CN218211308U - Device for measuring verticality of cast-in-situ bored pile - Google Patents
Device for measuring verticality of cast-in-situ bored pile Download PDFInfo
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- CN218211308U CN218211308U CN202222069718.9U CN202222069718U CN218211308U CN 218211308 U CN218211308 U CN 218211308U CN 202222069718 U CN202222069718 U CN 202222069718U CN 218211308 U CN218211308 U CN 218211308U
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Abstract
The utility model discloses a bored concrete pile straightness measuring device that hangs down, including ring, the jib and the lifting rope that pass the ring centre of a circle perpendicularly, the jib is connected fixedly with the ring through a plurality of connecting rod, the lifting rope setting is used for vertically putting to the height of measurement department under the downthehole lateral wall of bored concrete pile stake with the ring at the tip of jib, the subaerial fender pile that is equipped with four cross arrangement of level of the drill way outside in bored concrete pile stake hole, wherein, line between two relative fender piles is water flat line and intersects perpendicularly with the lifting rope, and the nodical punishment is used for the measurement of straightness that hangs down to the aperture that distance cooperation ring diameter and bored concrete pile stake hole between two fender piles between other to two fender piles together. The utility model discloses can solve current verticality measuring tool cost higher, require higher technical problem to operating personnel.
Description
Technical Field
The utility model relates to a bored concrete pile construction technical field among deep basal pit excavation and the supporting engineering, in particular, relate to a bored concrete pile squareness measurement device.
Background
With the increasing urbanization process in China, the ground space is in tension day by day, so that the development and utilization of the underground space are rapidly increased, and the requirements on the safety and the quality of the underground foundation pit enclosure structure are higher and higher. The bored pile is directly formed into a hole on the pile position, the reinforcement cage framework is hung in the hole Regula. The construction process is simple, can adapt to the change of stratum, does not need to connect piles, and the reinforcement cage and the concrete can be processed and delivered in a centralized way, also can be processed on site, the operation is convenient, the noise and the vibration are small during the construction, and the pile which is much larger than the diameter of the precast pile can be built, and can be used on various foundations, and the construction process does not need large-scale equipment, and has the advantages of fast progress, mature process, safety and reliability. The cast-in-situ bored pile has been widely used in the foundations of structural engineering such as highways, railroad bridges and the like due to the mature construction process, high bearing capacity and wide application range. The quality of the cast-in-situ bored pile directly relates to the quality and safety of the whole structure, and in the cast-in-situ bored pile construction process, if the pile hole is inclined, the steel reinforcement cage cannot be placed to the bottom, and the guide pipe cannot be placed, so that the verticality of the pile hole must meet the design requirement in order to ensure the bearing capacity of the pile foundation. The verticality measurement of the cast-in-situ bored pile is always a difficult problem to be troubled for construction units, and if professional instruments are purchased for verticality measurement, the cost is too high, and professional training is required for users and equipment maintenance. Therefore, it is a common problem in the industry to find a tool for measuring the verticality of a bored pile, which is convenient to operate, safe, reliable and capable of ensuring construction quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a bored concrete pile straightness measuring device that hangs down to solve current straightness measuring tool that hangs down the technical problem that the cost is higher, require to be higher to operating personnel.
According to the utility model discloses an aspect provides a bored concrete pile straightness measuring device that hangs down, including ring, the jib and the lifting rope that pass the ring centre of a circle perpendicularly, the jib is connected fixedly through a plurality of connecting rod and ring, the lifting rope setting is used for vertically putting to the measurement height department with the ring along bored concrete pile downthehole lateral wall down at the tip of jib, and bored concrete pile straightness measuring device that hangs down is still including laying in the outside level of drill way in bored concrete pile stake hole is subaerial to be equipped with the fender pile that four cross set up, and wherein, line between two relative fender piles is for water flat line and intersects perpendicularly with the lifting rope, and the nodical punishment is used for the measurement of straightness that hangs down together apart from cooperation ring diameter and bored concrete pile hole between two fender piles respectively.
As a further improvement of the technical scheme: the hanging rods are located on two sides of the circular ring and have different extending lengths.
Furthermore, the distance from the connecting end of the suspender and the lifting rope to the center of the circular ring is less than the distance from the other end of the suspender to the center of the circular ring.
Further, the distance from the connecting end of the suspender and the lifting rope to the center of the circular ring is equal to 1/7 of the distance from the other end of the suspender to the center of the circular ring.
Furthermore, the total weight of the circular ring, the suspender and the connecting rod is 2-3 Kg.
Furthermore, the weight of the suspender accounts for 70-90% of the total weight of the three components.
Furthermore, a plurality of the tie point of connecting rod and ring evenly distributed on the ring, a plurality of the tie point of connecting rod and jib is located same excircle and evenly distributed.
Further, the outer surface of the circular ring is of a smooth structure.
Furthermore, the outer surface of the hanger rod is provided with a thread structure.
Furthermore, a plurality of balancing weights arranged at intervals are arranged on the lifting rope and used for disturbing the swinging frequency of the lifting rope so as to enable the lifting rope to be kept stable quickly.
The utility model discloses following beneficial effect has:
when the novel device for measuring the verticality of the cast-in-place pile is used, the suspender is hung by the hanging rope and the circular ring is lowered along the hole wall on one side of the cast-in-place pile hole, and the triangle d is calculated by using the formula delta d = d1-d2+ phi A/2-d, wherein d1 is the distance from the intersection point of the connecting line between two opposite retaining piles and the hanging rope to the retaining pile at the farther position, d1 is the distance from the intersection point of the connecting line between the two opposite retaining piles and the hanging rope to the retaining pile at the closer position, phi A is the diameter of the circular ring, d is the design diameter of the hole of the cast-in-place pile hole, and the verticality of the cast-in-place pile hole can be calculated by using the formula i =deltad/h 100% (i is the verticality, h is the falling height of the circular ring in the cast-in-place pile hole); the drilling pile can be manufactured by utilizing waste steel bars, so that the hole forming quality of the drilling pile is improved, the measurement by using expensive professional instruments is omitted, the construction efficiency is improved, and the effective control of the construction verticality is ensured; the process measurement control on the verticality of the cast-in-situ bored pile can be carried out simply, efficiently and conveniently at any time and any place, and compared with the conventional verticality measurement device, the device has the advantages of low manufacturing cost, simple structure and convenience in use and carrying; the method can provide reference for measuring the verticality of the cast-in-situ bored pile in future, and has strong universality, good social benefit and good popularization and application prospects.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a cast-in-situ bored pile verticality measuring device according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural view of the cast-in-situ bored pile verticality measuring apparatus according to the preferred embodiment of the present invention in use;
fig. 3 is a schematic structural diagram of the position relationship between the suspension rod and the circular ring according to the preferred embodiment of the present invention.
Illustration of the drawings:
1. a circular ring; 2. a boom; 3. a lifting rope; 4. a connecting rod; 5. filling pile holes; 6. and (7) pile protection.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
As shown in fig. 1 to 3, the device for measuring the verticality of a bored pile according to the present embodiment includes a circular ring 1, a suspension rod 2 and a suspension rope 3 vertically penetrating through the center of the circular ring 1, the suspension rope 3 may be a solid plastic rope, the suspension rod 2 is fixedly connected with the circular ring 1 through a plurality of connecting rods 4, the suspension rope 3 is disposed at the end of the suspension rod 2 and is used for vertically placing the circular ring 1 to a height measurement position along the inner side wall of the bored pile hole 5, and four piles 6 are disposed on the horizontal ground outside the hole of the bored pile hole 5 in a crossed manner, wherein a connecting line between two opposite piles 6 is a horizontal line and is vertically intersected with the suspension rope 3, and the intersection point is respectively located at a position between two piles 6 and is used for measuring the verticality together with the diameter of the circular ring 1 and the hole diameter of the bored pile hole 5.
In the embodiment, phi 6-10 hot rolled plain steel bars are bent to form a ring 1 with the diameter of 400mm, 400mm long phi 20-25 hot rolled twisted steel bars are used as a suspender 2 to be arranged in the center of the ring 1, and then 3 phi 6-10 hot rolled plain steel bars are used as a connecting rod 4 to weld the ring 1 and the suspender 2 into a whole in an electric welding mode.
The utility model discloses a during bored pile perpendicularity measuring device used, hang jib 2 and make ring 1 transfer along one side pore wall of bored pile stake hole 5 with lifting rope 3, utilize formula delta d = d1-d2+ phi A/2-d to calculate delta d, wherein, d1 is the distance from the intersect point of line between two relative fender piles 6 and lifting rope 3 to fender pile 6 far away, d1 is the distance from the intersect point of line between two relative fender piles 6 and lifting rope 3 to fender pile 6 near, phi A is the diameter of ring 1, d is the design diameter in the hole of bored pile stake hole 5, reuse formula i =deltad/h 100% (i is the straightness that hangs down, h is the whereabouts height of ring 1 in bored pile hole 5) can calculate the straightness that hangs down of bored pile in height h department; the drilling pile can be manufactured by utilizing waste steel bars, so that the hole forming quality of the drilling pile is improved, the measurement by using expensive professional instruments is omitted, the construction efficiency is improved, and the effective control of the construction verticality is ensured; the process measurement control on the verticality of the cast-in-situ bored pile can be carried out simply, efficiently and conveniently at any time and any place, and compared with the conventional verticality measurement device, the device has the advantages of low manufacturing cost, simple structure and convenience in use and carrying; the method can provide reference for measuring the verticality of the cast-in-situ bored pile in future, and has strong universality, good social benefit and good popularization and application prospects.
In this embodiment, the distance from the connecting end of the suspender 2 connected with the lifting rope 3 to the center of the circular ring 1 is equal to 1/7 of the distance from the other end of the suspender 2 to the center of the circular ring 1, so that the suspender 2 and the lifting rope 3 can be on the same vertical line in the free tensioning state of the lifting rope 3, and the plane of the circular ring 1 can be in the horizontal state.
In this embodiment, four piles 6 that the cross set up are pile structures that pile foundation construction pile core positioning control's general requirement used, and the bored concrete pile straightness measuring device that hangs down of this embodiment utilizes the pile structure that exists in the pile foundation construction itself as measuring device's a part, more can embody the bored concrete pile straightness measuring device that hangs down of this embodiment and have advantages such as the cost of manufacture is lower, simple structure, convenient to use.
In this embodiment, the total weight that ring 1, jib 2 and connecting rod 4 three are constituteed is 2 ~ 3Kg, neither operating difficulties, and the lifting rope can not appear swinging when guaranteeing to measure again, can guarantee that the structure that ring 1, jib 2 and connecting rod 4 are constituteed has better sag in the process of putting into bored concrete pile stake hole 5, can straighten lifting rope 3, does benefit to the accuracy nature that improves the straightness that hangs down and measure. In the embodiment, the circular ring 1, the suspender 2 and the connecting rod 4 are made of steel bars which are mainly used as the raw materials in a construction site are more, so that the site processing is convenient, the popularization is strong, the suspender 2 is preferably made of steel with high density, the suspender 2 accounts for 70-90% of the total weight of the three, and the rope hanging is convenient; the ring 1 is preferably made of a rigid material.
In this embodiment, the tie point of a plurality of connecting rod 4 and ring 1 evenly distributed on ring 1, the tie point of a plurality of connecting rod 4 and jib 2 is located same excircle and evenly distributed. The above arrangement can ensure that the gravity center of the whole structure formed by the connecting rod 4, the circular ring 1 and the suspender 2 is positioned on the numerical line passing through the central point of the circular ring 1, and is beneficial to improving the accuracy of verticality measurement.
In this embodiment, the outer surface of the ring 1 is smooth. The threaded structure is arranged on the outer surface of the suspender 2, so that the device for measuring the verticality of the cast-in-situ bored pile requires that the suspender 2 is relatively heavy in weight, a rope is convenient to hang, the general major-diameter threaded steel bar on a construction site just meets the requirement, and the device for measuring the verticality of the cast-in-situ bored pile can be made of local materials. The requirement on the weight of the circular ring 1 is relatively light, but the circular ring 1 is required to have high rigidity and smooth surface, so that the measurement effect is prevented from being influenced by hanging the well wall.
In this embodiment, the center line of the suspender 2 is collinear with the center line 1 of the lifting rope 3, so as to ensure higher accuracy of the measurement result.
In this embodiment, the lifting rope 3 is provided with a plurality of balancing weights arranged at intervals for disturbing the swing frequency of the lifting rope 3 to keep the lifting rope fast and stable.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for measuring the verticality of a cast-in-situ bored pile is characterized by comprising a circular ring (1), a suspender (2) and a lifting rope (3), wherein the suspender vertically penetrates through the circle center of the circular ring (1),
the suspension rod (2) is fixedly connected with the circular ring (1) through a plurality of connecting rods (4), the lifting rope (3) is arranged at the end part of the suspension rod (2) and is used for vertically placing the circular ring (1) to a position for measuring the height along the inner side wall of the cast-in-place pile hole (5),
the device for measuring the verticality of the cast-in-situ bored pile further comprises four guard piles (6) which are arranged on the horizontal ground outside the hole opening of the cast-in-situ bored pile hole (5) in a crossed mode, wherein a connecting line between two opposite guard piles (6) is a horizontal line and is vertically crossed with the lifting rope (3).
2. The cast-in-situ bored pile verticality measuring device according to claim 1,
the hanging rods (2) are located on two sides of the circular ring (1) and have different extending lengths.
3. The cast-in-situ bored pile verticality measuring apparatus according to claim 2,
the distance from the connecting end of the suspender (2) and the lifting rope (3) to the center of the circular ring (1) is less than the distance from the other end of the suspender (2) to the center of the circular ring (1).
4. The cast-in-situ bored pile verticality measuring device according to claim 2,
the distance from the connecting end of the suspender (2) and the lifting rope (3) to the center of the circular ring (1) is equal to 1/7 of the distance from the other end of the suspender (2) to the center of the circular ring (1).
5. The cast-in-situ bored pile verticality measuring apparatus according to any one of claims 1 to 4,
the total weight of the ring (1), the suspender (2) and the connecting rod (4) is 2-3 Kg.
6. The cast-in-situ bored pile verticality measuring device according to claim 5,
the weight of the suspender (2) accounts for 70-90% of the total weight of the suspender, the suspender and the suspender.
7. The cast-in-situ bored pile verticality measuring apparatus according to any one of claims 1 to 4,
a plurality of the tie point of connecting rod (4) and ring (1) evenly distributed on ring (1), a plurality of the tie point of connecting rod (4) and jib (2) is located same excircle and evenly distributed.
8. The cast-in-situ bored pile verticality measuring apparatus according to any one of claims 1 to 4,
the outer surface of the circular ring (1) is of a smooth structure.
9. Cast-in-situ bored pile verticality measuring apparatus according to any one of claims 1 to 4,
the outer surface of the suspender (2) is provided with a thread structure.
10. The cast-in-situ bored pile verticality measuring apparatus according to any one of claims 1 to 4,
the lifting rope (3) is provided with a plurality of balancing weights which are arranged at intervals and used for disturbing the swinging frequency of the lifting rope (3) so as to enable the swinging frequency to be kept stable quickly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222069718.9U CN218211308U (en) | 2022-08-08 | 2022-08-08 | Device for measuring verticality of cast-in-situ bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222069718.9U CN218211308U (en) | 2022-08-08 | 2022-08-08 | Device for measuring verticality of cast-in-situ bored pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218211308U true CN218211308U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222069718.9U Active CN218211308U (en) | 2022-08-08 | 2022-08-08 | Device for measuring verticality of cast-in-situ bored pile |
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| Country | Link |
|---|---|
| CN (1) | CN218211308U (en) |
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2022
- 2022-08-08 CN CN202222069718.9U patent/CN218211308U/en active Active
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