CN115627763A - Underground continuous wall inclination measuring device - Google Patents
Underground continuous wall inclination measuring device Download PDFInfo
- Publication number
- CN115627763A CN115627763A CN202211382435.8A CN202211382435A CN115627763A CN 115627763 A CN115627763 A CN 115627763A CN 202211382435 A CN202211382435 A CN 202211382435A CN 115627763 A CN115627763 A CN 115627763A
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- China
- Prior art keywords
- measuring device
- inclination
- steel plate
- inclination angle
- continuous wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
Abstract
The invention discloses an underground continuous wall inclination measuring device which comprises a first moving mechanism and an inclination angle sensor arranged on the first moving mechanism, wherein the inclination angle sensor is parallel to a first steel plate and is separated from the first steel plate by a preset distance, and the first moving mechanism is suitable for moving along the height direction of the first steel plate, so that the inclination angle sensor measures the inclination angle theta of any position of the first steel plate in the height direction. According to the invention, after the reinforcement cage is placed down and before concrete is poured, the inclination angle theta at any height position is measured in real time by arranging the inclination angle sensor on the first steel plate which is rigidly welded and parallel to the reinforcement cage, once the inclination angle theta is found to exceed the allowable range, the position of the reinforcement cage can be adjusted until the measured inclination angle theta meets the requirement, and then concrete is poured, so that the verticality of the underground continuous wall can be ensured.
Description
Technical Field
The invention belongs to the field of building construction equipment, and particularly relates to an underground continuous wall inclination measuring device which is used for measuring the verticality of an underground continuous wall in a steel reinforcement cage lowering and placing stage in construction engineering.
Background
In the construction process of the underground continuous wall, after grooving is finished, the steel reinforcement cage is influenced by the perpendicularity of the groove wall, the hanging angle, the mechanical deviation and the like in the lowering process, and the deviation in two directions inside and outside a plane is easily generated, so that the construction quality and the enclosure performance of the underground continuous wall are influenced. Therefore, it is necessary to detect the verticality of the underground diaphragm wall.
In the existing underground continuous wall construction process flow, the verticality detection of the underground continuous wall mainly adopts an ultrasonic method. Aiming at the inner verticality of the plane of the steel reinforcement cage, the expansion digging width of the underground continuous wall towards the two sides in the plane is limited, and the phenomenon of groove wall collapse may occur at the end part position. After the underground continuous wall is poured, in order to avoid the situation that the ultrasonic probe cannot be pulled out because the ultrasonic probe is buried, the ultrasonic probe is generally placed downwards when adjacent sections are excavated, and then the verticality change condition of the side surface of the poured underground continuous wall along the depth direction is obtained according to the reflection of the ultrasonic wave.
The biggest problem is that the current ultrasonic detection method belongs to post-detection, when the verticality deviation is found to be overlarge, the concrete of the underground continuous wall is poured, the verticality of the reinforcement cage can not be adjusted independently according to the verticality detection result, only the poured concrete is demolished destructively, and the rework cost is huge; if not doing over again, there is great quality safety hidden danger.
Disclosure of Invention
The invention aims to overcome the defects in the background technology, complete the verticality measurement of the reinforcement cage in the expanded excavation range with limited width, so as to adjust the verticality in the plane of the reinforcement cage before concrete is poured after the reinforcement cage is placed down according to the measurement result, improve the positioning precision of the reinforcement cage, realize the verticality control of the underground continuous wall in the construction process, and further improve the construction quality and the enclosure performance of the underground continuous wall.
In order to achieve the above object, the present invention provides an underground continuous wall inclination measuring device, wherein a cross steel plate is rigidly welded to one side of a reinforcement cage before the underground continuous wall is poured, a first steel plate of the cross steel plate is attached to a side surface of the reinforcement cage in parallel and has the same height as the reinforcement cage, a second steel plate is perpendicular to the first steel plate, the underground continuous wall inclination measuring device comprises a first moving mechanism and an inclination sensor mounted on the first moving mechanism, the inclination sensor is parallel to the first steel plate and has a preset distance, and the first moving mechanism is adapted to move along a height direction of the first steel plate, so that the inclination sensor measures an inclination angle θ at any position of the first steel plate in the height direction.
Further, the first moving mechanism includes a first magnet and a first roller assembly mounted on the first magnet and adapted to move up and down along the first steel plate.
Further, the first roller assembly comprises at least one pair of rollers which are arranged in parallel and symmetrically.
Further, the first roller assembly comprises two pairs of rollers which are arranged in parallel and symmetrically.
The device further comprises a lifting device, wherein the lifting device is fixedly connected with the inclination angle sensor and is suitable for lifting or sinking the inclination angle sensor upwards.
Further, the lifting and releasing device comprises a cable and automatic cable scaling equipment, and the automatic cable scaling equipment is suitable for scaling the cable at a constant speed.
Further, the cable is connected to the tilt sensor through a first limit support rod.
Furthermore, the steel plate positioning device further comprises a second moving mechanism, wherein the second moving mechanism comprises a second magnet and a second roller assembly, the second magnet is connected and fixed with the first limiting support rod through a second limiting support rod, and the second roller assembly is installed on the second magnet and is suitable for moving up and down along the second steel plate.
Further, at least one of the first magnet and the second magnet is an electromagnet, and the voltage of the electromagnet is adjustable.
The height measuring device is used for detecting the height h of the inclination angle sensor in real time and obtaining an inclination angle-depth change curve theta-h by combining the inclination angle theta synchronously measured by the inclination angle sensor.
Further, the height measuring device comprises a water pressure gauge, the water pressure gauge is used for measuring pore water pressure p, and an inclination angle-depth change curve theta-h is obtained by utilizing the relation p = rho gh of mud density rho, gravity acceleration g and water pressure.
Compared with the prior art, the invention has the beneficial effects that:
the verticality measurement of the reinforcement cage is completed within the expanding excavation range with the limited width, so that the verticality in the plane of the reinforcement cage is adjusted before concrete is poured after the reinforcement cage is placed according to the measurement result, the positioning precision of the reinforcement cage is improved, the verticality control of the underground continuous wall in the construction process is realized, and the construction quality and the containment performance of the underground continuous wall are improved.
Drawings
FIG. 1 is a plan view of one embodiment of the present invention;
FIG. 2 is an elevational view of one embodiment of the present invention;
fig. 3 is a state diagram of the use of one embodiment of the present invention.
In the figure, a tilt sensor 1; a first magnet 2; a first roller 3; a second magnet 4; a second roller 5; a cable 6; a first limit support rod 7; a second limit support rod 8; a first steel plate 9; a second steel plate 10; a reinforcement cage 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
As shown in fig. 1 to 3, in an embodiment of the inclination measuring device for an underground continuous wall according to the present invention, a cross steel plate is rigidly welded to one side of a reinforcement cage 11 before the underground continuous wall is poured, a first steel plate 9 of the cross steel plate is attached to a side surface of the reinforcement cage 11 in parallel and has the same height as the reinforcement cage 11, and a second steel plate 10 is perpendicular to the first steel plate 9, and includes a first moving mechanism and an inclination sensor 1 mounted thereon, where the inclination sensor 1 is parallel to the first steel plate 9 and spaced from the first steel plate 9 by a predetermined distance, and the first moving mechanism is adapted to move along a height direction of the first steel plate 9, so that the inclination sensor 1 measures an inclination θ of any position of the first steel plate 9 in the height direction.
In the embodiment, after the reinforcement cage 11 is lowered and before concrete is poured, the inclination angle theta at any height position is measured in real time by arranging the inclination angle sensor 1 on the first steel plate 9 which is rigidly welded and parallel to the reinforcement cage 11, once the inclination angle theta is found to exceed the allowable range, the position of the reinforcement cage 11 can be adjusted until the measured inclination angle theta meets the requirement, and then concrete is poured, so that the perpendicularity of the underground continuous wall can be ensured.
In one embodiment, the first moving mechanism includes a first magnet 2 and a first roller assembly 3, and the first roller assembly 3 is mounted on the first magnet 2 and adapted to move up and down along the first steel plate 9. In this embodiment, although the first magnet 2 has a strong magnetic attraction with the first steel plate 9 across the first roller assembly 3, the first roller assembly 3 can be attached to the surface of the first steel plate 9 by the magnetic attraction, so that the first magnet can be stably moved up and down along the first steel plate 9, and the tilt angle θ where the first magnet is moved can be measured, so that the whole height direction of the first steel plate 9 can be conveniently covered, that is, the full height range of the reinforcement cage 11 is covered, the tilt angle at the bottom position of the reinforcement cage 11 can be measured, and the tilt angle at any position, such as the middle position and the top position, can be finally evaluated according to the multi-position measurement result to determine whether the tilt angle θ of the reinforcement cage 11 meets the design requirements.
In one embodiment, the first roller assembly includes at least one pair of first rollers 3 arranged in parallel and symmetrically. In this embodiment, as shown in fig. 1, a pair (i.e., two) of the first rollers 3 are arranged in parallel and symmetrically at intervals, so that the adhesion force on the first steel plate 9 can be ensured, and the smooth sliding can be ensured.
In one embodiment, the first roller assembly comprises two pairs of first rollers 3 arranged in parallel and symmetrically. In the embodiment, a pair of first rollers 3 is added on the basis of the previous embodiment, and the rollers are arranged in two rows, so that the adhesive force and the sliding stability can be further improved.
In one embodiment, the device further comprises a lifting device, wherein the lifting device is fixedly connected with the tilt sensor 1 and is suitable for lifting or sinking the tilt sensor 1 upwards or downwards. In this embodiment, the lifting and placing device is used to move the first moving mechanism up and down along the first steel plate 9, so that the tilt sensor 1 mounted on the first moving mechanism moves up and down, and the tilt at any position can be conveniently measured. The lifting device can adopt automatic lifting equipment or manual lifting equipment. The lifting speed (i.e. the moving speed of the tilt sensor 1) is preferably constant, so that the accurate position of the tilt sensor 1 at a certain moment in the moving process can be accurately obtained according to the lifting speed, that is, the corresponding relationship between the position and the tilt value can be obtained.
In one embodiment, as shown in fig. 2, the lifting and releasing device comprises a cable 6 and a cable automatic scaling device, wherein the cable automatic scaling device is suitable for scaling the cable 6 at a constant speed. In this embodiment, the lifting and placing device is an automatic device, such as a winch and the like, and can rotate in two directions, so as to realize automatic release or recovery of the cable 6, and then the tilt angle sensor 1 can automatically sink or move upwards, thereby improving the measurement automation degree and the use convenience.
In one embodiment, as shown in fig. 1 and 2, the cable 6 is connected to the tilt sensor 1 through a first limit support bar 7. In the embodiment, on one hand, the length of the first limit support rod 7 defines the distance between the cable 6 and the tilt sensor 1, that is, the position of the cable 6 in the notch, so as to determine the arrangement position of the lifting device outside the notch; on the other hand, the first limiting support rod 7 provides a stress support point for the cable 6, and is more convenient, safe and reliable compared with the direct connection to the tilt angle sensor 1.
In one embodiment, as shown in fig. 1, the device further comprises a second moving mechanism, the second moving mechanism comprises a second magnet 4 and a second roller assembly 5, the second magnet 4 is fixedly connected to the first limit support rod 7 through a second limit support rod 8, and the second roller assembly 5 is mounted on the second magnet 4 and is adapted to move up and down along the second steel plate 10. In this embodiment, a cross steel plate formed by combining the first steel plate 9 and the second steel plate 10 which are perpendicular to each other is fully utilized, a perpendicular relation is also formed between the second moving mechanism and the first moving mechanism, the second moving mechanism and the first moving mechanism are connected into a whole through the second limit support rod 8, and the second moving mechanism and the first moving mechanism are supported by each other, so that the sliding is more stable.
In one embodiment, at least one of the first magnet 2 and the second magnet 4 is an electromagnet, the voltage of which is adjustable. In this embodiment, preferred first magnet 2 and second magnet 4 are the electro-magnet, can realize magnetic attraction size adjustment through adjustment voltage like this to the size of adhesive force is conveniently adjusted, improves application scope.
In one embodiment, the system further comprises a height measuring device, wherein the height measuring device is used for detecting the height h of the tilt sensor 1 in real time, and a tilt angle-depth change curve theta-h is obtained by combining the tilt angle theta synchronously measured by the tilt sensor 1. In this embodiment, the height measuring device may be any height measuring instrument, and may measure the height or depth h of the tilt sensor 1 relative to the bottom of the tank in real time, so as to obtain a tilt-depth variation curve θ -h, and may query the corresponding tilt at any position accordingly, thereby providing great convenience for evaluating the eligibility of the tilt.
In one embodiment, the height measuring device comprises a water pressure gauge, the water pressure gauge is used for measuring pore water pressure p, and the inclination angle-depth change curve theta-h is obtained by utilizing the relation p = rhogh of mud density rho, gravity acceleration g and water pressure. In the embodiment, the inclination angle-depth change curve theta-h is obtained by skillfully utilizing the relation between the water pressure and the depth h, and the method is simpler and more practical compared with direct height measurement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (11)
1. The inclination measuring device for the underground continuous wall is characterized by comprising a first moving mechanism and an inclination angle sensor mounted on the first moving mechanism, wherein the inclination angle sensor is parallel to the first steel plate and is spaced at a preset distance, and the first moving mechanism is suitable for moving along the height direction of the first steel plate, so that the inclination angle sensor measures the inclination angle theta of any position of the first steel plate in the height direction.
2. An underground diaphragm wall inclination measuring device according to claim 1, wherein said first moving mechanism includes a first magnet and a first roller assembly mounted on said first magnet and adapted to move up and down along said first steel plate.
3. An underground diaphragm wall inclination measuring device according to claim 2, wherein said first roller assembly includes at least one pair of rollers arranged in parallel and symmetrically.
4. An underground diaphragm wall inclination measuring device according to claim 2, wherein said first roller assembly comprises two pairs of rollers arranged in parallel and symmetrically.
5. The underground continuous wall inclination measuring device according to claim 2, further comprising a lifting and lowering device fixedly connected with the inclination angle sensor and adapted to lift or lower the inclination angle sensor upward.
6. An underground continuous wall inclination measuring device according to claim 5 and characterised in that said lifting and lowering means comprise cables and automatic cable scaling devices adapted to scale said cables at a uniform speed.
7. The underground continuous wall inclination measuring device of claim 6, wherein the cable is connected to the inclination sensor through a first limit support rod.
8. The underground continuous wall inclination measuring device according to claim 7, further comprising a second moving mechanism, wherein the second moving mechanism comprises a second magnet and a second roller assembly, the second magnet is fixedly connected with the first limit supporting rod through a second limit supporting rod, and the second roller assembly is mounted on the second magnet and is suitable for moving up and down along the second steel plate.
9. An underground continuous wall inclination measuring device according to claim 8, wherein at least one of said first magnet and said second magnet is an electromagnet, and the voltage of said electromagnet is adjustable.
10. The underground continuous wall inclination measuring device according to any one of claims 1 to 9, further comprising a height measuring device for detecting the height h of the inclination sensor in real time and obtaining an inclination-depth variation curve θ -h in combination with the inclination θ synchronously measured by the inclination sensor.
11. The underground continuous wall inclination measuring device according to claim 10, wherein the height measuring device comprises a water pressure gauge for measuring pore water pressure p, and the inclination angle-depth variation curve θ -h is obtained by using the relation p = ρ gh of mud density ρ, gravity acceleration g and water pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382435.8A CN115627763A (en) | 2022-11-07 | 2022-11-07 | Underground continuous wall inclination measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211382435.8A CN115627763A (en) | 2022-11-07 | 2022-11-07 | Underground continuous wall inclination measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115627763A true CN115627763A (en) | 2023-01-20 |
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ID=84908213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211382435.8A Pending CN115627763A (en) | 2022-11-07 | 2022-11-07 | Underground continuous wall inclination measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115627763A (en) |
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2022
- 2022-11-07 CN CN202211382435.8A patent/CN115627763A/en active Pending
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