CN113502835A - Wet cellular assembled gridwork roof beam slope protection structure of connecting - Google Patents
Wet cellular assembled gridwork roof beam slope protection structure of connecting Download PDFInfo
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- CN113502835A CN113502835A CN202110767336.0A CN202110767336A CN113502835A CN 113502835 A CN113502835 A CN 113502835A CN 202110767336 A CN202110767336 A CN 202110767336A CN 113502835 A CN113502835 A CN 113502835A
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- 230000001413 cellular effect Effects 0.000 title description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000004873 anchoring Methods 0.000 claims description 22
- 239000011241 protective layer Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000009415 formwork Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/14—Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
本发明属于格构护坡技术领域，提供了一种湿连接蜂窝状装配式格梁护坡结构。该蜂窝状装配式格梁护坡结构包括预制节点和矩形截面格构梁；预制节点包括一种中间节点和四种边节点，预制节点侧面预留卯眼，预制格构梁侧面端局部形成榫头；卯眼和榫头形状均为梯形，二者进行连接，外加预制节点外伸钢筋和预制格构梁外伸钢筋通过钢套管进行连接最终形成蜂窝状装配式格梁护坡结构。该湿连接蜂窝状装配式格梁护坡结构现场装配安装，施工速度快，缩短工期，同时保证工程质量；节点与格构梁的连接方式简单，节省人力物力；采用蜂窝形状，在达到相同的加固效果条件下，使用最少的格构结构。
The invention belongs to the technical field of lattice slope protection, and provides a wet-connected honeycomb-shaped assembled lattice beam slope protection structure. The honeycomb-like assembled lattice beam slope protection structure includes prefabricated nodes and lattice beams with rectangular cross-section; the prefabricated nodes include one intermediate node and four types of edge nodes, the side faces of the prefabricated nodes are reserved, and the side ends of the prefabricated lattice beams are partially formed with tenons; The mortise and tenon are both trapezoidal in shape, and the two are connected, and the prefabricated node outriggers and the prefabricated lattice beam outriggers are connected through steel casings to form a honeycomb assembled lattice beam slope protection structure. The wet-connected honeycomb-like assembled lattice beam slope protection structure is assembled and installed on site, with fast construction speed, shortened construction period, and guaranteed project quality; the connection between nodes and lattice beams is simple, saving manpower and material resources; the honeycomb shape is used to achieve the same reinforcement. In effect conditions, use the least amount of trellis.
Description
Technical Field
The invention belongs to the technical field of lattice slope protection, and relates to a wet-connection honeycomb assembled lattice beam slope protection structure.
Background
The lattice anchoring technology is widely applied to reinforcing and protecting road and railway embankments and water diversion engineering side slopes. The traditional lattice anchoring technology is mainly carried out by adopting a mode of cast-in-place concrete lattice beams, and the problems that the engineering period is long, the engineering quality cannot be guaranteed and the like exist. Meanwhile, the engineering application practice of the lattice anchoring technology is prior to theoretical research, so that the engineering structure design is often unreasonable. The lattice beam is seriously damaged due to the fact that the lattice beam is acted by the natural environment on the earth surface for a long time and the phenomenon of ultra-long service exists in partial engineering, so that a new structure capable of efficiently and quickly replacing the existing damaged structure is urgently needed to quickly reinforce the side slope.
Disclosure of Invention
Aiming at the problems of the lattice beam in the prior lattice anchoring technology, the invention provides a wet-connection honeycomb fabricated lattice beam slope protection structure, which solves the problems of long work period and incapability of ensuring the engineering quality in the prior engineering and can realize the rapid reinforcement of the prior slope.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a wet-connection honeycomb fabricated grid beam slope protection structure comprises prefabricated nodes and prefabricated grid beams 21, wherein the cross sections of the prefabricated grid beams 21 are rectangular, corresponding reinforcement cages and overhanging reinforcements are uniformly distributed in the prefabricated grid beams 21, and the outermost parts of the prefabricated grid beams are concrete protection layers; the prefabricated nodes comprise a middle node 11, a first edge node 12, a second edge node 13, a third edge node 14 and a fourth edge node 15; the middle nodes 11 have three supporting points and are arranged at intervals of 120 degrees; the first edge node 12 has two pivot points, and the included angle of the two pivot points is 120 degrees; the second side node 13 has three pivot points, wherein two pivot points are positioned on the same straight edge, and the included angle between the other pivot point and the straight edge is 60 degrees; three 14 side nodes share two supporting points, and the included angle between the two supporting points is 90 degrees; the four side nodes 15 have three supporting points, wherein two supporting points are positioned on the same straight edge, and the included angle between the other supporting point and the straight edge is 90 degrees; an anchoring channel is reserved at the intersection point of each fulcrum of the prefabricated node, is in an inverted frustum shape, and is matched with an inverted frustum-shaped anchoring block 31; the outer side and the bottom of the inverted round platform-shaped anchoring block 31 are made of steel, and the middle of the inverted round platform-shaped anchoring block is poured with concrete; an anchor rod hole 311 is reserved in the middle of the inverted circular truncated cone-shaped anchoring block 31 and is fixed with an anchor rod; mortises are reserved on the side faces of the prefabricated nodes, tenons 211 are formed on the side ends of the prefabricated lattice beams 21 locally, and the mortises are matched with the tenons 211 to realize connection of the prefabricated nodes and the prefabricated lattice beams 21; the steel sleeve 41 is located at the end of the prefabricated node overhanging steel bar, the prefabricated node overhanging steel bar and the prefabricated lattice beam overhanging steel bar 212 are connected through the steel sleeve 41, a concrete protective layer is poured on the surface layer of the steel sleeve 41, and finally the honeycomb assembly type lattice beam slope protection structure is formed.
Through the connection of prefabricated node and prefabricated lattice beam 21, finally form cellular lattice slope protection structure, with the stock comprehensive application, realize the quick reinforcement to the side slope.
The mortise reserved at the prefabricated node is connected with the tenon at the end part of the prefabricated lattice beam 21, so that the prefabricated node is smoothly and accurately combined with the prefabricated lattice beam 21.
The prefabricated nodes and the overhanging steel bars of the prefabricated lattice beam 21 are connected through steel sleeves, and the continuity of the stressed steel bars is guaranteed.
The prefabricated nodes and the prefabricated lattice beam 21 are positioned and poured through mortise and tenon 211, and the safety of the structure is guaranteed.
The construction method of the wet connection honeycomb assembly type lattice beam slope protection structure comprises the following steps:
step 1, prefabricating corresponding prefabricated nodes and prefabricated lattice beams in a factory, maintaining, and conveying finished products to a construction site after requirements are met;
step 2, cleaning a side slope, leveling the slope surface, determining the placing positions of the prefabricated nodes and the prefabricated lattice beams, and excavating a skeleton foundation groove;
step 3, placing prefabricated nodes at the positions of the node foundation grooves, enabling anchor rods to penetrate through anchoring channels and anchoring blocks, fixing the nodes on the side slopes, and placing prefabricated lattice beams between adjacent nodes;
step 4, connecting the overhanging steel bars between the prefabricated lattice beam and the nodes through steel sleeves;
step 5, erecting a formwork at the joint of the prefabricated node and the prefabricated lattice beam, and pouring concrete to form the structure into a whole; curing the concrete, and removing the formwork after the strength meets the requirement;
and 6, tensioning the anchor rod in the middle of the node, and supporting a mold for grouting and sealing the anchor.
The invention has the beneficial effects that: the wet-connection honeycomb assembly type lattice beam slope protection structure adopts the form of prefabricated nodes and prefabricated lattice beams, is assembled and installed on site, is high in construction speed, shortens construction period and ensures engineering quality. The connection mode of the prefabricated nodes and the prefabricated lattice beams is simple, the arrangement of staff on a construction site is reduced, and manpower and material resources are saved.
This cellular assembled gridwork slope protection structure can be prefabricated at the mill, improves utilization of raw materials, reduces building rubbish's production, is favorable to ecological environment protection.
The cellular assembled lattice beam slope protection structure adopts a cellular structure, and uses the least lattice structure under the condition of achieving the same reinforcing effect.
Drawings
FIG. 1 is a schematic structural view of a prefabricated node and a prefabricated lattice beam after the integral assembly is completed;
FIG. 2 is a schematic structural diagram of the prefabricated nodes and the prefabricated lattice beam integrally assembled to be poured;
FIG. 3 is a schematic diagram of an intermediate node;
FIG. 4 is a schematic diagram of an edge node;
FIG. 5 is a schematic diagram of an edge node two;
FIG. 6 is a schematic diagram of an edge node III;
FIG. 7 is a schematic diagram of edge node four;
FIG. 8 is a schematic view of a frustum-shaped anchor block;
fig. 9 is a schematic view of a prefabricated lattice beam.
In the figure, 11, intermediate nodes; 111. an intermediate node anchoring channel; 112. middle node mortise; 113. a middle node steel reinforcement cage; 114. the middle node extends outwards to form a steel bar; 115. an intermediate node protective layer; 12. a first edge node; 121. the side node is provided with an anchoring channel; 122. a mortise is formed in each edge node; 123. a reinforcement cage is arranged at the edge node; 124. an overhanging steel bar of the edge node I; 125. a protective layer at the edge node; 13. a second edge node; 131. the second side node is used for anchoring the channel; 132. two-mortise hole of edge node; 133. a second reinforcement cage is connected with the edge node; 134. two extending steel bars of the edge nodes; 135. a second edge node protective layer; 14. a third edge node; 141. three anchoring channels are arranged at the side nodes; 142. side node three-mortise; 143. three steel reinforcement cages are arranged at the edge nodes; 144. the third edge node extends outwards to form a steel bar; 145. three protective layers of edge nodes; 15. a fourth edge node; 151. four anchoring channels are arranged at the side nodes; 152. four-mortise of edge node; 153. four steel reinforcement cages are arranged at the side nodes; 154. four outwards extending steel bars of the side nodes; 155. four protective layers of edge nodes; 21. prefabricating a lattice beam; 211. a tenon; 212. prefabricating a latticed beam overhanging steel bar; 213. prefabricating a lattice beam reinforcement cage; 214. prefabricating a lattice beam protective layer; 31. an inverted truncated cone-shaped anchoring block; 311. an anchor rod hole; 41. a steel casing.
Detailed Description
For a better understanding of this patent, specific embodiments of the invention are described below:
the following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the scope of the present invention defined and defined by the appended claims, and all matters produced by the invention using the inventive concept are protected.
Examples
As shown in fig. 1, the prefabricated structure comprises two parts, namely a prefabricated node and a prefabricated lattice beam, the overhanging length of the prefabricated node is designed according to actual needs, the prefabricated node comprises a middle node 111, a middle node mortise 112, middle node overhanging steel bars 114, a middle node steel bar cage 113 and a middle node protective layer 115, an inverted round platform-shaped anchoring channel is reserved in the middle of the node, and the mortise is trapezoidal. The ends of the intermediate node overhanging steel bars 114 are provided with steel sleeves 41 for connection with the overhanging steel bars of the prefabricated lattice beam. The prefabricated lattice beam mainly comprises a tenon 211 and prefabricated latticesThe structure beam comprises structure beam overhanging steel bars 212, a prefabricated lattice beam steel reinforcement cage 213 and a prefabricated lattice beam protection layer 214. The concrete strength of the prefabricated lattice beam is not less than C20, and the size of the longitudinal bar is not less than
The size of the stirrup is not less than
The concrete protective layer is not less than 30mm, and the length of the beam is selected to be 2-4 m.
The anchor channel of prefabricated node is inverted frustum form, puts into the anchor piece, can guarantee the engineering quality better, realizes the connection and the biography power of stock and prefabricated lattice beam, simultaneously, also can reserve the slant anchor channel when prefabricated node, and corresponding preparation slope anchor piece realizes the requirement of different anchor angles. And after the anchor rod is tensioned, pouring and grouting are carried out on the anchor rod hole, and all the structures are connected into a whole, so that the requirement of lattice anchoring is met.
The detailed construction method of the structure comprises the following steps:
and step one, performing corresponding calculation and design according to the slope condition, completing reinforcement distribution of the prefabricated nodes and the prefabricated lattice beams, and performing production of the prefabricated nodes and the prefabricated lattice beams according to the design. If the existing slope supporting structure is replaced, the length of the prefabricated lattice beam is matched with the distance between the existing anchor rods. Maintaining according to the standard after the prefabrication of the components is finished, and conveying to a construction site after the standard is reached;
and step two, finishing the side slope field, cleaning up the floating soil on the surface of the side slope to ensure that the surface of the field is generally flat, determining the positions of corresponding anchoring points and prefabricated lattice beams according to design measurement, excavating foundation trenches according to the determined positions and flattening the side slope again. If the existing side slope supporting structure is replaced, the existing side slope supporting structure needs to be cleaned, and the side slope is leveled, so that the new structural requirements are met.
And step three, drilling and laying anchor rods according to the designed anchor rod positions, and after the anchor rods are installed, placing prefabricated nodes at corresponding positions to enable the anchor rods to penetrate through anchoring channels 111 of the prefabricated nodes to fix the anchor rods. And (3) hoisting corresponding prefabricated lattice beams 21 around the prefabricated nodes, so that the tenons 211 of the prefabricated lattice beams are connected into the mortises of the prefabricated nodes, and the prefabricated lattice beams and the prefabricated nodes are positioned. The overhanging steel bars 212 of the prefabricated lattice girder and the overhanging steel bars 114 of the prefabricated nodes are connected by means of steel sleeves 41.
And step four, repeating the steps, and installing the prefabricated lattice beams and the nodes at the positions of each corresponding prefabricated node and each corresponding prefabricated lattice beam, so that the framework lap joint of the side slope supporting structure is realized, and the flatness of the whole structure is ensured.
And fifthly, formwork erecting is carried out at the joint of the prefabricated node and the prefabricated lattice beam, the upper part of the prefabricated lattice beam is pulled, the prefabricated lattice beam after pouring is ensured to be flush with the surface of the node, concrete is poured, and the prefabricated lattice beam is vibrated while pouring, so that the engineering quality is ensured. And (5) curing the concrete after pouring is finished, and removing the formwork after the requirement is met.
And step six, tensioning the anchor rod, and supporting a formwork again, grouting and sealing the anchor to realize the final side slope supporting structure.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767336.0A CN113502835A (en) | 2021-07-07 | 2021-07-07 | Wet cellular assembled gridwork roof beam slope protection structure of connecting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110767336.0A CN113502835A (en) | 2021-07-07 | 2021-07-07 | Wet cellular assembled gridwork roof beam slope protection structure of connecting |
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| CN113502835A true CN113502835A (en) | 2021-10-15 |
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| CN202110767336.0A Pending CN113502835A (en) | 2021-07-07 | 2021-07-07 | Wet cellular assembled gridwork roof beam slope protection structure of connecting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114182744A (en) * | 2021-12-31 | 2022-03-15 | 苏州大学 | A degradable hexagonal ecological slope protection device and slope protection method thereof |
| CN114991179A (en) * | 2022-06-10 | 2022-09-02 | 南华大学 | Prefabricated cross beam and prefabricated cross beam slope reinforcing structure and construction method |
| CN116356848A (en) * | 2021-12-28 | 2023-06-30 | 江苏路博建设发展有限公司 | Prefabricated Lattice Beam Secondary Anchor Cable Tension Steel Concrete Joint Structure and Construction Method |
| CN119195177A (en) * | 2024-11-12 | 2024-12-27 | 中国十七冶集团有限公司 | A kind of assembled slope protection structure and construction method thereof |
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| JP2018009430A (en) * | 2016-07-12 | 2018-01-18 | 株式会社サンライズ | Device and method for constructing retaining wall in disaster-relief work |
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
| CN109487803A (en) * | 2018-11-16 | 2019-03-19 | 西南交通大学 | A kind of assembled skeleton slope protection and its construction method |
| CN210177522U (en) * | 2019-05-30 | 2020-03-24 | 广东大潮高速公路有限公司 | A prefabricated prefabricated anchor-cable lattice beam ecological slope protection structure |
| CN213267936U (en) * | 2020-07-24 | 2021-05-25 | 内蒙古蒙创生态技术有限公司 | Assembled bee lattice greening protective framework |
| CN112921994A (en) * | 2021-01-28 | 2021-06-08 | 杭州泰川建设技术有限公司 | Lattice beam structure and construction method thereof |
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| JP2018009430A (en) * | 2016-07-12 | 2018-01-18 | 株式会社サンライズ | Device and method for constructing retaining wall in disaster-relief work |
| CN109024632A (en) * | 2018-09-14 | 2018-12-18 | 南华大学 | A kind of the precast lattice beam structure and assembly monolithic construction method of slope reinforcement |
| CN109487803A (en) * | 2018-11-16 | 2019-03-19 | 西南交通大学 | A kind of assembled skeleton slope protection and its construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116356848A (en) * | 2021-12-28 | 2023-06-30 | 江苏路博建设发展有限公司 | Prefabricated Lattice Beam Secondary Anchor Cable Tension Steel Concrete Joint Structure and Construction Method |
| CN114182744A (en) * | 2021-12-31 | 2022-03-15 | 苏州大学 | A degradable hexagonal ecological slope protection device and slope protection method thereof |
| CN114991179A (en) * | 2022-06-10 | 2022-09-02 | 南华大学 | Prefabricated cross beam and prefabricated cross beam slope reinforcing structure and construction method |
| CN119195177A (en) * | 2024-11-12 | 2024-12-27 | 中国十七冶集团有限公司 | A kind of assembled slope protection structure and construction method thereof |
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