CN216041244U - Assembled anchoring structure for slope support - Google Patents
Assembled anchoring structure for slope support Download PDFInfo
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- CN216041244U CN216041244U CN202122651378.6U CN202122651378U CN216041244U CN 216041244 U CN216041244 U CN 216041244U CN 202122651378 U CN202122651378 U CN 202122651378U CN 216041244 U CN216041244 U CN 216041244U
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Abstract
The utility model relates to an assembled anchoring structure for slope support, and belongs to the field of stable foundations of slopes or slopes. Comprises a side slope, wherein a concrete supporting structure is laid on the slope surface in parallel; the supporting structure is detachably connected with a prefabricated steel structural part through a fastener, the thickness of the prefabricated steel structural part is gradually increased from one end to the other end, and the thinner end faces to a slope toe of the side slope; the outer surface of the prefabricated steel structural member comprises a side slope plane and an anchor head plane, the side slope plane and the anchor head plane are two surfaces of the prefabricated steel structural member in the thickness direction respectively, and the side slope plane is attached to the supporting structure; the anchorage device comprises an anchor head and an anchor cable steel bundle penetrating through the anchor head, wherein the anchor head is abutted against the side plane of the anchor head, and the anchor cable steel bundle penetrates through the prefabricated steel structural part and the supporting structure and then extends into the side slope. The structure does not adopt the traditional cast-in-place anchor pier, the prefabricated steel structural part can be prefabricated according to the required geometric dimension in advance, and the problems of difficulty and quality difficulty in anchor pier pouring construction are solved through assembly type installation and construction.
Description
Technical Field
The utility model belongs to the technical field of foundation buildings, and particularly relates to an assembled anchoring structure for slope support.
Background
The prestressed anchor cable support is an effective support technology widely applied to slope support, in particular to a large steep rock slope. When the prestressed anchor cable is used for supporting, the anchor cable extending into the side slope generally forms an included angle of 10-30 degrees with the horizontal plane, and the installation of the prestressed anchor and the anchor backing plate on the slope surface (surface) of the side slope needs to be vertical to the anchor cable, so that the included angle of the anchor and the anchor backing plate with the horizontal plane is 60-80 degrees. The inclination angle between the surface of the slope surface and the supporting structure and the horizontal plane is usually smaller than the angle, that is, in practice, the surface of the slope surface and the supporting structure is not parallel to the anchor backing plate of the anchor device, and an anchor pier structure is required to be arranged at the end of the anchor device to adapt to the difference angle between the anchor backing plate and the slope surface. One side of the anchor pier structure is attached to an anchor backing plate of the prestressed anchor, and the other side of the anchor pier structure is attached to the surface of the supporting structure of the slope surface of the side slope.
The conventional method at present adopts the steps of pouring a reinforced concrete anchor pier on a side slope and arranging a concrete anchor head closed anchorage device outside. The anchor pier structure relates to the tensioning and anchoring of the prestress of an anchor cable, the reliability of the anchor pier structure is related to the safety of the construction and operation of the slope engineering, and the conventional method at present has the following defects:
1. in order to adapt to the difference angle between the anchor backing plate and the slope surface of the side slope, according to the geometric relation, the cast-in-place anchor pier structure is generally in a triangular, trapezoidal or polygonal structure in the cross section direction of the side slope, the size of the whole structure is small, and cast-in-place concrete belongs to a small-volume space special-shaped structure and is difficult to achieve ideal construction quality in the aspects of template installation, pouring, vibrating compaction and the like; local cracking and other diseases are easy to occur during tensioning.
2. If the side slope has certain deformation during use, the concrete anchor pier structure is difficult to adapt to the deformation, and diseases such as cracking, water seepage, falling and the like are easy to generate.
3. The concrete anchor pier and the anchor head structure cannot be disassembled and replaced during use, and the maintenance and the pipe-culture of the slope prestressed anchor cable supporting structure are inconvenient;
4. because the anchorage device is wrapped by the concrete anchor head, the prestress of the anchor cable is difficult to supplement and stretch in the later period, and the deformation of the side slope is not easy to control.
5. Concrete anchor piers and anchor heads need to be cast and constructed on high and steep slopes, and the problems of long construction period, difficulty in material transportation, high risk of building supports and the like exist.
SUMMERY OF THE UTILITY MODEL
In view of the above, the technical problem to be solved by the present invention is how to provide an assembled anchoring structure for slope support, which avoids the problems of inconvenient construction and poor use effect of the existing cast-in-place anchor pier structure adopted in slope support, and achieves the effects of quality improvement, efficiency improvement, and convenient and reliable use.
In order to achieve the purpose, the utility model provides the following technical scheme:
an assembled anchoring structure for side slope support comprises a side slope, wherein a concrete supporting structure is laid on the slope surface of the side slope in parallel, and an anchorage device is arranged on the side slope after penetrating through the concrete supporting structure and extending into the side slope; the concrete supporting structure is fixedly connected with a prefabricated steel structural member through a fastener, the thickness of the prefabricated steel structural member is gradually increased linearly from one end to the other end, and the thinner end of the prefabricated steel structural member faces to a slope toe of a side slope; the outer surface of the prefabricated steel structural part comprises a side slope plane and an anchor head plane, wherein the side slope plane and the anchor head plane are two surfaces of the prefabricated steel structural part in the thickness direction respectively; the side slope side plane of the prefabricated steel structural member is attached to the concrete supporting structure; the anchor comprises an anchor head and an anchor cable steel bundle penetrating through the anchor head, the anchor head is abutted against the side plane of the anchor head of the prefabricated steel structural member, and the anchor cable steel bundle penetrates through the side plane of the anchor head, the side plane of the side slope and the concrete supporting structure in a linear type and then extends into the side slope.
The anchoring structure does not adopt a traditional cast-in-place anchor pier structure, adopts prefabricated steel structural parts for adapting to a difference angle between an anchor backing plate and a slope surface during assembly construction, can manufacture adaptive geometric height and angle according to the geometric relation of actual working conditions to meet the geometric characteristics of the structure, can adopt factory prefabrication and assembly type installation construction, has high manufacturing precision, and avoids the problems of difficult pouring construction of the special-shaped anchor pier of small-volume concrete and difficult quality guarantee.
Further perfecting the technical scheme, the anchor cable steel bundle is vertical to the side plane of the anchor head, and the included angle between the anchor cable steel bundle and the horizontal plane is 10-30 degrees.
Therefore, the method meets the relevant standard requirements, and the reliability of the whole structure is better.
Furthermore, a certain length is reserved on one side, away from the anchor head side plane, of the anchor head of the anchor cable steel bundle, a detachable anchor head protection steel cover is arranged on the anchor head side plane in a sealing and buckling mode, the anchor head protection steel cover is detachably connected to the anchor head side plane, and the anchor head and the anchor cable steel bundle reserved outside the anchor head are partially located in the anchor head protection steel cover.
Therefore, the prestress adjustment of the anchor cable steel bundle at the later stage is facilitated, the anchor head protective steel cover is more suitable for the working condition that the slope has deformation possibility, and the anchor head and the anchor cable steel bundle part reserved outside the anchor head can be effectively protected in daily life.
Furthermore, a waterproof material is filled in the anchor head protection steel cover.
Therefore, the protection of the anchor head and the anchor cable steel bundle part reserved outside the anchor head is further ensured.
Further, prefabricated steel structure spare includes steel construction anchor pier backing plate and anchor head steel backing plate, passes through connecting piece fixed connection between steel construction anchor pier backing plate and the anchor head steel backing plate, and the lateral surface of steel construction anchor pier backing plate forms the side slope side plane, the lateral surface of anchor head steel backing plate forms anchor head side plane.
Therefore, the prefabricated steel structural part with a specific structural form is provided, and is simple to manufacture and reliable to use.
Further, the connecting piece includes annular supporting steel plate, annular supporting steel plate is the tube-shape and both ends face has the angle that corresponds with the contained angle on side slope lateral plane and anchor head lateral plane, and steel construction anchor pier backing plate and anchor head backing plate are fixed connection respectively on annular supporting steel plate's both ends face.
Thus, the effective and reliable connection of the structural anchor pier base plate and the anchor head steel base plate which guarantee the prefabricated steel structural member can be guaranteed.
Furthermore, the axis of the annular supporting steel plate is perpendicular to the anchor head steel base plate, and the anchor cable steel bundle is arranged adjacent to the axis of the annular supporting steel plate.
Therefore, the abutting limiting effect of the prefabricated steel structural part on the anchor head and the tensile force support of the anchor cable steel beam can be effectively guaranteed.
Furthermore, a supporting steel plate unit with a cross section shaped like a Chinese character 'jing' is fixedly connected in the annular supporting steel plate, the supporting steel plate unit extends along the axis of the annular supporting steel plate, and two ends of the supporting steel plate unit are flush with two end faces of the annular supporting steel plate.
Furthermore, the area of the steel structure anchor pier backing plate is larger than and completely covers the corresponding end face of the annular supporting steel plate, and a plurality of additional stiffening rib plates which are circumferentially spaced are fixedly connected between the outer side face of the annular supporting steel plate and the steel structure anchor pier backing plate; the number of the additional stiffening rib plates corresponds to the number of the steel plates of the support steel plate units in the shape of a Chinese character jing, and the connecting positions correspond to the extending direction of the steel plates of the support steel plate units in the shape of the Chinese character jing; the area of the anchor head steel backing plate is equal to and completely covers the corresponding end surface of the annular supporting steel plate; the fastener is connected on steel construction anchor pier backing plate protrusion in the round edge of annular supporting steel plate, and the quantity of fastener is a plurality of and be circumference equipartition.
Therefore, the structural strength of the prefabricated steel structural part is further improved, the use reliability is guaranteed, and the manufacturing difficulty is low.
Further, the fastener adopts a bolt or an expansion screw.
Like this, guarantee that the fixed prefabricated steel structure spare can be dismantled on the concrete supporting construction, be convenient for dismantle the change during the use, be convenient for slope prestressed support structure's maintenance and management support.
The utility model has the beneficial effects that:
this anchor structure does not adopt traditional cast-in-place anchor pier structure, but has adopted prefabricated steel structure spare to be used for adapting to the anchor backing plate and the domatic differential angle of side slope when the assembly construction, and the geometric characteristics that the prefabricated steel structure spare can satisfy the structure according to the geometric relation preparation geometry height and the angle of operating condition geometric relation adaptation can adopt the batch production prefabrication, the assembly type installation and construction, and the preparation precision is high, has avoided the problem that difficulty and quality in little volume concrete dysmorphism anchor pier pouring construction are difficult to guarantee.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view (in section) of an assembled anchoring structure for slope support of an embodiment;
FIG. 2 is a view from the direction A in FIG. 1 (mainly illustrating a prefabricated steel structural member);
FIG. 3 is a schematic view of an anchor head protecting steel cap of the prefabricated steel structural member in the embodiment;
FIG. 4 is a schematic view of an anchor head steel shim plate of the prefabricated steel structural member in the example;
FIG. 5 is a schematic view of an annular support steel plate and associated connectors of the prefabricated steel structural member of the embodiment;
fig. 6 is a schematic view of a steel structure anchor pier backing plate of the prefabricated steel structural member in the embodiment.
Reference numerals:
the steel-reinforced concrete slope supporting structure comprises prestressed pipelines 1, anchor cable steel bundles 2, a concrete supporting structure 3, a slope surface 4, a steel-structure anchor pier base plate 5, an anchor head steel base plate 6, an anchor head protection steel cover 7, a finished anchor 8, an annular supporting steel plate 9, additional stiffening rib plates 10, a bolt and nut system 11 and a supporting steel plate unit 12.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1, an assembled anchoring structure for slope support comprises a slope surface 4, a concrete supporting structure 3, a prefabricated steel structural member, a bolt and nut system 11, a finished anchorage device 8, an anchor head protection steel cover 7 and waterproof fillers; the prefabricated steel structural member comprises a steel structure anchor pier base plate 5, an annular supporting steel plate 9 adapting to the geometric height and angle, a groined supporting steel plate unit 12, an additional stiffening rib plate 10 and an anchor head steel base plate 6; the finished anchorage device 8 adopts the existing structure and comprises an anchor head and an anchor cable steel bundle 2 penetrating through the anchor head. A steel structure anchor pier base plate 5 is horizontally arranged on the concrete supporting structure 3 and is connected with the concrete supporting structure 3 through a bolt and nut system 11; the anchor head steel backing plate 6 is vertical to the anchor cable steel bundle 2, and the angle between the anchor head steel backing plate and the steel structure anchor pier backing plate 5 is ninety degrees minus the sum of the included angle between the anchor cable steel bundle 2 and the horizontal plane and the slope gradient; the annular supporting steel plate 9 adapting to the geometric height and the angle is positioned between the steel structure anchor pier base plate 5 and the anchor head steel base plate 6, and the geometric dimension needs to adapt to the included angle between the steel structure anchor pier base plate 5 and the anchor head steel base plate 6; the groined supporting steel plate unit 12 which is suitable for the geometric height and the angle is connected to the inner side of the annular supporting steel plate 9, and the geometric dimension of the groined supporting steel plate unit also is suitable for the included angle between the steel structure anchor pier base plate 5 and the anchor head steel base plate 6; the anchor head of the finished anchor 8 is abutted against the anchor head steel backing plate 6, the outer side of the finished anchor is reserved with the anchor cable steel bundle 2 with enough length, the inner end of the anchor cable steel bundle 2 penetrates through the prefabricated steel structural part and the concrete supporting structure 3 and extends into the side slope, and the middle parts of the steel structure anchor pier backing plate 5 and the anchor head steel backing plate 6 are correspondingly provided with through holes. A cylindrical anchor head protecting steel cover 7 with one sealed end is arranged on the outer side of the anchor head steel backing plate 6 and covers the finished anchorage device 8 and the reserved anchor cable steel bundle 2 in a sealing way, and waterproof fillers (not shown in the figure) are filled in the anchor head protecting steel cover 7.
The supporting steel plate units 12 extend outwards and are provided with additional stiffening rib plates 10 between the outer sides of the annular supporting steel plates 9 and the steel structure anchor pier backing plates 5, and the additional stiffening rib plates 10 are triangular steel plates.
The anchor head protection steel cover 7 can be detached and replaced; the prefabricated steel structural member can be wholly or partially disassembled and replaced; when the method is implemented, all the components of the prefabricated steel structural member are connected through welding seams; the exposed surfaces need to be subjected to anti-corrosion treatment.
In this embodiment, the included angle between the slope surface 4 of the side slope and the horizontal plane is 45 °. The included angle b between the prestressed pipe 1 and the anchor cable steel bundle 2 and the horizontal plane is 20 degrees. The steel structure components are all Q345B steel plates with the thickness of 20mm, the steel structure anchor pier backing plate 5 is a steel plate with the diameter of 500mm, the anchor head steel backing plate 6 is a steel plate with the diameter of 350mm, the angle a between the steel structure anchor pier backing plate 5 and the steel structure anchor pier backing plate 5 is 90-20-45 degrees which is 25 degrees, the annular supporting steel plate 9 is positioned between the steel structure anchor pier backing plate 5 and the anchor head steel backing plate 6, the geometric dimension needs to be adapted to the included angle between the steel structure anchor pier backing plate 5 and the anchor head steel backing plate 6, the groined supporting steel plate unit 12 is also positioned in the inner side area of the annular supporting steel plate 9, and the geometric dimension adapts to the included angle a between the steel structure anchor pier backing plate 5 and the anchor head steel backing plate 6; the finished product anchorage device 8 is arranged on the anchor head steel backing plate 6, the outer side of the finished product anchorage device is reserved with an anchor cable steel bundle 2 with the length of 500mm, and the anchor head protection steel cover 7 is 2mm in thickness and 150mm in diameter.
The assembled anchoring structure for slope support of the embodiment effectively solves the following problems:
1) the prefabricated steel structural member can adopt factory prefabrication, and the assembly type installation and construction has high manufacturing precision, and avoids the problems that the pouring construction of the small-volume concrete special-shaped anchor pier is difficult and the quality is difficult to guarantee.
2) If the side slope has certain deformation during use, the anchoring structure has strong adaptive deformation capability, and avoids diseases such as cracking, water seepage, falling off and the like of a concrete structure.
3) The prefabricated steel structural member is connected with the concrete supporting structure 3 through the bolt and nut system 11, and can be detached and replaced during use, so that the maintenance and the pipe maintenance of the slope prestressed anchor cable anchoring structure are facilitated.
4) The anchor head protection steel cover 7 can be connected to the anchor head steel base plate through spot welding and can be detached, and the operation can be conveniently carried out when the requirement of tensioning the prestressed anchor cable steel bundle 2 is met in the later stage.
5) The assembly type construction mode avoids the condition that the cast-in-place anchor pier structure needs to be cast and constructed on a high and steep slope, has short construction period and light weight, is easy to transport and install, and can quickly form the anchor of the slope.
For easy understanding, the construction process of the fabricated anchoring structure is further briefly described as follows:
preparing a prefabricated steel structural member in advance according to the required geometric dimension; flattening a slope surface 4, drilling holes, installing anchor rope steel bundles 2 and a prestressed pipeline 1, completing the laying construction of a concrete supporting structure 3 according to the prior art, connecting a prefabricated steel structural member to the concrete supporting structure 3 through a bolt and nut system 11, grouting in the prestressed pipeline 1, abutting a finished anchor 8 on an anchor head steel backing plate 6, reserving the anchor rope steel bundles 2 with enough length on the outer side, and enabling the inner ends of the anchor rope steel bundles 2 to penetrate through the prefabricated steel structural member and extend into the prestressed pipeline 1; tensioning and locking a prestressed anchor cable steel strand 2; and finally, buckling an anchor head protection steel cover 7 and placing waterproof filler inside.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. An assembled anchoring structure for side slope support comprises a side slope, wherein a concrete supporting structure is laid on the slope surface of the side slope in parallel, and an anchorage device is arranged on the side slope after penetrating through the concrete supporting structure and extending into the side slope; the method is characterized in that: the concrete supporting structure is detachably connected with a prefabricated steel structural part through a fastener, the thickness of the prefabricated steel structural part is gradually increased from one end to the other end, and the thinner end of the prefabricated steel structural part faces to a slope toe of a side slope;
the outer surface of the prefabricated steel structural part comprises a side slope plane and an anchor head plane, wherein the side slope plane and the anchor head plane are two surfaces of the prefabricated steel structural part in the thickness direction respectively; the side slope side plane of the prefabricated steel structural member is attached to the concrete supporting structure;
the anchor comprises an anchor head and an anchor cable steel bundle penetrating through the anchor head, the anchor head is abutted against the side plane of the anchor head of the prefabricated steel structural member, and the anchor cable steel bundle penetrates through the side plane of the anchor head, the side plane of the side slope and the concrete supporting structure in a linear type and then extends into the side slope.
2. The fabricated anchoring structure for slope support according to claim 1, wherein: the anchor cable steel bundle is vertical to the side plane of the anchor head, and the included angle between the anchor cable steel bundle and the horizontal plane is 10-30 degrees.
3. The fabricated anchoring structure for slope support according to claim 1, wherein: the anchor cable steel bundle is reserved on one side, deviating from the anchor head side plane, of the anchor head, an anchor head protection steel cover is arranged on the anchor head side plane in a sealing buckle mode, the anchor head protection steel cover is detachably connected to the anchor head side plane, and the anchor cable steel bundle reserved outside the anchor head and the anchor head is located in the anchor head protection steel cover.
4. The fabricated anchoring structure for slope support according to claim 3, wherein: and a waterproof material is filled in the anchor head protection steel cover.
5. The fabricated anchoring structure for slope support according to claim 1, wherein: the prefabricated steel structure part comprises a steel structure anchor pier base plate and an anchor head steel base plate, the steel structure anchor pier base plate and the anchor head steel base plate are fixedly connected through a connecting piece, the steel structure anchor pier base plate is formed into the side slope side plane, and the anchor head steel base plate is formed into the anchor head side plane.
6. The fabricated anchoring structure for slope support according to claim 5, wherein: the connecting piece includes annular supporting steel plate, annular supporting steel plate is the tube-shape and both ends face has the angle that corresponds with the contained angle on side slope lateral plane and anchor head lateral plane, and steel construction anchor pier backing plate and anchor head steel backing plate are fixed connection respectively on annular supporting steel plate's both ends face.
7. The fabricated anchoring structure for slope support according to claim 6, wherein: the axis of the annular supporting steel plate is perpendicular to the anchor head steel base plate, and the anchor cable steel bundle is adjacent to the axis of the annular supporting steel plate.
8. The fabricated anchoring structure for slope support according to claim 6, wherein: the supporting steel plate unit with the cross section shaped like a Chinese character 'jing' is fixedly connected in the annular supporting steel plate, the supporting steel plate unit extends along the axis of the annular supporting steel plate, and the two ends of the supporting steel plate unit are flush with the two end faces of the annular supporting steel plate.
9. The fabricated anchoring structure for slope support according to claim 8, wherein: the area of the steel structure anchor pier backing plate is larger than and completely covers the corresponding end surface of the annular supporting steel plate, and a plurality of additional stiffening rib plates which are circumferentially spaced are fixedly connected between the outer side surface of the annular supporting steel plate and the steel structure anchor pier backing plate;
the fastener is connected on steel construction anchor pier backing plate protrusion in the round edge of annular supporting steel plate, and the quantity of fastener is a plurality of and be circumference equipartition.
10. An assembled anchoring structure for slope support according to any one of claims 1-9, wherein: the fastener adopts a bolt or an expansion screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651378.6U CN216041244U (en) | 2021-10-29 | 2021-10-29 | Assembled anchoring structure for slope support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122651378.6U CN216041244U (en) | 2021-10-29 | 2021-10-29 | Assembled anchoring structure for slope support |
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| Publication Number | Publication Date |
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| CN216041244U true CN216041244U (en) | 2022-03-15 |
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| CN202122651378.6U Active CN216041244U (en) | 2021-10-29 | 2021-10-29 | Assembled anchoring structure for slope support |
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| CN (1) | CN216041244U (en) |
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2021
- 2021-10-29 CN CN202122651378.6U patent/CN216041244U/en active Active
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