Transportation method of a transportation pipeline structure for bionic worm creep extrusion solidified soil

Abstract

The present invention discloses a transportation method for a bionic worm creep extrusion type solidified soil transportation pipeline structure. It belongs to the fields of soil solidification and material transportation, etc., and is composed of equipment such as a rigid outer skeleton, a transmission connecting rod, and a ductile inner pipe. Its operation steps are as follows: According to the actual situation of the construction site and the transportation distance, set up the bionic worm creep extrusion type solidified soil transportation pipeline at the turning point or the undulating place, and fasten the two ends to the ordinary pipeline with hose clamps; set the motor rotation phase of each section of the bionic worm creep extrusion type solidified soil transportation pipeline; pump the mixed cement solidified soil at the starting point and start long-distance transportation; after one-time pouring is completed, it is necessary to pour clear water at the starting pumping point for pipeline cleaning to prevent the residual hardening of the cement solidified soil and block the pipeline. As an auxiliary equipment for the preparation method of the cement solidified soil, which is a filling material made from local materials and is green and environmentally friendly, the present invention can better apply it in the case of a narrow construction site, and has the characteristics of simple installation and construction and reliable performance.

Description

Technical Field

[0001] The invention belongs to the technical fields of soil solidification, material transportation, rapid construction, etc., and relates to a transportation method of a bionic worm creep extrusion type solidified soil transportation pipeline structure. Background Art

[0002] In urban construction, lightweight filling materials that need to be quickly filled and hardened are often required. If the waste soil at the construction site can be used for backfilling, it will be more economical and environmentally friendly. Therefore, a cement-based curing agent is often used as an additive to mix the poor waste soil at the site to make backfilling materials. Cement-solidified soil is a method for solidifying waste and also a method for harmless and stable treatment of hazardous waste. Cement is an inorganic cementing material that undergoes a hydration reaction when water is added and forms a hard cement block after the reaction. The cement solidification method is often used to solidify sludge containing harmful substances. Cement reacts with the water in the sludge to produce gelation, and the sludge particles containing harmful substances are respectively coated and gradually hardened. The structure of this solidified body mainly encloses the sludge particles between the 3CaO·SiO2 crystals generated by the cement hydration reaction. Therefore, even if the solidified body breaks or is crushed and immersed in water, the leachability of harmful substances can be reduced. However, cement-solidified soil often needs to reuse the waste soil at the construction site and carry out solidification treatment at the filling site, incorporate a cement-based curing agent and stir it on-site. Limited by the site topography and construction space, the cement-solidified soil after mixing needs to be transported over a long distance, and problems such as hardening and condensation or stratification and segregation may occur during the transportation process. In view of this problem, the invention pumps the cement-solidified soil completed by on-site mixing into a bionic worm creep extrusion type solidified soil transportation pipeline. During the straight-line transmission and pipeline turning on the way, the bionic worm creep extrusion type solidified soil transportation pipeline can actively push forward. After long-distance transportation, it reaches the filling construction site. It is particularly suitable as an auxiliary device for the preparation method of cement-solidified soil, which is a locally sourced and environmentally friendly filling material, in the backfilling project of renovation and expansion projects in existing urban building groups, and can better apply it in the case of narrow construction sites. Summary of the Invention

[0003] In view of the above problems, the object of the present invention is to disclose a bionic worm-like extrusion type solidified soil transportation pipeline structure and its transportation method. The transportation pipeline structure is composed of a rigid outer skeleton, a transmission connecting rod, and a flexible inner pipe. The rigid outer skeleton is composed of a plurality of symmetric skeleton units. The symmetric skeleton unit is composed of two semi-circular rigid rings that are mirror-symmetric and buckled together. The symmetric skeleton units are connected in series by transmission connecting rods. The outer wall of the flexible inner pipe is fixed on the semi-circular rigid rings of the symmetric skeleton unit and can move along with the semi-circular rigid rings. This bionic worm-like extrusion type solidified soil transportation pipeline is used for the long-distance transportation of cement solidified soil with high viscosity, which can accelerate the transportation speed of the cement solidified soil and prevent the coagulation, hardening, or layering and segregation of the mixed cement solidified soil in the transportation pipeline. It solves the transportation problem of cement solidified soil between large mixing sites and filling locations, saves construction costs, has less environmental residue, and is green and environmentally friendly.

[0004] The technical solution of the present invention: A bionic worm-like extrusion type solidified soil transportation pipeline structure according to the present invention includes a symmetric skeleton unit, an axial deflection reference fixing piece, a reference fixing shaft, a radial movement limiting transmission rod, a transmission connecting rod, and a flexible inner pipe;

[0005] The symmetric skeleton unit is formed by buckling two mirror-symmetric semi-circular rigid rings together. Each semi-circular rigid ring includes upper and lower parts, which are hinged together through radially arranged movement hinges;

[0006] Axial deflection shaft holes are provided on the upper parts of the two semi-circular rigid rings, and a rivet shaft is inserted through the axial deflection shaft holes. The upper parts of the two semi-circular rigid rings are connected in series through the inserted rivet shaft.

[0007] Further, an axial deflection reference fixing piece is clamped between the upper parts of the two semi-circular rigid rings,

[0008] The axial deflection reference fixing piece is a sheet-like metal piece with upper and lower holes, and each symmetric skeleton unit is provided with one axial deflection reference fixing piece;

[0009] A lower circular hole is provided at the lower end of the axial deflection reference fixing piece and is adapted to the axial deflection shaft hole. The rivet shaft fixes and rivets the axial deflection reference fixing piece and the two semi-circular rigid rings together through the axial deflection shaft holes on both sides and the lower circular hole in the middle;

[0010] An upper circular hole is also provided at the upper end of the axial deflection reference fixing piece,

[0011] A reference fixing rivet is installed in the upper circular hole, and the axial deflection reference fixing piece is connected to the installed reference fixing shaft through the reference fixing rivet.

[0012] Further, the reference fixed shaft is a two-piece metal strip structure, which sandwiches and fixes the axial deflection reference fixing piece in the middle through a reference fixing rivet, and sequentially connects the axial deflection reference fixing pieces of several adjacent symmetrical skeleton units together.

[0013] Further, corresponding radial movement limiting shaft slots are provided in the lower parts of the two semi-circular rigid rings;

[0014] A radial movement limiting transmission rod is installed between the lower parts of the two semi-circular rigid rings,

[0015] The radial movement limiting transmission rod includes a through-hole in the middle thereof,

[0016] Cylindrical limiting shafts symmetrically extend from both ends of the side of the through-hole, and anti-drop ball heads are installed at the tops of the cylindrical limiting shafts;

[0017] The two cylindrical limiting shafts of the radial movement limiting transmission rod are connected and fitted in the radial movement limiting shaft slots provided on a pair of semi-circular rigid rings;

[0018] Wherein, the outer diameter of the through-hole is larger than the thickness of the axial deflection reference fixing piece.

[0019] Further, a transmission connecting rod is passed through the through-hole;

[0020] The transmission connecting rod is made of a metal round rod material, and it passes through and is fixed in the through-holes of each radial movement limiting transmission rod;

[0021] Plane circle rotation motors are connected to both ends of the transmission connecting rod, so that any point on the transmission connecting rod can perform circular motion in the axial plane, driving the symmetrical skeleton unit to perform reciprocating motion along the axial deflection shaft hole, and driving the radial movement limiting transmission rod to perform reciprocating motion along the radial movement limiting shaft slot.

[0022] Further, a flexible inner tube is also installed at the other end of the two semi-circular rigid rings,

[0023] The flexible inner tube is fixed on the arc part on one side of the symmetrical skeleton unit;

[0024] A one-way burr layer is also installed on the inner wall of the flexible inner tube.

[0025] Further, a transportation method for a bionic worm creeping extrusion type solidified soil transportation pipeline structure is as follows:

[0026] 1), According to the actual situation of the construction site and the transportation distance, set the bionic worm creeping extrusion type solidified soil transportation pipeline at the turning point or the undulating part, and tie the two ends to the ordinary pipeline with hose clamps;

[0027] 2), Set the motor rotation phase of each section of the bionic worm creep extrusion type solidified soil transportation pipeline;

[0028] Among them, the phases of adjacent sections are opposite, that is, in one of the adjacent two sections, it is in the state of clamping and forward feeding, and the other is in the state of relaxing and resetting, pushing the solidified soil material in the pipeline forward;

[0029] 3), Pump the mixed cement solidified soil at the starting point and start long-distance transportation;

[0030] 4), After one-time pouring is completed, clean water must be poured into the starting pumping point for pipeline cleaning to prevent the residual hardening of the cement solidified soil and block the pipeline.

[0031] The beneficial effects of the present invention are as follows: The present invention can solve the transportation problem of cement solidified soil between large mixing sites and filling sites, and is particularly suitable as an auxiliary device for the preparation method of the locally sourced and green environmental protection filling material of cement solidified soil in the backfill projects of renovation and expansion projects in existing urban building groups, and can better apply it in the case of narrow construction sites, such as the backfill projects after the excavation of urban utility tunnels, the backfill projects of urban open-cut tunnel underground projects, urban landscape stacking, and the backfill projects of inland waterway revetments. It has the characteristics of simple installation and construction, reliable performance, and green environmental protection. Description of the Drawings

[0032] Figure 1 is a schematic diagram of the relaxation of the symmetric skeleton unit in the embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the clamping of the symmetric skeleton unit in the embodiment of the present invention;

[0034] Figure 3 is a side schematic diagram of the relaxation of the symmetric skeleton unit in the embodiment of the present invention;

[0035] Figure 4 is a side schematic diagram of the clamping and forward feeding of the symmetric skeleton unit in the embodiment of the present invention;

[0036] Figure 5 is an overall schematic diagram of the relaxation and resetting of the bionic worm creep extrusion type solidified soil transportation pipeline in the embodiment of the present invention;

[0037] Figure 6 is an overall schematic diagram of the clamping and forward feeding of the bionic worm creep extrusion type solidified soil transportation pipeline in the embodiment of the present invention;

[0038] Among them, 1 is a symmetric skeleton unit, 2 is a semi-circular rigid ring, 3 is an axially deflected shaft hole, 4 is a radially moving hinge, 5 is a radially moving limit shaft groove hole, 6 is a rivet shaft, 7 is an axially deflected reference fixing piece, 8 is an upper circular hole, 9 is a lower circular hole, 10 is a reference fixing rivet, 11 is a reference fixing shaft, 12 is a radially moving limit transmission rod, 13 is a through-shaft hole, 14 is a cylindrical limit shaft, 15 is an anti-disengagement ball head, 16 is a transmission connecting rod, and 17 is a flexible inner tube. Detailed implementation mode

[0039] In order to more clearly illustrate the technical solutions of the present invention, the technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings:

[0040] A bionic worm creeping extrusion type solidified soil transportation pipeline structure described in the present invention has an overall structure including approximately six parts: a symmetric skeleton unit 1, an axially deflected reference fixing piece 7, a reference fixing shaft 11, a radially moving limit transmission rod 12, a transmission connecting rod 16, and a flexible inner tube 17;

[0041] The symmetric skeleton unit 1 is formed by buckling two mirror-symmetric semi-circular rigid rings 2. Each semi-circular rigid ring 2 includes upper and lower parts, and they are hinged together through the radially moving hinge 4 arranged thereon;

[0042] Axially deflected shaft holes 3 are opened on the upper parts of the two semi-circular rigid rings 2. A rivet shaft 6 is inserted through the axially deflected shaft holes 3, and the upper parts of the two semi-circular rigid rings 2 are strung together through the arranged rivet shaft 6;

[0043] Specifically, each semi-circular rigid ring 2 has an axially deflected shaft hole 3, a radially moving hinge 4, and a radially moving limit shaft groove hole 5. Each semi-circular rigid ring 2 is composed of two parts hinged together. The upper part is shorter and cannot perform radial movement; the lower part is a radially moving limit shaft groove hole 5 and an arc, and the upper part and the lower part are hinged through the radially moving hinge 4;

[0044] The two semi-circular rigid rings 2 are strung together in the form of a rivet shaft 6 through the axially deflected shaft holes 3. When being strung together, an axially deflected reference fixing piece 7 is sandwiched between the two semi-circular rigid rings 2, and the rivet shaft 6 also passes through the lower circular hole on the axially deflected reference fixing piece 7, so that the symmetric skeleton unit 1 can perform an overall axial deflection movement around the rivet shaft 6.

[0045] Furthermore, an axially deflected reference fixing piece 7 is sandwiched between the upper parts of the two semi-circular rigid rings 2,

[0046] The axially deflected reference fixing piece 7 is a sheet metal piece with upper and lower holes opened thereon, and each symmetric skeleton unit 1 is provided with one axially deflected reference fixing piece 7;

[0047] At the lower end of the axial deflection reference fixing piece 7, at a position adapted to the axial deflection shaft hole 3, a lower circular hole 9 is provided, and the rivet shaft 6 fixes and rivets the axial deflection reference fixing piece 7 and two semi-circular hard rings 2 together through the axial deflection shaft holes 3 on both sides and the lower circular hole 9 in the middle;

[0048] An upper circular hole 8 is also provided at the upper end of the axial deflection reference fixing piece 7,

[0049] A reference fixing rivet 10 is installed in the upper circular hole 8, and the axial deflection reference fixing piece 7 is connected to the installed reference fixing shaft 11 through the reference fixing rivet 10;

[0050] Specifically, the upper circular hole 8 of the axial deflection reference fixing piece 7 is connected with a reference fixing rivet 10, and all the axial deflection reference fixing pieces 7 are connected to the reference fixing shaft 11 through the reference fixing rivets 10, cannot move, and cannot rotate around the reference fixing rivet 10. The lower circular hole 9 of the axial deflection reference fixing piece 7 is used to rivet two semi-circular hard rings 2.

[0051] Furthermore, the reference fixing shaft 11 is a structure of two long metal sheets. It sandwiches and fixes the axial deflection reference fixing piece 7 through the reference fixing rivet 10, and sequentially connects the axial deflection reference fixing pieces 7 of several adjacent symmetric skeleton units 1 together;

[0052] Specifically, the reference fixing shaft 11 sandwiches and fixes the axial deflection reference fixing piece 7 through the reference fixing rivet 10, and sequentially connects the axial deflection reference fixing pieces 7 of several adjacent symmetric skeleton units 1 together.

[0053] Furthermore, radially moving limit shaft groove holes 5 are correspondingly provided at the lower parts of the two semi-circular hard rings 2;

[0054] A radially moving limit transmission rod 12 is installed between the lower parts of the two semi-circular hard rings 2,

[0055] The radially moving limit transmission rod 12 includes a through-hole shaft hole 13 opened in the middle thereof,

[0056] Cylindrical limit shafts 14 symmetrically extend at both ends on the side of the through-hole shaft hole 13, and anti-drop ball heads 15 are installed at the tops of the cylindrical limit shafts 14;

[0057] The two cylindrical limit shafts 14 of the radially moving limit transmission rod 12 are connected and fitted in the radially moving limit shaft groove holes 5 on a pair of semi-circular hard rings 2;

[0058] Among them, the outer diameter of the through-hole shaft hole 13 is larger than the thickness of the axial deflection reference fixing piece 7;

[0059] Specifically, there is a through-axis hole 13 in the middle of the radial movement limiting transmission rod 12. Cylindrical limiting shafts 14 symmetrically protrude from both ends on the side of the through-axis hole 13, and an anti-disengagement ball head 15 is provided at the top. The two cylindrical limiting shafts 14 of the radial movement limiting transmission rod 12 are connected and fitted in the radial movement limiting shaft slot holes 5 on a pair of semi-circular rigid rings 2, so that when the radial movement limiting transmission rod 12 moves up and down, it can move back and forth in the radial movement limiting shaft slot holes 5, thereby causing the lower half of the semi-circular rigid ring 2 to perform a radial opening and closing movement along the radial movement hinge 4.

[0060] Further, a transmission connecting rod 16 is inserted through the through-axis hole 13;

[0061] The transmission connecting rod 16 is made of a metal round rod material, and it passes through and is fixed to the through-axis hole 13 of each radial movement limiting transmission rod 12;

[0062] Planar circle rotating motors are connected to both ends of the transmission connecting rod 16, so that any point on the transmission connecting rod 16 can perform a circular motion in the axial plane, driving the symmetric skeleton unit 1 to perform a reciprocating motion along the axial deflection shaft hole, and driving the radial movement limiting transmission rod 12 to perform a reciprocating motion along the radial movement limiting shaft slot hole 5;

[0063] Specifically, the transmission connecting rod 16 is a metal round rod, which passes through and is fixed to the through-axis hole 13 of each radial movement limiting transmission rod 12. Planar circle rotating motors are connected to both ends of the transmission connecting rod 16, so that any point on the transmission connecting rod 16 can perform a circular motion in the axial plane, thereby driving the symmetric skeleton unit 1 to perform a reciprocating motion along the axial deflection shaft hole, and driving the radial movement limiting transmission rod 12 to perform a reciprocating motion along the radial movement limiting shaft slot hole 5.

[0064] Further, a flexible inner tube 17 is also installed at the other end of the two semi-circular rigid rings 2,

[0065] The flexible inner tube 17 is fixed on the arc part on one side of the symmetric skeleton unit 1;

[0066] A one-way burr layer is also installed on the inner wall of the flexible inner tube 17;

[0067] Specifically, the flexible inner tube 17 is fixed on the arc part of the symmetric skeleton unit 1, and can be squeezed and expanded and stretched and contracted. There is a one-way burr layer on the inner wall of the flexible inner tube 17, which is beneficial to the conveyance of the content substance in one direction.

[0068] Further, a conveying method for a bionic worm peristaltic extrusion type solidified soil conveying pipeline is as follows:

[0069] 1), According to the actual situation of the construction site and the conveying distance, set the bionic worm creep extrusion type solidified soil transport pipeline at the turning point or the undulating place, and tie the two ends to the ordinary pipeline with hose clamps;

[0070] 2), Set the motor rotation phase of each section of the bionic worm creep extrusion type solidified soil transport pipeline, and pay attention that the phases of adjacent sections are opposite, that is, in one of the adjacent two sections, it is feeding forward before clamping, and in the other section, it is relaxing and resetting to push the solidified soil material in the pipeline forward;

[0071] 3), Pump the mixed cement solidified soil at the starting point and start long-distance transportation;

[0072] 4), After one-time pouring is completed, clean water must be poured into the starting pumping point to clean the pipeline to prevent the residual hardening of the cement solidified soil and block the pipeline. Embodiment

[0073] A certain high-rise residential complex project consists of 28 floors, with 2 underground floors as garages and equipment rooms; the west and north of the project are adjacent to the streets, and there are already facade houses and self-built houses for residents on the south and east. The outer side line of the south side of the basement is 0.8m away from the facade house, and the outer side line of the north side of the basement is 1.2m away from the roadside rubble wall. The construction site is extremely narrow and there is no soil stacking site. The excavated soil must be transported out of the site in time; the transportation method using the bionic worm creep extrusion type solidified soil transport pipeline structure of the present invention is adopted, and two-way two pipelines with a diameter of 0.4m for bionic worm creep extrusion type solidified soil transport are arranged on the east side in the foundation pit, which are respectively used to transport the excavated soil out of the site and transport the cement soil into the site.

[0074] Finally, it should be understood that the embodiments described in the present invention are only used to illustrate the principles of the embodiments of the present invention; other deformations may also fall within the scope of the present invention; therefore, as an example rather than a limitation, the alternative configurations of the embodiments of the present invention can be regarded as consistent with the teachings of the present invention; accordingly, the embodiments of the present invention are not limited to the embodiments clearly introduced and described in the present invention.

Claims

1. A bionic worm-like extrusion type solidified soil transportation pipeline structure, comprising a symmetric skeleton unit (1), an axial deflection reference fixing piece (7), a reference fixing shaft (11), a radial movement limiting transmission rod (12), a transmission connecting rod (16) and a flexible inner pipe (17), characterized in that the symmetric skeleton unit (1) is formed by buckling two mirror-symmetric semi-circular hard rings (2), and each semi-circular hard ring (2) comprises an upper part and a lower part, and the upper part and the lower part are hinged and connected through a radially moving hinge (4) arranged thereon; axial deflection shaft holes (3) are respectively opened on the upper parts of the two semi-circular hard rings (2), and a rivet shaft (6) is penetrated in the axial deflection shaft holes (3), and the upper parts of the two semi-circular hard rings (2) are connected in series through the rivet shaft (6) arranged thereon; an axial deflection reference fixing piece (7) is clamped between the upper parts of the two semi-circular hard rings (2); the axial deflection reference fixing piece (7) is a sheet-shaped metal piece with two upper and lower holes, and each symmetric skeleton unit (1) is provided with one axial deflection reference fixing piece (7); a lower circular hole (9) is opened at the lower end of the axial deflection reference fixing piece (7) and adapted to the axial deflection shaft hole (3), and the rivet shaft (6) fixes and rivets the axial deflection reference fixing piece (7) and the two semi-circular hard rings (2) together through the axial deflection shaft holes (3) on both sides and the lower circular hole (9) in the middle; an upper circular hole (8) is further opened at the upper end of the axial deflection reference fixing piece (7); a reference fixing rivet (10) is arranged in the upper circular hole (8), and the axial deflection reference fixing piece (7) is connected to the arranged reference fixing shaft (11) through the reference fixing rivet (10); radial movement limiting shaft slot holes (5) are correspondingly opened on the lower parts of the two semi-circular hard rings (2); a radial movement limiting transmission rod (12) is arranged between the lower parts of the two semi-circular hard rings (2); the radial movement limiting transmission rod (12) comprises a through-hole (13) opened in the middle thereof; cylindrical limiting shafts (14) symmetrically extend at both ends on the side of the through-hole (13), and anti-detachment ball heads (15) are arranged at the tops of the cylindrical limiting shafts (14); the two cylindrical limiting shafts (14) of the radial movement limiting transmission rod (12) are connected and fitted in the radial movement limiting shaft slot holes (5) opened on a pair of semi-circular hard rings (2); wherein, the outer diameter of the through-hole (13) is larger than the thickness of the axial deflection reference fixing piece (7); a transmission connecting rod (16) is penetrated in the through-hole (13); the transmission connecting rod (16) is a metal round rod, and it passes through the through-hole (13) of each radial movement limiting transmission rod (12) and is fixed; Plane circular rotation motors are connected to both ends of the transmission connecting rod (16), so that any point on the transmission connecting rod (16) can perform circular motion in the axial plane, driving the symmetric framework unit (1) to reciprocate along the axial deflection shaft hole (3), and driving the radial motion limiting transmission rod (12) to reciprocate along the radial motion limiting shaft slot hole (5); At the other ends of the two semi-circular rigid rings (2), a flexible inner tube (17) is also installed. The flexible inner tube (17) is fixed on the arc part on one side of the symmetric framework unit (1); A one-way burr layer is also installed on the inner wall of the flexible inner tube (17).

2. The structure of a bionic worm peristaltic extrusion type solidified soil transportation pipeline according to claim 1, characterized in that The reference fixed shaft (11) is a structure of two long metal sheets, which sandwich the axial deflection reference fixing piece (7) in the middle through the reference fixed rivet (10) and connect the axial deflection reference fixing pieces (7) of several adjacent symmetric framework units (1) together in sequence.

3. A transportation method for a transportation pipeline structure of a bionic worm creep extrusion type solidified soil, as described in any one of claims 1-2, characterized in that, The specific operation steps are as follows: 1), According to the actual situation of the construction site and the transportation distance, set the bionic worm peristaltic extrusion type solidified soil transportation pipeline at the turning point or the undulating place, and tie the two ends to the ordinary pipeline with hose clamps; 2), Set the motor rotation phase of each section of the bionic worm peristaltic extrusion type solidified soil transportation pipeline; Among them, the phases of adjacent sections are opposite, that is, in one of the adjacent two sections, it is in the state of clamping and feeding forward, and the other section is in the state of relaxing and resetting, pushing the solidified soil material in the pipeline forward; 3), Pump the mixed cement solidified soil at the starting point and start long-distance transportation; 4), After one-time pouring is completed, clean water must be poured into the starting pumping point to clean the pipeline to prevent the residual hardening of the cement solidified soil and block the pipeline.

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