CN215518697U - Digging device for measuring compaction degree by sand filling method - Google Patents
Digging device for measuring compaction degree by sand filling method Download PDFInfo
- Publication number
- CN215518697U CN215518697U CN202120922490.6U CN202120922490U CN215518697U CN 215518697 U CN215518697 U CN 215518697U CN 202120922490 U CN202120922490 U CN 202120922490U CN 215518697 U CN215518697 U CN 215518697U
- Authority
- CN
- China
- Prior art keywords
- measuring cylinder
- crushing
- ground
- fixed
- cutting
- 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.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses a digging device of sand filling method pressure measurement compactness. The digging device for measuring compaction degree by a sand filling method comprises: the frame is used for being fixed on the ground to be measured; the measuring cylinder is arranged on the frame; the cutting and crushing mechanism is arranged in the measuring cylinder and is used for cutting and crushing the soil and stones entering the measuring cylinder; and the driving mechanism is arranged on the rack, and the output end of the driving mechanism is connected with the measuring cylinder, so that the driving mechanism drives the measuring cylinder to rotate downwards to enter the ground or upwards to separate from the ground. The technical problems that in the related art, the efficiency of pit digging by a sand filling method is low and the stability is poor are solved.
Description
Technical Field
The application relates to the technical field of compactness, particularly, relate to a device of digging pit of sand filling method pressure measurement compactness.
Background
The roadbed is an important component of a road, and has an increasing importance in road construction. The work method for detecting the compaction degree of the roadbed engineering can be specifically divided into a sand filling method, a water filling method (a water bag method), a cutting ring method, a nucleon method, a core drilling method and the like, and the most common method is a pit digging sand filling method. According to the highway subgrade and pavement site test regulation (JTG 3450-2019), the excavation depth of a test pit is regulated by different filler particle sizes, the excavation depth is required to be different from 15cm to 40cm, and in site operation, the excavation tools used are usually chisels, hammers, shovels and the like. The great workload and the great working strength of pit digging occupy half of the test time, 2-3 testers need to dig in turn, and no way is provided for ensuring that the shape of the dug test pit is a standard cylinder, which will affect the accuracy of the test result.
The subgrade compactness is an important index for reflecting the compactness, and can reflect whether the subgrade meets the standard, the sand-grouting method is a commonly used method for measuring the compactness, and the pit excavation is needed when the sand-grouting method is used for measuring, so that a pit excavation device is needed, but the common pit excavation device has some defects when in use, such as:
firstly, when the general pit digging device is used, the pit digging is carried out manually, so that the pit digging time is longer, the pit digging efficiency is lower, and the use of the device is not facilitated;
secondly, the stability is relatively poor when using of general digging device, and the digging device commonly used uses the manual work to press the device to fix the device, cause the stability of device relatively poor.
Aiming at the problems of lower efficiency and poorer stability of pit digging by a sand filling method in the related technology, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The main aim at of this application provides a device of digging pit of method of irritating sand pressure solidity to lower and the relatively poor problem of stability of method of irritating sand digging pit efficiency in solving relevant art.
In order to realize the purpose, the application provides a digging device for measuring the compaction degree by a sand filling method.
According to the utility model provides a device of digging pit of sand filling method pressure measurement compactness includes:
the frame is used for being fixed on the ground to be measured;
the measuring cylinder is arranged on the frame;
the cutting and crushing mechanism is arranged in the measuring cylinder and is used for cutting and crushing the soil and stones entering the measuring cylinder;
and the driving mechanism is arranged on the rack, and the output end of the driving mechanism is connected with the measuring cylinder, so that the driving mechanism drives the measuring cylinder to rotate downwards to enter the ground or upwards to separate from the ground.
Optionally, the cutting and crushing mechanism comprises an annular cutting knife and a connecting piece, the annular cutting knife and the measuring cylinder are coaxially arranged, and the annular cutting knife is connected to the inner wall of the measuring cylinder through the connecting piece.
Optionally, the connecting piece comprises a fixing rod and a spring, and a fixing hole corresponding to the fixing rod is formed in the measuring cylinder;
the first end of the spring is fixed on the annular cutting knife, the second end of the spring is connected with the first end of the fixing rod, and the second end of the fixing rod is embedded into the corresponding fixing hole.
Optionally, the cutting and crushing mechanism further comprises a drill bit, the drill bit is arranged coaxially with the measuring cylinder, and the upper end of the drill bit is fixed in the measuring cylinder.
Optionally, the cutting and crushing mechanism further comprises a plurality of crushing knives;
the plurality of crushing cutters are arranged around the drill bit, and the crushing cutters are fixed on the annular cutting cutter.
Optionally, the plurality of crushing knives are distributed around the drill bit at equal angles.
Optionally, the drive mechanism comprises an electric push rod, a motor and a support column;
the electric push rod is fixed on the rack, the motor is installed at the lower end of the push rod which is included by the electric push rod, the first end of the supporting column is connected with the rotating shaft of the motor, and the second end of the supporting column is connected with the measuring cylinder.
Optionally, a warning line is arranged on the measuring cylinder.
Optionally, the measuring cylinder further comprises an expansion bracket, the expansion bracket is fixed above the rack, and the measuring cylinder and the driving mechanism are both installed on the expansion bracket.
Optionally, the device further comprises a riveting rod mechanism for fixing on the ground to be tested, and the riveting rod mechanism is installed on the rack.
In the embodiment of this application, provide a device of digging pit of method of irritating sand pressure measurement compactness, through setting up: the frame is used for being fixed on the ground to be measured; the measuring cylinder is arranged on the frame; the cutting and crushing mechanism is arranged in the measuring cylinder and is used for cutting and crushing the soil and stones entering the measuring cylinder; and the driving mechanism is arranged on the rack, and the output end of the driving mechanism is connected with the measuring cylinder, so that the driving mechanism drives the measuring cylinder to rotate downwards to enter the ground or upwards to separate from the ground. Like this, the digging device of sand filling method pressure measurement solidity that this application provided only needs to fix the frame subaerial that awaits measuring when using, rethread actuating mechanism drive graduated flask spiral shaft gets into ground downwards, and because the graduated flask gets into the ground that awaits measuring through the rotation mode, and then has guaranteed the stability that the graduated flask dug, simultaneously, cuts broken mechanism and to getting into the soil stone in the graduated flask cuts the breakage, the collection in the later stage of being convenient for to bring higher digging efficiency. Thereby solving the technical problems of lower efficiency and poorer stability of the pit digging method by the sand filling method in the related technology.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram of a pit digging device for measuring compaction by a sand-grouting method according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a cutting and crushing mechanism provided in an embodiment of the present application;
FIG. 3 is a schematic view illustrating an assembly of a circular cutter and a measuring cylinder provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a drill bit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a rack according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted", "disposed", "provided", "connected", "slidably connected", "fixed", should be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 5, an embodiment of the present application provides a pit digging device for measuring compaction degree by a sand-grouting method, including:
the device comprises a frame 1, a detection unit and a control unit, wherein the frame is used for being fixed on the ground to be detected;
the measuring cylinder 11 is arranged on the frame 1;
the cutting and crushing mechanism is arranged in the measuring cylinder 11 and is used for cutting and crushing the soil and stones entering the measuring cylinder 11;
and the driving mechanism is arranged on the rack 1, and the output end of the driving mechanism is connected with the measuring cylinder 11, so that the driving mechanism drives the measuring cylinder 11 to rotate downwards to enter the ground or upwards to separate from the ground.
Specifically, the device of digging pit of sand filling method pressure measurement solidity that this application provided, when using, only need fix frame 1 subaerial that awaits measuring, rethread actuating mechanism drive graduated flask 11 revolves the axial and gets into ground downwards, and because graduated flask 11 gets into the ground that awaits measuring through rotatory mode, and then has guaranteed the stability that graduated flask 11 dug the pit, simultaneously, the broken mechanism of cutting is to getting into the soil and rock in the graduated flask 11 cuts the breakage, the collection in the later stage of being convenient for to bring higher efficiency of digging the pit.
Optionally, the cutting and crushing mechanism comprises an annular cutting knife 12 and a connecting piece, the annular cutting knife 12 is arranged coaxially with the measuring cylinder 11, and the annular cutting knife 12 is connected to the inner wall of the measuring cylinder 11 through the connecting piece.
Specifically, by arranging the connecting piece, the annular cutting knife 12 can be coaxially arranged in the measuring cylinder 11, and when the driving mechanism drives the measuring cylinder 11 to rotate downwards to enter the ground, the annular cutting knife 12 can rotate along with the measuring cylinder 11 to cut the soil and stones below the measuring cylinder 11 into a cylinder, so that the measuring cylinder 11 can conveniently perform pit digging operation.
Optionally, the connecting member includes a fixing rod 13 and a spring 14, and a fixing hole corresponding to the fixing rod 13 is formed in the measuring cylinder 11;
the first end of the spring is fixed on the annular cutting knife 12, the second end of the spring is connected with the first end of the fixing rod 13, and the second end of the fixing rod 13 is embedded into the corresponding fixing hole.
Specifically, the connecting piece includes dead lever 13 and spring 14, like this, when assembling annular cutting knife 12 in graduated flask 11, and when need to lift annular cutting knife 12 off from graduated flask 11, only need to press dead lever 13 to the spring 14 direction for dead lever 13 embedding or break away from the fixed orifices on the graduated flask 11 can, convenient operation is swift.
Wherein, two connecting pieces can be arranged and are symmetrically arranged at two sides of the annular cutting knife 12.
Optionally, the cutting and crushing mechanism further comprises a drill bit 16, the drill bit 16 is arranged coaxially with the measuring cylinder 11, and the upper end of the drill bit 16 is fixed in the measuring cylinder 11.
Specifically, when the driving mechanism drives the measuring cylinder 11 to rotate axially downwards to enter the ground, the drill bit 16 rotates along with the measuring cylinder 11 to drill and loosen soil and stones below the measuring cylinder 11, so as to break the soil and stones integral structure.
Optionally, the cutting and crushing mechanism further comprises a plurality of crushing blades 15;
the crushing blades 15 are arranged around the drill bit 16, and the crushing blades 15 are fixed on the annular cutting knife 12.
Specifically, when the driving mechanism drives the measuring cylinder 11 to rotate axially downward to enter the ground, the crushing blades 15 arranged around the drill bit 16 rotate along with the measuring cylinder 11 to crush the soil and stones in the measuring cylinder 11. That is, when actuating mechanism drive graduated flask 11 revolves the axle and gets into the ground downwards (that is to say when digging a pit), actuating mechanism drives annular cutting knife 12, smashes sword and drill bit 16 and moves down, drives annular cutting knife 12 in addition, smashes sword and drill bit 16 and rotates, and annular cutting knife 12 can be the cylinder with the earth and stone cutting of below, and smashes sword and drill bit 16 and can smash earth and stone, the collection in the later stage of being convenient for, and graduated flask 11 can prevent that earth and stone outwards from spilling, is convenient for collect earth and stone.
Wherein, optionally, the crushing blades 15 and the annular cutting blades 12 may be of an integral construction.
Specifically, for more uniform crushing operation of the earth and the stone, the plurality of crushing cutters 15 are distributed around the drill bit 16 at equal angles.
Optionally, the driving mechanism comprises an electric push rod 8, a motor 9 and a support column 10;
the electric push rod 8 is fixed on the rack 1, the motor 9 is installed at the lower end of the push rod which is included by the electric push rod 8, the first end of the supporting column 10 is connected with a rotating shaft of the motor 9, and the second end of the supporting column 10 is connected with the measuring cylinder 11.
The electric push rod 8 can push the motor 9 to move up and down, the motor 9 drives the supporting column 10 to rotate, and the supporting column 10 can drive the measuring cylinder 11 to move up and down and can drive the measuring cylinder 11 to rotate.
In particular, the support column 10 and the measuring cylinder 11 may be connected by flanges.
Optionally, a warning line is arranged on the measuring cylinder 11.
Wherein, the measuring cylinder 11 is provided with a warning line, and the drilling depth can be observed according to the warning line on the surface of the measuring cylinder 11, so as to determine that the proper depth is drilled.
Optionally, the measuring cylinder further comprises an expansion bracket, the expansion bracket is fixed above the rack 1, and the measuring cylinder 11 and the driving mechanism are both installed on the expansion bracket.
Specifically, the expansion bracket includes backplate 5, fixed column 6 and mount 7, the embedded inside at backplate 5 of installing of fixed column 6, and fixed column 6 and mount 7 constitute extending structure, when punching, hang the embedded dark change of fixed column 6 in backplate 5's inside, then use the bolt to fix the two, make fixed column 6 follow mount 7 inside with mount 7 rebound simultaneously and stretch out, when the device transports, the area of the inside reduction device of fixing column 6 retraction mount 7, thereby be convenient for the transportation of device.
Optionally, the device further comprises a riveting rod mechanism for fixing on the ground to be tested, and the riveting rod mechanism is installed on the rack 1.
Specifically, riveting rod mechanism is including fixed riveting rod 2, screw rod 3 and fixed disk 4, the angle such as inside of frame 1 is provided with fixed riveting rod 2, and fixed riveting rod 2 and screw rod 3 are threaded connection, and screw rod 3 and fixed disk 4 constitute rotating-structure, fixed disk 4 constitutes sliding friction structure with fixed riveting rod 2 simultaneously, when installing the device, through fixing riveting rod 2 laminating ground, then the fixed disk 4 of 3 trees of rotating screw rod upwards removes, the atmospheric pressure in the fixed riveting rod 2 reduces this moment, thereby fix frame 1.
In addition, the frame 1 is provided with a through hole for receiving the measuring cylinder 11 to pass through.
The working principle of the application is as follows:
firstly, when the pit digging device for measuring compaction degree by a sand filling method is used, the fixed riveting rod 2 is attached to the ground, and then the screw inserting needle 3 is rotated to enable the fixed disc 4 to move upwards, so that the frame 1 is fixed to determine the pit digging position.
Secondly, the measuring cylinder 11 is attached to the supporting column 10, the measuring cylinder 11 and the supporting column are fixed through bolts, the cutting knife 12 is installed inside the measuring cylinder 11 in an embedded mode, the spring 14 pushes the fixing rod 13 to move outwards to be installed inside the measuring cylinder 11 in an embedded mode, the measuring cylinder 11 and the cutting knife 12 are fixed, the fixing frame 7 moves upwards to enable the fixing column 6 to extend out, the fixing column 6 is installed inside the protection plate 5 in an embedded mode, and the fixing column 6 and the protection plate are fixed through bolts.
Connecting external power supply with the device, 8 thrust unit downshifts of electric putter, and motor 9 drives cutting knife 12, smash sword 15 and drill bit 16 and rotate, cutting knife 12 is the cylinder with ground cutting in the in-process of downshifting, and smash sword 15 and drill bit 16 and can smash columniform ground, after the device finishes using, with mount 7 and 1 separation of frame, reuse graduated flask 11 is collected kibbling earth, thereby weigh, detect the degree of compaction on ground, holistic practicality has been increased.
In the embodiment of this application, provide a device of digging pit of method of irritating sand pressure measurement compactness, through setting up: the device comprises a frame 1, a detection unit and a control unit, wherein the frame is used for being fixed on the ground to be detected; the measuring cylinder 11 is arranged on the frame 1; the cutting and crushing mechanism is arranged in the measuring cylinder 11 and is used for cutting and crushing the soil and stones entering the measuring cylinder 11; and the driving mechanism is arranged on the rack 1, and the output end of the driving mechanism is connected with the measuring cylinder 11, so that the driving mechanism drives the measuring cylinder 11 to rotate downwards to enter the ground or upwards to separate from the ground. Like this, the digging device of sand filling method pressure measurement compactness that this application provided only needs when using to fix frame 1 subaerial that awaits measuring, the drive of rethread actuating mechanism 11 spiral shaft gets into ground downwards, and because graduated flask 11 gets into the ground that awaits measuring through rotatory mode, and then has guaranteed the stability that graduated flask 11 dug the pit, simultaneously, cuts broken mechanism and to getting into the soil and rock in the graduated flask 11 cuts the breakage, the collection in the later stage of being convenient for to bring higher digging efficiency. Thereby solving the technical problems of lower efficiency and poorer stability of the pit digging method by the sand filling method in the related technology.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a device of digging pit of sand filling method pressure measurement compactness which characterized in that includes:
the frame is used for being fixed on the ground to be measured;
the measuring cylinder is arranged on the frame;
the cutting and crushing mechanism is arranged in the measuring cylinder and is used for cutting and crushing the soil and stones entering the measuring cylinder;
and the driving mechanism is arranged on the rack, and the output end of the driving mechanism is connected with the measuring cylinder, so that the driving mechanism drives the measuring cylinder to rotate downwards to enter the ground or upwards to separate from the ground.
2. The apparatus of claim 1, wherein the cutting and crushing mechanism comprises a circular cutter and a connecting member, the circular cutter is coaxially arranged with the measuring cylinder, and the circular cutter is connected to the inner wall of the measuring cylinder through the connecting member.
3. The apparatus of claim 2, wherein the connecting member comprises a fixing rod and a spring, and the measuring cylinder is provided with a fixing hole corresponding to the fixing rod;
the first end of the spring is fixed on the annular cutting knife, the second end of the spring is connected with the first end of the fixing rod, and the second end of the fixing rod is embedded into the corresponding fixing hole.
4. The apparatus of claim 2, wherein the cutting and crushing mechanism further comprises a drill bit, the drill bit is disposed coaxially with the measuring cylinder, and an upper end of the drill bit is fixed in the measuring cylinder.
5. The apparatus of claim 4, wherein the cutting and crushing mechanism further comprises a plurality of crushing blades;
the plurality of crushing cutters are arranged around the drill bit, and the crushing cutters are fixed on the annular cutting cutter.
6. The apparatus of claim 5, wherein the plurality of cutters are equiangularly distributed around the drill bit.
7. The apparatus of claim 1, wherein the drive mechanism comprises an electric ram, a motor, and a support column;
the electric push rod is fixed on the rack, the motor is installed at the lower end of the push rod which is included by the electric push rod, the first end of the supporting column is connected with the rotating shaft of the motor, and the second end of the supporting column is connected with the measuring cylinder.
8. The apparatus of claim 1, wherein a fence line is provided on the graduated cylinder.
9. The apparatus of claim 1, further comprising a telescoping mast, wherein the telescoping mast is fixed above the frame, and the graduated cylinder and the drive mechanism are both mounted on the telescoping mast.
10. The apparatus of claim 1, further comprising a rivet bar mechanism for fixing to the ground to be tested, wherein the rivet bar mechanism is mounted on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120922490.6U CN215518697U (en) | 2021-04-29 | 2021-04-29 | Digging device for measuring compaction degree by sand filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120922490.6U CN215518697U (en) | 2021-04-29 | 2021-04-29 | Digging device for measuring compaction degree by sand filling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215518697U true CN215518697U (en) | 2022-01-14 |
Family
ID=79803224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120922490.6U Active CN215518697U (en) | 2021-04-29 | 2021-04-29 | Digging device for measuring compaction degree by sand filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215518697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152416A (en) * | 2021-04-29 | 2021-07-23 | 中交路桥建设有限公司 | Digging device for measuring compaction degree by sand filling method |
-
2021
- 2021-04-29 CN CN202120922490.6U patent/CN215518697U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152416A (en) * | 2021-04-29 | 2021-07-23 | 中交路桥建设有限公司 | Digging device for measuring compaction degree by sand filling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215726947U (en) | Sampling device for soil detection | |
| CN215518697U (en) | Digging device for measuring compaction degree by sand filling method | |
| CN210375775U (en) | Soil monitoring sampling device for environmental protection engineering | |
| CN205349223U (en) | Drilling equipment for building | |
| CN110346242A (en) | A kind of sand replacement method compactness detection system and its detection method | |
| CN205562197U (en) | Geology sample boring probe | |
| CN116220568B (en) | Drilling instrument for compactness test | |
| JP2007070870A (en) | Ground surveying method and ground surveying apparatus using rotary percussion drill | |
| CN109457684A (en) | A kind of road base layer compactness sampler and its detection method | |
| CN113152416A (en) | Digging device for measuring compaction degree by sand filling method | |
| CN210071375U (en) | Drilling type sampling device for geological exploration | |
| CN211505516U (en) | Mine geology measuring device | |
| CN116577141A (en) | Highway construction rock drilling sampling device | |
| CN209470902U (en) | A kind of detection device for soil moisture content | |
| CN214309619U (en) | Geological engineering sampler | |
| CN213688986U (en) | Soil sampling device for ecological environment monitoring | |
| CN204903189U (en) | Cutting of class rectangular shield impels analogue test system | |
| CN209327026U (en) | A kind of Subgrade Compaction spiral sampler | |
| CN210037258U (en) | Rock-soil body in-situ fidelity sample preparation device | |
| CN220486399U (en) | Foundation compactness detection device | |
| CN215640282U (en) | Road engineering compactness test detection device | |
| CN220893812U (en) | Soil stratified sampling device for hydraulic ring geology | |
| CN218911347U (en) | Ring method detects sampling equipment | |
| CN219977817U (en) | Highway engineering roadbed compactness check out test set | |
| CN215441836U (en) | Experimental facility for highway cement stabilized base compactness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |