CN111794236A - Method for detecting perpendicularity of constant-section precast pile - Google Patents
Method for detecting perpendicularity of constant-section precast pile Download PDFInfo
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- CN111794236A CN111794236A CN202010451840.5A CN202010451840A CN111794236A CN 111794236 A CN111794236 A CN 111794236A CN 202010451840 A CN202010451840 A CN 202010451840A CN 111794236 A CN111794236 A CN 111794236A
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- precast pile
- guiding ruler
- angle guiding
- angle
- perpendicularity
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a method for detecting the perpendicularity of a precast pile with a uniform cross section. With two angle guiding ruler bodies the long limit of angle guiding ruler is placed respectively on the alignment line of precast pile and is adopted the slipknot to fix on the precast pile, then adjusts the angle guiding ruler minor face to the spirit level demonstration level, then reads out data and record on the angle gauge display screen. The method can effectively control the perpendicularity of the pile body through detection during the construction of the precast pile, has strong operability, is convenient to carry detection equipment, controllable in precision and convenient to carry detection instruments, and the detection result can reflect the actual perpendicularity of the pile body.
Description
Technical Field
The invention belongs to the field of precast pile detection methods, and particularly relates to a method for detecting the perpendicularity of a constant-section precast pile.
Background
In the modern society, with the rapid development of traffic and construction engineering, precast piles are widely applied to engineering. The rigidity is larger, the effect of reinforcing the foundation is better, and the effects of controlling settlement and improving bearing capacity are obvious. However, the construction process of the precast pile has certain influence on the function of the pile body, especially the pile sinking mode by adopting a hammering or static pressure method, when the verticality deviation of the pile body is large, the direction of the pile body under the hammering force or the static pressure is not parallel to the axial direction of the pile body, the pile is easy to explode or sink, even joint welding seams of the precast pile with joints are separated or broken, the construction quality of the precast pile is seriously influenced, and the vertical bearing capacity of the pile body is influenced to play a role.
At present, the perpendicularity of a precast pile is mainly guaranteed to be horizontally placed according to a level meter of an operation chamber of a pile driver, and construction technicians usually adopt two theodolites to control the perpendicularity from two directions, so that the actual perpendicularity deviation of the pile is difficult to obtain.
Therefore, the angle guiding rule is adopted to detect the perpendicularity of the precast pile during construction, the operation is simple and convenient, the precision is controllable, the detection instrument is convenient to carry, the detection result can reflect the actual perpendicularity of the pile body, and meanwhile, the method can be used as a detection method for checking the perpendicularity control of the pile driving machine.
Disclosure of Invention
The invention aims to provide a method for detecting the perpendicularity of a precast pile with a uniform cross section, which is particularly suitable for detecting the perpendicularity of a precast pile during construction by a user.
In order to solve the technical problems, the invention adopts the technical scheme that: the method for detecting the perpendicularity of the constant-section precast pile is provided and comprises the following steps:
the first step is as follows: and (3) symmetrically drawing positioning lines of the precast pile to be detected, wherein the positioning lines are perpendicular to the upper bottom surface and the lower bottom surface of the precast pile and are parallel to the central axis of the precast pile, and the length of each positioning line is at least 1.5 m.
The precast pile is circular precast pile, measure and reachs this circular radius, and make auxiliary positioning instrument, auxiliary positioning instrument encloses through two the same connecting rods of upper and lower two the same apical rings and both sides, and the apical ring is the quarter ring, and this ring radius is the same for circular radius with circular precast pile cross-section, install the leader between the connecting rod of both sides, two apical rings and two connecting rods of auxiliary positioning instrument all paste tightly with circular precast pile lateral wall, draw out the line of location through the connecting rod.
The cross section of the precast pile is rectangular or polygonal, and a positioning line parallel to the central axis of the pile is made on the outer wall of the precast pile through a square.
The second step is that: preparing two angle guiding ruler bodies, the angle guiding ruler body includes the long limit of angle guiding ruler and angle guiding ruler minor face, and the long limit of angle guiding ruler rotates through a connecting axle with the angle guiding ruler minor face and connects, installs spirit level and angle appearance display screen on the short limit of angle guiding ruler, and the spirit level detects angle guiding ruler minor face level, and angle appearance display screen shows that the long limit of angle guiding ruler and angle guiding ruler minor face press from both sides angle value, and the long limit length of angle guiding ruler is 1.5 meters and has the scale.
The third step: with two angle guiding ruler bodies the long limit of angle guiding ruler is placed respectively on the alignment line of precast pile and is adopted the slipknot to fix on the precast pile, then adjusts the angle guiding ruler minor face to the spirit level demonstration level, then reads out data and record on the angle gauge display screen.
The fourth step: and measuring three groups of data by the third step, calculating the vector sum of the perpendicularity deviation of the measuring points in two directions of each group to obtain the perpendicularity value of the group, and carrying out average calculation on the three groups of values to obtain the final value. The calculation formula is as follows:
for convenience of operation, the user can also obtain the offset corresponding to each group and the perpendicularity in the direction by looking up the table after measuring the angle.
The mode is convenient for field construction technicians to operate, helps to strengthen the control of the perpendicularity of the precast pile in the construction process, and effectively improves the bearing capacity of the precast pile.
The invention has the advantages and positive effects that: by adopting the technical scheme, the perpendicularity of the pile body can be effectively controlled through detection during construction of the precast pile, the method has the advantages of strong operability, convenience in carrying of detection equipment, controllable precision and convenience in carrying of detection instruments, detection results can reflect the actual perpendicularity of the pile body, meanwhile, the method can be used for checking perpendicularity control of a piling machine, and the method has good market popularization prospect.
Drawings
FIG. 1 is a schematic view of the auxiliary positioning tool of the present invention;
FIG. 2 is a schematic view of an embodiment of the auxiliary positioning tool of the present invention disposed on a circular precast pile;
fig. 3 is a schematic view of the measuring method of the circular precast pile of the present invention.
In the figure:
1. auxiliary positioning tool 11, top ring 12 and connecting rod
13. Handle 2, circular precast pile 3, location line
4. Angle guiding rule body 41, long side 42 of angle guiding rule, short side of angle guiding rule
43. Connecting shaft 44, angle instrument display screen 45 and level gauge
Detailed Description
As shown in fig. 1-3, the invention relates to a method for detecting the perpendicularity of a pre-cast pile with an equal section, which comprises the following steps:
the first step is as follows: the precast pile to be detected is symmetrically drawn with positioning lines 3, the positioning lines 3 are perpendicular to the upper bottom surface and the lower bottom surface of the precast pile and are parallel to the central axis of the precast pile, and the length of each positioning line is at least 1.5 m.
The precast pile is circular precast pile 2, measure and reachs this circular radius, and make auxiliary positioning instrument 1, auxiliary positioning instrument 1 encloses through two the same connecting rods 12 of two top rings 11 and both sides about through, and top ring 11 is the quarter ring, and this ring radius is the same for circular radius with 2 cross-sections of circular precast pile, install leader 13 between the connecting rod 12 of both sides, two top rings 11 and two connecting rods 12 of auxiliary positioning instrument 1 all paste tightly with 2 lateral walls of circular precast pile, draw out location line 3 through connecting rod 12.
The cross section of the precast pile can also be rectangular or polygonal, and a positioning line 3 parallel to the central axis of the pile is made on the outer wall of the precast pile through a square.
The second step is that: prepare two angle guiding ruler bodies 4, angle guiding ruler body 4 includes the long limit of angle guiding ruler 41 and angle guiding ruler short side 42, the long limit of angle guiding ruler 41 rotates through a connecting axle 43 with angle guiding ruler short side 42 and connects, install spirit level 45 and angle appearance display screen 44 on the angle guiding ruler short side 42, spirit level 45 detects angle guiding ruler short side 42 level, angle appearance display screen 44 shows the long limit of angle guiding ruler 41 and angle guiding ruler short side 42 angle value that presss from both sides, the long limit of angle guiding ruler 41 length is 1.5 meters and has the scale.
The third step: with two angle guiding ruler bodies 4 the long limit 41 of angle guiding ruler is placed respectively on the position line 3 of precast pile and is adopted the slipknot to fix on the precast pile, then adjusts angle guiding ruler short side 42 to spirit level 45 and shows the level, then reads out data and record on the angle gauge display screen 44.
The fourth step: and measuring three groups of data by the third step, calculating the vector sum of the perpendicularity deviation of the measuring points in two directions of each group to obtain the perpendicularity value of the group, and carrying out average calculation on the three groups of values to obtain the final value. The calculation formula is as follows:
similarly, the user can also obtain the offset corresponding to each group and the verticality in the direction by looking up the table.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (3)
1. A detection method for perpendicularity of a preformed pile with a uniform cross section is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: symmetrically drawing positioning lines (3) of the precast pile to be detected, wherein the positioning lines (3) are perpendicular to the upper bottom surface and the lower bottom surface of the precast pile and parallel to the central axis of the precast pile, and the length of each positioning line is at least 1.5 m;
the second step is that: preparing two angle guiding ruler bodies (4), wherein each angle guiding ruler body (4) comprises a long angle guiding ruler edge (41) and a short angle guiding ruler edge (42), the long angle guiding ruler edge (41) and the short angle guiding ruler edge (42) are rotatably connected through a connecting shaft (43), a level meter (45) and a display screen (44) of the angle meter are installed on the short angle guiding ruler edge (42), the level meter (45) detects the level of the short angle guiding ruler edge (42), the display screen (44) of the angle meter displays angle values clamped by the long angle guiding ruler edge (41) and the short angle guiding ruler edge (42), and the long angle guiding ruler edge (41) is 1.5 m in length and is provided with scales;
the third step: respectively placing the long sides (41) of the two angle guiding ruler bodies (4) on the positioning line (3) of the precast pile and fixing the long sides on the precast pile by adopting a slipknot, then adjusting the short sides (42) of the angle guiding ruler to the display level of the level gauge (45), and then reading and recording data on a display screen (44) of the angle gauge;
the fourth step: and measuring three groups of data by the third step, calculating the vector sum of the perpendicularity deviation of the measuring points in two directions of each group to obtain the perpendicularity value of the group, and carrying out average calculation on the three groups of values to obtain the final value. The calculation formula is as follows:
2. the method for detecting the perpendicularity of the constant-section precast pile according to claim 1, wherein the method comprises the following steps: in the first step, the precast pile is circular precast pile (2), measures and reachs this circular radius to preparation auxiliary positioning instrument (1), auxiliary positioning instrument (1) encloses through two the same apical rings (11) and two the same connecting rods (12) of both sides from top to bottom, just apical ring (11) are the quarter ring, and this ring radius with circular precast pile (2) cross-section is the same for circular radius, both sides install leader (13) between connecting rod (12), two of auxiliary positioning instrument (1) apical ring (11) and two connecting rod (12) all with circular precast pile (2) lateral wall pastes tightly, through connecting rod (12) are drawn line of location (3).
3. The method for detecting the perpendicularity of the constant-section precast pile according to claim 1, wherein the method comprises the following steps: in the first step, the cross section of the precast pile is rectangular or polygonal, and a positioning line (3) parallel to the central axis of the pile is formed on the outer wall of the precast pile through a square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451840.5A CN111794236A (en) | 2020-05-26 | 2020-05-26 | Method for detecting perpendicularity of constant-section precast pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451840.5A CN111794236A (en) | 2020-05-26 | 2020-05-26 | Method for detecting perpendicularity of constant-section precast pile |
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| CN111794236A true CN111794236A (en) | 2020-10-20 |
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| CN202010451840.5A Pending CN111794236A (en) | 2020-05-26 | 2020-05-26 | Method for detecting perpendicularity of constant-section precast pile |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534555Y (en) * | 2002-04-16 | 2003-02-05 | 杨建龙 | Inner and outer right angle gauge |
| KR20080113906A (en) * | 2007-06-26 | 2008-12-31 | 주식회사 한미파슨스건축사사무소 | Vertical care pile |
| CN202420964U (en) * | 2012-02-15 | 2012-09-05 | 葛洲坝集团试验检测有限公司 | Scribing device for cylindrical test samples of elastic modulus of concrete |
| CN207280330U (en) * | 2017-10-27 | 2018-04-27 | 广西交投科技有限公司 | A kind of simple circumferential registration device for engineering survey |
-
2020
- 2020-05-26 CN CN202010451840.5A patent/CN111794236A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2534555Y (en) * | 2002-04-16 | 2003-02-05 | 杨建龙 | Inner and outer right angle gauge |
| KR20080113906A (en) * | 2007-06-26 | 2008-12-31 | 주식회사 한미파슨스건축사사무소 | Vertical care pile |
| CN202420964U (en) * | 2012-02-15 | 2012-09-05 | 葛洲坝集团试验检测有限公司 | Scribing device for cylindrical test samples of elastic modulus of concrete |
| CN207280330U (en) * | 2017-10-27 | 2018-04-27 | 广西交投科技有限公司 | A kind of simple circumferential registration device for engineering survey |
Non-Patent Citations (1)
| Title |
|---|
| 石中林等: "《地基基础检测》", 31 August 2013, 华中科技大学出版社 * |
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Application publication date: 20201020 |