CN212772501U - Light-sensitive pile bottom sediment thickness detection device - Google Patents
Light-sensitive pile bottom sediment thickness detection device Download PDFInfo
- Publication number
- CN212772501U CN212772501U CN202020857181.0U CN202020857181U CN212772501U CN 212772501 U CN212772501 U CN 212772501U CN 202020857181 U CN202020857181 U CN 202020857181U CN 212772501 U CN212772501 U CN 212772501U
- Authority
- CN
- China
- Prior art keywords
- measurement probe
- light source
- depth measurement
- depth
- probe
- 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
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the field of industrial and civil building foundations, in particular to a device for detecting the thickness of sediments at the bottom of a light-sensitive pile. The depth measurement probe is in a hollow tubular shape, a thread is carved at one end of the depth measurement probe, the mud pump is connected with the hose, the other end of the hose is connected with the depth measurement probe through the thread, a waterproof strong light source is arranged on one side inside the pipe wall of the depth measurement probe, a light sensor is arranged on the opposite side of the pipe wall, the waterproof strong light source is connected with the strong light source battery pack through a strong light source power supply line, and the light sensor is respectively connected with the indicator lamp and the strong light source battery pack through. A filter screen is arranged at the end close to the screw thread inside the depth measuring probe. A lengthened pipe is arranged between the depth measurement probe and the hose, a thread which is matched with the depth measurement probe is carved at one end of the lengthened pipe, and a thread which is consistent with the depth measurement probe is carved at the other end of the lengthened pipe. The device for detecting the sediment thickness at the bottom of the light-sensitive pile can quickly detect the sediment thickness.
Description
Technical Field
The invention relates to the field of industrial and civil building foundations, in particular to a device for detecting the thickness of sediments at the bottom of a light-sensitive pile.
Background
The common basic form of modern building during pile foundation, including residential building, office building, high-speed railway station, bridge etc. the pile foundation transmits superstructure's load to basic bearing layer, provides stable safe support for superstructure. Pile foundation piling modes are various, such as punching cast-in-place piles, punching piles, high-pressure jet grouting piles and the like. For the pile foundation construction method of forming the pile after the hole is formed, the hole bottom sediment caused by the conditions of the falling of the soil body of the hole wall, incomplete hole bottom cleaning and the like is difficult to avoid. The bottom sediment can greatly reduce the bearing capacity of the pile foundation, the larger the sediment thickness is, the larger the bearing capacity attenuation is, the unqualified pile foundation in the bearing capacity detection is caused, and the huge cost increase caused by subsequent treatment measures is caused. At present, in the construction process of a pile foundation, the thickness of pile bottom sediment is rarely detected after hole cleaning, so that the condition that a hole bottom core sample is broken when coring is carried out on the pile foundation after a pile is formed is caused.
Disclosure of Invention
The invention aims to provide a device for detecting the thickness of sediments at the bottom of a light-sensitive pile.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a sediment thickness detection device at bottom of light sense pile, the depth measurement probe is the cavity tubulose, and the screw thread is carved with to one end, slush pump and hose connection, and the other end of hose passes through the screw thread and is connected with the depth measurement probe, and the inside one side of depth measurement probe pipe wall is equipped with waterproof intense light source, and the offside is equipped with photo sensor, and waterproof intense light source passes through the intense light source power supply line and links to each other with intense light source group battery, and photo sensor passes through photo sensor power supply and the data line links to each other with pilot lamp.
In the device for detecting the thickness of the sediment at the bottom of the light sensing pile, the filter screen is arranged at the near thread end inside the depth measuring probe.
According to the device for detecting the thickness of the sediment at the bottom of the light-sensitive pile, the lengthened pipe is arranged between the depth measuring probe and the hose, the thread which is matched with the depth measuring probe is carved at one end of the lengthened pipe, and the thread which is consistent with the depth measuring probe is carved at the other end of the lengthened pipe.
The working principle of the invention is that a mud pump is used for sucking the sediment at the bottom of the hole into the depth measuring probe, the light induction principle is blocked, the distance from the surface of the sediment to the top of the hole is further judged according to the position of the extension rod, the actual hole depth is measured, and the difference value is the sediment thickness.
Drawings
FIG. 1 is a schematic structural view of a depth-measuring probe according to the present invention;
FIG. 2 is a schematic view of the present invention in use;
the labels in the figure are: 1. a light-induced power supply and data line; 2. filtering with a screen; 3. a light sensor; 4. an intense light source power supply line; 5. an intense light source; 6. a sounding probe; 7. a slurry pump; 8. a hose; 9. lengthening a rod; 10. an indicator light; 11. a battery pack with an intense light source; 12. and (5) pile holes to be tested.
Detailed Description
The utility model provides a sediment thickness detection device at bottom of light sense pile, depth measurement probe 6 is the hollow tube form, the screw thread is carved with to one end, slush pump 7 is connected with hose 8, the other end of hose 8 passes through the screw thread and is connected with depth measurement probe 6, the inside one side of depth measurement probe 6 pipe wall is equipped with waterproof intense light source 5, photo sensor 3 is equipped with to the offside, waterproof intense light source 5 links to each other with intense light source group battery 11 through intense light source power supply line 4, photo sensor 3 passes through photoinduction power supply and data line 1 and links to each other with pilot lamp 10, intense light source group battery 11 respectively. The filter screen 2 is arranged at the end close to the screw thread inside the depth probe 6. A lengthened pipe 9 is arranged between the depth measurement probe 6 and the hose 8, one end of the lengthened pipe 9 is carved with a thread which is matched with the depth measurement probe 6, and the other end of the lengthened pipe 9 is carved with a thread which is consistent with the depth measurement probe 6.
The light-sensitive pile bottom sediment thickness detection device is used as follows:
(1) connecting the sounding probe and the lengthening pipe.
The depth measurement probe 6 is a hollow tube with the diameter of 50mm and the length of 15cm, one end of the hollow tube is carved with threads and is made of stainless steel, a waterproof highlight LED light source 5 is arranged on one side inside the tube wall, a light sensor 3 is arranged on the opposite side of the tube wall, and a filter screen 2 is arranged above the waterproof highlight LED light source 5 and close to the thread end to plug the hollow part. The length of the extension bar 9 is 1-2m, and according to the use condition of each party, one end of the extension bar 9 is carved with a thread which is adapted to the depth measuring probe 6, and the other end is carved with a thread which is consistent with the probe, so that the extension bar can be used in a plurality of connections, the pipe diameter of the bar is 50mm, and the wall thickness is 3-4 mm. The depth measuring probe 6 and the lengthening rod 9 are lengthened section by section, and the lengthening degree is 1-2m more than the hole depth.
(2) The top end of the extension bar 9 is connected with a slurry pump 7 by a hose 8, and the lift of the slurry pump 7 is 1.5 times larger than the designed depth of the pile.
(3) The probe strong light source battery pack 11 supplies power and is connected with the light sensor 3 and the indicator light 10, and the indicator light 10 is on to indicate that the working state of the equipment is normal.
(4) The orifice is fixed with a sleeve, the length of the sleeve is 1.0-1.5m, and the sleeve is exposed by 0.2 m. The depth probe 6 and the extension bar 9 are vertically attached to the wall of the pile hole 12 to be detected, and the depth probe 6 is slowly moved downwards. At this time, the strong light penetrates the mud in the hole, and the light sensor indicator light 10 is normally on.
(5) When the depth probe 6 reaches the sediment layer, the strong light cannot penetrate through the depth probe, and the indicator light 10 is turned off. At the moment, scales are drawn on the position of the extension rod 9 consistent with the edge of the sleeve to be an initial mark l1。
(6) And starting a mud pump 7, continuously releasing the depth measuring probe 6 and the extension rod 9 downwards, and stopping moving downwards only under the action of gravity, wherein an indicator light 10 is on. When the depth measurement probe 6 reaches the sandstone layer, the sandstone is full of the depth measurement probe 6 by the suction force, the strong light penetrates the sandstone, the indicator light 10 is turned off, the extension rod is drawn on the same position of the edge of the sleeve to be graduated, and the secondary marking is l2。
(7) The slurry pump 7 is closed, the depth measuring probe 6 and the extension bar 9 are withdrawn, and the length from the bottom of the probe to the initial mark and the length from the bottom of the probe to the secondary mark are recorded as l by using a measuring tape1,l2。
(8) The actual hole depth at this location was recorded as l using a tip rod in-situ protruding into the bottom of the hole. The thickness of the sediment at the position is l-l2. Thickness of slurry layer of l2-l1。
(9) And (5) repeating the steps (2) to (8) for the sediment thicknesses at other positions in the hole.
Examples
A pile foundation of a certain elevated highway in Fujian province is constructed by adopting a punching cast-in-place pile construction method, the strength of a pile bottom is insufficient in early-stage pile foundation detection, and cores are taken to display that the pile bottom contains sediments.
The method is adopted to detect the thickness of the pile bottom sediment after hole cleaning. A sleeve is fixed in the orifice, the length of the sleeve is 1.0-1.5m, and the sleeve is exposed for 0.2 m. The depth probe 6 is hollow and tubular, one end of the depth probe is provided with a thread, one end of the lengthening pipe 9 is provided with a thread corresponding to the depth probe 6, and the other end of the lengthening pipe is provided with a thread consistent with the depth probe 6. Firstly, a depth measuring probe 6 and an extension bar 9 are connected through threads on the site ground, the total length of the depth measuring probe 6 and the extension bar 9 is 24.15m (the designed depth of a pile hole to be measured is 23.12m), the top of the extension bar 9 is connected to a slurry pump 7 capable of working normally through a hose 8, a waterproof strong light source 5 is arranged on one side inside the pipe wall of the depth measuring probe 6, a light sensor 3 is arranged on the opposite side, and the waterproof strong light source is waterproofThe light source 5 is connected with the strong light source battery pack 11 through a strong light source power supply line 4, and the light sensor 3 is respectively connected with the indicator lamp 10 and the strong light source battery pack 11 through a light sensing power supply and data line 1. The battery pack 11 with strong light source supplies power, and the indicator light 10 works normally. The light sensor 3 is connected with the indicator light 10, and the indicator light 10 is on. The filter screen 2 is arranged at the end close to the thread inside the depth measuring probe 6, the depth measuring probe 6 and the extension rod 9 are vertically attached to the wall of the pile hole 12 to be measured, and the depth measuring probe 6 is slowly moved downwards. When the indicator light 10 is turned off, the scale mark l is drawn on the position of the extension bar 9 consistent with the edge of the sleeve1. And starting a mud pump 7, continuously releasing the depth measuring probe 6 and the extension rod 9 downwards, and stopping moving downwards only under the action of gravity. When the indicator light 10 goes out, the extension bar is marked with a scale at the same position of the edge of the sleeve as l2. Removing the mud pump hose 8, withdrawing the depth measuring probe 6 and the extension rod 9, and measuring the bottom of the depth measuring probe 6 to the initial mark l by using a tape measure1And a secondary label l2The length of (A) is 22.24m and 23.10 m. And (3) extending a 25 m-long tip steel pipe into the bottom of the hole in the in-situ position of the sounding probe, drawing scales on the steel pipe at the edge of the sleeve, and measuring the length from the bottom of the probe to the scales by using a measuring tape to be 23.32 m. The thickness of the sediment is calculated to be 23.32-223.10 ═ 0.22 m. And detecting 3 positions in the middle and on the edge of the hole wall to obtain the thicknesses of sediments respectively as follows: 0.23m, 0.21m and 0.21 m.
The construction unit strengthens and cleans the hole, and the sand and stone are cleaned out by 0.37m3The result of calculation is relatively close to the detection result of the sediment thickness.
Claims (3)
1. The utility model provides a sediment thickness detection device at bottom of light sense pile, a serial communication port, depth measurement probe (6) are the cavity tubulose, the screw thread is carved with to one end, slush pump (7) are connected with hose (8), the other end of hose (8) passes through the screw thread and is connected with depth measurement probe (6), waterproof intense light source (5) are equipped with to the inside one side of depth measurement probe (6) pipe wall, photo sensor (3) are equipped with to the offside, waterproof intense light source (5) link to each other with intense light source group battery (11) through intense light source power supply line (4), photo sensor (3) pass through light sense power supply and data line (1) respectively with pilot lamp (10), intense light source group battery (11) link to each other.
2. The device for detecting the thickness of the sediments at the bottom of the light-sensitive pile as claimed in claim 1, wherein the depth probe (6) is internally provided with a filter screen (2) at the end close to the screw thread.
3. The device for detecting the thickness of the sediments at the bottom of the light-sensitive pile as claimed in claim 1, wherein an extension pipe (9) is arranged between the depth measurement probe (6) and the hose (8), one end of the extension pipe (9) is engraved with a thread adapted to the depth measurement probe (6), and the other end is engraved with a thread consistent with the depth measurement probe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857181.0U CN212772501U (en) | 2020-05-21 | 2020-05-21 | Light-sensitive pile bottom sediment thickness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020857181.0U CN212772501U (en) | 2020-05-21 | 2020-05-21 | Light-sensitive pile bottom sediment thickness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212772501U true CN212772501U (en) | 2021-03-23 |
Family
ID=75068112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020857181.0U Active CN212772501U (en) | 2020-05-21 | 2020-05-21 | Light-sensitive pile bottom sediment thickness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212772501U (en) |
-
2020
- 2020-05-21 CN CN202020857181.0U patent/CN212772501U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206752536U (en) | A kind of cast-in-situ bored pile bottom hole sediment measurement apparatus | |
| CN210238470U (en) | Sliding type inclination measuring device with settlement observation function | |
| CN206721860U (en) | A kind of foundation ditch groundwater level monitoring device | |
| CN107102378B (en) | Utilize the method for hole pressure touching methods measurement artesian aquifer water level and head height | |
| CN101591921A (en) | Method for detecting length of reinforcing cage of concrete poured columnar pile through magnetic field intensity | |
| CN212772501U (en) | Light-sensitive pile bottom sediment thickness detection device | |
| CN106643649A (en) | Method and device for measuring deep soil settlement and pore water pressure | |
| CN212452814U (en) | Bored concrete pile pore-forming sediment thickness measurement device | |
| CN212674018U (en) | Concrete filling pile sediment measuring device | |
| CN206479166U (en) | A kind of soil body deep settlement and pore water pressure measurement device | |
| CN203271724U (en) | Multifunctional hole detector | |
| CN103276713B (en) | Environmental piezocone penetration test (CPTU) probe capable of evaluating permeability characteristic of saturated soil in site | |
| CN105780829B (en) | Cast-in-situ bored pile sediment thickness quick and precisely detection means | |
| CN115977170A (en) | Pore-forming quality detection device and detection method for cast-in-situ bored pile | |
| CN110345909A (en) | A kind of full-automatic mechanical-type intelligence laminated settlement meter | |
| CN211395779U (en) | Pile top elevation detection device for slurry retaining wall cast-in-situ bored pile | |
| CN205591265U (en) | Quick accurate detection device of drilling bored concrete pile sediment thickness | |
| CN213067371U (en) | Pool bottom mud thickness measuring device | |
| CN210031928U (en) | Prestressed concrete hollow pile length and pile extension quality detection device | |
| CN114164858A (en) | High-precision construction method for vertical column in cover-excavation type subway station | |
| CN214407266U (en) | Simple tool for measuring thickness of sediment at bottom of hole | |
| CN217150386U (en) | Device for measuring thickness of sediment at bottom of cast-in-place pile | |
| CN210946917U (en) | Mud dado bored concrete pile sediment thickness short-term test device | |
| CN205557495U (en) | Probing spade | |
| CN220704605U (en) | Digital display monitor for elevation of cast-in-place pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |