CN213204239U - Foundation pit bottom resilience amount detection device - Google Patents
Foundation pit bottom resilience amount detection device Download PDFInfo
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- CN213204239U CN213204239U CN202022039876.0U CN202022039876U CN213204239U CN 213204239 U CN213204239 U CN 213204239U CN 202022039876 U CN202022039876 U CN 202022039876U CN 213204239 U CN213204239 U CN 213204239U
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- foundation pit
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- pit bottom
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- 238000001514 detection method Methods 0.000 title claims abstract description 64
- 238000005553 drilling Methods 0.000 claims abstract description 26
- 238000009412 basement excavation Methods 0.000 claims abstract description 16
- 238000013500 data storage Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000003550 marker Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a foundation pit bottom resilience amount detection device, which comprises a resilience detection mark arranged in a drill hole and a detection module arranged in the resilience detection mark; the resilience detection mark comprises a mark body and a drill rod connecting part, wherein the mark body comprises a connecting disc, a sleeve arranged at the top of the connecting disc, a mark body arranged at the bottom of the connecting disc and a cover plate arranged in the sleeve and in sliding fit with the sleeve; the detection module is arranged in the mark body and is used for detecting the laser ranging sensor of the rebound quantity of the pit bottom of the foundation pit. The utility model has simple structure and reasonable design, and the mark body is connected with the drill rod through the drill rod connecting part, so that the resilience detection mark is conveniently embedded into the bottom of the drilling hole; the rebound quantity of the pit bottom of the foundation pit is detected through the laser ranging sensor, the detection precision is high, layered detection of the rebound quantity of the pit bottom of the foundation pit during foundation pit excavation can be achieved, the practicability is high, and the popularization and the use are convenient.
Description
Technical Field
The utility model belongs to the technical field of the building engineering reconnaissance, concretely relates to resilience value detection device at bottom of foundation ditch hole.
Background
The rebound amount of the foundation pit is the rebound and bulge of the bottom of the foundation pit caused by removing the self weight of the foundation pit after the foundation pit is excavated, and the rebound and bulge amount also becomes the bulge amount of the bottom of the foundation pit. The detection of the size and the distribution of the resilience of each soil layer under the foundation pit has very important significance for guiding construction, optimizing design and the like. At present, the resilience of the foundation pit is generally carried out by arranging and embedding a resilience measuring mark, the resilience measuring mark is embedded 20-30cm below the bottom surface of the foundation pit, and the resilience measuring mark can be embedded by adopting a drilling method or a well exploration method according to the excavation depth and the condition of stratum soil. Depending on the embedding and detection method, auxiliary rod press-in, drill rod feed-in or direct embedded markers may be used. However, the embedding and detection of the rebound mark are troublesome, and the layered detection cannot be realized.
Consequently, now lack a simple structure, reasonable in design's foundation ditch hole end resilience volume detection device, it buries the difficulty to solve current foundation ditch hole end resilience volume and detect the time resilience mark, can not detect the problem of foundation ditch hole end resilience volume by layer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the device for detecting the resilience amount of the pit bottom of the foundation pit is provided aiming at the defects in the prior art, has simple structure and reasonable design, and is convenient for embedding the resilience detection mark into the bottom of the drilling hole by connecting the mark body with the drill rod through the drill rod connecting part; the rebound quantity of the pit bottom of the foundation pit is detected through the laser ranging sensor, the detection precision is high, layered detection of the rebound quantity of the pit bottom of the foundation pit during foundation pit excavation can be achieved, the practicability is high, and the popularization and the use are convenient.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a foundation ditch pit bottom resilience volume detection device, it is equipped with the drilling that passes the foundation ditch pit bottom to open in advance on the excavation region of foundation ditch, its characterized in that: the device comprises a rebound detection mark arranged in a drill hole and a detection module arranged in the rebound detection mark;
the springback detection mark comprises a mark body and a drill rod connecting part arranged on the top of the mark body,
the marker body comprises a connecting disc, a sleeve arranged at the top of the connecting disc, a marker body arranged at the bottom of the connecting disc and a cover plate arranged in the sleeve and in sliding fit with the sleeve, the sleeve and the marker body are both arranged along the height direction of a drilled hole, and the lower surface of the cover plate and the horizontal plane where the bottom of a foundation pit is located are located on the same plane;
the detection module comprises a laser ranging sensor which is arranged in the mark body and matched with the cover plate to detect the rebound quantity of the pit bottom of the foundation pit.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: the detection module further comprises an electronic circuit board arranged in the mark body, a microcontroller, a wireless transmission module and a data storage module are integrated on the electronic circuit board, the wireless transmission module and the data storage module are connected with the microcontroller, and the output end of the laser ranging sensor is connected with the input end of the microcontroller.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: the mark body further comprises a header arranged at the center of the top of the connecting disc, the header is hemispherical, and the spherical surface of the header faces the cover plate.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: the drill rod connecting part comprises a connecting sleeve which is arranged at the top of the connecting disc and used for connecting the sign body and the drill rod, an internal thread matched with an external thread of the drill rod is arranged on the inner side of the top of the connecting sleeve, and a partition plate is arranged in the middle of the connecting sleeve along the radial direction of the connecting sleeve.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: and through holes for laser beams of the laser ranging sensor to pass through are formed in the connecting disc, the header and the partition plate.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: the cover plate is provided with two bulges which are symmetrically arranged along the center line of the cover plate, the sleeve is internally provided with a groove matched with the bulges, and the groove is arranged along the height direction of the sleeve.
Foretell foundation ditch hole bottom resilience volume detection device, its characterized in that: the bottom of the mark body is a conical part.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses simple structure, through set up drilling rod adapting unit between sign body and drilling rod, and drilling rod adapting unit and drilling rod threaded connection install this detection device in the hole bottom preset position of drilling, simple to operate through the drilling rod.
2. The utility model discloses be provided with apron and laser rangefinder sensor, the lower surface of apron flushes with the horizontal plane at the bottom of the foundation ditch hole, detects the distance between apron and the laser rangefinder sensor through the laser rangefinder sensor and detects the distance between the foundation ditch hole bottom and the laser rangefinder sensor, and then detects the resilience volume at the bottom of the foundation ditch hole, and it is high to detect the precision, and layered detection and real-time detection when can realizing the foundation ditch excavation.
3. The utility model discloses be provided with the sleeve pipe, the apron is installed and is reciprocated along sheathed tube direction of height at the intraductal and apron of cover, adjusts the mounting height of apron at the intraductal cover according to the excavation depth of foundation ditch, realizes the detection of foundation ditch hole end resilience volume, and avoids influencing laser range finding sensor's normal work because the soil around resilience detection mark collapses when the foundation ditch excavation, improves this detection device's reliability.
In summary, the utility model has simple structure and reasonable design, and the mark body is connected with the drill rod through the drill rod connecting part, so that the springback detection mark is conveniently embedded into the bottom of the drilling hole; the rebound quantity of the pit bottom of the foundation pit is detected through the laser ranging sensor, the detection precision is high, layered detection of the rebound quantity of the pit bottom of the foundation pit during foundation pit excavation can be achieved, the practicability is high, and the popularization and the use are convenient.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the connection relationship between the cover plate and the sleeve of the present invention.
Fig. 3 is a schematic circuit block diagram of the detection module of the present invention.
Description of reference numerals:
1, drilling; 2-connecting the disc; 3, sleeving a sleeve;
4, marking the body; 5, covering a plate; 6-laser ranging sensor;
7-a microcontroller; 8, a wireless transmission module; 9-a data storage module;
10-header; 11-connecting the sleeve; 12-a partition plate;
13, foundation pit; 14-a bump; 15-a groove;
16-formation.
Detailed Description
As shown in fig. 1, the present invention comprises a rebound detection flag disposed in a borehole 1 and a detection module disposed in the rebound detection flag;
the springback detection mark comprises a mark body and a drill rod connecting part arranged on the top of the mark body,
the mark body comprises a connecting disc 2, a sleeve 3 arranged at the top of the connecting disc 2, a mark body 4 arranged at the bottom of the connecting disc 2 and a cover plate 5 arranged in the sleeve 3 and in sliding fit with the sleeve 3, wherein the sleeve 3 and the mark body 4 are both arranged along the height direction of the drill hole 1, and the lower surface of the cover plate 5 and the horizontal plane where the pit bottom of the foundation pit is located are located on the same plane;
the detection module comprises a laser ranging sensor 6 which is arranged in the mark body 4 and matched with the cover plate 5 to detect the rebound quantity of the pit bottom of the foundation pit.
In this embodiment, it should be noted that the bottom of the foundation pit refers to a bottom surface formed when different heights are excavated in the excavation process of the foundation pit 13; the pit bottom of foundation pit 13 takes place to kick-back when foundation pit 13 excavates, treats that the pit bottom of foundation pit 13 is stable after, and the staff adjusts apron 5 and makes the lower surface of apron 5 and the horizontal plane at the pit bottom place of foundation pit 13 be located the coplanar, carries out the rebound volume detection at the pit bottom of foundation pit 13.
In this embodiment, the hole bottom of the drilled hole 1 is lower than the bottom of the foundation pit 13 expected to be excavated, and the distance between the hole bottom of the drilled hole 1 and the bottom of the foundation pit 13 designed to be excavated is 20cm to 30 cm.
In this embodiment, during the in-service use, the material of marking head 10, connecting disc 2 and mark body 4 is the steel material, and the steel material has certain intensity and hardness, is convenient for mark the body and buries underground in the hole bottom of drilling 1, just mark between head 10 and the connecting disc 2, be the welding between connecting disc 2 and the mark body 4.
In this embodiment, through set up drilling rod adapting unit between sign body and drilling rod, and be provided with on the drilling rod adapting unit with the external screw thread complex on the drilling rod internal thread, be convenient for sign body and drilling rod be connected.
In this embodiment, in actual use, the laser distance measuring sensor 6 is preferably an SLDS-a30P laser distance measuring sensor, and has a wide measuring range, high measuring accuracy and convenient installation.
In this embodiment, during the in-service use, apron 5 is white apron, reflects the laser beam that laser range sensor 6 launches through setting up apron 5, and the reflectivity of white apron is higher, has improved 6 measurement accuracy of laser range sensor.
In this embodiment, the sleeve 3 is made of transparent PVC material, the sleeve 3 is arranged along the height direction of the borehole 1, the bottom end of the sleeve 3 is bonded to the top of the connecting disc 2, and the top end of the sleeve 3 is higher than the top surface of the foundation pit 13; the normal work of the laser ranging sensor 6 is influenced by the fact that the excavated soil falls onto the mark body when the foundation pit 13 is excavated through the sleeve 3.
As shown in fig. 3, in this embodiment, the detection module further includes an electronic circuit board disposed in the sign body 4, the electronic circuit board is integrated with a microcontroller 7, and a wireless transmission module 8 and a data storage module 9 connected to the microcontroller 7, and an output end of the laser distance measuring sensor 6 is connected to an input end of the microcontroller 7.
In the present embodiment, in practical use, the microcontroller 7 is preferably an STM32F103VET6 microcontroller.
In this embodiment, the wireless transmission module 8 is preferably an ATK-ESP8266WIFI module, and the microcontroller 7 transmits data measured by the laser ranging sensor 6 to a mobile phone carried by a worker through the wireless transmission module 8, so that the worker can conveniently check the data at any time.
In this embodiment, the data storage module 9 is preferably an AT24C04 storage module, and the purpose of the data storage module 9 is to: all data measured by the laser ranging sensor 6 are stored, and data can be played back to the data storage module 9 when needed by a worker.
In this embodiment, the sign body further includes a header 10 disposed at a central position of the top of the connecting disc 2, the header 10 is a hemisphere, and a spherical surface of the header 10 faces the cover plate 5.
In this embodiment, during the in-service use, the bottom surface beading of header 10 can increase the area of contact of header 10 and connecting disc 2 at the top of connecting disc 2, and then increase the joint strength between header 10 and the connecting disc 2.
In this embodiment, the drill rod connecting part includes a connecting sleeve 11 disposed on the top of the connecting disc 2 and used for connecting the sign body and the drill rod, an internal thread matched with the external thread of the drill rod is disposed on the inner side of the top of the connecting sleeve 11, and a partition plate 12 is disposed in the middle of the connecting sleeve 11 along the radial direction of the connecting sleeve 11.
In this embodiment, the drill rod is separated from the header 10 by providing the separation plate 12 in the middle of the coupling sleeve 11 in the radial direction of the coupling sleeve 11, so that the header 10 is protected from being damaged by the drill rod.
As shown in fig. 2, in the present embodiment, the connecting disc 2, the header 10 and the separating plate 12 are all provided with through holes for the laser beam of the laser distance measuring sensor 6 to pass through.
In this embodiment, the cover plate 5 is provided with two protrusions 14, the two protrusions 14 are symmetrically arranged along the center line of the cover plate 5, the sleeve 3 is internally provided with a groove 15 matched with the protrusions 14, and the groove 15 is arranged along the height direction of the sleeve 3.
In this embodiment, during actual use, the worker pushes the cover plate 5 to move up and down along the height direction of the casing 3, so that the lower surface of the cover plate 5 and the horizontal plane where the bottom of the excavated foundation pit 13 is located are located on the same plane.
In this embodiment, the bottom of the mark body 4 is a conical portion.
In this embodiment, in actual use, the conical bottom of the body 4 makes it easier to press the body 4 into the ground layer 16.
The utility model discloses during the specific use, record H with the expected excavation depth of foundation ditch 13, when carrying out foundation ditch 13 excavation, at first, with connecting sleeve 11 and drilling rod threaded connection, the operation drilling rod makes the drilling rod install this detection device in the hole bottom preset position of drilling 1, and separate drilling rod and connecting sleeve 11, the horizontal plane that the lower surface of operation apron 5 and upper surface of foundation ditch 13 were located when foundation ditch 13 did not excavate is on the coplanar, measure the distance between apron 5 and laser range sensor 6 and record H 'this moment through laser range sensor 6, and then obtain the distance between the bottom of pit 13 when laser range sensor 6 and foundation ditch 13 excavation depth were H and record d, and d is H' -H;
secondly, the foundation pit 13 is excavated and the excavated height of the foundation pit 13 is recorded as H1And the residual excavation depth of the foundation pit 13 is H2And H is2＝H-H1When the foundation pit 13 is excavated H1After the height is rebounded and stabilized, H is excavated by operating the lower surface of the cover plate 5 and the foundation pit 131The horizontal plane of the bottom of the foundation pit 13 is positioned on the same plane after the height, and then the distance between the cover plate 5 and the laser ranging sensor 6 at the moment is measured by the laser ranging sensor 6 and is recorded as H2'，H2' excavating H for foundation pit 131The distance between the laser ranging sensor 6 and the bottom of the foundation pit 13 after the height and the foundation pit 13 rebound, and if the foundation pit 13 is excavated H1The distance between the laser ranging sensor 6 and the bottom of the foundation pit 13 is H when the height is not the same as the height of the foundation pit 13 and the rebound does not occur2+ d, excavating H in foundation pit 131At the height, the rebound amount of the bottom of the foundation pit 13 is H2+d-H2'；
And finally, in the subsequent excavation process of the foundation pit 13, the steps are repeated to realize the layered detection of the pit bottom resilience of the foundation pit 13 corresponding to excavation of different heights of the foundation pit.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. The utility model provides a foundation ditch pit bottom resilience volume detection device, it is equipped with drilling (1) that pass the foundation ditch pit bottom to advance on the excavation region of foundation ditch, its characterized in that: the drilling tool comprises a rebound detection mark arranged in a drilling hole (1) and a detection module arranged in the rebound detection mark;
the springback detection mark comprises a mark body and a drill rod connecting part arranged on the top of the mark body,
the mark body comprises a connecting disc (2), a sleeve (3) arranged at the top of the connecting disc (2), a mark body (4) arranged at the bottom of the connecting disc (2) and a cover plate (5) arranged in the sleeve (3) and in sliding fit with the sleeve (3), wherein the sleeve (3) and the mark body (4) are both arranged along the height direction of the drill hole (1), and the lower surface of the cover plate (5) and the horizontal plane where the pit bottom of the foundation pit is located are located on the same plane;
the detection module comprises a laser ranging sensor (6) which is arranged in the mark body (4) and matched with the cover plate (5) to detect the rebound quantity of the pit bottom of the foundation pit.
2. The foundation pit bottom resilience amount detection device according to claim 1, wherein: the detection module is characterized by further comprising an electronic circuit board arranged in the mark body (4), a microcontroller (7) is integrated on the electronic circuit board, a wireless transmission module (8) and a data storage module (9) are connected with the microcontroller (7), and the output end of the laser ranging sensor (6) is connected with the input end of the microcontroller (7).
3. The foundation pit bottom resilience amount detection device according to claim 1, wherein: the mark body further comprises a header (10) arranged at the center of the top of the connecting disc (2), the header (10) is hemispherical, and the spherical surface of the header (10) faces the cover plate (5).
4. The foundation pit bottom resilience amount detection device according to claim 3, wherein: the drill rod connecting part comprises a connecting sleeve (11) which is arranged at the top of the connecting disc (2) and used for connecting the sign body and the drill rod, wherein an internal thread matched with an external thread of the drill rod is arranged on the inner side of the top of the connecting sleeve (11), and a partition plate (12) is arranged in the middle of the connecting sleeve (11) along the radial direction of the connecting sleeve (11).
5. The foundation pit bottom resilience amount detection device according to claim 4, wherein: and through holes for laser beams of the laser ranging sensor (6) to pass through are formed in the connecting disc (2), the header (10) and the partition plate (12).
6. The foundation pit bottom resilience amount detection device according to claim 1, wherein: the cover plate (5) is provided with two protrusions (14), the two protrusions (14) are symmetrically arranged along the center line of the cover plate (5), grooves (15) matched with the protrusions (14) are formed in the sleeve (3), and the grooves (15) are arranged in the height direction of the sleeve (3).
7. The foundation pit bottom resilience amount detection device according to claim 1, wherein: the bottom of the mark body (4) is a conical part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039876.0U CN213204239U (en) | 2020-09-17 | 2020-09-17 | Foundation pit bottom resilience amount detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022039876.0U CN213204239U (en) | 2020-09-17 | 2020-09-17 | Foundation pit bottom resilience amount detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213204239U true CN213204239U (en) | 2021-05-14 |
Family
ID=75821055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022039876.0U Expired - Fee Related CN213204239U (en) | 2020-09-17 | 2020-09-17 | Foundation pit bottom resilience amount detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213204239U (en) |
-
2020
- 2020-09-17 CN CN202022039876.0U patent/CN213204239U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210514 |