CN205404156U - Weak intermediate layer sampling device - Google Patents
Weak intermediate layer sampling device Download PDFInfo
- Publication number
- CN205404156U CN205404156U CN201620183603.4U CN201620183603U CN205404156U CN 205404156 U CN205404156 U CN 205404156U CN 201620183603 U CN201620183603 U CN 201620183603U CN 205404156 U CN205404156 U CN 205404156U
- Authority
- CN
- China
- Prior art keywords
- casing
- case lid
- draw
- groove
- box
- 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.)
- Active
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a geotechnical engineering technical field's a weak intermediate layer sampling device, the device include box, top case lid and bottom case lid, the top and the bottom of box all are equipped with the draw -in groove, top case lid and bottom case lid slidable ground respectively agree with in the draw -in groove of the top of box and bottom, be equipped with the blade on the edge of bottom half. The beneficial effects of the utility model are that: the box that the utilization has the blade is as sampling tool, easy operation, sample convenient and fast, reuse many times to disturbance destruction to the soil body is little, loads onto the case lid after the sample and seals up up for safekeeping, can prevent the water loss of the soil body, the success rate of the increase sample that so as to is very big and the accuracy of test parameter.
Description
Technical field
This utility model relates to Geotechnical Engineering field, particularly relates to a kind of sampler for the weak intercalated layer needed for high pressure water injection permeability test.
Background technology
At present, along with municipal administration, traffic, water conservancy industry large-scale construction project quickening, the weak intercalated layer that survey and design personnel run in engineering is consequently increased.Weak intercalated layer refers to the aspect that mechanical property and deformation modulus in rock mass are relatively low, weak intercalated layer is bigger on the impact of engineering, if any weak intercalated layer in Dam Foundation Rock, the stability against sliding of Dam Foundation Rock can be affected, there is weak intercalated layer in brae, river valley or road slope rock mass, frequently can lead to slope slump unstability.
After the country rock of high pressure conveying water tunnel or the Dam Foundation Rock of high dam go through repeated tectonic movements, rock mass always exists the Weak face such as the structural plane that formed in hidden crack, joint or diagenetic process, the most concerned problem of designer is cranny development and the relatively fragmented rock body character such as stability and permeability under high pressure, this must be estimated by suitable experimental study, high pressure water injection permeability test is one method comparatively reliably, and the accuracy hence for the test parameters of weak intercalated layer is also day by day important.
In prior art weak intercalated layer sampling for high pressure permeability experiment be all mostly the soil body is excavated, after strip off exposes five, wrap up with wire gauze, encapsulate with cement again, again bottom surface is routed up, again encapsulating with cement, whole process is relatively complicated, and the sample body taken out is easily subject to disturbance and destroys, moisture not easily retains, it is therefore necessary to study a kind of new weak intercalated layer sampler.
Utility model content
For overcoming existing weak intercalated layer sampler complicated operation, easily disturbance is caused to destroy soil sample, the deficiency such as moisture not easily reservation, technical problem to be solved in the utility model is: provide one operation rationally, survivable soil sample, and there is the sampler sealing function up for safekeeping.
This utility model solves the technical scheme is that weak intercalated layer sampler of its technical problem, including casing, top cover and bottom case lid, top and the bottom of described casing are equipped with draw-in groove, described top cover and bottom case lid respectively slidably agree with in the top of casing and the draw-in groove of bottom, and the seamed edge of described box bottom is provided with cutting edge.
Further, the sidewall of described casing is provided with the perspective bar vertically arranged.
Further, described perspective bar is provided with scale size.
Further, the top of described casing is provided with rack platform, and the surrounding of described rack platform is uniformly fixed on four angles at casing top, and rack platform is centrally located at the surface of casing top center.
Further, the center of described rack platform is provided with sleeper block.
The beneficial effects of the utility model are: utilize the casing with cutting edge as sampling instrument, simple to operate, sample convenient and swift, can repeatedly reuse, and the disturbance of the soil body is destroyed little, load onto case lid after sampling and seal up for safekeeping, the water loss of the soil body can be prevented such that it is able to increasing the success rate of sampling and the accuracy of test parameters greatly.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model sectional structure schematic diagram.
Being labeled as in figure, 1-casing, 2-top cover, case lid bottom 3-, 4-has an X-rayed bar, 5-rack platform, 6-sleeper block, 11-draw-in groove, 12-cutting edge.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further illustrated.
As shown in Figure 1, this utility model includes casing 1, top cover 2 and bottom case lid 3, top and the bottom of described casing 1 are equipped with draw-in groove 11, described top cover 2 and bottom case lid 3 respectively slidably agree with in the draw-in groove 11 of the top of casing 1 and bottom, and the seamed edge bottom described casing 1 is provided with cutting edge 12.The shape of casing 1 can be the cylinder of cylinder or shape changeable, but in order to conveniently put into case lid, be preferably positioned to cube, draw-in groove 11 should be arranged on distance casing 1 upper and lower end parts certain distance position, arrange cutting edge 12 in order that be easy to casing 1 and can better be pressed in the soil body.
Sampling process of the present utility model is:
First top cover 2 and bottom case lid 3 are taken off, casing 1 is vertically disposed in the surface of weak intercalated layer, then act on casing 1 upper end with jack and steadily apply pressure to vertical sandwich surface, casing 1 is slowly pressed into interlayer, see that casing 1 top has the soil body to emerge and can stop pressurization.Special attention should be that, sampling cabinet should be allowed in operation to keep vertical with sandwiching surface direction, it is to avoid sampling cabinet tilts, and causes disturbance, and applying pressure by jack should be steady, reduces the disturbance to the soil body and destroys.
Then top cover 2 is slipped into along draw-in groove 11, before snapping in case lid, need the smooth soil sample beyond draw-in groove 11, seal with wax on the spot after top cover 2 card is good, to ensure the sealing at sampling cabinet top.Hold up steady sampling cabinet after sealing, with instrument, the interlayer of 20cm around sampling cabinet is cleaned out, be sure not to rock sampling cabinet in the process of cleaning.
Finally by 1cm bottom scuppit traverse sampling cabinet, gently lift scuppit and take advantage of a situation by the reversing of sampling cabinet cutting edge end upward, take away scuppit and soil sample more than draw-in groove is cleaned out, make soil sample parallel with draw-in groove 11, in draw-in groove 11, snap in bottom case lid 3 again and seal with wax, so far, completing whole sampling work.
When the weak intercalated layer of some thinner thicknesses is sampled, casing 1 tends not to be fully pressed in the soil body, just needs to take certain thickness interlayer soil sample through some conversions when sampling.For the ease of observing the thickness of soil sample, the sidewall of casing 1 is provided with the perspective bar 4 vertically arranged.In order to further determine that the thickness of soil sample, can in perspective bar 4 subscript high scale size.
Due to when being pressed into casing 1, the impetus that casing 1 upper surface is not good, easily make pressure uneven, the soil body is caused disturbance, press for the ease of jack, be provided with rack platform 5 at the top of described casing 1, the surrounding of described rack platform 5 is uniformly fixed on four angles at casing 1 top, and rack platform 5 is centrally located at the surface of casing 1 top center.During pressure, jack acts directly on the central authorities of rack platform 5, it is ensured that casing 1 uniform force everywhere, does not have inclination, the soil body is caused disturbance.Casing 1 can be played certain fixation by rack platform 5 simultaneously, makes casing 1 structure more stable, it is prevented that deformation.
In the process of press-in casing 1; some harder rocks may be met; if impacting and easily casing 1 being caused damage relatively greatly; in order to avoid rigid shock; one piece of sleeper block 6 can be set on rack platform 5; jack acts on and can play certain cushioning effect on sleeper block 6, reduces rigid shock, casing 1 is played certain protective effect.
This utility model simple in construction, fabrication and processing is convenient, samples convenient and swift, and the quality of soil sample obtained is good, it is possible to increases the accuracy of sampling success rate and test parameters greatly, has good practicality and application prospect.
Claims (5)
1. weak intercalated layer sampler, including casing (1), top cover (2) and bottom case lid (3), it is characterized in that: the top of described casing (1) and bottom are equipped with draw-in groove (11), described top cover (2) and bottom case lid (3) respectively slidably agree with in the draw-in groove (11) of the top of casing (1) and bottom, and the seamed edge of described casing (1) bottom is provided with cutting edge (12).
2. weak intercalated layer sampler as claimed in claim 1, is characterized in that: the sidewall of described casing (1) is provided with the perspective bar (4) vertically arranged.
3. weak intercalated layer sampler as claimed in claim 2, is characterized in that: described perspective bar (4) is provided with scale size.
4. the weak intercalated layer sampler as described in claim 1,2 or 3, it is characterized in that: the top of described casing (1) is provided with rack platform (5), the surrounding of described rack platform (5) is uniformly fixed on four angles at casing (1) top, and rack platform (5) is centrally located at the surface of casing (1) top center.
5. weak intercalated layer sampler as claimed in claim 4, is characterized in that: the center of described rack platform (5) is provided with sleeper block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620183603.4U CN205404156U (en) | 2016-03-10 | 2016-03-10 | Weak intermediate layer sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620183603.4U CN205404156U (en) | 2016-03-10 | 2016-03-10 | Weak intermediate layer sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205404156U true CN205404156U (en) | 2016-07-27 |
Family
ID=56440842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620183603.4U Active CN205404156U (en) | 2016-03-10 | 2016-03-10 | Weak intermediate layer sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205404156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065380A (en) * | 2020-10-20 | 2020-12-11 | 中国电建集团成都勘测设计研究院有限公司 | Large-buried-depth narrow-channel shaft electric sampling device and sampling method |
-
2016
- 2016-03-10 CN CN201620183603.4U patent/CN205404156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065380A (en) * | 2020-10-20 | 2020-12-11 | 中国电建集团成都勘测设计研究院有限公司 | Large-buried-depth narrow-channel shaft electric sampling device and sampling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104807706A (en) | Portable soft and weak layer in-situ direct shear tester and testing method thereof | |
| Stirling et al. | Weather-driven deterioration processes affecting the performance of embankment slopes | |
| McKelvey et al. | Modelling vibrated stone columns in soft clay | |
| Yun et al. | The horizontal-moment capacity of embedded foundations in undrained soil | |
| Ito et al. | Determination of swelling and shrinkage properties of undisturbed expansive soils | |
| Rujikiatkamjorn et al. | Conceptual model describing smear zone caused by mandrel action | |
| CN204575465U (en) | Portable soft layer in-situ direct shear tester | |
| Zhang et al. | Damage and sealing of clay rocks detected by measurements of gas permeability | |
| CN108519249B (en) | Large-scale multi-section undisturbed soil sampler and sampling method | |
| Sinnathamby et al. | Landfill cap models under simulated climate change precipitation: impacts of cracks and root growth | |
| O’Kelly | Effective stress strength testing of peat | |
| CN105067438A (en) | Model testing device capable of applying three-axis stress for tunnel dislocation destruction when movable fault zone is penetrated | |
| CN106442108A (en) | Discarded tire sheet body shearing strength testing device and method | |
| CN106979867A (en) | The sampling method of the structural plateau drift sheet undisturbed soil sample of large scale unsaturation | |
| CN205404156U (en) | Weak intermediate layer sampling device | |
| CN102926385A (en) | Method for treating pile-forming mud-clamping defect of large-diameter filling pile of bridge | |
| CN203337133U (en) | Ground subsidence measurement point protection device | |
| Houben et al. | Fracture-induced permeability in Whitby mudstone | |
| CN103234770B (en) | Bed mud and overlying water collecting device and method of operating thereof | |
| CN212931947U (en) | Movable soil sampling device for geological survey | |
| CN105784446A (en) | Preparation facilities of cohesive soil layer of simulation static pressure stake pile sinking process | |
| Yang et al. | Long-term stability of large span caverns at the 1400-year Heidong quarry | |
| CN103257082B (en) | Method of reducing sample disturbances of direct shear test and cutting ring | |
| Juneja et al. | Behaviour of clay reinforced by sand compaction pile with smear | |
| CN109556951B (en) | Mechanical testing device and method for underwater dumping deformation body of plate cracking hard rock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |