KR100386298B1 - Method and device for slope stabilize of using injection concrete - Google Patents

Abstract

The present invention relates to a slope stabilization method by a concrete press-fitting method and a device for fastening a slope or a ground more firmly and stably.

Slope stabilization method and the apparatus by the concrete indentation casting step, forming a hole using a breaker mounted on the excavator on the slope or ground, such as the fill slope or cut slope ;

Pouring concrete into the hole by pumping concrete into the inner space of the breaker while the breaker enters the hole;

Provided is a slope stabilization method and a device by the concrete indentation comprising a curing step of curing for a predetermined period of time so that the cast concrete has a certain strength.

The hole is formed in a substantially perpendicular direction on the slope, or characterized in that formed in a substantially horizontal or vertical direction or a mixture thereof with respect to the ground.

The breaker is coupled to the length adjustable in the state consisting of a space portion, the front end is characterized in that the cover is formed to be opened and closed.

The cover of the breaker is closed when forming a hole, characterized in that configured to be opened by the pouring pressure of the concrete when pressing the concrete through the space portion.

Description

Slope stabilization method by concrete indentation and its device {METHOD AND DEVICE FOR SLOPE STABILIZE OF USING INJECTION CONCRETE}

The present invention relates to a slope surface stabilization method by concrete indentation and its apparatus, and more particularly to the slope surface by concrete indentation placing made to be more firm and stable construction of the slope or ground by easy and quick work It relates to a stabilization method and a device thereof.

Generally, when constructing civil works such as road construction, railroad construction, industrial complex or housing site construction, the design and construction are carried out in accordance with the surrounding terrain and conditions by building retaining walls or cutting down the ground. It is very likely that the same civil engineering will involve slopes.

In particular, in order to solve the explosive traffic demands due to the economic development and the improvement of the income level, new highways and general roads are newly established and expanded. Also, in the case of industrial complexes, housing site development projects and farmland arranging projects, As the project is almost completed, it gradually expands to forests and mountains in the outskirts of the city. Civil engineering works that are carried out when 67% of the country's soil is composed of mountainous terrain have many slopes.

The slope formed by the fill or cut is important to have a stable structure, and if the slope is not stable, the soil is lost or collapsed due to rainfall or sea ice, which increases the risk of an accident.

Therefore, various methods have been proposed to keep the soil more stable while preventing soil loss or collapse on the slope. As a representative example of the ground reinforcement method, the soil nailing method, which is increasingly used, is known. have.

This soil nailing method is a ground method similar to the conventionally used reinforcement soil method or ground anchor method. After pouring), drill a plurality of holes while maintaining a constant angle of inclination and depth, grouting to insert a cement paste and cement paste of plastic, glass fiber or steel into the drilled hole do.

Then install a wire mesh for the front reinforcement, and if the grout is cured and the nail is supported in the hole, install the pressure plate at the rear end of the nail, tighten it with a nut, and then place the second shotcrete to complete the ground reinforcement work. do.

The cut surface or cut surface formed by the soil nailing method is resistant to friction between soil and nail, tensile stress of nail, shear stress and bending moment, so that the ground can be kept stable by the integration of soil and nailing. do.

In addition, it is easy to cope with the change of soil condition during construction, and the construction method is simple, so it has little noise and vibration, and it is advantageous to the proximity construction and earthquake load in the city, and it is generally compared with other construction methods (reinforced soil method or ground anchor method). Cost of construction is low.

However, the conventional soil nailing method can not expect the effect in the viscous soil with a small friction force, there is a problem that the relative displacement of the soil and the reinforcement is very likely to occur.

And when there is groundwater on the excavation surface there is a problem that can not be shotcrete.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is a slope stabilization method by concrete indentation casting made to be more firm and stable construction of slopes and ground by easy and quick operation and To provide the device.

In order to realize the object of the present invention as described above, forming a hole using a breaker mounted on the excavator on a slope or ground such as a fill slope or cut slope;

Pouring concrete into the hole by pumping concrete into the inner space of the breaker while the breaker enters the hole;

Provided is a slope stabilization method and a device by the concrete indentation comprising a curing step of curing for a predetermined period of time so that the cast concrete has a certain strength.

The hole is formed in a substantially perpendicular direction on the slope, or characterized in that formed in a substantially horizontal or vertical direction or a mixture thereof with respect to the ground.

The breaker is coupled to the length adjustable in the state consisting of a space portion, the front end is characterized in that the cover is formed to be opened and closed.

The cover of the breaker is closed when forming a hole, characterized in that configured to be opened by the pouring pressure of the concrete when pressing the concrete through the space portion.

1 is a schematic side view of an apparatus for constructing a slope slope stabilization method by the concrete indentation in accordance with the present invention.

Figure 2a is an enlarged cross-sectional view of a breaker according to the present invention applied to the device of Figure 1;

FIG. 2B is a cross-sectional view of an exploded state in FIG. 2A; FIG.

Figure 2c is an enlarged bottom view of the tip of the breaker according to the present invention applied to the device of Figure 1;

3 is a side cross-sectional view showing the formation of a hole in the inclined surface using the apparatus of FIG.

Figure 4a and Figure 4b is a side cross-sectional view and plan view showing that the construction of the slope is completed by the slope stabilization method by the concrete indentation in accordance with the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

1 is a side view of an apparatus for constructing a slope surface stabilization method by concrete indentation in accordance with the present invention, Figure 2 is an enlarged cross-sectional view and bottom view showing the breaker applied to the apparatus of Figure 1, the concrete according to the present invention A slope stabilization device by press-fitting includes an excavator 2, a breaker 4 mounted on the excavator 2 to form a hole in a slope or placing concrete in a formed hole, and one side of the breaker 4; The other side is connected to the concrete mixer (6) is connected to the conveying pipe (8) for supplying concrete to the breaker (2), and is installed on the conveying pipe (8) to press the concrete of the concrete mixer (6) to a predetermined pressure It includes a compression pump (10) for feeding to the breaker (4).

The excavator (2) is equipped with a bucket or breaker operated by hydraulic force to break the foundation trench, molded concrete and rock, etc. or to carry it to the vehicle, such an excavator (2) is civil engineering or construction Since a conventionally used in construction can be used, detailed description is omitted.

The breaker 4 of the present invention mounted on such an excavator 2 has a fixed portion 4a, which is formed in a cylindrical shape and is detachably connected to each other in the longitudinal direction, as shown in FIGS. 2A and 2B, and a connection portion 4b. ) And a body 4c and a tip portion 4d.

In the present embodiment, the upper and lower portions of the fixing portion 4a, the connecting portion 4b, the body 4c and the tip portion 4d are each formed with a female screw and a male screw corresponding to each other, so that the breaker 4 is connected by screwing. Although the present invention is not limited thereto, for example, it may be connected by a pin.

And the combined breaker (4) should be made so that the connected part is not loosened even if vibration or strong external force is applied.

The fixing part 4a is a part which is fixed to the excavator 2 and a key groove 12 is formed at one end thereof so that the breaker 4 can be coupled to or separated from the excavator 2.

The connecting portion 4b, the body 4c, and the tip portion 4d are each formed of a space portion 14 so that the inside thereof communicates with each other, and the upper end portion of the connecting portion 4b is formed of a partition wall 15. In the lower one side, the branch pipe 16 formed to communicate with the space 14 is formed integrally, and the outer peripheral surface of the end of the branch pipe 16 is connected to the conveying pipe line 8 and tightened with a clip or the like. The groove 18 is formed so that it can be.

The body 4c is a member for determining the overall length of the breaker 4, and for this purpose, the body 4c is manufactured in various lengths, and according to the structure of the slope and the depth of the hole to be formed in the slope. The body 4c is configured to be used to assemble.

The end of the tip portion 4d connected to the lower end of the body 4c is formed into a conical shape in which the diameter gradually decreases in order to reduce frictional stress with the soil when indenting the slope to form a hole. The cover 20 which is formed so that opening and closing is provided is provided.

The cover 20 is formed of a straight portion so that approximately 1/5 points are supported at the distal end to open and close in a circular state as shown in FIG. 2C, and the pair is fitted into a groove formed in the distal end portion 4d. Protrusions 22 are formed, and pins 24 hinged to the leading end portions 4d through the holes of these protrusions 22 are fitted so that the lid 20 can be opened and closed.

And the pin 24 is provided with an elastic member (not shown) made of a torsion spring, the cover 20 is usually made to close the tip portion 4d by the elasticity of the elastic member, when the concrete is poured The cover 20 is formed to be opened by the placing pressure of the.

In addition, when a pressure sensor capable of detecting the driving pressure of the breaker 4 is installed on the cover 20 as described above, when the hole is formed on the slope, the depth of the hole is automatically detected according to the soil quality of the slope or the strength of the base. Can penetrate while.

As described above, the outer circumferential surfaces of the body 4c and the tip portion 4d constituting the breaker 4 are hexagonal or octagonal in shape so as to easily assemble or detach the breaker 4 using a tool such as a spanner. Tool inserting portions 26 are formed, respectively.

And the packing (28, 30) is provided on the upper outer side of the body (4c) and the front end (4d), respectively, when the breaker 4 is used to assemble, the breaker through the connecting portion (4b) connected to the transfer pipe (8) The concrete supplied to the space 14 of (4) is prevented from leaking out through the connection part.

On the other hand, the conveying conduit 8 provided in the apparatus of the present invention may be used a flexible pressure conduit freely bent without changing the inner diameter, the conveying compression pump for conveying concrete at a predetermined pressure through the conveying conduit 8 10 may use an existing small concrete pump car.

3 and 4 is a view showing the construction of the slope using the slope stabilization device by the concrete indentation of the present invention as described above, first slope formed by the fillet or cut to fit the terrain and conditions around it Hole 34 is formed using an excavator 2 (see Fig. 1) equipped with the breaker 4 of the present invention.

At this time, the breaker 4 is selected to fit the length of the body (4c) so that the hole 34 is formed to an appropriate depth in consideration of the height and angle of the inclined surface 32, Saturn, etc., then assembled to the excavator It is good to attach it to (2) and use it.

When the hole 34 is formed as described above, the hole 34 is formed in such a manner that the breaker 4 forms the slope surface 32, so that the slope surface 32 is compacted and the hole 34 is simultaneously formed. The soil density of the surrounding portion becomes more dense, and the slope 32 becomes firm.

When the hole 34 is formed as described above, concrete should be poured into the hole 34. When the compression pump 10 for transporting concrete is operated, the concrete of the concrete mixer 6 is transferred to the transfer pipe line 8. Is supplied to the breaker (4) through the concrete is conveyed through the space portion 14 formed inside the breaker (4) and at the same time the cover 20 is opened by the pressure of the concrete while the concrete is pressed into the hole 34 Is filled.

The indentation pressure of the concrete is appropriately applied in consideration of the characteristics of the inclined surface 32, such as the Saturn and the angle of the inclined surface 32, but in the early stage, the concrete indentation pressure is strongly applied, and the indentation pressure gradually increases according to the degree of concrete filling Pour concrete into the hole 34 while reducing.

In this manner, the inclined surface 32 may be formed in a manner in which a hole 34 is formed in the inclined surface 32 to a predetermined depth and the concrete is repeatedly filled with an appropriate pressure in the hole 34. The spacing of the holes may be formed at appropriate intervals in accordance with the condition of the slope 32, and the angle of the hole 34 may be formed at a substantially perpendicular direction on the slope 32 as shown in FIG. 3A, or with respect to the ground as shown in FIG. 3B. It may be formed in a substantially horizontal direction or perpendicular to the ground as in Figure 3c, it may be formed by mixing the above.

In the case of the fill slope during this operation, starting from one direction from the lower end to the upper end of the slope 32 may proceed sequentially in the other direction.

In the region where the ready-mixed concrete can be easily carried out, the concrete mixer 6 may be omitted, and the concrete may be poured directly using the ready-mixed concrete, or the concrete may be poured after reinforcing the rebar in the hole 34.

After pouring concrete into the hole 34 formed in the slope 32 through the above-described process, if the concrete is cured for a predetermined period to have a certain strength, the slope surface construction is completed as shown in FIG. 4, FIG. 4A. As cured concrete 36 acts as a reinforcing material to increase the shear and tensile strength of the ground to suppress displacement and to prevent the ground loosening, the slope is firm and the state is maintained stably.

In the above, the method of the present invention has been described as being constructed on a slope, but is not limited thereto, and may be applied to general soil (soil) soil that requires reinforcement of the ground.

As described above, the slope slope stabilization method and the device by the concrete indentation according to the present invention, because the slope is constructed by using an existing excavator, the construction proceeds quickly and easily, the construction cost is reduced, and the concrete according to the characteristics of the construction site Indentation depth, angle, placement spacing, etc. can be adjusted appropriately, reinforcing bars can be stabilized embankment slope or cut slope of any condition.

In addition, the hole is formed by the breaker type of the slope, so that the slope is compacted and the soil density of the periphery of the hole becomes more dense, resulting in a stronger base, and the concrete being pressed into the hole at a constant pressure. Seeps into the soil around the hole and stabilizes it.

And even when the surrounding water is introduced during the formation of the hole, when the concrete is press-fitted, the water is quickly discharged out of the hole to stabilize the slope.

Claims (10)

Forming holes using a breaker mounted on an excavator on a slope or ground such as a fill slope or a cut slope; Pouring concrete into the hole by pumping concrete into the inner space of the breaker while the breaker enters the hole; Slope surface stabilization method by the concrete indentation comprising a curing step of curing for a predetermined period so that the poured concrete has a certain strength. The method of claim 1, wherein the hole is formed in a direction perpendicular to the inclined surface, or inclined surface stabilization method by concrete indentation placing, characterized in that formed in a substantially horizontal or vertical direction or a mixture thereof with respect to the ground. An excavator, a breaker mounted on the excavator to form a hole in a slope or ground, or to cast concrete in the formed hole, and one side of which is connected to the breaker, and the other side of which is connected to a concrete mixer, and a transfer pipe for supplying concrete to the breaker; And Slope stabilization device by the concrete indentation including a compression pump for transporting is installed on the conveying pipe to supply the concrete of the concrete mixer to the breaker at a predetermined pressure. The stabilizer of claim 3, wherein the breaker is hollow so as to press-fit concrete. 4. The breaker of claim 3, wherein the breaker includes a fixing part which is detachably connected to each other in the longitudinal direction, and a connecting part, a body and a tip part, and the connecting part, the inside of the body and the tip part, are formed as a space part to communicate with each other. Slope stabilizer by concrete press-fitting. The inclined surface stabilization device of claim 5, wherein the connection part is formed of a partition wall at an upper part thereof, and a branch pipe formed to communicate with the space part is integrally formed at one side thereof. The inclined surface stabilization device of claim 5, wherein the body is made of various lengths to adjust the overall length of the breaker. The method of claim 5, wherein the end portion of the tip portion is formed in a conical shape that gradually decreases in diameter in order to reduce the frictional stress with the earth and sand when pressing the inclined surface to form a hole, the end portion is provided with a cover formed to open and close Slope stabilizer by the concrete press-fitting, characterized in that. The method according to claim 8, wherein the cover is hinged to the body through a pin, the pin is provided with an elastic member made of a torsion spring, the elastic member of the cover is usually made to close the tip end, the concrete can be poured When the slope is stabilized by concrete indentation, characterized in that formed to be opened by the pouring pressure of the concrete. The slope of claim 8, wherein the cover further detects the driving pressure of the breaker to automatically penetrate while detecting the depth of the hole according to the soil quality of the slope or the ground. Stabilizer.