KR100628980B1 - The soft ground improvement agitation system add the excavtor - Google Patents

Abstract

The present invention relates to a stirring device having an excavation function for the soft ground, in the case of the soft ground hardener (cement, solid, water, etc.) sprayed into the excavation hole does not leak into the ground quickly cured inside the excavation hole For the purpose of

In the stirring device having the excavation function for the soft ground according to the present invention, the drive motor 110, the transmission 120 to generate a rotational force by the power of the drive motor 110, so that the transmission power can be transmitted to the transmission 120, respectively. It is composed of the first stirring shaft 130, the quick-acting injection pipe 163, the second stirring shaft 140, the high-agent spray pipe 153 and the third stirring shaft 180 to be connected. The fastener injection pipe is a pipe in which a flow path 163a is formed, and an upper end thereof is connected to receive power transmission from the transmission 120, and an excavation bit 164 is formed at a bottom thereof, while stirring is performed at a lower circumference thereof. Screw 165 is formed.

Agitation device, excavation, high binder, quickener

Description

Soft ground improvement agitation device with excavation function {The soft ground improvement agitation system add the excavtor}

1 is a block diagram of a stirring device having a drilling function for the soft ground according to the first embodiment of the present invention.

Figure 2 is a cross-sectional view of the stirring shaft applied to the stirring device having a drilling function for the soft ground according to the first embodiment of the present invention.

Figure 3 is an excerpt sectional view of the main portion of the high drug injection pipe applied to the stirring device having a excavation function for the soft ground according to the first embodiment of the present invention.

Figure 4 is a partial cross-sectional view of the rapid jet injection pipe applied to the stirring device having a excavation function for the soft ground according to the first embodiment of the present invention.

Figure 5 is a block diagram of a stirring device having a soft ground excavation function according to a second embodiment of the present invention.

Figure 6 is a block diagram of a double structure injection pipe applied to the stirring device having a drilling function for the soft ground according to the second embodiment of the present invention.

Figure 7 is a block diagram of a stirring device having a drilling function for the soft ground according to the third embodiment of the present invention.

Figure 8 is a block diagram of a rapid injection spray pipe applied to the stirring device having a drilling function for the soft ground according to the third embodiment of the present invention.

Figure 9 is a bottom view of the hammer bit applied to the stirring device having a excavation function for the soft ground according to the third embodiment of the present invention.

<Description of Signs for Main Parts of Drawings>

100: stirring device, 110: driving motor

120: transmission, 130, 140, 180: stirring shaft

150: high-drug injection means, 160: rapid-jet injection means

The present invention relates to an agitator having a soft ground excavation function, and more particularly, when the construction of a building on a soft ground such as a fast groundwater or beach, such as a high binder (cement, solid fire) The present invention relates to a stirring device having a excavation function for soft ground, which can reduce the cost and effectively reinforce the ground by allowing it to harden quickly without leaking.

In general, when building new buildings, clearing roads, or installing facilities such as underground manholes, the structure that is to be constructed after reinforcing the soft ground in the case of soft ground consisting of sea-viscosal clay and stratified clay, I installed it.

As a method of reinforcing the soft ground, there is a deep mixing treatment method of mixing and mixing the high-coating agent, which is a chemical solution, with soft soil, which is made of cement, bentonite, fly ash, slag, etc. in the soil to the desired depth in the field. In order to improve the ground by mixing a plurality of stirring shafts with stirring and excavation blades and hammers for mixing and mixing high binders, injecting the stirring shafts into the soft ground and spraying the high binders to the soil to perform mechanical stirring with the soil. If there is a solid ground in the soft ground by the rotation of the stirring blade is to use a multi-axis rotary stirring device consisting of a drilling bit for excavating hard ground while spraying compressed air.

On the other hand, in addition to these methods, there is a method of constructing the building according to its position after constructing a columnar or rectangular pile body having a high strength to securely support the pillar of the building in the ground or a sheet pile for waterproofing.

However, according to the conventional method using a stirring device, in the case of soft ground where the flow rate of the groundwater is high or the water content is high, such as the beach, the high grounding agent leaks into the ground and the high grounding agent is not filled in the ground. Even if it is filled, it is not practically applied in soft ground because of the large economic waste by using more than necessary amount.

Therefore, there is a disadvantage that the construction cost is enormously expensive by applying a method using a high-cost sheet pile for reinforcement of the soft ground.

The present invention is to solve the above-mentioned problems, the low cost by filling the high-drug agent in the excavation hole of the ground to reinforce the ground, even if the soft ground does not leak into the ground quickly hardened inside the excavation hole The purpose of the present invention is to provide a stirring device having an excavation function for soft ground so as to effectively reinforce the soft ground.

The stirring device having a soft ground excavation function according to the present invention for achieving the above object, a driving motor, at least one stirring shaft for drilling and stirring the ground by rotating the drive motor, excavation excavated by the stirring shaft A high drug injection means for injecting a high drug in the ball and a rapid drug injection in the drilling hole to accelerate the chemical reaction of the high drug sprayed by the high drug injection means to accelerate the high drug to rapidly cure the high drug It characterized in that it comprises a means.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

<Example 1>

As shown in FIG. 1, the stirring device 100 having the excavation function for the soft ground according to the present embodiment includes a drive motor 110, a transmission 120 for dividing the rotational force of the drive motor 110, and a transmission ( 120 is disposed between the first and second stirring shafts 130 and 140 for excavating and stirring the ground while the power is rotated in place and the first and second stirring shafts 130 and 140 to excavate a high binder containing cement. High binder injection means 150 for spraying the ball (1), and a fastener is injected into the excavation hole (1) to ensure that the high binder is quickly hardened in the excavation hole (1) to spray the reinforcement of the ground Means 160.

The drive motor 110 and the transmission 120 are well known and detailed description thereof will be omitted.

Since the first and second stirring shafts 130 and 140 have the same structure, only the first stirring shaft 130 is described as an example, and the second stirring shaft 140 is denoted by the same form as the first stirring shaft 130. As shown in FIG. 2, the first stirring shaft 130 receives a rotational force from the transmission 120 to rotate the tubular casing 131 and the stirring screw 132 formed on the outer circumferential surface of the casing 131, and the casing 131. It is composed of a plurality of excavation bits 134 formed on the bottom of the hammer bit 133, the hammer bit 133 to excavate the ground is installed so as to be sunk by the actuator (hydraulic / pneumatic cylinder) inside. In order to reduce the resistance with the ground during the excavation by the hammer bit 133, an air injection hole 135 for injecting air to the outside is formed in the hammer bit 133, and the excavation bit 134 is lower toward the center part. It is formed to protrude toward.

The high drug injection means 150 is a high drilling tank 151, pump 152 for pumping the high drug stored in the high drug tank 151 and the high charge by the pumping of the pump 152 to receive the excavation hole of the ground It consists of the high drug injection pipe 153 which injects into (1).

As shown in Figure 3, the high drug injection pipe 153 is a tubular shape having a hollow flow path 153a therein and at least one injection hole 153b for injecting the high binder supplied along the flow path 153a to the outside. Is formed, the upper end is connected to the transmission 120 is rotated by receiving the power of the drive motor 110 while spraying a high binder. In addition, the high drug injection pipe 153 is provided with a plurality of excavation bits 154 at the bottom thereof so as to spray the high drug and excavate the ground, and a stirring screw 155 is formed at the periphery thereof. In the drawings, for convenience, the high-payment tank 151 and the pump 152 are described as being mounted on the driving motor 110. However, the installation position of the high-payment tank 151 and the pump 152 is not limited to that shown in the drawings. no.

As shown in FIG. 1, the quickener spraying means 160 is driven by the operation of the quickener tank 161, a switch (not shown) to pump a quickener stored in the quickener tank 161, and It consists of a quickener injection pipe 163 for injecting the quickener pumped by the pump 162 into the excavation hole (1). In the drawings, the quickener tank 161 and the pump 162 are described as being mounted on the driving motor 110 for convenience, but the installation positions of the quickener tank 161 and the pump 162 are not limited to those shown in the drawings. no.

As shown in FIG. 4, the quickener injection pipe 163 is a tubular shape having a hollow flow path 163a therein and at least one injection hole 163b for injecting the fastener flowing along the flow path 163a to the outside. ) Is formed. The injection hole 163b may be open toward the bottom or open laterally. The injection holes 163b may be formed only at the lowermost end of the injection pipe 163, or a plurality of injection holes 163b may be formed at regular intervals along the length direction of the injection pipe 163. When the plurality of injection holes 163b are formed, the diameter of the injection hole 163b is increased as the distance from the pump 162 so that the rapid injection agent is uniformly injected in all the injection holes 163b formed in the injection pipe 163. Grows

The quickener spray pipe 163 is in the form of a simple pipe made of steel or high-strength synthetic resin that can spray the quickener from the bottom of the excavation hole (1), and wound around the high binder spray pipe 153 by taping 171 or the like. Can be fixed. At this time, the high drug injection pipe 153 is a rotating body, so that the first and second stirring shafts 120 and 130 and the high drug injection pipe 153 are rotatably connected so as not to interfere with the rotation of the high drug injection pipe 153. It may be wound around and fixed to the member 170.

The quickener injection hole 163b may be provided with a check valve, bending, and the like such that the injected quickener does not flow back into the quickener injection tube 163.

The operation of the stirring device having the excavation function for the soft ground according to the present embodiment configured as described above will be described.

When the stirring device 100 is placed on the ground and the driving motor 110 is driven, the power of the driving motor 110 is transmitted to the first and second stirring shafts 130 and 140 and the high drug injection pipe 153 through the transmission 120. The ground is excavated by the excavation bits 134, 144, and 154 as the first and second stirring shafts 130 and 140 and the high drug injection pipe 153 rotate with the rotational force, and when the ground is hard, hammer bits 133 and 143. While excavating from the casing (131,141) will excavate the ground. Excavation bits (134, 144, 154) are disposed in the center more protrudes to the lower than those arranged around the periphery is reduced friction resistance with the ground can be more easily excavated, excavation of the first and second stirring shafts (130, 140) When the compressed air is injected through the air injection hole 135 to remove the debris attached to the excavation bits 134 and 144, the first or second stirring shafts 130 and 140 are not stopped or broken by the debris.

After completion of the excavation to the desired depth by such excavation work and operating the high drug injection means 150, the high drug stored in the high drug tank 151 by pumping the pump 152 of the high drug injection means 150 Is supplied to the flow path (153a) of the high drug injection pipe 153 is injected into the excavation hole (1) through the injection hole (153b).

On the other hand, the injection amount of the high binder according to the diameter and the depth of the excavation hole (1) can be seen, the high binder is filled in the excavation hole (1) when the predetermined injection amount reaches the overflow of the excavation hole (1). However, if the ground is fragile and cracks exist around the excavation hole (1), the high binder is leaked into the ground through the crack, and even if a predetermined injection amount is injected, the high binder does not overflow to the outside of the excavation hole (1).

The operator checks the injection amount through a high binder flow meter (not shown) and checks the overflow of the high binder, and even if the high binder reaches the prescribed injection amount, the high binder is leaked into the ground unless it overflows from the excavation hole (1). Input

When the switch is not shown, the quickener stored in the tank 161 is supplied to the excavation hole 1 through the injection hole 163b by the pumping of the pump 162 and is supplied to the flow path 163a of the injection pipe 163. It is sprayed and mixed in the high binder to promote the hydration reaction of the cement as a high binder to harden the high binder in the drilling hole (1) at a rapid speed.

<Example 2>

5 and 6, the stirring device 100 having the excavation function for the soft ground according to the present embodiment, characterized in that the high drug injection pipe 153 and the rapid injection pipe 163 is made of a dual structure. The configuration other than that is the same as in the above-described first embodiment.

That is, the high binder injection pipe 153 and the rapid injection jet pipe 163 are made of different diameters, for example, the high binder injection pipe 153 is formed smaller than the diameter of the rapid jet injection pipe 163, and the rapid binder powder The officer 163 is made of a double structure covering the high drug injection pipe 153. At this time, it will be apparent that a flow path 163a having a size for smoothly spraying the fastener is formed between the quickener spray tube 163 and the high binder spray tube 153.

The high drug injection hole 153b may be opened toward the bottom, and the fastener injection hole 163b may be opened toward the lateral direction.

According to the present embodiment, when the high drug is injected, the high drug flows along the flow path 153a of the high drug injection pipe 153, and is injected through the injection hole 153b, and the quick agent is sprayed at the time of the rapid drug injection. It flows along the flow path 163a of the injection pipe 163, and is injected through the injection hole 163b.

According to the first embodiment described above, since the fastener injection pipe 163 is an independent tubular shape, bending deformation may occur during the excavation, and according to the present embodiment configured as described above, the fastener injection pipe 163 and the high binder The injection pipe 153 is combined in a dual structure form, which has the advantage of reducing bending deformation and breakage during excavation.

<Example 3>

As shown in FIG. 7 and FIG. 8, the stirring device 100 having the excavation function for the soft ground according to the present embodiment includes a transmission 120 generating a rotational force by the power of the drive motor 110 and the drive motor 110. For example, the first stirring shaft 130, the fastener injection tube 163, the second stirring shaft 140, which are arranged in a row from the left side (see FIG. 7) so as to receive the rotational force from the transmission 120, respectively, It consists of a high drug injection pipe 153 and the third stirring shaft 180.

The transmission 120 drives the power of the driving motor 110 to the first stirring shaft 130, the quickener injection tube 163, the second stirring shaft 140, the high binder injection tube 153, and the third stirring shaft ( 180 to transmit the rotational force.

The first stirring shaft 130, the quick injection pipe 163, the second stirring shaft 140, the high drug injection pipe 153 and the third stirring shaft 180 which are arranged in a row on the transmission 120 are one. It is rotatably supported by each of the above-described connection members 170 (shown in two in the drawing).

The first, second and third stirring shafts 130, 140 and 180 are the same as those of the first embodiment, and are provided with stirring screws 132, 142 and 182, hammer bits 133, 143 and 183 and drilling bits 134, 144 and 184.

According to this embodiment, the fastener injection pipe 163 is configured to serve as a function of digging while rotating like the high drug injection pipe 153 of the first and second embodiments. That is, as shown in FIG. 8, the fastener injection pipe 163 is a pipe in which a flow path 163a is formed, and an upper end thereof is connected to receive power transmission from the transmission 120, and an excavation bit 164 is provided on the bottom thereof. While being formed, the stirring screw 165 is formed at the lower circumference.

According to the present embodiment, the quickener injection pipe 163 can be excavated while rotating while receiving power from the driving motor 110 like the stirring shafts 130, 140, and 180 and the high binder injection pipe 153. If necessary (soft ground that needs to be cured quickly through high settlement), the rapid settlement is sprayed into the excavation hole (1) and the high settlement sprayed through the high settlement injection pipe (163) does not leak into the ground. (1) Let it harden inside.

As shown in FIG. 9, the hammer bits 133, 143, and 183 may be formed in an octagonal shape.

As described above, according to the stirring device having the excavation function for the soft ground according to the present invention, the high binder is not quickly leaked into the ground by the rapid settlement agent when reinforcing the soft ground, and thus hardened quickly inside the excavation hole. Reduce waste and reinforce the ground efficiently.

In addition, even when reinforcing the soft ground can be applied to the method according to the invention without applying a method using an expensive sheet pile has a significant effect that can significantly reduce the cost.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (4)

delete delete A drive motor 110; A transmission (120) for transmitting power of the drive motor to a rotational force; Tubular casing that rotates by receiving the rotational force from the transmission, a stirring screw formed on the outer circumferential surface of the casing, installed in the casing so as to be projected by an actuator (hydraulic / pneumatic cylinder), and an air spraying hole is formed therein Hammer bit to excavate, consisting of a plurality of excavation bits formed on the bottom of the hammer bit excavating and stirring the ground at least one stirring shaft; It has a high drug tank 151, a pump 152 for pumping the high drug stored in the high drug tank and a high drug injection pipe 153 for supplying the high drug by the pumping of the pump and spraying the drilling holes of the ground It includes a high drug injection means 150, A quickener tank 161, a pump 162 driven by the operation of the switch to pump the quickener stored in the quickener tank, and one or more injection holes 163b formed therein and communicating with the passage. ) Is a tubular and is provided with a rapid injection agent made up of a rapid injection agent injection pipe 163 for promoting the chemical reaction of the high binder by injecting the rapid binder supplied by the pumping of the pump through the injection hole into the excavation hole In the stirring device having a excavation function for the soft ground further comprises a means, 160 The high drug injection pipe of the high drug injection means and the high charge injection pipe of the rapid injection means has a different diameter, characterized in that the rapid injection pipe is composed of a double structure coupled to the circumference of the high drug injection pipe Agitating device having an excavation function for soft ground. delete

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