Flow-state solidified soil complexing agent suitable for different soil properties and preparation method of flow-state solidified soil complexing agent

Abstract

The invention relates to a flow-state solidified soil complexing agent suitable for different soil properties and a preparation method thereof, and belongs to the technical field of flow-state solidified soil, the flow-state solidified soil complexing agent comprises mixing assisting fibers and a mixing assisting agent; the blending assisting fibers are spun through a spinning machine, fibers A and fibers B are mutually wound to obtain the blending assisting fibers, and the length of the blending assisting fibers is cut to be 0.1 mm; the fiber A is prepared by pressing, dehydrating and weaving plant wood pulp and then spraying an anti-oxidation film coating agent with the thickness of 0.003 on the surface of the plant wood pulp, and the fiber B is obtained by spinning a spinning solution through an electrostatic spinning process. According to the invention, the mixing aid fiber and the mixing aid are matched with each other, so that the fluid solidified soil complexing agent is suitable for different soil textures; the fiber yarns B are uniformly dispersed in the soil-based material, so that the prepared material can achieve relatively good fluidity and unconfined compressive strength when being applied to buildings.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fluidized solidified soil and particularly relates to a fluidized solidified soil composite agent suitable for different soil and a preparation method thereof. BACKGROUND

[0002] As a new backfill material, the fluidized solidified soil can be used to replace the traditional filler and applied to roadbed filling, pipe gallery backfilling, platform backfilling and the like, has the characteristics of rich raw material source, self-leveling, self-compaction and moderate strength, and can effectively solve the problems of large demand for natural resources, serious dust pollution and insufficient compaction degree in narrow space of the traditional filler.

[0003] The fluidized solidified soil needs to be added with a fluidized solidified soil composite agent to enhance the fluidity and unconfined compressive strength of the fluidized solidified soil during use, but the general fluidized solidified soil composite agent can only be used for one kind of soil, has a small application range, and needs to be investigated according to the local soil environment during use, and can be selected and used only after complicated investigation. SUMMARY

[0004] The application aims to provide a fluidized solidified soil composite agent suitable for different soil and a preparation method thereof to solve the above problems.

[0005] The application achieves the above object through the following technical scheme. The application provides a fluidized solidified soil composite agent suitable for different soil, which comprises: mixing fibers and mixing aids. The mixing fibers are spun by a textile machine to make A fiber filaments and B fiber filaments interwoven, the length of the mixing fibers is cut to 0.1 mm, the A fiber filaments are prepared by spraying an antioxidant coating agent with a thickness of 0.003 on the surface of plant wood pulp after compression, dehydration and weaving, and the B fiber filaments are spun by an electrospinning process. The preparation raw materials of the plant wood pulp include, by weight, 20-35 parts of citronella, 5-8 parts of cotton, 30-45 parts of Paulownia wood, 10-15 parts of corn cob, 60-70 parts of lime water and 2-6 parts of chemical aids, and the preparation raw materials of the spinning liquid include 40-52 parts of 65% polyethylene water solution, 3-6 parts of polyphosphate, 6-12 parts of urea-formaldehyde resin and 8-16 parts of solanum nigrum base.

[0006] As a further optimization scheme of the application, the antioxidant coating agent is composed of, by weight, 12-18 parts of sodium hyaluronate, 1-4 parts of dioscin and 20-25 parts of gum arabic.

[0007] As a further optimization scheme of the present application, the preparation process of the antioxidant coating agent is as follows: sodium hyaluronate and dioscin are mixed and placed in a crucible, heated to 55 DEG C, arabic gum is added, and stirred at 600-1000 r / min for 5-20 min to obtain the antioxidant coating agent, which is stored at room temperature 45 DEG C for standby.

[0008] As a further optimization scheme of the present application, the preparation raw materials of the mixing aid include, by weight: 40-55 parts of citric acid, 8-16 parts of cellulose, 5-10 parts of pectin and 6-12 parts of chondroitin sulfate.

[0009] As a further optimization scheme of the present application, the preparation method of the lime water is as follows: lime is put into tap water, stirred at 20-60 r / min for 10-20 min to obtain the lime water; the mass ratio of the lime to the tap water is 0.4:6.

[0010] As a further optimization scheme of the present application, the cross-sectional radii of the A fiber filaments and the B fiber filaments are the same, and the mass ratio of the mixing aid fiber to the mixing aid is 1:4.

[0011] The present application also provides a preparation method of the flow state solidified soil composite agent suitable for different soil textures, which comprises the following steps: Preparation of plant wood pulp: the citronella, cotton, paulownia wood and corn cob are crushed by a crusher, and then sieved through a 600-800 mesh screen, the material is put into a digester, lime water is added, the cooking pressure is 5-10 kg / cm2, the cooking temperature is 80-120 DEG C, and the cooking time is 30-50 min; the flocculent material is taken out and added into a stirrer, chemical additives are added into the stirrer, and stirred at 15-25 r / min for 5-8 h to obtain the plant wood pulp; Preparation of A fiber filaments: the plant wood pulp is pressed, dehydrated and woven, and then the antioxidant coating agent is sprayed on the surface of the plant wood pulp to obtain the A fiber filaments; Preparation of spinning solution: 65% polyethylene water solution, polyphosphate, urea-formaldehyde resin and solanum nigrum alkaloid are uniformly mixed and stored at 60 DEG C to obtain the spinning solution; Preparation of B fiber filaments: the spinning solution is injected into an electrospinning equipment and electrospun to obtain the B fiber filaments; Preparation of mixing aid fiber: the A fiber filaments and the B fiber filaments are fed into a spinning machine in parallel arrangement, and then spun to make the A fiber filaments and the B fiber filaments entangle with each other to obtain the mixing aid fiber; Preparation of mixing aid: citric acid, cellulose, pectin and chondroitin sulfate are stirred at 45-60 r / min for 5-10 min at 60 DEG C to obtain the mixing aid; Preparation of the fluid solidified soil composite agent: the mixing aid is placed in a blender and stirred at 30-45 r / min for 45-50 min, then the mixing aid fiber is added and stirred for 5 min to obtain the fluid solidified soil composite agent.

[0012] The application has the advantages that the fluid solidified soil composite agent is suitable for different soil textures by using the mixing aid fiber and the mixing aid to cooperate with each other, the mixing aid fiber is made of plant wood pulp, the A fiber and the B fiber are intertwined, when the mixing aid fiber and the mixing aid are mixed, the volume of the A fiber is rapidly expanded so that the A fiber and the B fiber are no longer intertwined and are in a separated state, the B fiber is more uniformly dispersed in the soil base material, and the prepared material is applied to the building to achieve better fluidity and unconfined compressive strength. DETAILED DESCRIPTION

[0013] The following further describes the application, and it is necessary to point out here that the following detailed description is only used to further illustrate the application and cannot be understood as limiting the protection scope of the application, and the skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0014] The method used in the application is a conventional method known by the skilled in the art, and the reagents and materials used are commercially available products, unless otherwise specified.

[0015] In the application, the processing process of the chemical aid is as follows: polyethyleneimine, urea, ammonium sulfate, sodium hydroxide, paraffin emulsion and activated carbon are added to a stirrer and stirred uniformly to obtain the chemical aid. The mass ratio of polyethyleneimine, urea, ammonium sulfate, sodium hydroxide, paraffin emulsion and activated carbon is 1:0.2:0.8:2:1.2:4.

[0016] Example 1 The preparation process of the antioxidant coating agent is as follows: 12 parts of sodium hyaluronate and 1 part of dioscin are mixed and placed in a crucible, heated to 55℃, 20 parts of gum arabic are added, and stirred at 800 r / min for 10 min to obtain the antioxidant coating agent, which is stored at room temperature 45℃ for standby use; The preparation method of the lime water is as follows: lime is put into tap water, stirred at 40 r / min for 15 min to obtain the lime water; the mass ratio of lime to tap water is 0.4:6; Preparation of plant wood pulp: 20 parts lemongrass root, 5 parts cotton, 30 parts paulownia wood, and 10 parts corn cob were crushed by a crusher and passed through a 700-mesh sieve. The material was then fed into a digester, 60 parts lime water were added, and the digestion pressure was 8 kg / cm2, the digestion temperature was 100℃, and the digestion time was 40 min. The flocculent material was then removed and added to a mixer. 3 parts chemical additives were added to the mixer, and the mixture was stirred at 20 r / min for 6 h to obtain plant wood pulp. Preparation of A-fiber filaments: Plant wood pulp is pressed, dehydrated, woven, and then coated with an antioxidant coating agent with a thickness of 0.003 mm to obtain A-fiber filaments; Preparation of spinning solution: Mix 40 parts of 65% polyethylene aqueous solution, 3 parts of polyphosphate ester, 6 parts of urea-formaldehyde resin and 8 parts of solanine evenly, and store at 60°C to obtain spinning solution; Preparation of B-fiber filaments: The spinning solution is injected into an electrospinning device and spun into B-fiber filaments by electrospinning process; Preparation of blended fibers: A fiber filaments and B fiber filaments are fed into a textile machine in a parallel arrangement and spun to make A fiber filaments and B fiber filaments intertwine to obtain blended fibers (A fiber filaments and B fiber filaments have the same cross-sectional radius). Preparation of mixing aid: 40 parts citric acid, 8 parts cellulose, 5 parts pectin and 6 parts chondroitin sulfate were stirred at 55 r / min for 8 min at 60℃ to obtain the mixing aid; Preparation of fluidized solidified soil composite: The mixing aid was placed in a mixer and stirred at 42 r / min for 48 min. Then, the mixing aid fiber was added and the mixture was stirred for another 5 min to obtain the fluidized solidified soil composite (the mass ratio of the mixing aid fiber to the mixing aid was 1:4).

[0017] Example 2 The preparation process of the antioxidant coating agent is as follows: 16 parts of sodium hyaluronate and 3 parts of diosgenin are mixed and placed in a crucible, heated to 55°C, 22 parts of gum arabic are added, and stirred at 800r / min for 10min to obtain the antioxidant coating agent, which is then stored at room temperature (45°C) for later use. The method for preparing lime water is as follows: add lime to tap water and stir at 40 r / min for 15 min to obtain lime water; the mass ratio of lime to tap water is 0.4:6. Preparation of plant wood pulp: 30 parts lemongrass root, 6 parts cotton, 38 parts paulownia wood, and 12 parts corn cob were crushed by a crusher and passed through a 700-mesh sieve. The materials were then fed into a digester, 65 parts lime water were added, and the digestion pressure was 8 kg / cm2, the digestion temperature was 100℃, and the digestion time was 40 min. The flocculent material was then removed and added to a mixer. 3 parts chemical additives were added to the mixer, and the mixture was stirred at 20 r / min for 6 h to obtain plant wood pulp. Preparation of A fiber yarn: plant wood pulp is pressed, dehydrated and woven, and then an antioxidant coating agent with a thickness of 0.003 is sprayed on the surface of the plant wood pulp to obtain the preparation A fiber yarn; Preparation of spinning solution: 50 parts of 65% polyethylene aqueous solution, 4 parts of polyphosphate, 8 parts of urea-formaldehyde resin and 12 parts of solanum nigrum base are uniformly mixed and stored at 60°C to obtain the spinning solution; Preparation of B fiber yarn: the spinning solution is injected into an electrospinning device to obtain the B fiber yarn through an electrospinning process; Preparation of blending aid fiber: the A fiber yarn and the B fiber yarn are fed into a spinning machine in parallel arrangement, and the A fiber yarn and the B fiber yarn are intertwined with each other to obtain the blending aid fiber (the cross-sectional radii of the A fiber yarn and the B fiber yarn are the same); Preparation of blending aid: 48 parts of citric acid, 12 parts of cellulose, 8 parts of pectin and 10 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60°C to obtain the blending aid; Preparation of fluidized solidified soil composite agent: the blending aid is placed in a blender and stirred at 42 r / min for 48 min, and then the blending aid fiber is added and stirred for 5 min to obtain the fluidized solidified soil composite agent (the mass ratio of the blending aid fiber to the blending aid is 1:4).

[0018] Example 3 The preparation process of the antioxidant coating agent is as follows: 18 parts of sodium hyaluronate and 4 parts of dioscin are mixed and placed in a crucible, heated to 55°C, 25 parts of gum arabic is added, and stirred at 800 r / min for 10 min to obtain the antioxidant coating agent, which is stored at room temperature of 45°C for standby; The preparation method of lime water is as follows: lime is put into tap water, stirred at 40 r / min for 15 min to obtain lime water; the mass ratio of lime to tap water is 0.4:6; Preparation of plant wood pulp: 35 parts of citronella, 8 parts of cotton, 45 parts of paulownia wood and 15 parts of corn cob are crushed by a crusher, and then the materials are passed through a 700-mesh screen, and then the materials are put into a digester, 70 parts of lime water is added, the cooking pressure is 8 kg / cm2, the cooking temperature is 100°C, and the cooking time is 40 min; the flocculent material is taken out and added into a stirrer, 3 parts of chemical aid is added into the stirrer, and stirred at 20 r / min for 6 h to obtain the plant wood pulp; Preparation of A fiber yarn: the plant wood pulp is pressed, dehydrated and woven, and then an antioxidant coating agent with a thickness of 0.003 is sprayed on the surface of the plant wood pulp to obtain the preparation A fiber yarn; Preparation of spinning solution: 52 parts of 65% polyethylene aqueous solution, 6 parts of polyphosphate, 12 parts of urea-formaldehyde resin and 16 parts of solanum nigrum base are uniformly mixed and stored at 60°C to obtain the spinning solution; Preparation of B fiber yarn: the spinning solution is injected into an electrospinning device to obtain the B fiber yarn through an electrospinning process; Preparation of the mixing aid fiber: the A fiber yarn and the B fiber yarn are fed into the textile machine in parallel arrangement, and are spun to make the A fiber yarn and the B fiber yarn entangled with each other, to obtain the mixing aid fiber (the cross-sectional radii of the A fiber yarn and the B fiber yarn are the same); Preparation of the mixing aid: 55 parts of citric acid, 16 parts of cellulose, 10 parts of pectin and 12 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60°C to obtain the mixing aid; Preparation of the fluidified solidified soil composite agent: the mixing aid is placed in a blender and stirred at 42 r / min for 48 min, and then the mixing aid fiber is added and stirred for 5 min to obtain the fluidified solidified soil composite agent (the mass ratio of the mixing aid fiber to the mixing aid is 1:4).

[0019] Comparative Example 1 The preparation method of the lime water is as follows: the lime is put into tap water, and stirred at 40 r / min for 15 min to obtain the lime water; the mass ratio of the lime to the tap water is 0.4:6; Preparation of the plant wood pulp: 30 parts of citronella, 6 parts of cotton, 38 parts of Paulownia wood and 12 parts of corn cob are crushed by a crusher, and then sieved through a 700-mesh screen; the material is put into a digester, 65 parts of the lime water is added, the cooking pressure is 8 kg / cm2, the cooking temperature is 100°C, and the cooking time is 40 min; the flocculent material is taken out and added into a stirrer, 3 parts of a chemical additive is added into the stirrer, and stirred at 20 r / min for 6 h to obtain the plant wood pulp; Preparation of the A fiber yarn: the plant wood pulp is pressed, dehydrated and woven to obtain the A fiber yarn; Preparation of the spinning solution: 50 parts of 65% polyethylene water solution, 4 parts of polyphosphate, 8 parts of urea-formaldehyde resin and 12 parts of solanum nigrum alkaloid are uniformly mixed and stored at 60°C to obtain the spinning solution; Preparation of the B fiber yarn: the spinning solution is injected into an electrospinning equipment to obtain the B fiber yarn by electrospinning process; Preparation of the mixing aid fiber: the A fiber yarn and the B fiber yarn are fed into the textile machine in parallel arrangement, and are spun to make the A fiber yarn and the B fiber yarn entangled with each other, to obtain the mixing aid fiber (the cross-sectional radii of the A fiber yarn and the B fiber yarn are the same); Preparation of the mixing aid: 48 parts of citric acid, 12 parts of cellulose, 8 parts of pectin and 10 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60°C to obtain the mixing aid; Preparation of the fluidified solidified soil composite agent: the mixing aid is placed in a blender and stirred at 42 r / min for 48 min, and then the mixing aid fiber is added and stirred for 5 min to obtain the fluidified solidified soil composite agent (the mass ratio of the mixing aid fiber to the mixing aid is 1:4).

[0020] Comparative Example 2 The preparation process of the antioxidant coating agent is as follows: 19 parts of dioscin are mixed and placed in a crucible, heated to 55℃, 22 parts of gum arabic are added, stirred at 800 r / min for 10 min to obtain the antioxidant coating agent, and stored at room temperature 45℃ for standby; The preparation method of lime water is as follows: lime is put into tap water, stirred at 40 r / min for 15 min to obtain lime water; the mass ratio of lime to tap water is 0.4:6; The plant wood pulp is prepared as follows: 30 parts of citronella, 6 parts of cotton, 38 parts of paulownia wood, and 12 parts of corn cob are crushed by a crusher, and then sieved through a 700 mesh screen; the material is put into a digester, 65 parts of lime water is added, the cooking pressure is 8 kg / cm2, the cooking temperature is 100℃, and the cooking time is 40 min; the flocculent material is taken out and added into a stirrer, 3 parts of chemical additives are added into the stirrer, and stirred at 20 r / min for 6 h to obtain the plant wood pulp; The A fiber yarn is prepared as follows: after the plant wood pulp is pressed, dehydrated, and woven, 0.003 thickness of antioxidant coating agent is sprayed on the surface of the plant wood pulp to obtain the A fiber yarn; The spinning solution is prepared as follows: 50 parts of 65% polyethylene water solution, 4 parts of polyphosphate, 8 parts of urea-formaldehyde resin, and 12 parts of solanum nigrum alkaloid are uniformly mixed and stored at 60℃ to obtain the spinning solution; The B fiber yarn is prepared as follows: the spinning solution is injected into an electrospinning equipment and spun by an electrospinning process to obtain the B fiber yarn; The blending fiber is prepared as follows: the A fiber yarn and the B fiber yarn are fed into a textile machine in a parallel arrangement, and spun to make the A fiber yarn and the B fiber yarn entangle with each other to obtain the blending fiber (the cross-sectional radii of the A fiber yarn and the B fiber yarn are the same); The blending agent is prepared as follows: 48 parts of citric acid, 12 parts of cellulose, 8 parts of pectin, and 10 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60℃ to obtain the blending agent; The fluid solidified soil composite agent is prepared as follows: the blending agent is placed in a stirrer and stirred at 42 r / min for 48 min, and then the blending fiber is added and stirred for 5 min to obtain the fluid solidified soil composite agent (the mass ratio of the blending fiber to the blending agent is 1:4).

[0021] Comparative Example 3 The preparation process of the antioxidant coating agent is as follows: 19 parts of sodium hyaluronate are mixed and placed in a crucible, heated to 55℃, 22 parts of gum arabic are added, stirred at 800 r / min for 10 min to obtain the antioxidant coating agent, and stored at room temperature 45℃ for standby; The preparation method of lime water is as follows: lime is put into tap water, stirred at 40 r / min for 15 min to obtain lime water; the mass ratio of lime to tap water is 0.4:6; Preparation of plant wood pulp: 30 parts of citronella, 6 parts of cotton, 38 parts of paulownia wood, 12 parts of corn cob are crushed by a crusher, and the materials are passed through a 700 mesh screen. The materials are put into a digester, 65 parts of lime water is added, the cooking pressure is 8 kg / cm2, the cooking temperature is 100℃, and the cooking time is 40 min. The flocculent material is taken out and added to a stirrer. 3 parts of chemical additives are added to the stirrer, and stirred at 20 r / min for 6 h to obtain plant wood pulp; Preparation of A fiber yarn: the plant wood pulp is pressed, dehydrated, and woven, and then an antioxidant coating agent with a thickness of 0.003 is sprayed on the surface to obtain the prepared A fiber yarn; Preparation of spinning solution: 50 parts of 65% polyethylene water solution, 4 parts of polyphosphate, 8 parts of urea-formaldehyde resin, and 12 parts of solanum nigrum base are uniformly mixed and stored at 60℃ to obtain the spinning solution; Preparation of B fiber yarn: the spinning solution is injected into an electrospinning equipment to obtain B fiber yarn by electrospinning process; Preparation of blending fiber: A fiber yarn and B fiber yarn are fed into a spinning machine in parallel arrangement, and A fiber yarn and B fiber yarn are intertwined to obtain blending fiber (the cross-sectional radii of A fiber yarn and B fiber yarn are the same); Preparation of blending agent: 48 parts of citric acid, 12 parts of cellulose, 8 parts of pectin, and 10 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60℃ to obtain the blending agent; Preparation of fluidized solidified soil composite agent: the blending agent is placed in a stirrer and stirred at 42 r / min for 48 min, and then the blending fiber is added and stirred for 5 min to obtain the fluidized solidified soil composite agent (the mass ratio of blending fiber to blending agent is 1:4).

[0022] Comparative Example 4 The preparation process of the antioxidant coating agent is as follows: 16 parts of sodium hyaluronate and 3 parts of dioscin are mixed and placed in a crucible, heated to 55℃, 22 parts of gum arabic is added, and stirred at 800 r / min for 10 min to obtain the antioxidant coating agent, which is stored at room temperature 45℃ for standby; The preparation method of lime water is as follows: lime is put into tap water, stirred at 40 r / min for 15 min to obtain lime water; the mass ratio of lime to tap water is 0.4:6; Preparation of plant wood pulp: 30 parts of citronella, 6 parts of cotton, 38 parts of paulownia wood, 12 parts of corn cob are crushed by a crusher, and the materials are passed through a 700 mesh screen. The materials are put into a digester, 65 parts of lime water is added, the cooking pressure is 8 kg / cm2, the cooking temperature is 100℃, and the cooking time is 40 min. The flocculent material is taken out and added to a stirrer. 3 parts of chemical additives are added to the stirrer, and stirred at 20 r / min for 6 h to obtain plant wood pulp; Preparation of A fiber yarn: plant wood pulp is compressed, dehydrated and woven, and then an antioxidant coating agent with a thickness of 0.003 is sprayed on the surface of the plant wood pulp to obtain the preparation A fiber yarn; Preparation of spinning solution: 50 parts of 65% polyethylene aqueous solution, 4 parts of polyphosphate, 8 parts of urea-formaldehyde resin and 12 parts of solanum nigrum base are uniformly mixed and stored at 60°C to obtain the spinning solution; Preparation of B fiber yarn: the spinning solution is injected into an electrospinning device to obtain the B fiber yarn through an electrospinning process; Preparation of blending aid fiber: the A fiber yarn and the B fiber yarn are fed into a spinning machine in parallel, and the A fiber yarn and the B fiber yarn are intertwined to obtain the blending aid fiber (the cross-sectional radii of the A fiber yarn and the B fiber yarn are the same); Preparation of blending aid: 48 parts of acetic acid, 12 parts of cellulose, 8 parts of pectin and 10 parts of chondroitin sulfate are stirred at 55 r / min for 8 min at 60°C to obtain the blending aid; Preparation of fluidized solidified soil composite agent: the blending aid is placed in a blender and stirred at 42 r / min for 48 min, and then the blending aid fiber is added and stirred for 5 min to obtain the fluidized solidified soil composite agent (the mass ratio of the blending aid fiber to the blending aid is 1:4).

[0023] Performance test Preparation of A group experimental sample: the preparation raw materials of the soil base material include, by weight: 32 parts of cement, 8 parts of slag, 12 parts of gypsum, 9 parts of sand, 35 parts of river sand and 80 parts of tap water; the preparation process of the soil base material is as follows: the cement, slag, gypsum, sand and river sand are put into a blender, tap water is added, and stirring is performed at 35 r / min for 35 min to obtain the soil base material; the soil base material is mixed with the fluidized solidified soil composite agent prepared by the methods of examples 1-3 and comparative examples 1-4 to obtain the A group experimental sample (the mass ratio of the soil base material to the fluidized solidified soil composite agent is 60:1); Preparation of B group experimental sample: the preparation raw materials of the soil base material include, by weight: 32 parts of cement, 8 parts of slag, 12 parts of gypsum, 9 parts of black soil, 35 parts of river sand and 80 parts of tap water; the preparation process of the soil base material is as follows: the cement, slag, gypsum, black soil and river sand are put into a blender, tap water is added, and stirring is performed at 35 r / min for 35 min to obtain the soil base material; the soil base material is mixed with the fluidized solidified soil composite agent prepared by the methods of examples 1-3 and comparative examples 1-4 to obtain the B group experimental sample (the mass ratio of the soil base material to the fluidized solidified soil composite agent is 60:1).

[0024] The A group experimental sample and the B group experimental sample are tested for performance by the following method (1) The flowability of the experimental sample is tested according to the ASTM D6103 standard issued by the American Society for Testing Materials (ASTM). The required test equipment mainly includes a Φ80mm*80mm cylinder, a 50cm*50cm flat plate, a ruler, and the like. The maximum diameter of the collapsed sample and the diameter in the vertical direction are measured by the ruler, and the average value of the two is taken as the flowability of the cast experimental sample; (2) The curing and unconfined compressive strength test of the experimental sample is performed according to the Technical Specification for Bubble Mixed Light Soil Filling Engineering (CJJ / T177-2012) and the Standard Test Methods for Basic Properties of Building Mortar (JGJ / T70-2009). The unconfined compressive strength test of the experimental sample is performed. The test equipment mainly includes a UTM universal testing machine, a 100mm*100mm*100mm triple mold, a standard curing box, and the like. The loading speed is 1mm / min; The test results are shown in the following table As shown in the above table, in the A group of experimental samples, the flowability and unconfined compressive strength of the flowable solidified soil composite prepared by Examples 1-3 are not much different, and the difference between the examples and the comparative examples is large. The flowability and unconfined compressive strength of the soil base material are good when the flowable solidified soil composite prepared by Example 2 is added to the soil base material. In the B group of experimental samples, the flowability and unconfined compressive strength of the soil base material are also not much different when the flowable solidified soil composite prepared by Examples 1-3 is added to the soil base material. The flowability and unconfined compressive strength of the soil base material are good when the flowable solidified soil composite prepared by Example 2 is added to the soil base material. By comparing the A group of experiments and the B group of experiments, it can be seen that the flowability and unconfined compressive strength of the soil base material are not much different when Example 2 is placed in different soil base materials. Therefore, it can be seen that the flowable solidified soil composite prepared by the method of the present application is suitable for different soil qualities.

[0025] (3) 50g of Example 2 and Comparative Examples 1-2 in the A group of experimental samples are taken and laid flat on the experimental table to observe the dispersion of the B fiber filaments. By comparing Example 2 and Comparative Examples 1-4 one by one, it can be seen that the antioxidant coating agent prepared from sodium hyaluronate, dioscin and gum arabic can make the B fiber filaments disperse more uniformly in the soil base material after the A fiber filaments are coated, so that the effect of Example 2 is better.

[0026] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application.

Claims

1. A fluidified solidifying soil compound suitable for different soil types, characterized in that, The flowable solidified soil composite agent comprises: a mixing aid fiber and a mixing aid agent; The mixing aid fiber is spun by a textile machine so that A fiber filaments and B fiber filaments are intertwined, the length of the mixing aid fiber is cut to 0.1 mm, the A fiber filaments are prepared by spraying an antioxidant coating agent with a thickness of 0.003 on the surface of the A fiber filaments which are prepared by pressing, dehydrating and weaving plant wood pulp, and the B fiber filaments are prepared by electrospinning a spinning solution; The preparation raw materials of the plant wood pulp include, by weight, 20-35 parts of citronella, 5-8 parts of cotton, 30-45 parts of Paulownia wood, 10-15 parts of corn cob, 60-70 parts of lime water and 2-6 parts of chemical additives; and the preparation raw materials of the spinning solution include 40-52 parts of 65% polyethylene water solution, 3-6 parts of polyphosphate, 6-12 parts of urea-formaldehyde resin and 8-16 parts of solanum nigrum base.

2. The fluidified soil stabilizer for different soil types according to claim 1, wherein, The antioxidant coating agent is composed of, by weight, 12-18 parts of sodium hyaluronate, 1-4 parts of dioscin and 20-25 parts of gum arabic.

3. The fluidified soil stabilizer for different soil types according to claim 2, wherein The preparation process of the antioxidant coating agent is as follows: sodium hyaluronate and dioscin are mixed and placed in a crucible, heated to 55℃, gum arabic is added, stirred at 600-1000 r / min for 5-20 min to obtain the antioxidant coating agent, and the antioxidant coating agent is stored at room temperature of 45℃ for standby.

4. The fluidified soil stabilizer for different soil types according to claim 1, wherein The preparation raw materials of the mixing aid agent include, by weight, 40-55 parts of citric acid, 8-16 parts of cellulose, 5-10 parts of pectin and 6-12 parts of chondroitin sulfate.

5. The fluidified soil stabilizer for different soil types according to claim 1, wherein The preparation method of the lime water is as follows: lime is put into tap water, stirred at 20-60 r / min for 10-20 min to obtain the lime water; and the mass ratio of the lime to the tap water is 0.4:

6.

6. The fluidified soil stabilizer for different soil types according to claim 1, wherein The cross-sectional radii of the A fiber filaments and the B fiber filaments are the same; and the mass ratio of the mixing aid fiber to the mixing aid agent is 1:

4.

7. A method for preparing the fluidified soil stabilizer of any one of claims 1 to 6, which is applicable to different soil types, characterized in that, The method comprises the following steps: Preparation of plant wood pulp: citronella, cotton, Paulownia wood and corn cob are crushed by a crusher, and the crushed materials are passed through a 600-800 mesh screen, the materials are put into a digester, lime water is added, the cooking pressure is 5-10 kg / cm2, the cooking temperature is 80-120℃, and the cooking time is 30-50 min; the flocculent materials are taken out and added into a stirrer, chemical additives are added into the stirrer, and the materials are stirred at 15-25 r / min for 5-8 h to obtain the plant wood pulp; Preparation of A fiber filaments: the plant wood pulp is pressed, dehydrated and woven, and then an antioxidant coating agent is sprayed on the surface of the plant wood pulp to obtain the A fiber filaments; Preparation of a spinning solution: 65% polyethylene water solution, polyphosphate, urea-formaldehyde resin and solanum nigrum base are uniformly mixed and stored at 60℃ to obtain the spinning solution; Preparation of B fiber filaments: the spinning solution is injected into an electrospinning device to obtain the B fiber filaments by electrospinning; Preparation of mixing aid fiber: the A fiber filaments and the B fiber filaments are fed into a textile machine in parallel, and the A fiber filaments and the B fiber filaments are intertwined by spinning to obtain the mixing aid fiber; Preparation of mixing aid agent: citric acid, cellulose, pectin and chondroitin sulfate are stirred at 45-60 r / min for 5-10 min at 60℃ to obtain the mixing aid agent. Preparation of fluidified solidified soil composite agent: the mixing aid is put into a blender and stirred at 30-45 r / min for 45-50 min, and then the mixing aid fiber is added and stirred for 5 min to obtain the fluidified solidified soil composite agent.

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