阅读说明：本技术 标牌基础及其施工方法 (Label foundation and construction method thereof ) 是由 高亮 严静星 李虎 孙玉巧 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种标牌基础及其施工方法。本发明包括至少包括筒状的立柱护壁,在所述的立柱护壁底部设置有基础球；在所述的基础球上均布有多个斜桩。所述的基础球为连接立柱护壁和空心斜桩的装置,其上部开注浆孔,所述的立柱护壁为固定标牌立柱护壁的钢套筒。本发明结构简单、安全可靠,成本低廉,充分利用空心斜桩发挥出的水平力,从而避免传统标牌基础规模较大,导致基础侵入车行道范围内,从而造成沥青路面反射裂缝的出现,也不利于道路管线的沿侧分带布置,因此本发明在狭窄场地具有极大的优势,实用性较强,同时本发明主要部件均采取预制结构,利于现场快速化施工。(The invention discloses a label foundation and a construction method thereof. The invention comprises a cylindrical upright post retaining wall, wherein a foundation ball is arranged at the bottom of the upright post retaining wall; a plurality of inclined piles are uniformly distributed on the foundation ball. The foundation ball is a device for connecting the upright post protecting wall and the hollow inclined pile, the upper part of the foundation ball is provided with a grouting hole, and the upright post protecting wall is a steel sleeve for fixing the signboard upright post protecting wall. The invention has simple structure, safety, reliability and low cost, fully utilizes the horizontal force exerted by the hollow inclined piles, thereby avoiding the phenomenon that the traditional label foundation has larger scale, causes the foundation to invade into the range of the roadway, thereby causing the reflection crack of the asphalt pavement, and is not beneficial to the arrangement of the road pipeline along the side branch zone.)

1. A signage base, comprising: the device at least comprises a cylindrical upright post retaining wall, wherein a foundation ball is arranged at the bottom of the upright post retaining wall; a plurality of inclined piles are uniformly distributed on the foundation ball.

2. The signage footing of claim 1 wherein: also comprises a concrete foundation for wrapping the foundation ball.

3. The signage footing of claim 1 wherein: the foundation ball is hollow, grouting holes are formed in the hollow foundation ball, and slurry is injected into the hollow part through the grouting holes.

4. The signage footing of claim 1 wherein: the foundation ball and the inclined pile are hollow, and the hollow parts of the foundation ball and the inclined pile are communicated; the hollow foundation ball is provided with grouting holes, and the hollow part is injected with slurry through the grouting holes.

5. The signage footing of claim 1 wherein: and foundation stiffening ribs and/or foundation flange plates are arranged outside the upright post retaining wall.

6. The signage footing of claim 1 wherein: the included angle between the inclined pile and the horizontal plane is preferably controlled to be 30-45 degrees.

7. The signage footing of claim 1 wherein: through holes are formed in the inclined pile body at intervals of a preset distance.

8. A construction method of a label foundation is characterized in that: the method comprises the following steps:

1) excavating a base groove;

2) drilling a hole in the foundation trench, and inserting an inclined pile into the hole;

3) paving a foundation slab steel bar of the concrete foundation;

4) firmly connecting the inclined piles with the foundation balls; if the inclined pile is a hollow steel pipe, welding is adopted; if the inclined pile (5) is a reinforced concrete member, the anchor bars extend into the foundation ball;

5) inserting the label upright post into the upright post protecting wall, and fixing by adopting an anchoring bolt;

6) and pouring a concrete foundation of the sign, and covering soil on the upper part of the concrete foundation of the sign when the strength of the concrete foundation of the sign meets the design requirement.

9. The method of constructing a signage base as claimed in claim 8, wherein:

and 4) injecting cement paste or cement mortar into the foundation ball through the grouting hole, wherein the grouting pressure is controlled to be 3.5-5.0 MPa.

10. The method of constructing a signage base as claimed in claim 8, wherein:

and step 51) of arranging a foundation flange and/or a foundation stiffening rib at the root part of the upright post dado after the step 5).

Technical Field

The invention relates to the technical field of road engineering, in particular to a label foundation and a construction method thereof.

Background

In the current urban development situation of China, urban road side bands are generally narrow, particularly in areas with high wind speed, the size of the sign is usually large, and most signs in China adopt independent foundations at present. According to the specification requirements, in order to avoid tensile stress generated by the base substrate, the base scale is often large, and the width of the side sub-bands is not enough to meet the requirement of the width of the base of the sign, so that the base of the sign invades into the range of a roadway. Because the foundation of the traditional sign board is embedded deeply and the top surface is embedded shallowly, under the action of the later vehicle load, the sign board and the roadway part have differential settlement, so that the asphalt pavement has reflection cracks, and the pavement is damaged in advance.

Disclosure of Invention

Aiming at the defects and shortcomings in the prior art, the invention provides the label foundation and the construction method thereof. The hollow inclined pile is different from the traditional inclined pile, the inclination angle is larger, and an anchor pile machine is adopted as a construction machine; meanwhile, except that the label foundation is a cast-in-place structure, the project is of a prefabricated structure, so that the construction speed is high; and because the scale of the label foundation is smaller, the excavation depth is smaller, and the pipeline arrangement along the side sub-zone is facilitated.

In order to achieve the purpose, the label foundation at least comprises a cylindrical upright post protecting wall, wherein a foundation ball is arranged at the bottom of the upright post protecting wall; a plurality of inclined piles are uniformly distributed on the foundation ball.

Further, the device also comprises a concrete foundation wrapping the foundation ball.

Further, the base ball is hollow, grouting holes are formed in the hollow base ball, and slurry is injected into the hollow portion through the grouting holes.

Furthermore, the foundation ball and the inclined pile are hollow, and the hollow parts of the foundation ball and the inclined pile are communicated; the hollow foundation ball is provided with grouting holes, and the hollow part is injected with slurry through the grouting holes.

Furthermore, a foundation stiffening rib and/or a foundation flange plate are/is arranged outside the upright post retaining wall.

Furthermore, the included angle between the inclined pile and the horizontal plane is preferably controlled to be 30-45 degrees.

Furthermore, through holes are formed in the inclined pile body at intervals of a preset distance.

In order to achieve the purpose, the construction method of the label foundation comprises the following steps:

1) excavating a base groove;

2) drilling a hole in the foundation trench, and inserting an inclined pile into the hole;

3) paving a foundation slab steel bar of the concrete foundation;

4) firmly connecting the inclined piles with the foundation balls; if the inclined pile is a hollow steel pipe, welding is adopted; if the inclined pile (5) is a reinforced concrete member, the anchor bars extend into the foundation ball;

5) inserting the label upright post into the upright post protecting wall, and fixing by adopting an anchoring bolt;

6) and pouring a concrete foundation of the sign, and covering soil on the upper part of the concrete foundation of the sign when the strength of the concrete foundation of the sign meets the design requirement.

Further, step 41) is included after the step 4), the cement paste or the cement mortar is injected into the foundation ball through the grouting hole, and the grouting pressure is controlled to be 3.5-5.0 MPa.

Further, step 51) is included after step 5), and foundation flanges and/or foundation stiffening ribs are arranged at the root parts of the upright post dado.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the invention has simple structure, safety, reliability and low cost, fully utilizes the horizontal force (including horizontal tension and horizontal pressure) exerted by the inclined piles to share the horizontal load at the upper part of the label, and the label foundation only needs to meet the requirement of vertical load, so that the size of the foundation is smaller, the foundation does not need to extend into the range of a roadway, and the phenomenon of asphalt pavement damage caused by reflection cracks is avoided to the greatest extent. Meanwhile, due to the arrangement of the road pipeline, the pipeline is usually expected to be arranged in the side sub-belt from the perspective of later maintenance, and the pipeline cannot be normally arranged due to the occupation of the side sub-belt by the traditional label foundation; the sign foundation of the invention is embedded shallowly and has no conflict with the pipeline in the vertical relation, so the road pipeline can be arranged in the side branch zone, thereby avoiding the condition that the number of well covers on the roadway is large.

Drawings

FIG. 1 is a side elevational view of the base of the sign of the present invention;

fig. 2 is a top plan view of the base of the sign of the present invention.

In the figure: 1. a signage column; 2. a column protecting wall; 3. a base ball; 4. a label base; 5. hollow inclined piles; 6. grouting holes; 7. and (6) anchoring the bolt.

Detailed Description

The invention is further described with reference to the following figures and examples: