CN203498853U - Rock bolt foundation for power transmission tower - Google Patents
Rock bolt foundation for power transmission tower Download PDFInfo
- Publication number
- CN203498853U CN203498853U CN201320512432.1U CN201320512432U CN203498853U CN 203498853 U CN203498853 U CN 203498853U CN 201320512432 U CN201320512432 U CN 201320512432U CN 203498853 U CN203498853 U CN 203498853U
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- steel pipe
- rock bolt
- rock
- anchor pole
- foundation
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Abstract
The utility model discloses a rock bolt foundation for a power transmission tower. The rock bolt foundation comprises a rock bolt formed by an anchoring section and a free section, wherein part of the rock bolt extends into a rock hole; the anchoring section arranged at the lower part of the rock bolt is directly stuck with the rock stratum by anchoring agent; a steel pipe is sheathed at the outer circumference of the free section arranged at the upper part of the rock bolt; the two ends of the steel pipe are respectively provided with a fixing fixture which is connected with the rock bolt by a fastening bolt; oil is filled between the interior of the steel pipe and the rock bolt; the outer wall of the steel pipe in the corresponding rock hole is stuck with the rock stratum by the anchoring agent; a concrete bearing platform which is connected with the steel pipe in a pouring way is arranged on the outer wall of the steel pipe arranged above the corresponding rock hole. The rock bolt foundation is simple in structure and convenient to manufacture, and solves the technical problem that in the traditional technology, the compression bearing capacity can not be provided by the free section of the rock bolt; furthermore, a larger carrying capacity can be provided by the rock bolt foundation, so that the rock bolt foundation is good in stability and high in safety.
Description
Technical field
The utility model relates to a kind of basis for firm electric power pylon, is specifically related to a kind of anchor rod foundation of using while setting up electric power pylon on rock geology.
Background technology
Rock Bolt Foundation is a kind ofly in the petrosal foramen of Drilling moulding, anchor pole to be set, and a kind of anchor structure that the Anchor Agent such as cement injection, rapid setting cement mortar is made between petrosal foramen and anchor pole, after Anchor Agent solidifies, the rock stratum on anchor pole and ground tightly can be bonded together, thereby the facilities such as steel tower of anchor pole top are firmly fixed on the ground.
Rock Bolt Foundation generally can be divided into two kinds of full binding type and non-full binding types.The anchor pole of full binding type anchor rod foundation stretches out petrosal foramen for connecting steel tower facility except top, and remaining whole anchor pole all inserts in petrosal foramen, and by Anchor Agent together with the tight bond of the rock stratum on ground, pulling capacity is born in the middle and upper part of anchor pole.The anchor pole of non-full binding type anchor rod foundation only has bottom to bond by Anchor Agent and rock stratum, is called anchoring section, although the top of anchor pole is positioned at petrosal foramen, and does not fill in Anchor Agent between petrosal foramen, as free segment, free segment does not bear pressure or drag load.In order to guarantee the stable of anchoring, the concrete bearing platform that embeds ground is all built on the top of Rock Bolt Foundation, and concrete bearing platform is fixedly connected with by concreting with the top of anchor pole.
Some research discoveries in the last few years, the force way of Rock Bolt Foundation is very complicated, bears lower compressive load and horizontal load under a certain condition simultaneously, bears again simultaneously pull out load and horizontal load under another condition.The time dependent load of this size and Orientation is very large to the destruction of anchor foundation, easily causes anchor pole rupture failure or anchor pole and anchoring body interface to destroy.Because the free segment of non-full binding type anchor rod foundation can not provide Compressive Bearing Capacity, be difficult to adapt to the engine request of electric power pylon.Research for full binding type anchor rod foundation is found: in the anchor pole of full binding type Rock Bolt Foundation, top provides anti-pulling capacity, the closer to top, the pulling capacity of bearing is just larger, and rock stratum in, the general rate of decay in top is higher, its engineering properties, mechanical index etc. are all poor than rock stratum bottom, and this illustrates that full binding type anchor rod foundation can not make full use of the good rock mass of ground deep layer mechanical property.
Utility model content
The utility model technical issues that need to address are to provide and a kind ofly both can provide Compressive Bearing Capacity, can make full use of again the Rock Bolt Foundation for electric power pylon of deep rock mass.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows:
A kind of Rock Bolt Foundation for electric power pylon, comprise that part stretches into the anchor pole being comprised of anchoring section and free segment in petrosal foramen, the anchoring section of described anchor trend directly bonds by Anchor Agent and rock stratum, the excircle suit steel pipe of the free segment on described anchor pole top, the two ends of steel pipe arrange the holding clamp being connected with anchor pole by fastening bolt, between steel duct and anchor pole, fill grease, the outer wall of steel pipe of described correspondence in petrosal foramen is bonding by Anchor Agent and rock stratum, and corresponding outer wall of steel pipe setting above petrosal foramen builds with steel pipe the concrete bearing platform being connected.
Further improvement of the utility model is: the inner side of described holding clamp is installed and prevented the seal washer that grease is excessive.
Further improvement of the utility model is: at least four anchor poles are installed in described concrete bearing platform, between the steel pipe in adjacent free section outside, are connected stirrup.
Further improvement of the utility model is: the lower end of described anchoring section is welded with at least three for increasing the muscle of tying up of anchored force.
Further improvement of the utility model is: described anchor pole upper end arranges stretches out the externally threaded construction section of being with of concrete bearing platform upper surface.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is as follows:
The utility model is simple in structure, easy to make, by the outer setting steel pipe of the free segment at anchor pole, having solved free section in conventional art can not provide the technical problem of Compressive Bearing Capacity, and, according to the principle of the mechanics of materials, hollow tubular structure has stronger non-deformability than the rod shaped structure with diameter, so the utility model can provide larger supporting capacity, steadiness is good, safe.In steel pipe of the present utility model, be also sealed with for antirust grease the fracture that can avoid anchor pole to cause stress to increase and then cause due to corrosion.
The utility model is installed seal washer by the inner side at holding clamp, can prevent that the grease in steel pipe is excessive, improves the application life of anchor pole.At least four anchor poles are installed in concrete bearing platform, between the steel pipe in adjacent free section outside, by stirrup, are connected, can improve steadiness of the present utility model.The bottom of the anchoring section of anchor pole is also provided with ties up muscle, can expand the anchoring area of anchor pole bottom, improves anti-pulling capacity of the present utility model.The upper end of the utility model anchor pole arranges is with externally threaded construction section, can make the installation process of electric power pylon convenient, raises labour efficiency.
Accompanying drawing explanation
Fig. 1: structural representation of the present utility model;
Fig. 2: the structural representation of anchor pole in the utility model;
The top view of Fig. 3: Fig. 1.
Wherein: 1. anchor pole, 11. free segments, 12. anchoring sections, 13. construction sections, 2. steel pipe, 21. seal washers, 22. holding clamps, 3. stirrup, 4. ties up muscle, 5. nut, 6. pad, 7. concrete bearing platform.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done further to describe in detail:
For a Rock Bolt Foundation for electric power pylon, as depicted in figs. 1 and 2, comprise anchor pole 1, steel pipe 2, stirrup 3, tie up muscle 4 and concrete bearing platform 7.
Described anchoring section 12 is directly bonding by build pea gravel concreten and rock stratum in petrosal foramen.The bottom of anchoring section 12 is provided with three and ties up muscle 4, ties up the bar dowel that muscle 4 is less than anchor pole by diameter and makes, and is weldingly fixed on the excircle bottom of anchoring section 12, for increasing the anchored force between anchoring section and rock stratum.
As shown in Figure 1, described free segment 11 parts are positioned at petrosal foramen, and a part is positioned at the concrete bearing platform 7 of petrosal foramen top.The sheathed steel pipe 2 of excircle of free segment 11.The length of steel pipe 2 and free segment 11 equal in length, and be leveled up and down with free segment 11.Between steel pipe 2 and free segment 11, be filled with for antirust grease, the two ends of steel pipe 2 are respectively equipped with holding clamp 22, for by grease seal between steel pipe 2 and free segment 11.Holding clamp 22 is connected with anchor pole by fastening bolt.In order to prevent that grease from overflowing, the inner side of holding clamp 22 is also provided with the seal washer 21 that pitch is made.Between the outer wall of steel pipe 2 corresponding petrosal foramens and petrosal foramen, built pea gravel concreten.The outer wall of the corresponding petrosal foramen of steel pipe top is directly connected with the concrete bearing platform 7 that the later stage builds, in order further to guarantee the stability of anchor pole anchor pole to be pre-fixed before fluid concrete cushion cap 7.Between two steel pipes 2 of the arbitrary neighborhood above petrosal foramen, connect stirrup 3, described stirrup 3 is to bend and form with finer wire.In concrete bearing platform 7 is sealed in the top of four steel pipes 2 and stirrup 3.
Described construction section 13 stretches out the upper surface of concrete bearing platform 7, and construction section 13 is provided with external screw thread, and the bottom of electric power pylon is fixed on the construction section 13 of anchor pole by nut 5 and pad 6.
Claims (5)
1. the Rock Bolt Foundation for electric power pylon, comprise that part stretches into the anchor pole (1) being comprised of anchoring section (12) and free segment (11) in petrosal foramen, the anchoring section of described anchor trend (12) directly bonds by Anchor Agent and rock stratum, it is characterized in that: the excircle suit steel pipe (2) of the free segment on described anchor pole (1) top, the two ends of steel pipe arrange the holding clamp (22) being connected with anchor pole by fastening bolt, between steel pipe (2) inside and anchor pole (1), fill grease, the outer wall of steel pipe of described correspondence in petrosal foramen is bonding by Anchor Agent and rock stratum, corresponding outer wall of steel pipe setting above petrosal foramen builds with steel pipe the concrete bearing platform (7) being connected.
2. a kind of Rock Bolt Foundation for electric power pylon according to claim 1, is characterized in that: the inner side of described holding clamp (22) is installed and prevented the excessive seal washer of grease (21).
3. a kind of Rock Bolt Foundation for electric power pylon according to claim 1, is characterized in that: at least four anchor poles (1) are installed in described concrete bearing platform (7), between the steel pipe in adjacent anchor pole (1) free segment outside, are connected stirrup (3).
4. a kind of Rock Bolt Foundation for electric power pylon according to claim 1, is characterized in that: the lower end of described anchoring section (12) is welded with at least three and ties up muscle (4) for what increase anchored force.
5. a kind of Rock Bolt Foundation for electric power pylon according to claim 1, is characterized in that: described anchor pole (1) upper end arranges stretches out the externally threaded construction section of being with of concrete bearing platform upper surface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512432.1U CN203498853U (en) | 2013-08-21 | 2013-08-21 | Rock bolt foundation for power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320512432.1U CN203498853U (en) | 2013-08-21 | 2013-08-21 | Rock bolt foundation for power transmission tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203498853U true CN203498853U (en) | 2014-03-26 |
Family
ID=50329845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320512432.1U Expired - Lifetime CN203498853U (en) | 2013-08-21 | 2013-08-21 | Rock bolt foundation for power transmission tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203498853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736156A (en) * | 2018-12-13 | 2019-05-10 | 中交一公局桥隧工程有限公司 | A kind of highway barrier and sound barrier share integrated steel anchor tube foundation structure and construction method |
| CN111910681A (en) * | 2020-07-17 | 2020-11-10 | 中国电建集团中南勘测设计研究院有限公司 | Rock wall crane beam structure and construction method thereof |
-
2013
- 2013-08-21 CN CN201320512432.1U patent/CN203498853U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736156A (en) * | 2018-12-13 | 2019-05-10 | 中交一公局桥隧工程有限公司 | A kind of highway barrier and sound barrier share integrated steel anchor tube foundation structure and construction method |
| CN109736156B (en) * | 2018-12-13 | 2021-06-15 | 中交一公局桥隧工程有限公司 | Highway guardrail and sound barrier shared integrated steel anchor pipe foundation structure and construction method |
| CN111910681A (en) * | 2020-07-17 | 2020-11-10 | 中国电建集团中南勘测设计研究院有限公司 | Rock wall crane beam structure and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: POWERCHINA HEBEI ELECTRIC POWER ENGINEERING Co.,Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: HEBEI ELECTRIC POWER DESIGN & Research Institute |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |