completely, and the test result is influenced. Therefore, the float-shaped probe is adopted, and the end part of the float-shaped probe is arc-shaped, so that the soil body can flow on the surface of the probe when the penetrometer is pulled out, the accuracy of the test is improved, meanwhile, the penetrometer is simple and convenient to test the strength of the soil body, and the test flow and the test period can be greatly shortened.
Description
Technical Field
The utility model belongs to the technical field of the construction engineering, a full flow penetrometer of float-shaped probe is related to.
Background
The full-flow penetrometer is a novel strength testing element which is emerging in recent years, and is widely applied to in-situ testing of ocean soft soil and soil sample testing of geotechnical centrifugal models at home and abroad. The method has the advantages that the overlaying pressure does not need to be corrected, the continuous shearing strength of the soil body can be obtained, the strict plastic decomposition exists in the full-flow mechanism in the injection process, the soft clay remodeling resistance can be quickly obtained through a cyclic injection test, and the like. Spherical probes or cylindrical probes are generally used. The probe is penetrated into the soil body to be measured to obtain the initial penetration resistance, the soil body is pulled out to obtain the initial pull-out resistance, and the circular penetration and pull-out can obtain the remodeling penetration resistance, so that the sensitivity of the soil body is evaluated. For the soil body with lower strength, the soil body can flow on the surface of the probe in the process of penetration to obtain more accurate penetration resistance, but when the soil body is pulled out, because the soil body has lower strength, a part of detention area can exist on the upper part of the probe, and the area is not covered by the soil body, namely, the soil body is considered not to flow on the surface of the probe in the process of pulling out, so that the measurement results of the soil body pulling-out resistance and the remolding resistance can be greatly influenced, and the estimation of the soil body sensitivity can be influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a full flow penetrometer of float shape probe has overcome because the lower district that appears being detained on probe upper portion that leads to of soil body intensity, can not take place the full flow and influence soil body strength test accuracy. The device adopts the float-shaped probe, so that the soil body can generate full flow on the surface of the probe in the processes of pulling out and circulating the soil body with lower strength, thereby improving the accuracy of the test result.
The technical scheme of the utility model:
a full-flow penetrometer of a float-shaped probe comprises a float-shaped probe 1, a rigid thin rod 2, a cylindrical metal shell 3, a pressure sensor 6 and a base 7; one end of the rigid thin rod 2 is in threaded connection with the float-shaped probe 1, and the other end of the rigid thin rod is connected with the pressure sensor 6 through a bolt 4; a layer of cylindrical metal shell 3 is sleeved outside the rigid slender rod 2 and the pressure sensor 6, and a 1mm gap is reserved between the cylindrical metal shell 3 and the rigid slender rod 2, so that the friction between the cylindrical metal shell 3 and the rigid slender rod 2 is prevented from influencing the test result. The inner surface and the outer surface of the cylindrical metal shell 3 are smooth, and the distance of 1-2mm is kept between the cylindrical metal shell and the tail end of the float-shaped probe 1; the bottom of the cylindrical metal shell 3 positioned at the end part of the pressure sensor 6 is provided with a base 7, and the base 7 is fixed on the motor; one side of the cylindrical metal shell 3 sleeved outside the pressure sensor 6 is provided with a groove for leading out the outer connector lug 5 of the pressure sensor.
The float-shaped probe 1 is made of aluminum.
The cylindrical metal shell 3 is made of steel.
The base 7 is fixed on the motor through a base screw hole 8 and a pressure sensor connecting bolt 9.
When testing soil body intensity, open the motor, make the full flow penetrometer of float shape probe penetrate the soil body with the constant speed is perpendicular, and the penetration resistance can be transmitted to pressure sensor from the float shape probe through the thin pole of rigidity, and pressure sensor exports with the form of the signal of telecommunication.
The utility model has the advantages that: when the traditional T-bar is used for testing the soil body with lower strength, a detention area can be formed at the upper part of the probe in the pulling-out and circulating processes, and the soil body can not flow on the surface of the probe completely, so that the test result is influenced. The utility model discloses a float-shaped probe can make the soil body extract and the surface of endless in-process at the probe flows entirely, makes the result of test more accurate. Simultaneously, the utility model discloses, only by operating personnel control computer, alright realize the penetration of probe, data signal's collection has shortened experimental operation flow and test cycle greatly.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention;
fig. 2 is a bottom view of the present invention;
FIG. 3 is a side view of the float-shaped probe of the present invention;
in the figure: 1 float-shaped probe; 2 rigid slender rod; 3 a cylindrical metal housing; 4, bolts; 5, an external connector lug of the pressure sensor; 6 a pressure sensor; 7, a base; 8, base screw holes; and 9, connecting the pressure sensor with the screw hole.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
In fig. 1, the rigidity of the rigid thin rod 2 is large enough, and two ends of the rigid thin rod are processed by threads, so that one end of the rigid thin rod 2 is in threaded connection with the tail end of the float-shaped probe 1, the other end of the rigid thin rod is connected with a pressure sensor 6 through a connecting bolt 4, and the pressure sensor 6 adopts a tension-compression sensor. A layer of cylindrical metal shell 3 is sleeved on the outer sides of the rigid slender rod 2 and the pressure sensor 6, and a 1mm gap is reserved between the cylindrical metal shell 3 and the rigid slender rod 2, so that friction between the rigid slender rod 2 and the cylindrical metal shell 3 is prevented from generating, and the accuracy of the test is prevented from being influenced. And the inner and outer surfaces of the cylindrical metal housing 3 are smooth to reduce the influence of the outside frictional resistance and the inside friction. The cylindrical metal shell 3 is spaced 1-2mm away from the end of the float-shaped probe 1, so that the pressure sensor 6 can effectively measure data.
In fig. 2, the base 7 is fixed on the motor through the base screw hole 8 and the pressure sensor connecting bolt 9, the motor is connected with the computer, the motor can be controlled through the computer, the full-flow penetrometer of the float-shaped probe is enabled to be penetrated into and pulled out of the soil body, and data signals are collected by the pressure sensor 6 in the penetrating and pulling-out processes and fed back to the computer.
Claims (5)
1. A full-flow penetrometer with a float-shaped probe is characterized by comprising a float-shaped probe (1), a rigid thin rod (2), a cylindrical metal shell (3), a pressure sensor (6) and a base (7); one end of the rigid thin rod (2) is in threaded connection with the float-shaped probe (1), and the other end of the rigid thin rod is connected with the pressure sensor (6) through a bolt (4); a layer of cylindrical metal shell (3) is sleeved outside the rigid thin rod (2) and the pressure sensor (6), and a 1mm gap is reserved between the cylindrical metal shell (3) and the rigid thin rod (2) to prevent friction between the rigid thin rod and the rigid thin rod from influencing the test result; the inner surface and the outer surface of the cylindrical metal shell (3) are smooth, and the distance of 1-2mm is kept between the cylindrical metal shell and the tail end of the float-shaped probe (1); a base (7) is arranged at the bottom of the cylindrical metal shell (3) positioned at the end part of the pressure sensor (6), and the base (7) is fixed on the motor; one side of the cylindrical metal shell (3) sleeved outside the pressure sensor (6) is provided with a groove for leading out the outer connector lug (5) of the pressure sensor.
2. The full-flow penetrometer with the float-shaped probe according to claim 1, characterized in that the float-shaped probe (1) is made of aluminum.
3. The full-flow penetrometer for a float-shaped probe according to claim 1 or 2, characterized in that the cylindrical metal housing (3) is made of steel.
4. The full-flow penetrometer with a float-shaped probe according to claim 1 or 2, characterized in that the base (7) is fixed on the motor through a base screw hole (8) and a pressure sensor connecting bolt (9).
5. The full-flow penetrometer with a float-shaped probe according to claim 3, characterized in that the base (7) is fixed on the motor through a base screw hole (8) and a pressure sensor connecting bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920492363.XU CN209820923U (en) | 2019-04-12 | 2019-04-12 | Full-flow penetrometer with float-shaped probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920492363.XU CN209820923U (en) | 2019-04-12 | 2019-04-12 | Full-flow penetrometer with float-shaped probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820923U true CN209820923U (en) | 2019-12-20 |
Family
ID=68879671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920492363.XU Expired - Fee Related CN209820923U (en) | 2019-04-12 | 2019-04-12 | Full-flow penetrometer with float-shaped probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209820923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975107A (en) * | 2019-04-12 | 2019-07-05 | 大连理工大学 | A kind of full flowing penetrometer of float for fishing shape probe |
-
2019
- 2019-04-12 CN CN201920492363.XU patent/CN209820923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975107A (en) * | 2019-04-12 | 2019-07-05 | 大连理工大学 | A kind of full flowing penetrometer of float for fishing shape probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20210412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |