Geotextile hoop device and gravel pile construction method

Abstract

The invention discloses a geotextile hoop device and a gravel pile construction method, and belongs to the field of gravel pile construction.The geotextile hoop device comprises an upper shell, a bottom shell assembly and a traction rope, a containing cavity with the two ends open and used for being filled with gravel filler is formed in the upper shell, the bottom shell assembly comprises a plurality of bottom shells, and the bottom shells are hinged to the lower end of the upper shell; the bottom shell assembly is operably switched to a surrounding state or an opening state, and when the bottom shell assembly is in the surrounding state, the ends, away from the upper shell, of the multiple bottom shells get close to one another to block the lower end of the containing cavity; when the bottom shell assembly is in the open state, the ends, away from the upper shell, of the multiple bottom shells are away from one another so that the lower end of the containing cavity can communicate with the outside, and one end of the traction rope is used for being connected with the geotextile and hanging the geotextile in the containing cavity. When the geotextile is filled with the gravel filler, the inner wall of the containing cavity can support the geotextile, it is guaranteed that the geotextile is tightly attached to the gravel filler, and the risk that the geotextile deviates in the construction process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gravel pile construction, and in particular to a geotextile sleeve hoop device and a gravel pile construction method. Background Art

[0002] Geotextile stone pile is a structure that wraps geosynthetics outside the stone pile. It not only retains the displacement and drainage functions of the stone pile, but also reduces the lateral deformation of the pile body through the restriction of geosynthetics, thereby effectively improving the bearing capacity of the foundation. Therefore, it is often used in geotechnical engineering examples such as soft soil foundation treatment.

[0003] In traditional gravel pile construction, geotextiles are hung in the pile hole using a simple hook wire method, and then the pile hole is filled with gravel filler. Due to the soft soil on the inner wall of the pile hole, the geotextile is easily displaced during the construction process, thus affecting the overall quality and performance of the project. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a geotextile sleeve device and a gravel pile construction method, which can install the geotextile around the gravel pile to improve the efficiency and reliability of the construction.

[0005] The geotextile hoop device according to an embodiment of the present invention comprises:

[0006] An upper shell, wherein a receiving cavity with two ends open for filling with gravel filler is provided in the upper shell;

[0007] A bottom shell assembly, comprising a plurality of bottom shells, wherein the plurality of bottom shells are hinged at the lower end of the upper shell, and the bottom shell assembly can be operably switched to a closed state or an open state. When the bottom shell assembly is in the closed state, the ends of the plurality of bottom shells away from the upper shell are close to each other to block the lower end of the accommodating cavity; when the bottom shell assembly is in the open state, the ends of the plurality of bottom shells away from the upper shell are away from each other to enable the lower end of the accommodating cavity to communicate with the outside.

[0008] A traction rope, one end of which is used to connect the geotextile and suspend the geotextile in the accommodating cavity.

[0009] The geotextile hoop device according to the embodiment of the present invention has at least the following beneficial effects:

[0010] The geotextile is suspended in the cavity using a traction rope. When the gravel filler is filled, the inner wall of the cavity can support the geotextile, ensure a close fit between the geotextile and the gravel filler, and reduce the risk of position displacement of the geotextile during construction.

[0011] The overall structure is simple and can quickly and accurately complete the installation work at a specific construction location, which can improve construction efficiency and quality.

[0012] According to some embodiments of the present invention, the upper shell includes a first shell, a second shell and a connecting member, the two ends of the connecting member are respectively connected to the first shell and the second shell, the first shell and the second shell enclose a space to form the accommodating cavity, and the connecting member can be operably switched to a locked state and a telescopic state. When the connecting member is in the locked state, the length of the connecting member is fixed; when the connecting member is in the telescopic state, the connecting member can be telescopically set, and the length of the connecting member can be variable.

[0013] According to some embodiments of the present invention, the connecting member includes a first telescopic cylinder, a second telescopic cylinder and a first latch, one end of the first telescopic cylinder is connected to the first shell, one end of the second telescopic cylinder is connected to the second shell, the first telescopic cylinder is provided with a first socket for the first latch to pass through, and the second telescopic cylinder is provided with a second socket for the first latch to pass through; when the first latch is inserted into the first socket and the second socket, the connecting member is in a locked state; when the first latch is staggered with the first telescopic cylinder and the second telescopic cylinder, the other end of the second telescopic cylinder is slidably inserted into the first telescopic cylinder, and the connecting member is in a telescopic state.

[0014] According to some embodiments of the present invention, a locking member is connected between two adjacent bottom shells, and the locking member includes a first connecting tube, a second connecting tube and a second latch, and the two adjacent bottom shells are respectively connected to the first connecting tube and the second connecting tube, and when the second latch is passed through the first connecting tube and the second connecting tube, the bottom shell assembly is in a closed state; when the second latch is staggered with the first connecting tube and the second connecting tube, the bottom shell assembly is in an open state.

[0015] According to some embodiments of the present invention, the geotextile hoop device further comprises a tension meter connected to the other end of the traction rope.

[0016] According to some embodiments of the present invention, the geotextile hoop device further comprises a pulley, the pulley is rotatably connected to the upper end of the upper shell, and the middle portion of the traction rope is wound around the pulley.

[0017] According to some embodiments of the present invention, the geotextile sleeve device also includes a pressure plate, which is provided with a avoidance notch for the traction rope to extend into, the pressure plate is used to be placed on the gravel filler in the accommodating cavity and transfer pressure to the gravel filler, and the upper end of the upper shell is provided with a lifting ring and a force-bearing plate.

[0018] A gravel pile construction method according to an embodiment of the present invention comprises the following steps:

[0019] S1: The operating bottom shell assembly is in a closed state, the middle part of the traction rope is wound around the pulley, one end of the traction rope is connected to the geotextile and the geotextile is hung to a preset position, and the other end of the traction rope is connected to the tension meter;

[0020] S3: Filling the accommodating cavity with gravel filler;

[0021] S4: hoisting the geotextile sleeve device to the hole opening of the pile hole and pressing the bottom shell assembly and the lower end of the upper shell into the pile hole;

[0022] S5: The traction rope is disconnected from the tension meter, the operating connector is in a retracted state, the operating bottom shell assembly is in an open state, a pressure plate is covered on the upper end of the gravel filler, pressure is applied to the upper surface of the pressure plate until the gravel filler is compacted, and the pressure plate is removed;

[0023] S6: Lift the geotextile sleeve device upward for a certain distance, and fill the next layer of crushed stone filler and geotextile sleeve;

[0024] S7: Repeat step S6 until the pile hole is completely filled with crushed stone filler, and lift the upper shell and bottom shell assembly out of the pile hole.

[0025] The gravel pile construction method according to the embodiment of the present invention has at least the following beneficial effects:

[0026] The geotextile is suspended in the cavity using a traction rope. When the gravel filler is filled, the inner wall of the cavity can support the geotextile, ensuring a close fit between the geotextile and the gravel filler, reducing the risk of the geotextile shifting during construction. After completing the above steps, the geotextile is precisely hooped at a specific position of the gravel pile, forming a close contact with the gravel filler.

[0027] The layered construction of gravel piles is conducive to the compaction and expansion of gravel piles, ensuring the close fit between geotextile and gravel piles and guaranteeing the formation quality of gravel piles.

[0028] According to some embodiments of the present invention, step S3 includes:

[0029] S31: reading the reading of the tension meter. When the reading of the tension meter fluctuates beyond a preset range, the gravel filler in the accommodating chamber is taken out and the gravel filler is refilled into the accommodating chamber. When the reading of the tension meter fluctuates less than the preset range, the gravel filler is filled.

[0030] According to some embodiments of the present invention, step S6 comprises:

[0031] S61: Take the middle part of another traction rope and wind it around the pulley, connect one end of the other traction rope to another geotextile, and hang the other geotextile to a preset position, and connect the other end of the other traction rope to the tension meter;

[0032] S62: repeat step S3;

[0033] S63: Repeat step S5.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0036] Figure 1 It is a schematic structural diagram of a geotextile hoop device according to an embodiment of the present invention;

[0037] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0038] Figure 3 for Figure 1 The enlarged view of point B in the middle;

[0039] Figure 4 A cross-sectional view of a geotextile hoop device according to an embodiment of the present invention;

[0040] Figure 5 A top view of a geotextile sleeve device according to an embodiment of the present invention when a pressure plate is placed;

[0041] Figure 6 Schematic diagram of the structure of geotextile.

[0042] Figure Number:

[0043] 100, upper shell; 110, accommodating cavity; 120, first shell; 130, second shell; 140, connecting piece; 141, first telescopic cylinder; 1411, first plug hole; 142, second telescopic cylinder; 150, lifting ring; 160, force plate;

[0044] 200, bottom shell assembly; 210, bottom shell; 220, locking member; 221, first connecting cylinder; 222, second connecting cylinder;

[0045] 300, traction rope; 310, tension meter; 320, pulley;

[0046] 400, pressure plate; 410, avoidance gap;

[0047] 500. Geotextile; 510. Connection hole. DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] See also Figure 1 , Figure 2 and Figure 3 The geotextile hoop device according to an embodiment of the present invention comprises an upper shell 100, a bottom shell assembly 200 and a traction rope 300. A receiving chamber 110 is provided in the upper shell 100, and both ends of the receiving chamber 110 are open. The receiving chamber 110 is used to be filled with gravel filler. The bottom shell assembly 200 comprises a plurality of bottom shells 210, and the plurality of bottom shells 210 are hinged at the lower end of the upper shell 100. The bottom shell assembly 200 can be operably switched to a closed state or an open state. When the bottom shell assembly 200 is in the closed state, the ends of the plurality of bottom shells 210 away from the upper shell 100 are close to each other to block the lower end of the receiving chamber 110; when the bottom shell assembly 200 is in the open state, the ends of the plurality of bottom shells 210 away from the upper shell 100 are away from each other to make the lower end of the receiving chamber 110 communicate with the outside. One end of the traction rope 300 is used to connect the geotextile 500 and suspend the geotextile 500 in the receiving chamber 110.

[0052] The geotextile 500 is suspended in the accommodating cavity 110 using a traction rope 300. When the accommodating cavity 110 is filled with gravel, the inner wall of the accommodating cavity 110 can support the geotextile 500, ensuring a close fit between the geotextile 500 and the gravel filler, thereby reducing the risk of position displacement of the geotextile 500 during construction.

[0053] The overall structure is simple and can quickly and accurately complete the installation work at a specific construction location, which can improve construction efficiency and quality.

[0054] In some embodiments, see Figure 1 and Figure 4 The upper shell 100 includes a first shell 120, a second shell 130 and a connecting member 140. The two ends of the connecting member 140 are respectively connected to the first shell 120 and the second shell 130. The first shell 120 and the second shell 130 enclose a space to form an accommodating cavity 110. The connecting member 140 can be operably switched to a locked state and a telescopic state. When the connecting member 140 is in the locked state, the length of the connecting member 140 is fixed; when the connecting member 140 is in the telescopic state, the connecting member 140 can be telescopically set, and the length of the connecting member 140 can be changed.

[0055] The first shell 120 and the second shell 130 are connected by a connecting piece 140, and the connecting piece 140 can be retracted when in a retractable state, so that the first shell 120 and the second shell 130 can be flexibly expanded and closed during the construction process to meet the construction requirements of gravel piles of different shapes and sizes, while ensuring that the gravel filler can be compressed and expanded to form compaction and reinforcement of the surrounding soil.

[0056] In some embodiments, participation Figure 1 , Figure 2 and Figure 4 The connecting member 140 includes a first telescopic cylinder 141, a second telescopic cylinder 142 and a first latch. One end of the first telescopic cylinder 141 is connected to the first housing 120, and one end of the second telescopic cylinder 142 is connected to the second housing 130. The first telescopic cylinder 141 is provided with a first plug hole 1411, and the first plug hole 1411 is used for the first latch to pass through. The second telescopic cylinder 142 is provided with a second plug hole, and the second plug hole is used for the first latch to pass through. The axial directions of the first plug hole 1411 and the second plug hole are consistent. When the first latch is inserted into the first plug hole 1411 and the second plug hole, the connecting member 140 is in a locked state; when the first latch is staggered with the first telescopic cylinder 141 and the second telescopic cylinder 142, the other end of the second telescopic cylinder 142 slides and is inserted into the first telescopic cylinder 141, and the connecting member 140 is in a telescopic state.

[0057] During construction, a steel wire rope can be used as the first latch. Multiple connectors 140 are provided, and the axial directions of the first plug holes 1411 on the multiple first telescopic cylinders 141 are consistent. One end of the steel wire rope is passed through the first plug holes 1411 and the second plug holes of the multiple connectors 140, so that the multiple connectors 140 are in a locked state. The other end of the steel wire rope can be connected to a winch, and the steel wire rope is electrically controlled to be pulled out from the first plug holes 1411 and the second plug holes of the multiple connectors 140, so that the multiple connectors 140 are in a telescopic state.

[0058] The connecting member 140 can be retracted when in a retractable state, so that the first shell 120 and the second shell 130 can be flexibly expanded and closed during the construction process to meet the construction requirements of gravel piles of different shapes and sizes, while ensuring that the gravel filler can be compressed and expanded to form compaction and reinforcement on the surrounding soil.

[0059] In some embodiments, see Figure 1 , Figure 3 and Figure 4 A locking member 220 is connected between two adjacent bottom shells 210, and the locking member 220 includes a first connecting tube 221, a second connecting tube 222, and a second latch. The two adjacent bottom shells 210 are respectively connected to the first connecting tube 221 and the second connecting tube 222. When the second latch is inserted into the first connecting tube 221 and the second connecting tube 222, the bottom shell assembly 200 is in a closed state; when the second latch is staggered from the first connecting tube 221 and the second connecting tube 222, the bottom shell assembly 200 is in an open state.

[0060] During construction, a steel wire rope can be used as the second latch. A plurality of locking members 220 are provided. One end of the steel wire rope is passed through the first connecting tube 221 and the second connecting tube 222, so that the bottom shell assembly 200 is in a closed state, and the bottom shell 210 blocks the lower end of the accommodating cavity 110, so that the gravel filler can be filled into the accommodating cavity 110. The other end of the steel wire rope can be connected to a winch, and the steel wire rope is electrically controlled to be pulled out from the plurality of first connecting tubes 221 and the second connecting tubes 222, so that the bottom shell assembly 200 is in an open state, and the lower end of the accommodating cavity 110 is connected to the outside world.

[0061] In some embodiments, see Figure 1 and Figure 3 When the bottom shell assembly 200 is in the enclosed state, the bottom shell assembly 200 is conical. When the bottom shell assembly 200 is in the enclosed state, the accommodating cavity 110 can be filled with crushed stone filler, and then the geotextile sleeve device is hoisted into the pile hole by the lifting device. The conical bottom shell assembly 200 can guide the geotextile sleeve device to be smoothly inserted into the pile hole.

[0062] In some embodiments, see Figure 1 , Figure 4 and Figure 6A connection hole 510 is provided on the geotextile 500, and the traction rope 300 is a steel strand. The traction rope 300 passes through the connection hole 510 to connect to the geotextile 500, and the connection is firm and not easy to fall off.

[0063] In some embodiments, see Figure 1 and Figure 4 The geotextile sleeve device also includes a tension meter 310, which is connected to the other end of the traction rope 300. The tension meter 310 can be used to monitor the filling effect of the gravel filler. The gravel filler is filled into the accommodating chamber 110, and the gravel filler will impact the geotextile 500, causing the reading of the tension meter 310 connected to the other end of the traction rope 300 to fluctuate. If the reading of the tension meter 310 fluctuates greatly (for example, the preset value is 10N, when the reading of the tension meter 310 is greater than 10N, it indicates a large fluctuation, and less than 10N indicates a small change), it means that the geotextile 500 has curled and deformed under the action of the gravel, and part of the gravel has fallen on the outside of the geotextile 500, then the gravel filling needs to be re-carried. If the reading of the tension meter 310 changes only slightly under the vibration of the gravel filling, it is considered that the filling of the gravel in the valve-type shell is smooth.

[0064] The filling effect of the crushed stone filler is judged by the tension meter 310, so that the workers do not need to observe the filling of the crushed stone filler at a close distance, thereby improving the safety of the workers.

[0065] In some embodiments, see Figure 1 and Figure 4 The geotextile sleeve device further includes a pulley 320, which is rotatably connected to the upper end of the upper shell 100, and the middle part of the traction rope 300 is wound around the pulley 320. The pulley 320 can change the force direction of the traction rope 300, so that the tensiometer 310 can be tightened to a position offset from the upper end opening of the accommodating chamber 110, and the upper end opening of the accommodating chamber 110 can be filled with gravel filler.

[0066] In some embodiments, see Figure 4 and Figure 5 The geotextile sleeve device also includes a pressure plate 400, and a clearance notch 410 is provided on the pressure plate 400, and the clearance notch 410 is used for the traction rope 300 to extend into. The pressure plate 400 is made of rigid material. After the lower end of the geotextile sleeve device is placed in the pile hole, the pressure plate 400 needs to be placed on the gravel filler, the bottom shell assembly 200 is operated to be in an open state, the connecting piece 140 is operated to be in a telescopic state, and heavy machinery is used to vibrate and pressurize the pressure plate 400 to compact the gravel filler into a pile.

[0067] A lifting ring 150 and a force plate 160 are provided at the upper end of the upper shell 100. The lifting ring 150 facilitates the lifting device to carry the geotextile sleeve device. Four upper plates can be provided, and the four force plates 160 are arranged at intervals. After the lower end of the geotextile sleeve device is placed in the pile hole, a large machine is used to apply pressure to the force plate 160 to sink the lower end of the geotextile sleeve device into the pile hole.

[0068] A gravel pile construction method according to an embodiment of the present invention comprises the following steps:

[0069] S1: The bottom shell assembly 200 is operated to be in a closed state, the middle part of the traction rope 300 is wound around the pulley 320 , one end of the traction rope 300 is connected to the geotextile 500 and the geotextile 500 is hung to a preset position, and the other end of the traction rope 300 is connected to the tension meter 310 .

[0070] S3: Filling the accommodating cavity 110 with gravel filler.

[0071] S4: The geotextile sleeve device is hoisted to the hole mouth of the pile hole and the bottom shell assembly 200 and the lower end of the upper shell 100 are pressed into the pile hole.

[0072] S5: The traction rope 300 is disconnected from the tension meter 310, the operating connector 140 is in a telescopic state, the operating bottom shell assembly 200 is in an open state, the pressure plate 400 is covered on the upper end of the gravel filler, pressure is applied to the upper surface of the pressure plate 400 until the gravel filler is compacted, and the pressure plate 400 is removed.

[0073] S6: Lift the geotextile hoop device upward for a certain distance and fill the next layer of crushed stone filler and geotextile 500 hoop.

[0074] S7: Repeat step S6 until the pile hole is completely filled with gravel filler, and then lift the upper shell 100 and the bottom shell assembly 200 out of the pile hole.

[0075] The geotextile 500 is suspended in the accommodating cavity 110 using the traction rope 300. When the gravel filler is filled, the inner wall of the accommodating cavity 110 can support the geotextile 500, ensure the close fit between the geotextile 500 and the gravel filler, and reduce the risk of position displacement of the geotextile 500 during the construction process. After completing the above steps, the geotextile 500 is precisely hooped at a specific position of the gravel pile, forming a close contact with the gravel filler.

[0076] The layered construction of gravel piles is conducive to the compaction and expansion of gravel piles, ensuring the close fit between geotextile 500 and gravel piles and the quality of gravel pile formation.

[0077] In some embodiments, step S3 includes:

[0078] S31: Read the reading of the tension meter 310. When the reading of the tension meter 310 fluctuates beyond a preset range (for example, the preset value is 10N, when the reading of the tension meter 310 is greater than 10N, it indicates a large fluctuation, and when it is less than 10N, it indicates a small change), the gravel filler in the accommodating chamber 110 is taken out and the gravel filler is refilled into the accommodating chamber 110; when the reading of the tension meter 310 fluctuates less than the preset range, the gravel filler is filled. The filling effect of the gravel filler is judged by the tension meter 310, so that the staff does not need to observe the filling of the gravel filler closely, which improves the safety of the staff.

[0079] In some embodiments, step S6 includes:

[0080] S61: Take the middle part of another traction rope 300 and wrap it around the pulley 320 , connect one end of the other traction rope 300 to another geotextile 500 , and hang the other geotextile 500 to a preset position, and connect the other end of the other traction rope 300 to the tension meter 310 .

[0081] S62: Repeat step S3.

[0082] S63: Repeat step S5.

[0083] The layered construction of gravel piles is conducive to the compaction and expansion of gravel piles, ensuring the close fit between geotextile 500 and gravel piles and the quality of gravel pile formation.

[0084] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0085] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A geotextile hoop device, characterized in that: include: An upper shell, wherein a receiving cavity with two ends open for filling with gravel filler is provided in the upper shell; A bottom shell assembly, comprising a plurality of bottom shells, wherein the plurality of bottom shells are hinged at the lower end of the upper shell, and the bottom shell assembly can be operably switched to a closed state or an open state. When the bottom shell assembly is in the closed state, the ends of the plurality of bottom shells away from the upper shell are close to each other to block the lower end of the accommodating cavity; when the bottom shell assembly is in the open state, the ends of the plurality of bottom shells away from the upper shell are away from each other to enable the lower end of the accommodating cavity to communicate with the outside. A traction rope, one end of which is used to connect the geotextile and suspend the geotextile in the accommodating cavity.

2. The geotextile hoop device according to claim 1, characterized in that: The upper shell includes a first shell, a second shell and a connecting member, the two ends of the connecting member are respectively connected to the first shell and the second shell, the first shell and the second shell enclose a space to form the accommodating cavity, and the connecting member can be operably switched to a locked state and a telescopic state. When the connecting member is in the locked state, the length of the connecting member is fixed; when the connecting member is in the telescopic state, the connecting member can be telescopically set and the length of the connecting member can be variable.

3. The geotextile hoop device according to claim 2, characterized in that: The connecting member includes a first telescopic cylinder, a second telescopic cylinder and a first latch, one end of the first telescopic cylinder is connected to the first shell, one end of the second telescopic cylinder is connected to the second shell, the first telescopic cylinder is provided with a first plug hole for the first latch to pass through, and the second telescopic cylinder is provided with a second plug hole for the first latch to pass through; when the first plug is inserted into the first plug hole and the second plug hole, the connecting member is in a locked state; when the first latch is staggered with the first telescopic cylinder and the second telescopic cylinder, the other end of the second telescopic cylinder is slidably inserted into the first telescopic cylinder, and the connecting member is in a telescopic state.

4. The geotextile hoop device according to claim 1, characterized in that: A locking piece is connected between two adjacent bottom shells, and the locking piece includes a first connecting tube, a second connecting tube and a second latch. The two adjacent bottom shells are respectively connected to the first connecting tube and the second connecting tube. When the second latch is inserted into the first connecting tube and the second connecting tube, the bottom shell assembly is in a closed state; when the second latch is staggered with the first connecting tube and the second connecting tube, the bottom shell assembly is in an open state.

5. The geotextile hoop device according to claim 1, characterized in that: A tension meter is also included, and the tension meter is connected to the other end of the traction rope.

6. The geotextile hoop device according to claim 1, characterized in that: It also includes a pulley, which is rotatably connected to the upper end of the upper shell, and the middle part of the traction rope is wound around the pulley.

7. The geotextile hoop device according to claim 1, characterized in that: It also includes a pressure-bearing plate, which is provided with a avoidance notch for the traction rope to extend into, and the pressure-bearing plate is used to be placed on the gravel filling in the accommodating cavity and transfer pressure to the gravel filling. The upper end of the upper shell is provided with a lifting ring and a force-bearing plate.

8. A method for constructing a gravel pile using the geotextile sleeve device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The operating bottom shell assembly is in a closed state, the middle part of the traction rope is wound around the pulley, one end of the traction rope is connected to the geotextile and the geotextile is hung to a preset position, and the other end of the traction rope is connected to the tension meter; S3: Filling the accommodating cavity with gravel filler; S4: hoisting the geotextile sleeve device to the hole opening of the pile hole and pressing the bottom shell assembly and the lower end of the upper shell into the pile hole; S5: The traction rope is disconnected from the tension meter, the operating connector is in a retracted state, the operating bottom shell assembly is in an open state, a pressure plate is covered on the upper end of the gravel filler, pressure is applied to the upper surface of the pressure plate until the gravel filler is compacted, and the pressure plate is removed; S6: Lift the geotextile sleeve device upward for a certain distance, and fill the next layer of crushed stone filler and geotextile sleeve; S7: Repeat step S6 until the pile hole is completely filled with gravel filler, and lift the upper shell and bottom shell assembly out of the pile hole.

9. The gravel pile construction method according to claim 8, characterized in that: The step S3 comprises: S31: reading the reading of the tension meter. When the reading of the tension meter fluctuates beyond a preset range, the gravel filler in the accommodating chamber is taken out and the gravel filler is refilled into the accommodating chamber. When the reading of the tension meter fluctuates less than the preset range, the gravel filler is filled.

10. The gravel pile construction method according to claim 8, characterized in that: The step S6 comprises: S61: Take the middle part of another traction rope and wind it around the pulley, connect one end of the other traction rope to another geotextile, and hang the other geotextile to a preset position, and connect the other end of the other traction rope to the tension meter; S62: repeat step S3; S63: Repeat step S5.

Images