WO2016194265A1 - 土留部材の撤去方法 - Google Patents
土留部材の撤去方法 Download PDFInfo
- Publication number
- WO2016194265A1 WO2016194265A1 PCT/JP2016/000442 JP2016000442W WO2016194265A1 WO 2016194265 A1 WO2016194265 A1 WO 2016194265A1 JP 2016000442 W JP2016000442 W JP 2016000442W WO 2016194265 A1 WO2016194265 A1 WO 2016194265A1
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- WO
- WIPO (PCT)
- Prior art keywords
- retaining member
- injection
- earth retaining
- ground
- earth
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
Definitions
- the present invention relates to a method of pulling out a retaining member used in earth retaining work without causing ground cracking or softening of the ground and removing it from the ground.
- the buried earth retaining member is collected by pulling out the earth retaining member from the ground using the earth retaining member pressure drawing machine.
- a void is generated in the ground to cause settlement or cracking of a building or the like, and therefore a method of injecting an injection material such as a solidifying agent into the void has been proposed (for example, see Patent Document 1). .
- the present invention uses five or more continuous retaining members as one block, inserts an injection pipe adjacent to or near the retaining member located at the center of the block, and fixes the retaining member to the retaining member. Without the step of installing in the ground, and every time the retaining members in the block are raised one by one in order, the injecting material is caused to flow out from the injecting pipe, and the injecting material is caused to flow into the void generated in the ground, A method for removing the earth retaining member is provided.
- This earth retaining wall is composed of an earth retaining wall and a supporting work, and earth retaining members such as steel sheet piles (sheet piles) are used for the retaining wall.
- An eye beam or the like having an I-shaped cross section is used.
- FIG. 1 is a view showing a sheet pile as a retaining member.
- the sheet pile 10 has a U shape, a Z shape, a straight shape, and an H shape because of its cross-sectional shape.
- a plurality of the sheet piles 10 are arranged in a row and driven into the ground to construct a wall surface without a gap. This is because the shape of the sheet pile 10 is strong enough to withstand the earth pressure and water pressure applied to the sheet pile 10, and in the case of temporary installation, it has rigidity sufficient to withstand repeated use of driving and pulling.
- the sheet pile 10 shown in FIG. 1 is a U-shaped steel sheet pile.
- the U-shaped steel sheet pile is provided with joints 11 to be hooked and connected to both sides.
- a wall surface having irregularities as shown in FIG. 5 can be formed. By forming such a wall surface, it is possible to provide a higher strength than a straight wall surface.
- the sheet pile 10 can contain copper for corrosion protection, and can use what coated the surface of the polyethylene-type resin and the polyurethane-type resin.
- the majority of the sheet pile 10 that has been filled is reusable. If it can be reused, resources can be used effectively, and the generation of carbon dioxide when the sheet pile 10 is manufactured by reuse can be suppressed. Therefore, even when a structure or an embedded object exists in the surroundings, the sheet pile 10 is pulled out and removed without damaging the embedded object, without collapsing the structure, and without taking time and cost. The method is described in detail below.
- an injection tube for injecting the injection material when the sheet pile 10 is removed, an injection tube for injecting the injection material, a supply pump for supplying the injection material into the injection tube, a container in which the injection material is accommodated, and a cutting hole for drilling the ground.
- An injection pipe erection device that inserts and installs an injection pipe into a hole formed by a hole device, a hole drilling device, and an earth retaining member pressure drawing machine for pulling out the sheet pile 10 are used.
- the supply pump, the container, the hole drilling device, and the injection pipe erection device commonly used ones can be adopted.
- the supply pump can be a centrifugal pump such as a gear pump or a reciprocating pump such as a plunger pump.
- the container may be of any shape made of steel, plastic resin such as polyvinyl chloride or FRP (Fiber Reinforced Plastics), and a container having an appropriate capacity corresponding to the amount of the injection material used can be used.
- the hole drilling device has a pointed conical tip and a hole drilling member in which a spiral groove is formed, a rod-shaped rod to which the monitor is connected, and the rod can be rotated and moved up and down. It can be provided with a clamping means for clamping in a possible manner.
- the monitor is not limited to a conical shape with a sharp tip and a spiral groove, but is a bit having a plurality of blades (tips) that penetrate while cutting the ground. Also good.
- the injection tube erection device is provided with clamping means for clamping the injection tube, and by adjusting the force for clamping the injection tube, the injection tube is lowered at a constant speed to insert the injection tube, and the injection tube is inserted into the insertion hole. Things can be mentioned. Since these are examples, the present invention is not limited to these devices.
- the earth retaining member presser 20 is a well-known device that is prevalent as a noiseless and vibration-free pile presser.
- the earth retaining member press-extracting machine 20 performs pressure drawing and extraction of the earth retaining member 21 by hydraulic pressure.
- the earth retaining member press-drawing machine 20 includes a chuck 22 for gripping the earth retaining member 21 that is an object of the drawing or drawing, and an elevating device 23 that moves the chuck 22 up and down.
- the earth retaining member extracting machine 20 includes a plurality of gripping portions 25 for grasping the top of the earth retaining member 24 buried in the ground.
- the grasping portion 25 takes a reaction force from the existing pile by grasping the top portion of the existing pile, and press-fits or pulls out the earth retaining member 21 with respect to the ground by the chuck 22.
- the earth retaining member extracting machine 20 is configured to be able to move in the direction in which the earth retaining members 24 are arranged along the top of the earth retaining members 24 arranged in a row.
- the injection pipe 30 may be a pipe made of a plastic resin such as a steel pipe or a polyvinyl chloride pipe, or a pipe whose tip is molded into various shapes. For example, what was shape
- the hole for inserting the injection tube 30 is formed in advance using the above-described drilling device, and the injection tube 30 is installed in the form of being inserted into the formed hole using the above-mentioned injection tube erection device.
- the tip of the injection tube 30 preferably has a shape that is easy to be inserted into the formed hole and is tapered toward the tip.
- the tip portion is provided with an outlet 31 for flowing out the injection material to the pipe wall, which is oriented in the horizontal direction with respect to the ground, and is connected to a cylindrical plug 32 and one end of the plug 32,
- An elastic body 33 that can expand and contract in the length direction of the injection tube 30 is provided inside.
- the plug 32 has an outer wall surface adjacent to the inner wall surface of the injection tube 30 so that no gap is formed.
- the elastic body 33 extends and its position rises.
- the outflow port 31 is blocked as shown in FIG.
- the stopper 32 is lowered, and the outlet 31 is opened as shown in FIG.
- the injected material to be supplied flows out into the surrounding soil as indicated by the arrow.
- a coil spring can be used as the elastic body 33. It is also possible to provide an O-ring between the stopper 32 and the inner wall surface of the injection tube 30 to prevent the injection material from leaking more reliably.
- a rod provided with a monitor at the tip is used as the drilling hole, and after the drilling, the injection tube 30 is inserted and installed in the hole.
- the present invention is not limited to this.
- a monitor used for drilling is attached to the tip of the injection tube 30 and only the drilling device is used.
- the injection tube 30 is inserted and installed at the same time as drilling, and the construction time is shortened and the construction cost is reduced. Can be deleted.
- the monitor can be removed and inspected later when the injection tube 30 is recovered, and then used again.
- the injection pipe 30 having the structure shown in FIG. 3 needs to drill holes while giving vibrations in soils with a high N value such as cobblestone or sand, so that the elastic body 33 moves and the plug 32 is lowered to flow.
- a high N value such as cobblestone or sand
- the outlet 31 opens, the earth and sand flow backward, and the inside is clogged with earth and sand. In this case, it must be lifted to the ground, cleaned, and reinserted, which takes time. Therefore, in the soil having a high N value, the injection tube 30 having the structure shown in FIG. 4 can be employed.
- the injection tube 30 shown in FIG. 4 eliminates the plug 32 and the elastic body 33, and the outlet 31 has a first hole 31a having a first diameter and a second diameter having a diameter larger than the first diameter. It is assumed that the second hole 31b is closed by a lid 34 which is a disc-shaped closing member. As a result, even if the earth and sand flows backward and enters the inside of the injection pipe 30, the lid 34 prevents the injection and the injection material can be pushed out by the injection material and automatically removed from the second hole 31 b.
- a single lid 34 is used, but a double lid 34 may be used so that the degree of sealing is further improved and the backflow can be reliably prevented.
- the inner lid can be a lid made of a plastic resin having a predetermined strength capable of withstanding the pressure of the earth and sand flowing back
- the outer lid can be a lid made of a silicone resin that enhances the sealing performance.
- a drilling member 35 is attached to the tip of the injection tube 30 and the tip is closed.
- FIG. 4 also shows a merge portion 36 where two injection materials merge.
- the injection material injected from the injection tube 30 will be briefly described.
- the soil portion where the sheet pile 10 was present becomes a void. Since there are many fine gaps in the soil, if it remains liquid for a long time, it will penetrate into the soil. In this case, a void is generated again, causing ground subsidence. In order to prevent this, it is preferable that the injection material used in the present invention is immediately gelled so as not to penetrate into the soil after being injected from the injection tube 30.
- the time (gel time) until the injection material loses fluidity and the viscosity rapidly increases is about 20 seconds to 70 seconds. By adjusting to this time, it moves to the void, and after filling the void, it gels and then does not penetrate into the soil and remains in that position, which is preferable.
- the injecting material includes, for example, blast furnace cement type B widely used for general civil engineering and building structures, an accelerator mainly composed of calcium hydroxide, a hardening agent mainly composed of sodium carbonate and sodium aluminate, water, Can be used for the A liquid composed of blast furnace cement type B, accelerator and water, and the B liquid composed of a curing agent and water.
- blast furnace cement type B widely used for general civil engineering and building structures
- an accelerator mainly composed of calcium hydroxide
- a hardening agent mainly composed of sodium carbonate and sodium aluminate
- water can be used for the A liquid composed of blast furnace cement type B, accelerator and water
- the B liquid composed of a curing agent and water.
- a liquid and B liquid gel by mixing in a short time. Gel time can be adjusted by changing these proportions.
- a liquid and B liquid will gelatinize in a short time when mixed, it is desirable to mix just before making it flow into soil.
- the liquid A is an accelerator, blast furnace cement type B and water in a mass ratio of 1:20 to 30:40 to 45, and the liquid B is a curing agent and water in a mass ratio. 1: 15-20.
- the injection tube 30 that enables the A liquid and the B liquid to be mixed immediately before has a structure in which the inside has two passages, a passage 1 through which the A liquid passes and a passage 2 through which the B liquid passes. It can be set as the structure which becomes one channel
- FIG. 5 is a diagram illustrating a position where the injection tube 30 is installed.
- the earth retaining members 40 as U-shaped steel sheet piles are connected so that a plurality of them are continuously arranged in a line, and are embedded in the ground.
- the portion where the earth retaining member 40 was present becomes a void, and the void collapses to cause subsidence and cracks. Therefore, the injection tube 30 is installed and the injection material is embedded in the gap, but the position where the hole 41 is formed in order to install the injection tube 30 is important.
- a predetermined number of the retaining members 40 provided in a row can be used as one block, and can be a position adjacent to or adjacent to the retaining member 40 located in the center of the block.
- the number of earth retaining members 40 constituting one block can be preferably an odd number of 5 or 7, but may be an odd number of 9 or more.
- the position where the hole 41 is formed may be any position as long as the position is adjacent to or close to the earth retaining member 40 located in the center, but the center position of the earth retaining member 40 in the direction in which the earth retaining members 40 are arranged is desirable. .
- the center position adjacent to or adjacent to the concave surface on the back side is more preferable than the convex surface of the earth retaining member 40. Since voids are generated in the direction in which the earth retaining members 40 are arranged, the concave surface can be arranged so that the two outlets 31 of the injection pipe 30 are directed in the direction in which the earth retaining members 40 are arranged. It is because it can be discharged.
- the block is not limited to the odd-numbered earth retaining member 40, and may be an even number.
- the position adjacent to or near the joint 11 to which the two earth retaining members 40 located in the center are connected is defined by the hole 41. It can be a position to form. This is because it is preferable to install the injection tube 30 at a position as close as possible to the earth retaining member 40 in order to efficiently fill the gap.
- the injection pipe 30 is not fixed by welding or the like to the adjacent or adjacent earth retaining member 40.
- the central earth retaining member 40 to which the injection pipe 30 is fixed is withdrawn.
- the resistance of the portion connecting the retaining members is so large that it cannot be pulled out easily. .
- it is easy to cause a mistake that the retaining member to which the injection pipe 30 is fixed is first pulled out even though there is the retaining member 40 to be pulled out in the block.
- FIG. 6 is a flowchart showing the flow of this method.
- This method prepares the injection tube 30, the hole drilling device, the earth retaining member press-drawing machine 20, the injection material, and the like, and starts from step 600.
- step 605 in order to insert the injection pipe 30 by using a drilling device, the five or more connected retaining members 40 are formed as one block and adjacent to or near the retaining member 40 located at the center of the block. Hole 41 is formed. Then, the injection pipe 30 is inserted into the hole 41 and installed using the injection pipe erection device.
- the injection tube 30 concentrates in the gap and the injection material flows into the gap, so that the gap cannot be filled properly. Therefore, it is preferable to embed in the ground.
- the injection pipe 30 is not fixed to the adjacent or neighboring earth retaining member 40 but is free (free).
- step 610 the injection tube 30 and the container containing the injection material are connected via a pump, and the earth retaining member 40 to be extracted can be grasped by the chuck 22 of the earth retaining member press-drawing machine 20 and can be pulled up at any time.
- the pump is activated so that infusion can be started at any time.
- step 615 the lifting of the retaining member 40 to be pulled out is started, and in step 620, the retaining member 40 is pulled up to a certain height.
- step 625 an injection material is injected for a certain period of time.
- Step 620 and step 625 can be performed simultaneously.
- the injection material moves in the direction in which the earth retaining member 40 is pulled out to generate a void, flows into the void, and fills the void. Since the injection material filling the voids gels in a short time and stays in place, it is possible to prevent the occurrence of settlement and cracks.
- step 620 the withdrawal of the earth retaining member 40 is stopped every time it is pulled out, for example, by 500 mm, and in step 625, the injection material is injected for a predetermined time. This time is measured by a timer, and a predetermined amount of injection is realized by injecting for a certain period of time.
- the injection time can be determined by calculating the volume of the earth retaining member 40 for a height of 500 mm and calculating the volume and the capacity of the supply pump.
- step 630 it is determined whether or not the earth retaining member 40 has been pulled out. If not completed, the process returns to Step 610, and the operation of pulling up again to a certain height and filling the gap by injecting the injection material is repeated.
- the process proceeds to step 635, and it is determined whether or not the earth retaining member 40 to be pulled out is present in the block. If there is still, the process returns to Step 610, the earth retaining member pressure drawing machine 20 is moved, the chuck 22 holds the earth retaining member 40 to be extracted next, and the state can be pulled up at any time. At this stage, since the injection tube 30 is still installed, the injection material can be reinjected as necessary. The reinjection can be performed when the earth retaining member 40 is pulled out.
- step 640 the injection tube 30 is pulled out with a crane or the like while injecting the injection material.
- a connecting member for connecting a wire called a U-shaped shackle is attached to a swivel provided in the injection tube 30, the wire is connected to the connecting member, lifted by a crane or the like, and pulled out. Can do.
- the injection tube 30 is checked to see if it can be reused by the operator, and if it can be reused, it is diverted to pull out the earth retaining member in the next block or to be used at other sites.
- step 645 it is determined whether there is a block that has not yet been processed. If it exists, the process returns to step 605 to install the injection tube 30 in the next block. When it does not exist, it progresses to the process 650 and the removal work of the earth retaining member 40 is complete
- the injection amount can be adjusted. In the case of oozing, since the injection amount is large, the injection amount can be reduced by shortening the injection time or reducing the injection flow rate. Whether or not the injection material has oozed out can be detected by a detection means such as a sensor installed on the ground surface. For this reason, in response to detection by the detection means, it is possible to adjust the flow rate of the injection material by changing the set value of the flow rate for the pump which is the supply means of the injection material.
- FIG. 7 details of a method in which one block is composed of five earth retaining members 40, one hole 41 is formed for each block, an injection tube 30 is inserted into the hole 41, and the injection material is filled.
- the injection tube 30 is provided with only one outflow port or in the case of including two outflow ports
- the outflow port is preferably installed in a direction in which a void is formed.
- a hole 41 is formed adjacent to or in the vicinity of the earth retaining member located at the center of the five earth retaining members 40, and the five earth retaining members 40 are sequentially pulled out from one side. Accordingly, as shown in the example of FIG. 7, the earth retaining member 40 is pulled out in the order of FIGS.
- the injection material is a liquid and flows out from the injection tube in a substantially horizontal direction, the injection material flows into the gap generated by the extraction of the earth retaining member 40 and immediately fills the gap.
- the injection material that fills the gap gels after a certain time. In this manner, the voids generated in order from below are filled with the injection material, and even after the earth retaining member 40 is completely pulled out, the voids are filled with the injection material until reaching the ground surface.
- the earth retaining member 40 adjacent to the extracted earth retaining member 40 is similarly extracted, and the gap is filled in the same manner. This is repeated, and the five earth retaining members 40 provided in series are sequentially pulled out from one side, filled with an injection material, and the removal operation of the block is completed. After completion, an injection material can be injected as needed from the injection pipe 30 that is still installed in the ground. The injection tube 30 is withdrawn and inspected before starting construction on the next block, and reused for construction on the next block if possible.
- the method of the present invention can prevent the settlement of the ground and the occurrence of cracks, reduce the number of pipes 30 to be installed, reduce the time required to remove the retaining members, and reduce the construction cost. Can be reduced. Since the injection tube 30 is not fixed to the earth retaining member 40 by welding or the like, even if the earth retaining member 40 is bent like a bow at the time of pulling out, the injection tube 30 can be pulled out without bending like a bow and reused. Can do.
- the injection material can be filled in the voids originally existing in the soil, the adhesion with the surrounding ground can be improved.
- the method of the present invention since it is not necessary to press-fit the injection material, it is possible to prevent waste of the injection material, and it is not necessary to install an expensive pump for supplying at a high pressure.
- whether or not the gap is appropriately filled can be determined by checking whether or not the injection material oozes out from the ground surface, and the gap filling when the earth retaining member 40 is pulled out is surely performed. It is possible to reliably prevent the occurrence of settlement and cracks, and to reduce the cost of extra injection material. And, since the earth retaining member 40 can be reused, the production amount of the earth retaining member 40 can be reduced, the construction cost of the earth retaining work can be reduced, and with the decrease in the production amount of the earth retaining member 40, Generation of greenhouse gases can be suppressed.
- the surface may not ooze out.
- the amount of ground subsidence is measured with a subsidence meter and the inclination of the ground is measured with an inclinometer. Judgment can be made. Specifically, the determination can be made based on whether or not the subsidence amount and the slope are within the set primary management value range.
- the preparation is simple, and an engine unit, a carrier car, a hydraulic hose, etc. are not required as in the earth retaining member press pulling machine 20, and the pulled sheet pile can be loaded on the truck as it is. Therefore, even if the construction site is small, construction is possible and the apparatus and equipment are not scattered, so that the work can be performed safely.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
Claims (5)
- 連設された5以上の土留部材を1つのブロックとし、前記ブロックの中央に位置する土留部材に隣接または近隣して注入管を挿入し、該土留部材に固定することなく地盤内に設置する工程と、
前記ブロック内の土留部材を1つずつ順に一定高さ引き上げる毎に前記注入管から注入材を流出させて、前記地盤内に発生した空隙に該注入材を流入させ、該空隙を埋める工程とを含む、土留部材の撤去方法。 - 前記地盤内に設置する工程では、先端に土壌を削孔するための削孔部材を備える前記注入管を使用して、前記地盤を削孔しながら該注入管を挿入して該地盤内に設置する、請求項1に記載の土留部材の撤去方法。
- 前記注入管は、第1の径を有する第1の穴と、前記第1の穴に連続する前記第1の径より大きい径を有する第2の穴とから構成され、前記第2の穴を閉鎖部材で閉鎖したものであり、
前記空隙を埋める工程では、前記注入材で前記閉鎖部材を前記第2の穴から周囲の地盤へ向けて押し出した後に、該注入材を流出させる、請求項1または2に記載の土留部材の撤去方法。 - 前記空隙を埋める工程では、土留部材圧引抜機を使用して、前記ブロックの一方から順に土留部材を引き上げ、またはクレーンを使用して、前記ブロックの一方から順に、もしくは前記ブロック内の前記注入管に最も遠い土留部材から順に引き上げる、請求項1~3のいずれか1項に記載の土留部材の撤去方法。
- 前記ブロック内の前記5以上の土留部材を全て引き抜いた後、前記地盤内に設置した前記注入管を引き抜く工程をさらに含む、請求項1~4のいずれか1項に記載の土留部材の撤去方法。
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KR1020177032887A KR20180014693A (ko) | 2015-05-29 | 2016-01-28 | 방토 부재의 철거 방법 |
SG11201709067TA SG11201709067TA (en) | 2015-05-29 | 2016-01-28 | Removal method for earth-retaining member |
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JP2015109876A JP6615494B2 (ja) | 2015-05-29 | 2015-05-29 | 土留部材の撤去方法 |
JP2015-109876 | 2015-05-29 |
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KR (1) | KR20180014693A (ja) |
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JP2011236637A (ja) * | 2010-05-10 | 2011-11-24 | Shinichi Yamashita | 土留部材撤去方法およびこれを用いた斜面強化ブロック設置方法 |
JP2013036280A (ja) * | 2011-08-10 | 2013-02-21 | Shinichi Yamashita | 土留部材の撤去方法 |
JP2013159960A (ja) * | 2012-02-06 | 2013-08-19 | Takenaka Komuten Co Ltd | シートパイル引抜部充填方法 |
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JPS57108319A (en) * | 1980-12-25 | 1982-07-06 | Giken Seisakusho:Kk | Driving and drawing of steel sheet pile |
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- 2016-01-28 KR KR1020177032887A patent/KR20180014693A/ko not_active IP Right Cessation
- 2016-01-28 SG SG11201709067TA patent/SG11201709067TA/en unknown
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JPS57151722A (en) * | 1981-03-11 | 1982-09-18 | Nippon Telegr & Teleph Corp <Ntt> | Filling work for space formed after drawing out sheet pile |
JPS61211418A (ja) * | 1985-03-15 | 1986-09-19 | Shigeharu Arima | 薬液注入工法 |
JPH0476110A (ja) * | 1990-07-19 | 1992-03-10 | Suiken Gurauto Kk | 薬液注入工法 |
JPH07252822A (ja) * | 1994-10-03 | 1995-10-03 | Kyokado Eng Co Ltd | 地盤注入工法 |
JPH11182172A (ja) * | 1997-12-25 | 1999-07-06 | Tokai Rubber Ind Ltd | 地山固結工法 |
JP2005290963A (ja) * | 2004-03-09 | 2005-10-20 | Shinichi Yamashita | 土留め部材、硬化剤注入管、土留め工事プラントおよび土留め工法 |
JP2011236637A (ja) * | 2010-05-10 | 2011-11-24 | Shinichi Yamashita | 土留部材撤去方法およびこれを用いた斜面強化ブロック設置方法 |
JP2013036280A (ja) * | 2011-08-10 | 2013-02-21 | Shinichi Yamashita | 土留部材の撤去方法 |
JP2013159960A (ja) * | 2012-02-06 | 2013-08-19 | Takenaka Komuten Co Ltd | シートパイル引抜部充填方法 |
Also Published As
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SG11201709067TA (en) | 2017-12-28 |
JP6615494B2 (ja) | 2019-12-04 |
KR20180014693A (ko) | 2018-02-09 |
JP2016223148A (ja) | 2016-12-28 |
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