CN217053302U - Ground firmware prestressing force retaining structure and shaping module thereof - Google Patents

Abstract

The utility model provides a ground firmware prestressing force retaining structure and shaping module thereof, prestressing force mainly obtains through the overall dimension that vibration pressurization changed ground firmware, and bag top cap seals locking structure and cross locking structure and cooperates jointly to keep prestressing force. The utility model overcomes the problems of low bearing capacity, large deformation of the bag body, non-standard construction, limited application range, construction quality stability caused by non-standard forced pressurization of conventional ground firmware and the like of the prior earth work bag; the upgrading and innovation of conventional firmware and traditional geotextile bags are realized, the purposes and functions of the geotextile bags are expanded, and more reliable guarantee is provided for improving the efficiency and quality of soft foundation reinforcement treatment.

Description

Ground firmware prestressing force retaining structure and shaping module thereof

Technical Field

The utility model relates to a civil engineering technical field is a ground firmware prestressing force retaining structure and shaping module that is used for soft foundation reinforcement to handle particularly.

Background

In the prior art, the earth bag formed by filling earth stones into the woven geotextile bags is long-term applied in the engineering field and is often used for flood control and emergency rescue or soil retaining structures. Research shows that the geotextile bag has the following characteristics in engineering application: the earth work bag is easy to deform, and can generate larger deformation or bag body fracture on a relatively rigid foundation; when the geotextile bag is used for soft foundation treatment, the foundation bearing capacity can be improved to a certain degree, and the foundation settlement is improved; for soil and stone materials with different grain sizes and grading, the earth bag also has the anti-freezing function and the foundation vibration reduction effect in cold areas; and fourthly, the foundation reinforced by the geotextile bag does not use any curing agent or chemical agent, and cannot cause secondary pollution to water and soil.

However, the traditional earth work bag can not restrain the relatively fixed shape of the bag body, the bag body is easy to break, the bearing capacity is unstable, and the application range and the popularization of the earth work bag are seriously limited; and because the compactness of the filler in the geotextile bag is uneven, the instability of the strength and the rigidity of the geotextile bag can be caused, and the technical indexes such as bearing capacity, sedimentation deformation and the like are influenced. For this reason, the engineering community requires standardized ground fastener structures that can maintain prestress.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a relatively standardized ground firmware prestress maintaining structure and a molding module thereof. The method comprises the following specific steps:

the prestressed retaining structure of the ground fixing part comprises a bag provided with a truss belt, a base belt, a sling body and an upper cover, wherein the bag is internally wrapped with a filling material, two upper covers opposite to the opening of the bag are correspondingly and fixedly connected with a plurality of strip-shaped sealing belts, each sealing belt is also fixedly connected with a locking ring, and the two corresponding locking rings are connected through a penetrating connecting rope in a tensioning manner and lock the tension; the locking device comprises two locking belts, each locking belt tightens the top surface, the pair of opposite side surfaces and the bottom surface of the outer part of the binding pocket respectively, and the two locking belts vertically intersect at the center of the top surface and the bottom surface of the pocket.

The lower part of the sling body close to the bottom surface of the bag is provided with a through gap, the two locking belts cross and penetrate through the lower part of the sling body, penetrate through the gap, then are bent upwards and are attached to the outer side of the sling body, two sections of the ground fastener exposed out of each locking belt respectively extend in opposite directions to surround the ground fastener, so that the two locking belts tighten and tie the top surface, a pair of opposite side surfaces and the bottom surface outside the bag respectively, and the two locking belts are vertically intersected at the centers of the top surface and the bottom surface of the bag.

Two ends of each locking belt are respectively provided with a locking ring, and two locking rings of the same locking belt are penetrated through the two locking rings by a connecting rope and tightened and connected in a locking way.

Two sections of each locking belt exposed out of the ground fixing piece are bent and penetrate through the hanging part of the hanging belt body, and then extend towards opposite directions to surround the ground fixing piece.

The suspender body is formed by combining two independent suspenders, each suspender is respectively bent in the middle to form a hanging bending section, the hanging bending sections of the two suspenders are crossed to form a hanging part of the suspender body, which is positioned at the upper part, and two ends of each suspender are respectively bent to form end bending parts and are fixedly connected with the center of the bottom surface of the bag; the two hanging strips are positioned in the middle of the hanging strip body and are fixedly connected with one end of the truss strip on the corresponding side and the surrounding hanging strip fixing strip through sewing, the truss strip is clamped between the hanging strips and the hanging strip fixing strip, and the hanging strip body forms a square column shape; the adjacent two hanging strips between the hanging strip fixing belt and the end bending part are not sewed, so that a passing gap for the passing of the locking strip is formed, and two passing gaps at the diagonal positions are used for the passing of one locking strip.

The forming module is used for forming the ground firmware prestress maintaining structure and comprises a pre-forming cavity and a plastic cavity; the pre-forming cavity mainly comprises a pre-forming side frame and a pre-forming bottom plate which are fixedly connected, and the plastic-forming cavity mainly comprises a plastic-forming side frame and a plastic-forming bottom plate which are fixedly connected; the preforming mold cavity and the molding mold cavity are respectively a box body which is roughly in a square or cuboid shape as a whole and is provided with an upward opening, the area of a plate body of the preforming bottom plate is smaller than that of the molding bottom plate, and the height of the preforming side frame is larger than that of the molding side frame; bosses for providing a forming foundation for forming a tapered groove at the bottom of a ground firmware are fixedly arranged in the middle of the upper surfaces of the plate bodies of the preforming bottom plate and the molding bottom plate, and the size of the preforming boss is the same as that of the molding boss; or the bottom surface area of the molding boss is larger than that of the preforming boss, and the height of the molding boss is set to be smaller than that of the preforming boss.

The utility model overcomes the problems of low bearing capacity, large deformation of the bag body, non-standard construction, limited application range, construction quality stability caused by non-standard forced pressurization of conventional ground firmware and the like of the prior earth work bag; the upgrading and innovation of conventional firmware and traditional geotextile bags are realized, the purposes and functions of the geotextile bags are expanded, and more reliable guarantee is provided for improving the efficiency and quality of soft foundation reinforcement treatment; the friction force between the filling materials formed by vibration energy is converted into heat energy and is dissipated, so that the filling materials have the functions of absorbing shock and reducing noise, particles are limited to move in a constraint space through a retaining structure, and the friction force between the particles and the restriction of shape difference are generated, so that the cohesive force of the filling materials and the self strength of the geotextile bag are improved, the application effect of the geotextile bag is effectively improved, the application range of the geotextile bag is expanded, and the geotextile bag can be applied to the reinforcement of a building foundation and a roadbed, a side slope supporting structure and the masonry material of a retaining wall (retaining embankment).

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

FIG. 1 is a schematic view of an empty ground fastener pouch;

FIG. 2 is a view of the connection of the truss, harness and substrate belts;

FIG. 3 is a schematic view of two locking straps passing through a gap formed in the lower portion of the harness body above the center of the bottom surface of the pouch;

FIG. 4 is a schematic view showing two locking bands crossing the lower portion of the harness body, passing through the gap, bending upward and attaching to the outer side of the harness body;

FIG. 5 is a three-dimensional structure comparison diagram of the pre-forming cavity and the molding cavity of the molding module;

FIG. 6 is a top and side comparison view of a pre-forming cavity and a molding cavity of a molding module;

FIG. 7 is a schematic view of the bladder in the preform cavity and filled with a filler material;

FIG. 8 is a schematic view showing the state of closing and tightening the upper lid of the bag;

FIG. 9 is a schematic view of the ground fastener after being deformed by pressure in the molding cavity;

FIG. 10 is a schematic view of an embodiment in which a hoist is used to pull a harness body upward;

FIG. 11 is a schematic view of the locking strap locking structure locking and retaining the tension of the ground engaging member;

FIG. 12 is a schematic view of a single locking strap and strap passing through the locking and encircling fastener;

FIG. 13 is a schematic view showing the effect of the deformation of the ground fastener under pressure on the tension of the base fabric of the bag.

The main reference numbers in the figures: 1-ground firmware; 11-a pouch; 12-a substrate tape; 121-truss belts; 123-center lift belt; 13-sealing tape; 14-sealing zipper; (ii) a 16-a harness body; 17-end reinforcing interconnecting rings; 131-a locking ring; 132-a fastening buckle; 133-connecting ropes;

31-a pre-forming cavity, 311-a pre-forming side frame, 312-a pre-forming bottom plate, 313-a pre-forming boss; 32-molding cavity, 321-molding side frame, 322-molding bottom plate, 323-molding boss;

the tension of the bag belt base cloth of the T-ground firmware; 41-vibration pressure acting on the ground fixture; 42-ground firmware bottom reaction force PN; 43-tapered slot; 44-a filler material;

5-a locking belt; 51-a locking ring; 53-fastening the button;

f-stretching force; 61-component of the action of the suspension and base belts;

v-pressure vibration force; 71-state of the time firmware when laid; 72-laying reserved seams of the ground firmware; 73-ground fixing member state after being deformed by pressure vibration.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The ground fastener 1 comprises a pocket 11. The pouch 11 is used to enclose the filling material 44 inside.

As shown in fig. 1, the pouch 11 is formed in a square or rectangular parallelepiped shape; the opening of the bag 11 is located at the upper end, filling material can be conveniently poured when the opening is opened, after filling material 44 is poured, the opening of the bag can be covered and sealed after four upper covers 111 are bent and butted, the area of each upper cover 111 is approximately half of the area of the top surface of the bag, taking two upper covers respectively located on the left and right as an example, after the two upper covers are bent and butted, the opening of the top surface can be covered and sealed just, and similarly, the two upper covers located on the front side and the rear side are bent and butted to cover the left and right upper covers which are bent and butted.

The base strips 12 are fixed to the bottom of the bag by sewing or the like, each base strip connects two opposite vertices of the bottom of the bag, and the two base strips 12 intersect at the center of the bottom.

The suspender body 16 is a stressed member for hoisting the whole of the ground fastener; the bottom end of the suspender body is fixedly connected with the center of the bottom surface of the bag, preferably, the bottom end of the suspender body is fixedly connected with the intersection of the two base belts at the center of the bottom surface of the bag; the bag is characterized by further comprising a plurality of truss belts 121, wherein one end of each truss belt 121 is fixedly connected to the bottom surface of the bag where the base belt located at the intersection of the bottom surface vertex and the two base belts is located, and the other end of each truss belt 121 is fixedly connected to the middle part of the sling body 16; as shown in fig. 8, the hanging portion 160 at the upper portion of the harness body 16 passes through the four-piece cover to cover the gap at the center of the top surface of the pouch when closed and protrudes from the top end of the pouch.

The filling material 44 can be a mixture of graded crushed stone, sand, recycled concrete aggregate, steel slag, light material, elastic material, and the like, or a mixture of several of them; if the filling material 44 is foundation soil, soil hardening agent is added to be mixed and stirred to prepare solidified soil. The filling material 44 can achieve a high cohesion under the pre-stress of the capsular bag 11.

The bag 11 is made of high-strength plastic fiber woven cloth with super weather resistance and corrosion resistance through cutting and sewing; the base belt and the truss belt are belts woven by high-strength plastic fibers with super weather resistance and corrosion resistance; the bag, the base belt and the truss belt have certain elasticity and higher tensile strength, can resist the corrosion of ultraviolet rays, nuclear rays, seawater, saline-alkali soil, acidic substances, frozen soil and the like, and has durability of more than 50 years under the condition of keeping out of the sun.

The prestress is the acting force for tightening the bag wrapped by the filling material 44, the base belt and the truss belt thereof; the main prestress part is obtained by vibrating and pressurizing in a molding and shaping cavity and changing the external dimension of a ground fastener; one part of the prestress enables the ground fixing piece to be deformed, obtained and locked through the self-weight effect when the ground fixing piece is hung; the other part of the prestress is obtained by pressing, vibrating and pressurizing the ground fixing piece to deform the ground fixing piece when the ground fixing piece is laid on a foundation. The prestress can be locked and maintained by the locking structure.

The locking structure for prestress retention provided by the present invention comprises two locking belts 5, see the connection structure diagram of the truss belt, the hanging belts and the base belt shown in fig. 2, in this embodiment, the hanging belt body 16 is formed by combining two independent hanging belts 161, 162, each hanging belt is respectively bent in the middle to form hanging bending sections 1610, 1620, the hanging bending sections of the two hanging belts are crossed to form the hanging part 160 of the hanging belt body located at the upper part, that is, the hanging part of the hanging ring for the hanging hook to pass through is formed by crossing and bending the two hanging belts; in fig. 2, the two ends of each sling 161, 162 are respectively bent to form end bending parts 1611, 1621 and are fixedly connected with the center of the bottom surface of the bag by sewing, and the two end bending parts 1611, 1621 of the sling 161 and 162 are respectively bent towards the outer side of the sling body, so as to facilitate the sewing of the bottom surface of the bag and the base belt 12; the two hanging straps 161 and 162 are respectively fixedly connected with one end of the truss strap 121 on the corresponding side and the surrounded hanging strap fixing strap 124 at the middle part (i.e. between the hanging bent sections 1610 and 1620 and the lower part) of the hanging strap body by sewing, the truss strap is clamped between the hanging strap and the hanging strap fixing strap 124, and the hanging strap body forms a square column shape; the two adjacent straps between the strap fixing band 124 and the end bending part are not sewed, so that a passing gap 1612 for the locking band to pass through is formed, namely a passing gap 1612 for two locking bands 5 to pass through and cross at the lower part of the strap body is formed at the lower part of the strap body, and two passing gaps at the diagonal positions are used for one locking band to pass through, which is shown in a schematic diagram of the passing gap formed by the two locking bands passing through the lower part of the strap body above the center of the bottom surface of the bag in fig. 3; two ends of each locking belt 5 are respectively bent and sewn to form a locking ring 51, the locking ring is used for penetrating through the connecting rope, and the specific locking mode is described later.

The utility model also provides an embodiment of shaping module for adopt the prestressing force loading method of vibration pressurization and quantification size restraint to make prestressing force holding formula ground firmware.

As shown in fig. 5, the molding die set includes a preform cavity 31 shown in fig. 5 (a) and a molding cavity 32 shown in fig. 5 (B). The ground fixing member 3 is preliminarily molded in the pre-molding cavity 31, transferred into the molding cavity 32, remolded by pressure vibration deformation, and then shaped.

The pre-forming cavity 31 is mainly composed of a pre-forming side frame 311 and a pre-forming bottom plate 312 which are fixedly connected, and the molding cavity 32 is mainly composed of a molding side frame 321 and a molding bottom plate 322 which are fixedly connected.

The shape of the inner space of the pre-forming cavity 31 and the molding cavity 32 determines the external dimension of the ground fixing part after the corresponding process is completed inside the pre-forming cavity 31 and the molding cavity 32, the pre-forming cavity 31 and the molding cavity 32 are respectively a box body which is roughly square or cuboid as a whole and has an upward opening, and the pre-forming side frame 311 and the molding side frame 321 are used for restraining four side surfaces of the bag 31 of the surrounding and blocking ground fixing part 3; the preforming bottom plate 312 of the preforming cavity 31 and the molding bottom plate 322 of the molding cavity 32 are respectively a square or rectangular plate, the upper surface of the plate may be a flat plane, or a tapered boss protruding upward may be formed in the middle of the upper surface, specifically, the shape of the bottom surface of the final molding of the floor fastener may be determined according to the shape of the bottom surface of the final molding of the floor fastener, in this embodiment, the tapered groove (or referred to as a tapered recess) recessed upward is formed in the middle of the bottom surface of the final molding of the floor fastener, that is, the bosses are fixedly disposed in the middle of the upper surfaces of the plate of the preforming bottom plate 312 and the molding bottom plate 322, and the bosses are used for providing a molding basis for forming the tapered groove in the bottom of the floor fastener.

The pre-forming boss 313 and the molding boss 323 have the same size, and as shown in fig. 6 (a2) and (B2), the bottom surfaces of the pre-forming boss and the molding boss have the same shape and area, and the height of the pre-forming boss and the molding boss is the same; the plate body of the pre-molding bottom plate 312 where the pre-molding boss 313 is located and the plate body of the molding bottom plate 322 where the molding boss 323 is located have the same shape, but the area of the plate body of the pre-molding bottom plate 312 is smaller than that of the molding bottom plate 322; meanwhile, the height of the preformed side frame 311 is greater than that of the molding side frame 321; for example: the length of the bottom surface of the preformed projection 313 is about 3/5 the length of the corresponding side of the plate body of the preformed bottom plate 312, and the height of the preformed projection 313 is about 1/3 the height of the preformed side frame 311.

It is also possible to provide the size of the pre-molded protrusion 313 and the size of the molding protrusion 323 differently, for example, to provide the molding protrusion 323 with a bottom surface area larger than that of the pre-molded protrusion 313, and to provide the molding protrusion 323 with a height smaller than that of the pre-molded protrusion 313.

The preforming side frame 311 of the preforming cavity 31 and the molding side frame 321 of the molding cavity 32 are all formed by four rectangular templates to form a square frame body, and the two adjacent templates can be fixedly connected through connection forms such as bolts, screws, riveting or welding.

Optionally, the preforming side frame 311 of the preforming cavity 31 and the shaping side frame 321 of the shaping cavity 32 are all square frames surrounded by four rectangular steel plates, and the steel plates are fixedly connected and supported by a steel skeleton, and the shaping size of the fixing piece is locked.

Optionally, the preforming side frame 311 of the preforming cavity 31 and the molding side frame 321 of the molding cavity 32 are all square frames surrounded by four rectangular bakelite plates, and the bakelite plates are fixedly connected and supported by a steel skeleton, and are locked to form a fixed part.

Alternatively, the plate body of the preformed bottom plate 312 and the plate body of the molded bottom plate 322 are made of steel plates or bakelite plates.

The following describes how to deform the external dimensions of the ground fixing part to achieve the final shaping and make the ground fixing part obtain and maintain the prestress by taking a set of actual dimensions as an example:

the manufacturing method of the pre-stress holding structure of the ground firmware comprises the following steps:

firstly, making a pouch: according to the designed size requirement, cutting high-strength plastic fiber woven cloth with super weather resistance and corrosion resistance, sewing a bag body, and installing a base belt, a truss belt, a hanging belt body and a sealing belt;

step two, manufacturing a filling material: selecting a granular material with better gradation by using on-site or adjacent resources, or manufacturing a granular filling material by using materials such as construction waste, muck and the like on site and controlling the water content and the sludge content;

thirdly, primary molding of the ground firmware: firstly, placing a pre-forming cavity with the same shape and initial size as the bag on the ground, wherein the overall size of the space in the pre-forming cavity is 150 x 45cm, and the size of the internal space of the bag is basically the same as the size when the bag is not pulled by external force; then, laying the empty bag in a pre-forming cavity, opening a bag opening, enabling two locking belts to cross and penetrate through the lower part of the sling body, pass through a gap, then bend upwards and attach to the outer side of the sling body (as shown in fig. 4), then filling the filling material 44, and performing layered vibration compaction, as shown in fig. 7, in the process, always keeping the part of the locking belt extending upwards in bending attached to the outer side of the sling body and protruding out of the filling material 44 together with the hanging part 160 of the sling body; then, as shown in fig. 8, the four upper covers 111 are closed layer by layer, and the upper covers are tightly closed by the upper cover tightening sealing structure, and the capsular bag is tightly tightened;

specifically, a plurality of strip-shaped sealing belts 13 are correspondingly and fixedly connected to the two opposite upper covers 111, and the sealing belts 13 and the upper cover of the bag 11 can be fixedly connected by sewing; the end of each sealing strip 13 facing the other upper cover is fixedly connected with a locking ring 131, the locking ring 131 can be formed by bending and sewing the end of the sealing strip, or can be a ring made of a suitable material and fixedly connected by sewing or the like; the two corresponding locking rings 131 are connected with each other in a tensioned manner through a connecting rope 133 which is arranged in a penetrating manner, and the tension is locked. Specifically, the connecting rope is a packing belt, after the sack 11 of the fastener is filled with the filling material 44 and compacted, the four separately opened upper covers are closed layer by layer, the two corresponding locking rings penetrate through the packing belt, the packing belt is tightened by the packer, the acting force is transmitted to the sack 11 through the locking ring 131 and the sealing belt 13, the tension on the sealing belt 13 is increased to the design requirement, and then the packing belt is fixedly connected and locked by the fastening buckle 132, so that the sack 11 is tightened.

Fourthly, pressing and molding the ground firmware: the closed ground fixing piece and the locking belt are lifted and moved into the molding cavity 32, and then the ground fixing piece is vibrated and pressurized to enable the plane dimension of the ground fixing piece to be deformed to be consistent with the molding cavity, so that the base cloth of the bag obtains a specified prestress;

specifically, as shown in fig. 9, the truss belt, the suspension belt, the locking belt, etc. are omitted, in fig. 9 (a), the ground fixing member and the locking belt are moved into the molding cavity 32, the vibration pressure in the direction indicated by the arrow in the ground fixing member drawing extends the bag base cloth of the ground fixing member and moves the bag base cloth together with the filler in the direction of the molding side frame 321 of the molding cavity until the gap 3215 between the molding side frame 321 and the ground fixing member 1 disappears, as shown in fig. 9 (B), at this time, the overall dimension of the ground fixing member 1 is deformed from the overall dimension of 150 × 45cm at the time of primary molding to 160 × 160 cm 39cm, that is, the overall dimension of the ground fixing member is subjected to the change of increase in cross sectional area and decrease in height by the pressure molding, so that the ground fixing member obtains a predetermined prestress;

fifthly, lifting the ground fastener to be separated from the molding cavity, as shown in the schematic diagram of fig. 10, placing a reaction frame 180 on the ground fastener, pressing the top surface of the ground fastener by a reaction frame base, utilizing the top end of a telescopic rod of a jack 181 on the reaction frame to upwards abut against the hanging part of the suspender body so as to apply upward pulling force on the suspender body, enabling a locking belt penetrating through the gap at the lower part of the suspender body to be linked and to be further stretched together with the base cloth at the bottom surface of the bag, generating tension, and then forming two locking belts into a cross locking structure so as to lock the tension and fix the shape of the ground fastener;

specifically, as shown in fig. 11, the longer long section 52a and the shorter short section 52b of the two sections of the ground fastener, which expose each locking band, extend in opposite directions to each other to surround the ground fastener, so that the two locking bands tighten and bind the top surface, the pair of opposite side surfaces and the bottom surface of the outer part of the bag, and the two locking bands are perpendicularly intersected at the centers of the top surface and the bottom surface of the bag, which is called a cross locking structure, the two locking rings of each locking band 5 are placed at the side surface of the other side, and are tightened and locked by a connecting rope which is threaded through the two locking rings, and the locking mode of the connecting rope can adopt the same structural form as the tightening and sealing structure of the upper cover, that is, the two corresponding locking rings 51 of the same locking band are tightened and connected by the connecting rope which is threaded through, and the tensile force is locked. Specifically, the connecting rope can be a packing belt, and after the packing belt is tightened by a packer to meet the design requirement, the packing belt is fixedly connected with a locking tension by a fastening buckle 53, so that the locking belt is tightened.

Preferably, referring to the schematic diagram of fig. 12, after the long segment 52a and the short segment 52b of each locking band exposed from the ground fastener are respectively bent and pass through the hanging portion 160 of the hanging band body at the position indicated by D in the drawing, the locking bands extend in opposite directions to surround the ground fastener, and since the locking bands form passing locking with the hanging band body at the positions indicated by C in the drawing (i.e. the passing gap at the lower portion of the hanging band body) and D, this structural form can ensure that the parts of the locking bands inside the ground fastener can be always tightly attached to the hanging band body even if the locking bands are pulled by a larger amount, the locking bands inside the ground fastener are not separated from the hanging band body due to pulling, the shape is kept stable, and the transverse movement of the locking bands is effectively limited; the sling fixing belt surrounds the middle of the sling body, so that the upper side edge and the lower side edge of the sling fixing belt respectively play a role in strengthening the strength of the passing clearance of the hanging part at the upper part and the lower part of the sling body, and the tearing damage caused by pulling the locking belt is avoided.

Sixthly, hoisting the ground firmware to the site by using the sling body, and paving and installing the ground firmware on the leveled foundation; the laying method comprises the following steps: continuous flat-laying, interval flat-laying, lattice flat-laying and up-down lap joint overlapped-laying to form a terrace, a roadbed or a retaining wall masonry;

seventhly, as shown in fig. 13, after the ground fixing pieces are laid on the soft foundation, the ground fixing pieces are pressed and vibrated and pressurized, so that the filling materials are further compacted, gaps among the ground fixing pieces are mutually pressed and closed, and the horizontal displacement of the ground fixing pieces is limited; the bag of the ground firmware is prestressed again and promotes the soil body under the ground firmware to drain and solidify, so that the bag and the soil body under the ground firmware are meshed into a whole, and a ground firmware reinforcing system is formed. In fig. 13, V is a pressing vibration force; 71 indicates the state of the firmware when it is installed; 72 refers to a laying reserved seam of the ground firmware; reference numeral 73 denotes a ground fixing member state after being deformed by the pressure vibration.

Preferably, as shown in fig. 11, the bag is further fixedly connected with end reinforcing interconnection rings 17 respectively at the middle parts of four edges between the top surface and the bottom surface, and when the ground fixing pieces are laid, the adjacent ground fixing pieces can be connected in a penetrating and matching manner through the reinforcing interconnection rings and the connection ropes, so that the position deviation of the ground fixing pieces in the horizontal direction is avoided, and the overall stability is enhanced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The prestress maintaining structure of the ground fixing part comprises a bag provided with a truss belt, a base belt, a sling body and an upper cover, wherein the bag is internally wrapped with filling materials; the locking device comprises two locking belts, each locking belt tightens the top surface, the pair of opposite side surfaces and the bottom surface of the outer part of the binding pocket respectively, and the two locking belts are vertically crossed at the centers of the top surface and the bottom surface of the pocket.

2. The ground fastener prestress maintaining structure of claim 1, wherein the sling body is provided with a through gap at a lower portion thereof adjacent to the bottom surface of the pocket, two locking bands cross through the lower portion of the sling body and pass through the gap, then bend upward and attach to the outside of the sling body, two segments of each locking band exposed out of the ground fastener extend in opposite directions to surround the ground fastener, so that the two locking bands tighten the top surface, a pair of opposite side surfaces and the bottom surface of the exterior of the pocket, respectively, and the two locking bands are perpendicularly intersected at the centers of the top surface and the bottom surface of the pocket.

3. The pre-stress maintaining structure of claim 2, wherein each locking band has a locking ring at each end, and the two locking rings of the same locking band are threaded through the two locking rings by a connecting rope to tighten and lock the connection and the tension.

4. The pre-stressed holding structure of claim 2, wherein two sections of each locking strip exposed from the ground fixing member are respectively bent to pass through the hanging portion of the hanging strip body, and then extend in opposite directions to surround the ground fixing member.

5. The structure of claim 2, wherein the sling body is formed by two separate slings, each sling is bent between the two slings to form a hanging bending section, the hanging bending sections of the two slings are crossed to form a hanging part of the sling body, the hanging part is positioned at the upper part, and two ends of each sling are bent to form end bending parts respectively and are fixedly connected with the center of the bottom surface of the bag; the two hanging belts are positioned in the middle of the hanging belt body and are fixedly connected with one end of the truss belt on the corresponding side and the surrounding hanging belt fixing belt in a sewing way respectively, the truss belt at the position is clamped between the hanging belts and the hanging belt fixing belt, and the hanging belt body at the position forms a square column shape; the adjacent two hanging strips between the hanging strip fixing belt and the end bending part are not sewed, so that a passing gap for the passing of the locking strip is formed, and two passing gaps at the diagonal positions are used for the passing of one locking strip.

6. A forming die set for forming the ground firmware prestress maintaining structure as claimed in claim 1, wherein the forming die set comprises a pre-forming die cavity and a molding die cavity; the pre-forming cavity mainly comprises a pre-forming side frame and a pre-forming bottom plate which are fixedly connected, and the plastic-forming cavity mainly comprises a plastic-forming side frame and a plastic-forming bottom plate which are fixedly connected; the preforming mold cavity and the molding mold cavity are respectively a box body which is roughly in a square or cuboid shape as a whole and is provided with an upward opening, the area of a plate body of the preforming bottom plate is smaller than that of the molding bottom plate, and the height of the preforming side frame is larger than that of the molding side frame; bosses for providing a forming foundation for forming a conical groove at the bottom of a ground firmware are fixedly arranged in the middle of the upper surfaces of the plate bodies of the preforming bottom plate and the molding bottom plate, and the size of the preforming boss is the same as that of the molding boss; or the bottom surface area of the molding boss is larger than that of the preforming boss, and the height of the molding boss is set to be smaller than that of the preforming boss.

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