CN203361120U - Pore pressure static sounding test device - Google Patents
Pore pressure static sounding test device Download PDFInfo
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- CN203361120U CN203361120U CN 201320393161 CN201320393161U CN203361120U CN 203361120 U CN203361120 U CN 203361120U CN 201320393161 CN201320393161 CN 201320393161 CN 201320393161 U CN201320393161 U CN 201320393161U CN 203361120 U CN203361120 U CN 203361120U
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- hole
- static sounding
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- probe
- pore pressure
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Abstract
The utility model discloses a pore pressure static sounding test device which is composed of a pore pressure static sounding system, a flexible wall calibration groove and a pore pressure recording instrument. The pore pressure static sounding system, the flexible wall calibration groove and the pore pressure recording instrument are sequentially connected from top to bottom. The pore pressure static sounding system comprises a data collection and control system, a back pressure frame, a probing rod, a side wall friction cylinder, a pore pressure filtering ring and a conical head. The flexible wall calibration groove comprises a top plate, a bottom fixing ring, a base plate, a piston, an annular outer wall, an annular thin film, an inner wall, an annular sealing ring, a screw, a testing pore, a water draining pore, a vertical pore pressure pipe, a water draining pipe, a pore pressure sensor circuit component and a piston guiding bearing. The test device has the advantages of being accurate, high in repeatability and the like, and is a powerful test tool for civil engineering exploration practice and theoretical research.
Description
Technical field
The utility model belongs to field of civil engineering, relates to a kind of hole and presses the static sounding testing arrangement.
Background technology
Hole presses the static sounding measuring technology to refer to utilize the pressure apparatus will be with the sounding rod indentation test soil layer of contact probe, the throughput examining system is tested native static point resistance, side friction power and pore water pressure etc., can determine some basic physical mechanics properties of soil, as the allowable bearing etc. of native modulus of deformation, soil.Hole presses the static sounding technology to have so far the history of more than 30 year in the world.The static sounding measuring technology is pressed in the extensive use hole in the world, has partly or entirely replaced probing and the sampling in the engineering investigation.The current extensive use of China be the electric measuring type static sounding, serve engineering investigation, yet do not measure the international hole extensively adopted of penetration process Pore Pressure ，Yu, press the static sounding measuring technology to compare the gap that existence is very large.However, domestic many research institutions have carried out continuous introducing and transformation to this measuring technology.Hole presses the static sounding measuring technology after China has experienced long-term development, is at present the stage of popularizing.Yet, in engineering practice, hole presses the application of static sounding measuring technology still to have an a series of difficult problem, mainly comprises injection mechanism and drainage condition analysis etc.
Press the injection mechanism of static sounding in order to study hole, scholar both domestic and external and research institution have carried out a series of Test And Research Work, and what stand in the breach is to carry out the index slot test.In order to simulate native in-situ test, foreign study mechanism has carried out large-scale index slot test, to control drainage condition and the stress condition in test, draws the dependency relation of test achievement and fringe conditions.The starting of external model testing early, is carried out morely, and automaticity is also higher, to existing comparatively deep researchs of problem such as the fringe conditions of index slot, dimensional effects.But index slot used is mostly less, diameter, highly generally all be no more than 2 m, adopt miniature probe more.All can not realize hole is pressed the control of drainage condition in the static sounding penetration process in all index slot tests simultaneously.Research shows, hole presses static sounding probe in penetration process, while from draining, being converted into und rained condition, measured key index static point resistance amplitude of variation can reach ± and 30%, illustrate that correct understanding to drainage condition in penetration process is to guarantee accurately important prerequisite reliably of test result.Especially for silt, drainage condition is complicated and changeable, more needs reliable analysis.
The drainage condition of hole pressure static sounding probe penetration process and the injection speed of probe are closely related, it has been generally acknowledged that under the condition of standard speed 200mm/s, is complete draining to sand, to clay, is not draining, to silt, drainage condition is not clear, should be between between the two above-mentioned; Injection speed is lower, approximately is tending towards complete draining.Therefore, for realizing the draining test in clay, need to reduce the injection speed that static sounding probe is pressed in hole.Utilize this principle, in conjunction with conventional index slot, the utility model proposes a kind of variable Rate and change probe size utilized and test to analyze the flexible wall index slot that static sounding test injection mechanism and drainage condition are pressed in hole.
The utility model content
technical problem:the utility model is for the defect that both at home and abroad existing hole presses the static sounding index slot to exist, propose a kind of convenient, fast, accurately estimate the change of pressing drainage condition in the static sounding penetration process in hole with and the static sounding testing arrangement is pressed in the hole of test result impact.
technical scheme:the static sounding testing arrangement is pressed in a kind of hole of the present utility model, comprise that connecting successively from top to bottom the hole arranged presses the static sounding test macro, recorder is pressed in flexible wall index slot and hole, hole is pressed the static sounding test macro to comprise for the collecting test data and is controlled the acquisition and control system of the injection speed of popping one's head in, static sounding probe is pressed in the hole that the back-pressure frame of injection counter-force is provided and is fixed on the back-pressure frame by slips, hole presses static sounding probe to be connected with acquisition and control system by data line, hole presses static sounding probe to comprise the feeler lever connected successively from top to bottom, the sidewall friction cylinder, hole press filtration ring and nose cone, the flexible wall index slot comprises top board, bottom retainer ring, be arranged on retainer ring inboard, bottom base plate, the piston be fixedly connected with the base plate downside, be connected top board and the outer wall of the annular of bottom retainer ring, the film that is connected the annular of top board and base plate, inwall, film, inner and outer wall set gradually from the inside to the outside, outer wall is formed by stacking from bottom to up successively by a plurality of stainless steel rings, O-ring seal is arranged on the seam crossing of top board and film, outer exterior wall is provided with many screw rods of circumferential symmetric arrays, by top board and bottom retainer ring fixed strain, be provided with on top board for press the instrument connection of static sounding probe through hole, be provided with the vertical pore pressure pipe of drain hole and Duo Gen on base plate, the bottom opening of drain hole is connected with gutter, and the bottom opening of vertical pore pressure pipe is provided with the sensor for pore water pressure component, be provided with piston guide in piston base, the sensor for pore water pressure component passes piston by data line and with hole, presses recorder to be connected with the aperture in piston guide.
In the utility model, but the injection rate variation scope of acquisition and control system control hole pressure static sounding probe is 0.01mm/s to 200mm/s, can specifically select according to testing requirement.
In the utility model, it is 1.13cm to 3.57cm that the sidewall friction cylinder external diameter excursion of static sounding probe is pressed in hole, and the surface area excursion is 15cm
2to 150cm
2.
In the utility model, hole presses the hole press filtration ring external diameter of static sounding probe identical with external diameter at the bottom of the circular cone nose cone, is 1.13cm to 3.57cm.
In the utility model, it is 60 ° that the nose cone drift angle of static sounding probe is pressed in hole, and the probe external diameter is 1.13cm to 3.57cm.
In the utility model, in flexible wall index slot outer wall, the height of single stainless steel ring is 0.4m to 0.6m, and external diameter is 1.0m to 1.8m, and internal diameter is 0.9m to 1.7m.
The pore water pressure that hole presses the recorder storage not descend in the same time the sensor for pore water pressure component to record, can easily realize by existing computer technology and instrumental science technology, common hole is pressed recorder usually to be built in hole and is pressed in the test macros such as static sounding and hole pressure meter.
The static sounding testing arrangement is pressed in hole of the present utility model, and its variable Rate part of detecting presses static sounding test macro, flexible wall index slot and hole to press recorder three parts jointly to complete by hole.Be mixed with the soil sample of expection in laboratory after, the soil sample device is entered in the flexible wall index slot, toward injected water between outer wall, inwall and the film of flexible wall index slot.Externally under the effect of control pressurer system, water is applied to radial pressure, with the natural stress of simulation soil layer
k 0state; Inject de aerated water in soil layer, the vertical counter-pressure that piston is applied to 200kPa, to guarantee the fully saturated of soil layer, then applies the vertical pressure of 230kPa to piston, completes soil layer
k 0consolidation test, the coefficient of consolidation of mensuration soil layer.Under the acquisition and control system operation, press in the soil layer of static sounding probe with predefined speed injection flexible wall index slot inside in hole, by the back-pressure frame, provides the injection counter-force, and static probe.Acquisition and control system records the suffered side friction of sidewall friction cylinder in penetration process, the pore water pressure at press filtration ring place, hole and the suffered static point resistance of nose cone.The injection of probe causes the variation of soil layer pore water pressure on every side, and for complete drainage condition, hole is pressed and changed not quite; And, to und rained condition, hole is pressed and is altered a great deal.Therefore, in the time of in probe injection soil layer, the sensor for pore water pressure that is arranged in vertical pore pressure pipe bottom can be monitored the pore water pressure situation of change with the different spacing place of popping one's head in, and through data line, signal is transferred to hole and press in recorder, for the analysis of data, adopts.Contrast under different injection rate conditions, the static point resistance recorded, side friction power and pore water pressure, can draw the response characteristic of different great soil groups under different injection rate conditions, thereby instruct engineering practice.
Research shows, to general sand, the injection speed of 200mm/s can guarantee the drainage condition in penetration process, if need to reach not draining injection, injection speed may be up to 200mm/s.For clay, because clay has very low permeability, therefore need low-down injection speed, may hang down and reach 0.2mm/s.The injection speed that the utility model is controlled is selected in the scope of 0.01mm/s to 200mm/s, can meet the draining injection to sand, also can realize draining and not draining injection to silt and clay simultaneously, to the different soil mesopore, press the correct decipher of static sounding test result to there is important theory and engineering practice Research Significance.
Hole presses static sounding index slot result of the test to be subject to the impact of boundary effect, when probe distance index slot border, crosses when near, is subject to the impact of boundary constraint, and the static point resistance recorded, side friction power and pore water pressure all can change, and cause distortion.Therefore, the utility model has designed the flexible wall index slot of double-walled, on the one hand can simulated field
k 0state, reduced the impact of boundary effect on the other hand, makes hole press the correct explanation that more is easy to get of static sounding test result.In addition, the utility model has also designed the hole of different size and has pressed static sounding probe, can select sidewall friction cylinder and the nose cone of different size, to analyze the impact of boundary effect, enlarges the scope of application of index slot to different great soil groups simultaneously.
The designed flexible wall index slot outer wall of the utility model is comprised of a series of stainless steel rings, and the size of stainless steel ring is determined according to the achievement in research of index slot boundary effect, can effectively reduce the constraint impact on border; The height of outer wall can or reduce to be adjusted by the increase of stainless steel ring, has expanded flexibility and the applicability of index slot.Screw rod plays fixation, maintains the stationarity of whole flexible wall index slot system.
beneficial effect:hole presses the variation of drainage condition in the injection mechanism of static sounding and penetration process significant to the correct decipher of test result, is the important evidence of guaranteeing the engineering construction reliability.There is defect in domestic existing index slot, and at first the index slot sidewall is steel sheet, does not possess enough flexibilities; Secondly the penetration process of static sounding probe is process at the uniform velocity, or is artificial hand injection, can not carry out accurate effective and variable control to injection speed; Finally, the domestic index slot test static sounding probes that adopt fixed dimensions more, can not clear and definite penetration process in fringe conditions on the impact of test result, make test result have larger error.The utility model compared with prior art, has the following advantages: at first, the index slot lateral boundaries is by the double-walled setting, and outer wall is realized rigid constraint, and inwall and film are realized flexible constraint, injected water between outer wall-inwall-film, can realize side direction pressurization and
k 0fringe conditions, thus realized simultaneously rigid boundary, flexible boundary and
k 0border; Secondly to hole, press the injection of static sounding probe to realize normalized variable Rate control, different soil layers is implemented to different injection speed, the impact of the different injection speed of the analysis of energy system, science on the static sounding test result, thus the civil engineering practice instructed; Finally apply the hole of different size specification and pressed static sounding probe, by the hole to different-diameter, press the suffered penetration resistance of static sounding probe to be analyzed, but the quantitative assessment fringe conditions has been conducive to eliminate boundary effect to the impact of test result.This technology has reliability and repeatable characteristics.
The accompanying drawing explanation
Fig. 1 is the variable Rate flexible wall index slot component arrangement figure that the utility model adopts;
Fig. 2 is flexible wall index slot sidewall schematic three dimensional views;
Fig. 3 is partial cross section's enlarged drawing of flexible wall index slot;
In figure, have: recorder 19, bottom retainer ring 20, base plate 21 are pressed in acquisition and control system 1, back-pressure frame 2, feeler lever 3, sidewall friction cylinder 4, hole press filtration ring 5, nose cone 6, top board 7, instrument connection 71, O-ring seal 8, many screw rods 9, outer wall 10, inwall 11, film 12, vertical pore pressure pipe 13, drain hole 14, gutter 15, piston 16, piston guide 17, sensor for pore water pressure component 18, holes.
The specific embodiment
Below in conjunction with drawings and Examples, to the utility model hole, press the static sounding testing arrangement to further illustrate.
The static sounding testing arrangement is pressed in hole of the present utility model, see Fig. 1, comprise that connecting successively from top to bottom the hole arranged presses the static sounding test macro, recorder is pressed in flexible wall index slot and hole, hole is pressed the static sounding test macro to comprise for the collecting test data and is controlled the acquisition and control system 1 of the injection speed of popping one's head in, being fixed on ground can provide the back-pressure frame 2 of injection counter-force and be fixed on the hole pressure static sounding probe on back-pressure frame 2 by slips, hole presses static sounding probe to be connected with acquisition and control system 1 by data line, hole presses static sounding probe to comprise the feeler lever 3 connected successively from top to bottom, sidewall friction cylinder 4, hole press filtration ring 5 and nose cone 6, the flexible wall index slot comprises top board 7, bottom retainer ring 20, be arranged on the base plate 21 of retainer ring 20 inboards, bottom, the piston 16 be fixedly connected with base plate 21 downsides, the outer wall 10 that connects the annular of top board 7 and bottom retainer ring 20, the film 12 that connects the annular of top board 7 and base plate 21, inwall 11, film 12, inwall 11 and outer wall 10 set gradually from the inside to the outside, outer wall 10 is formed by stacking from bottom to up successively by a plurality of stainless steel rings, O-ring seal 8 is arranged on the seam crossing of top board 7 and film 12, outer wall 10 arranged outside have the many screw rods 9 of circumferential symmetric arrays, by top board 7 and bottom retainer ring 20 fixed strains, on top board 7, be provided with for press the instrument connection 71 of static sounding probe through hole, be provided with the vertical pore pressure pipe 13 of drain hole 14 and Duo Gen on base plate 21, the bottom opening of drain hole 14 is connected with gutter 15, and the bottom opening of vertical pore pressure pipe 13 is provided with sensor for pore water pressure component 18, be provided with piston guide 17 in piston 16 bottoms, sensor for pore water pressure component 18 passes piston 16 by data line and with hole, presses recorder 19 to be connected with the aperture in piston guide 17.
In preferred embodiment of the present utility model, but the injection rate variation scope of acquisition and control system 1 control hole pressure static sounding probe is 0.01mm/s to 200mm/s, can specifically select according to testing requirement.
In preferred embodiment of the present utility model, back-pressure frame 2 maximums provide the injection counter-force of 100kN, by earth anchorage on the ground.
In preferred embodiment of the present utility model, hole presses static sounding probe to be fixed on by slips on the crossbeam of back-pressure frame 2, and the crossbeam of back-pressure frame 2 can be up and down.
In preferred embodiment of the present utility model, it is 1.13cm to 3.57cm that the sidewall friction cylinder 4 external diameter excursions of static sounding probe are pressed in hole, and the surface area excursion is 15cm
2to 150cm
2.
In preferred embodiment of the present utility model, it is 1.13cm to 3.57cm that hole press filtration ring 5 external diameters of static sounding probe are pressed in hole, but size need be identical with nose cone 6 cone end external diameters.
In preferred embodiment of the present utility model, it is 60 ° that nose cone 6 drift angles of static sounding probe are pressed in hole, and the probe external diameter is 1.13cm to 3.57cm.
In preferred embodiment of the present utility model, the top of top board 7 offers instrument connection 71, can also offer other a plurality of instrument connections at the different parts of top board according to actual needs, realizes the repeatedly test to same soil layer, takes full advantage of resource, reduces workload; Also contribute to study the impact of boundary effect on test result simultaneously.
In preferred embodiment of the present utility model, the flexible wall index slot adopts the double-walled setting, is divided into outer wall 10 and inwall 11 two parts, in inwall 11 inner spaces, also is provided with film 12, to allow the natural of simulation soil layer
k 0state.
In preferred embodiment of the present utility model, the height that forms the single stainless steel ring of flexible wall index slot outer wall 10 is 0.4m to 0.6m, and external diameter is 1.0m to 1.8m, and internal diameter is 0.9m to 1.7m.; Can be adjusted according to the actual tests demand, yet the internal diameter requirement is not less than 15 to 30 times of 30 times of holes pressure static sounding probe diameters, fully to reduce the impact of boundary effect; The stainless steel ring quantity that forms flexible wall index slot outer wall 10 is recommended as 20, to meet enough MTD, and equally also can be according to test increase in demand or minimizing.
In preferred embodiment of the present utility model, screw rod 9 is arranged according to circumference in equal parts, and quantity can be 2 to 10, is recommended as 8, can be adjusted according to the stability of testing equipment.
In the utility model, the pore water pressure that hole presses recorder 19 storages not descend in the same time sensor for pore water pressure component 18 to record, can easily realize by existing computer technology and instrumental science technology, common hole is pressed recorder usually to be built in hole and is pressed in the test macros such as static sounding and hole pressure meter.
The static sounding testing arrangement is pressed in hole of the present utility model, and its variable Rate part of detecting presses static sounding test macro, flexible wall index slot and hole to press recorder three parts jointly to complete by hole.Be mixed with the soil sample of expection in laboratory after, the soil sample device is entered in the flexible wall index slot, toward injected water between outer wall, inwall and the film of flexible wall index slot.Externally under the effect of control pressurer system, water is applied to radial pressure, with the natural stress of simulation soil layer
k 0state; Inject de aerated water in soil layer, piston guide is applied to the vertical counter-pressure of 200kPa, indirectly be applied on the soil body in base plate and flexible wall index slot by piston, to guarantee the fully saturated of soil layer; Then piston guide is applied the vertical pressure of 230kPa, complete soil layer
k 0consolidation test, the coefficient of consolidation of mensuration soil layer.
Under the acquisition and control system operation, press in the soil layer of static sounding probe with predefined speed injection flexible wall index slot inside in hole, in penetration process, by the back-pressure frame, provides the injection counter-force, and static probe.When acquisition and control system applies downward injection pressure to crossbeam, slips can apply friction force to feeler lever, makes hole press static sounding probe and crossbeam to be synchronized with the movement, and realizes the injection of hole pressure static sounding probe; And, after the injection of a stroke, need to press static sounding probe to maintain static by putting forward retaining hole simultaneously on crossbeam, now, slips can discharge the frictional force to feeler lever, realizes both relative motions; Except slips, also can realize aforesaid operations by firmwares such as pipe wrench and U-bolts, obtained ripe application in this method of testing vehicular static sounding test macro at home and abroad.
Acquisition and control system records the suffered side friction of sidewall friction cylinder in penetration process, the pore water pressure at press filtration ring place, hole and the suffered static point resistance of nose cone.The injection of probe causes the variation of soil layer pore water pressure on every side, and for complete drainage condition, hole is pressed and changed not quite; And, to und rained condition, hole is pressed and is altered a great deal.Therefore, in the time of in probe injection soil layer, the sensor for pore water pressure that is arranged in vertical pore pressure pipe bottom can be monitored the pore water pressure situation of change with the different spacing place of popping one's head in, comprise around probe the super hole of soil layer press with and evanishment, and through data line, signal is transferred in the pressure recorder of hole, for the analysis employing of data.
After experiment finishes, under the acquisition and control system operation, take out hole and press static sounding probe; Removal screw rod and top board, open the gutter valve be connected with drain hole, and the water in the soil body is discharged by drain hole and gutter, then takes out the soil body in the flexible wall index slot, and completes cleaning; Finally be split into the stainless steel ring of outer wall, and preserve.
Contrast under different injection rate conditions, the static point resistance recorded, side friction power and pore water pressure, can draw the response characteristic of different great soil groups under different injection rate conditions, thereby instruct engineering practice.
Also can in the soil body of flexible wall index slot inside, bury earth pressure cell underground in the utility model, the STRESS VARIATION of the horizontal direction of surrounding soil and vertical direction in the test probe penetration process, the method for embedding of earth pressure cell can experimental particular demands and is determined.
In addition, in flexible wall index slot bottom, generally need to build base or support, so that the laying and stable testing of testing arrangement.
Claims (6)
1. the static sounding testing arrangement is pressed in a hole, it is characterized in that, this device comprises that connecting successively from top to bottom the hole arranged presses the static sounding test macro, recorder is pressed in flexible wall index slot and hole, described hole is pressed the static sounding test macro to comprise for the collecting test data and is controlled the acquisition and control system (1) of the injection speed of popping one's head in, static sounding probe is pressed in the hole that the back-pressure frame (2) of injection counter-force is provided and is fixed on described back-pressure frame (2) by slips, described hole presses static sounding probe to be connected with acquisition and control system (1) by data line, hole presses static sounding probe to comprise the feeler lever (3) connected successively from top to bottom, sidewall friction cylinder (4), hole press filtration ring (5) and nose cone (6), described flexible wall index slot comprises top board (7), bottom retainer ring (20), be arranged on the inboard base plate (21) of described bottom retainer ring (20), the piston (16) be fixedly connected with described base plate (21) downside, the outer wall (10) that connects the annular of described top board (7) and bottom retainer ring (20), the film (12) that connects the annular of described top board (7) and base plate (21), inwall (11), described film (12), inwall (11) and outer wall (10) set gradually from the inside to the outside, described outer wall (10) is formed by stacking from bottom to up successively by a plurality of stainless steel rings, the seam crossing at top board (7) downside and film (12) top is provided with O-ring seal (8), described outer wall (10) arranged outside has the many screw rods (9) of circumferential symmetric arrays, by top board (7) and bottom retainer ring (20) fixed strain, on described top board (7), be provided with for press the instrument connection (71) of static sounding probe through hole, be provided with drain hole (14) and many vertical pore pressure pipes (13) on described base plate (21), the bottom opening of described drain hole (14) is connected with gutter (15), and the bottom opening of described vertical pore pressure pipe (13) is provided with sensor for pore water pressure component (18), be provided with piston guide (17) in piston (16) bottom, described sensor for pore water pressure component (18) passes piston (16) by data line and with hole, presses recorder (19) to be connected with the aperture in piston guide (17).
2. the static sounding testing arrangement is pressed in hole according to claim 1, it is characterized in that, it is 0.01mm/s to 200mm/s that described acquisition and control system (1) control hole is pressed the injection rate variation scope of static sounding probe.
3. the static sounding testing arrangement is pressed in hole according to claim 1, it is characterized in that, it is 1.13cm to 3.57cm that sidewall friction cylinder (4) the external diameter excursion of static sounding probe is pressed in described hole, and the surface area excursion is 15cm
2to 150cm
2.
4. the static sounding testing arrangement is pressed in hole according to claim 1, it is characterized in that, described hole presses hole press filtration ring (5) external diameter of static sounding probe identical with nose cone (6) cone end external diameter, is 1.13cm to 3.57cm.
5. the static sounding testing arrangement is pressed in hole according to claim 1, it is characterized in that, it is 60 ° that nose cone (6) drift angle of static sounding probe is pressed in described hole, and the probe external diameter is 1.13cm to 3.57cm.
6. the static sounding testing arrangement is pressed in hole according to claim 1, it is characterized in that, in described flexible wall index slot outer wall (10), the height of single stainless steel ring is 0.4m to 0.6m, and external diameter is 1.0m to 1.8m, and internal diameter is 0.9m to 1.7m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320393161 CN203361120U (en) | 2013-07-03 | 2013-07-03 | Pore pressure static sounding test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320393161 CN203361120U (en) | 2013-07-03 | 2013-07-03 | Pore pressure static sounding test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203361120U true CN203361120U (en) | 2013-12-25 |
Family
ID=49808908
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320393161 Withdrawn - After Issue CN203361120U (en) | 2013-07-03 | 2013-07-03 | Pore pressure static sounding test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323569A (en) * | 2013-07-03 | 2013-09-25 | 东南大学 | Variable-rate pore pressure static sounding test device |
| CN104234023A (en) * | 2014-09-19 | 2014-12-24 | 东南大学 | Bentonite slurry lubricated penetration rod used for piezocone penetration test |
| CN110266570A (en) * | 2019-05-29 | 2019-09-20 | 东南大学 | It is a kind of based on internet and cloud platform can remote transmission CPTU system |
| CN110954673A (en) * | 2019-12-02 | 2020-04-03 | 中国海洋大学 | Static sounding indoor simulation test method |
| CN110954674A (en) * | 2019-12-02 | 2020-04-03 | 中国海洋大学 | Static sounding indoor simulation test device |
-
2013
- 2013-07-03 CN CN 201320393161 patent/CN203361120U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323569A (en) * | 2013-07-03 | 2013-09-25 | 东南大学 | Variable-rate pore pressure static sounding test device |
| CN103323569B (en) * | 2013-07-03 | 2015-01-07 | 东南大学 | Variable-rate pore pressure static sounding test device |
| CN104234023A (en) * | 2014-09-19 | 2014-12-24 | 东南大学 | Bentonite slurry lubricated penetration rod used for piezocone penetration test |
| CN110266570A (en) * | 2019-05-29 | 2019-09-20 | 东南大学 | It is a kind of based on internet and cloud platform can remote transmission CPTU system |
| CN110954673A (en) * | 2019-12-02 | 2020-04-03 | 中国海洋大学 | Static sounding indoor simulation test method |
| CN110954674A (en) * | 2019-12-02 | 2020-04-03 | 中国海洋大学 | Static sounding indoor simulation test device |
| CN110954674B (en) * | 2019-12-02 | 2023-08-29 | 中国海洋大学 | Indoor simulation test device for static sounding |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20150107 |
|
| RGAV | Abandon patent right to avoid regrant |