CN108225869A - A kind of soil sample consolidation cylinder and soil sample consolidation device - Google Patents
A kind of soil sample consolidation cylinder and soil sample consolidation device Download PDFInfo
- Publication number
- CN108225869A CN108225869A CN201810341071.6A CN201810341071A CN108225869A CN 108225869 A CN108225869 A CN 108225869A CN 201810341071 A CN201810341071 A CN 201810341071A CN 108225869 A CN108225869 A CN 108225869A
- Authority
- CN
- China
- Prior art keywords
- stack shell
- soil sample
- pedestal
- permeable
- cylinder
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of soil sample consolidation cylinder and soil sample consolidation devices, soil sample consolidation device, cylinder is consolidated including soil sample and is set to the pedestal of soil sample consolidation cylinder bottom and is consolidated the gland at the top of cylinder positioned at soil sample, soil sample consolidation device further includes gland permeable structure and pedestal permeable structure, soil sample consolidation cylinder includes the stack shell that upper end inner cavity is used for gland press-in, and stack shell permeable structure is provided on the stack shell of soil sample consolidation cylinder.Soil sample is packed into stack shell, pressure is applied to the soil sample in stack shell by gland, while moisture is discharged through trend up and down by pedestal permeable structure, gland permeable structure in soil sample, it can also be horizontally orientated to discharge through corresponding stack shell permeable structure, the use of stack shell permeable structure shortens the discharge path of the water in the soil sample in middle part, even if stack shell height is higher, it can also achieve the effect that water is discharged as early as possible in soil sample, improve the consolidation efficiency of soil sample.
Description
Technical field
The present invention relates to the soil sample consolidation cylinders and soil sample consolidation device in civil engineering experiment field.
Background technology
The preparation of remoulded sample is a link very crucial in civil engineering experiment, and the Production Time of soil sample is to experiment
Progress has very big influence.Therefore it can quickly prepare and meet that test requirements document, to meet practical sample particularly significant.It is needing
In the soil test that use consolidation method sample preparation, especially for the cohesive soil of infiltration coefficient very little, drainage rates are slower,
Reaching the degree of consolidation of test requirements document needs long time, extends the test period.
Existing soil sample consolidation device consolidates cylinder and be set to soil sample including soil sample consolidates the pedestal of cylinder bottom and positioned at soil
Gland at the top of sample consolidation cylinder, is both provided with pervious bed on pedestal and gland, and pervious bed includes filter paper and permeable stone, during experiment,
The soil sample for needing to consolidate to be put into soil sample consolidation cylinder, is pressed by device for exerting to gland, gland downlink presses to soil sample,
Moisture in soil sample is discharged through the pervious bed on pedestal and gland, in pressure after a certain period of time, achievees the purpose that consolidation.
Existing this soil sample consolidation device has problems in that：The axial height of soil sample consolidation cylinder is often higher, and
Moisture in soil sample can only discharge upwards, downwards through corresponding pervious bed, when soil sample height is higher, cause far from draining face
（In the middle part of soil sample consolidation cylinder）Soil sample in moisture drainage path it is longer, the consolidation time of soil sample is long, influences entirely to try
The consolidation progress of sample.
Invention content
The purpose of the present invention is to provide a kind of soil sample consolidation device, to solve in the prior art in the soil sample at middle part
Moisture drainage path it is long and the problem of cause soil sample consolidation time long；The present invention also aims to provide a kind of soil sample to consolidate
The soil sample consolidation cylinder used in knot device.
In order to solve the above technical problems, the technical solution of soil sample consolidation device is as follows in the present invention：
Soil sample consolidation device consolidates cylinder including soil sample and is set to the pedestal of soil sample consolidation cylinder bottom and consolidates cylinder top positioned at soil sample
The gland in portion, soil sample consolidation device further include gland permeable structure and pedestal permeable structure, and soil sample consolidation cylinder includes upper end inner cavity
For the stack shell of gland press-in, stack shell permeable structure is provided on the stack shell of soil sample consolidation cylinder.
The stack shell permeable structure includes the stack shell pervious bed that vertically extends, and the upper end of stack shell pervious bed is to gland
Permeable structure water guide, stack shell pervious bed lower end to pedestal permeable structure water guide.
Stack shell permeable structure includes at least two along the circumferentially spaced stack shell pervious bed of the stack shell, each stack shell
Pervious bed is the strip structure vertically extended.
The stack shell pervious bed includes the stack shell permeable stone of strip structure vertically extended, and soil sample consolidates the cylinder of cylinder
It is provided with the mounting groove vertically extended for corresponding stack shell permeable stone installation with it, the internal face of stack shell permeable stone is and cylinder
The consistent arcwall face of the internal face radian of body, the internal face of stack shell permeable stone flush setting with the internal face of stack shell.
The pedestal is annular hollow-core construction, is provided with to coordinate with soil sample consolidation cylinder bottom positioning block on pedestal
Positioning step, pedestal permeable structure include permeable stone under the pedestal being set in base intracavity and are set on the upside of positioning step
Pedestal upper dankness stone, the diameter of pedestal upper dankness stone consolidate the internal diameter of cylinder no more than soil sample, are provided on pedestal along pedestal radially
The pedestal permeable hole communicated with permeable stone under the pedestal of extension.
The technical solution of soil sample consolidation cylinder is in the present invention：
The soil sample consolidation cylinder of soil sample consolidation device is used for the stack shell of corresponding gland press-in including upper end inner cavity, soil sample consolidation cylinder
Stack shell permeable structure is provided on stack shell.
The stack shell permeable structure includes the stack shell pervious bed that vertically extends, and the upper end of stack shell pervious bed is to gland
Permeable structure water guide, stack shell pervious bed lower end to pedestal permeable structure water guide.
Stack shell permeable structure includes at least two along the circumferentially spaced stack shell pervious bed of the stack shell, each stack shell
Pervious bed is the strip structure vertically extended.
The stack shell pervious bed includes the stack shell permeable stone of strip structure vertically extended, and soil sample consolidates the cylinder of cylinder
It is provided with the mounting groove vertically extended for corresponding stack shell permeable stone installation with it, the internal face of stack shell permeable stone is and cylinder
The consistent arcwall face of the internal face radian of body, the internal face of stack shell permeable stone flush setting with the internal face of stack shell.
The pedestal is annular hollow-core construction, is provided with to coordinate with soil sample consolidation cylinder bottom positioning block on pedestal
Positioning step, pedestal permeable structure include permeable stone under the pedestal being set in base intracavity and are set on the upside of positioning step
Pedestal upper dankness stone, the diameter of pedestal upper dankness stone consolidate the internal diameter of cylinder no more than soil sample, are provided on pedestal along pedestal radially
The pedestal permeable hole communicated with permeable stone under the pedestal of extension.
Beneficial effects of the present invention are：In use, being packed into soil sample in stack shell, the soil sample in stack shell is applied by gland
Pressure, while moisture is discharged through trend up and down by pedestal permeable structure, gland permeable structure in soil sample, can also level walk
It is discharged to through corresponding stack shell permeable structure, the use of stack shell permeable structure shortens the discharge of the water in the soil sample in middle part
Path even if stack shell height is higher, can also achieve the effect that water is discharged as early as possible in soil sample, improve the consolidation efficiency of soil sample.
Description of the drawings
Fig. 1 is the structure diagram of one embodiment of soil sample consolidation device in the present invention；
Fig. 2 is the sectional view along A-A of Fig. 1.
Specific embodiment
The embodiment of soil sample consolidation device is as shown in Figure 1 and 2：Cylinder 5 is consolidated including soil sample and is set to soil sample consolidation cylinder bottom
Pedestal 6 and positioned at soil sample consolidation cylinder at the top of gland 2, soil sample consolidation device further include pressurized equipment and for deflection detect
Displacement sensor, pressurized equipment include pressure transmission lever, be connected to the hydraulic cylinder at pressure transmission lever power end and be connected to pressure transmission thick stick
The transmission rod 1 at bar resistance end, transmission rod is connected with gland, and wherein hydraulic cylinder is hinged and connected with pressure transmission lever, transmission rod and pressure transmission
Lever is hinged and connected.Gland permeable structure is provided on gland, gland permeable structure includes discoidal gland permeable stone 4 and position
Filter paper on the downside of gland permeable stone, gland permeable structure further include the gland permeable hole 3 through gland.Gland 2, gland are permeable
Stone 4 coordinates for being pressed into stack shell upper end with stack shell guiding movement.Pedestal is annular hollow-core construction, is provided with and is used on pedestal
The positioning step 10 coordinated with soil sample consolidation cylinder bottom positioning block, in use, being filled out between positioning step 10 and soil sample consolidation cylinder 5
There are sealing material, such as vaseline.Pedestal permeable structure is connected on pedestal, pedestal permeable structure includes the bottom being located in base intracavity
The lower permeable stone 9 of seat and the pedestal upper dankness stone 4 on the upside of positioning step, it is permeable under each pedestal under pedestal there are three permeable stones 9
Stone 9 is disc structure, and pedestal upper dankness stone is also disc structure, and the diameter of pedestal upper dankness stone is no more than soil sample consolidation cylinder
Internal diameter, pedestal upper dankness stone can be submerged in soil sample consolidation cylinder, and the lower end of pedestal upper dankness stone is supported by pedestal, is set on pedestal
It is equipped with the pedestal permeable hole communicated with permeable stone under pedestal radially extended along pedestal.
Stack shell permeable structure is provided on the stack shell of soil sample consolidation cylinder, the stack shell inner wall of soil sample consolidation cylinder is circumferentially distributed to be had
Multiple mounting grooves vertically extended, stack shell permeable structure include the stack shell pervious bed 7 being set in corresponding mounting groove, this
Stack shell pervious bed 7 is the stack shell permeable stone of strip tile structure that axis vertically extends in embodiment, and stack shell is permeable
The internal face of stone is the arcwall face consistent with the internal face radian of stack shell, and the internal face of stack shell permeable stone and the internal face of stack shell are neat
Flat setting.
Make when, mounting groove can be formed by Numerical control cutting, mounting groove is cut to be formed after, the stack shell of each bar shaped is permeable
Stone is respectively arranged in corresponding mounting groove, and filter paper is set in the upside of pedestal upper dankness stone, then by the cylinder of soil sample consolidation cylinder
Body is placed on pedestal, positioning step and the stack shell bottom location fit of pedestal.The soil sample for needing to consolidate is circulated into stack shell,
Filter paper and gland permeable stone are placed in its upside, and gland is positioned over to the upside of gland permeable stone, and displacement is installed at transmission rod and is passed
Sensor pressurizes to gland by pressurized equipment, and under pressure, most of water of upside soil sample can be through gland permeable stone, pressure
Lid permeable hole is discharged, and most of water in the soil sample of downside can be arranged through permeable stone under pedestal upper dankness stone, pedestal and pedestal permeable hole
Go out, and middle part soil sample and can be flowed under pressure in stack shell permeable stone compared with the water in nearby soil sample apart from stack shell, and edge
Stack shell permeable stone flows in the up-down direction, is discharged toward upper water through gland permeable stone, gland permeable hole, toward dirty water warp
Permeable stone and pedestal permeable hole are discharged under pedestal upper dankness stone, pedestal, the drainage path more phase of the water in such soil sample everywhere
Closely, it is and shorter, the moisture in soil sample can be made to discharge as early as possible, greatly shorten soil sample consolidation time, soil sample is improved and make effect
Rate, the filter paper on the downside of gland permeable stone, the filter paper on the upside of pedestal upper dankness stone can play the role of filtering, soil sample avoided to block
Gland permeable stone, pedestal upper dankness stone, while also be able between avoiding between soil sample obstruction gland permeable stone and stack shell permeable stone
Gap avoids the gap between soil sample obstruction pedestal upper dankness stone and stack shell permeable stone, ensures that stack shell permeable stone can be smooth by water
Guiding gland permeable stone and pedestal upper dankness stone.The internal face of stack shell permeable stone is the arc consistent with the internal face radian of stack shell
Shape face ensure that stack shell permeable stone and soil sample have sufficiently large contact area, in addition, after being also beneficial to soil sample consolidation with stack shell and
The knockout course of stack shell permeable stone.In the present invention, the upper end of stack shell pervious bed is to gland permeable structure water guide, stack shell pervious bed
Lower end thus can carry out draining, because in the prior art to pedestal permeable structure water guide using the original discharge outlet of device
In, by gland permeable structure and pedestal permeable structure water guide, the water exit position of device entirety is constant after improvement, water outlet position
It is single, water is avoided to flow everywhere, reduces the influence to miscellaneous equipment.In other embodiments of the invention：It can also be in mounting groove
Slot bottom setting stack shell permeable hole, the water of stack shell pervious bed is exported；Stack shell pervious bed can also be highly consistent with stack shell
Tubular construction；Pedestal can also be solid construction, and pedestal permeable hole at this time includes the axial direction being connected with pedestal upper dankness stone
Part and the radial component for water to be exported to pedestal；The hydraulic cylinder of pressurized equipment can also be by pneumatic cylinder or drive push rod generation
It replaces.Force transferring lever can change the direction of transfer of power, facilitate setting hydraulic cylinder, reduce pressurized equipment whole height, realize simultaneously
The amplification of power, in other embodiments of the invention, pressurized equipment can not also include force transferring lever, use hydraulic cylinder or air pressure
Cylinder directly acts on gland and pressurizeing；Permeable stone in pedestal permeable structure, gland permeable structure, stack shell permeable structure can also quilt
Other permeable structures replace, such as pervious concrete, permeable carbon fiber etc..
A kind of embodiment of soil sample consolidation cylinder is as shown in Figure 1 and 2：The concrete structure of soil sample consolidation cylinder is consolidated with above-mentioned each soil sample
The soil sample consolidation cylinder tied described in device is identical, and this will not be detailed here.
Claims (10)
1. soil sample consolidation device consolidates cylinder including soil sample and is set to the pedestal of soil sample consolidation cylinder bottom and consolidates cylinder positioned at soil sample
The gland at top, soil sample consolidation device further include gland permeable structure and pedestal permeable structure, and soil sample consolidation cylinder is included in upper end
Chamber is used for the stack shell of gland press-in, it is characterised in that：Stack shell permeable structure is provided on the stack shell of soil sample consolidation cylinder.
2. soil sample consolidation device according to claim 1, it is characterised in that：The stack shell permeable structure includes vertically side
To the stack shell pervious bed of extension, the upper end of stack shell pervious bed to gland permeable structure water guide, stack shell pervious bed lower end to pedestal
Permeable structure water guide.
3. soil sample consolidation device according to claim 2, it is characterised in that：Stack shell permeable structure includes at least two along institute
The circumferentially spaced stack shell pervious bed of stack shell is stated, each stack shell pervious bed is the strip structure vertically extended.
4. soil sample consolidation device according to claim 3, it is characterised in that：The stack shell pervious bed is included along the vertical direction
The stack shell permeable stone of the strip structure of extension, soil sample, which consolidates to be provided with to vertically extend on the stack shell of cylinder, supplies corresponding stack shell saturating
The mounting groove of water stone installation, the internal face of stack shell permeable stone is the arcwall face consistent with the internal face radian of stack shell, and stack shell is permeable
The internal face of stone flushes setting with the internal face of stack shell.
5. the soil sample consolidation device according to claim 1 ~ 4 any one, it is characterised in that：The pedestal is hollow for annular
Structure is provided on pedestal for the positioning step with the bottom positioning block cooperation of soil sample consolidation cylinder, and pedestal permeable structure includes
It is set to permeable stone and the pedestal upper dankness stone being set on the upside of positioning step, pedestal upper dankness stone under the pedestal in base intracavity
Diameter no more than soil sample consolidation cylinder internal diameter, be provided on pedestal radially extended along pedestal with permeable stone phase under the pedestal
Logical pedestal permeable hole.
6. the soil sample consolidation cylinder of soil sample consolidation device is used for the stack shell of corresponding gland press-in including upper end inner cavity, it is characterised in that：
Stack shell permeable structure is provided on the stack shell of soil sample consolidation cylinder.
7. soil sample according to claim 6 consolidates cylinder, it is characterised in that：The stack shell permeable structure is included along the vertical direction
The stack shell pervious bed of extension, the lower end of upper end to gland permeable structure water guide, the stack shell pervious bed of stack shell pervious bed are saturating to pedestal
Water-bound water guide.
8. soil sample according to claim 7 consolidates cylinder, it is characterised in that：Stack shell permeable structure includes at least two along described
The circumferentially spaced stack shell pervious bed of stack shell, each stack shell pervious bed is the strip structure vertically extended.
9. soil sample according to claim 8 consolidates cylinder, it is characterised in that：The stack shell pervious bed includes prolonging along the vertical direction
The stack shell permeable stone for the strip structure stretched, soil sample, which consolidates to be provided with to vertically extend on the stack shell of cylinder, supplies corresponding stack shell permeable
The mounting groove of stone installation, the internal face of stack shell permeable stone are the arcwall face consistent with the internal face radian of stack shell, stack shell permeable stone
Internal face setting is flushed with the internal face of stack shell.
10. the soil sample consolidation cylinder according to claim 6 ~ 9 any one, it is characterised in that：The pedestal is hollow for annular
Structure is provided on pedestal for the positioning step with the bottom positioning block cooperation of soil sample consolidation cylinder, and pedestal permeable structure includes
It is set to permeable stone and the pedestal upper dankness stone being set on the upside of positioning step, pedestal upper dankness stone under the pedestal in base intracavity
Diameter no more than soil sample consolidation cylinder internal diameter, be provided on pedestal radially extended along pedestal with permeable stone phase under the pedestal
Logical pedestal permeable hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341071.6A CN108225869A (en) | 2018-04-17 | 2018-04-17 | A kind of soil sample consolidation cylinder and soil sample consolidation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810341071.6A CN108225869A (en) | 2018-04-17 | 2018-04-17 | A kind of soil sample consolidation cylinder and soil sample consolidation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108225869A true CN108225869A (en) | 2018-06-29 |
Family
ID=62657638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810341071.6A Pending CN108225869A (en) | 2018-04-17 | 2018-04-17 | A kind of soil sample consolidation cylinder and soil sample consolidation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108225869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708942A (en) * | 2019-02-26 | 2019-05-03 | 上海大学 | The mold and forming method of high throughput component screening can be achieved |
| CN113529823A (en) * | 2021-07-23 | 2021-10-22 | 桂林理工大学 | Pile foundation indoor model test device and test method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738337A (en) * | 2009-12-09 | 2010-06-16 | 中国矿业大学 | Quick preparation device and method of saturated soil sample |
| CN202066775U (en) * | 2011-03-08 | 2011-12-07 | 南昌市建筑工程集团有限公司 | Lever type combined permeability and consolidation apparatus |
| CN202256114U (en) * | 2011-10-27 | 2012-05-30 | 温文富 | Novel permeameter |
| CN205786036U (en) * | 2016-05-23 | 2016-12-07 | 信阳师范学院 | A kind of transparent consolidation container of saturated manipulated soil |
| CN206906209U (en) * | 2017-06-29 | 2018-01-19 | 榆林学院 | A kind of radial penetration experimental provision for being used to evaluate soil body radial penetration characteristic |
| CN107727477A (en) * | 2017-11-13 | 2018-02-23 | 宁波工程学院 | A kind of hollow cylinder compacted soil samples saturation device |
| CN107807030A (en) * | 2017-12-23 | 2018-03-16 | 魏雨町 | A kind of preparation of soil sample device and its application method with cutting ring locating slot |
| CN208254900U (en) * | 2018-04-17 | 2018-12-18 | 郑州大学 | Soil sample consolidates cylinder and soil sample consolidation device |
-
2018
- 2018-04-17 CN CN201810341071.6A patent/CN108225869A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738337A (en) * | 2009-12-09 | 2010-06-16 | 中国矿业大学 | Quick preparation device and method of saturated soil sample |
| CN202066775U (en) * | 2011-03-08 | 2011-12-07 | 南昌市建筑工程集团有限公司 | Lever type combined permeability and consolidation apparatus |
| CN202256114U (en) * | 2011-10-27 | 2012-05-30 | 温文富 | Novel permeameter |
| CN205786036U (en) * | 2016-05-23 | 2016-12-07 | 信阳师范学院 | A kind of transparent consolidation container of saturated manipulated soil |
| CN206906209U (en) * | 2017-06-29 | 2018-01-19 | 榆林学院 | A kind of radial penetration experimental provision for being used to evaluate soil body radial penetration characteristic |
| CN107727477A (en) * | 2017-11-13 | 2018-02-23 | 宁波工程学院 | A kind of hollow cylinder compacted soil samples saturation device |
| CN107807030A (en) * | 2017-12-23 | 2018-03-16 | 魏雨町 | A kind of preparation of soil sample device and its application method with cutting ring locating slot |
| CN208254900U (en) * | 2018-04-17 | 2018-12-18 | 郑州大学 | Soil sample consolidates cylinder and soil sample consolidation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708942A (en) * | 2019-02-26 | 2019-05-03 | 上海大学 | The mold and forming method of high throughput component screening can be achieved |
| CN113529823A (en) * | 2021-07-23 | 2021-10-22 | 桂林理工大学 | Pile foundation indoor model test device and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208254900U (en) | Soil sample consolidates cylinder and soil sample consolidation device | |
| CN108225869A (en) | A kind of soil sample consolidation cylinder and soil sample consolidation device | |
| CN107807030A (en) | A kind of preparation of soil sample device and its application method with cutting ring locating slot | |
| CN210719879U (en) | Test device for preparing rock-like transparent material by using vacuum consolidation method | |
| CN104563911B (en) | Drilling rod for the construction of base expanding and base expanding Screw Pile | |
| CN208618405U (en) | A kind of architectural engineering static pile press | |
| CN108978698A (en) | A kind of building pile foundation construction method | |
| CN211773581U (en) | Precast concrete drainage pile | |
| CN209412846U (en) | A kind of drainage mechanism of basement bottom board | |
| CN214993978U (en) | Quick drainage system of deep foundation pit | |
| CN213329033U (en) | Slip casting pipe for slope reinforcement | |
| CN204645071U (en) | A kind of device utilizing soil bearing capacity between PHC pipe pile | |
| CN210216518U (en) | Pressure maintaining structure in construction process of small and medium-sized basements | |
| CN208563314U (en) | A kind of high intensity can drain prefabricating composite pile | |
| CN206721940U (en) | One kind building compensation terrace | |
| GB2113748A (en) | Piles | |
| SU945287A1 (en) | Foundation for structures erected of non-uniformly deformable beds | |
| CN104863172A (en) | Device and method for utilizing bearing force of between-pile soil of PHC pipe pile | |
| CN1995553A (en) | Pile forming method for filling pile of compact-making hole and its drill rod | |
| CN220336911U (en) | Tunnel backfill grouting device | |
| CN204919531U (en) | Hang mould supporting device what inside lining was pour to underground continuous wall body surface face | |
| CN110284486B (en) | Soft soil foundation stabilization drainage structure | |
| CN208701701U (en) | A kind of highly permeable stratum deep basal pit back cover water sealing structure | |
| CA2055141C (en) | Concrete pipe making machine | |
| CN220550876U (en) | Cast-in-place concrete floor thickness control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |