CN113818435A - Protective cylinder positioning inspection device and using method thereof - Google Patents
Protective cylinder positioning inspection device and using method thereof Download PDFInfo
- Publication number
- CN113818435A CN113818435A CN202111078039.1A CN202111078039A CN113818435A CN 113818435 A CN113818435 A CN 113818435A CN 202111078039 A CN202111078039 A CN 202111078039A CN 113818435 A CN113818435 A CN 113818435A
- Authority
- CN
- China
- Prior art keywords
- sliding groove
- frame
- sliding
- casing
- infrared
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/04—Guide devices; Guide frames
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides a pile casing positioning inspection device and a using method thereof, which relate to the technical field of mechanical pore-forming cast-in-place pile construction and comprise a cross fixing frame, an infrared centering assembly and a sliding assembly, wherein the cross fixing frame comprises a cross frame and a longitudinal frame, the centers of the cross frame and the longitudinal frame are mutually and vertically arranged, a first sliding groove and a second sliding groove are arranged on the cross frame, and a third sliding groove and a fourth sliding groove are arranged on the longitudinal frame; sliding components are arranged in the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, each sliding component at least comprises a stop piece, and the stop pieces are arranged to be attached to the inner wall of the corresponding protective cylinder; the invention has the advantages that the cast-in-place pile hole casing can be quickly and accurately positioned, the deviation condition of the casing can be timely detected and adjusted, the operation time is short, the construction cost is low, and the operation is convenient.
Description
Technical Field
The invention relates to the technical field of mechanical pore-forming cast-in-place pile construction, in particular to a pile casing positioning and checking device and a using method thereof.
Background
When a mechanical hole is formed in the cast-in-place concrete pile, a pile casing positioning mark is usually measured and placed on the ground, and after the pile casing is installed according to the position, the pile casing is vibrated and sunk to the designed elevation by a vibration hammer.
During construction, in the sinking process of the pile casing, the pile casing is easy to deviate due to stones, vibration and the like in soil, the position of the pile casing needs to be measured again for many times, and the pile casing is adjusted, positioned and installed. The problems of long time spent, low working efficiency, high construction cost and poor hole forming accuracy in the whole construction process are caused.
Disclosure of Invention
The invention aims to provide a pile casing positioning and checking device and a using method thereof, and aims to solve the technical problems of long construction time, low working efficiency, high construction cost and poor hole forming accuracy in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a protective cylinder positioning and checking device, which comprises a cross-shaped fixing frame, an infrared centering assembly and a sliding assembly, wherein:
the cross fixing frame comprises a transverse frame and a longitudinal frame, the centers of the transverse frame and the longitudinal frame are perpendicular to each other, a first sliding groove and a second sliding groove are formed in the transverse frame, and a third sliding groove and a fourth sliding groove are formed in the longitudinal frame;
the sliding assemblies are arranged in the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, each sliding assembly at least comprises a stop piece, and each stop piece is arranged to be attached to the inner wall of the corresponding protective sleeve;
the infrared ray centering assembly is located at the center of the cross-shaped fixing frame and comprises an infrared ray emitter.
Preferably, the horizontal frame and the vertical frame are both provided with a graduated scale.
Preferably, the sliding assembly further comprises a channel-shaped housing and a removable cover, wherein:
the groove-shaped shell comprises a bottom plate and two side plates arranged on two sides of the bottom plate, notches are formed in the tops of the two side plates respectively, the height of each notch is equal to the thickness of the movable cover plate, the width of each notch is equal to the width of the movable cover plate, and the movable cover plates are clamped on the two notches.
Preferably, the stopper is disposed at the center of the channel-shaped housing, and the stopper is disposed such that the top thereof protrudes from the movable cover plate and the bottom thereof protrudes from and is fixedly connected to the bottom plate of the channel-shaped housing.
Preferably, the sliding assembly further comprises a fastening member, and a first connecting structure is disposed at an upper portion of the stopper, and the fastening member is connected with the first connecting structure and used for fastening the sliding assembly.
Preferably, the stop piece adopts round steel, the upper portion mantle fiber of round steel, the fastener adopts butterfly nut.
Preferably, the infrared centering assembly further comprises a fixture sleeve, wherein:
the fixed sleeve is fixedly connected to the center of the cross-shaped fixed frame;
the fixed cover comprises a containing cavity, the infrared emitter is arranged in the containing cavity, a through hole is formed in the bottom of the containing cavity, and the infrared emitted by the infrared emitter penetrates through the through hole and is aligned with the central point of the pile position.
Preferably, the fixed sleeve is a circular steel pipe, a steel plate is fixedly welded at the bottom of the circular steel pipe, and a circular through hole is formed in the center of the steel plate.
A construction method of the pile casing positioning and inspecting device comprises the following steps:
s1: discharging a pile foundation hole site central point and a casing side line on the ground;
s2: placing the pile casing in place;
s3: the position of the sliding assembly is adjusted according to the diameter of the protective cylinder and the scale scales on the transverse frame and the longitudinal frame, so that the outer net sizes of the four stop parts are the same as the inner diameter of the protective cylinder, and the through hole at the bottom of the accommodating cavity is centered;
s4: tightening the fastener;
s5: the protective cylinder positioning inspection device is erected at the upper opening of the protective cylinder, and the fastener is clamped on the inner wall of the protective cylinder;
s6: before the casing enters the soil, fixing an infrared emitter in the infrared centering assembly, and starting the infrared emitter;
s7: and checking whether the infrared projection point is overlapped with the central point of the hole site of the ground pile foundation or not, and adjusting in time if deviation exists.
The invention provides a pile casing positioning inspection device and a use method thereof, the pile casing positioning inspection device comprises a cross fixing frame, an infrared centering assembly and a sliding assembly, the cross fixing frame comprises a transverse frame and a longitudinal frame which are mutually perpendicular in center, two sliding grooves for the sliding assembly to move are arranged on the transverse frame and the longitudinal frame, a stop piece arranged on the sliding assembly is matched, the pile casing deviation condition can be detected and adjusted in time by moving the sliding assembly, the infrared centering assembly is arranged, the cast-in-place pile opening pile casing can be quickly and accurately positioned, the device can be repeatedly used, is suitable for different pile diameters, the pile casing deviation condition can be detected and adjusted at any time in construction, the operation is convenient, the installation speed is high, the operation time is short, the construction cost is low, and the construction field of mechanical pore-forming concrete cast-in-place piles can be widely applied.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a casing positioning and inspecting apparatus according to the present invention;
FIG. 2 is a schematic top view of the positioning and inspecting apparatus for casing according to the present invention;
fig. 3 is a sectional view of the casing positioning inspection device according to the present invention during the construction.
In the figure: 1. a cross-shaped fixing frame; 2. an infrared centering assembly; 3. a sliding assembly; 4. protecting the cylinder; 11. a cross frame; 12. a longitudinal frame; 111. a first chute; 112. a second chute; 121. a third chute; 122. a fourth chute; 21. an infrared emitter; 22. fixing a sleeve; 31. a trough-shaped shell; 32. a removable cover plate; 33. a stopper; 34. a fastener.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a protective sleeve positioning and checking device, and fig. 1 is a schematic structural diagram of the embodiment, and as shown in fig. 1, the device comprises a cross fixing frame 1, an infrared centering assembly 2 and a sliding assembly 3.
The cross fixing frame 1 comprises a cross frame 11 and a longitudinal frame 12, wherein the centers of the cross frame and the longitudinal frame are perpendicular to each other, and the length and the specification are determined according to requirements. The transverse frame 11 is provided with a first sliding chute 111 and a second sliding chute 112, and the longitudinal frame 12 is provided with a third sliding chute 121 and a fourth sliding chute 122; the sliding assemblies 3 are arranged in the first sliding chute 111, the second sliding chute 112, the third sliding chute 121 and the fourth sliding chute 122, each sliding assembly 3 at least comprises a stop piece 33, and each stop piece 33 is used for being attached to the inner wall of the corresponding pile casing 4;
the stopper 33 of the slide unit 3 is inserted into the slide groove, and the slide unit 3 and the stopper 33 reciprocate on the slide grooves of the horizontal frame 11 and the vertical frame 12, thereby detecting the casing having different diameters.
Fig. 2 is a schematic top view of the present embodiment, as shown in fig. 2, the infrared centering assembly 2 is located at the center of the cross-shaped fixing frame 1, the infrared centering assembly 2 includes an infrared emitter 21, and when in use, the infrared emitted by the infrared emitter is centered with the center point of the stake position.
This protect a section of thick bamboo location inspection device, including central mutually perpendicular's crossbearer 11 and vertical frame 12 through setting up cross mount 1, and crossbearer 11 with indulge and all be provided with two spouts that are used for sliding component 3 to remove on the frame 12, the stop part 33 that sets up on the cooperation sliding component 3, can in time detect and adjust the section of thick bamboo off normal condition to protecting through removing sliding component 3, and set up infrared ray centering subassembly 2, can pinpoint bored concrete pile drill way fast and protect a section of thick bamboo, and this device reuse, be applicable to different stake footpaths, can detect and adjust the section of thick bamboo off normal condition at any time in the construction, high durability and convenient operation, the installation rate is fast, the activity duration is short, the construction cost is low, can extensively use machinery pore-forming bored concrete pile construction field.
As optional implementation mode, all be provided with the scale on crossbearer 11 and the vertical frame 12, adjust and control the position of sliding component 3 through the scale, more directly perceived and easily operation, during the use, infrared ray to the stake position central point after, according to stake footpath size, utilize the scale to make a round trip to adjust the position of sliding component 3, make the stop part 33 card of sliding component 3 protect a section of thick bamboo inboard, can detect at any time and adjust in the construction and protect a section of thick bamboo off normal condition, convenient operation.
As an alternative embodiment, fig. 3 is a sectional view of the present embodiment during construction, and as shown in fig. 3, the sliding assembly 3 further includes a trough-shaped shell 31 and a removable cover plate 32.
Wherein, the flute profile shell 31 includes the bottom plate and sets up in two curb plates of bottom plate both sides, and the bottom plate forms with the welding of both sides board, and the top of two curb plates is provided with the notch respectively, and the height of notch is removable cover 32's thickness, and the width of notch is removable cover 32's width, and removable cover 32 joint is on two notches.
Specifically, the removable cover plate 32 is a rectangular steel plate, and when in use, the removable cover plate 32 is located at the top of the groove-shaped shell 31 and is clamped on the notches of the side plates at the two sides of the top of the groove-shaped shell 31.
As an alternative embodiment, the stopper 33 is disposed at the center of the channel-shaped shell 31, and the stopper 33 is disposed to protrude from the movable cover plate 32 at the top and protrude from the bottom plate of the channel-shaped shell 31 at the bottom and is fixedly connected with the bottom plate.
Specifically, the top of the stopper 33 is provided to protrude through the thickness of at least one nut of the flap 32, and the bottom of the stopper 33 protrudes through the bottom plate of the channel case 31 by 50 mm.
As an alternative embodiment, the sliding assembly 3 further comprises a fastening member 34, and the upper portion of the stopper 33 is provided with a first connecting structure, and the fastening member 34 is connected with the first connecting structure for fastening the sliding assembly 3.
Specifically, in this embodiment, the stop member 33 is made of round steel, the upper portion of the round steel is threaded, and the fastening member 34 is made of a butterfly nut, so that the butterfly nut is screwed in from the top threaded end of the round steel when in use, and the lower end of the stop member 33 is fixed to the casing 4 by screwing the bolt.
Set up first spout 111, second spout 112, third spout 121 and fourth spout 122 and be rectangular groove to the groove width of spout slightly is greater than the diameter of round steel, so that slide assembly 3 slides more smoothly when using, saves installation and live time.
As an alternative embodiment, the infrared centering assembly 2 further comprises a fixing sleeve 22, wherein the fixing sleeve 22 is fixedly connected to the center of the cross fixing frame 1 and is welded and fixed with the cross frame 11.
The fixing sleeve 22 comprises a containing cavity, the infrared emitter 21 is arranged inside the containing cavity, and a through hole is formed in the bottom of the containing cavity and used for enabling infrared rays emitted by the infrared emitter to be aligned with the central point of the pile position through the through hole.
Specifically, the fixing sleeve 22 is a circular steel pipe, a steel plate is fixedly welded to the bottom of the circular steel pipe, a circular through hole is formed in the center of the steel plate, and infrared rays penetrate through the circular through hole to be aligned with the center point of the pile position.
A construction method of the pile casing positioning and inspecting device comprises the following steps:
s1: discharging the center point of the pile foundation hole site and the side line of the casing 4 on the ground;
s2: placing the protective cylinder 4 in place;
s3: the position of the sliding component 3 is adjusted according to the diameter of the protective cylinder 4 and the scale rulers on the transverse frame 11 and the longitudinal frame 12, so that the outer net size of the four stop parts 33 is the same as the inner diameter of the protective cylinder 4, and the through hole at the bottom of the accommodating cavity of the fixed sleeve 22 is centered;
s4: tightening the fastener 34;
s5: the protective cylinder positioning inspection device is erected at the upper opening of the protective cylinder 4, and the fastener 34 is clamped on the inner wall of the protective cylinder 4;
s6: before the casing 4 enters the soil, fixing an infrared emitter 21 in the infrared centering assembly 2, and starting the infrared emitter 21;
s7: and checking whether the infrared projection point is overlapped with the central point of the hole site of the ground pile foundation or not, and adjusting in time if deviation exists.
In the installation process of the pile casing 4, because the ground central point is damaged, after the infrared centering assembly 2 loses the function, two strip type horizontal pipes can be arranged on the transverse frame 11 and the longitudinal frame 12 of the cross fixing frame 1, the deviation condition of the pile casing 4 can be checked by checking the levelness of the cross fixing frame 1, and the pile casing can be adjusted in time according to the condition.
The beneficial effects of the embodiment are as follows:
include central mutually perpendicular's crossbearer 11 and indulge frame 12 through setting up cross mount 1, and crossbearer 11 with indulge and all be provided with two spouts that are used for sliding part 3 to remove on the frame 12, the stop part 33 that sets up on the cooperation sliding part 3, can in time detect and adjust the fender section of thick bamboo off normal condition through removing sliding part 3, and set up infrared ray centering subassembly 2, can pinpoint bored concrete pile drill way fast and protect a section of thick bamboo, and this device reuse, be applicable to different stake footpath, can detect at any time in the construction and adjust the fender section of thick bamboo off normal condition, high durability and convenient operation, the installation rate is fast, the operating time is short, the construction cost is low, can wide application machinery pore-forming concrete bored pile construction field.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. The utility model provides a protect a section of thick bamboo location inspection device which characterized in that, includes the cross mount, infrared ray centering subassembly and sliding assembly, wherein:
the cross fixing frame comprises a transverse frame and a longitudinal frame, the centers of the transverse frame and the longitudinal frame are perpendicular to each other, a first sliding groove and a second sliding groove are formed in the transverse frame, and a third sliding groove and a fourth sliding groove are formed in the longitudinal frame;
the sliding assemblies are arranged in the first sliding groove, the second sliding groove, the third sliding groove and the fourth sliding groove, each sliding assembly at least comprises a stop piece, and each stop piece is arranged to be attached to the inner wall of the corresponding protective sleeve;
the infrared ray centering assembly is located at the center of the cross-shaped fixing frame and comprises an infrared ray emitter.
2. A casing positioning inspection apparatus as claimed in claim 1, wherein: and the transverse frame and the longitudinal frame are both provided with a scale.
3. A casing positioning inspection apparatus according to claim 1 or 2, wherein: the sliding assembly further comprises a trough-shaped shell and a removable cover plate, wherein:
the groove-shaped shell comprises a bottom plate and two side plates arranged on two sides of the bottom plate, notches are formed in the tops of the two side plates respectively, the height of each notch is equal to the thickness of the movable cover plate, the width of each notch is equal to the width of the movable cover plate, and the movable cover plates are clamped on the two notches.
4. A casing positioning inspection apparatus as claimed in claim 3, wherein: the stop piece is arranged to be positioned at the center of the trough-shaped shell, the top of the stop piece extends out of the movable cover plate, and the bottom of the stop piece extends out of the bottom plate of the trough-shaped shell and is fixedly connected with the bottom plate.
5. A casing positioning inspection device according to claim 4, wherein: the sliding assembly further comprises a fastener, a first connecting structure is arranged on the upper portion of the stop piece, and the fastener is connected with the first connecting structure and used for fastening the sliding assembly.
6. A casing positioning inspection device according to claim 5, wherein: the stop piece adopts the round steel, the upper portion mantle fiber of round steel, the fastener adopts butterfly nut.
7. A casing positioning inspection apparatus according to claim 1 or 2, wherein: infrared ray centering subassembly still includes fixed cover, wherein:
the fixed sleeve is fixedly connected to the center of the cross-shaped fixed frame;
the fixed cover comprises a containing cavity, the infrared emitter is arranged in the containing cavity, a through hole is formed in the bottom of the containing cavity, and the infrared emitted by the infrared emitter penetrates through the through hole and is aligned with the central point of the pile position.
8. A casing positioning inspection apparatus as claimed in claim 7, wherein: the fixed cover adopts circular steel pipe, the bottom fixed welding steel sheet of circular steel pipe, circular through-hole is seted up in the center department of steel sheet.
9. A construction method of the casing positioning inspection device according to any one of claims 1 to 8, comprising the steps of:
s1: discharging a pile foundation hole site central point and a casing side line on the ground;
s2: placing the pile casing in place;
s3: the position of the sliding assembly is adjusted according to the diameter of the protective cylinder and the scale scales on the transverse frame and the longitudinal frame, so that the outer net sizes of the four stop parts are the same as the inner diameter of the protective cylinder, and the through hole at the bottom of the accommodating cavity is centered;
s4: tightening the fastener;
s5: the protective cylinder positioning inspection device is erected at the upper opening of the protective cylinder, and the fastener is clamped on the inner wall of the protective cylinder;
s6: before the casing enters the soil, fixing an infrared emitter in the infrared centering assembly, and starting the infrared emitter;
s7: and checking whether the infrared projection point is overlapped with the central point of the hole site of the ground pile foundation or not, and adjusting in time if deviation exists.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078039.1A CN113818435A (en) | 2021-09-15 | 2021-09-15 | Protective cylinder positioning inspection device and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111078039.1A CN113818435A (en) | 2021-09-15 | 2021-09-15 | Protective cylinder positioning inspection device and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113818435A true CN113818435A (en) | 2021-12-21 |
Family
ID=78922484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111078039.1A Pending CN113818435A (en) | 2021-09-15 | 2021-09-15 | Protective cylinder positioning inspection device and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113818435A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523238A (en) * | 2022-03-15 | 2022-05-24 | 上海雅跃智能科技有限公司 | Centering and positioning device for tubular pile inner wall welding equipment |
| CN116575455A (en) * | 2023-07-11 | 2023-08-11 | 山西一建集团有限公司 | Steel sheet pile installs auxiliary positioning device |
-
2021
- 2021-09-15 CN CN202111078039.1A patent/CN113818435A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114523238A (en) * | 2022-03-15 | 2022-05-24 | 上海雅跃智能科技有限公司 | Centering and positioning device for tubular pile inner wall welding equipment |
| CN114523238B (en) * | 2022-03-15 | 2024-05-07 | 上海雅跃智能科技有限公司 | Centering and positioning device for tubular pile inner wall welding equipment |
| CN116575455A (en) * | 2023-07-11 | 2023-08-11 | 山西一建集团有限公司 | Steel sheet pile installs auxiliary positioning device |
| CN116575455B (en) * | 2023-07-11 | 2023-09-08 | 山西一建集团有限公司 | Steel sheet pile installs auxiliary positioning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113818435A (en) | Protective cylinder positioning inspection device and using method thereof | |
| CN105525625A (en) | Construction method and device of pre-embedded bolts of fixed steel column base | |
| CN203625921U (en) | Precision control device for pre-embedded mounting of foundation bolts | |
| CN210571111U (en) | A pressure cell installation fixing device for measuring tunnel country rock pressure | |
| CN108169018A (en) | A kind of new concrete test block elastic modulus tester | |
| CN212865883U (en) | Deformation monitoring device of accurate foundation ditch | |
| CN216474984U (en) | Protect a section of thick bamboo location inspection device | |
| JP2012021319A (en) | Centering fixture | |
| CN110344454A (en) | A kind of impact drill construction stake foundation pile position capacity checking device and its check method | |
| CN107178074B (en) | Pile side soil pressure detection and protection device and installation method | |
| CN211824382U (en) | Two-dimensional area array laser displacement meter fixing pluggable device | |
| CN210922593U (en) | Foundation pit side slope gradient measuring instrument | |
| CN213773301U (en) | Fixing device is buried underground to side direction soil pressure cell | |
| CN114279837A (en) | Segment detector for vertical vacuum tunnel, tilter and mounting method of detector | |
| CN110685301B (en) | Arbitrary-appearance assembled test block for high and steep slope rock rolling test | |
| CN210216373U (en) | Protection fixing device for pressure box for rock-soil body pressure test | |
| KR101495318B1 (en) | Civil and building structures for mounting support | |
| CN115045328B (en) | Foundation construction method for portal frame type installation for weighing apparatus verification | |
| CN208887553U (en) | A kind of simple tubular pole testing apparatus for verticality | |
| CN217424379U (en) | Measurement reference structure integrating ground settlement monitoring elevation and plane control point | |
| CN107290275B (en) | Vibration type concrete pavement detector | |
| CN207540891U (en) | A kind of new concrete test block elastic modulus tester | |
| CN219039037U (en) | Fixed auxiliary tool for compaction degree detection substrate of earthwork roadbed sand filling method | |
| KR200403255Y1 (en) | Indicated Mark for Earthwork | |
| CN216349248U (en) | Anchor rod stress sensor |
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 |