CN208309658U - A kind of annular feeler inspection device detecting bucket foundation sinking process side friction - Google Patents
A kind of annular feeler inspection device detecting bucket foundation sinking process side friction Download PDFInfo
- Publication number
- CN208309658U CN208309658U CN201820869176.4U CN201820869176U CN208309658U CN 208309658 U CN208309658 U CN 208309658U CN 201820869176 U CN201820869176 U CN 201820869176U CN 208309658 U CN208309658 U CN 208309658U
- Authority
- CN
- China
- Prior art keywords
- frictional resistance
- probe
- bucket foundation
- sensor
- wall
- 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
Abstract
The utility model discloses a kind of annular feeler inspection devices for detecting bucket foundation sinking process side friction, the present apparatus includes dynamometry feeler lever, truss and probe cylinder, is respectively arranged with lower pressure sensor, outer wall frictional resistance force snesor, inner wall frictional resistance force snesor and sensor for pore water pressure on probe cylinder；The size of micromation keeps annular probe easy to operate in practical applications, and recycling is easy, and has mature operating process；Bucket foundation is not depended on, that the parameter of any depth can be measured as desired, there is considerable flexibility in such a way that truss connection dynamometry feeler lever is arranged in probe cylinder upper end up and down；Annular probe has sensor for pore water pressure, can measure the pore water pressure in the soil body, measurement accuracy is high, and installation cost is low, is easy to promote and apply in engineering.
Description
Technical field
The utility model relates to ocean engineering soil investigation, soil exploration fields, are a kind of detection bucket foundation sinking process side frictions
Annular feeler inspection device.
Background technique
Bucket foundation reduces project amount as a kind of novel offshore platform foundation structure type, since it has, saves
Investment shortens the construction time, is reusable and the advantages that be easy to marine transportation installation, just gradually applied to offshore wind farm
In foundation engineering.In deep-sea ocean engineering structure structure type, force-bearing characteristics, in terms of and shallow sea works
It is very different, it is also different to the demand of Soil Parameters in design and construction.Therefore, the shallow topsoil of abyssal floor is accurately obtained
The intensive parameter of body has particularly important meaning to the security and stability for guaranteeing deep-sea marine structure.Bucket foundation mainly according to
Realize that sinking is in place by inside and outside differential pressure (negative pressure).But the process that bucket foundation negative pressure sinks is extremely complex and more difficult to control, needs
Consider negative pressure and submergence depth, soil pressure inside and outside barrel, pore water pressure inside and outside barrel, outer frictional resistance and cylinder in barrel
Relationship between end resistance, wherein outer frictional resistance in engineering is by this in-situ test of static sounding in practice in barrel
What method obtained, the relationship between the obtained penetration resistance of bevel-type static sounding and shearing strength is more by engineering practice
Experience, because empirical parameter range is larger, selection is improper to be easy to cause calculated result there are large error, is difficult accurately to measure cylinder
Frictional resistance between the sinking watching cylinder soil of type basis, the main reason is that the architectural difference of bucket foundation and common pile foundation,
The factors such as the hollow structure of bucket foundation and negative pressure sinking make side friction of structure during sinking become complicated,
Not only there is outer wall side frictional resistance, there are also inner wall frictional resistances, therefore are difficult accurately to be measured with traditional bevel-type static sounding probe.
In Publication No. CN103266636A, patent name, which is that a kind of in-situ measurement bucket foundation is heavy, passes through end resistance and frictional resistance
Described in the Chinese patent of the device and method of power it is a kind of for realizing to during bucket foundation sinking it is heavy pass through end resistance with
And the device of side friction measurement, the device are by installing drag ring in bucket foundation model and and a series of force snesors
It realizes to the measurement for passing through end resistance and side friction heavy during bucket foundation sinking, exists in practical engineering applications as follows
Limitation: 1, plant bulk is larger, and depends on bucket foundation model, is both needed to the cartridge type bases of customized responses before measurement every time
Plinth model and it related sensor etc. be mounted on model just can be carried out test, inconvenient, recycling is complicated, is unfavorable at the scene
Repeatedly measurement；2, it fathoms limited, fathoming for this device depends entirely on the sheath skirt height of bucket foundation, can not survey
Relevant parameter native in deeper range is obtained, the flexibility of application is poor.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of detection bucket foundation sinking process side
The annular feeler inspection device of frictional resistance determines the shear strength of soil using the present apparatus according to the soil body counter-force measured in testing, quasi-
The really frictional resistance between measurement bucket foundation cylinder soil suffered during the sinking of deep-sea.
The utility model is achieved through the following technical solutions:
A kind of annular feeler inspection device detecting bucket foundation sinking process side friction, including dynamometry feeler lever, truss and spy
Head cylinder, probe cylinder on be respectively arranged with lower pressure sensor, outer wall frictional resistance force snesor, inner wall frictional resistance force snesor and
Sensor for pore water pressure；
The lower pressure sensor is set to truss and probe cylinder junction, for measuring through dynamometry feeler lever to probe
The lower pressure that cylinder applies；
The outer wall frictional resistance force snesor is set on the outer wall of probe cylinder, for measuring between cylinder body outer wall and the soil body
Frictional resistance, each outer wall frictional resistance force snesor are placed equidistant with along probe cylindrical barrel and are located at same level；
The inner wall frictional resistance force snesor is set on the inner wall of probe cylinder, for measuring between cylinder inboard wall and the soil body
Frictional resistance, each inner wall frictional resistance force snesor are placed equidistant with along probe cylindrical barrel and are located at same level；
The sensor for pore water pressure is set in the through-hole on probe cylinder barrel, for measuring the hydraulic pressure of through hole, wherein
The sensor for pore water pressure of half quantity is set to plane locating for outer wall frictional resistance force snesor, the sensor for pore water pressure setting of the other half quantity
The plane locating for inner wall frictional resistance force snesor.
In the above-mentioned technical solutions, the screw thread that is connected with power mechanism is arranged in the upper end of the dynamometry feeler lever.
In the above-mentioned technical solutions, the outer diameter of the dynamometry feeler lever is less than cylinder barrel outer diameter.
In the above-mentioned technical solutions, the truss is connected by connecting screw with the bottom of dynamometry feeler lever.
In the above-mentioned technical solutions, the truss includes 4 vertical bars, and probe cylinder is installed in a manner of equidistantly arranging
On along upper.
In the above-mentioned technical solutions, the quantity of the outer wall frictional resistance force snesor is 2-4.
In the above-mentioned technical solutions, the quantity of the inner wall frictional resistance force snesor is 2-4.
In the above-mentioned technical solutions, the quantity of the sensor for pore water pressure is 4-8.
In the above-mentioned technical solutions, the wall thickness of the probe cylinder is 2-4cm, outer diameter 8-12cm, internal diameter 4-
6cm, a height of 20-30cm.
In the above-mentioned technical solutions, the lower edge of the probe cylinder is set as prong structure to eliminate sinking watching middle-end
The influence of resistance.
It the advantages of the utility model and has the beneficial effect that
The present apparatus realizes the micromation of device while simulating bucket foundation sinking process cylinder soil contact conditions,
Size and conventional static feeler inspection probe are almost the same, and small size determines that annular probe is easy to operate in practical applications, return
Easily, all operating processes are consistent with traditional bevel-type static sounding operation for receiving, there is mature operating process；Completely not
Rely on bucket foundation, the common feeler lever of the annular probe incorporated is combined into a set of static cone penetration equipment with regard to group, do not needed in measurement according to
Rely the sinking in bucket foundation, it, can by way of in probe cylinder upper end setting truss connection dynamometry feeler lever up and down
To measure the parameter of any depth as desired, there is considerable flexibility；Annular probe has sensor for pore water pressure, can be with
The pore water pressure in the soil body is measured, measurement accuracy is high, and installation cost is low, is easy to promote and apply in engineering.
Detailed description of the invention
Fig. 1 is the utility model side structure schematic view.
Fig. 2 is the utility model overlooking structure diagram.
Wherein: 1 is dynamometry feeler lever, and 2 be connecting screw, and 3 be truss, and 4 be lower pressure sensor, and 5 pass for outer wall frictional resistance
Sensor, 6 be cylinder of popping one's head in, and 7 be inner wall frictional resistance force snesor, and 8 be sensor for pore water pressure, and 9 be prong structure.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, combined with specific embodiments below into one
Step illustrates the technical solution of the utility model.
Embodiment 1
A kind of annular feeler inspection device detecting bucket foundation sinking process side friction, including dynamometry feeler lever 1,3 and of truss
Probe cylinder 6 is respectively arranged with lower pressure sensor 4, outer wall frictional resistance force snesor 5, inner wall frictional resistance on probe cylinder and passes
Sensor 7 and sensor for pore water pressure 8；The lower pressure sensor is set to truss and probe cylinder junction, passes through survey for measuring
The lower pressure that power feeler lever applies probe cylinder；The outer wall frictional resistance force snesor is set on the outer wall of probe cylinder, is used for
Measure the frictional resistance between cylinder body outer wall and the soil body；The inner wall frictional resistance force snesor is set on the inner wall of probe cylinder, is used for
Measure the frictional resistance between cylinder inboard wall and the soil body；The sensor for pore water pressure is set in the through-hole on probe cylinder barrel, is used for
Measure the hydraulic pressure of through hole.
The screw thread that is connected with power mechanism is arranged in the upper end of the dynamometry feeler lever.The outer diameter of the dynamometry feeler lever is less than cylinder
Barrel outer diameter.The truss is connected by connecting screw with the bottom of dynamometry feeler lever.The truss includes 4 vertical bars, with etc.
Mode away from arrangement be installed on probe cylinder on along upper.The quantity of the outer wall frictional resistance force snesor is 2, is symmetrically disposed on
Probe cylinder two sides；The quantity of the inner wall frictional resistance force snesor is 2.The quantity of the sensor for pore water pressure is 2, wherein 1
A to be set to plane locating for outer wall frictional resistance force snesor, another is set to plane locating for inner wall frictional resistance force snesor.
Embodiment 2
A kind of annular static sounding probe of accurate detection bucket foundation sinking process side friction, including dynamometry feeler lever,
Truss (symmetrical four), probe cylinder and each sensor being installed on probe cylinder, the probe cylinder is by steel plate
It is made, plate thickness 2cm, outer diameter 8cm, internal diameter 4cm, high 20cm, probe upper end is equipped with truss, for connecting probe and feeler lever, and protects
The card soil body can pass through on the upside of probe cylinder, and probe lower end is fined away the influence to form prong structure 9 to eliminate end resistance, visit
Centriciput installs pore water pressure sensor using Embedded method, and probe inside and outside wall also uses Embedded method symmetrically
Side friction sensor is installed, probe cylinder is connected by truss with cylindrical feeler lever, and feeler lever diameter is less than outside annular end
Diameter.Lower pressure sensor is installed in feeler lever lower end, lower pressure sensor is resistance-type force snesor or Optical Fiber Force Sensor.It visits
Bar upper end is provided with screw thread, can be connected with static sounding feeler lever.
Embodiment 3
Utilizing a kind of above-mentioned annular static sounding probe progress of precisely detection bucket foundation sinking process side friction
When work, carry out as steps described below:
(1) device, according to setting speed, is at the uniform velocity pressed into the underwater soil body under the effect of static pressure power-equipment；In indentation water
During body, the soil body enters in the middle part of probe cylinder and leaves from top, is not need to rely on bucket foundation, can be as desired
Measure the parameter of any depth；
(2) in process of press in, lower pressure sensor 4 measures and records total injection pressure P with change in depth process, sinks
It remains a constant speed in the process, the total penetration resistance R=P of a certain depth that sensor measurement goes out；
(3) it in process of press in, is sent out on the soil body and probe cylinder for measuring the inner wall frictional resistance force snesor 7 of inside sliding block
Raw contact, pressure between the two are measured and are recorded by sensor with change in depth process；
(3) it in process of press in, is sent out on the soil body and probe cylinder for measuring the outer wall frictional resistance force snesor 5 of outer frictional resistance
Raw contact, pressure between the two are measured and are recorded by sensor with change in depth process；
(3) in process of press in, the soil body is in contact on probe cylinder for measuring the sensor for pore water pressure 8 of pore pressure, the two
Between pressure with change in depth process by sensor measure and record；
Fn=(f1n+f2n)/2, f1n、f2nThe unit area inside sliding block size measured for corresponding position sensor；
Suffered inside sliding block size during corresponding bucket foundation sinking are as follows:
Fn=fn*Sn, SnFor bucket foundation inner surface product；
The outer frictional resistance that unit area is subject in probe sinking watching are as follows:
fw=(f1w+f2w)/2, f1w、f2wThe unit area outer frictional resistance size measured for corresponding position sensor；
Suffered outer frictional resistance size during corresponding bucket foundation sinking are as follows:
Fw=fw*Sw, SwFor bucket foundation outer surface product.
Illustrative description has been done to the utility model above, it should explanation, in the core for not departing from the utility model
In the case where the heart, it is any it is simple deformation, modification or other skilled in the art can not spend creative work etc.
The protection scope of the utility model is each fallen with replacement.
Claims (10)
1. it is a kind of detect bucket foundation sinking process side friction annular feeler inspection device, it is characterised in that: including dynamometry feeler lever,
Truss and probe cylinder, are respectively arranged with lower pressure sensor, outer wall frictional resistance force snesor, inner wall frictional resistance on probe cylinder
Sensor and sensor for pore water pressure；
The lower pressure sensor is set to truss and probe cylinder junction, for measuring through dynamometry feeler lever to probe cylinder
The lower pressure applied；
The outer wall frictional resistance force snesor is set on the outer wall of probe cylinder, for measuring the frictional resistance between cylinder body outer wall and the soil body
Power, each outer wall frictional resistance force snesor are placed equidistant with along probe cylindrical barrel and are located at same level；
The inner wall frictional resistance force snesor is set on the inner wall of probe cylinder, for measuring the frictional resistance between cylinder inboard wall and the soil body
Power, each inner wall frictional resistance force snesor are placed equidistant with along probe cylindrical barrel and are located at same level；
The sensor for pore water pressure is set in the through-hole on probe cylinder barrel, for measuring the hydraulic pressure of through hole, wherein half
The sensor for pore water pressure of quantity is set to plane locating for outer wall frictional resistance force snesor, and the sensor for pore water pressure of the other half quantity is set to interior
Plane locating for wall frictional resistance force snesor.
2. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the screw thread that is connected with power mechanism is arranged in the upper end of the dynamometry feeler lever.
3. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the outer diameter of the dynamometry feeler lever is less than cylinder barrel outer diameter.
4. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the truss is connected by connecting screw with the bottom of dynamometry feeler lever.
5. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the truss include 4 vertical bars, be installed in a manner of equidistantly arranging probe cylinder on along upper.
6. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the quantity of the outer wall frictional resistance force snesor is 2-4.
7. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the quantity of the inner wall frictional resistance force snesor is 2-4.
8. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the quantity of the sensor for pore water pressure is 4-8.
9. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the wall thickness of the probe cylinder is 2-4cm, outer diameter 8-12cm, internal diameter 4-6cm, a height of 20-30cm.
10. a kind of annular feeler inspection device for detecting bucket foundation sinking process side friction according to claim 1, special
Sign is: the lower edge of the probe cylinder is set as prong structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869176.4U CN208309658U (en) | 2018-06-06 | 2018-06-06 | A kind of annular feeler inspection device detecting bucket foundation sinking process side friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820869176.4U CN208309658U (en) | 2018-06-06 | 2018-06-06 | A kind of annular feeler inspection device detecting bucket foundation sinking process side friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208309658U true CN208309658U (en) | 2019-01-01 |
Family
ID=64709632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820869176.4U Expired - Fee Related CN208309658U (en) | 2018-06-06 | 2018-06-06 | A kind of annular feeler inspection device detecting bucket foundation sinking process side friction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208309658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678035A (en) * | 2018-06-06 | 2018-10-19 | 天津大学 | A kind of annular feeler inspection device of detection bucket foundation sinking process side friction |
-
2018
- 2018-06-06 CN CN201820869176.4U patent/CN208309658U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678035A (en) * | 2018-06-06 | 2018-10-19 | 天津大学 | A kind of annular feeler inspection device of detection bucket foundation sinking process side friction |
| CN108678035B (en) * | 2018-06-06 | 2024-02-06 | 天津大学 | Annular sounding device for detecting side friction force in sinking process of cylindrical foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3351974B1 (en) | Geochemical microelectrode probe system with static penetration | |
| AU2019100321A4 (en) | A multistage penetrating in-situ device and method to observe sand waves on the seabed based on resistivity probe | |
| CN108678035A (en) | A kind of annular feeler inspection device of detection bucket foundation sinking process side friction | |
| CN202033081U (en) | Portable water level and water temperature measurement instrument | |
| CN203785669U (en) | High-precision deep sea depth detection device | |
| CN203835373U (en) | Device for detecting formed hole quality of foundation pile | |
| CN106480870A (en) | A kind of static sounding probe | |
| CN206428688U (en) | A kind of static sounding probe | |
| CN104179492B (en) | Stake holes sediment measures system | |
| CN109930580B (en) | Static sounding system suitable for shallow sea area and application method thereof | |
| CN109556653A (en) | A kind of pipeclay in situ effect test macro and its test method with hydraulic suction cylinder basis | |
| CN208309658U (en) | A kind of annular feeler inspection device detecting bucket foundation sinking process side friction | |
| CN110397015A (en) | A kind of processing method of seabed in-situ test data | |
| CN107747306B (en) | A kind of cross with Yu Haiyang's ultra-soft soil in-situ test flows feeler inspection probe entirely | |
| CN103925963B (en) | Water level and water depth measuring device | |
| CN201901866U (en) | T-shaped contact detector applied to deep-sea seabed feature testing | |
| CN105735379B (en) | A kind of Pile bottom sediment detection means | |
| JP6425086B2 (en) | Underwater ground penetration depth measuring device | |
| CN102298164A (en) | Seabed geology investigation apparatus | |
| CN107326889B (en) | Bar-shaped probe for detecting non-drainage shear strength of soft clay and calculation method | |
| CN206683681U (en) | A kind of water transparency temperature survey disk | |
| CN103674186A (en) | Oil-water interface detection device and method | |
| CN110512585A (en) | For evaluating the free fall type pore pressure dynamic sounding device of sea-bottom shallow soil characteristic | |
| CN206721943U (en) | A kind of pile foundation displacement auxiliary detection device | |
| CN113588325B (en) | Submarine sediment sampling and mechanical property in-situ testing device and testing method thereof |
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: 20190101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |