CN211285486U - Geogrid composite soft mattress - Google Patents

Abstract

The utility model relates to a civil engineering technical field discloses a compound software row of geogrid, is made up by geogrid layer, shock resistance anti-aging buffer protective layer and geotechnological cloth inverted filter wholly and forms, shock resistance anti-aging buffer protective layer sets up between geogrid and geotechnological cloth inverted filter, the metalling in bags has been laid to geogrid's upper surface. The utility model discloses it is whole to jointly process into with the software row with geogrid for can spread row in the lump between software row and the geogrid, it is big to overcome the loss that the software row laid alone and exists, shortcomings such as quality control is difficult, and reduced and spread row construction process, improve the efficiency of construction.

Description

Geogrid composite soft mattress

Technical Field

The utility model relates to a civil engineering technical field, especially a compound software row of geogrid.

Background

The traditional laying technology is that soft mattress and geogrid are laid respectively, the soft mattress is laid firstly, and then the geogrid is laid, and the following problems can exist:

1) the loss of the arranging body is large, and the arranging quality is difficult to control. The body row structure is mostly anti-aging buffer protection layer + filament acupuncture geotextile structure, and this structure overall rigidity is poor, receives rivers effect skew distance big during the construction, and the shrinkage is big (the regional shrinkage of part reaches 6m), and the software arranges the consumption about big, is difficult to control the overlap joint volume, and the row's of laying quality is also difficult for obtaining guaranteeing. In addition, the strength of the soft raft cannot bear the ballast weight of the raft body, and longitudinal reinforcing strips need to be arranged.

2) The operation time is short, and the ship utilization rate is low. Because the software row rigidity is poor, the construction degree of difficulty is big and inefficiency, for example: the high-level tide leveling time of the Dongynggang port is about 1h, the low-level tide leveling time is 30-40 min, only the laying construction can be carried out at the high-level tide, the utilization rate of laying ships is low, and the cost of ship machines is high.

3) The construction strength is high, and the safety risk of ship cross operation is high. If the foundation is a breakwater project and the total length is long, if the geogrid and the soft body row are laid separately, the total number of the blocks to be laid is large, the construction period is limited, the number of the blocks to be laid per day is more limited, the construction strength is high, and the laying ship needs to be added for simultaneous construction, so that the construction cost is increased, the ship is operated in a crossed mode, and the safety risk is high.

SUMMERY OF THE UTILITY MODEL

In order to solve one of the above technical problems, the utility model provides a compound software row of geogrid combines together software row and geogrid and carries out whole laying process, and intensity is high, and bearing capacity is strong, and it is big to overcome the software row and lay the loss that exists alone, shortcomings such as quality control is difficult.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a geogrid composite software row, is made up by geogrid layer, shock resistance anti-aging buffer protective layer and geotechnological cloth inverted filter wholly and forms, shock resistance anti-aging buffer protective layer sets up between geogrid layer and geotechnological cloth inverted filter, the upper surface on geogrid layer has laid the metalling in bags.

For further improvement of the scheme, the bagged gravel layer is composed of a plurality of single bagged gravel, the ballast density of the single bagged gravel at the head and tail parts of the geogrid layer is 1 bag/0.5 m, and the ballast density of the single bagged gravel at other positions of the geogrid layer is 1 bag/2 m.

For further improvement of the scheme, the weight of the single-bag bagged gravel is 25 kg.

For further improvement of the scheme, the interval between the sewing threads integrally sewn by the geogrid layer, the impact-resistant anti-aging buffer protection layer and the geotextile reverse filter layer is 0.25 m.

For the further improvement of the scheme, the edge of the elastic piece is uniformly provided with the eyelet.

For the further improvement of the scheme, the helve buttons are connected in a binding mode through a high-strength binding belt.

For a further improvement of the scheme, the longitudinal and transverse intervals of the helve buttons are 500 m.

For further improvement of the scheme, the geogrid layer is formed by biaxially stretching polyester filaments into GSJ 300.

The utility model has the advantages that:

1. the utility model combines the soft body row and the geogrid to be processed into a whole, so that the soft body row and the geogrid can be laid together, the defects of large loss, difficult quality control and the like caused by independently laying the soft body row are overcome, the laying construction procedures are reduced, and the construction efficiency is improved;

2. the utility model combines the geogrid and the soft row to form the composite soft row, thereby improving the rigidity of the soft row, and the laying construction can be carried out during the high and low tide advection, thereby improving the construction efficiency;

3. the utility model adopts the combination of bagged gravel ballast and composite soft row, reduces the laying ship, improves the laying efficiency, and can realize quick anchoring and wind-avoiding return port when the laying ship meets extreme weather in the laying process, thereby reducing the safety risk;

4. the utility model discloses a rubble ballast mode in bags can solve the problem of freezing winter, and laying time is short, satisfies the requirement of laying of compound software row, and the ballast mode is nimble, can increase ballast quantity according to the requirement of laying of compound software row.

Drawings

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

FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a head or tail row of bagged rubble ballast diagram of a preferred embodiment of the present invention;

fig. 3 is a diagram of the ballast of bagged crushed stones in the middle of a preferred embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 3 together, a preferred embodiment is a geogrid composite soft body row, which is integrally sewn by a geogrid layer 1, an impact-resistant anti-aging buffer protection layer 2 and a geotextile reverse filter layer 3, wherein the impact-resistant anti-aging buffer protection layer 2 is arranged between the geogrid layer 1 and the geotextile reverse filter layer 3, the geogrid and the soft body row are connected into an integral structure and are tightly connected, the geogrid and the soft body row are not easily separated from each other in the laying process, the strength and the rigidity of the soft body row are improved, the defects of large loss, difficult quality control and the like in the independent laying of the soft body row are overcome, the laying process is reduced, and the construction efficiency is improved.

The geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reversed filter layer 3 are sewn together through the following steps:

1) cutting the geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reversed filter layer 3 according to different section sizes and lengths, sequentially laying the geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reversed filter layer 3 in a processing field, sewing the edges of the geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reversed filter layer 3 into a whole by using a portable electric sack closer, preliminarily forming composite soft body rows, wherein each composite soft body row adopts a mechanical edge covering process, and the edge covering width is more than or equal to 50 mm;

2) the composite soft mattress with simple edge sewing is integrally sewn by using a sewing machine, the interval of each sewing line is 0.25m during processing, each pulling force of the high-strength line for sewing is not less than 0.2kN, the stitch density is 10-14 needles per 10cm, the stitches are straight and uniform, and the sewing strength is not lower than the strength of the original fabric.

Further, the upper surface of geogrid layer 1 has laid bagged rubble layer 4, general row's ballast is mainly by the sand rib ballast, chain ballast and 3 kinds of forms of bagged rubble ballast, traditional software row adopts sand rib software row to spread the row process in laying process, laying time is long, can't accomplish the laying of arranging in flat tide time, the easy ponding of winter rib sand software row simultaneously freezes, artifical safety problem receives the influence, it berths to need the sand ship in the row process, increase the operation risk, cause the influence to safety, and precision and overlap joint width that the software row was arranging when sinking can receive the influence. The problem of water accumulation and icing in winter can be solved by adopting a bagged broken stone ballast mode, the laying time is short, and the efficiency is high. Because the soft rows and the geogrids have certain shrinkage in the laying process, the geogrid composite soft row also has a stretching process in the laying process, the geogrid composite soft row has higher laying speed, the time required by a sand rib bag for sand rib ballast is long, the sand rib ballast can be carried out after the geogrid composite soft row is laid for a period of time, the ballast requirement cannot be met, the bagged broken stone ballast mode is flexible, the ballast time is short, the laying requirement of the geogrid composite soft row can be met, the laying efficiency is improved, the ballast quantity can be increased according to the change of the offshore condition, and the laying quality can be effectively controlled.

Further, the bagged crushed stone layer 4 is composed of a plurality of single bagged crushed stones 41, the ballast density of the single bagged crushed stones 41 at the head and tail of the geogrid layer 1 is 1 bag/0.5 m, the ballast density of the single bagged crushed stones 41 at other positions of the geogrid layer 1 is 1 bag/2 m, namely, the distance between the single bagged crushed stones ballasted at the upper, lower, left and right sides in the figure is 0.5m or 2m, the ballast distance of the single bagged crushed stone 41 at the head of the row is 0.5m, and the ballast distance of the single bagged crushed stone 41 at the middle position is 2 m. The mode of adopting row head-to-row tail-encryption ballast is to ensure that the geogrid composite soft row is quickly drained, ensure the laying position and increase the weight of the laying edge of the row body so as to increase the anti-scouring capability of the row body. In the construction process, when the wind power on site is large or the flow velocity is small, the quantity of the bagged broken stones can be properly increased, and the paving quality is ensured.

Further, the weight of the single bag of bagged crushed stone 41 is about 25kg, and the weight of the single bag of bagged crushed stone 41 in the embodiment is 25kg, so that the operation is convenient.

Further, the interval between the seam lines integrally sewn by the geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reverse filter layer 3 is 0.25m, and the geogrid layer 1, the impact-resistant anti-aging buffer protection layer 2 and the geotextile reverse filter layer 3 can be tightly sewn together to form the geogrid composite soft mattress by ensuring the seam line density.

Further, the edges of the geogrid composite soft rows are evenly provided with eyelet buttons, the eyelet buttons can be inlaid or fixedly arranged on the geogrid composite soft rows in other modes, the single geogrid composite soft rows are connected together through the eyelet buttons, high-strength binding belts can penetrate through the eyelet buttons, and the single geogrid composite soft rows are connected through the high-strength binding belts.

Further, the longitudinal and transverse intervals of the eyelet buttons along the single geogrid composite soft row are 500m, in the embodiment, a row or a row of eyelet buttons are arranged at the edge of the single geogrid composite soft row, and the eyelet buttons are used for binding and connecting the single geogrid composite soft rows to form a whole, so that the requirement of laying the soft rows is met.

Further, the geogrid layer 1 is made of polyester filament biaxially-oriented GSJ300 type materials, is high in strength, can completely bear the weight of ballast of bagged broken stones, has certain rigidity, can control the shrinkage within 3m according to construction experience, and has the performance which is just complementary with that of a soft row.

Further, the geotextile reverse filter layer 3 is the filament needle-punched geotextile reverse filter layer 3, is made of filament needle-punched geotextile, is safe in construction, contributes to environmental protection, and has good mechanical properties and good water permeability.

In specific implementation, the geogrid layer 1, the impact-resistant anti-aging buffer protective layer 2 and the geotextile reversed filter layer 3 are processed according to the sewing method to form a single geogrid composite soft row, a plurality of geogrid composite soft rows are bound to be combined into an integral geogrid composite soft row, and finally the geogrid composite soft row is laid by a laying ship. In the embodiment, the width of each row is 5m, 8 rows are laid together, the total length of the laying ship is 68.9m, the width of the laying ship is 18m, and the requirement of one-time laying of the composite soft mattress is met.

The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be all included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.

Claims (8)

1. The geogrid composite soft body row is characterized in that the geogrid composite soft body row is formed by integrally sewing a geogrid layer, an anti-impact anti-aging buffer protection layer and a geotextile reverse filter layer, wherein the anti-impact anti-aging buffer protection layer is arranged between the geogrid layer and the geotextile reverse filter layer, and a bagged gravel layer is laid on the upper surface of the geogrid layer.

2. The geogrid composite soft body row according to claim 1, wherein the bagged gravel layer is composed of a plurality of single bagged crushed stones, the ballast density of the single bagged crushed stones at the head row part and the tail row part of the geogrid layer is 1 bag/0.5 m, and the ballast density of the single bagged crushed stones at other positions of the geogrid layer is 1 bag/2 m.

3. The geogrid composite soft body row according to claim 2, wherein the weight of the single bagged broken stone is 25 kg.

4. The geogrid composite soft body row according to claim 1, wherein the interval between sewing lines integrally sewn on the geogrid layer, the impact-resistant anti-aging buffer protection layer and the geotextile reverse filter layer is 0.25 m.

5. The geogrid composite soft body row according to claim 1, wherein eyelets are evenly arranged at the edges of the geogrid composite soft body row.

6. The geogrid composite soft body row according to claim 5, wherein the eyelets are connected through high-strength ties in a binding mode.

7. The geogrid composite soft mattress according to claim 5, wherein the longitudinal and transverse intervals of the eyelets are 500 m.

8. The geogrid composite soft body row according to claim 1, wherein the geogrid layer is of a polyester filament biaxially oriented GSJ300 type.

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