CN206876498U - The indoor test device of anchor stress loss - Google Patents
The indoor test device of anchor stress loss Download PDFInfo
- Publication number
- CN206876498U CN206876498U CN201720720126.5U CN201720720126U CN206876498U CN 206876498 U CN206876498 U CN 206876498U CN 201720720126 U CN201720720126 U CN 201720720126U CN 206876498 U CN206876498 U CN 206876498U
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- free steel
- jack
- side plate
- steel plate
- plate
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Abstract
The utility model provides a kind of indoor test device of anchor stress loss, includes the model casing, two blocks of free steel plates, two jack, hollow jack and cushion block for being used to support free steel plate of inside and outside two casings.Two jack are fixed on free steel plate center with bolt, are connected with flexible connecting member between two free steel plates, and two free steel plates are in close contact with outer container side wall, pay attention to maintaining stress stability during hollow jack drawing bolt model.The indoor test apparatus structure of anchor stress loss provided by the utility model is simple and convenient to operate, and measurement error is small, precision is high, and boundary condition and experimental variable are easily controllable.The device and method can apply in theoretical validation and practice operation, and the improvement of guidance and detail design to job site is respectively provided with significance.
Description
Technical field
The utility model belongs to technical field of civil engineering, more particularly to a kind of indoor test device of anchor stress loss
And method.
Background technology
In Geotechnical Engineering, the use of anchor pole is with a long history, and anchor pole is widely used in the supporting in foundation ditch, tunnel etc.,
Due to the complexity of anchor pole-force-bearing of surrounding rock mass, stress loss problem is all aobvious to designing and constructing in the soil body after research anchor pole tensioning
Obtain particularly important.
Stress loss problem after research anchor pole tensioning, will go out jointly in terms of field experiment and simulating lab test two
Hair.Based on field experiment, the force Distribution after anchor pole tensioning substantially in the soil body can be obtained, but due to field condition pole
It is complicated, no matter all larger in financial cost and human cost, error is also larger in anchor pole stretching machine progress stretching process, and
And boundary condition is difficult to control to study the influence of different factors.Relative to field experiment, simulating lab test is simple and easy, right
In proof theory analysis conclusion and instruct site operation and Curve guide impeller that there is epochmaking meaning.Therefore, development is a kind of real
The method for testing the loss of indoor test anchor stress is particularly important.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provide a kind of loss of anchor stress indoor test device and
Method.
The utility model concrete technical scheme is as follows：
The utility model provides a kind of indoor test device of anchor stress loss, including model casing, the model casing
Including the first casing, first side plate of first casing including bottom plate and the connection of head and the tail successively being located on the bottom plate,
Second side plate, the 3rd side plate and the 4th side plate；First side plate interior sides are vertically provided with the first free steel plate, second side
Plate inner vertical is provided with the second free steel plate, the first free steel plate, the second free steel plate, first side plate, institute
State the second side plate and the bottom plate encloses the second casing, be filled with the soil body in second casing, plugged in the soil body
There is anchor pole, the anchor pole outer cover is provided with hollow jack；The is provided between the first free steel plate and the 4th side plate
One jack, the second jack is provided between the second free steel plate and the 3rd side plate.
Further, the described first free steel plate is connected with flexible connecting member with the described second free steel plate adjacent.
Further, it is provided with cushion block between the hollow jack bottom and soil body top.
Further, the first jack both ends be bolted on respectively the described first free steel plate center and
On 4th side plate；The second jack both ends are bolted on the described second free steel plate center and institute respectively
State on the 3rd side plate,
The beneficial effects of the utility model are as follows：The indoor test device of anchor stress loss provided by the utility model,
As a result it is simple and convenient to operate, measurement error is small, precision is high, and boundary condition and experimental variable are easily controllable.The device and side
Method can apply in theoretical validation and practice operation, and the improvement of guidance and detail design to job site is respectively provided with important meaning
Justice.
Brief description of the drawings
Fig. 1 is a kind of top view of the indoor test device of anchor stress loss described in embodiment 1；
Fig. 2 is a kind of longitudinal sectional view of the indoor test device of anchor stress loss described in embodiment 1；
Fig. 3 is a kind of stereogram of the indoor test device of anchor stress loss described in embodiment 1.
Wherein：1st, bottom plate；2nd, the first side plate；3rd, the second side plate；4th, the 3rd side plate；5th, the 4th side plate；6th, the first free steel
Plate；7th, the second free steel plate；8th, the soil body；9th, anchor pole；10th, hollow jack；11st, the first jack；12nd, the second jack；13、
Flexible connecting member；14th, cushion block.
Embodiment
The utility model is described in further detail with following examples below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figures 1 to 3, the utility model embodiment 1 provides a kind of indoor test device of anchor stress loss, bag
Include model casing, the model casing includes the first casing, first casing include bottom plate 1 and be located on the bottom plate 1 according to
The first side plate 2, the second side plate 3, the 3rd side plate 4 and the 4th side plate 5 of secondary head and the tail connection；The inner vertical of first side plate 2
Provided with the first free steel plate 6, the inner vertical of the second side plate 3 is provided with the second free steel plate 7, the first free steel plate 6, institute
State the second free steel plate 7, first side plate 2, second side plate 3 and the bottom plate 1 and enclose the second casing, described
One free steel plate 6 is connected with canvas 13 with the described second free adjacent of steel plate 7, and the soil body 8, institute are filled with second casing
State and anchor pole 9 is inserted with the soil body 8, the outer cover of anchor pole 9 is provided with hollow jack 10；The first free steel plate 6 with it is described
The first jack 11 is provided between 4th side plate 5, the 2000th is provided between the second free steel plate 7 and the 3rd side plate 4
Jin top 12.Cushion block 14 is provided between the bottom of hollow jack 10 and the top of the soil body 8.
Design of test box used in experiment is square steel box section, and using cast-in-place mortar as anchorage body, with pad
Block 14 replaces anchor cable pallet, and cushion block 14 is using concrete for making and adds gypsum increasing its intensity, and cushion block 14 is equal in Practical Project
To be square, casing upper surface is square, in order to which the counter-force for preferably providing anchor pole 9 is uniformly delivered on the soil body 8, thus it is real
Test the square cushion block 14 of selection.First free steel plate 6 and the connecting place of the first side plate 2, the second free phase of 7 and second side plate of steel plate 3
Left no gaps at even, and lubriation material can be smeared, to reduce resistance suffered by the first free 6 and second free steel plate 7 of steel plate, and
Ensure from gap not gushing out to free steel plate 1 and the soil body 8 in the free pressure process of steel plate 2.First free steel plate 6 and second
The free adjacent of steel plate 7 is connected with flexible connecting member 13, and the flexible connecting member 13 is preferably canvas, it is ensured that two steel plates squeeze
The soil body 8 will not flow out from the gap between two steel plates during pressure.
During test, the soil body 8 is applied by the first jack 11 and the second jack 12 according to requirement of experiment tested first
The confined pressure value of design, then apply prestressing force to anchor pole 9 by hollow jack 11, the lower end of hollow jack 10 is withstood on cushion block 14,
Power is uniformly conducted on the soil body 8 by cushion block 14；After applied stress reaches experimental design value, hollow jack 10 stops
Load and remain stable.Each jack is not unloaded to ensure stress stability in anchor pole 9 in experimentation, is reduced because hollow very heavy
The loading of top 10 causes stress loss.Experimental data is recorded using static Acquisition Instrument, you can obtain the stress of anchor pole 9 with the time
Changing value.
Embodiment 2
The present embodiment 2 provides a kind of indoor test device of anchor stress loss, the implementation on the basis of embodiment 1
Example 2 further define the both ends of the first jack 11 be bolted on respectively the described first free center of steel plate 6 with
And on the 4th side plate 5；The both ends of second jack 12 are bolted on the described second free center of steel plate 7 respectively
And on the 3rd side plate 4.
The first jack 11 and the second jack 12 are bolted, it is uniform per side earth stress to ensure.1000th
Jin top 11 and the second jack 12 are preferably hydraulic jack, apply pressure, the first free steel plate 6 and the by hydraulic jack
Two free steel 7 produce lateral pressure under the first jack 11 and the effect of the second jack 12 to the soil body 8, change the soil body 8 with this
Confined pressure.Pressure values are shown by oil pressure gauge, it is known that the pressure that the first free 6 and second free steel plate 7 of steel plate applies to the soil body 8,
It can thus be concluded that arrive confined pressure in the soil body 8.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, however, make any change in its shape or structure, it is every that there is same as the present application or phase
Approximate technical scheme, all falls within the scope of protection of the utility model.
Claims (4)
1. a kind of indoor test device of anchor stress loss, it is characterised in that including model casing, the model casing includes first
Casing, first side plate (2) of first casing including bottom plate (1) and the connection of head and the tail successively being located on the bottom plate (1),
Second side plate (3), the 3rd side plate (4) and the 4th side plate (5)；First side plate (2) inner vertical is provided with the first free steel
Plate (6), the second side plate (3) inner vertical are provided with the second free steel plate (7), the first free steel plate (6), described second
Free steel plate (7), first side plate (2), second side plate (3) and the bottom plate (1) enclose the second casing, described
The soil body (8) is filled with second casing, anchor pole (9) is inserted with the soil body (8), anchor pole (9) outer cover is provided with hollow
Jack (10)；It is provided with the first jack (11) between the first free steel plate (6) and the 4th side plate (5), described
The second jack (12) is provided between two free steel plates (7) and the 3rd side plate (4).
2. the indoor test device of anchor stress loss as claimed in claim 1, it is characterised in that the first free steel plate
(6) it is connected with flexible connecting member (13) with the described second free steel plate (7) adjacent.
3. the indoor test device of anchor stress loss as claimed in claim 1, it is characterised in that the hollow jack
(10) it is provided with cushion block (14) between bottom and the soil body (8) top.
4. the indoor test device of anchor stress loss as claimed in claim 1, it is characterised in that first jack
(11) both ends are bolted on the described first free steel plate (6) center and the 4th side plate (5) respectively；Described
Two jack (12) both ends are bolted on the described second free steel plate (7) center and the 3rd side plate (4) respectively
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720720126.5U CN206876498U (en) | 2017-06-20 | 2017-06-20 | The indoor test device of anchor stress loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720720126.5U CN206876498U (en) | 2017-06-20 | 2017-06-20 | The indoor test device of anchor stress loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206876498U true CN206876498U (en) | 2018-01-12 |
Family
ID=61333584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720720126.5U Withdrawn - After Issue CN206876498U (en) | 2017-06-20 | 2017-06-20 | The indoor test device of anchor stress loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206876498U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269743A (en) * | 2018-08-21 | 2019-01-25 | 河北建筑工程学院 | A kind of ground seismic wave function lower bolt dynamic pull-out test device and test method |
| CN111198096A (en) * | 2019-12-09 | 2020-05-26 | 河北建筑工程学院 | Soil anchor rod drawing test device and test method considering grouting pressure |
| CN112730055A (en) * | 2020-12-18 | 2021-04-30 | 三峡大学 | Testing device and method for simulating drawing of deep soil layer constant-resistance soil anchor |
-
2017
- 2017-06-20 CN CN201720720126.5U patent/CN206876498U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269743A (en) * | 2018-08-21 | 2019-01-25 | 河北建筑工程学院 | A kind of ground seismic wave function lower bolt dynamic pull-out test device and test method |
| CN109269743B (en) * | 2018-08-21 | 2020-07-31 | 河北建筑工程学院 | Dynamic anchor rod drawing test device and method under action of seismic waves |
| CN111198096A (en) * | 2019-12-09 | 2020-05-26 | 河北建筑工程学院 | Soil anchor rod drawing test device and test method considering grouting pressure |
| CN111198096B (en) * | 2019-12-09 | 2022-01-14 | 河北建筑工程学院 | Soil anchor rod drawing test device and test method considering grouting pressure |
| CN112730055A (en) * | 2020-12-18 | 2021-04-30 | 三峡大学 | Testing device and method for simulating drawing of deep soil layer constant-resistance soil anchor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180112 Effective date of abandoning: 20210730 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180112 Effective date of abandoning: 20210730 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |