KR100949606B1 - Hole-boring and hammering-vibration working method and device for integrated construction with sheet-pile fixed to outside of hole-boring auger casing - Google Patents

Abstract

PURPOSE: A method and a device for boring and hammering an integrated sheet pile for integrated construction is provided to carry out integrated construction by simultaneously hammering the casing and the sheet pile using a vibratory hammer. CONSTITUTION: A device(100) for boring and hammering an integrated sheet pile for integrated construction comprises a guide rail, a vibro-hammering unit(120), a clamp(122), and an auger(116). The guide rail is vertically arranged on the surface. The vibro-hammering unit is installed in the guide rail to be vertically moved. The vibro-hammering unit hammers a casing(124) fixed on a lower part. The clamp fixes a sheet pile(126) to contact the outside of the casing. The auger has a perforation rod(118).

Description

Hole-boring and hammering-vibration working method and device for integrated construction with sheet-pile fixed to outside of hole-boring auger casing}

The present invention relates to a one-piece sheet pile piercing method and a pier piercing device, and more particularly, the auger for drilling is inserted into the ground in the strata where the seat pile is difficult to hit by conventional techniques, such as a stone bed or rock bed ground. When the sheet pile is attached to the outside of the casing to perform a perforation using an auger and at the same time relates to an integrated sheet pile cloth airport punching method and a cloth hitting device for driving the casing with a vibratory hammer.

Generally, when constructing various civil and architectural structures, the ground is often excavated to utilize underground space. When excavating the ground, the earthquake method is used, and in the case of the non-order earthquake method, the additional method is used.

The earthquake method to prevent the collapse of the excavation ground includes the earthwork process using the earth plate, the sheet pile anti-punching method that can simultaneously obtain the order effect and the earthquake effect by hitting the sheet pile, and the deep drilling of the ground or high pressure spraying. Representative examples include the main heating method using treatment and the underground continuous wall method that excavates the ground while injecting the bentonite stabilizer into the ground, and places the reinforcing bar and concrete inside the excavation surface to be used as the main wall of the structure.

Types of the order method include an injection method, a high pressure injection method, a sheet pile driving or indentation method, and a deep mixing process.

The injection method is to inject the injection material into the ground gap, and the high-pressure injection method is to fill the ground by breaking and cutting the ground using high-pressure breaking energy, the sheet pile anti-punching method is a sheet pile ) Is installed on the ground, and the deep mixing treatment method is to cure by mixing and stirring cement and ground soil.

In order to utilize the underground space, the earthquake method is selected to excavate the ground safely. If there is groundwater on the excavation surface according to the situation, the above-mentioned order method is selected according to the surrounding environment and economic condition of the ground condition.

Here, the sheet pile (steel pile) anti-drilling method, which satisfies the effects of the ordering method and the soil barrier method at the time of excavating the ground, is excellent in economical and constructability, easy to supply the sheet pile, and draws the sheet pile after construction It has the advantage that can be reused, so it is widely used at home and abroad.

The general sheet pile anti-punching method is a method that can be used for soft ground by the method of driving the sheet pile 16 using the vibration hammer 14, as shown in Figure 1a. At this time, the seat pile 16 is alternately arranged around the virtual installation line to be installed, as shown in Figure 1b is inserted into the ground. Here, a joint is formed at both ends of the sheet pile 16 so that adjacent sheet piles 16 may be connected to each other.

Therefore, anti-puncture method using a vibratory hammer is difficult to apply the hard ground, gravel, stone layer, rock layer.

Waterjet is used as an improved method for driving sheet piles on hard ground or in gravel, gypsum and rock layers. In the waterjet method, as shown in FIG. 2A, a small steel pipe 27 is attached to the back of the sheet pile 26 and a high pressure spray nozzle (not shown) is attached to the sheet pile tip to cut the ground using high pressure water. It is a method of driving by vibrating hammer 24 while. As shown in FIG. 2B by the high-pressure jet nozzle, the steel pipe 27 is installed on the inner wall surface of the sheet pile 26, that is, the surface facing the virtual installation line.

Therefore, the waterjet method is smooth in crushing the hard ground or gravel layer, but it is impossible to install the rock or rock layer due to the limitation of the high pressure injection pressure. There is this.

In order to improve the problems of the waterjet method, anti-puncture method by congenital drilling has been devised and used. The punching method by the convex hole is a method used when entering a ground or hard rock layer with a rough sandstone used as a landfill material for shore reclamation, as shown in FIG. 3A, and a circular casing 33. And a drilling rod 34 and an excavation hammer 35 are positioned in the casing 33, using the auger 32 mounted on the upper end of the drilling rod 34 of the drilling rod 35. After hitting the drilling hammer 35 attached to the tip to excavate and replace the stone or rock after filling the sand or soil in the excavation hole, the casing 33 is pulled out to facilitate the seat pile driving.

In other words, in the anti-punching method by natural drilling, after replacing the rock with sand or soil by natural drilling as shown in FIG. 3B, the sheet pile 36 is driven and inserted therein.

However, the anti-puncture method by congenital drilling has a lot of problems in securing the construction quality due to the impossibility of the vertical depth and superimposition of the perforator when the concreting depth is more than 10m or in the case of rock formation.

The object of the present invention devised to solve the above problems is a sheet pile on the outside of the casing in which the auger for drilling is inserted into the ground in the strata where the sheet pile driving operation is difficult in the conventional technique such as the stone layer or the rock layer ground. The present invention provides a sheet pile fabric airport boring method and a fabric airport boring device for carrying out drilling by using an auger and simultaneously simultaneously driving the casing and sheet pile with a vibratory hammer.

The present invention for achieving the above object, the preparatory step of installing a normal casing perpendicular to the ground at a position to install the seat pile; A fixing step of fixing the sheet pile to the outer circumferential surface of the casing; A slewing step of drilling the ground through the inner space of the casing while inserting the casing in which the sheet pile is fixed; And a drawing step for drawing only the casing after the casing is inserted to a predetermined depth.

In the fixing step, the upper side of the sheet pile is fixed to the casing with a clamp, and the lower side of the sheet pile is fixed with a one-way force transmission mechanism installed on at least one of the sheet pile and the casing.

In addition, the one-way force transmission mechanism is characterized in that it comprises a coupling pin formed on the lower end of the casing, the coupling pin insertion member capable of engaging with the coupling pin formed on the inner wall surface of the sheet pile.

The coupling pin may be formed by cutting a casing wall around a portion where the coupling pin is disposed in the longitudinal direction of the casing at the lower end of the casing.

In addition, the coupling pin insertion member is formed to surround the coupling pin, the coupling pin member is characterized in that it does not protrude into the inner wall surface of the casing.

In addition, the coupling pin insertion member is characterized in that it is formed as a plate member long in the longitudinal direction of the pair of cross-section arc.

Further, the cross-sectional shape of the casing is the same as the cross-sectional shape formed by the inner wall when abutting both ends of two identical sheet piles.

In addition, in the above-mentioned air port hitting step, the driving of the casing is made by one or more vibration hammers, and the excavation of the ground is characterized by an auger having a perforated rod passing through the casing.

In addition, the lower end of the perforated rod is characterized in that the excavation hammer is installed to protrude downward than the casing.

Still another aspect of the present invention provides an integrated sheet pile fabric flying device according to the integrated sheet pile fabric flying method, comprising: a guide rail disposed perpendicular to the ground; A vibration driving part installed on the guide rail so as to be movable up and down, and driving a normal casing fixed to the lower part; A clamp installed outside the casing at a lower portion of the vibration driving part to fix the seat pile against the outer surface of the casing; And an auger installed at an upper portion of the vibration driving part so as to be guided up and down by the guide rail, and having a drilling rod for drilling the ground through the vibration driving part and the casing.

The lower end of the drilling rod is characterized in that the excavation hammer is installed to protrude downward than the casing.

In addition, the vibration driving unit is characterized in that the vibration hammer is installed on both sides of the casing.

In addition, the upper end of the casing is characterized in that the sludge discharge port is formed.

Through the present invention, it is possible to install on the gravel, gypsum, rock layer difficult to hit the sheet pile in a conventional manner and can prevent sheet pile damage.

In addition, the present invention is an economical method that can reduce the construction cost, and can shorten the construction period because it is an integrated construction method to perform the drilling and driving work in parallel.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described. In adding reference numerals to components of the following drawings, it is determined that the same components have the same reference numerals as much as possible even if displayed on different drawings, and it is determined that they may unnecessarily obscure the subject matter of the present invention. Detailed descriptions of well-known functions and configurations will be omitted.

The basic concept of the present invention is to secure the sheet pile to the casing in advance, and the casing is driven to the ground while the sheet pile is fixed, and at the same time, the ground is excavated through the inside of the casing.

To this end, means for attaching a sheet pile to the casing, means for excavating the ground through the casing while driving the casing, and means for removing the casing after inserting the casing into the ground to a predetermined target depth. Is required.

An integrated sheet pile fabric flying device 100 used in the integrated sheet pile fabric flying method of the present invention, which satisfies these needs, will be described schematically.

As shown in FIG. 4, it is a schematic diagram of the integrated sheet pile cloth cutter 100.

The one-piece sheet pile chute device 100 is a guide rail 110 that is vertically disposed with respect to the ground, a guide rail 110 that is vertically disposed with respect to the ground, and can be moved up and down on the guide rail 110 Vibration driving unit 120 for driving the casing 124 is fixed to the lower portion and installed in the lower portion, and the lower portion of the vibration driving unit 120 is installed outside the casing 124 to the seat pile 126 of the casing The clamp 122 is fixed to the outer surface and is installed to be guided up and down by the guide rail 110 in the upper portion of the vibration driving unit 120 to the vibration driving unit 120 and the casing 124 And an auger 116 having a perforated rod 118 that drills through the ground.

The guide rail 110 is installed in a construction machine such as a crane. The guide rail 110 is disposed such that the casing 124 is positioned at a position where the sheet pile 126 is to be installed.

The auger 116 and the vibration driving part 120 are installed on the guide rail 110 to be movable in the vertical direction.

As shown in FIG. 5, the vibration driving part 120 is integrally formed on one side of the vacuum driving part body 142 and the vacuum driving part body 142 so that the guide rail 110 and the sliding motion are formed. Slider 140 to be coupled as possible, a bush 134 for guiding the drill rod 118 of the auger 116 to penetrate, and vibration hammers (136, 138) installed around the bush (134) .

A casing 124 having a predetermined cross-sectional shape is fixedly installed under the vibration driving unit 120. The casing 124 has various cross-sectional shapes as necessary. For example, as shown in Fig. 6, a casing 1241 having a circular cross section, a casing 1243 having a horizontal cross section longer than a longitudinal length as a hexagon in cross section, and convex left and right sides are formed convexly and up and down sides. There is a casing 1245 having a substantially jar-shaped cross section in parallel, a casing 1246 having a hexagonal cross section and approximately equal to a longitudinal length, and a casing 1247 having a substantially quadrangular cross section.

The casings 1241, 1243, 1245, 1246, and 1247 are symmetrically formed with respect to the virtual horizontal center line. In addition, the casing 1241, 1243, 1247 may be provided with joints 1242, 1244, and 1248 to protect the joint 127 of the sheet pile 126.

Accordingly, the cross-sectional shape of the casing 124 is substantially the same as the cross-sectional shape formed by the inner wall surface of the sheet pile 126 when the two ends of each of the two sheet piles 126 abut.

In addition, a sludge discharge port (not shown) may be further formed at the upper end of the casing 124 to discharge the perforated sludge generated in the perforation by the auger 116.

In addition, the lower portion of the vibration driving unit 120 is provided with a clamp 122 that can be fixed by abutting the sheet pile 126 on the outer peripheral surface of the casing 124.

The clamp 122 may use a method of pressing and fixing the hydraulic pressure from the outside of the sheet pile 126 toward the casing 124 by using a hydraulic power, such as a hydraulic mechanism.

In addition, auxiliary casings 128 and 130 fixed to the guide rails 110 may be further installed in a state in which the casing 124 is held apart from the guide rails 110 so as to be separated from the guide rails 110.

The auger 116 is installed on the guide rail 110 above the vibration driving part 120.

The drilling rod 118 installed on the auger 116 and rotating to excavate the ground is installed to penetrate the bush 134 and the casing 124 of the vibration driving part 120.

Therefore, the end of the drilling rod 118 is installed to be exposed than the lower end of the casing 124.

In addition, the lower end of the drilling rod 118 is provided with an excavation hammer 132 to improve the excavation ability. As the excavation hammer 132, an air hammer can be used, and commercially available T-4 hammer can be used.

In addition, the vibration driving unit 120 and the auger 116, respectively, the position can be adjusted in the vertical direction from the guide rail 110, between the vibration driving unit 120 and the auger 116 The spacing is adjustable so that it can be applied to all of the various lengths of the casing 124.

The vibration driving unit 120 and the auger 116 are moved in the vertical direction by the tension of the cable 112 installed in the crane.

In addition, only when the sheet pile 126 is driven downward, the downward force is transmitted to the sheet pile 126, and the sheet pile 126 is inserted into the ground so that only the casing can be removed from the ground. Required.

Therefore, the one-way force transmission mechanism can be provided in any one or more of the said sheet pile 126 and the said casing 124. FIG. To this end, a wedge may be formed in the casing 124, and a wedge holder may be formed in the sheet pile 126 to receive the wedge. Alternatively, a method of installing a 'U'-shaped clip at the bottom of the sheet pile 126 and the casing 124 in contact with each other may be considered.

7A and 7B, a coupling pin 125 is formed at a lower end of the casing 124, and an inner wall surface of the sheet pile 126 is formed in the integrated sheet pile transfer device 100. As shown in Figure 8a and 8b, a coupling pin insertion member 129 that can be coupled to the coupling pin 125 is formed.

The coupling pin 125 is formed by cutting the casing 124 wall around the portion where the coupling pin 125 is disposed in the longitudinal direction of the casing 124 at the lower end of the casing 124. Therefore, the coupling pin 125 is formed in a substantially circular cross-section, the diameter of which is less than or equal to the thickness of the wall of the casing 124.

In addition, the coupling pin insertion member 129 is formed to surround the coupling pin 125. That is, the pair of cross sections is formed of a plate member long in the longitudinal direction having an arc shape. In particular, the coupling pin insertion member 129 should not protrude to the inside of the inner wall surface of the casing 124, so as not to interfere with the movement of the drilling rod 118.

Therefore, when the sheet pile 126 fixed to the clamp 122 in a state of being in contact with the casing 124 is downward, the upper surface of the coupling pin member 129 is the upper peripheral region of the coupling pin 125 Since it is in contact with the impact force of the vibration hammer (136,138) transmitted to the casing 124 can be transmitted to the sheet pile 126 as it is.

In addition, when the casing 124 is removed from the ground, when the clamping state of the clamp 122 is released from the sheet pile 126, the casing 124 is raised and the coupling pin 125 is moved. It is separated from the coupling pin insertion member 129 in the upward direction.

Therefore, only the casing 124 may be drawn out while the sheet pile 126 is inserted into the ground.

The integrated sheet pile fabric flying device 100 for implementing the integrated sheet pile fabric flying method is basically configured as described above. Hereinafter, an integrated sheet pile cloth airport punching method using the integrated sheet pile cloth punching device 100 will be described.

First, as shown in FIG. 9A, a casing 124 having a cross-sectional shape corresponding to the sheet pile 126 to be installed in the integrated sheet pile transfer device 100 is located below the vibration driving unit 120. Is installed. Then, the cable 112 is extended from the integrated sheet pile transfer device 100 and fixed to one end of one sheet pile 126.

As shown in FIG. 9B, the cable 112 of the integrated sheet pile cloth cutter 100 is erected to raise the sheet pile 126 to approach the casing 124.

Next, the sheet pile 126 is positioned to abut on the outer surface of the casing 124, and then the sheet pile 122 is gripped using the clamp 122.

At this time, the coupling pin 125 of the lower end of the casing 124 is inserted into the coupling pin insertion member 129 formed on the lower end of the sheet pile 126.

Since the coupling pin insertion member 129 is formed of a plate member long in the longitudinal direction having a pair of circular cross sections, the coupling pin insertion member 129 can be inserted by pushing the coupling pin 125 laterally.

Then, as shown in FIG. 9c, the drilling rod 118 is downwardly moved by the auger 116, and the drilling hammer 132 installed at the lower end of the drilling rod 118 is operated to excavate the ground. At the same time, the thrusting force is applied to the casing 124 by the vibration driving part 120 and inserted into the drilling hole formed by the auger 116 and the excavation hammer 132.

If this process continues, the casing 124 and the drilling rod 118 are simultaneously inserted into the ground in the form as shown in FIG. 9D. At this time, the sheet pile 126 installed in contact with the casing 124 is also inserted together.

When the casing 124 on which the seat pile 126 is mounted reaches a predetermined target depth, the perforated rod 118 and the casing 124 are drawn out using the cable 112. In this case, the pressure of the clamp 122 is released so that the sheet pile 126 is free with respect to the clamp 122.

At this time, as the coupling pin 125 formed in the casing 124 and the coupling pin insertion member 129 formed in the sheet pile 126 are separated from each other, only the sheet pile 126 is shown in FIG. 9E. It remains on the ground.

If the above process is repeated, the sheet pile 126 may be installed in the form as shown in FIG. 10 to perform the ordering method and the earthing method on the stone layer or the rock layer.

As described above, it has been described with reference to the preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

Figure 1a is a schematic diagram of a seat pile driving apparatus according to the seat pile driving method of the prior art.

FIG. 1B is a schematic view of the seat pile constructed by the seat pile driving apparatus of FIG. 1A.

Figure 2a is a schematic diagram of the seat pile driving apparatus according to the water jet method of the prior art.

FIG. 2B is a schematic view of the seat pile constructed by the seat pile driving apparatus of FIG. 2A.

Figure 3a is a schematic diagram of a punching device according to the anti-punching method of the prior art by a perforation.

Figure 3b is a schematic view of the sheet pile constructed by the anti-punching method of the conventional art of perforation.

4 is a schematic diagram of an integrated sheet pile fabric flying device used in the integrated sheet pile fabric flying method of the present invention.

FIG. 5 is a plan view of a vibration driving unit of the integrated sheet pile cloth shifter of FIG. 4.

FIG. 6 is a plan view of a modification of the casing of the integrated sheet pile cloth cutter of FIG. 4. FIG.

FIG. 7A is a perspective view of a casing used in the integrated sheet pile cloth cutter of FIG. 4. FIG.

FIG. 7B is a bottom view of the casing of FIG. 7A. FIG.

FIG. 8A is a perspective view of a sheet pile used in the integrated sheet pile cloth cutter of FIG. 4. FIG.

FIG. 8B is a bottom view of the sheet pile of FIG. 8A.

9A to 9E are diagrams illustrating a work process of performing the integrated sheet pile fabric airport boring method using the integrated sheet pile fabric air borer of FIG. 4.

10 is a view for explaining a work process for performing the integrated sheet pile fabric airport punching method.

<Description of the symbols for the main parts of the drawings>

10,20,100: Seat pile driving device 14,22,112: Cable

14,24: Vibratory hammer 16,26,36,126: Sheet pile

27: steel pipe 28: water source

29: water supply pipe 30: drilling device

32,116: Auger

33,124,1242,1243,1245,1246,1247: Casing 34,118: Perforated Rod

35: excavation hammer 110: guide rail

120: vibration driving part 122: clamp

128,130: auxiliary clamp 125: coupling pin

127: joint 129: coupling pin insertion member

132: excavation hammer 134: bush

136,138: vibration hammer 140: slider

142: vacuum harbor body 1242, 1244, 1248: joint ear

Claims (12)

A preparation step of vertically installing the casing perpendicular to the ground at the position where the sheet pile is to be installed; A fixing step of fixing the sheet pile to the outer circumferential surface of the casing; A slewing step of drilling the ground through the inner space of the casing while inserting the casing in which the sheet pile is fixed; And After the casing is inserted to a predetermined depth, the drawing step of drawing only the casing, In the fixing step, the upper side of the sheet pile is fixed to the casing with a clamp, the lower side of the sheet pile is fixed with a one-way force transmission mechanism installed on at least one of the sheet pile and the casing, The one-way force transmission mechanism includes a coupling pin formed at the lower end of the casing, and a coupling pin insertion member engageable with the coupling pin formed on the inner wall surface of the sheet pile, And the coupling pin is formed by cutting a casing wall around a portion of the casing in which the coupling pin is disposed in the longitudinal direction of the casing at the lower end of the casing. delete delete delete The method of claim 1, wherein the coupling pin insertion member is formed to surround the coupling pin, and the coupling pin member does not protrude into an inner wall surface of the casing. The method according to claim 5, wherein the coupling pin insertion member is formed as a plate member long in the longitudinal direction in which a pair of cross sections are arc-shaped. The method of claim 1, wherein the cross-sectional shape of the casing is the same as the cross-sectional shape formed by the inner wall when abutting both ends of two identical sheet piles. The integrated seat according to claim 1, wherein, in the above-described air piercing step, the driving of the casing is made by at least one vibratory hammer, and the excavation of the ground is by an auger having a perforating rod passing through the casing. Piling airport punching method. In the integrated sheet pile fabric flying device according to any one of claims 1, 5, 6, 7, and 8, A guide rail disposed perpendicular to the ground; A vibration driving part installed on the guide rail so as to be movable up and down, and driving a normal casing fixed to the lower part; A clamp installed outside the casing at a lower portion of the vibration driving part to fix a seat pile against the outer surface of the casing; And It is installed to be guided up and down by the guide rail on the upper portion of the vibration driving unit, integral sheet pile transfer device comprising a auger having a drilling rod for drilling the ground through the vibration driving unit and the casing . 10. The integrated sheet pile rolling device as set forth in claim 9, wherein an excavation hammer is installed at the lower end of the punching rod to protrude downward from the casing. 10. The integrated sheet pile rolling device as set forth in claim 9, wherein the vibrating hammer is provided with vibration hammers on both sides of the casing. 10. The integrated sheet pile rolling device as set forth in claim 9, wherein a sludge discharge port is formed at an upper end of the casing.

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