A vacuum compression geobag system and its use method

Abstract

The present invention discloses a vacuum compression geobag system and a method of using the same, which relates to the technical fields of geotechnical engineering and water conservancy engineering, and aims to solve the problems of easy breakage of geobags, inaccurate compaction control, low connection efficiency, and interference of debris in the compaction process. The key points of the technical solution are: a vacuum compression geobag system, comprising: a geobag body module, which is used to form a sealed bag body and contain soil, and two filling ports are arranged on the top of the sealed bag body; a vacuum compression control module, which is connected to the geobag body module and is used to generate negative pressure to compact the soil in the geobag body, and the vacuum compression module adjusts the negative pressure by increasing or decreasing the power, thereby adjusting the negative pressure degree of the compaction process; a drainage system module. The vacuum compression geobag system and the method of using the same of the present invention achieve higher soil compaction effect, stability, connection efficiency and debris isolation, and improve the overall performance and reliability of the system.

Description

Technical Field

[0001] The invention relates to the technical field of geotechnical engineering and water conservancy engineering, and in particular to a vacuum compression geobag system and a use method thereof. Background Art

[0002] In modern engineering projects, especially in the improvement and reinforcement of soft soil foundations, geobags are widely used for soil compaction and moisture removal. They are mainly used to enhance soil stability and prevent excessive soil settlement or expansion. Geobags are not only used for foundation treatment, but also play an important role in flood control, drainage and other fields.

[0003] At present, most of the geobags used in the market are made of simple single materials, such as polyethylene film or woven cloth, which can withstand external pressure to a certain extent and prevent soil leakage. During the compaction process, they can provide basic sealing functions and maintain a certain degree of isolation from the external environment. The matching compaction equipment usually uses a standard vacuum pump system to form negative pressure by extracting air to promote the compaction effect of the soil. In this way, the excess moisture in the soil is gradually removed, which can make the soil more stable.

[0004] However, the existing technical solutions have some shortcomings; first, the materials of traditional geobags often lack sufficient strength and corrosion resistance, and are prone to breakage, leakage and other problems after a period of use. Even if they can play a certain role in the short term, after long-term use, the bag body is easily affected by external forces and loses its sealing, resulting in moisture leakage; secondly, the existing vacuum compression technology usually only relies on a single vacuum degree for processing, and cannot effectively respond to the needs of soil compaction and moisture removal at different stages. The change in vacuum degree directly affects the compaction effect of the soil. If it is not properly controlled, it is easy to cause uneven soil compaction and affect the overall stability; thirdly, the existing geobag connection method is cumbersome and inefficient, and the connection often requires a lot of time and manpower, which increases the difficulty of operation; moreover, solid debris such as stones and other hard objects are easily mixed in during the filling process, which has an adverse effect on the compaction effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a vacuum compression geobag system and a method of using the same, which solves the problems in the prior art of easy breakage of geobags, inaccurate compaction control, low connection efficiency, and interference of debris in the compaction process.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vacuum compression geobag system, the system comprising:

[0007] A geobag module is used to form a sealed bag and contain soil, and two filling ports are provided on the top of the sealed bag;

[0008] A vacuum compression control module connected to the geobag module, used to generate negative pressure to compact the soil in the geobag, and the vacuum compression control module adjusts the negative pressure by increasing or decreasing power, thereby adjusting the negative pressure degree of the compaction process;

[0009] A drainage system module, which is connected to the geobag module and is used to remove moisture generated by squeezing the soil during the compaction process;

[0010] A connecting mechanism, which is arranged between the two filling ports and is used to connect the two filling ports, thereby sealing the geobag body and allowing the vacuum compression control module to generate negative pressure inside the geobag body;

[0011] The filtering mechanism is arranged in the middle of the connecting mechanism and is used to prevent stones and large granular debris from entering the geobag body, thereby reducing the impact on the compaction work of the geobag.

[0012] Preferably, the geobag module comprises:

[0013] The bag body is made of polyethylene or polyvinyl chloride sealing film and woven cloth, the inner layer is a sealing film, the outer layer is a fabric composite material, and the bag body is formed by a heat sealing process to form a geotextile bag with a cavity bag.

[0014] Preferably, the vacuum compression control module comprises:

[0015] A vacuum interface, which is fixed in the middle of the geobag body;

[0016] A vacuum pump connected to the vacuum interface of the geobag body to form a negative pressure by vacuuming;

[0017] The regulating valve is used to control the change of vacuum degree and adjust the vacuum degree according to the soil characteristics at different stages.

[0018] Preferably, the drainage system module comprises:

[0019] The drainage branch pipe adopts high-strength soft permeable pipe, and the pipe body is wrapped with permeable filter cloth to remove pore water during the compaction process;

[0020] A three-way connecting pipe, which is used to connect multiple drainage branch pipes to the main pipe to form a complete drainage channel;

[0021] The main pipe is used to collect the water discharged from all drainage branches and guide it out of the system.

[0022] Preferably, the connecting mechanism comprises a connecting plate 1 and a connecting plate 2, the connecting plate 1 and the connecting plate 2 are respectively fixedly connected to one end close to the two filling ports, the outer sides of the connecting plate 1 and the connecting plate 2 are fixedly connected to a support plate, the inner side of the support plate is fixedly connected to a clockwork spring, the other end of the clockwork spring is fixedly connected to an I-shaped rod, the outer periphery of the I-shaped rod is fixedly connected to a connecting block, the outer side of the connecting block is fixedly connected to a clamping block, the connecting plate 1 and the connecting plate 2 are fixedly connected to a clamping groove on one side away from the support plate, the clamping block and the clamping groove are plug-fitted, a groove is provided between the connecting plate 1 and the connecting plate 2, and the groove is used for installing a sealing ring.

[0023] Preferably: the filtering mechanism comprises two mounting plates, the two mounting plates are respectively slidably connected to the middle parts of the connecting plate one and the connecting plate two, a filter box is fixedly connected to the middle part of the mounting plate, a return spring is fixedly connected to the inside of the mounting plate, a protrusion is fixedly connected to the other end of the return spring, a groove is provided inside the mounting plate, the protrusion and the groove are plug-fitted, and a disassembly component is rotatably connected to the middle part of the mounting plate.

[0024] Preferably: the disassembly assembly includes a rotating rod, the rotating rod is rotatably connected to the middle part of the mounting plate, a pull rope is fixedly connected to the outer side of the rotating rod, and the other end of the pull rope is fixedly connected to a side of the protrusion close to the reset spring.

[0025] The present invention also provides a method for using a vacuum compressed geobag, comprising the following steps:

[0026] A vacuum compressed geotextile bag body is provided, wherein the bag body is made of a composite material, a sealing film is provided inside, and a woven cloth is provided outside;

[0027] The soil is filled into the geobag through the filling port, and the stone and large particles are blocked by the filter box during the filling process. After the filling is completed, the connecting plate 1 and the connecting plate 2 are connected to each other, so that the card block enters the card slot, thereby closing the filling port;

[0028] The air in the geobag is extracted by a vacuum pump to form negative pressure to achieve compaction and consolidation of the soil;

[0029] Start the drainage system module to drain the pore water in the soil through the drainage branch pipe until the soil reaches the expected consolidation degree;

[0030] After the compaction and consolidation process is completed, the vacuum extraction is stopped and the soil treatment is completed;

[0031] The pull rope is rotated to pull the protrusion out of the groove by rotating the rotating rod, thereby releasing the restriction on the mounting plate, so that the filter box can be taken out and cleaned, and the installation operation of the filter box is completed by inserting the two mounting plates into the connecting plate one and the connecting plate two.

[0032] Preferably, the filling port further includes that the geobag adopts an inner and outer double-layer sealing membrane structure, the length is greater than 50 cm, and the soil is filled by hydraulic filling or mechanical filling.

[0033] Preferably, the vacuum pumping process is carried out in multiple stages, and the multiple stages include:

[0034] In the initial stage, a relatively low vacuum of 40-50 kPa is used to remove free water from the soil;

[0035] In the middle stage, the vacuum degree is moderately increased to 60-70 kPa to promote water discharge and consolidate the soil;

[0036] In the final stage, high vacuum of 80 kPa and above is used for thorough drainage and compaction.

[0037] The present invention provides a vacuum compression geobag system and a method of using the same. It has the following beneficial effects:

[0038] 1. The present invention adopts composite materials to form the geobag body, including an inner sealing film and an outer woven fabric, achieving the technical effects of high strength, corrosion resistance, good sealing and high load-bearing capacity. Compared with the geobags made of a single material in the prior art, it solves the problems of breakage and leakage of the traditional bag body during long-term use, and improves the stability and reliability during the compaction process.

[0039] 2. The present invention adopts multi-stage vacuum control technology, and adjusts the vacuum degree through a vacuum pump to achieve the technical effect of accurately controlling the compaction degree of the soil. Compared with the compaction method that only relies on a single vacuum degree in the prior art, the present invention solves the compaction requirements and moisture removal problems of the soil at different stages, thereby improving the compaction efficiency and uniformity.

[0040] 3. The present invention adopts a quick connection mechanism to achieve the technical effect of quickly sealing geobags and efficiently connecting multiple bags. Compared with the traditional connection method in the prior art, it solves the problem of difficult and low efficiency in connecting geobags, realizes efficient connection of multiple geobags, reduces the number of vacuum pumps used, and reduces the complexity and cost of the system.

[0041] 4. The filtering mechanism adopted in the present invention prevents the debris from interfering with the compaction process by blocking stones and large particles, ensuring that the soil can be compacted evenly and avoiding the instability of the soil bag during the compaction process, thereby achieving the effect of improving the compaction effect of the geobag. At the same time, the filtering mechanism can be easily disassembled, cleaned and installed, reducing the difficulty of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a system structure diagram of the present invention;

[0043] Figure 2 This is a module architecture diagram of the vacuum compression control module of the present invention;

[0044] Figure 3 The module architecture diagram of the drainage system module of the present invention;

[0045] Figure 4 This is a schematic diagram of the structure of the vacuum compressed geobag of the present invention;

[0046] Figure 5 It is a structural schematic diagram of the filling port of the present invention;

[0047] Figure 6 It is a structural schematic diagram of the card slot of the present invention;

[0048] Figure 7 It is a structural schematic diagram of the connection mechanism of the present invention;

[0049] Figure 8 It is a structural schematic diagram of the filtering mechanism of the present invention;

[0050] Fig. 9 The present invention is a flow chart of the method.

[0051] Among them, 1. filling port; 20. connecting mechanism; 201. connecting plate 1; 202. connecting plate 2; 203. support plate; 204. clockwork spring; 205. I-shaped rod; 206. connecting block; 207. clamping block; 208. clamping slot; 30. filtering mechanism; 301. mounting plate; 302. filter box; 303. reset spring; 304. protrusion; 305. groove; 306. rotating rod; 307. pull rope. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Please see attached Figure 1-Attached Figure 8 The embodiment of the present invention provides a vacuum compression geobag system, the system comprising:

[0054] A geobag module, which is used to form a sealed bag and contain soil, and two filling ports 1 are provided on the top of the sealed bag;

[0055] The main function of the geobag module is to contain the soil and ensure that the soil is effectively consolidated and compacted during the vacuum compression process. The module is not only required to have sufficient strength and stability to cope with the external pressure, but also needs to have good sealing to prevent the leakage of soil moisture. Through precise design and material selection, the geobag module can work in conjunction with other system modules (such as vacuum compression control module, drainage system module, etc.) during the vacuum compression process to ensure the efficiency and uniformity of the entire soil compaction process.

[0056] Generally, geobags are made of two layers of different materials. The inner layer is a sealing film made of polyethylene (PE) or polyvinyl chloride (PVC) film. These materials have good waterproof and corrosion resistance and can effectively prevent moisture leakage. The outer layer is a woven fabric. This fabric material has high tensile strength and can provide the structural support required by the bag to prevent the bag from being damaged by external forces during the compaction process.

[0057] As an option, the inner layer of the bag can be made of polyethylene (PE), which has good low temperature resistance and UV resistance. The outer layer is made of woven cloth to enhance the tensile strength of the bag so that the bag can withstand the pressure generated during soil compaction.

[0058] Specifically, the size and shape of the bag body are customized according to engineering requirements and soil types. In some embodiments, the size of the bag body may vary from several meters to tens of meters, depending on the volume of the soil, compaction requirements and the working environment on site.

[0059] Through the heat sealing process, the inner and outer layers of the bag are sealed by heating and pressurizing to ensure that each seam of the bag is firm and has good sealing. In actual operation, the sealing part of the bag needs to be completely sealed to prevent the soil from leaking during the vacuum compression process.

[0060] The geobag plays a key role in bearing and sealing the soil during the vacuum compression process. When the vacuum compression control module is activated, the bag is subjected to the pressure difference between the inside and outside of the bag. The size of the pressure difference between the inside and outside of the bag is closely related to the compaction degree of the soil. The strength and durability of the bag must ensure that it will not be torn or damaged under the external vacuum pressure.

[0061] In this embodiment, the pressure on the bag body can be described by the following formula:

[0062] ;

[0063] in: : is the compression strain of the soil (dimensionless). It indicates the degree of deformation of the soil after pressure is applied; : is the compression modulus of soil (unit: Pa). The compression modulus is a parameter that characterizes the ability of soil to resist deformation under external pressure. Different soils have different compression moduli, which affects the compaction effect; : is the applied external pressure (unit: Pa). The negative pressure generated by the vacuum compression inside the geobag acts on the soil; : is the soil humidity (dimensionless), that is, the water content in the soil. The higher the humidity, the more water, and the more compressible the soil is.

[0064] By adjusting (i.e., the negative pressure applied during vacuum compression) can adjust the compressive strain of the soil , thereby achieving soil compaction.

[0065] During the compaction process, the pressure difference between the inside and outside of the bag is crucial to the compaction of the soil. The pressure difference between the inside and outside of the bag is directly related to the density of the soil.

[0066] The greater the pressure difference between the inside and outside of the bag, the more obvious the compaction effect of the soil in the bag. In the initial stage, a lower vacuum degree is used to help remove free moisture in the soil; in the subsequent stage, as the vacuum degree increases, the soil gradually consolidates.

[0067] A vacuum compression control module connected to the geobag module, used to generate negative pressure to compact the soil in the geobag, wherein the vacuum compression module adjusts the negative pressure by increasing or decreasing power, thereby adjusting the negative pressure degree of the compaction process;

[0068] The vacuum compression control module optimizes the compaction process of the soil by controlling the change of vacuum degree, ensuring that the soil obtains the required consolidation effect during the compression process. This module works closely with the geobag module and the drainage system module to form an efficient soil treatment system.

[0069] In this embodiment, the vacuum compression control module is composed of a vacuum interface, a vacuum pump and a regulating valve. The vacuum interface is connected to the geobag body, and the negative pressure is generated by the vacuum pump. The regulating valve controls the change of vacuum degree according to the different stages of soil compaction, so as to meet the compaction requirements at different stages. Through this multi-stage vacuum control, the system can effectively remove moisture from the soil and ultimately achieve uniform soil compaction.

[0070] Vacuum interface: The vacuum interface is located in the center of the geobag body and is used to connect the geobag body and the vacuum pump. The interface design must ensure tightness, prevent gas leakage, and ensure the stability of the internal pressure difference. In some embodiments, the vacuum interface may be made of corrosion-resistant and high-temperature resistant materials to ensure long-term stability.

[0071] Vacuum pump: The vacuum pump is the core equipment to achieve negative pressure in the soil compaction process. Its function is to create a negative pressure environment inside the bag by extracting the air in the bag, thereby exerting pressure on the soil and promoting the compaction and consolidation of the soil. The choice of vacuum pump depends on the compaction requirements. Especially when dealing with soil with high humidity, the power of the vacuum pump needs to be larger to effectively remove moisture from the soil.

[0072] Regulating valve: The function of the regulating valve is to accurately control the vacuum degree at different compaction stages. In the initial stage, the vacuum degree is set to a lower value, mainly to remove free moisture in the soil; in the middle stage, the vacuum degree is moderately increased to promote further compaction and consolidation of the soil; in the final stage, a higher vacuum degree is used to ensure the final consolidation effect of the soil. The regulating valve is adjusted through real-time feedback to ensure uniformity during the compaction process.

[0073] The vacuum compression control module controls the compaction of the soil and the discharge of moisture by adjusting the negative pressure in the bag. During the vacuum compression process, the compaction effect is affected by the pressure difference between the inside and outside of the bag. The compaction effect of the soil is closely related to the change of vacuum degree, so the adjustment of vacuum degree is very critical.

[0074] In general, the vacuum compression process can be divided into several stages, including:

[0075] Initial stage: The goal of this stage is to remove the free water in the soil and enhance the stability of the soil. The vacuum is set to a lower value (for example, 40-50kPa) to remove the water in the soil. At this time, the negative pressure is mainly used to reduce the free water in the soil.

[0076] Mid-stage: In the mid-stage, the vacuum increases moderately (e.g., 60-70 kPa) to promote soil consolidation. During this stage, water continues to be expelled and the soil gradually gains a stronger degree of compaction.

[0077] Final stage: In the final stage, the vacuum is set to a high value (e.g., 80 kPa or higher) to ensure complete consolidation of the soil and remove any remaining moisture.

[0078] The change of vacuum degree in each stage is precisely controlled by the regulating valve in the vacuum compression control module to ensure that the soil reaches the expected compaction degree throughout the compaction process.

[0079] During the vacuum compression process, the pressure difference between the inside and outside of the bag directly affects the compaction effect of the soil. ) and external environmental pressure ( ) determines the intensity of soil compaction.

[0080] ;

[0081] in: : is the pressure difference between the inside and outside of the bag (unit: Pa). This pressure difference directly affects the compaction effect of the soil. The better the compaction effect, the greater the pressure difference; : is the external environmental pressure (unit: Pa), usually the atmospheric pressure; : Negative pressure inside the bag (unit: Pa), generated by extracting air with a vacuum pump.

[0082] By adjusting the vacuum pump's extraction rate and the setting of the regulating valve, the negative pressure inside the bag can be precisely controlled, thereby adjusting the pressure difference and further optimizing the compaction process.

[0083] The vacuum pump's pumping rate is closely related to the change in vacuum degree. The pumping rate directly affects the efficiency of the vacuum compression process and the rate of water discharge. The pumping rate can be described by the following formula:

[0084] ;

[0085] in: : is the air extraction rate (unit: m3 / s), which indicates the amount of air extracted by the vacuum pump per unit time; : is the air extraction coefficient (unit: m / s·Pa), which is related to the performance of the vacuum pump and the soil type; : The interface area between the vacuum pump and the bag body (unit: m2) determines the air flow capacity; and : They are the external atmospheric pressure and the negative pressure inside the bag (unit: Pa).

[0086] The vacuum pump's suction rate directly affects the speed of the soil compaction process. In the initial stage, a moderately high suction rate helps to quickly discharge moisture; in the later stage, a lower suction rate can help the soil compact stably and avoid soil damage caused by excessive suction.

[0087] A drainage system module, which is connected to the geobag module and is used to remove moisture generated by squeezing the soil during the compaction process;

[0088] The drainage system module works closely with the vacuum compression control module and the geobag module to form a complete soil compaction process, which has obvious advantages especially when dealing with high humidity and sticky soil. The efficiency of the drainage system is directly related to the uniformity of the compaction effect and the stability of the soil.

[0089] In this embodiment, the drainage system module is composed of drainage branch pipes, three-way connecting pipes and main pipes. These components are precisely arranged to form a complete drainage channel system to ensure that the water in the soil can be discharged quickly and effectively. The drainage branch pipe is composed of a soft permeable pipe, which is covered with a permeable filter cloth to enhance the discharge effect of the water flow and avoid pipe blockage.

[0090] Drainage branch pipe: The drainage branch pipe is an important part of the drainage system module. Its main function is to guide the moisture in the soil to the outside of the drainage system. The drainage branch pipe adopts high-strength soft permeable pipe, and the pipe is wrapped with permeable filter cloth to improve the drainage capacity and effectively filter the particles in the soil. The design of the permeable pipe ensures that the moisture can be evenly discharged inside the soil.

[0091] Tee connection pipe: Tee connection pipe is used to connect multiple drainage branch pipes to the drainage main pipe. In this way, the water discharged from the drainage branch pipes can be smoothly collected to the main pipe to avoid poor drainage due to uneven water distribution. The design of the tee pipe needs to be precise to ensure smooth water flow.

[0092] Main pipe: The main pipe is used to drain the water collected by multiple drainage branches out of the system. The main pipe is usually composed of large diameter pipes and can carry and direct large amounts of water. The design of the main pipe should take into account the drainage flow rate to ensure drainage efficiency.

[0093] The working efficiency of the drainage system directly affects the compaction effect of the soil. During the vacuum compression process, the pore water in the soil is discharged through the drainage system. In order to ensure the uniformity of the drainage process, the layout of the drainage branch pipes is very critical. Usually, the spacing of the branch pipes needs to be reasonably arranged according to the type of soil, humidity and compaction requirements.

[0094] Generally, the spacing between drainage branches is 1.2 to 2.5 meters. The spacing between branches should be neither too large nor too small. Too large a spacing may cause the water in some soil to not be discharged in time, thus affecting the compaction effect; while too small a spacing will reduce the efficiency of the system. By adjusting the spacing between drainage branches, the best drainage effect can be achieved.

[0095] As an option, for soils with higher humidity, the spacing between drainage branches can be appropriately reduced to improve drainage efficiency; while for dry soils, the spacing between branches can be slightly increased to avoid unnecessary drainage waste.

[0096] The drainage system not only depends on the layout of the drainage branch pipes, but is also closely related to the changes in vacuum and soil moisture. The drainage efficiency of the drainage branch pipes and main pipes will change with the changes in soil moisture, so the drainage rate needs to be adjusted according to the real-time changes in soil moisture.

[0097] In the drainage process, the efficiency of the drainage system is closely related to the flow rate of the drainage branch pipe, the permeability of the soil, and the configuration of the drainage pipe. The drainage flow rate directly affects the efficiency of water discharge, and the calculation of the flow rate depends on the cross-sectional area and pressure difference of the drainage branch pipe.

[0098] The water flow rate of the drainage branch pipe can be calculated by the following formula:

[0099] ;

[0100] in: : is the water flow rate (unit: m3 / s), which indicates the amount of water discharged from the drainage branch pipe per unit time; : is the water permeability coefficient (unit: m / s), which indicates the permeability of soil to water flow. Different types of soil have different permeability coefficients, which will affect the rate of water flow; : is the cross-sectional area of ​​the drainage branch pipe (unit: m2), that is, the cross-sectional area of ​​the drainage pipe, which determines the size of the water flow channel; : is the pressure difference inside and outside the drainage branch pipe (unit: Pa), that is, the difference in vacuum inside and outside the bag body, which affects the rate of water discharge; : is the path length of water flow (unit: m), that is, the distance from the soil to the drainage pipe, which affects the flow efficiency of water flow.

[0101] By adjusting (i.e. negative pressure inside the bag) and (path length) can effectively control the drainage rate and improve drainage efficiency.

[0102] To assess the overall efficiency of a drainage system, the following formula can be used:

[0103] ;

[0104] in: : is the efficiency of the drainage system (dimensionless), which indicates the effectiveness of the system’s drainage capacity; : is the total drainage volume of all drainage branches in the drainage system (unit: m3 / s); : is the amount of water that needs to be discharged from the soil (unit: m3), that is, the total amount of water that needs to be discharged from the soil during the compaction process.

[0105] The drainage efficiency of the drainage system can be improved by optimizing the number and layout of drainage branches, adjusting the configuration of drainage pipes, and coordinating the regulation of the vacuum compression system.

[0106] A connecting mechanism 20, which is disposed between the two filling ports 1, and is used to connect the two filling ports 1, thereby sealing the geobag body and allowing the vacuum compression control module to generate negative pressure inside the geobag body;

[0107] The connection mechanism 20 enables the filling port 1 to be quickly closed through a quick connection operation, and enables multiple geobags to be connected, thereby reducing the number of vacuum pumps required. When in use, the block 207 and the slot 208 are separated by flipping the connection block 206. When the connection block 206 is flipped, the I-shaped rod 205 can twist the spring spring 204, thereby releasing the connection between the connecting plate 1 201 and the connecting plate 202. At the same time, under the action of the spring spring 204, the connection block 206 with the block 207 can be reset to the connection position. By aligning the connecting plate 1 201 and the connecting plate 202, the two blocks 207 are squeezed by the connecting plate 1 201 and the connecting plate 202 respectively when they are close, so that the outside is opened until the connecting plate 1 201 and the connecting plate 2 202 are in contact, thereby completing the installation, and the sealing between the connecting plate 1 201 and the connecting plate 2 202 is ensured by the sealing ring placed between the connecting plate 1 201 and the connecting plate 2 202.

[0108] The filtering mechanism 30 is arranged in the middle of the connecting mechanism 20 to prevent stones and large particles from entering the geobag body, thereby reducing the impact on the compaction of the geobag;

[0109] The filter mechanism 30 improves the compaction effect of the geobag by blocking stones and large particles. When filling, the soil silt enters the geobag due to the blocking of the filter box 302, while larger soil blocks are prevented from entering. However, the moisture in the silt and the pressure of filling can disperse the soil, so that the filter box 302 only blocks large particles, such as stones and other solids. When the filter box 302 needs to be cleaned, the pull rope 307 is rolled up by rotating the rotating rod 306, and the pull rope 307 can pull the protrusion 304 out of the groove 305. , thereby releasing the restriction of the mounting plate 301, the filter box 302 can be taken out and cleaned or replaced at this time. During installation, the filter box 302 is inserted into the connecting plate 1 201 or the connecting plate 202. The protrusion 304 is squeezed by the connecting plate 1 201 or the connecting plate 202 while entering, and is thus received into the mounting plate 301, and the return spring 303 is compressed while being received. When the protrusion 304 moves to a position parallel to the groove 305, the filter box 302 can be quickly installed and put into use through the elasticity of the return spring 303.

[0110] Please see attached Fig. 9The present invention also provides a method for using a vacuum compressed geobag, comprising the following steps:

[0111] Equipped with vacuum compressed geotextile bag body, the bag body is made of composite material, with sealing film inside and woven cloth outside;

[0112] Soil is filled into the geobag through the filling port 1, and stones and large particles are blocked by the filter box 302 during the filling process. After the filling is completed, the connecting plate 1 201 and the connecting plate 2 202 are connected to each other, so that the block 207 enters the slot 208, thereby closing the filling port 1;

[0113] The air in the geobag is extracted by a vacuum pump to form negative pressure to achieve compaction and consolidation of the soil;

[0114] Start the drainage system module to drain the pore water in the soil through the drainage branch pipe until the soil reaches the expected consolidation degree;

[0115] After the compaction and consolidation process is completed, the vacuum extraction is stopped and the soil treatment is completed;

[0116] By rotating the rotating rod 306, the pull rope 307 pulls the protrusion 304 out of the groove 305, thereby releasing the restriction on the mounting plate 301, so that the filter box 302 can be taken out and cleaned, and the installation operation of the filter box 302 is completed by inserting the two mounting plates 301 into the connecting plate 1 201 and the connecting plate 2 202.

[0117] Although 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 appended claims and their equivalents.

Claims

1. A vacuum compression geobag system, characterized in that: The system comprises: The geobag module is used to form a sealed bag body and contain soil, and two filling ports (1) are arranged on the top of the sealed bag body. The pressure borne by the bag body is expressed by the following formula: ； in: is the compressive strain of the soil, which is dimensionless and indicates the degree of deformation of the soil after pressure is applied; The compression modulus of soil, in Pa, is a parameter that characterizes the deformation resistance of soil under external pressure. Different soils have different compression moduli, which affects the compaction effect. It is the negative pressure in the geobag, in Pa, used to squeeze the soil; is the soil humidity, that is, the water content in the soil, and the unit is dimensionless. The more water, the more compressible the soil is. , which can adjust the compressive strain of the soil , thereby achieving soil compaction; The vacuum compression control module is connected to the geobag module and is used to generate negative pressure to compact the soil in the geobag. The vacuum compression control module adjusts the pressure by increasing or decreasing power. , so as to adjust the negative pressure degree of the compaction process; A drainage system module, which is connected to the geobag module and is used to remove moisture generated by squeezing the soil during the compaction process; A connecting mechanism (20) is arranged between the two filling ports (1) and is used to connect the two filling ports (1), thereby sealing the geobag body and allowing the vacuum compression control module to generate negative pressure inside the geobag body. The connecting mechanism (20) comprises a connecting plate 1 (201) and a connecting plate 2 (202). The connecting plate 1 (201) and the connecting plate 2 (202) are respectively fixedly connected to one end of the two filling ports (1) that is close to each other. The outer sides of the connecting plate 1 (201) and the connecting plate 2 (202) are both fixedly connected to a support plate (203). The inner sides of the support plate (203) are fixedly connected to a clockwork spring. A spring (204) is provided, the other end of the clockwork spring (204) is fixedly connected to an I-shaped rod (205), the outer periphery of the I-shaped rod (205) is fixedly connected to a connecting block (206), the outer side of the connecting block (206) is fixedly connected to a clamping block (207), the side of the connecting plate 1 (201) and the connecting plate 2 (202) away from the supporting plate (203) are both fixedly connected to a clamping groove (208), the clamping block (207) and the clamping groove (208) are plug-fitted, a groove is provided between the connecting plate 1 (201) and the connecting plate 2 (202), the groove is used for installing a sealing ring; A filter mechanism (30) is arranged in the middle of the connecting mechanism (20) and is used to prevent stones and large granular debris from entering the geobag body, thereby reducing the impact on the compaction of the geobag. The filter mechanism (30) comprises two mounting plates (301). The two mounting plates (301) are slidably connected to the middle of the first connecting plate (201) and the second connecting plate (202), respectively. A filter box (302) is fixedly connected to the middle of the mounting plates (301). A return spring (303) is fixedly connected to the inside of the mounting plates (301). The other end of the return spring (303) is fixedly connected to the inside of the mounting plates (301). One end is fixedly connected with a protrusion (304), the interior of the mounting plate (301) is provided with a groove (305), the protrusion (304) and the groove (305) are plugged together, the middle part of the mounting plate (301) is rotatably connected with a disassembly assembly, the disassembly assembly comprises a rotating rod (306), the rotating rod (306) is rotatably connected to the middle part of the mounting plate (301), a pull rope (307) is fixedly connected to the outside of the rotating rod (306), and the other end of the pull rope (307) is fixedly connected to the side of the protrusion (304) close to the return spring (303).

2. A vacuum compression geobag system according to claim 1, characterized in that: The geobag module comprises: The bag body is made of polyethylene or polyvinyl chloride sealing film and woven cloth, the inner layer is a sealing film, the outer layer is a fabric composite material, the bag body is formed by a heat-sealing process to form a geotextile bag with a cavity bag, and the negative pressure inside the bag body External environmental pressure The difference between them determines the intensity of soil compaction: ； in: is the pressure difference between the inside and outside of the bag, in Pa; is the external environmental pressure, in Pa; It is the negative pressure inside the bag, in Pa.

3. A vacuum compression geobag system according to claim 2, characterized in that: The vacuum compression control module comprises: A vacuum interface, which is fixed in the middle of the geobag body; A vacuum pump is connected to the vacuum interface of the geobag body to form a negative pressure by vacuuming. The differential control is started, and the pumping rate is expressed by the following formula: ； in: The pumping rate indicates the amount of air extracted by the vacuum pump per unit time, in m3 / s; is the extraction coefficient, in m / s·Pa, which is related to the performance of the vacuum pump and the soil type; It is the interface area between the vacuum pump and the bag body, measured in m2, which determines the air flow capacity; and : are the external atmospheric pressure and the negative pressure inside the bag, in Pa; The regulating valve is used to control the change of vacuum degree and adjust the vacuum degree according to the soil characteristics at different stages.

4. A vacuum compression geobag system according to claim 2, characterized in that: The drainage system module comprises: The drainage branch pipe adopts high-strength soft permeable pipe, and the pipe body is wrapped with permeable filter cloth to remove pore water during the compaction process; A three-way connecting pipe, which is used to connect multiple drainage branch pipes to the main pipe to form a complete drainage channel; The main pipe is used to collect the water discharged from all drainage branches and guide it out of the system.

5. A method for using a vacuum compressed geobag, characterized in that: Using a vacuum compression geobag system according to any one of claims 1 to 4 comprises the following steps: A vacuum compressed geotextile bag body is provided, wherein the bag body is made of a composite material, a sealing film is provided inside, and a woven cloth is provided outside; Soil is filled into the geobag body through the filling port (1), and during the filling process, stones and large particles are blocked by the filter box (302). After the filling is completed, the connecting plate 1 (201) and the connecting plate 2 (202) are docked, so that the block (207) enters the slot (208), thereby closing the filling port (1); The air in the geobag is extracted by a vacuum pump to form negative pressure to achieve compaction and consolidation of the soil; Start the drainage system module to drain the pore water in the soil through the drainage branch pipe until the soil reaches the expected consolidation degree; After the compaction and consolidation process is completed, the vacuum extraction is stopped and the soil treatment is completed; The pull rope (307) is rotated by rotating the rotating rod (306) to pull the protrusion (304) out of the groove (305), thereby releasing the restriction on the mounting plate (301), so that the filter box (302) can be taken out and cleaned, and the installation operation of the filter box (302) is completed by inserting the two mounting plates (301) into the connecting plate 1 (201) and the connecting plate 2 (202).

6. The method for using a vacuum compressed geobag according to claim 5, characterized in that: The filling port (1) further comprises: the geobag adopts an inner and outer double-layer sealing membrane structure, the length is greater than 50 cm, and the soil is filled by hydraulic filling or mechanical filling.

7. The method for using a vacuum compressed geobag according to claim 5, characterized in that: The vacuum pumping process is carried out in multiple stages, and the multiple stages include: In the initial stage, a relatively low vacuum of 40-50 kPa is used to remove free water from the soil; In the middle stage, the vacuum degree is moderately increased to 60-70 kPa to promote water discharge and consolidate the soil; In the final stage, high vacuum of 80 kPa and above is used for thorough drainage and compaction.

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