Integrated geotechnical bag slope protection system and assembly type construction method thereof

Abstract

The invention discloses an integrated geotechnical bag side slope protection system and an assembly type construction method thereof, relates to the technical field of side slope protection engineering, and aims to solve the problems that filling aggregates in traditional geotechnical bags are usually single, the stacking mode between the geotechnical bags is simple and direct, the integrity between bag bodies is poor, and the construction cost is high. The geotextile bag has the problems of low strength, easiness in breakage, difficulty in degradation and the like, and comprises a standard geotextile bag 1, a standard geotextile bag 2, filler and a connecting structure. The high-strength environment-friendly building material has good strength and environment-friendly performance. By means of the reasonably-designed connecting structure, firm connection of a plurality of geotechnical bags can be achieved, a continuous protective wall is formed, the phenomena of water and soil loss, erosion, landslide and the like are effectively prevented, the safety and stability of civil engineering are improved, meanwhile, green plants are planted on the upper layers of the geotechnical bags, pollution to the environment is avoided, and the requirements for environmental protection and attractiveness are met.

Description

Technical Field

[0001] The present invention relates to the technical field of slope protection engineering, and more specifically to an integrated geobag slope protection system and an assembly construction method thereof. Background Art

[0002] The capillary barrier system constructed by integrated geobags makes full use of the important role of capillary barriers in slope protection projects. The arrangement and combination of coarse / fine grain layers in geobags give full play to the capillary blocking effect to prevent rainwater from infiltrating, so it has good protection effect and economy. The geobags in traditional slope protection systems are often filled with a single coarse grain layer, which is prone to cracks under the influence of dry-wet cycles and thermal expansion and contraction, and its stability and durability are difficult to guarantee. At the same time, the filling aggregates in traditional geobags are often relatively single, and the stacking method between geobags is also relatively simple and direct, which leads to poor integrity between the bag bodies, and there are problems such as low strength, easy damage, and difficult degradation. This not only affects the quality and safety of the project, but also brings pressure to the environment.

[0003] In view of this, we propose an integrated geobag slope protection system and its assembled construction method. Summary of the invention

[0004] The purpose of the present invention is to provide an integrated geobag slope protection system and an assembled construction method thereof, aiming to provide a slope protection system that combines some geobags filled with soil particles with geogrids in a specific way to give full play to the capillary barrier effect. The system solves the problems of traditional geobag slope protection systems under the premise of taking into account safety, stability, greenness and environmental protection. The geobags in the protection system are integrated in production and assembled. The filling aggregates are recycled construction waste materials. The slope support can be achieved without adding any concrete. At the same time, the slope protection system also has good environmental protection performance. The application of construction waste eliminates the pollution that may be caused by concrete from the root. The surface of the slope protection system can be covered with organic soil to plant green plants. The roots of the green plants can obtain necessary water from the geobag system, which can not only purify the surrounding environment but also increase the aesthetics of the slope protection system through root reinforcement.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated geobag slope protection system, comprising a standard geobag 1, a standard geobag 2, a filler and a connection structure;

[0006] The standard geobag 1 and the standard geobag 2 are both rectangular structures and are made of high-strength polyester fiber materials. While having high tensile strength and durability, they also ensure a certain degree of water permeability. The standard geobag 1 and the standard geobag 2 are used to form a capillary barrier unit;

[0007] The filler is made of a mixture of one or more of organic soil, recycled coarse and fine asphalt aggregates, and is used to fill the standard geobag 1 and the standard geobag 2;

[0008] The connection structure is composed of one or more combinations of high-strength zippers, buckles, soil nails, anchor rods and geogrids, and is used to connect the standard geobag 1 and the standard geobag 2.

[0009] Preferably, the total length of the bottom surface of the standard geobag 1 is 1.5 m, the width is 0.6 m, and the height is 0.3 m, and the total length of the bottom surface of the standard geobag 2 is 1.5 m, the width is 0.3 m, and the height is 0.3 m.

[0010] Preferably, the capillary barrier unit is composed of four standard geobags 1 fully filled with fillers and two standard geobags 2 fully filled with fillers.

[0011] An assembled construction method applicable to any of the above-mentioned integrated geobag slope protection systems, the method comprising the following steps:

[0012] a. Select high-strength polyester fiber material as the material for making standard geobag 1 and standard geobag 2 to make standard geobag 1 and standard geobag 2;

[0013] b. One or more of the coarse and fine asphalt aggregates made of recycled organic soil and asphalt pavement gravel soil are mixed and filled into standard geobags 1 and 2 to form them, thereby constructing a capillary barrier unit;

[0014] c. Arrange the standard geobag 1 and the standard geobag 2 filled with fillers to form a capillary barrier unit, each capillary barrier unit is composed of two layers of standard geobag 1 and standard geobag 2 overlapped with each other;

[0015] d. The standard geobags 1 and 2 filled with fillers are sealed and arranged along the slope. The standard geobags 1 and 2 are arranged alternately. Four standard geobags 1 are arranged at the bottom layer, and three standard geobags 1 and two standard geobags 2 are arranged on the upper layer, wherein two standard geobags 2 are arranged on both sides and three standard geobags 1 are arranged in the middle, thereby forming a capillary barrier unit. Each capillary barrier unit is arranged in a progressive and hierarchical manner.

[0016] e. On the outermost side of the capillary barrier unit, organic soil is used to cover and fill it, thus constructing an organic soil layer that is consistent with the original angle of the slope.

[0017] Preferably, in the above step d, the first layer of the capillary barrier unit is composed of, from left to right, a standard geobag 1 filled with coarse aggregate, a standard geobag 2 filled with fine aggregate, and a standard geobag 1 filled with fine aggregate, and the second layer of the capillary barrier unit is composed of, from left to right, a standard geobag 1 filled with coarse aggregate, a standard geobag 1 filled with fine aggregate, and a standard geobag 2 filled with fine aggregate.

[0018] Preferably, in the above step d, the second layer of the capillary barrier unit is laid horizontally at 0.3 m to the right of the first layer, and stacked in this manner.

[0019] Preferably, at the top layer of each capillary barrier unit, the standard geobag 1 and the standard geobag 2 are fixed by a connecting structure, and the standard geobag 1 on the far right is not provided with a connecting structure. At the bottom layer of each capillary barrier unit, a connecting structure is used to fix and connect all the standard geobags 1 and the standard geobag 2 to ensure the overall stability of the capillary barrier unit.

[0020] Preferably, in the above step e, green plants with luxuriant root systems are evenly planted on the surface of the organic soil layer, and the water required for the growth of the green plants can be obtained from the capillary water layer in the lower fine particles.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Good integrity and convenient construction: Geogrids are used to partition the internal structure of the capillary barrier unit, and also serve as a connecting structure to connect multiple geobags to form a continuous protective wall. After production, geobags can be transported to the slopes that need to be reinforced for arrangement and installation. The construction is convenient and fast, which can effectively improve the project efficiency.

[0023] 2. Good environmental protection: The organic soil in the upper geobag is used to plant green vegetation, which can not only stabilize the upper structure, but also has the characteristics of green and beautiful appearance. The design of the capillary barrier allows plants to grow on it, which not only reduces the impact on the ecological environment, but also can be used in combination with plant protection methods to achieve drainage and anti-seepage, and reinforce the fine / coarse grain layer through plant roots. In addition, the transpiration of plants is also important for the recovery of the function of the capillary barrier after heavy rainfall.

[0024] 3. Excellent durability: The capillary barrier standard geobag unit is arranged in sequence and in turn by these two arrangement structures. This unique arrangement can maximize the capillary barrier effect of coarse and fine soil particles: rainwater can infiltrate and flow between the geobags filled with fine particles in each layer; and in the geobags filled with coarse particles in the bottom layer, the coarse particle aggregate forms a water-stop barrier with the help of capillary effect, preventing rainwater from eroding the slope, thereby forming a seepage along the slope. Rainwater on the high slope can be discharged from the high slope to the bottom of the slope through the capillary barrier structure formed by the geobag, which fundamentally eliminates the relevant hidden dangers and enhances the stability of the slope protection. This structural setting makes it difficult for the coarse particle layer to crack under the action of dry-wet cycles and thermal expansion and contraction, thus ensuring the stability and durability of the system.

[0025] 4. Effectively inhibit soil cracking: The coarse-grained layer in the geobag acts as a sand-interlayer, which affects the rising speed and height of capillary water, and can effectively reduce the risk of cracking of the slope soil layer below due to evaporation. At the same time, the large pores of the coarse-grained layer play a role in thermal insulation, further reducing soil cracks caused by thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front cross-sectional view of the geobag structure of the present invention;

[0027] Figure 2 It is a side cross-sectional view of the geobag structure of the present invention;

[0028] Figure 3 This is a front view of the capillary barrier unit in the present invention;

[0029] Figure 4 It is a side view of a standard geobag 1 in the present invention;

[0030] Figure 5 A top view of a fine barrier unit in the present invention;

[0031] Figure 6 The figure is a schematic diagram of a working state of the present invention. DETAILED DESCRIPTION

[0032] Embodiment 1

[0033] like Figure 1 As shown, the present invention relates to an integrated geobag slope protection system, comprising a standard geobag 1, a standard geobag 2, a filler and a connection structure;

[0034] The standard geobag 1 and the standard geobag 2 are both rectangular structures and are made of high-strength polyester fiber materials. While having high tensile strength and durability, they also ensure a certain degree of water permeability. The standard geobag 1 and the standard geobag 2 are used to form a capillary barrier unit;

[0035] The filler is made of one or more of organic soil, recycled coarse and fine asphalt aggregates, and is used to fill the standard geobag 1 and the standard geobag 2;

[0036] The connection structure is composed of one or more combinations of high-strength zippers, buckles, soil nails, anchor rods and geogrids, and is used to connect the standard geobag 1 and the standard geobag 2;

[0037] The total length of the bottom surface of the standard geobag 1 is 1.5m, the width is 0.6m, and the height is 0.3m. The total length of the bottom surface of the standard geobag 2 is 1.5m, the width is 0.3m, and the height is 0.3m.

[0038] The capillary barrier unit consists of four standard geobags 1 filled with filler and two standard geobags 2 filled with filler.

[0039] The construction waste is used as filling aggregate and placed in several standard geobags 1 with dimensions of 1.5 meters in length, 0.6 meters in width and 0.3 meters in height, and standard geobags 2 with dimensions of 1.5 meters in length, 0.3 meters in width and 0.3 meters in height. The standard geobags 1 and 2 are assembled and constructed. Two layers of overlapping standard geobags 1 and 2 are used to construct a capillary barrier unit. When viewed from the side, the bottom layer of geobags are, from left to right, standard geobag 1 filled with coarse aggregate, standard geobag 1 filled with fine aggregate and standard geobag 2 filled with fine aggregate; the upper layers are, from left to right, standard geobag 1 filled with coarse aggregate, standard geobag 2 filled with fine aggregate and standard geobag 1 filled with fine aggregate. These standard geobags are connected by geogrids. 1 and the standard geobag 2 are connected and fixed to complete the assembled construction of a capillary barrier unit, wherein the lower layer of the capillary barrier unit is laid horizontally at 0.3 meters to the right of the upper layer and stacked in this way. A total of 20 capillary barrier units are used to reinforce a slope with a height of 3 meters, a width of 6 meters and a slope of 45 degrees. The 20 capillary barrier units are divided into 4 columns, with a total of 5 capillary barrier units in each column, which are staggered and stacked at a horizontal interval of 0.3 meters. Geogrids are set between the geobags for reinforcement. Finally, the organic soil is evenly covered on the outermost side of the capillary barrier unit, and green plants are planted. The green plants stabilize the surface of the slope protection system with their developed root system and ensure the beauty of the appearance of the protection system.

[0040] Embodiment 2: This embodiment is different from Embodiment 1 in that a reinforcement method of staggered stacking of standard geobags 1 and standard geobags 2 in combination with geogrids is adopted;

[0041] In order to reinforce a slope with a length of 7.5 meters, a height of 4.8 meters and a slope of 45°, a reinforcement method of staggered stacking of standard geobags 1 and standard geobags 2 with geogrids was adopted. This method can maximize the capillary effect and thus obtain the optimal slope reinforcement solution. Two standard geobags 1 and one standard geobag 2 are stacked horizontally from the inside to the outside and reinforced with geogrids. The innermost standard geobags 1 and standard geobags 2 are filled with recycled asphalt coarse aggregate, and the outer standard geobags 1 and standard geobags 2 are filled with recycled asphalt fine aggregate. At a depth of 0.3 meters, a standard geobag 1 filled with recycled asphalt coarse aggregate, a standard geobag 2 filled with recycled asphalt fine aggregate, and a standard geobag 1 filled with recycled asphalt fine aggregate are stacked horizontally from the inside to the outside. A total of 16 layers of geobags are stacked in this way. These 48 geobags are regarded as a group of capillary barrier units, and five such geobag groups are set in the length direction of the slope to reinforce the slope. Finally, the surface of the geobags is covered with organic soil to construct a geobag slope protection system with a length of 7.5 meters, a height of 4.8 meters, a slope of 45° and applicable to the capillary barrier principle.

[0042] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An integrated geobag slope protection system, characterized in that: It includes a standard geobag 1, a standard geobag 2, a filler and a connection structure; The standard geobag 1 and the standard geobag 2 are both rectangular structures and are made of high-strength polyester fiber materials. While having high tensile strength and durability, they also ensure a certain degree of water permeability. The standard geobag 1 and the standard geobag 2 are used to form a capillary barrier unit; The filler is made of a mixture of one or more of organic soil, recycled coarse and fine asphalt aggregates, and is used to fill the standard geobag 1 and the standard geobag 2; The connection structure is composed of one or more combinations of high-strength zippers, buckles, soil nails, anchor rods and geogrids, and is used to connect the standard geobag 1 and the standard geobag 2.

2. The integrated geobag slope protection system according to claim 1, characterized in that: The total length of the bottom surface of the standard geobag 1 is 1.5 m, the width is 0.6 m, and the height is 0.3 m. The total length of the bottom surface of the standard geobag 2 is 1.5 m, the width is 0.3 m, and the height is 0.3 m.

3. The integrated geobag slope protection system according to claim 1, characterized in that: The capillary barrier unit is composed of four standard geobags 1 filled with fillers and two standard geobags 2 filled with fillers.

4. An assembled construction method applicable to an integrated geobag slope protection system as described in any one of claims 1 to 3, characterized in that: The method comprises the following steps: a. Select high-strength polyester fiber material as the material for making standard geobag 1 and standard geobag 2 to make standard geobag 1 and standard geobag 2; b. One or more of the coarse and fine asphalt aggregates made of recycled organic soil and asphalt pavement gravel soil are mixed and filled into standard geobags 1 and 2 to form them, thereby constructing a capillary barrier unit; c. Arrange the standard geobag 1 and the standard geobag 2 filled with fillers to form a capillary barrier unit, each capillary barrier unit is composed of two layers of standard geobag 1 and standard geobag 2 overlapped with each other; d. The standard geobags 1 and 2 filled with fillers are sealed and arranged along the slope. The standard geobags 1 and 2 are arranged alternately. Four standard geobags 1 are arranged at the bottom layer, and three standard geobags 1 and two standard geobags 2 are arranged on the upper layer, wherein two standard geobags 2 are arranged on both sides and three standard geobags 1 are arranged in the middle, thereby forming a capillary barrier unit. Each capillary barrier unit is arranged in a progressive and hierarchical manner. e. On the outermost side of the capillary barrier unit, organic soil is used to cover and fill it, thus constructing an organic soil layer that is consistent with the original angle of the slope.

5. The assembly construction method of an integrated geobag slope protection system according to claim 4, characterized in that: In the above step d, the first layer of the capillary barrier unit is composed of, from left to right, a standard geobag 1 filled with coarse aggregate, a standard geobag 2 filled with fine aggregate, and a standard geobag 1 filled with fine aggregate, and the second layer of the capillary barrier unit is composed of, from left to right, a standard geobag 1 filled with coarse aggregate, a standard geobag 1 filled with fine aggregate, and a standard geobag 2 filled with fine aggregate.

6. The assembly construction method of an integrated geobag slope protection system according to claim 5, characterized in that: In the above step d, the second layer of the capillary barrier unit is laid horizontally at 0.3 m to the right of the first layer, and stacked in this way.

7. The assembly construction method of an integrated geobag slope protection system according to claim 4, characterized in that: At the top layer of each capillary barrier unit, standard geobag 1 and standard geobag 2 are fixed by a connecting structure. The standard geobag 1 on the far right is not provided with a connecting structure. At the bottom layer of each capillary barrier unit, a connecting structure is used to fix and connect all standard geobags 1 and standard geobag 2 to ensure the overall stability of the capillary barrier unit.

8. The assembly construction method of an integrated geobag slope protection system according to claim 4, characterized in that: In the above step e, green plants with luxuriant root systems are evenly planted on the surface of the organic soil layer, and the water required for the growth of the green plants can be obtained from the capillary water layer in the fine particles in the lower layer.

Images