CN111677022B - Sediment thickness detection device before bored concrete pile formation - Google Patents
Sediment thickness detection device before bored concrete pile formation Download PDFInfo
- Publication number
- CN111677022B CN111677022B CN202010537047.7A CN202010537047A CN111677022B CN 111677022 B CN111677022 B CN 111677022B CN 202010537047 A CN202010537047 A CN 202010537047A CN 111677022 B CN111677022 B CN 111677022B
- Authority
- CN
- China
- Prior art keywords
- torsion
- scale
- column
- screw thread
- steel ball
- 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
- 239000013049 sediment Substances 0.000 title claims abstract description 52
- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 title description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 239000002893 slag Substances 0.000 claims description 12
- 238000005266 casting Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 11
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/066—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (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)
- Structural Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a sediment thickness detection device before pile forming of a cast-in-place pile, which comprises a connecting rod, a first thread disc, a second thread disc and a torsion mechanism, wherein the connecting rod comprises a polished rod, a threaded rod and a drill bit, the torsion mechanism, the threaded rod, the polished rod and the drill bit are sequentially connected in a threaded manner from top to bottom, the first thread disc and the second thread disc are sleeved on the connecting rod, four pins are inserted on the first thread disc in an array manner, a scale indicating plate is further vertically arranged on the first thread disc, the torsion mechanism comprises a torsion column, a dial and a positioning column, the dial and the torsion column are sequentially sleeved on the positioning column, and the dial is connected with the torsion column and the positioning column through a limiting piece. The components of the device are light in weight and belong to assembly components, so that the device is convenient to carry; the component has strong stability in the measurement process, and can reduce measurement errors; the component has high sensitivity, and can accurately distinguish whether the drill bit crosses the sediment layer to enter the bearing layer.
Description
Technical Field
The invention belongs to the technical field of construction of foundation cast-in-place piles of building engineering houses, and particularly relates to a device for detecting the thickness of sediments before pile formation of cast-in-place piles.
Background
In recent decades, with the development of the construction industry, super high-rise buildings are increasingly in China, and when the super high-rise buildings are in places with poor soil quality, pile foundations are needed, the pile diameters of the general pile foundations are large, and the cast-in-place piles are widely applied. Compared with other piles such as precast piles, the bored concrete pile has the greatest defects that the hole bottom sediment cannot be thoroughly cleaned, the problem of insufficient bearing capacity, overlarge pile position deviation, excessive pile hole inclination and the like occurs due to the overlarge hole bottom sediment, and the quality problems are often fatal because the design requirement is difficult to meet after pile forming and the remedy is difficult. Therefore, it can be known that the sediment is a main factor affecting the bearing capacity of the pile foundation, and the excessive sediment can cause the maximum loss of end resistance to be more than 80%, and the maximum loss of side resistance to be more than 70%, so the sediment thickness must be strictly controlled, according to the specification of building pile foundation technical specification (JGJ 94-2008): before pouring concrete, the thickness of the sediment at the bottom of the hole is not more than 50mm for the end-bearing pile; for friction piles should not be greater than 100mm; the pile with pulling resistance and horizontal force resistance is not larger than 200mm. In order to measure the accurate sediment thickness to ensure that the pile can reach the design requirement as much as possible, sediment thickness detection device is needed to measure sediment thickness.
The current method for measuring the thickness of the sediment is mainly divided into a heavy hammer method, an ultrasonic method and a sampling box detection method. The volume of the heavy hammer (generally more than or equal to 1 kg) adopted in the weight measuring method is not excessively large. The same hanging hammer and the same hanging method are adopted, the ball is immersed into the slurry in the hole, the top surface position of the sediment is judged according to the hand feeling of an operator, when the ball of the hammer is felt to reach the top surface of the sediment, the length Hc of the placed measuring rope is recorded in time, and then compared with the drilling depth Hz, the difference delta H between the two values is the thickness of the sediment. The method has the advantages that the thickness of the sediment at the bottom of the hole is relatively visual and convenient, but the influence of artificial factors is relatively large in specific operation, and the measurement accuracy is relatively poor, so that the method is not generally adopted in large-scale important engineering. The ultrasonic method utilizes acoustic wave conversion to measure the thickness of the sediment, and the measurement result is relatively accurate, but the ultrasonic instrument has high cost and is not suitable for large-scale use. The detection method of the sampling box is to hang the sampling box to the bottom of the hole after the hole cleaning is finished, and the thickness of the slag soil deposited in the box is measured before the concrete is poured. The method is troublesome to operate on site, and the uncertainty factor is large, so that the measurement accuracy is low.
Disclosure of Invention
The invention provides a device for detecting the thickness of sediment before pile forming of a cast-in-place pile, which aims to solve the problems in the background technology. The technical scheme of the invention is realized as follows:
The utility model provides a sediment thickness detection device before bored concrete pile formation, includes connecting rod, first screw thread dish, second screw thread dish and torsion mechanism, the connecting rod includes polished rod, threaded rod and drill bit, torsion mechanism, threaded rod, polished rod, drill bit follow last threaded connection down in proper order, first screw thread dish all cup joints with the second screw thread dish on the connecting rod, just first screw thread dish threaded connection is in on the threaded rod, second screw thread dish threaded connection is in on the drill bit, the array has pegged graft four pins on the first screw thread dish, still be equipped with a scale indicating plate perpendicularly on the first screw thread dish, torsion mechanism includes torsion post, calibrated scale and reference column, torsion post in proper order on the reference column, the calibrated scale is located between torsion post and the reference column, the torsion post passes through the bolt tightening on the reference column, be connected through the locating part between calibrated scale and torsion post, the reference column.
In the device for detecting the thickness of sediments before pile forming of the cast-in-place pile, the limiting piece comprises a first steel ball, a second steel ball and a first spring, the outer ring of the positioning column is in a ladder column shape, the dial and the torsion column are sleeved on a small-diameter column of the positioning column, four rectangular grooves are arranged on the bottom array of the torsion column, four steel ball grooves are arranged on the upper end face array of the positioning column, the first steel ball and the first spring are pressed in the rectangular grooves, and the second steel ball is arranged in the steel ball grooves.
In the device for detecting the thickness of sediment before pile forming of the bored concrete pile, the upper end face of the dial is provided with four first arc-shaped steel ball grooves corresponding to the rectangular grooves, and the lower end face of the dial is provided with four second arc-shaped steel ball grooves corresponding to the steel ball grooves.
In the device for detecting the thickness of sediment before pile forming of the cast-in-place pile, a bump is arranged on the first threaded disc, a scale indication plate slot and a pressing piece mounting slot are arranged in the bump, the two pressing piece mounting slots are symmetrically arranged on two sides of the scale indication plate slot, the scale indication plate is clamped in the scale indication plate slot through the pressing piece, the pressing piece is arranged in the pressing piece mounting slot, the pressing piece comprises a pressing plate and a second spring, two ends of the second spring are respectively and fixedly connected with the first threaded disc and the pressing plate, and the scale indication plate is clamped between the two pressing plates.
In the device for detecting the thickness of the sediment before the pile is formed by the cast-in-place pile, the number of the polished rods is more than 1.
In the device for detecting the thickness of sediment before pile forming of the bored concrete pile, the scale indication plate stands on the side of the scale disc, vertical scales are arranged on the side, close to the scale disc, of the scale indication plate, and circumferential scales are arranged on the scale disc.
In the device for detecting the thickness of the sediment before the pile is formed by the cast-in-place pile, two symmetrical torsion bars are arranged on the side face of the torsion column.
In the device for detecting the thickness of sediment before pile forming of the filling pile, the threaded rod is provided with a large section of threads, and the lower end of the drill bit is provided with a small section of threads.
The device for detecting the thickness of the sediment before pile forming of the bored concrete pile has the following beneficial effects:
(1) The components of the device are light in weight and belong to assembly components, so that the device is convenient to carry; the component has strong stability in the measurement process, and can reduce measurement errors; the component has high sensitivity, and can accurately distinguish whether the drill bit crosses the sediment layer to enter the bearing layer.
(2) The first thread disc is matched with the pin for use, so that effective support is provided for the whole device, the torque mechanism is convenient for applying force, and the thickness of a slag layer can be obtained according to the moving distance of the first thread disc on the threaded rod;
(3) The second thread disc is arranged, so that sediment can be perceived before measurement, the drill bit is isolated above the sediment layer, and the bottom of the second thread disc and the bottom of the drill bit are on the same horizontal plane before measurement, namely close to the sediment, so that the accurate measurement of the thickness of the sediment layer is facilitated;
(4) The torsion mechanism is arranged, so that the sensitivity of the device can be increased, and whether the drill bit contacts the bearing layer can be rapidly judged, so that the purpose of accurately measuring the thickness of the slag layer is achieved;
(5) The setting of lug and bullet casting die for the scale instruction board can very conveniently install on first screw thread dish to can carry out upper and lower position control in a flexible way, the position of first screw thread dish when according to the measurement adjusts the upper and lower position of scale instruction board, makes the top surface of scale disc is aimed at to certain integer scale mark or zero scale mark of scale instruction board, is convenient for read accurate connecting rod 1 downwardly moving's displacement, in order to obtain accurate sediment layer degree of depth.
Drawings
FIG. 1 is a schematic working diagram of a device for detecting the thickness of sediment before pile formation of a cast-in-place pile according to the present invention;
FIG. 2 is a sectional view of a device for detecting the thickness of sediment before pile formation of a cast-in-place pile according to the present invention;
FIG. 3 is a cross-sectional view of the torsion mechanism of the present invention;
fig. 4 is a schematic view of another direction structure of the connection of the first thread disc and the scale indicator plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In a sediment thickness detection device before bored concrete pile formation shown in fig. 1 to 4, including connecting rod 1, first screw thread dish 2, second screw thread dish 3 and torsion mechanism 4, connecting rod 1 includes polished rod 11, threaded rod 12 and drill bit 13, drill bit 13 bottom is cross toper, torsion mechanism 4, threaded rod 12, polished rod 11, drill bit 13 is threaded connection in proper order from top to bottom, the quantity of polished rod 11 is more than 1, when the stake is dark, can splice many polished rods in order to satisfy the stake deep requirement, first screw thread dish 2 and second screw thread dish 3 all cup joint on connecting rod 1, be equipped with the large-section screw thread on threaded rod 12, drill bit 13 lower extreme is equipped with the minor segment screw thread, first screw thread dish 2 threaded connection is on threaded rod 12, second screw thread dish 3 threaded connection is on drill bit 13, the last array grafting of first screw thread dish 2 has four pins 5, still be equipped with the scale plate 7 perpendicularly on the first screw thread dish 2, scale plate 7 stands up in the calibrated scale 42 side, the calibrated scale 7 near calibrated scale 42 side is equipped with vertical scale, 42 is equipped with circumference scale, torsion mechanism 4 includes and twists round scale 42, and is equipped with the knob 43, the locating stud 43 is located on the position stud 43 and the locating stud 43 is located between the locating stud 43 and the locating stud 43 in proper order by twisting the position stud 43, the locating stud 43. The first thread disc 2 is matched with the pin 5 to provide effective support for the whole device, so that the torsion mechanism 4 can apply force conveniently, and the thickness of a slag layer can be obtained according to the moving distance of the first thread disc 2 on the threaded rod 12; the arrangement of the second thread disc 3 can sense the sediment before measurement and isolate the drill bit 13 above the sediment layer, and the bottom of the second thread disc 3 and the bottom of the drill bit 13 are on the same horizontal plane before measurement, namely close to the sediment, so that the accurate measurement of the sediment layer thickness is facilitated; the torsion mechanism 4 is arranged, so that the sensitivity of the device can be increased, and whether the drill bit 13 contacts the bearing layer can be rapidly judged, so that the purpose of accurately measuring the thickness of the slag layer is achieved.
The limiting member 44 comprises a first steel ball 441, a second steel ball 442 and a first spring 443, the outer ring of the positioning column 43 is in a ladder column shape, the dial 42 and the torsion column 41 are all sleeved on a small diameter column of the positioning column 43, four rectangular grooves 411 are arranged at the bottom of the torsion column 41 in an array manner, four steel ball grooves 431 are arranged at the upper end face of the positioning column 43 in an array manner, the first steel ball 441 and the first spring 443 are pressed in the rectangular grooves 411, the second steel ball 442 is arranged in the steel ball grooves 431, four first arc-shaped steel ball grooves corresponding to the rectangular grooves 411 are arranged at the upper end face of the dial 42, and four second arc-shaped steel ball grooves corresponding to the steel ball grooves 431 are arranged at the lower end face of the dial 42. The torsion bar 412 rotates to drive the connecting rod 1 to rotate forward to enter the sediment layer, and the rotation radian of the dial 42 is different due to different applied torsion, and the read scale increment degree is also different, so that whether the connecting rod 1 enters the bearing layer from the sediment layer can be judged through the increment degree of the scale of the dial 42, and when the connecting rod contacts the bearing layer, the torsion applied to the torsion bar 412 is rapidly increased, and the reading pointed by the scale indication plate 7 is also rapidly increased.
Be equipped with a lug on the first screw thread dish 2, be equipped with scale instruction board slot 21 and bullet pressure spare mounting groove 22 in the lug, scale instruction board slot 21 both sides are located to two bullet pressure spare mounting groove 22 symmetries, scale instruction board 7 is through bullet casting die 8 chucking in scale instruction board slot 21, bullet casting die 8 is arranged in bullet casting die mounting groove 22, bullet casting die 8 includes clamp plate 81 and second spring 82, first screw thread dish 2 of second spring 82 both ends fixed connection respectively and clamp plate 81, scale instruction board 7 presss from both sides between two clamp plates 81, the zero scale of scale instruction board 7 is at the uppermost. The setting of lug and spring 8 for scale instruction board 7 can very conveniently install on first screw thread dish 2, and can carry out upper and lower position control in a flexible way, the upper and lower position of scale instruction board 7 is adjusted according to the position of first screw thread dish 2 when measuring, make the certain integer scale mark or the zero scale mark of scale instruction board 7 aim at the top surface of calibrated scale 42, be convenient for read accurate connecting rod 1 downwardly moving's displacement, in order to obtain accurate sediment layer degree of depth.
When in measurement, the torsion mechanism 4 is required to be rotated to twist the first spring so as to drive the connecting rod 1 to rotate, so that the rod piece slowly enters the slag layer, and the force used can be read on the reading disc of the torsion mechanism 4 every 1 cm of the connecting rod 1 enters the slag layer. Because the connecting rod 1 is subject to different resistances in the movement of the sediment layer and the bearing layer, the force used when measuring that the connecting rod 1 goes deep 1 cm at a certain moment is significantly increased by reading on the reading disc, which means that the end of the connecting rod 1 and crossing the sediment layer enters the bearing layer. This allows an accurate measurement of the displacement of the descent of the connecting rod 1, which connecting rod 1 represents the thickness of the layer of slag.
After the bored concrete pile is formed, the connecting rod 1 is spliced well, then sequentially passes through the first thread disk 2 and the second thread disk 3, finally, a torsion mechanism 4 is arranged above the connecting rod 1, then the device is slowly placed into the hole until the second thread disk 3 contacts with the upper surface of the slag layer, the first thread disk 2 contacts with the ground base surface, the first thread disk 2 is nailed on the ground base surface by the pin 5, the scale indicating plate 7 is adjusted up and down, a certain integer scale mark of the scale indicating plate 7 is aligned with the top surface of the dial 42, a reading A is recorded, the force application torsion mechanism 4 is started to enable the connecting rod 1 to slowly enter the slag layer, meanwhile, the reading corresponding to the dial 42 is paid attention to every time the connecting rod 1 penetrates 1 cm, the reading of the reading disk is obviously increased compared with the prior art, the end of the rod piece starts to enter the bearing layer at the moment, the force application is stopped, the reading B of the scale indicating plate 7 is read again, and the difference of the reading AB is the thickness of the slag layer to be measured.
The present invention is not limited to the embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a sediment thickness detection device before bored concrete pile becomes stake, its characterized in that includes connecting rod (1), first screw thread dish (2), second screw thread dish (3) and torsion mechanism (4), connecting rod (1) include polished rod (11), threaded rod (12) and drill bit (13), torsion mechanism (4), threaded rod (12), polished rod (11), drill bit (13) are threaded connection from top to bottom in proper order, first screw thread dish (2) all cup joint with second screw thread dish (3) on connecting rod (1), just first screw thread dish (2) threaded connection is in on threaded rod (12), second screw thread dish (3) threaded connection is in on drill bit (13), array grafting has four pins (5) on first screw thread dish (2), still be equipped with a scale indicator board (7) perpendicularly on first screw thread dish (2), torsion mechanism (4) include torsion post (41), calibrated scale (42) and reference column (43), torsion post (41) are in proper order in torsion post (41) are in on torsion post (43) are located on screw post (43), the dial (42) is connected with the torsion column (41) and the positioning column (43) through a limiting piece (44);
The limiting part (44) comprises a first steel ball (441), a second steel ball (442) and a first spring (443), the outer ring of the positioning column (43) is in a ladder column shape, the dial (42) and the torsion column (41) are sleeved on a small-diameter column of the positioning column (43), four rectangular grooves (411) are formed in the bottom array of the torsion column (41), four steel ball grooves (431) are formed in the upper end face array of the positioning column (43), the first steel ball (441) and the first spring (443) are pressed in the rectangular grooves (411), and the second steel ball (442) is arranged in the steel ball grooves (431);
Four first arc steel ball grooves corresponding to the rectangular grooves (411) are formed in the upper end face of the dial (42), and four second arc steel ball grooves corresponding to the steel ball grooves (431) are formed in the lower end face of the dial;
Be equipped with a lug on first screw thread dish (2), be equipped with scale instruction board slot (21) and bullet pressure spare mounting groove (22) in the lug, two bullet pressure spare mounting groove (22) symmetry are located scale instruction board slot (21) both sides, scale instruction board (7) are in through bullet casting die (8) chucking in scale instruction board slot (21), bullet pressure spare (8) are arranged in bullet pressure spare mounting groove (22), bullet pressure spare (8) include clamp plate (81) and second spring (82), second spring (82) both ends fixed connection respectively first screw thread dish (2) and clamp plate (81), scale instruction board (7) clamp between two clamp plates (81).
2. A pile-forming pre-slag thickness detection device according to claim 1, characterized in that the number of polished rods (11) is more than 1.
3. The device for detecting the thickness of sediment before pile forming of the bored pile according to claim 1, wherein the scale indication plate (7) stands beside the scale disc (42), a vertical scale is arranged on the scale indication plate (7) near the scale disc (42), and a circumferential scale is arranged on the scale disc (42).
4. The device for detecting the thickness of the sediment before the pile forming of the cast-in-place pile according to claim 1, wherein the side surface of the torsion column (41) is provided with two symmetrical torsion bars (412).
5. The device for detecting the thickness of the sediment before the pile forming of the cast-in-place pile according to claim 1, wherein the threaded rod (12) is provided with a large section of threads, and the lower end of the drill bit (13) is provided with a small section of threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010537047.7A CN111677022B (en) | 2020-06-12 | 2020-06-12 | Sediment thickness detection device before bored concrete pile formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010537047.7A CN111677022B (en) | 2020-06-12 | 2020-06-12 | Sediment thickness detection device before bored concrete pile formation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111677022A CN111677022A (en) | 2020-09-18 |
| CN111677022B true CN111677022B (en) | 2024-07-09 |
Family
ID=72435519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010537047.7A Active CN111677022B (en) | 2020-06-12 | 2020-06-12 | Sediment thickness detection device before bored concrete pile formation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111677022B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295125B (en) * | 2021-06-21 | 2023-02-28 | 重庆工商大学 | Array type sediment thickness detection device, system and detection method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212358401U (en) * | 2020-06-12 | 2021-01-15 | 东华理工大学 | A device for detecting the thickness of sediment before the cast-in-place pile is formed into a pile |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209353383U (en) * | 2018-11-15 | 2019-09-06 | 中国建筑第八工程局有限公司 | Sediment detection device |
| CN209745188U (en) * | 2019-06-24 | 2019-12-06 | 中冶建工集团有限公司 | Bored concrete pile sediment thickness measurement appearance |
| CN110499793B (en) * | 2019-09-09 | 2024-01-02 | 浙江诚博建设工程有限公司 | Tool for measuring pile bottom sediment thickness of cast-in-place pile and using method thereof |
-
2020
- 2020-06-12 CN CN202010537047.7A patent/CN111677022B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212358401U (en) * | 2020-06-12 | 2021-01-15 | 东华理工大学 | A device for detecting the thickness of sediment before the cast-in-place pile is formed into a pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111677022A (en) | 2020-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111677022B (en) | Sediment thickness detection device before bored concrete pile formation | |
| CN118756766A (en) | A dynamic excitation ring shear apparatus with controllable normal stress on both sides | |
| CN212358401U (en) | A device for detecting the thickness of sediment before the cast-in-place pile is formed into a pile | |
| CN111307710A (en) | Central drawing device and measuring method for simultaneous determination of bond strength and slip distance | |
| CN109778922B (en) | Device and method for detecting thickness of pile hole sediment of cast-in-situ bored pile | |
| CN110219325B (en) | A pile foundation sediment thickness detection tool | |
| JP4115216B2 (en) | In-hole vertical loading test method and apparatus | |
| CN215165894U (en) | Special umbrella-type aperture detection device of bored concrete pile | |
| CN209958412U (en) | Pile foundation sediment thickness detection instrument | |
| CN214574187U (en) | Precast pile gradient detection device | |
| CN223243529U (en) | Building multifunctional integrated pile hole detection device | |
| CN211773960U (en) | Detection apparatus for stake hole sediment thickness | |
| CN222730630U (en) | Device for measuring sediment thickness of underwater concrete filling pile | |
| CN223523162U (en) | A model test device for testing the vertical bearing capacity of pile foundations | |
| CN220751863U (en) | In-situ soil and structure contact surface shearing test device | |
| CN115855801B (en) | An anchor bolt pull-out bearing capacity simulation test system and method | |
| CN220704604U (en) | Device for rapidly measuring perpendicularity of prestressed high-strength concrete pipe pile | |
| CN219121260U (en) | Cast-in-place pile top concrete elevation measuring device | |
| CN210426694U (en) | Underground water level measuring device | |
| CN222025125U (en) | Pile foundation drill core detects uses mechanism | |
| CN119756197B (en) | Optical fiber detection sensor for sediment thickness at bottom of drilling hole | |
| CN223034086U (en) | Existing pile foundation inner reinforcement meter installation positioning device and pile body axial force detection system | |
| CN119374002B (en) | Mapping instrument positioning equipment for geological survey | |
| CN221941461U (en) | A combined cast-in-place pile sediment thickness measuring device | |
| CN219910742U (en) | Pile foundation hole detects frock |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |