CN111636446A

CN111636446A - Construction method of composite geotechnical material

Info

Publication number: CN111636446A
Application number: CN202010534156.3A
Authority: CN
Inventors: 牛立锴; 于海洋; 杨勇; 宋乐; 马庆; 江春节; 王川; 宁东交; 高彬; 鲁克慧; 宁海涛
Original assignee: Shandong Qilu Communications Geotechnical Technology Co ltd; Shandong Dongkai Engineering Material Co ltd
Current assignee: Shandong Dongkai Engineering Material Co ltd; Shandong High Speed Geotechnical Technology Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-09-08
Anticipated expiration: 2040-06-12
Also published as: CN111636446B

Abstract

The invention relates to the field of construction of geotechnical materials, in particular to a construction method of a composite geotechnical material. The invention has the beneficial effects that: the composite geotechnical material construction method has the advantages of good soil fixing effect, good greening effect, firm structure, short construction period, low engineering cost and low maintenance cost.

Description

Construction method of composite geotechnical material

Technical Field

The invention relates to the field of construction of geotechnical materials, in particular to a construction method of a composite geotechnical material.

Background

With the development of society and the improvement of economic living standard, the ecological environment of people living in the country is more and more emphasized. In order to improve the environment, China has a large number of barren mountains, deserts, abandoned mines and the like which need to be greened. The stable structure and the ecological restoration effect of the side slope become the key for controlling the barren or greening the success or failure, especially in the places with barren soil sources, such as high slopes, mines, building houses or deserts. If the side slope is not treated properly, the side slope can be broken, collapsed, slumped and even landslide, the environment is seriously influenced, water and soil loss is caused, even traffic interruption and river channel siltation are caused, accidents are caused, and even huge economic loss and personal safety are caused.

According to the actual situation, the slope structure is fast, efficiently and low in cost according to local conditions and slope treatment, the landscape is attractive, and the slope structure is integrated with the surrounding natural environment, so that the slope structure is generally concerned by all countries. The current slope protection technology is mainly characterized in that geotextile made of anti-scour special materials is laid on side slopes such as river channels, lake banks, reservoirs and the like, and after the geotextile is laid on the side slopes such as revetments, greening seeds are planted, grass roots with strong and tough plants are tightly combined with the geotextile and the side slopes into a whole so as to control hydraulic erosion and soil loss, green the environment, control rough slopes and the like. In addition, the common methods for slope stabilization and ecological restoration include ecological concrete, grouted or dry masonry blocks, cast-in-place concrete, precast concrete blocks, check nets, ecological bags, ecological blankets, foreign soil spray seeding and the like.

However, these slope protection methods have single structural function, complicated construction, high construction cost, great difficulty in construction and maintenance work, and poor soil fixation effect, and cannot well play roles in soil fixation, separation, filtration, greening and the like. Therefore, the development of a construction method of the composite geotechnical material which is convenient to construct, good in soil fixing effect, good in greening effect, firm in structure, short in construction period, low in engineering cost and low in maintenance cost is urgently needed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the construction method of the composite geotechnical material, and the construction method of the composite geotechnical material has the advantages of good soil fixing effect, good greening effect, firm structure, short construction period, low engineering cost and low maintenance cost.

In order to achieve the purpose, the invention provides the following technical scheme: a construction method of a composite geotechnical material comprises the following steps,

step one, site arrangement is carried out,

step two, perforating the composite geotechnical material by using perforating equipment,

step three, laying the composite geotechnical material,

step four, fixing the composite geotechnical material by using the anchor rod,

step five, filling soil into the composite geotechnical material;

or step A, site arrangement,

step B, laying the composite geotechnical material,

step C, fixing the composite geotechnical material by using an anchor rod,

and D, filling soil into the composite geotechnical material.

Preferably, the first step comprises removing weeds, riprap and sundries on the site, and leveling the construction site; or step A comprises removing weeds, riprap and sundries on the site and leveling the construction site.

Preferably, the composite geotechnical material comprises a first grid strip layer, a first coating, a second coating and a second grid strip layer which are arranged from inside to outside, wherein the first grid strip layer consists of a plurality of grid strips which are longitudinally arranged, the second grid strip layer consists of a plurality of grid strips which are transversely arranged, and the longitudinal and transverse intersections of the longitudinally arranged grid strips and the transversely arranged grid strips are welded, fixed and connected to form a plurality of nodes; a plurality of cavities are formed between the first coating and the second coating, and the cavities protrude towards the outer sides of the first grid strip layer and the second grid strip layer.

Preferably, at least one of four sides of the composite geotextile material has an opening at the outer end of the cavity.

Preferably, step two comprises perforating the second cover of the composite geotextile material with a perforating apparatus.

Preferably, the narrowest part of the hole is larger than or equal to 3cm, and the widest part is smaller than the distance between two adjacent nodes.

Preferably, the pore size is 3-40 cm.

Preferably, the pore size is 3-18 cm.

Preferably, the anchor rod in the fourth step can be one or a combination of a drilling anchor rod, a prefabricated anchor rod and a pressing anchor rod; or the anchor rod in the step B can be one of a drill hole anchor rod, a prefabricated anchor rod and a pressing anchor rod or a combination of the drill hole anchor rod, the prefabricated anchor rod and the pressing anchor rod.

Preferably, the soil body comprises dry soil and water, and the dry soil and the water are respectively in parts by mass: 60-70 parts of dry soil and 40-50 parts of water; the dry soil is one or more of clay, yellow soil, red soil and sandy soil.

Preferably, the soil body contains greening seeds, and the soil body comprises the following components in parts by mass: 1-3 parts of greening seeds, 60-65 parts of dry soil and 40-45 parts of water.

Preferably, the first and second cover layers are woven geotextiles, nonwoven geotextiles, composite geotextiles, geomembranes, or nylon fabrics.

Preferably, the soil body comprises dry soil and water, and the dry soil and the water are respectively in parts by mass: 60-70 parts of dry soil and 40-50 parts of water, wherein the fifth step comprises the step of pouring the soil body from the opening;

or the soil body comprises dry soil and water, and the mass parts of the dry soil and the water are respectively as follows: 60-70 parts of dry soil and 40-50 parts of water, wherein the outer end of the cavity on at least one side of four sides of the composite geotechnical material is opened, and the soil body is filled from the opening of the outer end of the cavity in the step D;

or the soil body contains greening seeds, and the mass parts of the components in the soil body are respectively as follows: 1-3 parts of greening seeds, 60-65 parts of dry soil and 40-45 parts of water, wherein the fifth step comprises the step of pouring the soil body from the opening;

or the soil body contains greening seeds, and the mass parts of the components in the soil body are respectively as follows: 1-3 parts of greening seeds, 60-65 parts of dry soil and 40-45 parts of water, wherein the outer end of the cavity on at least one side of four sides of the composite geotechnical material is opened, and the soil body is filled from the opening of the outer end of the cavity in the step D.

Preferably, the soil body is dry soil, and the fifth step comprises pouring the soil body from the opening;

or the soil body is dry soil, the outer side end of the cavity on at least one side of the four sides of the composite geotechnical material is opened, and the soil body is filled from the opening of the outer side end of the cavity in the step D;

or the soil body is a mixture of dry soil and greening seeds, and the mass parts of the dry soil and the greening seeds are respectively as follows: 1-3 parts of greening seeds and 60-65 parts of dry soil; step five, pouring the soil body from the opening;

or the soil body is a mixture of dry soil and greening seeds, and the mass parts of the dry soil and the greening seeds are respectively as follows: 1-3 parts of greening seeds and 60-65 parts of dry soil; and D, opening the outer end of the cavity on at least one side of four sides of the composite geotechnical material, and filling the soil body from the opening of the outer end of the cavity.

Preferably, the soil body contains a fertilizer, and the mass parts of the fertilizer and the soil body are as follows: 1-3 parts of fertilizer and 90-95 parts of soil body;

the fertilizer comprises the following components in parts by weight: 15-35 parts of bacillus megatherium, 2-10 parts of humic acid and 10-12 parts of silkworm slough;

the preparation steps of the fertilizer are as follows: (1) adding bacillus megatherium and humic acid into a mixer, and stirring for 30 minutes to achieve uniformity; (2) and (3) grinding the silkworm slough into powder, adding the powder into the step (1), and continuing stirring for 30 minutes.

Compared with the prior art, the invention provides a composite geotechnical material which has the following beneficial effects:

1. when the construction method is used, after the second coating layer is opened, the seeds and the nutrient soil are sprayed and planted in the cavities by the equipment, the cavities formed by the two layers of geotextiles can well fix the soil, prevent the soil from losing, have good soil fixing effect and good greening effect, and play a role in soil fixing and planting.

2. The invention has simple construction process, short construction period and low construction cost.

3. The construction method is convenient to construct, has a wide application range, and is suitable for greening engineering in deserts, highway slope protection, tunnel exit slopes and mine mountain bodies.

4. The construction method of the invention is firm, firm and durable after being fixed by the anchor rod, and well avoids the collapse of the slope body.

5. The construction method of the invention has simple operation, convenient maintenance and low maintenance cost.

Drawings

FIG. 1 is a schematic flow chart of a construction method of the present invention;

FIG. 2 is a schematic flow chart of another construction method of the present invention;

fig. 3 is a front view of a composite geo-material product of the present invention;

fig. 4 is a left side view of the composite geo-material product of the present invention;

the following are marked in the figure:

1. a first grid strap layer; 2. a second grid strap layer; 3. a node; 4. a first cladding layer; 5. a second cladding layer; 6. a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

As shown in fig. 1, 3 and 4, a construction method of a composite geotextile material includes the following steps,

step one, site arrangement is carried out,

step three, laying the composite geotechnical material,

step four, fixing the composite geotechnical material by using the anchor rod,

and step five, filling soil bodies into the composite geotechnical materials.

Example 2

As shown in fig. 1, 3 and 4, a construction method of a composite geotextile material includes the steps of removing weeds, riprap and sundries on a site and leveling the construction site on the basis of the embodiment 1.

Example 3

As shown in fig. 1, 3 and 4, a construction method of a composite geotechnical material is provided, based on embodiment 1, the composite geotechnical material comprises a first grid strip layer 1, a first coating 4, a second coating 5 and a second grid strip layer 2 which are arranged from inside to outside, wherein the first grid strip layer 1 is composed of a plurality of grid strips arranged longitudinally, the second grid strip layer 2 is composed of a plurality of grid strips arranged transversely, and the longitudinal and transverse intersections of the longitudinally arranged grid strips and the transversely arranged grid strips are fixedly connected by welding to form a plurality of nodes 3; a plurality of cavities 6 are formed between the first coating layer 4 and the second coating layer 5, and the cavities 6 protrude towards the outer sides of the first grating strip layer 1 and the second grating strip layer 2.

Example 4

As shown in fig. 1, 3 and 4, in a construction method of a composite geotextile material, based on example 3, the outer side end of a cavity 6 with one side edge among four side edges of the composite geotextile material is opened.

Example 5

As shown in fig. 1, 3 and 4, a construction method of the composite geotextile material is based on the embodiment 3, and the second step comprises the step of perforating the second coating layer 5 of the geotextile by using perforating equipment, wherein the pore diameter is 3 cm.

Example 6

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of the embodiment 1, the anchor rods in the fourth step are drilling anchor rods, the geology is a hard geological structure, and the composite geotechnical material is fixed by the drilling anchor rods.

Example 7

As shown in fig. 1 to 3, in the construction method of the composite geotechnical material, on the basis of embodiment 1, the anchor rod in the fourth step is a prefabricated anchor rod, the geology is a soft geological structure, and the prefabricated anchor rod is used for fixing the composite geotechnical material.

Example 8

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, a soil body comprises dry soil and water, the dry soil is clay, and the dry soil and the water are respectively in parts by mass: preparing slurry, namely adding 40 parts by mass of water into a bin of a foreign soil spraying and thinning machine and starting stirring, gradually adding 60 parts by mass of dry soil into the bin of the foreign soil spraying and thinning machine, and stirring and mixing for 20min to form colloidal slurry; and (4) spraying the slurry into the cavities of the composite geotechnical material from the open hole by using an alien soil spraying machine.

And then, mechanically or manually spreading greening seeds on the composite geotechnical material. Spreading greening seeds on the composite geotechnical material, wherein the density of the greening seeds is 15g/m²。

Example 9

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, a soil body comprises dry soil and water, the dry soil is clay, and the dry soil and the water are respectively in parts by mass: 60 parts of dry soil and 40 parts of water, and manually pouring soil into a plurality of cavities of the composite geotechnical material from the opening after the soil and the water are mixed and stirred.

And then, mechanically or manually spreading greening seeds on the composite geotechnical material. Spreading greening seeds or the greening seeds with the density of 25g/m on the composite geotechnical material²。

Example 10

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, a soil body contains greening seeds, and the soil body comprises the following components in parts by mass: preparing slurry, namely adding 45 parts by mass of water into a bin of a soil dressing spraying and thinning machine and starting stirring, adding 2 parts by mass of greening seeds into the bin of the soil dressing spraying and thinning machine and starting stirring, gradually adding 65 parts by mass of dry soil into the bin of the soil dressing spraying and thinning machine, and stirring and mixing for 25min to form colloidal slurry; and (4) spraying the slurry into the cavities of the composite geotechnical material from the open hole by using an alien soil spraying machine.

Example 11

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, a soil body contains greening seeds, and the soil body comprises the following components in parts by mass: 2 parts of greening seeds, 65 parts of dry soil, 45 parts of water and clay as dry soil, and pouring soil into the opening, manually mixing the dry soil, the water and the greening seeds uniformly, and manually pouring the soil into a plurality of cavities of the composite geotechnical material from the opening.

Example 12

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, soil is dry soil, and the dry soil is clay, and the fifth step includes pouring soil into the soil from the opening, and pouring soil into a plurality of cavities of the composite geotechnical material from the opening by using a machine.

After the soil body is poured, water is sprayed on the composite geotechnical material, and then greening seeds are manually or mechanically sprinkled. Sprinkling greening on composite geotechnical materialThe density of the seeds and the greening seeds is 18g/m²

Example 13

As shown in fig. 1, 3 and 4, in the construction method of the composite geotechnical material, on the basis of embodiment 1, a soil body is a mixture of dry soil and greening seeds, and the dry soil and the greening seeds are respectively in parts by mass: 1 part of greening seeds and 60 parts of dry soil; the dry soil is clay, and the fifth step comprises pouring the soil body from the open pore; and (4) filling soil into the cavities of the composite geotechnical material from the opening by using a machine.

After the soil body is poured, water is sprayed on the composite geotechnical material.

Example 14

As shown in fig. 2 to 4, a construction method of a composite geo-material includes the steps of,

step A, site arrangement,

step B, laying the composite geotechnical material,

step C, fixing the composite geotechnical material by using an anchor rod,

and D, filling soil into the composite geotechnical material.

Example 15

As shown in fig. 2-4, a construction method of a composite geotechnical material, based on example 14, step a includes removing weeds, riprap and impurities from the construction site, and leveling the construction site.

Example 16

As shown in fig. 2-4, a construction method of a composite geotechnical material, based on the embodiment 14, the composite geotechnical material comprises a first grid strip layer 1, a first covering layer 4, a second covering layer 5 and a second grid strip layer 2 which are arranged from inside to outside, wherein the first grid strip layer 1 consists of a plurality of grid strips which are arranged longitudinally, the second grid strip layer 2 consists of a plurality of grid strips which are arranged transversely, and the longitudinal and transverse intersections of the grid strips which are arranged longitudinally and the grid strips which are arranged transversely are fixedly connected by welding to form a plurality of nodes 3; a plurality of cavities 6 are formed between the first coating layer 4 and the second coating layer 5, and the cavities 6 protrude towards the outer sides of the first grating strip layer 1 and the second grating strip layer 2.

Example 17

As shown in fig. 2-4, in the construction method of the composite geotextile material, on the basis of the embodiment 16, the outer side end of the cavity 6 of one side of the four sides of the composite geotextile material is opened.

Example 18

As shown in fig. 2 to 4, a construction method of a composite geotextile material, based on example 16, comprises the step B of perforating the second cover layer 5 of the geotextile with a perforating device, wherein the pore size is 3 cm.

Example 19

As shown in fig. 2-4, in the construction method of the composite geotechnical material, on the basis of the embodiment 14, the anchor rod in the step D is a drilling anchor rod, the geology is a hard geological structure, and the composite geotechnical material is fixed by the drilling anchor rod.

Example 20

As shown in fig. 2 to 4, in the construction method of the composite geotechnical material according to the embodiment 14, the anchor rod in the step D is a prefabricated anchor rod, the geology is a soft geological structure, and the prefabricated anchor rod is used for fixing the composite geotechnical material.

Example 21

As shown in fig. 2 to 4, a construction method of a composite geotechnical material is provided, in example 14, a soil body includes dry soil and water, the dry soil is clay, and the dry soil and the water are, by mass: preparing slurry, namely adding 40 parts by mass of water into a bin of a foreign soil spray-thinning machine, starting stirring, gradually adding 60 parts by mass of dry soil into the bin of the foreign soil spray-thinning machine, and stirring and mixing for 20min to form colloidal slurry; and (3) spraying the slurry into the cavities of the composite geotechnical material from the openings at the outer ends of the cavities by using a foreign soil spraying machine.

And then, mechanically or manually spreading greening seeds on the composite geotechnical material.

Example 22

As shown in fig. 2 to 4, a construction method of a composite geotechnical material is provided, in example 14, a soil body includes dry soil and water, the dry soil is clay, and the dry soil and the water are, by mass: and D, filling soil from the opening of the outer side end of the cavity, manually mixing and stirring the soil and the water, and manually filling the soil into the cavities of the composite geotechnical material from the opening of the outer side end of the cavity.

Example 23

As shown in fig. 2 to 4, a construction method of a composite geotechnical material includes, based on example 14, a soil body containing greening seeds, wherein the soil body includes the following components in parts by mass: preparing slurry, namely adding 45 parts by mass of water into a bin of a soil dressing spraying and thinning machine and starting stirring, adding 2 parts by mass of greening seeds into the bin of the soil dressing spraying and thinning machine and starting stirring, gradually adding 65 parts by mass of dry soil into the bin of the soil dressing spraying and thinning machine, and stirring and mixing for 25min to form colloidal slurry; and (3) spraying the slurry into the cavities of the composite geotechnical material from the openings at the outer ends of the cavities at the two sides by using a foreign soil spraying machine.

Example 24

As shown in fig. 2 to 4, a construction method of a composite geotechnical material includes, based on example 14, a soil body containing greening seeds, wherein the soil body includes the following components in parts by mass: 2 parts of greening seeds, 65 parts of dry soil, 45 parts of water and clay, wherein the dry soil is clay, the outer side ends of the cavities on two sides of the four sides of the composite geotechnical material are opened, and the step D comprises the steps of pouring soil mass into the openings of the outer side ends of the cavities on the two sides, manually mixing the dry soil, the water and the greening seeds uniformly, and manually pouring the soil mass into a plurality of cavities of the composite geotechnical material from the openings of the outer side ends of the cavities on the two sides.

Example 25

As shown in fig. 2 to 4, in the construction method of a composite geotextile material, based on example 14, soil is dry soil, the dry soil is clay, three cavities are provided in four sides of the composite geotextile material, and step D, soil is filled from the openings of the outer ends of the cavities, and soil can be filled into the cavities of the composite geotextile material from the openings of the outer ends of the cavities of the three sides by a machine.

After the soil body is poured, water is sprayed on the composite geotechnical material, and then greening seeds are manually or mechanically sprinkled.

Example 26

As shown in fig. 2 to 4, a construction method of a composite geotechnical material is provided, in example 14, a soil body is a mixture of dry soil and green seeds, and the dry soil and the green seeds are, in parts by mass: 1 part of greening seeds and 60 parts of dry soil; d, filling soil into the cavity body from the openings of the outer ends of the cavities on the four sides of the composite geotechnical material; soil can be poured into the cavities of the composite geotechnical material from the openings of the outer ends of the cavities on the four sides by machinery.

Example 27

As shown in fig. 2 to 4, a construction method of a composite geotechnical material is provided, in example 14, a soil body is a mixture of dry soil and green seeds, and the dry soil and the green seeds are, in parts by mass: 1 part of greening seeds and 60 parts of dry soil; d, filling soil into the cavity body from the openings of the outer ends of the cavities on the four sides of the composite geotechnical material; soil can be poured into the cavities of the composite geotechnical material from the openings at the outer ends of the cavities at the four sides by manpower.

Example 28

As shown in fig. 2 to 4, in the construction method of the composite geotextile material, on the basis of the embodiment 16, the first covering layer 4 and the second covering layer 5 are non-woven fabrics.

Example 29

As shown in fig. 2 to 4, a construction method of a composite geotechnical material is based on example 14, wherein a soil body contains fertilizer, and the fertilizer and the soil body comprise the following components in parts by mass: 2 parts of fertilizer and 90 parts of soil body; the fertilizer comprises the following components in parts by weight: 15 parts of bacillus megatherium, 2 parts of humic acid and 12 parts of silkworm slough; the preparation steps of the fertilizer are as follows: (1) adding bacillus megatherium and humic acid into a mixer, and stirring for 30 minutes to achieve uniformity; (2) grinding silkworm slough into powder, adding the powder into the step (1), and continuously stirring for 30 minutes; mixing and stirring the fertilizer and the soil for 20 minutes; d, opening the outer side end of the cavity on the four sides of the composite geotechnical material, and pouring soil into the cavity from the openings of the outer side ends of the cavity on the four sides; soil can be poured into the cavities of the composite geotechnical material from the openings at the outer ends of the cavities at the four sides by manpower.

After the soil body is poured, spraying water on the composite geotechnical material, and then sprinkling greening seeds.

The components used in the present invention are all common standard components or components known to those skilled in the art, and the structure and principle thereof are well known to those skilled in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A construction method of a composite geotechnical material is characterized by comprising the following steps: comprises the following steps of (a) carrying out,

step one, site arrangement is carried out,

step three, laying the composite geotechnical material,

step four, fixing the composite geotechnical material by using the anchor rod,

step five, filling soil into the composite geotechnical material;

or step A, site arrangement,

step B, laying the composite geotechnical material,

step C, fixing the composite geotechnical material by using an anchor rod,

and D, filling soil into the composite geotechnical material.

2. The construction method of a composite geotextile material as claimed in claim 1, wherein:

the first step comprises the steps of removing weeds, riprap and sundries on the site, and leveling the construction site; or step A comprises removing weeds, riprap and sundries on the site and leveling the construction site.

3. A method of constructing a composite geotextile material according to claim 1 or 2, wherein: the composite geotechnical material comprises a first grid strip layer, a first coating, a second coating and a second grid strip layer which are arranged from inside to outside, wherein the first grid strip layer is composed of a plurality of grid strips which are longitudinally arranged, the second grid strip layer is composed of a plurality of grid strips which are transversely arranged, and the longitudinal and transverse intersections of the grid strips which are longitudinally arranged and the grid strips which are transversely arranged are fixedly connected by welding to form a plurality of nodes; a plurality of cavities are formed between the first coating and the second coating, and the cavities protrude towards the outer sides of the first grid strip layer and the second grid strip layer.

4. A method of constructing a composite geotextile material according to any of claims 1 to 3, wherein: and the outer side end of the cavity on at least one of the four sides of the composite geotechnical material is opened.

5. A method of constructing a composite geotextile material according to any of claims 1 to 4, wherein: and the second step comprises the step of opening holes on the second coating of the composite geotechnical material by using a hole opening device.

6. A method of constructing a composite geotextile material according to any of claims 1 to 5, wherein: the soil body comprises dry soil and water, and the mass parts of the dry soil and the water are respectively as follows: 60-70 parts of dry soil and 40-50 parts of water; the dry soil is one or a mixture of more of clay, yellow soil, red soil and sandy soil;

or the soil body contains greening seeds, and the mass parts of the components in the soil body are respectively as follows: 1-3 parts of greening seeds, 60-65 parts of dry soil and 40-45 parts of water, wherein the dry soil is one or a mixture of more of clay, yellow loam, red loam and sandy loam.

7. A method of constructing a composite geotextile material according to any of claims 1 to 6, wherein: the first coating and the second coating are textile geotextile, woven geotextile, non-woven geotextile, composite geotextile, geomembrane or nylon fabric.

8. A method of constructing a composite geotextile material according to any of claims 1 to 7, wherein: the soil body comprises dry soil and water, and the mass parts of the dry soil and the water are respectively as follows: 60-70 parts of dry soil and 40-50 parts of water, wherein the fifth step comprises the step of pouring the soil body from the opening;

9. A method of constructing a composite geotextile material according to any of claims 1 to 8, wherein: the soil body is dry soil, and the fifth step comprises pouring the soil body from the opening;

10. A method of constructing a composite geotextile material according to any of claims 1 to 9, wherein: the soil body contains a fertilizer, and the mass parts of the fertilizer and the soil body are as follows: 1-3 parts of fertilizer and 90-95 parts of soil body;