CN101592564B - Press-in gravity sampler for sludge storage yards and dredge fill fields and sampling method - Google Patents

Press-in gravity sampler for sludge storage yards and dredge fill fields and sampling method Download PDF

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Publication number
CN101592564B
CN101592564B CN2009100320418A CN200910032041A CN101592564B CN 101592564 B CN101592564 B CN 101592564B CN 2009100320418 A CN2009100320418 A CN 2009100320418A CN 200910032041 A CN200910032041 A CN 200910032041A CN 101592564 B CN101592564 B CN 101592564B
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China
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semicircular cylinder
sampler
slip
gravity
pressed
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CN101592564A (en
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高玉峰
周源
洪振舜
陶辉
黎冰
桂跃
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Hohai University HHU
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Hohai University HHU
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Abstract

The invention provides a press-in gravity sampler structure for acquiring a high-water content flow state soft soil or sludge undisturbed sample in a sludge field or dredge fill field and an installation and using method. The press-in gravity sampler structure can sample according to the conditions of soft flow state soil in the depth direction of the sludge storage yards and dredge fill fields. The whole structure of the sampler comprises three parts: 1) a fixed semi-cylinder, 2) a sliding semi-cylinder, and 3) an internal transverse separation insert piece. The sampler adopts modular design and can control sample separation length as well as the size of a sampling region and sampling precision. During use, the sampler is simple, light, simple and convenient in operation, high in efficiency and low in sampling cost.

Description

What be used for mud stockyard and blast-filled ground is pressed into gravity sampler and sampling method
Technical field
The present invention relates to a kind of portable original position high-moisture percentage fluidised form weak soil or mud original state sample sampler and sampling method that in mud stockyard and hydraulic reclamation epeirogenetic place, uses, be to be directed to rare plastic flow attitude soil property situation that mud stockyard and blast-filled ground occur especially and the light-duty in-situ test instrument that designs belongs to correlative technology fields such as Geotechnical Engineering and environmental engineering on depth direction.
Background technology
In the training of channel desilting engineering and the engineering of reclaiming land from the sea, all can run into the hydraulic reclamation solidification problem of the high-moisture percentage soil body.For hydraulic reclamation the place of high-moisture percentage mud, if the impeded drainage in place or hydraulic reclamation soil body clay content are higher, then consolidation settlement will be a very long process.In the middle of this very long process, through the surface evaporation of exposing to the weather for a long time, can form the thicker crust layer of one deck at the barged-in fill laminar surface, be mingled with herbal rhizome residue, make veneer of soil have certain apparent intensity, but most of engineering monitoring results show that the soil body is still keeping very high water percentage at underground certain depth place, or even a kind of semifluid form near original state; Though the top layer soil body has certain intensity and can the pedestrian, all is difficult to enter the place for some small-sized boring mechanics, more need not carry big machinery.Carry out the project of further engineering and the expropriation of land engineering of second ploughing as early as possible for the land used of being eager, being difficult to of blast-filled ground geotechnical investigation is the problem of restriction.Conventional boring with sampling method is not suitable for the mud blast-filled ground, and the one, because boring mechanic is too heavy, muck surface holds can't stand such weight, the 2nd, promptly enable to take out the globality sample, also can in transportation, take place mobile and destroy original architectural feature.Add the original position soil test that some are commonly used, all need the engineer geological prospecting in early stage as standard penetration test (SPT), four-bladed vane test, static sounding etc. with better reliability and accuracy.So be badly in need of developing a kind of light-duty portable sample apparatus that in mud stockyard and blast-filled ground, can in the silt seam of rare soft flow, obtain not disturbance of original state sample, to solve problem actual in the engineering.
Summary of the invention
The objective of the invention is to propose a kind of portable multi-function sampler and corresponding sampling method that can in mud stockyard and the rare plastic flow attitude of blast-filled ground mud layer, carry out boring with sampling, to solve the sampling shop problem when other large-scale boring mechanics can't enter the place, provide sampling result, for engineering provides reliable geologic information.It is mud stockyard and mud blast-filled ground that the present invention mainly is suitable for the geology place, has rare soft silt seam under it, and the bearing capacity weakness.
Solution of the present invention
The present invention proposes can be at the portable gravity sampler and the corresponding sampling method of being pressed into that carry out boring with sampling in mud stockyard and the rare plastic flow attitude of blast-filled ground mud layer, and its one-piece construction comprises 3 parts: 1) fixing semicircular cylinder.2) slip semicircular cylinder.3) inner tabula inserted sheet.
Wherein 1) fixedly semicircular cylinder is semicircular cylinder is welded with conical probing cap in the end a structure, and the side wall ends of semicircular cylinder leaves spill dovetail draw-in groove, cooperates the slip semicircular cylinder to slidably reciprocate therein.The semicircular cylinder inner structural wall equidistantly leaves the slot of tabula inserted sheet, the tabula inserted sheet firmly can be fixed; Fixedly there is the locking plectrum on the semicircular cylinder top, is used for locked slip semicircular cylinder, and the slip semicircular cylinder can not be slided; Fixedly size scale also is carved with in the semicircular cylinder outside, inserts the degree of depth of the soil body with the monitoring sampler.
Wherein 2) the slip semicircular cylinder is a semicircular cylinder structure, and side wall ends leaves convex dovetail trip, matches with the fixing spill dovetail draw-in groove of semicircular cylinder, can slide up and down.When the slip semicircular cylinder contacted with conical probing cap, sampler is in closed condition, and was isolated fully with the external world.
Wherein 3) inner tabula inserted sheet is circular schistose texture, and diameter is consistent with the semicircular cylinder internal diameter.Inner tabula inserted sheet is a kind of structure that is used for separating the mud sample, can select the distance of inserted sheet according to sampling requirement flexibly.
Sampling method:
1), the gravity flow sludge sampler is placed to predetermined boring with sampling point, excavates the crust layer of muck surface.
2), the slip semicircular cylinder is pushed into bottommost, stir the locking plectrum, locked slip semicircular cylinder makes whole sampler become the integral body of a sealing.Sampler is pressed downward in the soil body up to the predetermined degree of depth.
3), to be maintained fixed semicircular cylinder motionless, the unlocked plectrum upwards spurs the slip semicircular cylinder, exposes the dress sample space, inside of sampler, certain interval of time promotes the slip semicircular cylinder later on downwards, and the soil sample that flows into dress sample space is sealed up.
4) lock the slip semicircular cylinder, once more, whole sampler is extracted the mud face.
5), open slip semicircular cylinder, taking-up soil sample.
Advantage of the present invention
The present invention proposes is pressed into gravity sampler and using method thereof and can overcomes the shortcoming that original state sample water percentage changes easily when the hydraulic reclamation stockyard sampling that has the rare plastic flow attitude of high-moisture percentage silt seam; And the characteristics of this sampler lightweight, portable can make it use under weak soil or the hypodynamic situation of mud place surface bears; Be pressed into gravity sampler and adopt modular design, can control the length that sampling cuts off, the size and the precision of control sampling range, sampling amount can be guaranteed simultaneously.Sampler equipment is simple, and lightweight is easy and simple to handle, the efficient height, and the sampling cost is low.
Description of drawings
Accompanying drawing A is fixedly semicircular cylinder and inner tabula inserted sheet
Accompanying drawing B is the slip semicircular cylinder
Accompanying drawing C is the combination synoptic diagram of fixing and slip semicircular cylinder
Among the figure: 1) fixing semicircular cylinder, 2) the tabula inserted sheet, 3) spill dovetail draw-in groove, 4) conical probing cap, 5) the slip semicircular cylinder, 6) convex dovetail trip.
Concrete implementation step:
1), cuts off length according to predetermined in advance sampling, select inner tabula inserted sheet 2) layout density, at fixing semicircular cylinder 1) in insert tabula inserted sheet 2), with slip semicircular cylinder 5) on convex dovetail trip 6) with fixing semicircular cylinder 1) on spill dovetail draw-in groove 3) semicircular cylinder of insertion slip afterwards 5 align);
2), the gravity flow sludge sampler is placed to predetermined boring with sampling point, excavate the crust layer of muck surface.
3), with slip semicircular cylinder 5) be pushed into bottommost, stir the locking plectrum, locked slip semicircular cylinder 5), make whole sampler become the integral body of a sealing.Sampler is pressed downward in the soil body up to the predetermined degree of depth.
4), be maintained fixed semicircular cylinder 1) motionless, the unlocked plectrum upwards spurs slip semicircular cylinder 5), the dress sample space, inside of exposing sampler, certain interval of time promotes slip semicircular cylinder 5 later on downwards), the soil sample that flows into dress sample space is sealed up.
5) lock slip semicircular cylinder 5, once more), whole sampler is extracted the mud face.
6), open slip semicircular cylinder 5), take out soil sample.

Claims (4)

1. gravity sampler that is pressed into that is used for mud stockyard and blast-filled ground, its one-piece construction comprises 3 parts: 1) fixing semicircular cylinder, 2) the slip semicircular cylinder, 3) inner tabula inserted sheet, it is characterized in that:
1), described fixedly semicircular cylinder is semicircular cylinder is welded with conical probing cap in the lower end structure, the side wall ends of semicircular cylinder leaves spill dovetail draw-in groove, the semicircular cylinder inner structural wall equidistantly leaves the slot of tabula inserted sheet,
2), described slip semicircular cylinder is a semicircular cylinder structure, side wall ends leaves convex dovetail trip, matches with the fixing spill dovetail draw-in groove of semicircular cylinder, can slide up and down,
3), described inner tabula inserted sheet is circular schistose texture, diameter is consistent with the semicircular cylinder internal diameter.
2. the be pressed into gravity sampler that be used for mud stockyard and blast-filled ground mentioned according to claim 1 is characterized in that fixedly there is the locking plectrum on the semicircular cylinder top, is used for locked slip semicircular cylinder, and the slip semicircular cylinder can not be slided.
3. according to claim 1 or the 2 mentioned gravity samplers that are pressed into that are used for mud stockyard and blast-filled ground, it is characterized in that fixedly size scale is carved with in the semicircular cylinder outside, insert the degree of depth of the soil body with the monitoring sampler.
4. one kind based on the described sampling method that is pressed into gravity sampler that is used for mud stockyard and blast-filled ground of claim 1, its step:
1), will be pressed into the gravity flow sludge sampler and be placed to predetermined boring with sampling point, excavate the crust layer of muck surface,
2), the slip semicircular cylinder is pushed into bottommost, stir the locking plectrum, locked slip semicircular cylinder makes whole sampler become the integral body of a sealing, sampler is pressed downward in the soil body up to the predetermined degree of depth,
3), to be maintained fixed semicircular cylinder motionless, the unlocked plectrum upwards spurs the slip semicircular cylinder, exposes the dress sample space, inside of sampler, certain interval of time promotes the slip semicircular cylinder later on downwards, the soil sample that flows into dress sample space is sealed up,
4) lock the slip semicircular cylinder, once more, whole sampler extracted the mud face,
5), open slip semicircular cylinder, taking-up soil sample.
CN2009100320418A 2009-06-30 2009-06-30 Press-in gravity sampler for sludge storage yards and dredge fill fields and sampling method Expired - Fee Related CN101592564B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102692340A (en) * 2012-06-15 2012-09-26 河海大学 Multi-depth rotating-wheel closed sampler and method thereof
CN103543030B (en) * 2012-07-17 2015-11-18 闫家国 Multi-functional column adopts mud hydrophore
CN103900857A (en) * 2014-04-17 2014-07-02 中国环境科学研究院 Particulate object columnar stratified sampler
CN106680024A (en) * 2016-12-28 2017-05-17 河海大学 Soil sampler
CN108181126B (en) * 2017-12-24 2019-12-03 自然资源部第一海洋研究所 Column shaped deposit sample divides sampling device
CN108760396A (en) * 2018-08-07 2018-11-06 苏州市宏宇环境科技股份有限公司 The sludge sampling method of this kind of sampler of rarefaction sludge depth sampler and application
CN112284833B (en) * 2020-11-06 2024-02-09 中国港湾工程有限责任公司 Hand-held sand sampler
CN112747966B (en) * 2020-12-22 2022-11-22 重庆医药高等专科学校 Sampler for pharmaceutical machine
CN113375965A (en) * 2021-06-23 2021-09-10 云南省生态环境科学研究院 Multifunctional soil sampling device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408893A (en) * 1993-10-25 1995-04-25 Mcleroy; David E. Ground moisture probe
CN2645073Y (en) * 2003-08-27 2004-09-29 浙江大学 Layered sample collector for shallow water body deposit
CN2653481Y (en) * 2003-11-18 2004-11-03 王子平 Outer shoulder inner cone split plastic sampling tube
CN2674426Y (en) * 2004-01-08 2005-01-26 刘宝林 Gravity type sampler
CN2802494Y (en) * 2005-06-07 2006-08-02 刘树东 Mud sampler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408893A (en) * 1993-10-25 1995-04-25 Mcleroy; David E. Ground moisture probe
CN2645073Y (en) * 2003-08-27 2004-09-29 浙江大学 Layered sample collector for shallow water body deposit
CN2653481Y (en) * 2003-11-18 2004-11-03 王子平 Outer shoulder inner cone split plastic sampling tube
CN2674426Y (en) * 2004-01-08 2005-01-26 刘宝林 Gravity type sampler
CN2802494Y (en) * 2005-06-07 2006-08-02 刘树东 Mud sampler

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