KR20200029078A - Construction method for earth self-retaining wall using reinforcing member and SCW construction method - Google Patents

Abstract

The present invention relates to a construction method for a self-retaining wall using a reinforcing member and an SCW construction method, capable of performing deep excavation even if an embedded length is short in a section with a narrow property line in a downtown area. The construction method for a self-retaining wall comprises: a step of manufacturing a cast-in-place concrete pile and a cast-in-place concrete pile including a double I-beam by embedding the double I-beam after boring multiple holes on the ground and spraying and mixing cement at same time; a step of partially excavating only position of the cast-in-place concrete pile including the double I-beam; and a step of manufacturing a pile for a self-retaining wall by connecting a horizontal reinforcing member using a partial excavation unit formed by partial excavation. The construction method for a self-retaining wall can improve constructability and perform the deep excavation even if the cast-in-place concrete pile including the double I-beam is not deeply embedded and the embedded length of the cast-in-place concrete pile including the double I-beam is short. A vertical resistance reinforcing pile and a small inclination reinforcing member connecting a horizontal reinforcing member connected to the cast-in-place concrete are formed. So, an additional support force corresponding to active earth pressure is formed. Therefore, even if the embedded length for forming passive earth pressure is short, the construction for a retaining wall can be performed. Moreover, the construction method for a self-retaining wall using the reinforcing member and the SCW construction method can perform the deep excavation even if the ground is the soft ground.

Description

Construction method for earth self-retaining wall using reinforcing member and SCW construction method}

The present invention relates to a self-supporting earth retaining method using a reinforcement member and an SCW method that can dig deeply even when the root boundary is short in a narrow section of a downtown boundary line of downtown.

The mud construction method is a temporary structure that prevents surrounding soil or groundwater from entering the excavation ground when installing a direct foundation, pile foundation, or underground structure.

Temporary facilities are used during construction and are demolished after completion of construction. Temporarily neglected, which is temporarily used to construct the main body structure. Recently, the construction has become large and complicated, and the cost, construction volume, and the proportion of air occupied by the entire construction. It has become very important because it has grown.

The mud construction method consists of a mud wall supporting the surrounding soil and a support material supporting the mud wall, and can be classified into various types according to the type of the mud wall and the support material.

Typical construction methods for mudguards include the H beam and earth plate construction methods, sheet pile construction methods, main-type mud construction methods, and slurry wall construction methods.

The H-beam and earth plate construction method is a method in which the H-beam and the earth plate are installed at regular intervals, and the earth plate is installed between the H-beams at the same time as excavation, and a mud wall is installed to support the mud wall by installing a strut brace or anchor. Although the air is short, there is a disadvantage in that it is necessary to reinforce grouting and take measures against the heaving phenomenon due to poor water resistance.

The sheet pile method is a method of continuously connecting steel piles to form a retaining wall, which is suitable for soft grounds due to its high degree of water repellency.

The main heating type is a method of forming concrete retaining walls by successively placing concrete piles on-site. It is a low-noise method that reinforces the retaining walls by placing reinforcing bars and H beams inside the piles, providing excellent water resistance and high wall rigidity. Although there are few surrounding settlements, there are disadvantages that the air is relatively long and the construction cost is increased.

On the other hand, in the main heating method, the CIP method of filling the pre-assembled reinforcing bars and coarse aggregates in the excavated ground and injecting mortar, constructs piles in the field, mix the soil in the excavation hole with cement pool, and press H beam or rebar There is a soil cement method.

The slurry wall method is a method of excavating while preventing the collapse of the ground using a stabilizer when excavating the ground, inserting a rebar net therein and pouring concrete to continuously install the concrete retaining wall. This method is suitable for downtown construction considering the safety of construction, pollution problems, and the influence of adjacent buildings.

On the other hand, the above-mentioned mud construction method is forced to apply a limited construction method due to the adjacent structures (roads, buildings, etc.) when excavating downtown, and the typical urban excavation method uses H beam as the main material and types it in the planned location. A method of excavating and descending is generally used.

At this time, as a method of forming a wall between the H beams, as described above, a wooden board (H beam and earth plate construction method) or a field pile pile, that is, a soil cement and a concrete pile construction method, is used as a temporary wall.

In the case of using cast-in-place piles, concrete is poured on top of it to fix the top by integrating the H-beam and the top of the cast-in-place pile, which is called a cap beam.

In the case of the related art, the cap beam was used only to reduce the horizontal line of the H beam and the upper displacement of the cast-in-place concrete pile.

That is, it was not used as a role as a belt supporting the wall during excavation.

Therefore, in order to excavate, it is necessary to separately install a first-stage girdle close to the lower portion, which leads to an uneconomical construction.

In particular, all of the above-described construction methods have a problem in that they cannot be actually constructed by earth pressure in a narrow section of the downtown boundary.

Moreover, in order to cope with the dynamic earth pressure generated in the pile, the ground near the ground must be about 1.5 to 2.5 times more than the exposed pile. In the case of a situation to do, the work was very difficult in a small space.

In order to solve the above problems, various types of mudguard methods have been proposed in the past.

As an example, there is a two-row self-supporting earth retaining method such as Korean Patent Registration No. 10-1692541 (hereinafter referred to as 'patent document 1').

The two-row self-supporting retaining method as in Patent Document 1 can increase the bearing capacity of the pile by connecting the front and rear row piles and then connecting them.

In addition, there is a construction method of installing a raker in a two-row self-supporting pile construction method, such as Korean Patent Registration No. 10-0964995 (hereinafter referred to as 'patent document 2').

The construction method as in Patent Document 2 is made to increase the bearing capacity of the retaining wall by placing the raker in an inclined space during the construction method of Patent Document 1 described above.

(Patent Document 1) KR10-1692541 B1 Two-row self-supporting mud construction heat transfer, post heat pile connection structure

(Patent Document 2) KR10-0964995 Two-row thumb pile earthing method using B1 raker

However, the two-row self-supporting earth retaining method as in Patent Document 1 can be very useful in a narrow section of the land boundary line by connecting the front and back piles after connecting the front and back piles, but the construction efficiency is reduced by double-inserting the pile There was a problem.

In addition, the above-mentioned Patent Document 2 was able to increase the bearing capacity of the retaining wall by additionally installing a raker in the configuration of Patent Document 1, but the above-described raker must be configured to a size sufficient to form a sufficient supporting force, so the worker A. There was a problem in that the work space was very narrow and the workability was deteriorated during the construction of a building wall or foundation.

The self-supporting earth retaining method using the reinforcing member and the SCW method according to the present invention for solving the above problems is superior in torsional strength and buckling strength due to a higher cross-section coefficient than the existing H beam, even when the land boundary line is insufficient, and is deformed by earth pressure The purpose of the present invention is to provide a self-supporting retaining method using a SCW method and a reinforcing member capable of excavating at a deep depth by using a double eye beam type self-supporting retaining file that does not occur.

Another object of the present invention is a site-in-place type mudguard file including a double eye beam produced by combining a horizontal reinforcement member horizontally extending in a direction in which a trench space is formed in a field pouring concrete file containing a double eye beam. Even if the length of the near-entrance section, which is a non-exposed section for forming the passive earth pressure corresponding to the main earth pressure, is short, sufficient support force to cope with the main earth pressure is formed, so that deep-digging can be performed. The purpose of this is to improve the supportability of the double eye beam by further improving the supportability when the horizontal reinforcement member is combined with the double eye beam.

Another object of the present invention is a double eye beam self-supporting type of retaining file, and a horizontal reinforcing member is combined with a double eye beam in a step of manufacturing a pile, and then a small sized inclined reinforcing member connecting the double eye beam and the horizontal reinforcing member is combined to expose it by trenching The additional support force corresponding to the main earth pressure generated in the exposed section of the double eye beam is formed, so that even if the length of the near entrance, which is the non-exposed section of the double eye beam for passive earth pressure, is shortened, it is possible to sufficiently construct the soil. The purpose of this is to prevent structural deformation of the double eye beam and ensure a sufficient working space.

Another object of the present invention is the length of the near-entry, which is a non-exposed section of the double-eye beam for passive earth pressure by combining a vertical resistance reinforcement pile, which is inserted into the ground of the trench at the stage of manufacturing a file for a double-eye beam self-supporting earthenware, into a horizontal reinforcement member. Even if it is formed shortly, it is possible to sufficiently carry out the construction of a mud, as well as to make it possible to perform digging at a deep depth even in the case of soft ground.

According to the present invention, even when the ground boundary line is insufficient, the torsional strength and buckling strength are higher due to the higher cross-section coefficient than the existing H-beam, so it is not deeply deformed by using the double eye beam type self-supporting pile which does not cause deformation due to earth pressure. Can be performed.

In addition, the horizontal reinforcement member horizontally extended in the direction in which the trench space was formed is combined with a cast-in-place concrete pile containing a double eye beam to respond to the main earth pressure by a cast-in-place type mudguard file containing a double eye beam. Even if the length of the near-entry section, which is a non-exposed section for forming the passive earth pressure, is short, sufficient support force to cope with the main earth pressure is formed, so that deep-digging can be performed. In particular, it is horizontal to the double eye beam at a position contacting the ground. When joining the reinforcing member, the supporting force of the double eye beam can be further improved to improve the workability.

Then, in the step of manufacturing the double eye beam self-supporting retaining file, after combining the horizontal reinforcing member with the double eye beam, combine the double eye beam and the small size inclined reinforcing member that connects the horizontal reinforcing member. The additional support force corresponding to the main earth pressure generated in the exposed section is formed, so that even if the length of the near entrance, which is the non-exposed section of the double eye beam for passive earth pressure, is shortened, it is possible to sufficiently construct the earth and construct the structure of the double eye beam. Deformation prevention and sufficient working space can be secured.

In addition, it is sufficient to shorten the length of the near entrance, which is a non-exposed section of the double eye beam for forming passive earth pressure by combining the vertical resistance reinforcement pile, which is inserted into the ground to be excavated, in the step of manufacturing the double eye beam self-supporting soil retaining pile to the horizontal reinforcement member. It is a useful invention that can be used to carry out the construction of a mud, as well as to dig a deep depth even in the case of soft ground.

Figure 1 is a block diagram showing the sequence of the self-supporting earthing method using the reinforcement member and the SCW method according to the present invention.
Figure 2 is a perspective view showing a cast-in-place type mudguard file containing a double eye beam according to the present invention.
Figure 3 is a state diagram showing a cast-in-place concrete file according to the present invention and a manufacturing step of a cast-in-place concrete file including a double eye beam.
Figure 4 is a state diagram showing a partial excavation step according to the present invention.
Figure 5 is a state diagram showing a self-supporting type of file for mudguard.
6 is a state diagram showing a state in which the inclined reinforcement member is coupled in FIG. 5.
7 is a state diagram illustrating a state in which the vertical resistance reinforcement pile is combined in FIG. 6.
8 is a state diagram showing another embodiment of combining the vertical resistance reinforcement pile in FIG.
Figure 9 is a state diagram showing the operating state of the cast-in-place type mudguard file containing a double eye beam according to the present invention.

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

The present invention forms a plurality of perforated holes with overlapping perforations, as shown in FIG. 1, and simultaneously sprays and stirs the cement, and cure the double eye beam after advancing a double eye beam into any one of the perforated holes. The construction stage construction file and the construction stage of the cast-in-place concrete file including the double eye beam are fabricated so that the construction site concrete pile and the double-eye beam concrete double eye beam are continuously formed. The partial excavation step of partially excavating only the location of the on-site concrete file containing the double eye beam and the site of the on-site concrete pile file including the double eye beam to the planned trench surface in the manufacturing step of the on-site pouring concrete file and the partial excavation step From the cast-in-place concrete file that includes each double eye beam exposed through After forming the first incision surface so that the double eye beam of the eye is exposed to the outside, the double eye beam is included by combining the horizontal reinforcing member extending in the digging space direction to generate resistance due to the main earth pressure in the exposed double eye beam. It may include a self-supporting type of mud pile manufacturing step of manufacturing a cast-in-place type mud pile.

Herein, the double eye beam in the production step of the cast-in-place concrete file and the double-eye beam containing the double-eye beam is made of a cross-section of a third shape by combining the third and fourth plates between the first and second plates facing each other. It may be configured to extend in the vertical direction.

In addition, the first cut surface of the cast-in-place concrete pile including the double eye beam may be formed at a position where the lower surface of the horizontal reinforcing member can be in contact with the trench surface in the step of manufacturing the self-supporting pile.

Then, in the step of manufacturing the self-supporting mudguard file, a second incision surface is further formed so that the double eye beam is exposed to the upper side of the first incision surface formed in the cast-in-place concrete pile including the double eye beam. The inclined reinforcement member which is inclinedly coupled to the double eye beam exposed by the horizontal reinforcement member may be further combined.

In addition, in the step of manufacturing the self-supporting pile, the horizontal reinforcing member may further include a vertical resistance reinforcement pile that is inserted into the ground.

In particular, in the step of manufacturing the self-supporting pile, the vertical resistance reinforcement pile is inserted into the ground to be drilled before the horizontal reinforcement member is combined with the cast-in-place concrete containing the double eye beam, and then the horizontal reinforcement member includes the double eye beam. It can also be combined with the cast-in-place concrete pile and the vertical resistance reinforcement pile, and after the horizontal reinforcement member is combined with the cast-in-place concrete pile containing the double eye beam, the vertical resistance reinforcement pile can be joined to the end of the horizontal reinforcement member. It is also possible to combine vertical resistance reinforcement piles after entering the ground.

1. File for cast-in-place type mudguard with double eye beam

Looking at the cast-in-place type mudguard file 100 including a double eye beam is as follows.

The cast-in-place type pile file 100 with a double eye beam in the present invention is largely composed of a cast-in-place concrete pile 10 with a double eye beam and a horizontal reinforcement member 20.

The cast-in-place concrete pile 10 including the double eye beam is a structure formed by placing and curing the concrete 12 after inserting the double eye beam 11 into the excavated space excavated in the field.

This, the cast-in-place concrete file 10 including a double eye beam is first cut surface 13 cut through a portion of the concrete 12 of the exposed section A1 exposed to the outside after some digging as shown in FIG. 2. ), A part of the inner double eye beam 11 is exposed.

Here, the double eye beam 11 is a third, fourth plate (11c, 11d) is coupled between the first and second plates (11a, 11b), the cross-sectional shape is made of ㅍ characters and extends in the vertical direction to construct a soil film It is made of a high-strength steel material with a configuration incorporating the ground (G1).

Next, the horizontal reinforcing member 20 is exposed by the first incision surface 13 of the cast-in-place concrete pile 10 that includes a double eye beam that is inserted under the ground G1 during construction of the soil and is subjected to main earth pressure. It is a configuration for forming a supporting force on the cast-in-place concrete pile 10 including a double eye beam by being coupled to the double eye beam 11.

Here, the horizontal reinforcing member 20 extends in the horizontal direction in which the trench space O is formed, but the horizontal extension length includes a depth of the trench and a double eye beam inserted under the trench ground G2. It will depend on the depth of pour of the pour concrete pile 10.

In particular, the material of the horizontal reinforcement member 20 is preferably made of a steel material.

Meanwhile, in the present invention, the inclined reinforcement member 30 may be further included.

The inclined reinforcing member 30 is configured to be inclined between the cast-in-place concrete pile 10 including a double eye beam extending in the vertical direction and the horizontal reinforcing member 20 extending in the vertical direction to connect them.

More specifically, among the cast-in-place concrete piles 10 that include a double eye beam extending in the vertical direction, the exposed section A1 exposed to the trench ground G2 and not horizontally extending into the trench ground G2 and the horizontal reinforcement member extending in the horizontal direction It is a structure for connecting and supporting (20).

In the present invention, the first incision surface formed in the cast-in-place concrete pile 10 including the double eye beam to couple the above-described inclined reinforcement member 30 to the cast-in-place concrete pile 10 including the double eye beam On the upper side of (13), a second incision surface (14) identical to the first incision surface (13) is formed to form a double eye beam (11) and a horizontal reinforcement member (20) exposed by the second incision surface (14). It is configured to be fixed to the inclined reinforcement member 30.

Here, the inclination angle of the inclined reinforcing member 30 is the depth of intrusion and the depth of incidence of the on-site concrete pile 10 including the double eye beam in the ground (G2) (hereinafter referred to as 'near position') It depends on).

In addition, the present invention may be configured to further include a vertical resistance reinforcement pile (40).

More specifically, it is a configuration for forming a reaction force on the horizontal reinforcing member 20 by coupling to the opposite side of the position where the cast-in-place concrete pile 10 including the double eye beam is coupled.

The vertical resistance reinforcement pile 40 may be coupled to the lower side of the horizontal reinforcement member 20, or may be coupled to the side of the horizontal reinforcement member 20.

Here, the above-described horizontal reinforcing member 20, the inclined reinforcing member 30 and the vertical resistance reinforcing pile 40 are formed in the form of a double eye beam, but are not limited thereto and may have a cross section of various shapes, and horizontal reinforcing. The combination of the member 20, the inclined reinforcing member 30, and the vertical resistance reinforcement pile 40 may be combined using a fastening means such as welding or a bolt / nut.

2. Self-supporting earthing method

The self-supporting earthing method using the reinforcing member and the SCW method according to the present invention includes a field casting concrete file and a double excavation site construction concrete file manufacturing step and a partial excavation step and a self-supporting earthing file manufacturing step similar to the SCW method. It is made, and the detailed process is as follows.

 end. On-site pouring concrete file and on-site pouring concrete file production steps

This step is a step for simultaneously forming the on-site concrete pile file C and the on-site concrete pile file 10 including a double eye beam while forming a perforation hole H on the ground.

That is, in this step, a plurality of perforation holes H formed by overlapping the perforations are formed.

The perforated hole (H) is formed through a multi-axis auger device, and a plurality of perforated holes (H) are formed at a time, and cement is sprayed to simultaneously agitate the soil and cement.

The operation of the punching hole (H) through the multi-axis auger as described above is a constant with the first punched hole (H) after drilling the punched hole (H) using a multi-axis auger as shown in Figure 3 (a) A second plurality of perforation holes (H) are formed at a spaced apart position, and a double eye beam (11) is provided at any one of the perforation holes (H) as shown in FIG. ), And the operation of inserting a double eye beam 11 together with the formation of a perforated hole H, cement spraying and stirring using a multi-axis auger in a space spaced apart from each other as shown in FIG. 3 (c). This step can be completed by repeatedly performing the construction to form a cast-in-place concrete pile C and a cast-in-place concrete pile 10 including a double eye beam.

I. Partial excavation stage

This step is a step of forming a partial excavation part E by performing excavation only at a location where the cast-in-place concrete file 10 including the double eye beam produced in FIG. 4 is manufactured.

That is, this step is a step for producing a pile 100 for a cast-in-place type mudguard that includes a double eye beam as described above, and a site in which a double eye beam is included at an excavation depth equal to the depth of digging planned by the first operator. This is a step to secure the space for the construction of the cast-in-place type mudguard file 100 including the double eye beam and prevent the collapse of the excavation space by partially excavating the location where the pour concrete pile 10 is produced.

All. Self-supporting mudguard file production step

This step combines the horizontal reinforcement member 20 to the cast-in-place concrete pile 10 including the double eye beam through the partial excavation part E formed in the previously performed partial excavation step to include the double eye beam. This is a step of manufacturing a pour type mudguard file 100.

Here, the horizontal reinforcing member 20 in the present invention is a fastening means (not shown in the figure) to the cast-in-place concrete pile 10 including a double eye beam at a position in contact with the trench ground G2 as shown in FIG. 5. Alternatively, it is combined by welding or the like.

Particularly, in this step, as shown in FIG. 6, a double eye beam is further included by further combining an inclined reinforcing member 30 that is inclinedly coupled between the cast-in-place concrete pile 10 including the double eye beam and the horizontal reinforcing member 20. It is also possible to manufacture the pile 100 for the cast-in-place type.

To this end, in the present invention, the second incision surface 14, which is the same as the first incision surface 13, is formed above the first incision surface 13 formed in the cast-in-place concrete pile 10 including the double eye beam, thereby forming The inclined reinforcing member 30 may be combined in a state in which the double eye beam 11 is exposed.

In addition, as shown in Figure 7, the horizontal reinforcing member 20 further combines a vertical resistance reinforcement pile 40, which is inserted into the ground (G2) of the trench, so that the pile 100 for the cast-in-place type mudguard with a double eye beam is included. It can also be produced.

Here, the above-mentioned vertical resistance reinforcement pile 40 breaks the vertical resistance reinforcement pile 40 before combining the horizontal reinforcement member 20 to the cast-in-place concrete pile 10 including the double eye beam ground (G2). It may be combined in the state of being inserted in the, and after the horizontal reinforcement member 20 is coupled to the cast-in-place concrete pile 10 including the double eye beam as shown in FIG. 8, the vertical resistance is reinforced at a position adjacent to the horizontal reinforcement member 20. After the pile 40 is inserted, the horizontal reinforcement member 20 and the fastening means (not shown in the drawings) or welding may be used to connect them.

The present invention can complete the construction by performing a digging operation after the step of manufacturing the self-supporting mudguard file.

On the other hand, looking at the operation of the present invention,

The present invention is a construction method using a pile pour-type mudguard file 100 with a double eye beam as a construction method for a construction site with a double eye beam that constitutes a pile pour type mud file 100 with a double eye beam. The pile 10 is manufactured by puncturing and curing the concrete 12 after drilling of the ground G1 and incorporating the double eye beam 11 for the construction of the mudguard.

At this time, the self-supporting soil retaining pile file 100 using the cast-in-place concrete file including the double eye beam according to the present invention is the third and fourth plates 11c and 11d between the first and second plates 11a and 11b. This is combined to form a cast-in-place concrete pile 10 including a double eye beam using a double eye beam 11 having a cross-section.

Accordingly, the double eye beam 11 has a high cross-section coefficient than the conventional H beam even when the ground boundary line is insufficient, and thus has excellent torsional strength and buckling strength, so that it is possible to obtain an effect capable of breaking through to a deep depth.

On the other hand, the on-site pouring concrete file 10 including the double eye beam is exposed to the outside from the ground (G1) to the ground (G2) as shown in Figure 9 (A1), and the ground ( G2) consists of a non-exposure section (A2), which is near to the position where the lower end of the cast-in-place concrete pile 10 with a double eye beam is formed, and in the case of the exposure section (A1), a double eye beam is included. The on-site concrete pile 10 expands due to the volume change of the soil in the backfill, resulting in the main earth pressure (acive earth preussure) based on the digging ground (G2), and the non-exposed section (A2) is passive Passive earth pressure is generated.

In the present invention, by forming a horizontal reinforcing member 20 on the cast-in-place concrete pile 10 including a double eye beam exposed after construction for the trench space O, manual earth pressure formation corresponding to the main earth pressure as described above is formed. Even if the length of the non-exposed section (A2), which is a nearby location, is short, the exposed section (A1) of the cast-in-place concrete pile 10 including a double eye beam can form a supporting force capable of sufficiently responding to the main earth pressure, while the double eye is formed. It is possible to obtain an effect of preventing deformation of the cast-in-place concrete file 10 including the beam.

That is, when the main earth pressure generated as shown in FIG. 9 is generated, the force corresponds only to the passive earth pressure generated in the non-exposed section A2, which is the near position, but in the normal case, the non-exposed section that is near the exposed section (A1) ( The ratio of A2) should be 1: 1.5 ∼ 2.5, so if the depth of the trench is to be deeply formed, the non-exposed section (A2) should also be relatively deeper. It is difficult to form the phosphorus non-exposed section (A2) deeper, so it is difficult to form the depth of the trench.

Thus, the present invention is a horizontal reinforcing member 20 disposed to abut against the ground (G2) of the trench is extended in a direction capable of resisting the main earth pressure generated in the cast-in-place concrete pile 10 containing a double eye beam When the main earth pressure is generated in the cast-in-place concrete pile 10 including the double eye beam, the reaction force ① in the horizontal reinforcing member 20 occurs as shown in FIG. 9 and the double cast beam includes the cast-in-place concrete. Because it supports the pile 10, it is horizontal even if the length of the passive earth pressure, that is, the length of the non-exposure section A2, which is near to the exposure section (A1) of the cast-in-place concrete pile 10 including the double eye beam, is short. By the support force of the reinforcing member 20, it is possible to obtain an effect that enables the construction of a trench to a deep depth.

In particular, by the action of the horizontal reinforcing member 20, even if there is no existing raker or earth anchor, a sufficient supporting force is formed, so that it is possible to obtain an effect that enables construction to be dug to a deep depth.

In addition, the above-mentioned support force acts to prevent deformation of the cast-in-place concrete pile 10 including the double eye beam in the main earth pressure.

On the other hand, in the present invention, the inclined reinforcement member 30 for connecting the double eye beam 10 and the horizontal reinforcement member 20 is further included.

The inclined reinforcing member 30 has an additional supporting force in addition to the force supporting the cast-in-place concrete pile 10 including a double eye beam by the horizontal reinforcing member 20, and furthermore, horizontal reinforcing as shown in FIG. Since the reaction force (②) at a position different from the member 20 supports the cast-in-place concrete pile 10 including the double eye beam, it is possible to prevent structural deformation of the double eye beam 10 due to the supporting force as well as the dynamic earth pressure. You can also get the effect you can.

In particular, the above-described inclined reinforcing member 30 is made of a structure that connects the on-site cast concrete pile 10 and the horizontal reinforcing member 20 including a double eye beam, so that it is sufficient even if it is formed smaller than the size of a conventional raker. Since it forms a supporting force, it is possible to sufficiently secure a working space when constructing a building wall or a floor foundation.

In addition, in the present invention, the vertical resistance reinforcement pile 40 may be further coupled to the lower side of the opposite side of the horizontal reinforcement member 20 combined with the double eye beam 10.

The vertical resistance reinforcement pile 40 is a configuration that is inserted in the downward direction from the trench ground (G2), as shown in Figure 9, the reaction force (③) in the vertical resistance reinforcement pile 40 supports the horizontal reinforcement member 20 Because of this, it is possible to obtain the effect of the double pile, and even when the ground is soft, it increases the supporting force, so that it is possible to perform digging at a deep depth when constructing the soil.

In particular, the above-described vertical resistance reinforcement pile 40 can be coupled to the lower side or side of the horizontal reinforcement member 20, when coupled to the lower side can obtain a greater reaction force, when coupled to the side of the construction Convenience can be improved.

Although the above-described embodiment is described with respect to the most preferred example of the present invention, it is not limited to the above-described embodiment, and various modifications are possible without departing from the technical spirit of the present invention. It is obvious to the engineers.

C: Cast-in-place concrete file H: Drilling hole
G1: Ground G2: Digging Ground O: Digging Space
100: file for cast-in-place type mudguard with double eye beam
10: Cast-in-place concrete file with double eye beam
11: double eye beam
11a: 1st edition 11b: 2nd edition 11c: 3rd edition 11d: 4th edition
12: concrete 13: first cut surface 14: second cut surface
A1: Exposure section A2: Non-exposure section
20: horizontal reinforcement member
30: Inclined reinforcement member
40: vertical resistance reinforcement pile

Claims (7)

The perforated parts overlap with each other to form a plurality of perforated holes, and at the same time spray and agitate the cement, insert a double eye beam into any one of the plurality of perforated holes, and then cure to cure the cast-in-place concrete pile and double eye A cast-in-place concrete file for producing a continuous cast-in-place concrete file including a double-eye beam formed with concrete on the outside of the beam and a cast-in-place concrete pile manufacturing process including the double eye beam;
A partial excavation step of partially excavating only the location of the cast-in-place concrete file including the double-eye beam produced in the manufacturing process of the cast-in-place concrete file and the double-eye beam to the planned trench surface;
In the field pouring concrete pile including each double eye beam exposed through the partial excavation step, a first incision surface is formed so that the inside double eye beam is exposed to the outside, and the resistance due to the dynamic earth pressure to the exposed double eye beam Reinforcing member characterized in that it comprises; and a self-supporting mud pile file manufacturing step of manufacturing a pile for the construction of a cast-in-place type mud containing a double eye beam by combining a horizontal reinforcing member extending in a digging space direction so that this occurs. Freestanding earth retaining method using SCW method.
The method of claim 1, wherein the double eye beam in the manufacturing step of the cast-in-place concrete file and the double-eye beam includes the third and fourth plates combined with the first and second plates facing each other. A self-supporting earth retaining method using a reinforcing member and SCW method, which is composed of a cross section but extends vertically.
The method of claim 1, wherein the first cut surface of the cast-in-place concrete pile including a double eye beam is formed in a position where the lower surface of the horizontal reinforcement member can contact the trench surface in the step of manufacturing the self-supporting pile. A self-supporting earthenware construction method using a reinforcement member and SCW method that has characteristics.
According to claim 1, After forming a second incision surface so that the double eye beam is exposed to the upper side of the first incision surface formed on the cast-in-place concrete pile containing the double eye beam in the self-supporting pile fabrication step, A self-supporting earth retaining method using a reinforcing member and an SCW method, which is characterized by further combining a double eye beam exposed by the second incision surface and an inclined reinforcing member that is inclinedly coupled to the horizontal reinforcing member.
The method of claim 1, wherein the self-supporting earthing method using the reinforcement member and SCW method, characterized in that the vertical reinforcing pile is further coupled to the horizontal ground reinforcement member in the step of manufacturing the self-supporting earthing pile.
According to claim 5, In the step of manufacturing the self-supporting pile, the vertical resistance reinforcement pile is inserted into the ground to be drilled before the horizontal reinforcement member is coupled to the cast-in-place concrete containing the double eye beam, and then the horizontal reinforcement member is double-eyed. A self-supporting earth retaining method using a SCW method and a reinforcing member characterized in that it is combined with a cast-in-place concrete pile including a beam and a vertical resistance reinforced pile.
According to claim 5, In the step of manufacturing the self-supporting pile for vertical resistance reinforcement piles are combined with a horizontal reinforcement member to a cast-in-place concrete pile containing a double eye beam, and then the vertical resistance reinforcement pile is coupled to the end of the horizontal reinforcement member. A self-supporting earth retaining method using a SCW method and a reinforcing member characterized by joining a vertical resistance reinforcement pile after entering the ground of a trench where possible.

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