CN104897143A - Cylinder forced centering observation pillar and embedment method thereof - Google Patents
Cylinder forced centering observation pillar and embedment method thereof Download PDFInfo
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- CN104897143A CN104897143A CN201410078185.8A CN201410078185A CN104897143A CN 104897143 A CN104897143 A CN 104897143A CN 201410078185 A CN201410078185 A CN 201410078185A CN 104897143 A CN104897143 A CN 104897143A
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- forced centering
- cylindrical tube
- right cylinder
- pier
- concrete
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
- G01C15/04—Permanent marks; Boundary markers
Abstract
The invention relates to a cylinder forced centering observation pillar, which comprises a cylindrical pipe adopted as a casting template, wherein a concrete chassis integrally combined with the cylindrical pipe is wrapped on the lower portion of the cylindrical pipe, the upper portion of the cylindrical pipe is positioned on the concrete chassis on the ground surface, an upper concrete column integrally combined with the cylindrical pipe is casted in the cylindrical pipe, and a forced centering scale disk is fixedly arranged on the top surface center of the upper concrete column in the cylindrical pipe. The cylinder forced centering observation pillar embedment method comprises: 1) digging a pile hole; 2) paving foundation reinforcing steel bars, and inserting four pillar vertical ribs; 3) penetrating the cylindrical pipe through the pillar vertical ribs; 4) carrying out one-time integrated casting; and 5) casting the processed forced centering scale disk so as to complete the cylinder forced centering observation pillar embedment. With the cylinder forced centering observation pillar and the cylinder forced centering observation pillar embedment method of the present invention, the construction process is simple, the sighting eccentric influence can be eliminated, and the use effect is good.
Description
Technical field
The present invention relates to a kind of observation pier for precise engineering survey and method for embedding thereof, especially a kind of right cylinder forced centering observation pier and method for embedding thereof.
Background technology
At present, the network point that China's WR and hydropower construction fields of measurement higher grade generally adopts reinforced concrete mark pier, and bidding quotation majority is stainless steel, and the mark heart is forced centering, needs the bolt use that is connected.In highway, construction of railways field then because circuit is long and traditional forced centering mark pier costly adopts form of placemarks more.This makes troubles to Controling network encryption and use, too increases the alignment error of instrument of observation process.The mark pier external form of above-mentioned network point mainly contains four directions, hexagonal pyramid body (as shown in Figure 1), and that to be exactly outward appearance be is trapezoidal, cross section is quadrilateral or hexagon.Conventional four directions, hexagonal pyramid body mark pier are built and are adopted customized profile iron template or plank sheathing, and costly, template number is few and work efficiency is low for template construct, and standard type needs to carry out the polishing of three phases and to plaster ornamenting.
Distinct issues are often run into when these mark piers of observation, sight centering error exactly, sometimes not high owing to making mark construction quality, the center of mark pier is not the center of forcing bidding quotation, also having is exactly that Different periods different angles exist refraction shade when shining upon these mark piers, even if bidding quotation is concentric with mark pier, also be difficult to accurate centering, therefore manually must set up and observe board or flag-rod and carry out accurate orientation by backsight and direction checks.To observe board and flag-rod to be fixed on mark and to have two inconvenience in the heart, one needs to take off when being erection Instrument observation, and two is observe board and flag-rod is comparatively valuable, is easily taken away loss by other people, therefore needs Inspection and maintenance of often sending someone during operation, make troubles to use.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of right cylinder forced centering observation pier and method for embedding thereof, and construction technology is simple, and can eliminate and sight Influence from Eccentric, result of use is better.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of right cylinder forced centering observation pier,
Comprise the cylindrical tube as formwork for placing, cylindrical tube lower part is enclosed with the concrete chassis became one with this cylindrical tube, and the lower part on concrete chassis is embedded in the stake holes under ground surface;
The upper part of cylindrical tube is positioned on the concrete chassis on ground surface, builds the upper concrete column became one with cylindrical tube in cylindrical tube, and upper concrete column and concrete chassis became one;
The end face center of the upper coagulation post in cylindrical tube is fixedly installed forced centering bidding quotation, and the end face center of forced centering bidding quotation is provided with forced centering screw.
Concrete chassis is made up of reinforcement foundation and the lower concrete column be cast on reinforcement foundation.
Upper concrete column is that bottom being cast in, the many colligations pier body be together fixed in reinforcement foundation erects the concrete column on muscle.
The standard type that cylindrical tube exposes concrete chassis is brushed with skin of paint red and white.
A method for embedding for right cylinder forced centering observation pier, the method comprises the following steps:
1) select to bury place underground and dig stake holes;
2) bottom the upper hole of stake holes, lay reinforcement foundation, bore four holes in reinforcement foundation centre, insert four pier bodies and erect muscle;
3) cylindrical tube is erected muscle through pier body and fixes;
4) be that pier body template disposable integral is built with cylindrical tube;
5) when concrete casting is to die head, then pour into the forced centering bidding quotation processed, namely complete burying underground of this right cylinder forced centering observation pier.
Stake holes is long 140cm, wide 140cm, the upper hole of high 20cm, or by long 140cm, the upper hole of wide 140cm, high 20cm and long 80cm, the hole of the bottom hole composition of wide 80cm, high 60cm ~ 100cm.
Cylindrical tube is pvc pipe or galvanized conduit.
In step 3), the significant height of the cylindrical tube fixed is 120cm.
The forced centering bidding quotation manufacturing process processed is: directly process forced centering screw at the end face center of forced centering bidding quotation, bottom forced centering bidding quotation, install four connecting reinforcements.
A kind of right cylinder forced centering observation pier provided by the invention and method for embedding thereof, beneficial effect is as follows:
1, cylindrical tube is adopted to build as pier body template disposable integral, working procedure simplifies, can control observation pier is upper and lower well in casting process verticality, and keep levelness and the concentricity of observation pier top forced centering bidding quotation, that eliminates the existence of existing mark pier sights centering error, thus precise alignment can be realized sight, to be conveniently suitable for.Simultaneously can need according to scene the forced centering mark pier burying differing heights underground, slope monitoring point as interim in some, to block or space-constrained control observation point, carry out building as long as cylindrical tube to be processed into suitable height, very flexibly and easily.And the more conventional four directions of pier construction method observed by this right cylinder, hexagonal pyramid body construction method saves pier body concrete material, saved template construct erected cost, the construction period is shorter, easy to maintenance.
2, adopt the mode of directly processing forced centering screw at the end face center of forced centering bidding quotation, need than routine the mode of the common bidding quotation applying mechanically coupling bolt more simple applicable, guarantee to reduce the error of centralization simultaneously.
3, carrying out in bidding quotation installation process at mark pier top can by effectively measuring the concentricity and levelness that ensure bidding quotation, thus eliminate common four directions, six side centrum mark piers exist sights centering error, thus realize precise alignment and sight, and improve accuracy of observation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the outside drawing of existing cubic centrum observation pier.
Fig. 2 is the front view of right cylinder forced centering of the present invention observation pier;
Fig. 3 is the vertical view of right cylinder forced centering of the present invention observation pier;
Fig. 4 is the outside drawing of right cylinder forced centering of the present invention observation pier.
Embodiment
As shown in Figures 2 and 3, a kind of right cylinder forced centering observation pier,
Comprise the cylindrical tube 2 as formwork for placing, cylindrical tube 2 lower part is enclosed with the concrete chassis 5 became one with this cylindrical tube 2, and the lower part on concrete chassis 5 is embedded in the stake holes 7 under ground surface;
The height that concrete chassis 5 is above the ground level is 20cm, and the height imbedding ground is 20cm;
The upper part of cylindrical tube 2 is positioned on the concrete chassis 5 on ground surface, builds the upper concrete column 8 became one with cylindrical tube 2 in cylindrical tube 2, and upper concrete column 8 becames one with concrete chassis 5;
The end face center of the upper coagulation post 8 in cylindrical tube 2 is fixedly installed forced centering bidding quotation 1, and the end face center of forced centering bidding quotation 1 is provided with forced centering screw 6.
Concrete chassis 5 is made up of reinforcement foundation 4 and the lower concrete column 9 be cast on reinforcement foundation 4.
Upper concrete column 8 erects concrete column on muscle 3 for being cast in the bottom many colligations pier body be together fixed in reinforcement foundation 4.
The standard type that cylindrical tube 2 exposes concrete chassis 5 is brushed with skin of paint red and white, as shown in Figure 4.
The method for embedding of above-mentioned right cylinder forced centering observation pier, the method is made up of following steps:
1) select to bury place underground and dig stake holes 7;
Measure the mark pier place that the first-selected basis such as bedrock surface, concrete surface is firm when reconnaissance is buried underground, next is only the better Rock soil Foundation of bearing capacity.In order to ensure that marking the stable of pier must select suitable foundation structure pattern, the larger good stability of basic overall dimensions in theory, but excessive then costly.It is more suitable that job specifications generally chooses following size according to foundation excavation situation, the long 140cm of upper hole, wide 140cm, high 20cm, the long 80cm of bottom hole, wide 80cm, high 60cm ~ 100cm(look the soil property solid situation determination degree of depth, if stable rock foundation then adopts upper hole, if earth foundation then adopts the mode of upper hole+bottom hole);
2) bottom the upper hole of stake holes 7, lay reinforcement foundation 4, bore four holes in reinforcement foundation 4 centre, insert four pier bodies and erect muscle 3(pier body and erect muscle 3 and answer colligation);
3) cylindrical tube 2 is erected muscle 3 through pier body and fixes;
4) building for pier body template disposable integral with cylindrical tube 2, in casting process, guaranteeing the verticality of pier body by hanging the mode such as vertical line or Instrument observation.When watering to ground level, in the east and west of concrete bed 5 upwards each reserved slotting survey umbrella hole, if desired bench mark should be buried underground simultaneously;
5) when concrete casting is to die head, then pour into the forced centering bidding quotation 1 processed, the verticality keeping standard type will be paid special attention to when building, and move to the center of cylindrical tube 2 pier body as far as possible, adopt the levelness of circle horizontal bubble debugging bidding quotation in time; Namely burying underground of this right cylinder forced centering observation pier is completed;
6) when after the concrete setting of whole observation pier, the paint that standard type brush is red and white, carries out reference mark numbering after paint is dry.
Conventional measuring equipment centering pedestal is of a size of 19cm × 19cm, pier height is generally 120cm, the template that the PVC of cylindrical tube 2 first-selected Φ 25cm, wall thickness 0.62cm, long 150cm is built as standard pier body, if to the extra high benchmark reference mark of stability requirement, then select Φ 25cm, the coating steel pipe of wall thickness 0.55cm carry out one-piece casting as template.
In step 3), the significant height of the cylindrical tube 2 fixed is 120cm.
Forced centering bidding quotation 1 manufacturing process processed is: directly process forced centering screw 6 at the end face center of forced centering bidding quotation 1, bottom forced centering bidding quotation 1, four connecting reinforcements are installed, by four connecting reinforcements, forced centering bidding quotation 1 are erected muscle 3 with four pier bodies and be connected.
Claims (9)
1. a right cylinder forced centering observation pier, is characterized in that:
Comprise the cylindrical tube (2) as formwork for placing, cylindrical tube (2) lower part is enclosed with the concrete chassis (5) became one with this cylindrical tube (2), and the lower part of concrete chassis (5) is embedded in the stake holes (7) under ground surface;
The upper part of cylindrical tube (2) is positioned on the concrete chassis (5) on ground surface, build the upper concrete column (8) became one with cylindrical tube (2) in cylindrical tube (2), upper concrete column (8) and concrete chassis (5) became one;
The end face center of the upper coagulation post (8) in cylindrical tube (2) is fixedly installed forced centering bidding quotation (1), and the end face center of forced centering bidding quotation (1) is provided with forced centering screw (6).
2. a kind of right cylinder forced centering observation pier according to claim 1, is characterized in that: concrete chassis (5) are made up of reinforcement foundation (4) and the lower concrete column (9) be cast on reinforcement foundation (4).
3. a kind of right cylinder forced centering observation pier according to claim 2, is characterized in that: upper concrete column (8) erects concrete column on muscle (3) for being cast in the bottom many colligations pier body be together fixed in reinforcement foundation (4).
4. a kind of right cylinder forced centering observation pier according to claim 1, is characterized in that: the standard type that cylindrical tube (2) exposes concrete chassis (5) is brushed with skin of paint red and white.
5. a method for embedding for right cylinder forced centering observation pier, is characterized in that the method comprises the following steps:
1) select to bury place underground and dig stake holes (7);
2) bottom the upper hole of stake holes (7), lay reinforcement foundation (4), bore four holes in reinforcement foundation (4) centre, insert four pier bodies and erect muscle (3);
3) cylindrical tube (2) erected muscle (3) through pier body and fix;
4) with cylindrical tube (2) for pier body template disposable integral is built;
5) when concrete casting is to die head, then pour into the forced centering bidding quotation (1) processed, namely complete burying underground of this right cylinder forced centering observation pier.
6. a kind of right cylinder forced centering observes pier according to claim 1 or 5, it is characterized in that: stake holes (7) is long 140cm, wide 140cm, the upper hole of high 20cm, or by long 140cm, the upper hole of wide 140cm, high 20cm and long 80cm, the hole of the bottom hole composition of wide 80cm, high 60cm ~ 100cm.
7. a kind of right cylinder forced centering observes pier according to claim 1 or 5, it is characterized in that: cylindrical tube (2) is pvc pipe or galvanized conduit.
8. a kind of right cylinder forced centering observation pier according to claim 5, it is characterized in that: in step 3), the significant height of the cylindrical tube (2) fixed is 120cm.
9. a kind of right cylinder forced centering observation pier according to claim 5, forced centering bidding quotation (1) manufacturing process processed that it is characterized in that is: directly process forced centering screw (6) at the end face center of forced centering bidding quotation (1), installs four connecting reinforcements in forced centering bidding quotation (1) bottom.
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| CN201410078185.8A CN104897143B (en) | 2014-03-05 | 2014-03-05 | A kind of cylinder forced centering observation pier and its method for embedding |
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Cited By (6)
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| CN105401589A (en) * | 2015-11-18 | 2016-03-16 | 中国地质大学（武汉） | Global position system (GPS) monitoring pier for frozen soil areas and swelling soil areas and construction process thereof |
| CN106323232A (en) * | 2016-09-08 | 2017-01-11 | 上海达华测绘有限公司 | Observation rod structure for natural mud surface sedimentation of deep water |
| CN106403996A (en) * | 2016-08-29 | 2017-02-15 | 中冶天工集团天津有限公司 | Production method of forced centering observation mark stake for precision engineering measurement |
| CN107724957A (en) * | 2017-10-21 | 2018-02-23 | 孟庆仕 | A kind of centering type intelligence pile digger device people |
| CN112900474A (en) * | 2021-01-26 | 2021-06-04 | 山东电力工程咨询院有限公司 | Beidou reference station observation pier construction method and observation pier |
| CN116481505A (en) * | 2023-04-25 | 2023-07-25 | 上海勘测设计研究院有限公司 | Prism and Beidou double-positioning observation pier |
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| CN201212811Y (en) * | 2008-06-05 | 2009-03-25 | 中国葛洲坝集团股份有限公司 | Novel control point marking pier for construction and measurement |
| CN101398303A (en) * | 2008-09-17 | 2009-04-01 | 中冶集团武汉勘察研究院有限公司 | Forced centering plate and embedding method |
| CN202066516U (en) * | 2011-05-16 | 2011-12-07 | 江西省水利规划设计院 | General forced centring device |
| CN203132548U (en) * | 2013-03-26 | 2013-08-14 | 中国葛洲坝集团股份有限公司 | Measurement aiming and orienting device |
| CN203310412U (en) * | 2013-06-20 | 2013-11-27 | 中国地震局地震研究所 | GNSS (global navigation satellite system) observation pillar for reducing multipath effect |
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| CN201212811Y (en) * | 2008-06-05 | 2009-03-25 | 中国葛洲坝集团股份有限公司 | Novel control point marking pier for construction and measurement |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401589A (en) * | 2015-11-18 | 2016-03-16 | 中国地质大学（武汉） | Global position system (GPS) monitoring pier for frozen soil areas and swelling soil areas and construction process thereof |
| CN105401589B (en) * | 2015-11-18 | 2017-06-23 | 中国地质大学（武汉） | A kind of GPS for frozen soil and swelled ground area monitors pier and its construction technology |
| CN106403996A (en) * | 2016-08-29 | 2017-02-15 | 中冶天工集团天津有限公司 | Production method of forced centering observation mark stake for precision engineering measurement |
| CN106323232A (en) * | 2016-09-08 | 2017-01-11 | 上海达华测绘有限公司 | Observation rod structure for natural mud surface sedimentation of deep water |
| CN107724957A (en) * | 2017-10-21 | 2018-02-23 | 孟庆仕 | A kind of centering type intelligence pile digger device people |
| CN112900474A (en) * | 2021-01-26 | 2021-06-04 | 山东电力工程咨询院有限公司 | Beidou reference station observation pier construction method and observation pier |
| CN112900474B (en) * | 2021-01-26 | 2022-08-09 | 山东电力工程咨询院有限公司 | Beidou reference station observation pier construction method and observation pier |
| CN116481505A (en) * | 2023-04-25 | 2023-07-25 | 上海勘测设计研究院有限公司 | Prism and Beidou double-positioning observation pier |
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| CN104897143B (en) | 2017-09-05 |
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