KR20220043516A - Reinforcing foundation method using Expandable composition - Google Patents

Abstract

The present invention relates to a high-pressure expansion factory floor subsidence restoration method capable of precise restoration and control using a vision recognition device, which comprises the steps of: setting a new job in an instrumentation system; inserting an injection pipe into a drilled hole; measuring a floor elevation amount of a subsidence restoration part in real time; finishing the drilled hole with non-shrinkage concrete; and checking restoration in real time.

Description

High-pressure expansion factory floor subsidence restoration method capable of precise restoration and control using vision recognition equipment {Reinforcing foundation method using Expandable composition}

The present invention relates to a high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using vision recognition equipment. No shrinkage occurs, and the measured settlement amount is digitized using a measurement system that includes vision recognition equipment on the meter, and through this, it is possible to control the injection amount while monitoring the restoration amount in real time. It relates to a high-pressure expansion factory floor settlement restoration method that allows precise restoration and control using vision recognition equipment that can accurately control the range and can restore precision in millimeters.

Recently, due to the limitation of available land, architectural structures such as factories, commercial buildings, and houses, or civil structures such as roads, tunnels, bridges, railways, ports, and airports, are being built across the country on various grounds.

However, due to various reasons such as subsidence of the foundation ground, the influence of adjacent new structures, and poor construction, a lot of damage to these structures is occurring. For example, after a factory is built on a soft ground, a large amount of groundwater is pumped up as factory water, a large amount of water due to the development of a nearby underground tunnel, or insufficient soil compaction in a sea area reclaimed land or large-scale reclamation site, etc. Inundation of extensive foundation ground is occurring in several areas.

In particular, when ground subsidence occurs in an area where a building structure is built, safety problems such as adversely affecting the driving of vehicles due to the inclination of the building or the occurrence of a level difference in the road are also caused.

Accordingly, construction work to reinforce the foundation ground or repair the submerged ground is continuously being performed. Generally, it is divided into chemical and non-chemical types, and non-pharmaceutical types include cement, asphalt, and clay.

Chemical grout materials include sodium silicate-based, lignin-based, acrylamide-based and polyurethane resin-based grout materials.

Non-chemical liquids contain solid particles in solution, and are mainly used by mixing cement-based and sodium silicate-based materials as a mixing material. Cement system is not injected except for granular soil, and it takes a lot of time to harden. Cement systems have an average particle diameter of 15 to 20 μm and a maximum particle diameter of 80 to 100 μm, so the penetration injection area is limited.

As the injection method for ground reinforcement currently used in domestic construction sites, the non-drug injection method using mortar or concrete as the main material is common.

The so-called compaction grouting (CGS) method, which injects these non-fluid materials through multiple inlets, is mainly adopted for non-chemical systems because the particles are thicker than for chemical systems.

The non-chemical injection method is a method of injecting into the ground by controlling the mixing ratio, setting speed, and injection pressure of the mixed material. , basement floors, stores) is difficult and has limitations in that it interferes with life and operation during construction. In addition, it affects adjacent structures and has disadvantages in that constructability is reduced in geological areas with low permeability coefficient, and precision restoration in mm unit is impossible because the air is long.

On the other hand, chemical liquid systems can be injected and filled deep into microcracks, but the reaction rate and foaming rate are affected by the soil material and moisture content of the basement layer. There was a problem in that durability was limited and there was concern about environmental pollution due to continuous dissolution and shrinkage.

As a technology that is the background of the present invention, there is Patent Registration No. 0959691 "Structure reinforcement or restoration method" (Patent Document 1). In the background art, 'a method for reinforcing or restoring a structure for reinforcing and restoring subsidence or step difference occurring in a structure, the method comprising: injecting a predetermined injection pipe into the lower portion of the injection area; injecting the mixed urethane foam composition through a separate device through the injection tube; and the step of expanding the injected urethane foam composition by reaction at the bottom of the structure, wherein the urethane foam composition contains 60 to 90 wt% of castor oil, 3 to 30 wt% of a chain extender, 05 to 5 wt% of anionic surfactant %, a metal catalyst selected from tin, bismuth and iron, and a tertiary amine catalyst in a ratio of 4 to 6: 6 to 4 by weight of a composite catalyst of 05 to 5 wt %, foam stabilizer 01 to 05 wt %, foaming agent 1 to 5 wt % subject containing %; A curing agent containing an isocyanate compound; a method for reinforcing or restoring a structure characterized in that it consists of 'is proposed.

However, the background art also has a problem that it is impossible to grasp the situation of the ground restoration in real time during the restoration of the ground, and accordingly, it is difficult to accurately restore the mm unit.

Patent Registration No. 0959691 "Structure reinforcement or restoration method"

The present invention is to solve the above problems, and the user can check the degree of restoration of the ground in real-time numerically, so it is possible to accurately control the injection amount and injection range of the composition with a short gel time, so that precise restoration in mm is possible In addition to being able to work in a narrow space (pits, basement floors, burials, etc.), it can be injected even in geological areas with very low permeability (up to 10 ^-6 ), The purpose is to provide a high-pressure expansion factory floor settlement restoration method that can be precisely restored and controlled using vision recognition equipment that prevents the erosion of the foam due to the inflow of .

The present invention is (a) setting up a new task in a measurement system comprising a measuring instrument that measures the height from the ground, and a vision recognition device that is installed on one side of the instrument and digitizes the measured settlement amount by recognizing the information measured by the instrument ; (b) installing the measurement system and the injection vehicle in the subsidence restoration site; (c) measuring the subsidence restoration site and expressing the state before restoration of the restoration target floor as a three-dimensional image; (d) drilling the subsidence restoration site to a certain depth to form a perforated hole and inserting an injection pipe into the perforated hole; (e) measuring in real time the amount of floor rise of the subsidence restoration site while injecting the foam composition for subsidence restoration with an injection gun connected to the injection pipe using a measuring instrument and vision recognition equipment; (f) when the injection is completed, removing the injection pipe and closing the drilling hole with non-shrink concrete; (g) after completion of restoration, expressing the measured value measured by the measuring instrument as a three-dimensional image to confirm the restoration in real time We would like to provide a factory floor settlement restoration method.

In addition, in step (b), the instrument of the measurement system is set to the zero point at a predetermined height in advance, and moved to the settlement restoration site to measure the height different from the zero point. It is intended to provide a controllable high-pressure expansion plant floor settlement restoration method.

In addition, in step (d), a plurality of perforated holes are formed around the subsidence restoration site to provide a high-pressure expansion factory floor subsidence restoration method that can be precisely restored and controlled using a vision recognition device, characterized in that it is perforated. do.

In addition, in step (e), firstly, the foam composition for settlement restoration is injected to form the foundation, and secondly, the foam composition for settlement restoration is injected on the upper part of the foundation formation part to form a ground support layer to restore the ground. It is intended to provide a high-pressure expansion factory floor subsidence restoration method that can be precisely restored and controlled using the characteristic vision recognition equipment.

In addition, in step (a), the measurement system is composed of a measuring instrument for measuring the height on the ground, a vision recognition device installed on one side of the measuring instrument to recognize the information measured by the instrument, and the vision recognition device a measurement device comprising a transmitter for transmitting measurement information measured in ; Using vision recognition equipment, characterized in that it includes a server connected to the transmitter wirelessly or wired to receive information transmitted from the transmitter, and a user terminal that is connected to the server wired or wirelessly and can grasp the measured information in real time. Therefore, it is intended to provide a high-pressure expansion factory floor settlement restoration method that can be precisely restored and controlled.

In addition, the foaming composition for settlement restoration is a main agent comprising a thermoplastic polyolefin-based resin, a polyol compound, a diol-based chain extender, a catalyst, and a foaming agent; and a curing agent containing a diisocyanate compound; to provide a high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using vision recognition equipment, characterized in that it includes.

The high-pressure expansion factory floor subsidence restoration method, which can be precisely restored and controlled using the vision recognition equipment of the present invention, is not affected by the moisture contained in the ground by using the sedimentation restoration foam composition. Using a measurement system that consists of a vision recognition device, the measured settlement amount is digitized and the injection amount can be controlled while monitoring the restoration amount in real time. There is an effect that the precision restoration of the unit is possible.

In addition, by injecting the subsidence restoration foam composition that is foamed and cured in a short time into the ground to be restored to restore the subsidence, construction is possible with only a very small-diameter perforated hole, making it possible to construct in a narrow space (pits, basement floors, stores, etc.). ), as well as injectable in lipids with very low permeability coefficient (up to 10 ^-6 ), and is not affected by the moisture contained in the ground and prevents erosion of the foam due to inflow of rainwater or groundwater, resulting in a stable form It also has the effect of supporting the inside of the ground and allowing it to be restored.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings It should not be construed as being limited.
1 is a diagram schematically illustrating a high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using the vision recognition equipment of the present invention.
2 is a diagram schematically illustrating a measurement system used in the present invention.
3 is a photograph showing an embodiment of the installation of the measurement system and the injection vehicle in the present invention.
Figure 4a is a graph showing the measured settlement amount of the floor before restoration using the vision recognition equipment of the present invention by digitizing it.
Figure 4b is a graph showing the digitized amount of settlement of the site floor after restoration using the vision recognition equipment of the present invention.
5 is a view showing the microcrystal structure of the foaming composition of the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment.

1 is a diagram schematically illustrating a high-pressure expansion factory floor subsidence restoration method capable of precise restoration and control using the vision recognition equipment of the present invention, and FIG. 3 shows an example of installation of a measurement system and an injection vehicle in the present invention It is a photograph, and Fig. 4a is a graph showing the measured settlement amount of the site floor before restoration using the vision recognition equipment of the present invention by digitizing it, and Fig. 4b is a graph showing the site floor after restoration using the vision recognition equipment of the present invention It is a graph showing the measured settlement amount digitized.

The high-pressure expansion factory floor subsidence restoration method capable of precise restoration and control using the vision recognition equipment of the present invention is first installed on a measuring instrument 211 measuring the height from the ground, and at one side of the measuring instrument 211, the measuring instrument 211 ) to set a new task in the measurement system 20 consisting of a vision recognition device 212 that digitizes the measured settlement amount by recognizing the information measured in (a).

A non-fixing equipment 212 is installed in the measuring instrument 211, and the setting value is initialized by software to set it.

At this time, if necessary, the measuring instrument 211 of the measuring system 20 sets the level of the target value at the subsidence restoration site to zero. To this end, if the zero point is set at a point out of the subsidence restoration site, and the measuring instrument 211 is moved to the subsidence restoration site in the step to be described later and installed, the value measured by the instrument 211 at the subsidence restoration site is less than the zero point. , restore it by setting the height different from the zero point as the target.

After that, the measurement system 20 and the injection vehicle are installed in the subsidence restoration site (b)

3, a plurality of measurement systems 20 are installed around the floor to be restored, and an injection vehicle is installed in the vicinity, and the measurement system 20 is installed avoiding the place where the injection pipe will be installed in the subsidence restoration site. do.

The equipment composition of the injection vehicle is largely composed of a supply pump, an injection machine, and an injection gun.

The SUPPLY PUMP serves to transfer the A and B materials to the Geocon Reactor machine to produce high-density polyurethane foam. It is composed integrally with the Geocon Reactor machine and operates by air, and one A and B material are installed in each machine. There is an automatic stop function.

A REACTOR MACHINE is a machine in which temperature, mixing, and pressure are automatically controlled. A heating device that automatically adjusts the temperature is installed to maintain the most stable and ideal temperature of the foam (35 to 40 degrees). In consideration of this, there is an instantaneous heating function that automatically adjusts the temperature. In addition, the foam, which is a two-component foaming composition in which two raw materials are mixed and foamed, has the best quality when the two raw materials are uniformly mixed. The injection pressure is 4kgf/cm ² ~ 5kgf/cm ² and the A and B materials, which have been preheated to a constant temperature, are discharged at low pressure through the injection hose to the injection gun. do.

The injection gun 15 is a device for injecting the chemical into the ground. When material A and material B preheated through the injection machine are transferred to the end of the injection hose, the injection gun 15 is connected to the end of the injection hose and then the injection pipe installed on the floor ( 12) is coupled to the injection gun 12 to inject the transferred materials A and B, and the two chemical solutions are mixed at the end of the injection gun 15 and injected into the lower part of the floor through the injection pipe 12.

In the measurement system 20, the measuring instrument 211 and the vision recognition equipment 212 are installed around the subsidence restoration site, and the server unit 220 or the user terminal 230 is installed in a convenient place for use.

Thereafter, the subsidence restoration site is measured with the measurement system 20 to express the state before restoration of the restoration target floor as a three-dimensional image (c).

As shown in Fig. 4a, by measuring the subsidence restoration site, the state before restoration of the restoration target floor is expressed as a three-dimensional image.

Thereafter, as in FIGS. 1A and 1B , the subsidence restoration site 1 is drilled to a predetermined depth to form a perforated hole 11 and the injection pipe 12 is inserted into the perforated hole 11 (d).

After drilling the subsidence restoration site (1) and the lower part of the foundation, insert the injection pipe (12) up to 0.5~1m below the foundation.

The perforation hole 11 is formed in a plurality of spaced apart from the periphery of the subsidence restoration site to form a plurality of perforations, and the subsidence restoration sites are injected one by one in order to restore them sequentially. can prevent this from happening.

Then, as in FIGS. 1c and 1d, while injecting the foaming composition for settlement restoration through the injection pipe 12, the amount of floor rise of the settlement restoration site is measured in real time (e).

The floor rise is measured in real time by the measuring instrument 211, and the measurement information is grasped by the vision recognition device 212 and transmitted back to the server unit 220 and the user terminal 230 so that the user can see the floor rise of the subsidence restoration site in real time. to be identified in real time.

The foam composition for settlement restoration of the present invention is directly injected into the lower part of the ground of the settlement restoration site through an injection pipe 12 using an injection gun 15 from the tank 13 filled with the foam composition for settlement restoration, and is present in the ground. The void is filled with expansion pressure and consolidated at the same time to form the ground support layer 17 to reinforce and restore the ground. You can secure enough stamina to handle the heavy load.

The injection of the foaming composition for settlement restoration is not injected at once, but is injected sequentially and repeatedly, so that the amount of restoration of the ground can be checked in real time and fine adjustment is possible.

Therefore, the user can directly and remotely check and control the diffusion diameter and injection amount of the foam composition for settlement restoration.

In this way, finely check and adjust the height and degree of ground restoration, and if the settlement restoration site is wide, move the location and repeat steps (c) to (e).

In particular, after forming the foundation forming part by first injecting the subsidence restoration foam composition, secondly injecting the subsidence restoration foam composition on the upper part of the foundation forming part to restore the ground, the foundation forming part is compacted in the lower part of the ground, By injecting the composition on it again, it can be made easy to restore the ground.

After that, the injection pipe 12 is removed, the drilling hole 11 is closed with non-shrink concrete (e), and the measurement value measured through the measuring instrument 211 is expressed as a three-dimensional image after restoration is completed to restore the restoration in real time. to confirm (g).

As shown in FIG. 4b, the measured settlement amount of the site floor restored after restoration is completed is digitized and shown in comparison with the measured settlement amount of the site floor before restoration in FIG. 4a.

2 is a diagram schematically illustrating a measurement system used in the present invention.

The measurement system 20 in the present invention includes a measuring instrument 211 such as a laser leveler to measure the height on the ground, and a vision recognition installed on one side of the measuring instrument 211 to recognize information measured by the measuring instrument 211 . It consists of the equipment 212 so that the information measured by the instrument 211 can be checked in real time by the vision recognition equipment 212, and a separate transmitter 213 can be configured to transmit the measured information in real time.

The transmitter 213 may be integrally configured with the non-stationary equipment 212 , and may be connected to the server 220 by wire or wirelessly to enable transmission.

The server 220 includes a DB unit that stores the prior information of the subsidence restoration site, the restoration plan target value information of the subsidence restoration site, and the measured ground restoration information received through the transmitter 213, and the dictionary of the subsidence restoration site in the DB unit. A calculation processing unit that compares and processes information, the restoration plan target value information of the subsidence restoration site, and the measured ground restoration information received through the transmitter 213, and the information stored in the DB unit to the user terminal 230 in real time to transmit and receive It may be made by a communication unit.

In this way, the ground restoration information of the subsidence restoration site stored in the server 220 can be received and confirmed in real time by the user terminal 230, so that the injection amount and injection range of the composition with a short gel time can be accurately controlled. Precise restoration is possible, and accurate control of injection amount and injection range is possible.

In particular, it is possible to check the pre-information of the subsidence restoration site in the server 220, the restoration plan target value information of the subsidence restoration site, and the measured ground restoration information received through the transmitter 213 in the user terminal 230, and accordingly The user terminal 230 may directly modify information stored in the server 220 (eg, restoration plan target value information of the subsidence restoration site).

The user terminal 230 may be formed of various terminals such as a notebook computer, a PC, and a pad smartphone.

The foaming composition for settlement restoration of the present invention includes a main agent comprising a thermoplastic polyolefin-based resin, a polyol compound, a diol-based chain extender, a catalyst, and a foaming agent; and a curing agent including a diisocyanate-based compound.

Since the thermoplastic polyolefin-based resin softens when heated and exhibits plasticity when cooled, it solidifies when cooled. By improving the structural reinforcement and dimensional performance by being physically entangled in the present invention, it can have superior structural performance and durability compared to the conventional polyurethane-based foam composition.

Examples of the thermoplastic polyolefin resin include polyetherene, polypropylene, ethylene-vinyl acetate copolymer (EVA), poly(1-butene), poly(4-methyl-1-pentene), polynorbornene, and polydicyclopentadiene. , poly(1,4-butadiene) and at least one selected from the group consisting of polystyrene may be preferably used, but is not limited thereto.

In this case, the thermoplastic polyolefin-based resin is preferably in the form of a powder having a diameter of 0.01 to 100 μm, or a fibrous material having a diameter of 0.01 to 10 μm and a length of 1 to 100,000 μm, so that it can be uniformly distributed between the polyurethane polymer chains. Do.

In addition, the thermoplastic polyolefin-based resin preferably contains 1 to 50 parts by weight based on 100 parts by weight of the foaming composition. The degree of physical entanglement with the material may be insignificant, and the durability of the polyurethane foam may be reduced, and if the content exceeds 50 parts by weight, the foaming performance of the polyurethane is deteriorated, making it difficult to apply to ground reinforcement.

As the polyol compound as a reactant for forming a urethane bond, polyether polyol or polyester polyol may be used alone or as a mixture thereof, but in the present invention, polyether polyol having good fluidity is preferably used.

Therefore, as the polyol compound, one selected from the group consisting of polyethylene glycol, polypropylene glycol, polybutylene glycol, poly (trimethylene ether) glycol, poly (tetramethylene ether) glycol and poly (trimethylene-co-ethylene ether) glycol More preferably, more than one species may be used, but the present invention is not limited thereto.

In addition, the present invention further strengthens the intermolecular bond by using a diol-based chain extender as a component for forming the polyurethane foam, and the diol-based chain extender includes ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, Dipropylene glycol, butylene glycol, 1,3-butanediol, 1,4-butanediol, 2-methylpentanediol, 1,5-pentanediol, 1,6-hexanediol, hexylene glycol, neopentyl glycol, 4- At least one selected from the group consisting of cyclohexanedimethanol, trimethylol propane and pentaerythritol is used, and ethylene glycol having a simple structure and high reactivity can be preferably used.

The foaming composition according to the present invention contains an amine-based compound or an organometallic compound as a catalyst serving as a reaction accelerator for forming a polyurethane bond. Examples of the amine-based catalyst include triethylamine, triethylenediamine, and tetramethylbutanediamine. , N-methyldicyclohexylamine, N,N-dimethylcyclohexylamine or N-methylmorpholine as organometallic compound catalysts such as stannous octylic acid, di-n-butyltin diacetate, di-n- Any one selected from the group consisting of butyltin dilaurate and di-n-butyltin dioctoate may be used, but is not limited thereto.

In addition, in order to form a foam from the foaming composition according to the present invention, the foaming composition necessarily includes a foam, and as the foaming agent, water, butane, pentane, hexane, heptane, methylene chloride, 1,1,1,2-tetra Fluoroethane, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3-pentafluorobutane, 1,1-dichloro-1-fluoroethane, 1-chloro1 Any one selected from the group consisting of ,1-difluoroethane and chlorodifluoromethane is used, and water is preferably used in consideration of ease of handling.

In addition, the foaming composition of the present invention contains a diisocyanate-based compound that functions as a curing agent as a reactant for forming a urethane bond by reacting with a polyol compound in addition to the above-mentioned subject matter, and as the diisocyanate-based compound, a known aliphatic di Isocyanate, alicyclic diisocyanate or aromatic diisocyanate can be used without distinction, but hexamethylene diisocyanate trimer, 4,4'-dicyclohexylmethane diisocyanate, 4,4-dimethylphenylmethane diisocyanate, bis-4-( Isocyanate Cyclohexyl)methane, hexamethylene diisocyanate, polymeric methylene diphenyl diisocyanate, naphthalene diisocyanate, xylene diisocyanate, pphenylene diisocyanate, lysine diisocyanate, toluene diisocyanate, tetra methylene diisocyanate, trans-1 ,4-cyclohexane diisocyanate, tetramethyl-1,3-xylene diisocyanate, isophorone diisocyanate, dimethyl diisocyanate, 1,1,6,6,-tetrahydrofluoro-hexamethylene diisocyanate, At least one selected from the group consisting of trimethyl hexamethylene diisocyanate, phenylene diisocyanate, dimethyl diphenyl diisocyanate and triphenyl methane triisocyanate is preferably used.

The coagulation reaction mechanism is that a solution composed of a polyol hydroxyl group and isocyannnate is urea-bonded through the process of mixing and stirring, forming a three-dimensional network structure. The main mechanism of this crosslinking reaction is polymerization -> hydrolysis -> foaming - > The crosslinking reaction is done in the order of the bonding equation as follows.

polymerization

hydrolysis

foaming reaction

crosslinking reaction

5 is a view showing the microcrystal structure of the foaming composition of the present invention.

As a result of examining the solidified foam composition as shown in FIG. 5 through observation at 25 times magnification through SEM (Scanning Electron Microscopy) imaging, it was found that the microcrystal structure of the geocon was honeycomb. In addition, as a result of analyzing the chemical composition using an X-ray analyzer of SEM, it was confirmed that calcium carbonate (CaCo ₃ ) was composed of 74.5% and silicon dioxide (SiO ₂ ) 25.5%.

In the existing urethane foam composition, stability could not be ensured when applied to the ground containing moisture because the polyol compound (subject) reacting with the curing agent isocyanate has good compatibility with water. By adding the thermoplastic polyolefin-based resin to the polyurethane foam, the thermoplastic polyolefin-based resin is melt-bonded inside the foamed cell structure due to internal heat generated in the process of forming the polyurethane foam, so that it is not affected by moisture.

More specifically, since the thermoplastic polyolefin-based resin softens when heated and exhibits plasticity, and solidifies when cooled, the polyol compound and diisocyanate react to form a poly It is physically entangled between the urethane polymer chains to improve the structural reinforcement and dimensional performance, so that it can have superior structural performance and durability compared to the conventional polyurethane-based foam composition.

As such, the foam composition in the present invention does not react with water, and is not affected by moisture contained in the ground, so that the foam does not shrink, and it prevents erosion of the foam due to inflow of rainwater, etc. It can support the interior of the soil.

The high-pressure expansion factory floor subsidence restoration method, which can be precisely restored and controlled using the vision recognition equipment of the present invention as described above, is not affected by the moisture contained in the ground by using the subsidence restoration foam composition, so that the shrinkage of the foam does not occur. Instead of using a measurement system that consists of a vision recognition device in the instrument, the measured settlement amount is digitized, and the amount of injection can be controlled while monitoring the amount of restoration in real time. It has the effect of enabling precise restoration in mm units. Also, by injecting the subsidence restoration foam composition that is foamed and hardened in a short time into the restoration target ground to restore the subsidence, construction can be done with only a very small-diameter perforated hole. This makes it possible to work in a narrow space (pits, basement floors, ^burials , etc.) It also has the effect of preventing the erosion of the foam due to the inflow of the back, supporting the inside of the ground in a stable form and allowing it to be restored.

So far, the present invention has been described in detail with reference to the presented embodiment, but those skilled in the art can make various modifications and variations of the invention without departing from the technical spirit of the present invention with reference to the presented embodiment. will be. The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

1: Settling restoration site
11: punch hole
12 : injection pipe
20: measurement system
210: measuring equipment
211: instrument
212: vision recognition equipment
213: transmitter
220 : server
230: user terminal

Claims (6)

(a) a measuring instrument 211 for measuring the height on the ground, and a vision recognition device 212 installed on one side of the measuring instrument 211 to recognize the information measured by the measuring instrument 211 and digitize the measured settlement amount. setting up a new job in the metrology system 20;
(b) installing the measurement system 20 and the injection vehicle in the subsidence restoration site;
(c) measuring the subsidence restoration site and expressing the state before restoration of the restoration target floor as a three-dimensional image;
(d) drilling the subsidence restoration site to a predetermined depth to form a perforated hole 11 and inserting the injection pipe 12 into the perforated hole 11;
(e) measuring the amount of floor rise of the subsidence restoration site while injecting the foam composition for subsidence restoration with an injection gun connected to the injection pipe 12 using a measuring instrument 211 and a vision recognition device 212 to measure in real time;
(f) when the injection is completed, removing the injection pipe 12 and closing the perforated hole 11 with non-shrink concrete;
(G) After restoration is completed, the measurement value measured through the measuring instrument 211 is expressed as a three-dimensional image to confirm the restoration in real time; precision restoration and control using vision recognition equipment, characterized in that it includes Possible high-pressure expansion factory floor settlement restoration method. The method according to claim 1,
In step (a), the instrument 211 of the measurement system 20 is set to a zero point at a predetermined height in advance,
In step (b), a high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using vision recognition equipment, characterized in that the height difference from the zero point is measured by moving it to the settlement restoration site. The method according to claim 1,
In step (d),
A high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using vision recognition equipment, characterized in that the drilling holes 11 are formed in plurality around the settlement restoration site to be drilled. The method according to claim 1,
In step (e),
First, by injecting the foam composition for settlement restoration to form the foundation forming part, and secondly by injecting the foam composition for settlement restoration on the upper part of the foundation formation part to form a ground support layer to restore the ground. Using vision recognition equipment A high-pressure expansion factory floor settlement restoration method that enables precise restoration and control. The method according to claim 1,
In step (a),
The measurement system 20,
It consists of a measuring instrument 211 for measuring the height from the ground, a vision recognition device 212 installed on one side of the measuring instrument 211 to recognize information measured by the measuring instrument 211, and a vision recognition device 212. a measurement device 210 comprising a transmitter 213 for transmitting measurement information measured by the vision recognition device 212;
A server 220 connected to the transmitter 213 wirelessly or by wire to receive information transmitted from the transmitter 213, and a user terminal ( 230), and a high-pressure expansion factory floor settlement restoration method that can be precisely restored and controlled using vision recognition equipment. The method according to claim 1,
Foam composition for settlement restoration thermoplastic polyolefin resin, a polyol compound, a diol-based chain extender, a catalyst, a subject including a foaming agent; and
A high-pressure expansion factory floor settlement restoration method capable of precise restoration and control using vision recognition equipment, characterized in that it includes a curing agent containing a diisocyanate-based compound.

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