Bagged filler and construction method thereof

Abstract

The invention relates to the technical field of road maintenance, in particular to bagged filler and a construction method thereof.The bagged filler comprises a multi-section filler bag and filler, each section of filler bag of the multi-section filler bag is internally provided with a fillable sealing cavity, and every two adjacent sealing cavities are not communicated with each other; the multi-section filler bag comprises a filled filler bag and an unfilled filler bag, the filled filler bag is filled with filler and sealed in vacuum, and the unfilled filler bag is vacuumized; the unfilled filler bag is arranged between the two filled filler bags, so that the filled filler bag of an adjacent multi-section filler bag can be embedded between the two filled filler bags of another multi-section filler bag. And the adjacent multi-section filler bags are quickly assembled and fixed through embedding and lapping, so that the first-aid repair construction process is simple, convenient and quick. The roadbed body and the side slope body after first-aid repair have good strength, deformation resistance and high stability. The emergency repair time is short, the construction efficiency is high, and the construction cost of the emergency repair project is low.

Description

Technical Field

[0001] The invention relates to the technical field of road maintenance, and in particular to a bagged filler and a construction method thereof. Background Art

[0002] With the rapid development of economy, the traffic volume is increasing and road problems are frequent, especially in some core transportation hubs, where the traffic volume is huge during holidays. Therefore, it is very necessary to implement rapid temporary disposal of damaged roads and restore traffic in time.

[0003] The existing road repair materials are special and need to be specially produced. Moreover, they need a long time to solidify after backfilling. The backfilling construction has high requirements and is difficult to construct. After the construction is completed, the road cannot be opened to traffic immediately, which fails to achieve the goal of rapid repair and opening, and the repair efficiency is low.

[0004] Therefore, there is an urgent need for a bagged filler for road repair, which can meet the roadbed strength requirements and be easy and fast to construct, so that the road can be opened to traffic immediately after construction. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a bagged filler and a construction method thereof, which solves the technical problems of high construction requirements of existing road repair materials and long waiting time for solidification after backfilling.

[0007] (II) Technical solution

[0008] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0009] A bagged filler comprises: a multi-section filler bag and a filler, wherein each section of the multi-section filler bag has a fillable sealed cavity, and adjacent sealed cavities are not connected to each other;

[0010] The multi-section stuffing bag comprises a filled stuffing bag and an unfilled stuffing bag, wherein the filled stuffing bag is filled with stuffing and vacuum-sealed, and the unfilled stuffing bag is vacuum-evacuated;

[0011] The unfilled stuffing bag is arranged between two filled stuffing bags so that the filled stuffing bag of an adjacent multi-segment stuffing bag can be inserted between the two filled stuffing bags of another multi-segment stuffing bag.

[0012] The filled stuffing bag of an adjacent multi-segment stuffing bag is placed on top of the unfilled stuffing bag of another multi-segment stuffing bag.

[0013] The multi-section stuffing bag has at least three sections. The stuffing bags at both ends are filled with stuffing and vacuum-sealed, and the middle stuffing bag is evacuated.

[0014] The multi-section stuffing bag is made of polyethylene and polypropylene composite material with a pressure of 5MPa.

[0015] The vacuum pressure inside the unfilled stuffing bag is -100 kPa.

[0016] A construction method for bagged filler, applied to bagged filler, comprises the following steps:

[0017] Step 1: Measure the volume of the damaged area of ​​the road or slope to be repaired and determine the quantity of bagged fill required;

[0018] Step 2: Repair the damaged area of ​​the road or slope to be repaired into a regular shape and level the bottom of the damaged area;

[0019] Step 3: Place bagged fillers in the damaged area of ​​the road surface or slope to be repaired, with the filled filler bag of a multi-section filler bag inserted between two filled filler bags of another adjacent multi-section filler bag, and the filled filler bag placed on top of the unfilled filler bag.

[0020] In step 3, if a three-section filling bag is used to fill the damaged area, the filling bags at both ends of the three-section filling bag of the first layer are filled, and the filling bag in the middle section is evacuated; each section of the three-section filling bag of the second layer and above is filled;

[0021] The three-section stuffing bags of the first layer are laid sequentially from one side to the other; the middle section of each three-section stuffing bag of the second layer and above is interlocked with the middle section of the next layer, and are stacked layer by layer from bottom to top according to the height of the damaged area.

[0022] In step 3, if a three-section filling bag is used to fill the damaged area, the filling bags at both ends of each layer of the three-section filling bag are filled, and the middle section filling bag is evacuated;

[0023] The filling bag filled at the end of a three-section filling bag adjacent to the left and right is interlocked with the middle section filling bag of another three-section filling bag, and they are interlocked and overlapped in sequence from one side to the other, and are stacked layer by layer from bottom to top according to the height of the damaged area.

[0024] In step three, if a four-section filling bag is used to fill the damaged area, the two middle sections of the four-section filling bag are vacuumed, and the two end sections are filled. The filling bags filled at the ends of the four-section filling bags adjacent to the left and right are interlocked with the filling belt of the vacuumed middle section of another four-section filling bag, and they are interlocked and overlapped in sequence from one end to the other, and stacked layer by layer from bottom to top according to the height of the area to be repaired.

[0025] Also includes:

[0026] Step 4: Trim the filled area to fit it with the original road surface or slope.

[0027] (III) Beneficial effects

[0028] The beneficial effects of the present invention are as follows: the present invention provides a bagged filler, which adopts a multi-section high-strength vacuum filler bag. The filler can be obtained locally on site, and can be applicable to a variety of filler materials. Adjacent multi-section filler bags can be quickly assembled and fixed by interlocking and overlapping, and the emergency repair construction process is simple and fast, and no special equipment and machinery are required. The roadbed and slope bodies after emergency repair have good strength, deformation resistance and high stability. After the emergency repair construction is completed, the road can be opened to traffic immediately, the emergency repair time is short, the construction efficiency is high, and the emergency repair project cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of a single-stage stuffing bag;

[0030] Figure 2 A schematic diagram of the structure of a three-section stuffing bag with a vacuum pumped in the middle section;

[0031] Figure 3 A schematic diagram of the structure of a three-section stuffing bag in which all three sections are filled with stuffing;

[0032] Figure 4 A schematic diagram of the structure of a four-section stuffing bag with a vacuum pumped in the middle section;

[0033] Figure 5 It is a top view of a three-section stuffing bag;

[0034] Figure 6 It is a top view of a four-section stuffing bag;

[0035] Figure 7 It is a schematic diagram of the stacking structure of three-stage stuffing bags;

[0036] Figure 8 It is a schematic diagram of the overlapping of four-section stuffing bags;

[0037] Fig. 9 It is a schematic diagram of the overlapping connection between a single-stage stuffing bag and a four-stage stuffing bag;

[0038] Fig.10 Schematic diagram of the overlapping of a single-stage stuffing bag, a three-stage stuffing bag and a four-stage stuffing bag;

[0039] Fig.11 Schematic diagram of the three-section stuffing bag interlocking and overlapping;

[0040] Fig.12 Schematic diagram of the overlapping connection between a single-stage stuffing bag and a three-stage stuffing bag;

[0041] Fig.13 A schematic diagram of the structure of Example 1;

[0042] Fig.14 A schematic diagram of the structure of Example 2;

[0043] Fig.15 Model diagram of consolidation-drained triaxial simulation test;

[0044] Fig.16 Stress curve of silt sand;

[0045] Fig.17 Strain curve graph of silt sand;

[0046] Fig.18 Mohr circle strength envelope diagram of silt sand;

[0047] Fig.19 Comparison chart of strength improvement of silt sand;

[0048] Fig. 20 Stress curve of loess;

[0049] Fig.21 Strain curve diagram of loess;

[0050] Fig. 22 Mohr circle strength envelope diagram of loess;

[0051] Fig.23 Comparison chart of loess strength improvement;

[0052] Fig.24 Stress curve diagram of clay;

[0053] Fig.25 Strain curve diagram of clay;

[0054] Fig.26 Mohr circle strength envelope diagram of clay;

[0055] Fig. 27 Comparison chart of clay strength improvement;

[0056] Fig.28 Overall stability analysis diagram of the original loess slope;

[0057] Fig.29 Overall stability analysis diagram of the original loess slope;

[0058] Fig.30 Finite element deformation analysis diagram of the original road pavement;

[0059] Fig.31 Finite element deformation analysis diagram of the road pavement after emergency repair.

[0060] [Description of Reference Numerals]

[0061] 1: multi-section filling bag; 11: single-section filling bag; 12: three-section filling bag; 13: four-section filling bag; 14: filled filling bag; 15: unfilled filling bag; 2: road surface; 3: slope. DETAILED DESCRIPTION

[0062] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. Fig.13 The orientation is used as a reference.

[0063] At present, the existing road repair materials are special and need to be specially produced. After backfilling, it takes a long time to solidify. The existing road repair materials have high backfilling construction requirements and are difficult to construct. After the construction is completed, the road cannot be opened to traffic immediately, and the goal of rapid repair and opening is not achieved, and the repair efficiency is low.

[0064] Aiming at the defects in existing road repair materials and construction technologies, the purpose of the present invention is to provide a filler for road repair and a construction method thereof. The method comprehensively considers the convenience and efficiency of road repair, and the filling material can be obtained on site (coarse-grained soil, fine-grained soil, and landslide mixture of the original roadbed can all be used); the road repair construction is convenient and fast, and no special backfilling and rolling equipment is required; the roadbed after filling has high strength and strong deformation resistance, and can withstand large upper loads; the backfill body is wear-resistant, corrosion-resistant, and not easy to age; and the vacuum bag filler is easy to produce, low-cost, and has significant social benefits.

[0065] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0066] like Figure 1-12As shown, the present invention provides a bagged filler, which is used in emergency situations such as road interruption, road surface and slope collapse caused by geological disasters, extreme climate and sudden disasters. The filler for road repair includes: a multi-segment filler bag 1 and a filler. The multi-segment filler bag 1 includes a plurality of continuously arranged filler bags, each of which is provided with a fillable sealed cavity, and adjacent sealed cavities are not connected to each other. The filler bag includes a filled filler bag 14 and an unfilled filler bag 15. The filler is filled in the sealed cavity and vacuum-sealed to form a filled filler bag 14. The unfilled filler bag 15 is vacuumed inside. The unfilled filler bag 15 is arranged between two filled filler bags 14, so that the filled filler bag 14 of an adjacent multi-segment filler bag 1 can be embedded between the two filled filler bags 14 of another multi-segment filler bag 1, that is, the filled filler bag 14 is placed on the unfilled filler bag 15.

[0067] By adopting multi-stage high-strength vacuum bag filler, a variety of filling materials can be used, and the filling materials can be obtained on site. Adjacent multi-stage filling bags 1 can be quickly assembled and fixed by overlapping, and the emergency repair construction process is simple and fast, and no special equipment and machinery are required. The roadbed and slope body after emergency repair have good strength, deformation resistance and high stability. After the emergency repair construction is completed, the road can be opened to traffic immediately, the emergency repair time is short, the construction efficiency is high, and the emergency repair project cost is low.

[0068] A multi-segment filling bag 1, each segment of the multi-segment filling bag 1 has the same size, and the multi-segment filling bag 1 is made of polyethylene and polypropylene synthetic materials with a pressure of 5MPa. The filling bag includes a filled filling bag 14 and an unfilled filling bag 15, and the filled filling bag 14 is filled with fillers and vacuum-sealed, and the sealing is in the form of hot pressing. After the filling bag is filled with fillers, the size of each segment is 50cm long, 40cm wide, and 15cm high. The unfilled filling bag 15 is evacuated inside, and the vacuum pressure is a standard atmospheric negative pressure, that is, -100kPa. By arranging a vacuum-type filling bag in the middle segment of the multi-segment filling bag 1, it can be interlocked with the adjacent filled filling bag, thereby improving the connection strength between the multi-segment filling bags 1.

[0069] The filler filled in the multi-section filler bag 1 is not limited to a specific material, and can be made from local materials according to the on-site conditions, thereby improving the flexibility of the use of the filler.

[0070] The present invention provides a construction method of bagged filler, comprising the following steps:

[0071] Step 1: Measure the volume of the damaged area of ​​the road surface 2 or slope 3 to be repaired to determine the amount of bagged filler required;

[0072] Step 2: trimming the damaged area of ​​the road surface 2 or slope 3 to be repaired into a regular shape, and leveling the bottom of the damaged area;

[0073] Step three: place a multi-segment filling bag 1 in the damaged area of ​​the road surface 2 or slope 3 to be repaired, and the filled filling bags 14 of one multi-segment filling bag 1 are embedded between the two filled filling bags 14 of another adjacent multi-segment filling bag 1.

[0074] Step 4: Trim the filled area to fit it with the original road surface 2 or slope 3.

[0075] The multi-section filling bag 1 includes a three-section filling bag 12 and a four-section filling bag 13, wherein the middle section of the three-section filling bag 12 is vacuumed, and the middle two sections of the four-section filling bag 13 are vacuumed. The dimensions of each section of the multi-section filling bag 1 are the same, but when filling, the filling conditions can be adjusted according to the use conditions in order to make the upper and lower layers of the filling bag fit tightly. When splicing the multi-section filling bag 1, a part can be supplemented by a single-section filling bag 11.

[0076] In step three, if a three-section filling bag 12 is used to fill the damaged area, the filling bags at both ends of the first layer of three-section filling bags 12 are filled, and the middle section filling bag is vacuumed; the three sections of the filling bags of the second layer and above are all filled, but the filling bags are not connected to each other. The middle section of each layer of three-section filling bags 12 of the second layer and above is embedded with the middle section of the next layer, for example, the middle section of the three-section filling bag 12 of the second layer is embedded in the vacuumed middle section of the three-section filling bag 12 of the first layer, and they are stacked layer by layer from bottom to top, and so on. Alternatively, the three-section filling bag 12 can also vacuum all the filling bags in the middle section, and the filling bag 14 filled at the end of a three-section filling bag 12 adjacent to the left and right is embedded with the vacuumed filling bag in the middle section, and they are embedded and overlapped in sequence from one side to the other, and so on, and they are stacked layer by layer from bottom to top according to the height of the area to be repaired.

[0077] In step 3, if a four-section filling bag 13 is used to fill the damaged area, the middle two sections of the four-section filling bag 13 are evacuated, and the two sections of the end filling bags are filled. The filling bag 14 filled at the end of a four-section filling bag 13 adjacent to the left and right is embedded with the filling belt of the vacuumed middle section of another four-section filling bag 13, and they are embedded and overlapped from one side to the other side, and so on, and they are stacked layer by layer from bottom to top according to the height of the area to be repaired. In order to make the overlap firm, the amount of filler can be appropriately reduced.

[0078] The construction method of fillers for road repair provided by the present invention comprises the following steps: vacuumizing the filler bags or vacuum-sealing the filler bags according to construction requirements, splicing the filler bags in the road surface 2 or slope 3 area to be repaired, and interlocking the upper and lower filler bags or the left and right adjacent filler bags through the reserved vacuumized filler bag area, so that the upper and lower filler bags form a whole, thereby achieving a reinforcement effect.

[0079] Example 1

[0080] The above construction method was used to repair a road slope 3. Due to long-term heavy rain and continuous traffic of heavy vehicles, a damaged area with a width of 1.8m and a height of 1.8m appeared on the slope 3 of a certain road section, affecting the stability of the road structure. In order not to affect normal traffic, emergency repairs need to be carried out in time. The specific implementation steps are as follows:

[0081] Step 1: Preliminary observation of the damaged boundary of slope 3, defining the boundary line with stakes, and then defining the damaged area by spreading lime to calculate the amount of filler required;

[0082] Step 2: Use a shovel to level the facade along the boundary line, and manually level the bottom surface;

[0083] Step 3: Move the processed bagged filler to the area to be repaired, and lay the filler bags from the bottom to the top, so that the upper and lower layers of the filler bags fit together and overlap, covering the entire area to be repaired;

[0084] The bagged filler adopts a three-section filler bag 12, and the three-section filler bag 12 is filled with the soil of the original slope 3. The three-section filler bag 12 includes a three-section filler bag 12 with three sections filled with fillers, and a three-section filler bag 12 with fillers at both ends and vacuumed in the middle. The filler bag with vacuumed middle section can be interlocked with the filler bag filled with fillers. The three sections of the three-section filler bag 12 are the same size, and when the middle section is filled, the filler amount is slightly smaller than the other two sections, in order to fit with the original slope 3.

[0085] During laying, the filling bags at both ends of the first layer of three-stage filling bags 12 are filled, and the middle section filling bag is vacuumed; the three sections of the filling bags of the second layer and above are all filled, but the filling bags are not connected to each other. The middle section of each three-stage filling bag 12 of the second layer and above is embedded with the middle section of the next layer, for example, the middle section of the three-stage filling bag 12 of the second layer is embedded in the vacuumed middle section of the three-stage filling bag 12 of the first layer, and the layers are stacked from bottom to top, and so on.

[0086] Step 4: After all bagged fillers are laid, the emergency slope 3 is simply trimmed manually, and the road is open to traffic after the trimming is completed.

[0087] Compared with conventional emergency repair methods, the above construction method is simple to construct, easy to obtain materials, has high strength in the emergency repair area, greatly improves work efficiency, and will not affect surrounding roads. It has significant social benefits and is suitable for rapid emergency repair construction of damaged roads.

[0088] Example 2

[0089] The above construction method was used to repair a road surface 2. Due to uneven roadbed filling and insufficient compaction, a collapsed area with a length of 1.2m, a width of 7.5m and a depth of 45cm appeared on the surface of a certain section of the road, which seriously affected the operation of the road. In order to restore traffic in time, emergency repairs must be carried out in time. The specific implementation steps are as follows:

[0090] The filling bags used are filled with soil from around the road.

[0091] Step 1: Preliminarily observe the damaged boundary of the road, enclose it with a cordon, then determine the damaged area by spreading lime and calculate the amount of bag fill required;

[0092] Step 2: Use a shovel to level the facade along the boundary line, and manually level the bottom surface;

[0093] Step 3: Move the processed high-strength bagged filler to the area to be repaired, and lay the filler bags from the bottom from left to right and from bottom to top, so that the left and right filler bags fit together and overlap, and stack them layer by layer from bottom to top until the entire area to be repaired is covered;

[0094] The bagged filler adopts a four-stage type, that is, the middle two-stage filler bags are vacuumed. The four-stage size of the four-stage filler bag 13 is the same, and when filling the two ends, the filler amount is slightly smaller than the standard size, in order to fit tightly when overlapping each other. The filler bag is filled with soil around the emergency repair site.

[0095] When laying, the first layer of bagged stuffing is laid in sequence, end to end, with the filling belts at the middle two ends being in vacuum form. When laying the second layer, the filling bags at the two ends of the second layer of bagged stuffing are respectively embedded in the vacuumized sections of the two adjacent bagged stuffings of the first layer, and the two filled filling bags 14 at the first joint of the bagged stuffing of the first layer are embedded in the middle section of the second layer of bagged stuffing, that is, embedded in the two vacuumized sections in the middle of the second layer of bagged stuffing, so that the upper and lower layers of bagged stuffing are interlocked. When splicing four-section bagged stuffing, single-section filling bags 11 can be used to supplement them locally.

[0096] The four-stage high-strength bagged filler is vacuumed and hot-pressed and overlapped in the collapsed area on the surface of the road to be repaired. The filler bags are interlocked with each other through reserved empty bag areas, so that the left and right filler bags are connected to form a whole.

[0097] Step 4: After all bagged fillers are laid, the emergency repair road surface 2 is simply repaired manually, and the road can be opened to traffic after the repair is completed.

[0098] Compared with conventional repair methods, the above construction method is simple to construct, easy to obtain materials, high strength in the repair area, strong anti-deformation ability, greatly improved work efficiency, and will not affect surrounding roads. It has significant social benefits and is suitable for rapid repair construction of damaged roads.

[0099] Example 3

[0100] In order to verify the reliability of the present invention, the following three bagged fillers filled with different fillers were subjected to strength analysis with and without vacuuming, and the selected parameters are shown in Table 1.

[0101] Table 1 Parameters

[0102]

[0103] like Fig.15 As shown in Figure 1, according to the Mohr-Coulomb strength criterion, the consolidation and drainage triaxial simulation test of the bagged fill was carried out by finite element software. The model test size is a cylinder with a diameter of 39.8 mm and a height of 80 mm. Different confining pressures were selected for triaxial tests. The stress-strain curve of the filler (1) is shown in Figure 1. Figure 16-17 , the comparison between the Mohr circle strength envelope and the strength improvement is Figure 18-19 The stress-strain curve of filler (2) is as follows: Figure 20-21 , the comparison between the Mohr circle strength envelope and the strength improvement is Figure 22-23 The stress-strain curve of filler (3) is as follows: Figure 24-25 , the comparison between the Mohr circle strength envelope and the strength improvement is Figure 26-27 .

[0104] Analysis of the above simulation results shows that after vacuuming, the strength and deformation resistance of the bagged filler are greatly improved. The comparison of shear strength indicators is shown in Table 2.

[0105] Table 2 Comparison table

[0106]

[0107] The overall stability of the slope 3 after the emergency repair in Example 1 was verified using finite element software, and the initial slope 3 model and the slope 3 model after the emergency repair were established. The dangerous sliding surface and safety factor of the slope 3 area were analyzed respectively, as shown in FIG. Figure 28-29 shown.

[0108] By analyzing the safety factor of the original slope 3 of 1.376 and the safety factor of the replaced slope 3 of 2.323, it can be seen from the comparison of the safety factors that the overall stability of the slope 3 after emergency repair is improved compared with the original slope 3, which verifies the reliability of the present invention.

[0109] Similarly, the anti-deformation capacity of the road surface 2 after emergency repair in Example 2 is analyzed by finite element software, and the original road model and the road model after emergency repair are established, and the deformation of the road surface 2 in the Y direction is analyzed respectively, as shown in FIG. Figure 30-31 shown.

[0110] By analyzing the vertical displacement of the original road and the vertical displacement of the road after emergency repair, and comparing the deformation, it can be seen that the anti-deformation ability of the road surface 2 after emergency repair is greatly improved compared with the original road surface 2, which verifies the reliability of the present invention.

[0111] Conclusion: According to the results of the triaxial test, it can be seen that after the bagged filler is vacuumed, its strength and deformation resistance are significantly improved compared with those without vacuuming. Among them, for silt sand with low cohesion, the strength is increased by 1.5 to 3 times. From the slope stability analysis results, it can be seen that the stability coefficient of slope 3 after emergency repair is increased to 1.5 times that of the time of destruction, and it has good overall stability; from the road deformation resistance analysis, it can be seen that the road surface 2 after the three-layer bagged filler is replaced has a stronger deformation resistance than the original road surface 2, and its deformation resistance is increased to 10 times that of the original structure. The above numerical simulation examples verify the feasibility of the present invention.

[0112] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0113] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0114] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0115] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bagged filler, characterized in that: include: A multi-section filling bag (1) and a filling material, wherein each section of the multi-section filling bag (1) has a fillable sealed cavity, and adjacent sealed cavities are not connected to each other; The multi-stage filling bag (1) comprises a filled filling bag (14) and an unfilled filling bag (15), wherein the filled filling bag (14) is filled with a filling material and is vacuum-sealed, and the unfilled filling bag (15) is vacuum-evacuated. An unfilled stuffing bag (15) is arranged between two filled stuffing bags (14) so ​​that a filled stuffing bag (14) of an adjacent multi-segment stuffing bag (1) can be inserted between two filled stuffing bags (14) of another multi-segment stuffing bag (1).

2. The bagged filler according to claim 1, characterized in that: The filled stuffing bag (14) of an adjacent multi-segment stuffing bag (1) is placed on top of the unfilled stuffing bag (15) of another multi-segment stuffing bag (1).

3. The bagged filler according to claim 1, characterized in that: The multi-section filling bag (1) has at least three sections, the filling bags at both ends are filled with filling materials and vacuum-sealed, and the filling bag in the middle is vacuumed.

4. The bagged filler according to claim 1, characterized in that: The multi-section filling bag (1) is made of polyethylene and polypropylene synthetic material, and has a pressure strength of 5 MPa.

5. The bagged filler according to claim 1, characterized in that: The internal vacuum pressure of the unfilled stuffing bag (15) is -100 kPa.

6. A method for constructing bagged filler, applied to the bagged filler according to any one of claims 1 to 5, comprising the following steps: Step 1: Measure the volume of the damaged area of ​​the road surface (2) or slope (3) to be repaired, and determine the amount of bagged fill required; Step 2: trimming the damaged area of ​​the road surface (2) or slope (3) to be repaired into a regular shape, and leveling the bottom of the damaged area; Step 3: Place bagged fillers on the damaged area of ​​the road surface (2) or slope (3) to be repaired, wherein the filled filler bag (14) of the multi-segment filler bag (1) is inserted between two filled filler bags (14) of another adjacent multi-segment filler bag (1), and the filled filler bag (14) is placed on top of the unfilled filler bag (15).

7. The construction method of bagged filler according to claim 6, characterized in that: In step 3, if a three-section filling bag (12) is used to fill the damaged area, the filling bags at both ends of the first layer of three-section filling bags (12) are filled, and the middle section filling bag is evacuated; each section of the second layer and above three-section filling bags (12) is filled; The three-section filling bags (12) of the first layer are laid in sequence from one side to the other side; the middle section of each three-section filling bag (12) of the second layer and above is embedded with the middle section of the next layer, and they are stacked layer by layer from bottom to top according to the height of the damaged area.

8. The construction method of bagged filler according to claim 6, characterized in that: In step 3, if a three-section filling bag (12) is used to fill the damaged area, the filling bags at both ends of each layer of the three-section filling bag (12) are filled, and the filling bag in the middle section is evacuated; The filling bag (14) filled at the end of a three-section filling bag (12) adjacent to the left and right is embedded with the middle section filling bag of another three-section filling bag (12), and is sequentially embedded and overlapped from one side to the other side, and is stacked layer by layer from bottom to top according to the height of the damaged area.

9. The construction method of bagged filler according to claim 6, characterized in that: In step three, if a four-section filling bag (13) is used to fill the damaged area, the two middle sections of the four-section filling bag (13) are evacuated, and the two end sections are filled. The filling bag (14) filled at the end of a four-section filling bag (13) adjacent to the left and right is interlocked with the filling belt of the vacuumed middle section of another four-section filling bag (13), and they are interlocked and overlapped in sequence from one end to the other end, and are stacked layer by layer from bottom to top according to the height of the area to be repaired.

10. The construction method of bagged filler according to claim 6, characterized in that: Also includes: Step 4: trim the filled area to fit it with the original road surface (2) or slope (3).

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