KR101722518B1 - Drilled large diameter rotary drilling equipment and drilling process using multi-bucket - Google Patents

Abstract

The present invention provides a large diameter underground structure construction method using a multi-drilling bucket and large diameter underground structure construction equipment which comprises: an oscillator (20); a soft rock drilling bucket (100); and a hard rock drilling bucket (200). The soft rock drilling bucket (100) comprises: a body (110); a storage hopper (140); and a discharge member (150). The hard rock drilling bucket (200) comprises: a body (210); a storage hopper (240); and a discharge member (250). According to the present invention, a construction period of time can be significantly reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a drilling apparatus,

The present invention relates to a large-diameter underground structure construction method and a construction equipment using a multi-excavation bucket, and more particularly, to a structure capable of smoothly constructing a large-diameter structure in the ground by selectively using a multi- (Hereinafter referred to as " DBMH ") using a multi-excavation bucket.

In general, concrete piles are constructed so that they have a certain depth in the ground of soft ground, which is excavated by using the same equipment irrespective of the softness of soft ground, resulting in frequent failures due to equipment overload and shortening of service life .

In addition, conventionally, the construction process of the excavation and concrete pile is complicated and troublesome, resulting in a problem of delaying the construction period.

Especially in the past, it has been difficult to effectively cope with the softness of the ground due to the softness of the ground, thereby causing a problem of providing the cause of the failure.

Conventionally, since the rock and the soil of the soft ground excavated on the soft ground can not be easily discharged to the outside, the construction efficiency is lowered.

In addition, the conventional RCD method has a problem that the excavation noise is severe, the work time of the drilling work is increased, the productivity is decreased, and the operation cost is increased.

Korean Patent Publication No. 10-1996-0034597 (October 24, 1996) Korean Patent Laid-Open No. 10-2006-0106115 (2006.10.12) Korean Patent Laid-Open No. 10-2009-0115702 (2009.11.05) Korean Patent Publication No. 10-2010-0099984 (September 15, 2010) Korean Patent Laid-Open No. 10-2011-0011733 (2011.02.08) Korean Published Patent No. 10-2011-0079475 (July 7, 2011) Korean Patent No. 10-1489387 (2015.02.04)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

An object of the present invention is to provide a large-diameter underground structure construction method and a construction equipment using a multi-excavation bucket capable of smoothly constructing a large-diameter structure in the ground of soft ground through a series of processes.

It is another object of the present invention to provide a large-diameter underground structure construction method and a construction equipment using a multi-excavation bucket capable of improving construction efficiency by excavating and drilling using two excavating buckets according to the ground softness of soft ground. have.

It is another object of the present invention to provide a large-scale underground structure construction method and a construction equipment using a multi-excavation bucket capable of storing excavated rocks and artificial soil in an excavating bucket to discharge the excavated bucket.

In order to accomplish the above object, there is provided a large diameter ground structure construction method using a multi-

A first step of introducing the casing (30) into the ground by using an oscillator (20) installed at the front lower part of the crane (10);

A second step of excavating the soft rock and the earth located inside the casing (30) by installing a soft rock digging bucket (100) on the crane (10);

A third step of discharging the excavated soft rock and ito to the ground using the soft stone excavation bucket 100;

A fourth step of excavating the soft rock excavation bucket 100 to the crane 10 and installing a light rock excavation bucket 200 to excavate the rock excavation bucket 200 and the rock cavern located in the casing 30;

A fifth step of discharging the excavated carcass and the excavated soil to the ground using the excavation bucket 200;

A sixth step of installing a reinforcing net (40) inside the casing (30);

A seventh step of pouring the concrete 50 into the casing 30;

And an eighth step of withdrawing the casing (30) before the concrete (50) is cured.

According to another aspect of the present invention, there is provided a construction apparatus for a large-diameter underground structure using a multi-

An oscillator (20) installed at a front lower portion of the crane (10) for penetrating and drawing the casing (30) into the ground; A soft stone excavating bucket 100 installed at an upper portion of the crane 10 for excavating and discharging soft rock and ito; And a soft rock excavation bucket 200 installed on the upper part of the crane 10 for excavating and discharging the soft rock and the artificial rock, wherein the soft rock excavating bucket 100 is formed with a hammering 130 inside the center, A body 110 provided with a plurality of excavating bits 120 radially and having discharge holes 111, 112 at upper and lower portions; A storage hopper (140) for storing the soft rock and the artifact which is seated on the upper part of the body (110) and excavated therein; And a discharge member 150 installed at one side of the upper part of the crane 10 to lift the storage hopper 140 and discharge the excavated soft marsh and mud to the outside, A body 210 having a plurality of excavating bits 220 formed on the outer side of the lower surface thereof and having a discharge hole 211 at an upper portion thereof; A storage hopper 240 for storing the carcass and the soot which are seated on the upper part of the body 210 and excavated therein; And a discharge member (250) installed on one side of the crane (10) to raise the storage hopper (240) to discharge the excavated carcass and artifacts to the outside.

The discharge members 150 and 250 are installed on the upper part of the crane 10 so that the storage hoppers 140 and 240 can be moved upward or downward by the operation of a winding machine installed on one side of the crane 10, 110, 210).

A plurality of engaging projections 141 and 241 are provided on both sides of the upper portion of the storage hoppers 140 and 240 and detachable members 160 and 260 which are engaged with the engaging projections 141 and 241 on both sides of the lower portions of the discharging members 150 and 250, .

At this time, the detachable members (160, 260) include a body (161, 261) having cylinders (162, 262) Expansion parts (163, 263) provided on the rods of the cylinders (162, 262) so as to be gradually widened from the lower part to the upper part; A pair of clamps 164 and 264 formed to be rotatable inward or outward around the hinge shafts 164a and 264a formed on both sides of the inside of the main body 161 and 261; And a spring (165, 265) formed on both sides of the main body (161, 261) for pushing the outer side of the clamps (164, 264) so as to come into contact with each other.

In particular, the clamps 164 and 264 are provided with guide portions 164b and 264b so as to be inclined inwardly from the lower portion to the upper portion of the clamps 164 and 264. The clamps 164 and 264 can be engaged with the locking projections 141 and 241, respectively, And hooking jaws 164c and 264c.

The present invention has the effect of drastically shortening the construction time by constructing the large diameter structure in the ground of the soft ground by using two excavating buckets according to the soft ground of the soft ground.

Particularly, the present invention has the effect of preventing the overload of the excavating bucket that occurs during the excavation of the soft ground, thereby improving durability and service life.

Further, the present invention has the effect of preventing the cause of the failure installation in advance through effective countermeasures according to the softness of the soft ground.

In addition, the present invention has the effect of improving the construction efficiency by smoothly discharging the excavated rock mass and soil.

FIGS. 1 to 9 are flowcharts for illustrating a large diameter ground structure construction method using a multi-excavation bucket according to the present invention.
10 and 11 are cross-sectional views illustrating the construction of a soft rock drilling bucket according to the present invention.
12 and 13 are cross-sectional views illustrating the construction of a rock excavation bucket according to the present invention.
14 is a cross-sectional view illustrating a configuration of a desorption member in the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

FIGS. 1 to 9 are flowcharts for illustrating a large-diameter ground structure construction method using a multi-excavation bucket according to the present invention.

The present invention relates to a crane (10), comprising: a first step of penetrating a casing (30) into the ground using an oscillator (20) installed at a front lower part of a crane (10);

A second step of excavating the soft rock and the earth located inside the casing (30) by installing a soft rock digging bucket (100) on the crane (10);

A third step of discharging the excavated soft rock and ito to the ground using the soft stone excavation bucket 100;

A fourth step of excavating the soft rock excavation bucket 100 to the crane 10 and installing a light rock excavation bucket 200 to excavate the rock excavation bucket 200 and the rock cavern located in the casing 30;

A fifth step of discharging the excavated carcass and the excavated soil to the ground using the excavation bucket 200;

A sixth step of installing a reinforcing net (40) inside the casing (30);

A seventh step of pouring the concrete 50 into the casing 30;

And an eighth step of withdrawing the casing (30) before the concrete (50) is cured.

In the first step of the present invention, as shown in FIG. 1, the process is a process for penetrating the casing 30 with a predetermined depth using the oscillator 20.

Here, the oscillator 20 may be rotated while reciprocating in the vertical direction to penetrate the casing 30 to have a predetermined depth in the ground.

At this time, the ground can be uniformly arranged in the lower part of the oscillator 20 for stable construction, or a flat work can be performed by installing it as a flat plate.

A plurality of inclination measuring sensors are installed on one side of the oscillator 20, and a cylinder installed on one side of the oscillator 20 is operated according to the measured inclination to adjust the verticality of the casing 30 to fit the design specification. And intrusive work can be carried out.

2 and 4, the second step is to install the soft stone excavating bucket 100 on the crane 10 and then lower the inner side of the casing 30 while descending by the operation of the crane 10, Is a process for excavating soft rock and ito.

Here, the soft stone excavating bucket 100 is used for excavating and discharging soft rock having a hard ground condition.

At this time, the excavated soft rock and ito can be stored in the storage hopper 140 of the soft rock excavation bucket 100.

3 and 5, the third step of the present invention is a process for discharging the soft rock and the earth excavated using the soft stone excavation bucket 100 to the ground.

At this time, the soft manganese ore stored in the storage hopper 140 of the soft mine excavation bucket 100 may be drained by lifting up the soft mine excavation bucket 100 by the operation of the crane 10.

Particularly, since the soft stone excavation bucket 100 does not require a separate discharge bucket and vacuum suction device for discharging the soft rock and the excavated soil to the ground as in the prior art, it is possible to promptly discharge the soft stone and the earth.

In the fourth step, as shown in FIG. 6, the soft stone excavating bucket 100 is detached from the crane 10, and the light excavation bucket 200 is installed to descend by the operation of the crane 10, Is a process for excavating rocks and islands located in the interior of the building 30.

The excavation bucket 200 is used for excavating and discharging a hard rock having a hard ground condition.

At this time, excavated light rock and ito can be stored in the storage hopper 240 of the light rock excavation bucket 200.

In the fifth step, as shown in FIG. 7, the fifth step is a step of discharging the excavated rock and the earth using the excavation bucket 200.

At this time, the light and rock stored in the storage hopper 240 of the light rock excavation bucket 200 can discharge the ground lifting the light rock excavation bucket 200 by the operation of the crane 10.

In particular, since the excavation bucket 200 does not require a separate excavating bucket and a vacuum inhaling device for discharging the excavated excavated concrete and the excavated soil to the ground, the excavation bucket 200 can rapidly discharge the excavated concrete and the excavated soil.

In the sixth step of the present invention, as shown in FIG. 8, the reinforcing net 40 is inserted into the casing 30 to install the reinforcing net 40.

At this time, the reinforcing net (40) is connected to the crane (10) and inserted into the casing (30) after the laying work so as to have a length and a diameter according to the design depth on the ground.

In the seventh step of the present invention, as shown in FIG. 9, the concrete (50) is laid in the casing (30) to construct a structure (foundation pile).

Here, the concrete 50 may be solidified together with the reinforcing net 40 to construct a high-strength structural body.

In particular, the concrete 50 may be stored in a tank installed on the ground and supplied with a certain pressure into the casing 30 using a high-pressure pump.

In the eighth step of the present invention, the concrete 30 may be pulled out of the casing 30 before the concrete 50 is cured, thereby constructing the structure in which the reinforcing net 40 and the concrete 50 are solidified together.

At this time, the casing (30) can be pulled upward by the oscillator (20) and discharged to the ground.

In addition, according to the present invention, a large-diameter underground structure construction equipment using a multi-

An oscillator (20) installed at a front lower portion of the crane (10) for penetrating and drawing the casing (30) into the ground; A soft stone excavating bucket 100 installed at an upper portion of the crane 10 for excavating and discharging soft rock and ito; And a soft rock excavation bucket 200 installed on the upper part of the crane 10 for excavating and discharging the soft rock and the artificial rock, wherein the soft rock excavating bucket 100 is formed with a hammering 130 inside the center, A body 110 provided with a plurality of excavating bits 120 radially and having discharge holes 111, 112 at upper and lower portions; A storage hopper (140) for storing the soft rock and the artifact which is seated on the upper part of the body (110) and excavated therein; And a discharge member 150 installed at one side of the upper part of the crane 10 to lift the storage hopper 140 and discharge the excavated soft marsh and mud to the outside, A body 210 having a plurality of excavating bits 220 formed on the outer side of the lower surface thereof and having a discharge hole 211 at an upper portion thereof; A storage hopper 240 for storing the carcass and the soot which are seated on the upper part of the body 210 and excavated therein; And a discharge member 250 installed at one side of the upper portion of the crane 10 to raise the storage hopper 240 to discharge the excavated carcass and artifacts to the outside.

In particular, since the oscillator 20 is a device commonly used in the art, a detailed description of the operation principle and structure will be omitted.

In the present invention, the soft stone excavation bucket 100 is a very important construction for excavating soft rock having N values of soft ground of 0 to 8 and discharging the soft rock and the excavated rock to the outside.

A plurality of excavating bits 120 are provided radially on the lower surface of the body 110 to excavate the soft rocks while rotating, and the hammers 130 repeatedly move in the vertical direction to crush the soft rocks.

As shown in FIG. 10, the discharge holes 111 and 112 serve as a transfer passage for supplying the excavated and crushed soft rock and the artifacts to the interior of the storage hopper 140.

The compressed air supplied from the outside may be injected into the ground at one side of the body 110 or the hammers 130 to guide the excavated and crushed soft rocks and artifacts into the discharge holes 111 and 112 .

At this time, a swivel is installed between the rotating body 110 or the hammers 130 and a hose (not shown) or a supply pipe (not shown) for supplying the compressed air so that they are not twisted or interfered with each other Prevent cutting.

Particularly, the storage hopper 140 is intended to exclude the repetitive and unnecessary processes of discharging the soft rock and the artifact immediately excavated after excavation work to the ground using a separate bucket, and then excavating and discharging the same.

That is, since continuous excavation can be performed while the excavated and crushed soft rock and it is stored in the storage hopper 140, it is possible to minimize the delay of the construction period and improve the construction efficiency.

11, the storage hopper 140 can store soft mica and mica in a state where the storage hopper 140 is seated on the upper part of the body 110 in the form of an empty space and an open lower part, It is possible to discharge the stored soft rock and ito to the outside.

The discharging member 150 is configured to lift the storage hopper 140 that is seated on the upper portion of the body 110 to discharge the soft stones and artifacts stored in the storage hopper 140 to the outside .

The discharge member 150 is provided with a rope 151 at an upper portion thereof and moves upward and downward by the operation of a takeup machine installed at one side of the crane 10 to raise the storage hopper 140, 110). ≪ / RTI >

At this time, a plurality of locking protrusions 141 are provided on both sides of the upper portion of the storage hopper 140, and a detachable member 160 is provided on both sides of the lower portion of the discharging member 150 so as to be engaged with the locking protrusions 141 can do.

In the present invention, as shown in FIG. 14, the detachable member 160 includes a body 161 having a cylinder 162 in a vertical direction at an upper portion thereof; An extension part 163 provided on the rod of the cylinder 162 so as to be gradually widened from the lower part to the upper part; A pair of clamps 164 formed to be rotatable inward or outward around a hinge shaft 164a formed on both sides of the inside of the main body 161; And a spring 165 formed on both sides of the main body 161 to push the outer side of the clamp 164 against each other.

In particular, the spring 165 normally generates an elastic force so that the clamps 164 stay in contact with each other.

When the storage hopper 140 is lifted up, the expansion part 163 is lowered simultaneously with the cylinder 162 to push the upper part of the clamp 164 and the clamp 164 is rotated around the hinge shaft 164a. The clamping protrusion 141 is positioned between the clamps 164.

When the cylinder 162 is operated in the upward direction, the clamp 164 is rotated inward to engage with the locking protrusion 141, so that the storage hopper 140 is lifted and stored therein, It can be discharged to the outside.

When the storage hopper 140 is mounted on the upper part of the body 110, the discharge unit 150 may be lifted in a state in which the expansion unit 163 is lowered and the clamp 164 is opened to the outside.

Particularly, the lower portion of the clamp 164 is provided with an induction portion 164b which gradually slopes inward toward the upper portion from the lower portion to the upper portion. When the upper surface of the engaging projection 141 and the guide portion 164b come into contact with each other, The clamp 164 may be provided with a latching protrusion 164c to be engaged with the latching protrusion 141 at the intermediate portion of the clamp 164.

In the present invention, the hard rock excavation bucket 200 is a very important constituent for excavating the hard rock having 9 to 31 N values of the soft ground and discharging the excavated hard rock and ito to the outside.

Here, a plurality of excavating bits 220 are provided on the outer side of the lower surface of the body 210, and the excavation bit 220 is excavated while rotating, and the hammer 230 is repeatedly moved upward and downward to crush the excavation.

At this time, the excavation bit 220 forms a donut-shaped excavation hole (core barrel) when the excavation bit 220 is provided outside the lower surface of the body 210 to excavate the excavation, Crush remaining caustic rocks.

Also, as shown in FIG. 12, the discharge hole 211 serves as a moving passage to supply excavated and crushed light rocks and artifacts into the storage hopper 240.

The compressed air supplied from the outside may be injected into the ground at one side of the body 210 or the hammers 230 to guide the excavated and crushed light rocks and the like into the discharge hole 211 .

At this time, a swivel is installed between the rotating body 210 or the hammers 230 and a hose (not shown) or a supply pipe (not shown) for supplying the compressed air so that they are twisted or interrupted Prevent cutting.

Particularly, the storage hopper 240 is intended to exclude the repetitive and unnecessary processes of discharging the carcass and the excavated excavated material immediately after the excavation work to the ground by using a separate bucket, and then excavating and discharging the carcass and the excavated material again.

That is, since continuous excavation can be performed while excavated and shredded light rock and ito are stored in the storage hopper 240, the delay of the construction period can be minimized and the construction efficiency can be improved.

In this case, the storage hopper 240 can store the carcass and the inside of the storage hopper 240 in a state where the storage hopper 240 is seated on the upper part of the body 210 as shown in FIG. 13, It is possible to discharge the carcass and the ito stored therein.

The discharge member 250 has a structure for lifting the storage hopper 240 in a state of being placed on the upper part of the body 210 and discharging the carcass and the artifacts stored in the storage hopper 240 to the outside .

The discharge member 250 is provided with a rope 251 at an upper portion thereof so that the storage hopper 240 can be moved upward or downward by the operation of a winder installed at one side of the crane 10, 210, respectively.

At this time, a plurality of locking protrusions 241 are provided on both sides of the upper portion of the storage hopper 240 and a detachable member 160 is installed on both sides of the lower portion of the discharging member 250 to engage with the locking protrusion 241, can do.

In the present invention, as shown in FIG. 14, the detachable member 260 includes a body 261 having a cylinder 262 in a vertical direction at an upper portion thereof; An extension part 263 provided on the rod of the cylinder 262 so as to be gradually wider from the lower part to the upper part; A pair of clamps 264 formed to be rotatable inward or outward around a hinge shaft 264a formed on both sides of the inside of the main body 261; And a spring 265 formed on both sides of the main body 261 and pushing the outer side of the clamp 264 so as to be in contact with each other.

In particular, the spring 265 normally generates an elastic force so that the clamps 264 remain in contact with each other.

When the storage hopper 240 is lifted up, the expansion part 263 is lowered simultaneously with the cylinder 262 to push the upper part of the clamp 264, and the clamp 264 is rotated around the hinge shaft 264a. The latching protrusion 241 is positioned between the clamps 264. [

When the cylinder 262 is operated in the upward direction, the clamp 264 is rotated inward to engage with the locking protrusion 241, so that the storage hopper 240 is lifted and stored therein. It can be discharged to the outside.

When the storage hopper 240 is mounted on the upper portion of the body 210, the discharge member 250 may be lifted in a state in which the expansion member 263 is lowered and the clamp 264 is extended outward.

A guide 264b is provided at an inner lower portion of the clamp 264 so that the guide 264b is gradually inclined inwardly from the lower portion to the upper portion of the clamp 264. When the upper surface of the engaging projection 241 is in contact with the guide portion 264b, And the clamp 264c may be provided on the intermediate inside of the clamp 264 so as to be engaged with the locking projection 241. [

Therefore, the present invention can efficiently construct large diameter structures such as offshore and onshore wind force foundation files, onsite pile foundation pile files, and the like.

Although the embodiments of the present invention have been described above in detail, it is to be understood that the scope of the present invention is not limited to the above embodiments and that various changes and modifications may be made without departing from the scope of the present invention. Of course.

10: Crane 20: Oscillator
30: casing 40: reinforcing mesh
50: Concrete
100: soft stone excavation bucket 110: body
111, 112: Exhaust hole 120: Excavation bit
130: Hammer 140: Storage hopper
141: locking protrusion 150: ejection member
151: Rope 160: Desorption member
161: main body 162: cylinder
163: extension part 164: clamp
164a: Hinge shaft 164b:
164c: latching jaw 165: spring
200: girder excavation bucket 210: body
211: Exhaust hole 220: Excavation bit
230: Hammer 240: Storage hopper
241: locking projection 250:
251: Rope 260: Desorption member
261: main body 262: cylinder
263: extension part 264: clamp
264a: a hinge shaft 264b:
264c: latching jaw 265: spring

Claims (6)

delete An oscillator (20) installed at a front lower portion of the crane (10) for penetrating and drawing the casing (30) into the ground; A soft stone excavating bucket 100 installed at an upper portion of the crane 10 for excavating and discharging soft rock and ito; And a soft rock excavation bucket 200 installed on the upper part of the crane 10 for excavating and discharging the soft rock and the artificial rock, wherein the soft rock excavating bucket 100 is formed with a hammering 130 inside the center, A body 110 provided with a plurality of excavating bits 120 radially and having discharge holes 111, 112 at upper and lower portions; A storage hopper (140) for storing the soft rock and the artifact which is seated on the upper part of the body (110) and excavated therein; And a discharge member 150 installed at one side of the upper part of the crane 10 to lift the storage hopper 140 and discharge the excavated soft marsh and mud to the outside, A body 210 having a plurality of excavating bits 220 formed on the outer side of the lower surface thereof and having a discharge hole 211 at an upper portion thereof; A storage hopper 240 for storing the carcass and the soot which are seated on the upper part of the body 210 and excavated therein; And a discharge member (250, 250) installed on one side of the upper part of the crane (10) for raising the storage hopper (240) and discharging the excavated carcass and artifact to the outside, The ropes 151 and 251 are installed and moved up and down by the operation of a winder installed on one side of the crane 10 to raise the storage hoppers 140 and 240 or to seat them on the upper surface of the bodies 110 and 210, A plurality of engaging projections 141 and 241 are provided on both sides of the upper portion of the storage hoppers 140 and 240 and detachable members 160 and 260 are provided at both lower sides of the discharging members 150 and 250 to engage and disengage the engaging projections 141 and 241, The detachable member (160, 260) includes a body (161, 261) having cylinders (162, 262) vertically in an upper portion thereof; Expansion parts (163, 263) provided on the rods of the cylinders (162, 262) so as to be gradually widened from the lower part to the upper part; A pair of clamps 164 and 264 formed to be rotatable inward or outward around the hinge shafts 164a and 264a formed on both sides of the inside of the main body 161 and 261; And a spring (165, 265) formed on both sides of the main body (161, 261) for pushing the outside of the clamps (164, 264) so as to come into contact with each other. delete delete delete The clamp according to claim 2, wherein the clamps (164, 264) are provided with guiding parts (164b, 264b) inclined inwardly from the lower part to the upper part, and the engaging projections (141, 241) And a hooking protrusion (164c, 264c) for engaging the large-diameter underground structure with the multi-excavation bucket.

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