CN202770748U - Combined type metal lantern ring for lateral restraint rock expansion test - Google Patents
Combined type metal lantern ring for lateral restraint rock expansion test Download PDFInfo
- Publication number
- CN202770748U CN202770748U CN 201220422075 CN201220422075U CN202770748U CN 202770748 U CN202770748 U CN 202770748U CN 201220422075 CN201220422075 CN 201220422075 CN 201220422075 U CN201220422075 U CN 201220422075U CN 202770748 U CN202770748 U CN 202770748U
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- cutting ring
- opening cutting
- rock
- split
- split cavity
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Abstract
The utility model discloses a combined type metal lantern ring for a lateral restraint rock expansion test. The combined type metal lantern ring is composed of split moulds and split cutting rings, each split mould is formed by connecting two semi-circle moulds which are in butting joint and a bolt, each split cutting ring is arranged in a central inner circle of the split mould, and the split cutting ring is formed by a stainless steel barrel with a longitudinal opening. The split moulds are arranged in a different level mode according to the differences of diameters of central inner circles serving as characteristics, a plurality of split cutting rings with different thicknesses are configured on the split moulds with different levels of diameters of central inner circles, the combined type metal lantern ring can meet the requirement that a lateral restraining force is applied to various rock test samples with different diameters in the lateral restraint rock expansion test, so that the requirement for a lateral restraining force expansion test is met, and particularly field drilling rock cores can be directly used. The combined type metal lantern ring has the equivalent structural characteristics of existing metal lantern rings, and the technical conditions regulated by current railway rock testing regulations can be met.
Description
Technical field
The utility model belongs to the support equipment of construction work rock expansion tester device, particularly relates to a kind of sidewise restraint rock expansion test combined metal collar that has.
Background technology
Rock expansion test is various building lots, side slope, underground works and whether the rock as building materials had swelling property and test a kind of test of differentiation for every swellability index, and the application's subject content only relates to rock sidewise restraint rock expansion rate and expansion-pressure test.
There is the sidewise restraint swelling rate test to refer to the rock sample of a certain regulation shape, with hardware that its parcel is fastening in its side direction, make it under any state, not produce lateral deformation, then rock sample is inserted in the specific immersion container, the hardware bottom is permeable fixing, certain pressure is preset at the top, by the 5Kpa that is defined as of railway rock test rules (TB10115-98), keeps soaking after stable until saturated and monitor a kind of test of vertical deformation in its saturation history.
There is the sidewise restraint expansion-pressure test to refer to the rock sample of regulation shape is applied infinitely great lateral restriction, namely use the die trial of sufficient intensity in addition fastening, under the condition that lateral deformation must not occur, carry out vertical direction fixing after the immersion a kind of test that the pressure at right angle that produces detects of expanding.
By the regulation requirement of railway rock test rules (TB10115-98), the rock sample in the above-mentioned test places the metal collar.The metal collar is the fixedly limited whole closed loop configuration of specification of internal diameter, and height should hold rock sample and be positioned at the upper and lower metal porous disc at rock sample two ends.
Yet, because the difference of sample making course or on-the-spot boring with sampling situation tends to occur rock sample a lot of and that monoblock type metal collar inside calliper lattice are not inconsistent, if the various monoblock type metal collar of configuration diameter specifications adapts to numerous different-diameter rock sample like this and has certain practical difficulty, and because encircling the jail with the bulk metal cover after the saturated expansion of rock sample, removing sample makes both separation very difficult, therefore, in the practical operation of carrying out above-mentioned rules, exist the whole collar of fixed inner diameter can not satisfy rock sample diameter diversity, actual conditions that sample and the whole collar are difficult to separate after expanding and affect test and carry out smoothly.
Summary of the invention
The purpose of this utility model is to disclose a kind ofly can adapt to common multiple different-diameter rock sample and in order to what substitute the existing monoblock type closed loop metal collar the sidewise restraint rock expansion test combined metal collar arranged.
The utility model is taked following technical scheme for achieving the above object: this combined metal collar is comprised of split cavity and opening cutting ring two parts, described split cavity by the docking, both sides consist of with two semicircle moulds and the coupling bolt thereof of engaging lug, the height of described split cavity greater than the rock sample height less than rock sample and upper, lower metal porous disc height sum, the difference of described split cavity circular diameter in the center is as the setting of feature stepping, be that circular diameter is respectively φ 50mm in the split cavity center, φ 74mmm, three class of φ 93mm, be provided with the opening cutting ring in the center inner circle of described split cavity, the opening cutting ring is made of the stainless steel cylinder that is provided with longitudinal opening, the external diameter of opening cutting ring with highly respectively with split cavity center that stepping arranges in circular diameter and highly corresponding, the opening cutting ring that external diameter is identical divides into groups to arrange as feature take the difference of its wall thickness, and every group of opening cutting ring wall thickness range is 0.3-3.0mm.
The utility model can also be taked following technical measures:
The internal circular surfaces of described two semicircle moulds is provided with the permeable groove that crosses in length and breadth, and the horizontal permeable groove of two semicircle moulds connects.
The opening cutting ring of described same outer diameter as is respectively take the opening cutting ring of 4-9 kind wall thickness as one group.
Described opening cutting ring has permeable hole in the position distribution of the horizontal permeable groove of its corresponding semicircle mould.
The beneficial effects of the utility model and advantage are: the utility model is sorted out common in recent years indoor sample preparation and open-air drilling core by its external diameter, takes into full account the actual deviation that the rock diameter exists, and forms common rock sample diameter series.The difference of split cavity of the present utility model circular diameter in the center is as the feature stepping, the split cavity of circular diameter configures the opening cutting ring of several different wall in each grade center, and the combination collocation of the opening cutting ring of split cavity and different wall can make the rock sample of aforementioned diameter series form lateral restriction and make it drop into smoothly test.Particularly this combined metal collar can directly use open-air drilling core, has reduced the core secondary processing process.The utlity model has the design feature with the equivalence of the existing rules regulation bulk metal collar, can satisfy the technical requirement of existing railway rock test rules.The setting of split cavity and opening cutting ring is convenient to remove the rock sample that has expanded, the swollen drawback that extremely is difficult for rejecting that occurs after having avoided the existing bulk metal collar because of the rock sample water-swellable.But the rock sample that the utlity model has flexible combination simple in structure collocation, satisfied each diameter series and multiple diameter with minimum equipment applies the outstanding advantages of lateral restriction needs.
Description of drawings
Accompanying drawing 2 is semicircle mould inner circle structural representations.
Accompanying drawing 3 is that Figure 1A is to view.
Accompanying drawing 4 is split ring knife structure schematic diagram.
Accompanying drawing 5 is that Fig. 1 combined metal collar embodiment uses view.
Mark among the figure: 1 split cavity, semicircle mould before the 1a rear semicircle mould, 1b, the vertical permeable groove of 1-1, the horizontal permeable groove of 1-2,1-3 center inner circle, 2 bolts, 3 opening cutting rings, 3-1 longitudinal opening, 3-2 permeable hole, 4 rock samples.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
As shown in Figure 1, 2, 3, this combined metal collar is comprised of split cavity 1 and opening cutting ring 3 two parts, and split cavity 1 is made of the rear semicircle mould 1a with engaging lug, front semicircle mould 1b and the coupling bolt 2 that docking engages.The internal circular surfaces of two semicircle moulds is provided with vertical permeable groove 1-1 and the horizontal permeable groove 1-2 that crosses in length and breadth, and the horizontal permeable groove between the two semicircle moulds connects.
Less than rock sample and upper and lower metal porous disc height sum, upper and lower metal porous disc is the parts that regulation is used in the railway rock test rules (TB10115-98) to the height of diagram split cavity 1 greater than the rock sample height.
The external diameter of opening cutting ring is corresponding with circular diameter in the split cavity center that stepping arranges respectively, and namely the external diameter of opening cutting ring has three kinds of φ 50mm, φ 74mmm and φ 93mm.
The opening cutting ring of three kinds of external diameters of embodiment divides into groups to arrange as feature take the difference of wall thickness respectively, and wall thickness range is in the 0.3-3.0mm scope.
Be specially:
External diameter is the opening cutting ring of φ 50mm, and its wall thickness has four kinds of 0.3mm, 0.5mm, 1.0mm and 1.5mm.
External diameter is the opening cutting ring of φ 74mm, and its wall thickness has nine kinds of 0.5mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm, 1.8mm, 2.0mm, 2.50mm and 3.0mm.
External diameter is the opening cutting ring of φ 93mm, and its wall thickness has nine kinds of 0.5mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm, 1.8mm, 2.0mm, 2.50mm and 3.0mm.
The split cavity of above three kinds of different inner diameters can carry out respectively the metal collar of combination collocation formation different inner diameters with the opening cutting ring of different wall, can satisfy the different-diameter sample and apply the lateral restriction requirement.
Can find out from embodiment, this combined metal collar can satisfy the characteristics that all rock diameter specimen in each diameter series scope apply the lateral restriction needs with the collocation of minimum equipment and simple combination.
This combined metal of brief description collar uses step:
1. at first with slide calliper rule the rock sample external diameter that will test is measured, selected the opening cutting ring of corresponding split cavity and suitable wall thickness according to actual outside diameter, rock sample is inserted the opening cutting ring.
2. the opening cutting ring that will be enclosed with rock sample is inserted split cavity and is made it docking, wraps rock sample by the opening cutting ring by coupling bolt simultaneously with split cavity is fastening, makes it under any circumstance not produce lateral deformation.
3. the metal collar that step 2 is equipped with rock sample is put into saturated water tank, inserts upper and lower metal porous disc in the upper and lower surface of rock sample.
4. require to install relevant monitoring device according to pilot project, measure sample original height and set pressure and record start time, vertical deformation after upper load becomes free shape with the measurement immersion when carrying out swelling rate test.Should be fixed in vertical pressure rod bottom when carrying out bulging force when test upper load, detect its vertical force and monitor its vertical deformation not producing under vertical, the horizontal distortion condition, after it is stable, begin immersion.Require or measure its vertical deformation according to testing regulations, or measure simultaneously pressure at right angle; Sidewise restraint expansivity or expansion-pressure test are arranged respectively, reach immersion saturated stabilization time by the rules requirement, every measurement index is stablized constant rear dismounting measurement mechanism, and split cavity and sample are taken out from saturated water tank.
5. at first remove the split cavity coupling bolt with allen key, split split cavity, take out opening cutting ring and rock sample, firmly break the opening cutting ring into two with one's hands and make it and soak water swellable rock sample and separate.
6. clean respectively opening cutting ring and split cavity, wiped clean is for subsequent use.
Claims (4)
1. the sidewise restraint rock expansion test combined metal collar is arranged, it is characterized in that: this combined metal collar is comprised of split cavity and opening cutting ring two parts, described split cavity by the docking, both sides consist of with two semicircle moulds and the coupling bolt thereof of engaging lug, the height of described split cavity greater than the rock sample height less than rock sample and upper, lower metal porous disc height sum, the difference of described split cavity circular diameter in the center is as the setting of feature stepping, be that circular diameter is respectively φ 50mm in the split cavity center, φ 74mmm, three class of φ 93mm, be provided with the opening cutting ring in the center inner circle of described split cavity, the opening cutting ring is made of the stainless steel cylinder that is provided with longitudinal opening, the external diameter of opening cutting ring with highly respectively with split cavity center that stepping arranges in circular diameter and highly corresponding, the opening cutting ring that external diameter is identical divides into groups to arrange as feature take the difference of its wall thickness, and every group of opening cutting ring wall thickness range is 0.3-3.0mm.
2. the combined metal collar according to claim 1, it is characterized in that: the internal circular surfaces of described two semicircle moulds is provided with the permeable groove that crosses in length and breadth, and the horizontal permeable groove of two semicircle moulds connects.
3. the combined metal collar according to claim 1 is characterized in that: the opening cutting ring of described same outer diameter as is respectively take the opening cutting ring of 4-9 kind wall thickness as one group.
4. the combined metal collar according to claim 1, it is characterized in that: described opening cutting ring has permeable hole in the position distribution of the horizontal permeable groove of its corresponding semicircle mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422075 CN202770748U (en) | 2012-08-23 | 2012-08-23 | Combined type metal lantern ring for lateral restraint rock expansion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220422075 CN202770748U (en) | 2012-08-23 | 2012-08-23 | Combined type metal lantern ring for lateral restraint rock expansion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770748U true CN202770748U (en) | 2013-03-06 |
Family
ID=47777312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220422075 Withdrawn - After Issue CN202770748U (en) | 2012-08-23 | 2012-08-23 | Combined type metal lantern ring for lateral restraint rock expansion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770748U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830059A (en) * | 2012-08-23 | 2012-12-19 | 铁道第三勘察设计院集团有限公司 | Combined metal shrink ring for lateral restricted expansion test for rock |
| CN104374624A (en) * | 2014-11-19 | 2015-02-25 | 北京工业大学 | Geotechnical triaxial test sample preparation split round mold and sample preparation method |
| CN114705836A (en) * | 2022-04-15 | 2022-07-05 | 南京交通职业技术学院 | Expansive soil no-load expansion rate tester and testing method |
-
2012
- 2012-08-23 CN CN 201220422075 patent/CN202770748U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830059A (en) * | 2012-08-23 | 2012-12-19 | 铁道第三勘察设计院集团有限公司 | Combined metal shrink ring for lateral restricted expansion test for rock |
| CN102830059B (en) * | 2012-08-23 | 2014-10-01 | 铁道第三勘察设计院集团有限公司 | Combined metal shrink ring for lateral restricted expansion test for rock |
| CN104374624A (en) * | 2014-11-19 | 2015-02-25 | 北京工业大学 | Geotechnical triaxial test sample preparation split round mold and sample preparation method |
| CN114705836A (en) * | 2022-04-15 | 2022-07-05 | 南京交通职业技术学院 | Expansive soil no-load expansion rate tester and testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130306 Effective date of abandoning: 20141001 |
|
| RGAV | Abandon patent right to avoid regrant |