CN111140223A - Device for measuring soil nail hole angle and operation method thereof - Google Patents
Device for measuring soil nail hole angle and operation method thereof Download PDFInfo
- Publication number
- CN111140223A CN111140223A CN202010050348.7A CN202010050348A CN111140223A CN 111140223 A CN111140223 A CN 111140223A CN 202010050348 A CN202010050348 A CN 202010050348A CN 111140223 A CN111140223 A CN 111140223A
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- aluminum alloy
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- soil nail
- angle
- alloy rod
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- 239000002689 soil Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 70
- 230000003287 optical effect Effects 0.000 claims description 9
- 229910001018 Cast iron Inorganic materials 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- 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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Geology (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a device for measuring the angle of a soil nail hole and an operation method thereof, which comprises a fixing part and a measuring part, wherein an aluminum alloy rod with a tip in the fixing part is arranged in the soil body of a foundation pit side slope above an opening of the soil nail hole, a vertical aluminum alloy rod is connected with a lower measuring part, a light path generator sub-part in the measuring part can form a parallel laser light column which irradiates the bottom of the soil nail hole, an operation handle rotates and inclines the aluminum alloy rod to enable the parallel laser light column to irradiate the bottom of the hole during measurement, a reading disc is read to obtain an included angle α between the soil nail hole and the vertical direction, the design angle of the foundation pit side slope β is known, and the angle between the soil nail hole and the foundation pit side slope can be obtained by substituting gamma of 90- α + β.
Description
Technical Field
The invention relates to the field of foundation pit supporting, in particular to a device capable of measuring the angle of a soil nailing hole during soil nailing wall supporting and an operation method thereof.
Background
In the process of various engineering constructions, foundation pit support is an important project, and a soil nailing wall is one of common support modes. Drilling soil nail holes on the side slope of the foundation pit by using a Luoyang shovel or a drilling machine, grouting, laying a reinforcing mesh and spraying concrete to form a soil nail complex with the side slope soil body; the soil nailing wall supporting method can obviously improve the stability and the bearing capacity of the foundation pit side slope, thereby preventing the foundation pit landslide from collapsing and ensuring the safety of the foundation pit. During the design and construction of the soil nailing wall support, the angle between the soil nail and the side slope is related to the uplift resistance of the soil nail and influences the safety of the soil nailing wall.
During actual construction, the angle of the soil nail hole is difficult to accurately drill; the error is large because the Luoyang shovel is used for drilling holes manually; when the hole is drilled mechanically, the actual value of the soil nail hole angle has a large error from the designed value due to site slope limitation or operation reasons. The control of the current related construction technology on the angle of the soil nail hole needs to be improved; the angle of the soil nail hole is inaccurate, the pulling resistance of the soil nail after grouting is difficult to ensure, the soil nail wall cannot play the supporting role of the expected design, and great potential safety hazard is brought to the foundation pit side slope.
Disclosure of Invention
Aiming at the technical problems, the invention aims to design a device for measuring the angle of a soil nailing hole and provide an operation method, which can be used for measuring the angle of the soil nailing hole in the soil nailing wall construction process and ensuring the construction quality of the soil nailing wall.
A device for measuring the angle of a soil nail hole comprises a fixing part and a measuring part:
the fixing part is an aluminum alloy rod with a tip end and a length of 500mm, the tip end is placed in a foundation pit side slope soil body, the other end of the fixing part is connected with a vertical aluminum alloy rod with a length of 350mm, and the fixing part and the lower measuring part are connected together;
the aluminum alloy rod with the tip end and the vertical aluminum alloy rod are connected through a gear plate, so that the flexible adjustment of the angle between the aluminum alloy rod with the tip end and the vertical aluminum alloy rod can be realized;
the measuring component comprises three subcomponents, namely a light path generator, an inclined aluminum alloy rod and a reading disc;
a laser transmitter is arranged in the optical path generator sub-component and transmits a beam of laser; a beam expander is arranged in front of the laser emitter to expand the laser beam; a convex lens with the focal length f equal to 50mm is arranged at the position 50mm in front of the diffuser, the diameter of the convex lens is 40mm, the laser diffused by the diffuser is transmitted to the convex lens, and is converged by the convex lens and then is emitted in parallel to form a parallel laser light column with the diameter of 40 mm; the center of the optical path generator sub-component is in a straight line with the inclined aluminum alloy rod, so that the parallel laser light beam and the inclined aluminum alloy rod are ensured to be in a straight line;
the inclined aluminum alloy rod and the vertical aluminum alloy rod are connected through a gear plate, so that the angle adjustment of the inclined aluminum alloy rod can be realized, and the direction of the inclined aluminum alloy rod is consistent with the direction of the soil nail hole;
the reading plate part comprises an aluminum alloy disc with the diameter of 100mm and the thickness of 5mm, scales are uniformly distributed along the circumference, a cast iron block with the side length of 30mm is arranged at the lower part of the reading plate part, and the cast iron block is connected with the aluminum alloy disc through an aluminum alloy round rod with the diameter of 8mm and the length of 300 mm.
Optionally, the diameter of the convex lens is 40-60mm, the laser light scattered by the diffuser is transmitted to the convex lens, and the laser light is converged by the convex lens and then emitted in parallel to form a group of parallel laser light columns with the diameter of 40-60 mm.
A method for operating the device for measuring the angle of the soil nail hole comprises the following steps:
step one, completing the combination of optical path generator sub-components, and assembling the optical path generator sub-components with an inclined aluminum alloy rod;
secondly, placing the aluminum alloy rod with the tip end of the fixing part into the foundation pit slope soil body above the soil nail hole;
step three, adjusting the handle to enable the laser light beam to irradiate the bottom of the soil nail hole;
and step four, reading the scale value of the inclined aluminum alloy rod on the reading disc, and calculating the angle of the soil nail hole.
Compared with the prior art, the invention has the advantages and characteristics that:
(1) the angles between the soil nail hole and the vertical direction and between the soil nail hole and the foundation pit slope can be measured.
(2) The laser generator component can form a parallel laser light column to emit to the bottom of the soil nail hole, the direction of the soil nail hole is converted to the inclined aluminum alloy rod, and the angle of the inclined aluminum alloy rod on the reading disc is the angle between the soil nail hole and the vertical direction.
(3) And calculating the angle gamma between the soil nail hole and the foundation pit slope, wherein the relation gamma is 90- α + β.
(4) The operation is simple, and one worker can use the device to carry out measurement operation.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiment or the prior art will be briefly introduced below;
FIG. 1: schematic diagram of the device for measuring the angle of the soil nail hole.
FIG. 2: the connection of the aluminum alloy rod with the tip and the vertical aluminum alloy rod is schematically illustrated.
FIG. 3: the measuring part and the vertical aluminum alloy rod are connected schematically.
FIG. 4: the optical path generator is schematically shown.
FIG. 5: the reading is suggestive of the intent.
FIG. 6: and (4) angle relation graph.
In the figure: 1, a foundation pit side slope, 2 soil nail holes, 3 fixing parts, 4 optical path generators, 5 inclined aluminum alloy rods and 6 reading disks; 3-1 aluminum alloy rod with a tip, 3-2 vertical aluminum alloy rod, and 3-3 connecting gear for the aluminum alloy rod with the tip and the vertical aluminum alloy rod; 4-1 laser emitter, 4-2 astigmatic lens, 4-3 convex lens, 4-4 parallel laser beam; 6-1 handle, 6-2 aluminum alloy round rod, 6-3 cast iron block, 6-4 circumference graduated aluminum alloy disc, 6-5 inclined aluminum alloy rod and aluminum alloy disc connecting gear; 7-1 soil nail hole direction, 7-2 horizontal direction, 7-3 foundation pit slope direction and 7-4 vertical direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
The embodiment of the invention discloses a device for measuring the angle of a soil nail hole, which comprises the following components:
the device mainly comprises a fixing part and a measuring part;
the fixing part (3) is fixed to a foundation pit slope soil body above the soil nail hole; 3-1 is a pointed aluminum alloy rod with the length of 500mm and the cross section of 8mm multiplied by 40mm, 3-2 is a vertical aluminum alloy rod with the length of 350mm and the cross section of 8mm multiplied by 50mm, and the pointed aluminum alloy rod (3-1) and the vertical aluminum alloy rod (3-2) are connected through a 3-3 gear, as shown in figure 2; the included angle between the vertical aluminum alloy rod (3-2) and the aluminum alloy rod (3-1) with the tip can be adjusted through rotation of the gear (3-3), and the use requirements of the device under different conditions of foundation pit slopes and different conditions of soil bodies with the aluminum alloy rod (3-1) with the tip placed in the foundation pit slopes are met.
The optical path generator (4) is used for forming a parallel laser light column; 4-1 is a laser emitter which emits a beam of laser, a 4-2 astigmatic lens is arranged in front of the laser emitter (4-1), and the laser is emitted to a 4-3 convex lens (the diameter is 40mm, and the focal length is 50mm) at the position 50mm in front after being diffused by the astigmatic lens (4-2); laser light rays are emitted in parallel after being diverged by a diffuser (4-2) and converged by a convex lens (4-3) to form a 4-4 parallel laser light column (the diameter is 40 mm); the laser emitter (4-1) is fixed in a groove arranged at the right lower part of the 5-inclined aluminum alloy rod, and the center of the laser emitter is ensured to be on the same straight line.
The diameters of the inclined aluminum alloy rod (5) and the vertical aluminum alloy rod (3-2) are connected through a gear, as shown in figure 3, the angle adjustment between the inclined aluminum alloy rod (5) and the soil nail hole (2) is realized, and the parallel laser light beams (4-4) are ensured to be directly emitted to the bottom of the soil nail hole (2), so that the observation of an operator is facilitated; the length of the inclined aluminum alloy rod (5) is 600mm, and the cross section of the inclined aluminum alloy rod is 8mm multiplied by 50 mm.
The reading disc (6) sub-component can read the angular relationship between the inclined aluminum alloy rod (5) and the aluminum alloy round rod (6-2), namely the size of an included angle α between the soil nail hole and the vertical direction;
as shown in fig. 6, the angle γ between the soil nail hole and the foundation pit slope is:
γ＝90°-α+β (1)
β -design angle of known foundation pit slope
α -reading for reading disc
The reading disc (6) sub-component comprises a 6-1 operating handle, a 6-2 aluminum alloy round bar, a 6-3 cast iron block, a 6-4 aluminum alloy round bar, a 6-5 scale and a 6-5 scale, wherein the 6-1 operating handle is welded on an inclined aluminum alloy bar (5), the parallel laser light beam (4-4) can be adjusted by hand during measurement, the parallel laser light beam (4-4) can shoot to the bottom of a soil nail hole, the 6-2 aluminum alloy round bar is 8mm in diameter and 300mm in length, the lower end of the aluminum alloy round bar is connected with the 6-3 cast iron block, the scales are uniformly distributed in the circumferential direction, the 0 scale is arranged at the lowest part of the aluminum alloy round bar, the scales are increased along the counterclockwise direction, the aluminum alloy round bar (6-2) is connected with the aluminum alloy round bar (6-4) in the normal direction of a welded joint, the position of a zero scale;
the operation method of the device mainly comprises the following steps:
step one, selecting a convex lens (4-3) with the diameter of 40mm and the focal length f of 50mm, wherein the distance between the convex lens (4-3) and an astigmatic lens is equal to the focal length of the convex lens (4-3), and a parallel laser light column with the diameter of 40mm can be formed; installing a light path generator (4) in a groove below the inclined aluminum alloy rod (5);
secondly, placing the aluminum alloy rod (3-1) with the tip into a foundation pit slope soil body, and fixing the device;
turning on a laser emitter switch and an operating handle (6-1) to enable an inclined aluminum alloy rod (5) to rotate, and irradiating the parallel laser light beams (4-4) to the soil nail hole directly to the bottom of the soil nail hole; in the rotating process, the reading disc (6) keeps the scale of 0 on a vertical straight line under the action of the gravity of the cast iron blocks (6-3);
and step four, reading out the angle of the inclined aluminum alloy rod on the reading disc, namely an included angle α between the soil nail hole and the vertical direction, and calculating the angle gamma between the soil nail hole and the foundation pit side slope by substituting formula (1) gamma of 90- α + β.
While the invention has been described with reference to specific embodiments, it is not intended to limit the scope of the invention; it should be understood by those skilled in the art that various changes, substitutions and alterations can be easily made herein without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a can be used to measure soil nail hole angle's device which characterized in that: comprises a fixed component and a measuring component;
the fixing part comprises an aluminum alloy rod with a tip, and can be placed into a foundation pit side slope soil body to fix the device;
the measuring component comprises three subcomponents, namely a light path generator, an inclined aluminum alloy rod and a reading disc.
2. A device for measuring the angle of a soil nail hole according to claim 1, wherein: the aluminum alloy rod with the tip in the fixed part is connected with the vertical aluminum alloy rod through a gear, so that the lower measuring part can be flexibly adjusted.
3. A device for measuring the angle of a soil nail hole according to claim 1, wherein: the optical path generator sub-assembly can form a parallel laser beam to irradiate the bottom of the soil nail hole.
4. A device for measuring the angle of a soil nail hole according to claim 1, wherein: the inclined aluminum alloy rod and the vertical aluminum alloy rod are connected through a gear and can rotate when operated through a handle, and therefore the direction of the parallel laser light beams is adjusted.
5. The device for measuring the angle of the soil nail hole according to claim 1, wherein the lower portion of the reading disc is connected with a cast iron block through an aluminum alloy round rod in a welding mode, the relative invariability of the 0-scale position can be guaranteed, the angle α between the soil nail hole and the vertical direction can be obtained by reading the reading of the reading disc, the design angle β of the foundation pit slope is known, and the angle between the soil nail hole and the foundation pit slope can be obtained by substituting gamma-90- α + β.
6. The optical path generator sub-assembly of claim 3, wherein: laser emitted by the laser emitter is emitted to the convex lens (the diameter is 40mm, the focal length is 50mm) through the light diffuser, the convex lens is arranged at the position 50mm in front of the light diffuser, namely the focal length of the convex lens is equal, and the laser is emitted from the convex lens in parallel to form a parallel laser light column to irradiate the bottom of the soil nail hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050348.7A CN111140223A (en) | 2020-01-17 | 2020-01-17 | Device for measuring soil nail hole angle and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050348.7A CN111140223A (en) | 2020-01-17 | 2020-01-17 | Device for measuring soil nail hole angle and operation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111140223A true CN111140223A (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010050348.7A Pending CN111140223A (en) | 2020-01-17 | 2020-01-17 | Device for measuring soil nail hole angle and operation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727446A (en) * | 2020-12-31 | 2021-04-30 | 煤科集团沈阳研究院有限公司 | Underground coal mine drilling and paying-off method and device and underground coal mine drilling method |
| CN112729149A (en) * | 2020-12-25 | 2021-04-30 | 河南仟策智能科技有限公司 | Intelligent soil nail inclination and depth measuring device |
-
2020
- 2020-01-17 CN CN202010050348.7A patent/CN111140223A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729149A (en) * | 2020-12-25 | 2021-04-30 | 河南仟策智能科技有限公司 | Intelligent soil nail inclination and depth measuring device |
| CN112727446A (en) * | 2020-12-31 | 2021-04-30 | 煤科集团沈阳研究院有限公司 | Underground coal mine drilling and paying-off method and device and underground coal mine drilling method |
| CN112727446B (en) * | 2020-12-31 | 2024-02-27 | 中煤科工集团沈阳研究院有限公司 | Underground coal mine drilling and paying-off and drilling verification method and device |
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