CN110487586A - A kind of weak soil sampler of indoor model test - Google Patents
A kind of weak soil sampler of indoor model test Download PDFInfo
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- CN110487586A CN110487586A CN201910762126.5A CN201910762126A CN110487586A CN 110487586 A CN110487586 A CN 110487586A CN 201910762126 A CN201910762126 A CN 201910762126A CN 110487586 A CN110487586 A CN 110487586A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention provides a kind of weak soil sampler of indoor model test, weak soil sampler samples outer tube by thin-walled and thin-walled sampling inner tube forms; thin-walled, which samples, has sliding rail on outer tube; the first sliding block and the second sliding block are equipped in sliding rail; the first sliding block and the second sliding block are welded with corresponding screw rod respectively;, it can be achieved that two panels thin-walled samples inner tube samples the rotation in outer tube in thin-walled by the handle or driving motor that are welded in junction steel plate；When weak soil sampler injection, thin-walled samples internal tube shrinks in thin-walled sampling outer tube, reduces the contact area with weak soil, reduces the disturbance to weak soil.After weak soil sampler injection, thin-walled sampling inner tube can be rotated by handle or driving motor and weak soil is cut；Weak soil sampler is taken out finally by upper handle.After soil sample is taken out, nut dismounting can be taken out screw rod and the first sliding block, the second sliding block, remove thin-walled sampling outer tube and thin-walled samples inner tube, reduce the disturbance to soil sample.
Description
Technical field
The invention belongs to Geotechnical Engineering fields, more particularly, to a kind of weak soil sampler of indoor model test.
Background technique
With the high speed development that China's geotechnical engineering is built, the engineering construction scale of construction of today is increasing, and difficulty is increasingly
Height has very big challenge for geotechnical engineering circle, and there are many urgent problems to be solved.Many times existing specification
Provision can not carry out effective design guidance to geotechnical engineering, need to carry out indoor model test to concrete engineering and specific operating condition
It is studied.
In southeastern coast region, especially Along Zhejiang Coast region, shallow-layer be distributed with more mud, muck soil, clay with
Silty clay, these weak soils have the characteristics that it is structural it is strong, intensity is low, high sensitivity, compressibility are high.
The engineering characteristic of weak soil is most important for stablizing for building structure, and the research of Technical Characteristics of Mild Clay is often adopted
With indoor unit test and indoor model test.And the intensity index for how obtaining model test soil is a puzzlement geotechnical engineering
The problem of teacher.Currently, the intensity index for indoor model test soil obtains, frequently with indoor home position testing method, such as: it is micro-
The methods of type vane shear test, the test of miniature penetrometer, the test of T shape penetrometer and spherical penetrometer test are to soil strength
It is evaluated；Or theoretical analysis and indoor unit test method(s).Indoor unit test method(s) tries after often remolding to weak soil
It tests, can not reflect intensity index of the true soil body indoors after model test.
Therefore, by being sampled to the weak soil after indoor model test, reflected by indoor unit test in situ soft
The intensity index of soil is a kind of more accurate method, has stronger feasibility.Therefore, it develops a kind of for indoor model examination
The simple weak soil sampler tested has important scientific research meaning and engineering value.
Summary of the invention
It is practical and lesser indoor model is disturbed to weak soil the object of the present invention is to provide a kind of easy to operate
The weak soil sampler of test.
For this purpose, above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of weak soil sampler of indoor model test, the weak soil sampler of the indoor model test include thin-walled sampling
Outer tube and thin-walled sample inner tube, and the internal diameter of the thin-walled sampling outer tube is identical as the thin-walled sampling outer diameter of inner tube, and the thin-walled takes
The lower part of sample outer tube and thin-walled sampling inner tube all has blade foot, and the both ends that the thin-walled sampling outer tube and thin-walled sample inner tube are
Side wall through form, and thin-walled sampling outer tube is in the arc surface for being more than 180 degree, and it includes first thin-walled that thin-walled, which samples inner tube,
It samples inner tube and second thin-walled samples inner tube, first thin-walled sampling inner tube and second thin-walled sampling inner tube can be with
It is rotated along the circumferencial direction of thin-walled sampling outer tube inner sidewall and the side wall of thin-walled sampling outer tube and thin-walled is made to sample inner tube
Side wall forms closure tubular, and first thin-walled sampling inner tube and second thin-walled sample in the thin-walled sampling that inner tube is spliced to form
The side wall of pipe is the arc surface in 180 degree, and the side wall of thin-walled sampling outer tube and the side wall of thin-walled sampling inner tube form closed barrel
When shape, the redundancy portion of two pieces of opposite overlappings is formed between the side wall of thin-walled sampling outer tube and the side wall of thin-walled sampling inner tube；Institute
The side wall and thin-walled that first thin-walled sampling inner tube and second thin-walled sampling inner tube are stated in thin-walled sampling outer tube sample inner tube
Side wall forms the end spliced when closure tubular and is respectively provided with the first section and the second section, and first thin-walled samples inner tube
First section and the second section of second thin-walled sampling inner tube are in first thin-walled sampling inner tube and second thin-walled sampling
Pipe cuts sample to weak soil along lower formed of circumferencial direction rotation of thin-walled sampling outer tube inner sidewall.
The present invention can also be used or be combined and adopt the following technical scheme that while using above technical scheme
As the preferred technical solution of the present invention, thin-walled samples the side wall of outer tube and the side wall of thin-walled sampling inner tube forms closed barrel
When shape, first thin-walled is stacked before and after sampling the first section of inner tube and the second section of second thin-walled sampling inner tube.
As the preferred technical solution of the present invention, the side wall of the thin-walled sampling outer tube of the weak soil sampler is in 225 degree
Arc surface, first, the side wall of second thin-walled sampling inner tube be arc surface and the first section and second in 112.5 degree
The side wall for the thin-walled sampling inner tube that phase poststack is spliced into before and after section is the arc surface in 180 degree.
As the preferred technical solution of the present invention, the top of the thin-walled sampling outer tube is equipped with along thin-walled sampling outer tube
The circumferentially disposed sliding rail of circumferential wall, is equipped with the first sliding block and the second sliding block in the sliding rail, first sliding block and
Second sliding block can slide in the sliding track, and the first sliding block and the second sliding block are respectively equipped in first thin-walled sampling
The screw rod of pipe and second thin-walled sampling inner tube, the other end of the screw rod be each passed through the junction steel plate that one piece upwardly extends and
This one end that screw rod passes through junction steel plate is equipped with fixture nut.
As the preferred technical solution of the present invention, the upper end of the junction steel plate is equipped with handle, the hand grip portion of the handle
Divide the periphery towards thin-walled sampling outer tube, the handle is for driving first thin-walled sampling inner tube or second thin-walled
It samples inner tube and forms first section of first thin-walled sampling inner tube and the second section of second thin-walled sampling inner tube to weak soil
It cuts sample and is lifted up weak soil sampler.
As the preferred technical solution of the present invention, the upper end of the junction steel plate is equipped with driving motor, the driving motor
For driving first thin-walled sampling inner tube or second thin-walled sampling inner tube to form the first of first thin-walled sampling inner tube
Sample is cut to weak soil in section and the second section of second thin-walled sampling inner tube.
The present invention provides a kind of weak soil sampler of indoor model test, has the following beneficial effects:
Weak soil sampler samples outer tube by thin-walled and thin-walled sampling inner tube forms, and thin-walled, which samples, has sliding rail on outer tube,
The first sliding block and the second sliding block are equipped in sliding rail, the first sliding block and the second sliding block are welded with corresponding screw rod respectively, screw rod
It is fixed across thin-walled sampling inner tube with junction steel plate and by fixture nut, by the handle or the driving that are welded in junction steel plate
Motor is, it can be achieved that two panels thin-walled samples rotation of the inner tube in thin-walled sampling outer tube；When weak soil sampler injection, thin-walled sampling
Internal tube shrinks reduce the contact area with weak soil, reduce the disturbance to weak soil in thin-walled sampling outer tube.Weak soil sampling dress
After setting injection, thin-walled sampling inner tube can be rotated by handle or driving motor and weak soil is cut；Finally by upper carrying handle
Hand takes out weak soil sampler.After soil sample is taken out, nut dismounting can be taken out screw rod and the first sliding block, the second sliding block, removed
Thin-walled samples outer tube and thin-walled samples inner tube, reduces the disturbance to soil sample.Weak soil sampler is easy to operate, disturbs to weak soil
Dynamic smaller, sampling quality is guaranteed, and accurately undisturbed sample parameter can be provided for indoor model test.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the weak soil sampler of indoor model test provided by the invention.
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Fig. 3 a is the sectional view under weak soil sampler opening state at handle.
Fig. 3 b is the sectional view under weak soil sampler closed state at handle.
Fig. 4 a is the sectional view under weak soil sampler opening state at junction steel plate.
Fig. 4 b is the sectional view under weak soil sampler closed state at junction steel plate.
The sectional view of weak soil sampler lower part under Fig. 5 a weak soil sampler opening state.
Fig. 5 b is the sectional view of weak soil sampler lower part under weak soil sampler closed state.
Specific embodiment
The present invention is described in further detail referring to specific embodiment.
A kind of weak soil sampler of indoor model test, including thin-walled sampling outer tube 1 and thin-walled sample inner tube 2, thin-walled
The internal diameter for sampling outer tube 1 is identical as the thin-walled sampling outer diameter of inner tube 2, and thin-walled samples outer tube 1 and the lower part of thin-walled sampling inner tube 2 is equal
With blade foot 3, the both ends of thin-walled sampling outer tube 1 and thin-walled sampling inner tube 2 are through form, and the side of thin-walled sampling outer tube 1
Wall is in the arc surface for being more than 180 degree, and it includes first thin-walled sampling inner tube 21 and second thin-walled sampling that thin-walled, which samples inner tube 2,
Inner tube 22, first thin-walled sampling inner tube 21 and second thin-walled sampling inner tube 22 can sample 1 inside of outer tube along thin-walled
The circumferencial direction of wall rotates and makes the side wall of thin-walled sampling outer tube 1 and the side wall of thin-walled sampling inner tube 2 to form closure tubular, the
The side wall for the thin-walled sampling inner tube 2 that a piece of thin-walled sampling inner tube 21 and second thin-walled sampling inner tube 22 are spliced to form be in
The arc surface of 180 degree, and the side wall of thin-walled sampling outer tube 1 and the side wall of thin-walled sampling inner tube 2 are formed when being closed tubular, thin-walled takes
The redundancy portion that two pieces of opposite overlappings are formed between the side wall of side wall and thin-walled the sampling inner tube 2 of sample outer tube 1, referring to Fig. 5 b；The
A piece of thin-walled sampling inner tube 21 and second thin-walled sampling inner tube 22 sample the side wall and thin-walled sampling inner tube 2 of outer tube 1 in thin-walled
Side wall the end spliced be respectively provided with the first section 211 and the second section 221 when forming closure tubular, and first thin-walled takes
First section 211 of sample inner tube 21 and the second section 221 of second thin-walled sampling inner tube 22 sample inner tube in first thin-walled
21 and second thin-walled sampling inner tube 22 weak soil is cut along circumferencial direction rotation lower formed of thin-walled sampling 1 inner sidewall of outer tube
Sample.
Thin-walled samples the side wall of outer tube 1 and the side wall of thin-walled sampling inner tube 2 is formed when being closed tubular, first thin-walled sampling
It is stacked before and after first section 211 of inner tube 21 and the second section 221 of second thin-walled sampling inner tube 22.Certainly other real
It applies in example, first thin-walled samples the first section 211 of inner tube 21 and the second section 221 of second thin-walled sampling inner tube 22
It opposite can contact and be stacked without forming front and back, and these variations are fallen within the scope of protection of the present invention.
The side wall of the thin-walled sampling outer tube 1 of weak soil sampler is in 225 degree of arc surface, and first, second thin-walled take
The side wall of sample inner tube is to be spliced into 112.5 degree of arc surface and the first section 211 and 221 front and back phase poststack of the second section
Thin-walled sampling inner tube 2 side wall be in 180 degree arc surface.
The top that thin-walled samples outer tube 1 is equipped with the sliding rail 6 circumferentially disposed along the circumferential wall of thin-walled sampling outer tube 1,
The first sliding block 71 and the second sliding block 72 are equipped in sliding rail 6, the first sliding block and the second sliding block can be slided in sliding rail 6
Dynamic, the first sliding block and the second sliding block are respectively equipped with and sample inner tube 22 across first thin-walled sampling inner tube 21 and second thin-walled
Screw rod 8, the other end of screw rod 8 be each passed through one piece of junction steel plate upwardly extended 4 and screw rod 8 pass through junction steel plate 4 this
End is equipped with fixture nut 9.
The upper end of junction steel plate 4 is equipped with handle 5, and the holding of handle 5 is partially toward the periphery of thin-walled sampling outer tube 1,
Handle 5 is for driving first thin-walled sampling inner tube 21 or second thin-walled sampling inner tube 22 to be formed in first thin-walled sampling
First section 211 of pipe 21 and the second section 221 of second thin-walled sampling inner tube 22 are cut sample to weak soil and are lifted up soft
Native sampler.
In other examples, the upper end of junction steel plate 4 is also provided with driving motor, and driving motor is for driving the
A piece of thin-walled sampling inner tube 21 or second thin-walled sampling inner tube 22 form the first section of first thin-walled sampling inner tube 21
211 and the second section 221 of second thin-walled sampling inner tube 22 sample is cut to weak soil.Certainly in other embodiments, can also deposit
It deforms, and falls within the scope of protection of the present invention in others.
First 21, second 22 thin-walled sampling inner tube of described two 112.5 degree of arc surfaces is placed in 225 degree of circular arcs
In the thin-walled sampling outer tube 1 in face；First sliding block 71, the second sliding block 72 are welded with screw rod 8 respectively, and are placed in thin-walled sampling outer tube
In 1 sliding rail 6, screw rod 8 passes through thin-walled sampling outer tube 1 and thin-walled samples inner tube 2；Handle 5 is welded on junction steel plate 4, is led to
It crosses nut 9 junction steel plate 4 is anchored on thin-walled sampling inner tube 2.In use, thin-walled sampling inner tube 2 is taken in thin-walled sampling
In outer tube 1, thin-walled is vertically sampled by inner tube 2 by handle 5 and thin-walled samples in the slow injection weak soil of blade foot 3 of outer tube 1；Slowly
After injection weak soil sampler to distance to a declared goal, two panels thin-walled is sampled inner tube rotary cutting weak soil by swing handle 5, is rotated by 90 °
Two panels thin-walled sampling inner tube closure, cutting finish afterwards；Handle 5 is above mentioned, entire weak soil sampler is taken out；Weak soil sampling dress
After setting taking-up, nut 9 is dismantled, the first sliding block 71 of extraction, the second sliding block 72 and screw rod 8 skid off thin-walled sampling outer tube 1, and skid off
First thin-walled sampling inner tube 21 and second thin-walled sample inner tube 22, complete the sampling of weak soil.Weak soil is sampled and carries out difference
The cutting of shape can carry out basic soil body physical characteristic test, one-dimensional compression test, direct shear test, triaxial test etc..
The physico mechanical characteristic index parameter of indoor original state weak soil can be provided for indoor model test.
Above-mentioned specific embodiment is used to illustrate the present invention, is merely a preferred embodiment of the present invention, rather than to this
Invention is limited, and within the spirit of the invention and the scope of protection of the claims, to any modification of the invention made, is equal
Replacement, improvement etc., both fall within protection scope of the present invention.
Claims (6)
1. a kind of weak soil sampler of indoor model test, which is characterized in that the weak soil of the indoor model test samples dress
It sets and samples outer tube and thin-walled sampling inner tube, the internal diameter and the outer diameter phase of thin-walled sampling inner tube of the thin-walled sampling outer tube including thin-walled
Together, the lower part of the thin-walled sampling outer tube and thin-walled sampling inner tube all has blade foot, the thin-walled sampling outer tube and thin-walled sampling
The both ends of inner tube are through form, and the side wall of thin-walled sampling outer tube is in the arc surface for being more than 180 degree, and thin-walled samples inner tube
Inner tube, first thin-walled sampling inner tube and second thin-walled are sampled including first thin-walled sampling inner tube and second thin-walled
Sampling inner tube can along thin-walled sample outer tube inner sidewall circumferencial direction rotate and make thin-walled sampling outer tube side wall with
The side wall that thin-walled samples inner tube forms closure tubular, and first thin-walled sampling inner tube and second thin-walled sample the spliced shape of inner tube
At the side wall of thin-walled sampling inner tube be arc surface in 180 degree, and the side wall of thin-walled sampling outer tube and thin-walled sampling inner tube
When side wall forms closure tubular, two pieces of opposite weights are formed between the side wall of thin-walled sampling outer tube and the side wall of thin-walled sampling inner tube
Folded redundancy portion；First thin-walled sampling inner tube and second thin-walled sampling inner tube are in the side wall of thin-walled sampling outer tube and thin
The side wall of wall sampling inner tube forms the end spliced when closure tubular and is respectively provided with the first section and the second section, and first thin
Wall samples the first section of inner tube and the second section of second thin-walled sampling inner tube and samples inner tube and second in first thin-walled
Piece thin-walled samples inner tube and cuts sample to weak soil along lower formed of circumferencial direction rotation of thin-walled sampling outer tube inner sidewall.
2. the weak soil sampler of indoor model test according to claim 1, which is characterized in that thin-walled samples outer tube
When side wall and the side wall of thin-walled sampling inner tube form closure tubular, the first section of first thin-walled sampling inner tube and second thin
It is stacked before and after second section of wall sampling inner tube.
3. the weak soil sampler of indoor model test according to claim 2, which is characterized in that the weak soil sampling dress
The side wall for the thin-walled sampling outer tube set is in 225 degree of arc surface, and the side wall of first, second thin-walled sampling inner tube is to be in
The side wall for the thin-walled sampling inner tube that phase poststack is spliced into before and after 112.5 degree of arc surface and the first section and the second section be in
The arc surface of 180 degree.
4. the weak soil sampler of indoor model test according to claim 1, which is characterized in that the thin-walled sampling is outer
The top of pipe is equipped with the sliding rail circumferentially disposed along the circumferential wall of thin-walled sampling outer tube, is equipped with first in the sliding rail
Sliding block and the second sliding block, the first sliding block and the second sliding block are respectively equipped with to be taken across first thin-walled sampling inner tube and second thin-walled
The screw rod of sample inner tube, the other end of the screw rod is each passed through the junction steel plate that one piece upwardly extends and screw rod passes through junction steel plate
This one end be equipped with fixture nut.
5. the weak soil sampler of indoor model test according to claim 4, which is characterized in that the junction steel plate
Upper end is equipped with handle, and holdings of the handle is partially toward the periphery of thin-walled sampling outer tube, and the handle is for driving the
A piece of thin-walled sampling inner tube or second thin-walled sampling inner tube form the first section and second of first thin-walled sampling inner tube
Sample is cut to weak soil and is lifted up weak soil sampler in second section of piece thin-walled sampling inner tube.
6. the weak soil sampler of indoor model test according to claim 4, which is characterized in that the junction steel plate
Upper end is equipped with driving motor, and the driving motor is for driving first thin-walled sampling inner tube or second thin-walled to sample inner tube
Is cut to weak soil by sample for second section of the first section and second thin-walled sampling inner tube that form first thin-walled sampling inner tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910762126.5A CN110487586B (en) | 2019-08-19 | 2019-08-19 | Soft soil sampling device for indoor model test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910762126.5A CN110487586B (en) | 2019-08-19 | 2019-08-19 | Soft soil sampling device for indoor model test |
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| CN110487586A true CN110487586A (en) | 2019-11-22 |
| CN110487586B CN110487586B (en) | 2021-09-14 |
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| CN201910762126.5A Active CN110487586B (en) | 2019-08-19 | 2019-08-19 | Soft soil sampling device for indoor model test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179703A (en) * | 2020-10-14 | 2021-01-05 | 候刚 | Sampling device for soil remediation |
| CN113358392A (en) * | 2020-03-06 | 2021-09-07 | 靳职锋 | Mechanical device for taking undisturbed sample in exploratory well on ground |
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| CN211122048U (en) * | 2019-08-19 | 2020-07-28 | 中国电建集团华东勘测设计研究院有限公司 | Soft soil sampling device for indoor model test |
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| CN110487586B (en) | 2021-09-14 |
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