阅读说明：本技术 一种斜拉扣挂缆索吊装系统地锚结构及施工方法 (Ground anchor structure of cable-stayed buckling and hanging cable hoisting system and construction method ) 是由 秦大燕 罗小斌 江鑫泰 徐航 王彬鹏 陈召桃 罗宗杰 黄献 于 2019-12-11 设计创作，主要内容包括：本发明公开了一种斜拉扣挂缆索吊装系统地锚结构及施工方法,其中斜拉扣挂缆索吊装系统地锚结构包括下压重和设于下压重顶部的上压重,所述上压重包括若干个竖向叠置在一起的压重层,每个压重层包括设于压重层四周的围挡以及填充在围挡中的土体,所述围挡为生态袋装土后堆砌而成,在每个压重层边缘还设有土工格栅,所述土工格栅从压重层下表面包裹围挡后翻折于压重层上表面。该地锚结构采用土体上压重,与传统的混凝土上压重作用相同,以基坑开挖的土方再利用代替混凝土进行压重,节约了大量材料,施工成本低,并且可减少后期地锚拆除工作量和对周围环境的影响。(The invention discloses a ground anchor structure of a cable-stayed buckling and hanging system and a construction method, wherein the ground anchor structure of the cable-stayed buckling and hanging system comprises a lower ballast weight and an upper ballast weight arranged at the top of the lower ballast weight, the upper ballast weight comprises a plurality of ballast layers which are vertically overlapped together, each ballast layer comprises a surrounding barrier arranged on the periphery of the ballast layer and a soil body filled in the surrounding barrier, the surrounding barrier is formed by piling up ecological bagged soil, the edge of each ballast layer is also provided with a geogrid, and the geogrid is wrapped by the lower surface of the ballast layer, surrounds the surrounding barrier and is folded on the upper surface of the ballast layer. This earth anchor structure adopts the ballast weight on the soil body, and is the same with traditional concrete ballast weight effect to the earthwork of foundation ditch excavation is recycled and is replaced the concrete and carry out the ballast weight, has practiced thrift a large amount of materials, and construction cost is low, and reducible later stage earth anchor demolishs work load and to the influence of surrounding environment.)

1. The utility model provides a draw to one side and detain cable hoist and mount system earth anchor structure, includes ballast and locates the last ballast at ballast top down, its characterized in that, go up the ballast and include the ballast layer that the vertical superpose of a plurality of is in the same place, every ballast layer is including locating ballast layer soil body that all around encloses the fender and fill in enclosing the fender, enclose to keep off and pile up behind the soil for ecological bagged soil and form, still be equipped with geogrid at every ballast layer edge, geogrid turns over a book in ballast layer upper surface after enclosing the fender from ballast layer lower surface parcel.

2. The ground anchor structure of a cable-stayed buckled and hung cable hoisting system according to claim 1, wherein a waterproof layer is arranged at the top of the upper ballast weight.

3. The ground anchor structure of a cable-stayed buckled and hung cable hoisting system according to claim 2, wherein the waterproof layer is waterproof cloth laid on the top of the upper ballast weight.

4. A cable-stayed cable-buckled and hung hoisting system ground anchor structure as claimed in any one of claims 1 to 3, wherein the weight layer is gradually contracted from bottom to top towards the center.

5. A cable-stayed cable-buckled and hung hoisting system ground anchor structure as claimed in any one of claims 1 to 3, wherein the lower ballast weight is provided with a bottom plate, and a plurality of rib plates are arranged on the bottom plate side by side at intervals.

6. The ground anchor structure of a cable-stayed buckled and hung cable hoisting system according to claim 5, wherein an anchoring beam is further arranged on the lower ballast weight and is perpendicular to the rib plate.

7. A construction method of a ground anchor structure of a cable-stayed buckling and hanging cable hoisting system is characterized by comprising the following steps:

A. laying a geogrid;

B. building an annular enclosure in the inner area of the geogrid after the ecological bagged soil is filled, and leveling and compacting the enclosure after soil is filled to form a weight layer;

C. turning the geogrid positioned on the outer side of the enclosure over the upper surface of the ballast layer;

D. and repeating the steps A-C until the top pressure is pressed and the top is sealed again.

8. The construction method of the ground anchor structure of the cable-stayed buckled and hung cable hoisting system according to claim 7, further comprising a step E of laying waterproof cloth on the top of the upper ballast weight.

9. The construction method of the earth anchor structure of a cable-stayed buckled and hung cable hoisting system according to claim 7, wherein the geogrid is laid for the first time on the top surface of the ballast layer after the construction is completed, and the geogrid is laid for the subsequent time on the upper surface of the ballast layer after the construction is completed.

10. The construction method of the ground anchor structure of the cable-stayed buckled and hung hoisting system according to claim 9, wherein the height of the ballast layer is not more than 60cm, and the ballast layer gradually shrinks from bottom to top towards the center.

Technical Field

The invention relates to the field of cable hoisting construction, in particular to a ground anchor structure of a cable-stayed buckling and hanging cable hoisting system and a construction method.

Background

In a cable-stayed buckling and hanging cable hoisting system, a large underground anchoring structure (called a ground anchor for short) needs to be built for fixing a bearing cable, a hoisting rope and a traction rope in the cable hoisting system, steering and fixing the hoisting rope and the traction rope, buckling cables in the installation process of a cable wind cable and an arch rib and the like. The ground anchor structure is in a gravity type, a pile anchor type, an anchor cable type and the like, and the common ground anchor structure is in a gravity type. The gravity type ground anchor comprises a lower ballast weight and an upper ballast weight, wherein the lower ballast weight is positioned below the ground and mainly adopts a reinforced concrete or plain concrete structure, and the upper ballast weight is positioned above the lower ballast weight and mainly adopts a plain concrete or grouted rubble structure.

Because the upper pressure weight mainly applies pressure to the lower pressure weight, the upper pressure weight is large in self weight and is usually formed by pouring C15 concrete, the concrete volume is large, the construction cost is high, the ground anchor serving as a temporary structure needs to be broken after the construction of the cable hoisting system is completed, the upper pressure weight of the concrete can cause large workload of the ground anchor dismantling, and certain influence can be caused on the surrounding environment.

Disclosure of Invention

The invention aims to: the ground anchor structure of the cable hoisting system is characterized in that the ground anchor structure is formed by adopting a soil body to be pressed with heavy weight, and is low in construction cost, and after the construction of the cable hoisting system is completed, the dismantling workload is small, and the surrounding environment is not influenced.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a draw knot cable hoist and mount system earth anchor structure to one side, includes the ballast and locates the last ballast at ballast top down, go up the ballast and include the ballast layer that the vertical superpose of a plurality of is in the same place, every ballast layer is including locating ballast layer soil body that all around encloses the fender and fill in enclosing the fender, enclose to keep off and form for piling up behind the ecological soil in bags, still be equipped with geogrid at every ballast layer edge, geogrid turns over a book in ballast layer upper surface after enclosing the fender from ballast layer lower surface parcel.

According to the invention, ecological bagged soil is piled up to form a surrounding barrier, soil is filled in the surrounding barrier to form a ballast layer, a geogrid is arranged at the edge of each ballast layer, and the geogrid is folded on the upper surface of the ballast layer after being wrapped by the surrounding barrier from the lower surface of the ballast layer, so that the edge of the ballast layer is stable, and a plurality of ballast layers are vertically overlapped on the top of a lower ballast layer to form an upper ballast of an earth anchor; this earth anchor structure adopts the ballast weight on the soil body, and is the same with traditional concrete ballast weight effect to the earthwork of foundation ditch excavation is recycled and is replaced the concrete and carry out the ballast weight, has practiced thrift a large amount of materials, and construction cost is low, and reducible later stage earth anchor demolishs work load and to the influence of surrounding environment.

As a preferable scheme of the invention, a waterproof layer is arranged on the top of the upper ballast weight. The waterproof layer is arranged at the top of the upper ballast, so that the influence of rainwater on the upper ballast of the soil body can be avoided.

As a preferable scheme of the invention, the waterproof layer is waterproof cloth paved on the top of the upper ballast weight. And the waterproof cloth is used as a waterproof layer at the top of the upper ballast, so that the cost is low and the construction is convenient.

As a preferable aspect of the present invention, the weight layer gradually shrinks from bottom to top toward the center. By enabling the ballast layers to gradually shrink towards the center from bottom to top, the size of each layer is slightly reduced, inward convergence is formed around the upper ballast, and the stability of the whole upper ballast is further ensured.

As a preferable scheme of the invention, the lower press weight is provided with a bottom plate, and a plurality of rib plates are arranged on the bottom plate side by side at intervals.

As a preferable scheme of the invention, the lower ballast weight is further provided with an anchoring beam, and the anchoring beam is arranged perpendicular to the rib plate.

A construction method of a ground anchor structure of a cable-stayed buckling and hanging cable hoisting system comprises the following steps:

A. laying a geogrid;

B. building an annular enclosure in the inner area of the geogrid after the ecological bagged soil is filled, and leveling and compacting the enclosure after soil is filled to form a weight layer;

C. turning the geogrid positioned on the outer side of the enclosure over the upper surface of the ballast layer;

D. and repeating the steps A-C until the top pressure is pressed and the top is sealed again.

According to the method, the geogrid is laid firstly, the ecological bagged soil is laid in the inner side area of the geogrid to form the annular enclosure, the soil body is filled in the enclosure and then is leveled and compacted to form the ballast layer, the geogrid located on the outer side of the enclosure is turned over on the upper surface of the ballast layer, and the plurality of ballast layers are vertically overlapped on the top of the lower ballast layer to form the upper ballast of the ground anchor through repeated construction.

As the preferred scheme of the invention, the method also comprises the step E of paving the waterproof cloth at the top of the upper ballast weight, so that the influence of rainwater on the upper ballast weight of the soil body can be avoided.

As a preferable scheme of the invention, the geogrid is laid on the top surface of the ballast layer after the construction is finished for the first time, and the geogrid is laid on the upper surface of the finished ballast layer for the subsequent time.

As a preferable scheme of the invention, the height of the weight layer is not more than 60cm, and the weight layer gradually shrinks from bottom to top to the center. By controlling the height of each layer and gradually shrinking from bottom to top to the center, the periphery of the upper ballast weight is inwards converged, and the stability of the whole upper ballast weight is further ensured.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. the method comprises the steps that ecological bagged soil is piled up to form a fence, soil bodies are filled in the fence to form a ballast layer, geogrids are arranged at the edge of each ballast layer, the geogrids wrap the fence from the lower surface of the ballast layer and then are turned over to the upper surface of the ballast layer, so that the edge of the ballast layer is stable, and a plurality of ballast layers are vertically superposed on the top of a lower ballast layer to form an upper ballast of an earth anchor; the earth anchor structure adopts the upper ballast weight of the soil body, has the same action as the upper ballast weight of the traditional concrete, replaces the concrete with the reuse of earthwork excavated by the foundation pit for ballast weight, saves a large amount of materials, has low construction cost, and can reduce the later-stage earth anchor dismantling workload and the influence on the surrounding environment;

2. the waterproof layer is arranged at the top of the upper ballast, so that the influence of rainwater on the upper ballast of the soil body can be avoided;

3. by enabling the ballast layers to gradually shrink towards the center from bottom to top, the size of each layer is slightly reduced, inward convergence is formed around the upper ballast, and the stability of the whole upper ballast is further ensured.

Drawings

Fig. 1 is a front view of an anchor structure of a cable-stayed buckling and hanging cable hoisting system in the invention.

Fig. 2 is a left side view of the anchor structure of the cable-stayed buckling and hanging cable hoisting system in the invention.

Fig. 3 is a top view of the anchor structure of the cable-stayed cable-buckled hoisting system in the invention.

Fig. 4 is a partial view of a ballast layer in the present invention.

The labels in the figure are: 1-upper ballast weight, 11-geogrid, 12-enclosure, 121-ecological bag, 13-soil body, 14-waterproof cloth, 2-ribbed plate, 3-anchoring beam, 4-lower ballast weight and 5-bottom plate.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.