KR101380600B1 - Method for automatic penetrating and drawing of dynamic cone for ground investigation - Google Patents

Abstract

Disclosed is a method for automatic penetrating and drawing of a dynamic cone for ground investigation using a dynamic cone automatic penetrating apparatus and a dynamic cone automatic drawing apparatus. The method for automatic penetrating and drawing of a dynamic cone for ground investigation comprises a dynamic cone automatic penetrating step and a dynamic cone automatic drawing step. The dynamic cone automatic penetrating step comprises a first step of inserting a dynamic cone into a dynamic cone inserting unit; a second step of raising a cylinder body; a third step of stopping air injection and lowering the cylinder body; and a fourth step of penetrating the dynamic cone into the ground. The dynamic cone automatic drawing step comprises a fifth step of coupling the dynamic cone automatic drawing apparatus with the dynamic cone; a sixth step of raising the dynamic cone which is coupled to a ram body; and a seventh step of lowering the ram body. [Reference numerals] (AA) Start; (BB) End; (S10) Automatic penetrating of a dynamic cone; (S20) Automatic drawing of the dynamic cone

Description

Method for Automatic Penetration and Automatic Drawing of Geotechnical Cone for Geotechnical Investigation

The present invention relates to a method of automatic penetration and automatic drawing of a dynamic cone used for ground survey, and more particularly, to automatically carry out a dynamic cone for ground survey using an automatic penetration device and an automatic drawing device for dynamic cone penetration test, which are easy to carry. It is about intrusive and also automatically draw.

In general, the Dynamic Cone Penetration Test is to be used for soil investigation of soil, sand, gravel, etc., and penetrates into the ground by hitting a rod having a cone on the tip by freely dropping a hammer of prescribed weight. It is a test that calculates the measured value of the ground resistance with the penetration amount by the number of hits from the constant weight and the drop height required to penetrate the constant depth or the constant number of hits from the constant weight and the drop height. .

This dynamic cone penetration test is carried out to determine the rough soil properties between the boring ball and the ball, to determine the dynamic stress in the ground and to measure the shear strength at the original location.

Through this, by measuring the penetration resistance of the soil in the original position, it is used to determine the relative soil firmness, compaction degree, the composition of the soil layer, it can also estimate the value in the sand or gravel.

However, most of the conventional dynamic cone penetration tester is a manual type, and the tester adopts a method of dropping the hammer up to the target height and dropping it freely, and the weight of the hammer is different according to the purpose of the test. The heavier the tester is, the more difficult the tester is, and the drop height of the hammer can not be repeatedly performed at the correct position.

On the other hand, in the case of injecting a dynamic cone into the ground of soil, sand, gravel, etc., in some cases it may be necessary to penetrate to a depth of 10 to 20 m. In this case, when the dynamic cone penetration test is finished, the dynamic cone penetrated into the ground has to be drawn out, that is, pulled out, but there has been only a manual process. In particular, in the past, the drawing machine of the method using the lever principle was used in the past.

However, the conventional drawer using the lever principle, there is a problem that the drawer does not receive enough repulsive force due to the weak ground when the ground is sand or clay, it does not properly perform the drawing of the dynamic cone intruded into the ground.

In addition, when the dynamic cone is drawn out, the rod cannot be accurately drawn in the vertical direction, and thus, the rod part is bent and damaged during the drawing of the dynamic cone, so that there is a problem that it must be replaced.

On the other hand, the patent document disclosed in the prior art documents, each of which is formed in a constant length, both ends of the female thread and male thread formed respectively, the signal cable is sewn, the rods are wound and housed in the winding drum, the connection state is freely bent, An accommodating part installed in the frame such that the rods wound on the winding drum are continuously discharged / inflowed only at the same position in sequence; Elastically supported in a direction facing each other by elastic support means to selectively revolve the coupling / separation rollers for urging the rods on both sides and the coupling / separation rollers for urging the rods in a forward / reverse direction. A rod coupling / separation unit including a coupling / separation actuator for coupling and coupling the rods to each other when injecting, and releasing and disconnecting the rods during recovery; The pressing member and the pressing member installed on the track frame located directly below or below the rod coupling / separation part are configured to continuously move upward or downward while pressing both outer peripheral surfaces of the rods coupled and coupled to each other. Disclosed is a configuration of a ground survey cone penetration device including a rod penetration / recovery unit having a penetration / recovery actuator for reverse rotation, and a method of automatically intruding a dynamic survey cone for a ground survey. Not.

In addition, a method for automatically drawing a ground cone dynamic cone has not been proposed yet.

Republic of Korea Patent Publication No. 10-0613131 (August 17, 2006.) (Name of the invention: "cone penetration device for ground investigation")

The present invention has been made to solve the problems of the prior art as described above, the automatic intrusion device and ground penetration of the dynamic cone for ground investigation to repeatedly drop the weight of a certain load at a certain height using air pressure It is an object of the present invention to provide a method of automatically injecting dynamic cones for ground survey suitable for an automatic drawing device of dynamic cones and an automatic drawing method of dynamic cones embedded in ground.

It is another object of the present invention to provide an automatic penetration and automatic drawing method of a ground cone dynamic cone that can be automatically performed so as to reduce the manpower consumption when compared to the case of performing purely intrusive and drawn out of the dynamic cone. It is.

In still another object of the present invention, in the automatic drawing device of the dynamic cone for ground irradiation, the method and automatic grounding of the dynamic cone for ground irradiation, which can avoid the bending of the dynamic cone and the like when the dynamic cone is drawn out. It is to provide an automatic drawing method of intrusive dynamic cone.

The problem to be solved by the present invention is not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by a person skilled in the art from the following description.

In order to solve the above problems, according to a preferred embodiment of the present invention, the automatic penetration and automatic drawing method of the dynamic cone for ground irradiation according to a preferred embodiment of the present invention, dynamic cone automatic penetration device and dynamic cone automatic drawing device An automatic penetration and automatic drawing method of a ground cone dynamic cone using, comprising: a dynamic cone automatic penetration step and a dynamic cone automatic drawing step; The dynamic cone automatic penetration step may include: (a) inserting a dynamic cone to be inserted into the ground into a dynamic cone insertion portion formed at a lower end of the dynamic cone automatic penetration device; (B) Injecting air through an air inlet formed in the lower portion of the piston rod of the dynamic cone automatic injection device comprising a cylinder body for vertical movement and a piston rod formed in the cylinder body for vertical movement of the cylinder body. Raising the cylinder body by flowing air through an air flow hole in the piston rod; (C) When the cylinder body reaches the maximum lift position, the injection of air through the air inlet is stopped, and the air is discharged to the outside of the cylinder body through the air discharge hole formed in the lower portion of the cylinder body. Lowering the main body; And (d) injecting the dynamic cone into the ground by hitting the striking portion formed at the lower end of the piston rod by the cylinder body being lowered, wherein the dynamic cone automatic drawing step includes: Fastening the dynamic cone automatic drawing device to the dynamic cone; (F) injecting air through an air injection portion formed in the lower portion of the dynamic cone automatic drawing device, combining the ram body formed inside the dynamic cone automatic drawing device and the dynamic cone, and raising the dynamic cone combined with the ram body; Making a step; And (g) automatically disengaging the coupling with the dynamic cone when the ram body reaches the maximum lift position to lower the ram body.

Here, between the dynamic cone automatic penetration step and the dynamic cone automatic drawing step, it is preferable to further include the step of exchanging the dynamic cone automatic penetration device and the dynamic cone automatic drawing device.

In addition, the detection of the arrival of the maximum lift position of the cylinder body in the step (c) can be detected while the air is discharged to the outside of the cylinder body through the air discharge hole formed in the lower portion of the cylinder body, In step (g), the detection of the arrival of the maximum lift position of the ram body may be sensed by a controller that controls the injection of compressed air for raising the ram body.

In addition, the dynamic cone automatic penetration step and the dynamic cone automatic drawing step is preferably performed by an air compressor capable of providing compressed air.

Further, in the dynamic cone automatic penetration step, steps (b) to (d) are repeated until the penetration depth of the dynamic cone reaches a predetermined depth, and in the dynamic cone automatic drawing step, the dynamic cone is completely It is more preferable to repeat the steps (bar) and (g) until drawing.

The details of other embodiments are included in the detailed description and the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention and the manner of achieving them will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, it is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein, Are provided to fully disclose the scope of the present invention, and the present invention is only defined by the scope of the claims.

It is to be understood that the same reference numerals refer to the same components throughout the specification and that the size, position, coupling relationship, etc. of each component constituting the invention may be exaggerated for clarity of description. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

According to a preferred embodiment of the present invention, in the automatic penetration method of the ground irradiation dynamic cone for repeatedly dropping the weight of a certain load at a certain height by using the air pressure and in the automatic drawing method of the dynamic cone inserted into the ground, Consumption can be significantly reduced.

In addition, according to a preferred embodiment of the present invention, it is possible to smoothly continuously perform the automatic penetration and automatic drawing of the ground cone dynamic cone, it is possible to significantly reduce the time required for ground survey work.

In addition, according to a preferred embodiment of the present invention, it is possible to effectively prevent the bending of the dynamic cone and the like during the automatic drawing of the automatically inserted dynamic cone, it is possible to significantly reduce the need to have a preliminary dynamic cone.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an explanatory view for explaining the automatic insertion and automatic drawing method of the dynamic cone for ground surveying according to a preferred embodiment of the present invention, and an explanatory diagram (1) of a dynamic cone automatic penetration device.
FIG. 2 is an explanatory diagram for explaining the automatic penetration and automatic drawing method of the ground cone dynamic cone according to the preferred embodiment of the present invention, and an explanatory diagram (2) of the dynamic cone automatic penetration device.
3 is an explanatory view for explaining the automatic penetration and automatic drawing method of the ground cone dynamic cone according to a preferred embodiment of the present invention, an explanatory diagram (3) of the dynamic cone automatic penetration device.
4 is an explanatory view for explaining the automatic penetration and automatic drawing method of the ground cone dynamic cone according to the preferred embodiment of the present invention, an explanatory diagram (4) of the dynamic cone automatic penetration device.
5 is a schematic cross-sectional view of a dynamic cone automatic drawing device as a preparation diagram for explaining the automatic insertion and automatic drawing method of the dynamic cone for ground surveying according to a preferred embodiment of the present invention.
6 is an explanatory diagram (1) of a dynamic cone automatic drawing device as a preparation diagram for explaining the automatic insertion and automatic drawing method of the ground dynamic survey cone according to a preferred embodiment of the present invention.
FIG. 7 is an explanatory diagram (2) of the dynamic cone automatic drawing device as a preparation diagram for explaining the automatic insertion and automatic drawing method of the ground dynamic survey cone according to a preferred embodiment of the present invention.
8 is a flow chart (1) for explaining the automatic penetration and automatic drawing method of a ground survey dynamic cone according to a preferred embodiment of the present invention, illustrating the entire method in two steps.
Fig. 9 is a flow chart (2) for explaining the automatic penetration and automatic drawing method of the ground survey dynamic cone according to the preferred embodiment of the present invention, illustrating the automatic penetration step of the dynamic cone.
FIG. 10 is a flow chart (3) for explaining the automatic penetration and automatic drawing method of the ground survey dynamic cone according to the preferred embodiment of the present invention, illustrating the automatic drawing step of the dynamic cone.

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

First, with reference to the drawings of Figures 1 to 7 will be described briefly with respect to the automatic penetration device and automatic drawing device of the ground cone dynamic cone.

1 is a drawing for explaining the automatic insertion and automatic drawing method of the ground dynamic survey cone according to a preferred embodiment of the present invention, explanatory drawing (1), Figure 2 is a dynamic cone automatic insertion device of the present invention As a preparation drawing for explaining the automatic penetration and automatic drawing method of the dynamic cone for the ground survey according to a preferred embodiment, the explanatory drawing (2), Figure 3 of the dynamic cone automatic penetration device according to a preferred embodiment of the present invention As a preparation drawing for explaining the automatic insertion and automatic drawing method of the dynamic cone for irradiation, the explanatory drawing (3) of the dynamic cone automatic insertion device, and FIG. 4 shows the dynamic cone for ground irradiation according to the preferred embodiment of the present invention. It is an explanatory drawing (4) of the dynamic cone automatic penetration device as a preparation drawing for demonstrating the automatic penetration and automatic drawing method.

The dynamic cone automatic penetration apparatus shown in FIGS. 1-4 is a dynamic cone penetration apparatus for injecting the dynamic cone 2 which has the tip part 4 into the ground 1, and examining various physical characteristics of the ground.

The dynamic cone auto-injection device includes a hitting part 100 having a piston rod 140 extending vertically and serving as a hitting body, and vertically moving by the piston rod 140. At the same time, it includes a configuration of the cylinder body 200 as a striking body that serves as a striking body.

In this case, the dynamic cone 2 may be inserted into the dynamic cone inserting portion 10 formed under the adapter holder 6 inserted into the lower end of the hit part 100.

In addition, a handle 8 may be further formed so that an operator performing an automatic penetration test can easily grip and maintain the adapter holder 6.

The adapter holder 6 maintains the engagement of the dynamic cone 2 and the hit part 100 such that the dynamic cone 2 is hit when the dynamic cone 2 is automatically inserted. It is a structure so that it may not be detached from the part 100.

To this end, the inner surface of the dynamic cone insert 10 of the adapter holder 6 may be a circular cross section or a hexagonal cross section, more specifically, the cylinder body 200 to facilitate the penetration of the dynamic cone (2) In order to prevent the movement of the dynamic cone (2) during the vertical movement of the), it is preferable that a screw is formed inside.

In this case, it is preferable that a corresponding thread (not shown) is also formed at the uppermost end of the dynamic cone 2.

An air injection hole 160 for injecting air for raising the cylinder body 200 may be further formed at a lower end of the hit part 100.

Preferably, the air inlet 160 may further include an air compressor (not shown) capable of injecting high pressure air and a controller (not shown) for controlling the same.

In addition, it is preferable that the tapered surface 120 is formed on the transition surface of the piston rod 140 from the upper surface of the hit part 100.

The tapered surface 120 is formed between the diameter of the hit part 100 and the diameter of the piston rod 140, and the shape decreases toward the piston rod 140 from the hit part 100. This is preferred.

At this time, the inclination of the tapered surface 120 is sufficient to be set to be the same as the corresponding tapered surface 225 (see Fig. 2) to be described later.

The appropriate slope may vary depending on the nature of the investigation ground.

For example, the slope can be set low for solid ground such as ground, and the slope can be set high for soft ground such as sand. It will be appreciated that it can be set differently.

Since the hit part 100 may be damaged by repeated hitting when the dynamic cone is automatically inserted, the inserting part or the screwing part may be further configured so as to be separated and fastened relatively easily from the piston rod 140. desirable.

On the other hand, the cylinder body 200 is an air discharge hole 210 formed at the lower end of the cylinder body 200, and the piston rod 140 extending from the hitting portion 100 is inserted into the hitting portion Lower cap 220 as a striking body striking the 100, and through the air flow path 150 corresponding to the lower cap 220 and intermittently opened and formed on the inner side of the piston rod 140 to the upper It includes a configuration of the upper cap 230 that can discharge the air flowing.

At this time, the lower cap 220 may serve to hit the tapered surface 120 of the upper side of the hitting portion 100 described above.

For this purpose, it is preferable that the lower cap 220 has a corresponding tapered surface 225 corresponding to the tapered surface 120.

As described above, the inclination of the tapered surface 120 and the inclination of the corresponding tapered surface 225 are more preferably formed to coincide with each other.

At the same time, the lower cap 220 may be fastened by fitting or screwing such that the lower cap 220 can be easily fastened and detached from the cylinder body 200.

In addition, in this case, since the lower cap 220 operates as a striking body, the lower cap 220 may be additionally fixed by a screw (not shown) or the like that can more firmly fix the lower cap 220 to withstand the impact. It may be.

The high pressure air injected through the air injection port 160 flows through the air flow path 150 formed inside the piston rod 140, and the piston rod cap formed at one end of the piston rod 140. It flows out through the air outlet hole 185 in the 180, the cylinder body 200 can be raised by the air pressure at this time (see Fig. 3).

That is, it should be noted that the cylinder body 200 rises upward by the air pressure.

In this case, the piston rod cap 180 is preferably fixed to the upper end of the piston rod 140.

More preferably, the piston rod cap 180 may be fixed to the upper end of the piston rod 140 by a screw method in order to be replaceable in consideration of frequent collision with the air plug 240 to be described later. .

The piston rod cap 180 may further include a protrusion having a shape corresponding to a recess formed in the air plug 240 formed at the uppermost end of the cylinder body 200.

Protrusions of the piston rod cap 180 and recesses formed in the air plug 240 are stably engaged with each other during repeated raising and lowering of the cylinder body 200, and the air in the cylinder body 200. The opening and closing of the air outlet 235 (see FIG. 2) described later can be controlled.

The piston rod cap 180 may serve to positively suppress left and right swing of the cylinder body 200 when the cylinder body 200 moves up and down surrounding the piston rod 140.

An air plug 240 may be installed at an uppermost end of the inside of the cylinder body 200, and an outer surface of the air plug 240 may be used to mitigate an impact occurring when the cylinder body 200 descends after the cylinder body 200 is raised. The configuration of the elastic member 250 may be further included. Although the spring is most preferable as the elastic member 250, other elastic members may be used as long as it can impart other elasticity.

In particular, the air plug 240 and the elastic member 250 is preferably operated cooperatively, for example, when changing to the state of Figure 3 to Figure 4, the lower striking portion of the lower cylinder body 200 When the lower cap 220 as the hitting the tapered surface 120 may serve to discharge the air in the cylinder body 200 to the outside.

Here, the air plug 240 is most preferably formed of brass in consideration of the considerable frictional force in the cylinder body 200 and the non-lubrication situation in the field.

However, the air plug 240 in the present invention is not limited to any material as long as the material can withstand the vertical movement in the cylinder body 200 is repeated.

Like the piston rod cap 180, the air plug 240 is also preferably formed to be easily detachable on the upper end side of the cylinder body 200.

In addition, the air plug 240 is preferably provided with a predetermined gap between the cylinder body 200 to facilitate the up and down of the cylinder body 200.

At this time, if the gap is enough to flow through the air flow through the air flow path 150 formed in the piston rod 140 through the air plug 240, and not leak through the gap. Suffice.

In more detail, the gap is preferably formed as a gap of 1/100 to 1/50 as compared with the inner diameter of the cylinder body 200.

In addition, it is preferable that a plurality of air discharge holes 210 formed at the lower end of the cylinder body 200 are formed around the cylinder body 200 at equal intervals, which is the inside of the cylinder body 200. It is possible to discharge the air evenly to the outside, whereby the cylinder body 200 can be prevented from biasing in either direction.

At this time, the plurality of air discharge holes 210 formed at the lower end of the cylinder body 200 has a total cross-sectional area twice that of the cross-sectional area of the air flow path 150 formed inside the piston rod 140. More preferably, it is formed to have a size of ˜8 times.

In addition, the air outlet 235 formed on the upper cap 230 is formed to have a cross-sectional area of 4 to 20 times the cross-sectional area of the air flow path 150 formed on the inner side of the piston rod 140. It is preferable to.

In addition, in view of the above, it may be formed as a single single opening on the upper side of the cylinder body 100, otherwise a plurality of outer surface of the upper cap 230 in addition to the air outlet 235 shown. May also form an opening (not shown).

As described above, the reason for limiting numerical values for the air discharge hole 210 and the air discharge port 235 is that the cylinder body 200 having a constant load, which may correspond to the configuration of the weight of the prescribed weight described above. In consideration of the usefulness and efficiency in the repeated drop test that raises and lowers again to a certain height by using the air pressure, if it is out of the numerical range, the repetitive raising and lowering of the cylinder body 200 is performed smoothly. Not only that, there is a possibility that the lifting period of the cylinder body 200 is lowered and the penetration efficiency of the dynamic cone 2 due to the strike is very low.

On the other hand, it is preferable that the air inlet 160 and the air flow path 150 formed inside the piston rod 140 formed inside the piston rod 140 communicate with each other.

In addition, the air plug 240 is preferably fixedly located inside the cylinder body 200.

To this end, it is preferable that the air plug 240 is regulated so as not to fall by a configuration such as a protrusion (not shown) protruding from the inner surface of the cylinder body 200.

At the same time, the air plug 240 is lowered by its own weight at the time of initial installation of the automatic piercing device for the ground irradiation dynamic cone or when the air charged in the cylinder body 200 is discharged to the outside, and thus the cylinder body The air outlet 235 positioned on the upper side of the 200 may be opened.

Further, by forming a groove on the lower surface side of the air plug 240, it may be to be easily coupled to the upper surface side of the piston rod cap 180 (see Fig. 4).

In this case, the elastic member 250 is to provide a degree of elasticity to the operation of the air plug 240, the air of the air that the air plug 240 flows through the air flow path 150 Pressure is prevented from being coupled to the air outlet 235 of the upper cap 230 to facilitate separation of the air outlet 235 and the air plug 240, the lifting and lowering of the air plug 240 Since the air outlet 235 can be smoothly opened and closed by assisting the operation, the rise and fall of the cylinder body 200 can be more accurately and quickly.

A detailed operation of the automatic penetration device for the ground survey dynamic cone described above will be described in more detail in the automatic penetration and automatic drawing method of the ground survey dynamic cone described below with reference to FIGS. 8 to 10.

On the other hand, Figure 5 is a preliminary view for explaining the automatic insertion and automatic drawing method of the ground dynamic survey cone according to a preferred embodiment of the present invention, a schematic cross-sectional view of the dynamic cone automatic drawing device, Figure 6 is a preferred embodiment of the present invention As a preparation drawing for explaining the automatic insertion and automatic drawing method of the dynamic cone for the ground survey according to the embodiment, an explanatory drawing (1) of the dynamic cone automatic drawing device, and Figure 7 is a ground according to a preferred embodiment of the present invention It is an explanatory drawing (2) of a dynamic cone automatic drawing apparatus as a preparation drawing for demonstrating the automatic insertion and automatic drawing method of an irradiation dynamic cone.

5 to 7, the dynamic cone automatic drawing device 400 is used for the dynamic cone penetration test for the soil survey to vertically move the dynamic cone 2 in the state infiltrated into the ground 1 using air pressure. It is a device for auto drawing.

At this time, it should be noted that the automatic drawing method according to the present invention can apply sufficient pulling force even when the ground is sand or clay.

This is because, unlike the local force applied to one side of the ground in the conventional lever method, the central portion of the dynamic cone 2 can be gripped as a whole and drawn in the vertical direction.

The dynamic cone automatic drawing device 400, as shown in the figure, is composed of a housing 410 of a circular shape as a whole.

The housing 410 is composed of a top plate and a bottom plate 480, the housing 410 is preferably formed of a suitable material and thickness of a level capable of withstanding repeated air pressure.

In particular, an elastic member (not shown) is formed on the inner upper side and the inner lower side of the housing 410 to prevent damage to the housing 410 due to repeated raising and lowering of the ram body 460 to be described later. It is more preferable if it is done.

In the drawing, the air inlet 405 is preferably formed on the upper side of the lower plate 480 of the housing 410, the same air compressor as the air inlet 160 in Figs. 1 to 4 (not shown) ) And a controller (not shown) for controlling the same may be further added.

The reason for forming the air inlet 405 above the lower plate 480 of the housing 410 is that the air inlet 405 is when the dynamic cone automatic drawing device 400 falls to the ground. It should be noted that this is to actively avoid the damage of the air supply hose and the like that are fastened to the

In the housing 410 of the dynamic cone automatic drawing device 400, an opening may be formed in the center portion of the bottom plate 480 to insert the dynamic cone 2 inserted into the ground 1. .

At this time, the opening is preferably an opening corresponding to the diameter of the dynamic cone (2).

At the same time, it is preferable to further include a ram body 460 for gripping and raising the holding portion 2a of the dynamic cone 2.

The lower portion of the ram body 460 is preferably flat as in the lower plate 480, but an upper delta recess is formed on the upper portion of the ram body 460, and the recess corresponds to the reverse delta shape and the dynamic It is preferable that a grip holder portion 430 is further disposed to hold and hold the cone 2.

The grip holder 430 is preferably configured to engage and engage the dynamic cone 2 when the ram body 460 rises while high pressure compressed air is supplied through the air inlet 405. .

In addition, the ram body 460 is preferably fixedly located inside the housing 410.

To this end, the ram body 460 may be formed by a protrusion (not shown) protruding from the inner surface of the housing 410 or by forming the ram body 460 slightly larger than the diameter of the housing 410. It is desirable to be regulated so that it does not fall.

In addition, when the ram body 460 rises, the housing cover 420 forming the upper portion of the housing 410 may rise together with the ram body 460 (see FIG. 7).

As shown in FIG. 7, it can be seen that the grip holder portion 430 in the rising ram body 460 firmly grips the holding portion 2a of the dynamic cone 2.

That is, FIG. 6 should be understood that before the dynamic cone 2 is raised, and FIG. 7 is a diagram showing after the dynamic cone 2 is raised.

Here, the grip holder 430 may be formed by separating two or more pieces.

In this way, the dynamic cone 2 is able to rise with the rise of the ram body 460 in engagement with the grip holder portion 430, and if such an operation is repeated, the dynamic cone 2 I can draw it.

In this case, it is preferable that the elastic member 440 is further installed in order to effectively suppress excessive rise of the ram body 460 so that the ram body 460 does not strike the inner upper surface of the housing 410.

The elastic member 440 is most preferably formed of a spring, it should be understood that other materials or materials are possible as long as it can impart other elasticity and absorb the impact of the ram body 460.

5 to 7, the dynamic cone 2 is preferably configured to penetrate the center of the automatic drawing device 400 of the ground irradiation dynamic cone.

At the same time, the inner surface of the grip holder portion 430 may be roughly processed so as to grip the holding portion 2a of the dynamic cone 2 more firmly, and it is more preferable if other unevenness is formed. .

5 to 7, the automatic lifting device 400 of the ground survey dynamic cone, unlike the automatic penetration device of the ground survey dynamic cone shown in Figures 1 to 4, the worker grips the carrying device 400 In the case of continuous operation, the vertical discharging of the dynamic cone 2 may be hindered, so that, for example, an auxiliary work bench such as a tripod is installed, and then the automatic work-out device of the ground survey dynamic cone is installed on the auxiliary work bench. It is preferable to keep the 400 fixed.

Similarly, in the case of the automatic penetration device for the ground survey dynamic cone shown in Figs. 1 to 4, it is also possible to install an auxiliary work bench so that the work can be automatically carried out so that the dynamic cone can be automatically inserted.

Finally, an automatic penetration and automatic drawing method of the ground irradiation dynamic cone according to a preferred embodiment of the present invention will be described.

The present invention has a basic configuration of continuously using the above-described ground survey dynamic cone automatic penetration device and dynamic cone automatic drawing device, and according to the present invention with reference to the drawings of FIGS. The automatic penetration and automatic drawing method of the ground cone dynamic cone for inspection will be described with reference to FIGS. 8 to 10.

8 is a flow chart (1) for explaining the automatic penetration and automatic drawing method of the ground survey dynamic cone according to a preferred embodiment of the present invention, a flow chart illustrating the entire method in two steps, Figure 9 is a preferred embodiment of the present invention As a flowchart (2) for explaining an automatic penetration and automatic drawing method of a ground cone dynamic cone according to an embodiment, a flowchart illustrating an automatic penetration step of a dynamic cone, and FIG. 10 is a ground according to a preferred embodiment of the present invention. As a flowchart (3) for explaining the automatic insertion and automatic drawing method of the dynamic cone for irradiation, it is a flowchart explaining the automatic drawing step of the dynamic cone.

The automatic penetration and automatic drawing method of the ground cone dynamic cone according to the preferred embodiment of the present invention can be roughly divided into the dynamic cone automatic penetration step (S10) and the dynamic cone automatic drawing step (S20).

At this time, after the dynamic cone automatic penetration step (S10) is finished, before the automatic cone automatic drawing step (S20) before proceeding to remove the automatic penetration device of the ground investigation dynamic cone, automatic drawing of the ground dynamic survey cone The step of installing the device may be further included.

First, the dynamic cone automatic penetration step (S10) will be described.

The dynamic cone automatic penetration step (S10), the step of inserting the dynamic cone into the dynamic cone automatic insertion device (S11), the step of raising the cylinder body by injecting air through the air injection unit (S12), and the cylinder raised to the maximum height Forcibly lowering the main body, it may include a step (S13) of injecting the dynamic cone into the ground by hitting.

In addition, if the dynamic cone 2 has not penetrated to a predetermined depth, the process returns to step S12 to allow the dynamic cone 2 to penetrate to the predetermined depth.

Inserting a dynamic cone into the dynamic cone automatic insertion device (S11)

In this step S11, it is a step of inserting the dynamic cone 2 to be inserted into the ground 1 into the dynamic cone 2 insertion portion 10 of the automatic penetration device of the ground irradiation dynamic cone (see Fig. 1). .

At this time, when the penetration depth of the dynamic cone 2 is deep, the upper and lower ends of the dynamic cone 2 for easy connection with other dynamic cones 2 so that the dynamic cones 2 can be continuously connected as necessary. Screw couplings may be formed.

As described above, the operator can insert the dynamic cone 2 into the dynamic cone 2 insertion portion 10 while holding the handle 8 of the adapter holder 6.

In the above, the initial setting step of FIG. 1 and FIG. 2 was demonstrated. At this time, it should be noted that Figure 2 is just before the automatic intrusion of the dynamic cone.

Injecting air through the air injection unit to raise the cylinder body (S12)

In the step S12, the air compressor is driven through the above-described control unit, and the high pressure compressed air generated by the air compressor is injected into the air injection port 160 of the automatic penetration device of the ground irradiation dynamic cone. It is a step of raising the cylinder main body 200 (refer FIG. 3).

At this time, the high pressure compressed air is an air outlet hole formed inside the piston rod cap 180 coupled to the upper side of the cylinder body 200 through the air flow path 150 in communication with the air inlet 160 ( It flows out into the cylinder body 200 through 185.

The cylinder body 200 is raised by the pressure of the high pressure air at this time.

Forcibly lowering the cylinder body that has risen to the maximum height, and injecting the dynamic cone into the ground by the impact (S13)

In the step S13, the cylinder body 200, which has risen to the maximum height in the step S12, is forcibly lowered, and at this time, the lower cap 220 as the striking body of the cylinder body 200 is the hit part 100. Hitting the tapered surface 120, thereby allowing the dynamic cone 2 to penetrate into the ground 2 (see FIG. 4).

Here, when the cylinder body 200 is forcedly lowered by the inflow of the high pressure compressed air, when the cylinder body 200 rises to the maximum height, an air discharge hole formed at the lower end of the cylinder body 200. The air pressure is released through the 210, whereby the elastic means 250 pushes the air plug 240 downwards, so that the air outlet 235 is fully opened to open the cylinder body 200. Compressed air is discharged, and at this time, the cylinder main body 200 formed with a predetermined weight falls downward due to its own weight, and as described above, the corresponding tapered surface 225 of the lower end cap 220 as the striking portion. ) Strikes the tapered surface 120 of the hit part 100.

By such a strike, the dynamic cone 2 can be introduced into the ground 1.

On the other hand, detection of the maximum rising height of the cylinder body 200 may be possible by the sensor means (not shown).

As the sensor means, the sensor means for measuring the pressure of the high-pressure compressed air flowing into the cylinder body 200 to detect when the maximum pressure, or the rising height of the cylinder body 200 can be measured in real time Sensor means such as ultrasonic distance sensors are possible.

In short, the sensor means may be any means capable of easily detecting the maximum rising height of the cylinder body 200.

Next, the dynamic cone automatic drawing step S20 will be described.

The dynamic cone automatic drawing step (S20), the step of fastening the dynamic cone and the dynamic cone automatic drawing device (S21), the step of injecting air through the air injection unit ram body coupled with the dynamic cone to raise the dynamic cone (S22), and when the ram body rises to the maximum height, it may include a step of lowering the ram body by releasing the engagement with the dynamic cone (S23).

In addition, if the inserted dynamic cone 2 has not been completely drawn out, it may be returned to step S22 to allow the dynamic cone 2 to be drawn out completely.

Step of fastening the inserted dynamic cone and dynamic cone automatic drawing device (S21)

In this step S21, as mentioned above, the upper end of the dynamic cone 2 penetrated deep into the ground 1 and the dynamic cone automatic drawing device 400 are fastened (refer FIG. 5).

As described above, the dynamic cone 2 includes a through hole formed in the bottom plate 480 of the housing 410 of the dynamic cone automatic drawing device 400, a through hole in the ram body 460, and a grip holder part 430. It is preferable to be inserted through the through hole and through hole of the housing cover 420.

At this time, the fastening of the dynamic cone 2 is preferably fastened to the intermediate fitting level.

This is because the grip holder portion 430 in the ram body 460 is responsible for the actual fastening and engagement of the dynamic cone 2. As described above, the inner surface of the grip holder portion 430 may be formed with a rough working or irregularities so as to more firmly grip the holding portion (2a) of the dynamic cone (2).

Injecting air through the air injection unit to combine the ram body with the dynamic cone to raise the dynamic cone (S22)

In this step S22, after the dynamic cone 2 and the dynamic cone automatic drawing device 400 are engaged, the air compressor is driven in a manner similar to that in step S12 described above, thereby generating high pressure. Compressed air is injected into the air inlet 405, thereby raising the ram body 460 (see FIG. 7).

At this time, the high-pressure compressed air flows into the air inlet 405 to push up the entire lower surface of the ram body 460 upward.

When the ram body 460 is pushed upward by the high pressure compressed air, as shown in FIG. 7, the grip holder part 430 inside the ram body 460 contracts in the central axis direction. The dynamic cone 2 is firmly gripped and raised, thereby pulling the dynamic cone 2 in the vertical direction.

At this time, the ram body 460 is raised to the maximum height, a compressive force is applied to the elastic means 440.

When the ram body is raised to the maximum height step of lowering the ram body by releasing the engagement with the dynamic cone (S23)

In this step (S23), it means a configuration that is switched from Figure 7 to Figure 6, when the ram body 460 is raised to the maximum height injection of compressed air is stopped, at this time, the dynamic cone 2 and the As the grip holder 430 is released, the ram body 460 is lowered.

At this time, the interruption of the injection of compressed air may be intermittently performed by the above-described control unit, and the supply of the compressed air is stopped when the maximum critical air pressure is reached by measuring the air pressure of the compressed air by the control unit. If the measured air pressure is less than or equal to the threshold, it may be performed in a manner that starts to inject compressed air.

In addition, the detection of the maximum rising height of the ram body 460 may be performed by an appropriate sensor means, which has already been mentioned in the description of the dynamic cone automatic penetration device.

Between the dynamic cone automatic penetration step (S10) and the dynamic cone automatic drawing step (S20), the step of exchanging the dynamic cone automatic penetration device and the dynamic cone automatic drawing device may be further included.

Here, in the dynamic cone automatic penetration step (S10), the steps S12 and S13 are repeated until the penetration depth of the dynamic cone 2 reaches a predetermined depth, and the dynamic cone automatic drawing step In S20, the steps S22 and S23 may be repeated until the dynamic cone 2 is completely drawn out.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will know well. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments included in the above description, but should be determined only by the claims of the following claims, and all modifications equivalent or equivalent to the claims of the claims .

1: ground 2: dynamic cone
4: tip part 6: adapter holder
8 handle 10 dynamic cone insert
100: hit part 120: tapered surface
140: piston rod 150: air flow path
160: air inlet port 180: piston rod cap
185: air outlet hole 200: cylinder body
210: air discharge hole 220: lower cap
225: corresponding tapered surface 230: upper cap
240: air plug 250: elastic member
400: dynamic cone automatic drawing device 405: air inlet
410: housing 420: housing cover
430: grip holder portion 440: elastic member
460: ram body 480: lower plate
S10: dynamic cone auto penetration step
S11: step of inserting a dynamic cone into the dynamic cone automatic penetration device
S12: step of raising the cylinder body by injecting air through the air injection unit
S13: forcibly lowering the cylinder body that has risen to the maximum height, and injecting the dynamic cone into the ground by hitting
S20: Dynamic Cone Automatic Drawing Step
S21: step of fastening the inserted dynamic cone and dynamic cone automatic drawing device
S22: injecting air through the air injection unit to raise the dynamic cone by combining the ram body with the dynamic cone
S23: step of lowering the ram body by releasing the engagement with the dynamic cone when the ram body rises to the maximum height

Claims (5)

In the automatic penetration and automatic drawing method of the dynamic cone for ground survey using the dynamic cone automatic penetration device and dynamic cone automatic drawing device,
A dynamic cone auto penetration step and a dynamic cone auto drawing step;
The dynamic cone automatic penetration step,
(A) inserting a dynamic cone to be inserted into the ground into a dynamic cone insertion portion formed at the bottom of the dynamic cone automatic penetration device;
(B) Injecting air through an air inlet formed in the lower portion of the piston rod of the dynamic cone automatic injection device comprising a cylinder body for vertical movement and a piston rod formed in the cylinder body for vertical movement of the cylinder body. Raising the cylinder body by flowing air through an air flow hole in the piston rod;
(C) When the cylinder body reaches the maximum lift position, the injection of air through the air inlet is stopped, and the air is discharged to the outside of the cylinder body through the air discharge hole formed in the lower portion of the cylinder body. Lowering the main body; And
(D) injecting the dynamic cone into the ground by hitting the striking portion formed at the lower end of the piston rod by the cylinder body being lowered;
The dynamic cone automatic drawing step,
(E) fastening the dynamic cone automatic drawing device to the intrusive dynamic cone;
(F) injecting air through an air injection portion formed in the lower portion of the dynamic cone automatic drawing device, combining the ram body formed inside the dynamic cone automatic drawing device and the dynamic cone, and raising the dynamic cone combined with the ram body; Making a step; And
(G) when the ram body reaches the maximum lift position, the coupling with the dynamic cone is automatically released to lower the ram body; characterized in that it comprises a,
Method of Automatic Penetration and Automatic Drawing of Ground Cone Dynamic Cone.
The method according to claim 1,
Further comprising exchanging the dynamic cone auto insertion device and the dynamic cone auto drawing device between the dynamic cone auto penetration step and the dynamic cone auto draw step.
Method of Automatic Penetration and Automatic Drawing of Ground Cone Dynamic Cone.
The method according to claim 1,
The arrival detection of the maximum lift position of the cylinder body in the step (c) is detected while the air is discharged to the outside of the cylinder body through the air discharge hole formed in the lower portion of the cylinder body,
Reaching the arrival of the maximum rise position of the ram body in the step (g), characterized in that it is sensed by a control unit for controlling the injection of compressed air for raising the ram body,
Method of Automatic Penetration and Automatic Drawing of Ground Cone Dynamic Cone.
The method according to claim 1,
The dynamic cone auto-injection step and the dynamic cone auto-drawing step are repeatedly performed by an air compressor capable of providing compressed air.
Method of Automatic Penetration and Automatic Drawing of Ground Cone Dynamic Cone.
The method according to claim 1,
In the dynamic cone automatic penetration step, steps (b) to (d) are repeated until the penetration depth of the dynamic cone reaches a predetermined depth,
In the dynamic cone automatic drawing step, the (bar) and (g) steps are repeated until the dynamic cone is completely drawn out,
Method of automatic penetration and automatic drawing of dynamic cones for ground survey.

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