JP2002038885A - Driving bolt for injecting repairing material into foundation structure and repairing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving bolt capable of injecting a repairing material from the root of the backside of a foundation structure. SOLUTION: The driving bolt 1 for injecting a repairing material is driven into a foundation structure so as to inject a repairing material for cutoff or reinforcement from the one side to the other of the foundation structure. The driving bolt 1 is provided with a hollow cylindrical bolt body 11 inside which a repairing material passage 21 having a repairing material injection port 22 at the base end side and a repairing material discharge port 23 at the head end side is formed, a tapered-off head part 12 formed at the head end side of the bolt body 11, non-return springs 14 which prevent the bolt body 11 from coming off from the foundation structure in the state that the repairing material discharge port 23 is situated at the other side of the foundation structure. The repairing material is injected at the base end side of the driving bolt 1 after the driving bolt 1 is driven into the foundation structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to injection of a repair material for waterproofing or reinforcement on the back side of a substructure such as an RC or steel shield segment used for a tunnel or a fume pipe used for sewage. For injecting a repair material for repairing and a repair method.

[0002]

2. Description of the Related Art In general, underground pipes such as tunnels, common ditches, sewers and the like are constructed by connecting a large number of concrete or steel segments (lining), fume pipes, and the like. In this type of pipeline, there is a problem that the joints between the segments are damaged or the adhesion is reduced due to stress concentration due to the deformation of the ribs and the deformation of the ground at the time of assembling, and water leakage occurs. For this reason, conventionally, as shown in FIG. 15, for example, a V-cut is formed on the surface side of the joint portion 101 of the concrete segment 100, and a waterproof material or a reinforcing material made of a polymer material or the like is repaired at that portion. Lumber 102
Filling has been done.

[0003]

However, in the above-mentioned conventional repair method, since the repair is only performed from the surface, the strength of the adhesive surface is deteriorated with time, and the repair material is peeled off. Therefore, there is a problem that maintenance is difficult. In order to perform stable water stoppage and reinforcement, it is effective to pierce the back side of the concrete segment 100, inject a repair material, and perform repair from the base of the joint portion 101. However, as shown in FIG. 15, groundwater 103 is retained on the back side of the concrete segment 100, and when drilling to the back side of the concrete segment 100, the groundwater gushes and ground collapse occurs. It was impossible.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to inject a repair material into a substructure so that the repair material can be injected from the back of the substructure. It is an object to provide a bolt and a repair method.

[0005]

According to the present invention, a driving bolt for pouring a repair material for a first substructure according to the present invention is provided with a repair material for stopping or reinforcing water from one side of the substructure from the other side. A repair material injection driving bolt for injecting, a hollow cylindrical bolt body having a repair material passage formed therein with a repair material injection port on the base end side and a repair material discharge port on the distal end side, A sharp head provided on the tip side of the bolt body, and a retaining member for preventing the bolt body from coming off from the substructure when the repair material discharge port protrudes to one side of the substructure. A member and a check valve provided in the repair material passage to prevent a flow of liquid in a direction opposite to a direction in which the repair material is injected are provided.

According to the driving bolt for injecting a repair material for a first substructure according to the present invention, the bolt body can be driven into the substructure by fixing the sharp head to the tip side and fixed to the substructure. Even if groundwater or the like accumulates on the back side of the substructure when the bolt penetrates the substructure, a check valve is arranged in the repair material passage connecting the repair material discharge port and the repair material inlet. As a result, groundwater does not flow out, and there is no collapse of the ground. After the bolt according to the present invention penetrates the substructure, by injecting the repair material from the repair material injection port, the check valve is opened and the repair material is injected from the repair material discharge port to the back side of the substructure. Can be repaired from the root.

In a preferred embodiment of the driving bolt for injecting a repair material of the first substructure according to the present invention, the retaining member is provided on a side surface of the bolt main body and extends from a distal end to a proximal end. It consists of a plurality of check springs that open in petals. When the retaining member has such a configuration, when the driving bolt is driven into the substructure, the check spring is bent, and the tip of the bolt can be easily projected to the back side of the substructure. After the stop spring has reopened behind the substructure, it becomes a stop. Further, an external thread is preferably formed on the base end side of the bolt body, and a fastening nut is fastened to the external thread, and the base structure is sandwiched between the retaining member and the fastening nut. It is desirable that Thereby, the foundation structure can be sandwiched and fixed between the fastening nut and the retaining member.

Further, in order to prevent breakage, deformation, etc. of the repair material injection port at the time of driving, an internal screw for fastening a driving bolt for driving may be formed at the repair material injection port of the bolt body. .

The repair material passage of the bolt main body is formed, for example, from the base end side to the distal end side of the bolt body, and from the repair material injection passage to the side surface at the distal end side of the bolt body. And one or more repair material discharge passages, wherein the check valve is, for example, an inner hollow cylindrical body attached to the repair material injection passage such that one end is located in front of the repair material discharge passage, A valve body seated on the one end of the inner hollow cylindrical body and closing one end of the inner hollow cylindrical body, and the valve body mounted on the opposite side of the inner hollow cylindrical body with respect to the valve body so that the valve body is the inner hollow cylindrical body. It consists of a spring that presses against the cylindrical body.

According to a first method of repairing a substructure according to the present invention, a step of drilling an unpenetrated hole from one side of the substructure toward the other side of the substructure, and a step of drilling in this step are performed. A step of driving the above-mentioned repair material injection driving bolt into the hole to a position where the retaining member exerts a retaining function, and attaching a tightening nut to a base end of the repair material injection driving bolt to prevent the hole. Tightening the tightening nut until the member comes into contact with the substructure, injecting a predetermined repair material from a repair material injection port of the repair material injection driving bolt, and inserting the repair material injection Closing the injection port of the repair material for the bolt.

A second embodiment of the present invention relates to a repairing material pouring bolt for injecting a repairing material for waterproofing or reinforcement from one side of a substructure to the other side. A casting bolt for injection, a hollow cylindrical inner bolt having a repair material passage formed therein with a repair material inlet on the base end side and a repair material discharge port on the distal end side; and a tip side of the inner bolt. A sharp head, a hollow cylindrical outer bolt accommodating the inner bolt movably in the axial direction, and the repair material discharge port protruding to one side of the substructure. A retaining member for preventing an outer bolt from coming off from the substructure; a check valve provided in the repair material passage for preventing a flow of liquid in a direction opposite to a direction in which the repair material is injected; The outer bolt connected to the proximal end side together with the inner bolt Characterized by comprising an insertion possible connection loft inside.

According to the driving bolt for injecting a repair material for a second substructure according to the present invention, both the inner bolt and the outer bolt are driven into the substructure with the sharp head as the tip side, and only the outer bolt is used. Can be fixed to the substructure,
Even if groundwater is accumulated on the back side of the substructure when the bolt penetrates the substructure, a check valve is arranged in the repair material passage connecting the repair material discharge port and the repair material inlet. Therefore, groundwater does not flow out, and there is no collapse of the ground. After the bolt according to the present invention penetrates the substructure, by injecting the repair material from the repair material injection port, the check valve is opened and the repair material is injected from the repair material discharge port to the back side of the substructure. Can be repaired from the root. In addition, by moving the inner bolt relative to the outer bolt in the axial direction, the repair material injection port can be arranged at an arbitrary distance from the wall of the substructure, so that sludge or the like is particularly near the substructure wall. Even when accumulated, it is possible to effectively inject the repair material while avoiding sludge.

In a preferred embodiment of the driving bolt for injecting a repair material for a second substructure according to the present invention, the retaining member is provided on a side surface of the outer bolt and extends from a distal end to a proximal end. It consists of a plurality of check springs that open in petals. When the retaining member has such a configuration, when the driving bolt is driven into the substructure, the check spring is bent, and the tip of the bolt can be easily projected to the back side of the substructure. After the stop spring has reopened behind the substructure, it becomes a stop. An outer screw is preferably formed on the base end side of the outer bolt, and a tightening nut is fastened to the outer screw, and the base structure is sandwiched between the retaining member and the tightening nut. It is desirable that Thereby, the foundation structure can be sandwiched and fixed between the fastening nut and the retaining member.

It is preferable that an inner screw for connecting the connection loft is formed on a base end side of the inner bolt.

Further, in order to prevent the repair material inlet from being damaged or deformed at the time of driving, the outer screw has a structure capable of fastening not only a fastening nut but also a driving bolt for driving.

[0016] The repair material passage of the inner bolt is formed, for example, from the base end to the distal end of the inner bolt, and from the repair material passage to the side surface at the distal end of the inner bolt. And one or more repair material discharge passages, wherein the check valve is, for example, an inner hollow cylindrical body attached to the repair material injection passage such that one end is located in front of the repair material discharge passage, A valve body seated on the one end of the inner hollow cylindrical body and closing one end of the inner hollow cylindrical body, and the valve body mounted on the opposite side of the inner hollow cylindrical body with respect to the valve body so that the valve body is the inner hollow cylindrical body. It consists of a spring that presses against the cylindrical body.

According to a second method of repairing a substructure according to the present invention, there is provided a step of drilling an unpenetrated hole from one side of the substructure toward the other side of the substructure; 13. A step of driving the repair material injecting bolt according to any one of claims 7 to 12 to a position where the retaining member exerts a retaining function, and a base of the repair material injecting bolt. Attaching a tightening nut to an end portion and tightening the tightening nut until the retaining member comes into contact with the substructure, and the repair material discharge port reaches a location where the repair material is to be injected. Connecting a sufficient number of connection lofts, inserting the inner bolt until it reaches a location where the repair material is to be injected, and removing a predetermined amount from the repair material injection port of the repair material injection driving bolt. A step of injecting a repair material, and Closing the repair material injection port of the driving bolt.

[0018]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing an example of use of a repair material injection driving bolt according to the first embodiment of the present invention. A repair material injection driving bolt 1 according to the present invention is driven into a concrete segment 2 such as a tunnel as a substructure, and its tip (repair discharge port) is stagnant in groundwater on the back side of the segment 2. It protrudes into the part 3. FIG. 2 shows a concrete segment 5
The head 1 of the repair material injecting bolt 1 according to the present invention is sealed with a mortar or the like so that the tip (repair material discharge port) is located in the water retaining portion 7 in the vicinity of the joint portion 6 of FIG. Stopping material 8
The example shown in FIG. In addition, as a water-stopping material used here, for example, there is a suspension type or a melting type injection material,
Examples of the reinforcing agent include cement milk and the like.

FIG. 3 is a perspective view showing a repair material injection driving bolt 1 according to one embodiment, and FIG. 4 is a longitudinal sectional view thereof. The repair material injection driving bolt 1 is mounted inside the bolt main body 11, a conical sharp head 12 provided on the tip side of the bolt main body 11, and the inside of the bolt main body 11. It comprises a check valve 13 and a check spring 14 for retaining.

A repair material passage 21 is formed in the bolt body 11. The repair material passage 21 is provided in the bolt body 11.
Is the repair material injection port 22 on the base end side and the bolt body 11 is on the distal end side.
Repair material discharge ports 2 provided on the opposite side surfaces of
3, a cylindrical repair material injection passage 24 formed concentrically with the bolt body 11 and formed from the base end to the tip end.
2 pierced from the repair material injection passage 24 toward the opposing side surfaces of the bolt body 11 on the tip end side of the bolt body 11.
And two repair material discharge passages 25. Repair material injection passage 2
4 is provided with an inner hollow cylindrical body 26. The distal end of the inner hollow cylindrical body 26 is located slightly below (rear end side) of the repair material discharge passage 25.

At least the tip of the sharp head 12 is made of a steel material which is induction hardened, and the base end is the bolt body 1.
1 and is connected with a screw by a screw. The non-return springs 14 are two elastically deformable springs in which the opposing side surfaces of the lower part of the repair material discharge port 23 of the bolt body 11 are slightly carved, a part is cut out in a petal shape and the lower side is opened. Is a piece. An outer screw 19 to which the fastening nut 15 is fastened is formed on the outer periphery of the base end of the bolt body 11. Further, an inner screw 29 is formed on the inner periphery of the base end of the bolt main body 11, and a screw bolt 18 to be attached at the time of driving the bolt is screwed into the inner screw 29.

The check valve 13 includes an inner hollow cylindrical body 26 mounted in the repair material passage 21 and the valve body 2 seated at the tip thereof.
7 and a spring 28 mounted between the valve element 31 and the inner space of the sharp head 12 to constantly press the valve element 27 against one end of the inner hollow cylindrical body 26. In this example, the valve body 27 includes a cylindrical body 27a having substantially the same outer diameter as the inner hollow cylindrical body 26, and a guide shaft 27b integrally connected to the lower side thereof, and is made of, for example, a rubber material. FIG. 5 shows a state in which the valve element 27 is lifted up against the spring force of the spring 28 by the injection of the repair material R, whereby the repair material R is discharged from the repair material discharge port 23.

Next, a repair method using the above-described driving bolt 1 for repair material injection will be described with reference to FIG. First, as shown in FIG. 1A, a hole 4 is formed from the front side to the back side of the concrete segment 5 at a position to be repaired using an electric drill or the like. At this time, hole 4
It is important to leave a small thickness instead of completely penetrating. This prevents the spouting of groundwater from the water retaining section 7. Next, as shown in FIG. 2B, after attaching a blind bolt 18 to the base end of the driving bolt 1, the driving bolt 1 is driven into the hole 4 using a driving machine. As a result, the check spring 14 bends and the driving bolt 1 is pushed into the hole 4, and the hardened sharp head 12 breaks through the remaining portion of the concrete segment 5 and the hole 4 penetrates. Project from the back side of the concrete segment 5. At this time, since the check valve 13 is disposed inside the driving bolt 1, the groundwater does not flow backward through the repair material passage, and the discharge of the groundwater is prevented. Also, since the check spring 14 moves to the back side of the concrete segment 5 and opens again,
This acts as a retainer.

Next, as shown in FIG. 3C, a tightening nut 15 is attached to the base end of the driving bolt 1 via a packing 16 and a washer 17 shown in FIG. Tighten the nut 15 until the spring 14 contacts the concrete segment 5. Thus, the driving bolt 1 is fixed to the concrete segment 5. Subsequently, as shown in FIG. 2D, a pouring hose 20 is connected to the base end of the driving bolt 1, a repair material such as a waterproof material or a reinforcing material is injected, and the water retaining portion 7 is filled. I do. Finally, FIG.
As shown in (1), the base end of the driving bolt 1 is closed with a bolt 18 and sealed with a mortar 8 as necessary, thereby completing the repair work. In this case, the base end of the driving bolt 1 protrudes from the concrete segment 5. For example, as shown in FIG. The base end of the driving bolt 1 is connected to the concrete segment 5
It is also possible to completely embed it inside.

In order to cope with substructures of various thicknesses, for example, as shown in FIG. 7, pipes 31 of various lengths to be screwed with the internal screw 29 at the base end of the driving bolt 1 are provided. You may comprise so that it may be connected. Also, as shown in FIG. 8, the driving bolt 1 having the above-described configuration is adapted to accommodate injection hoses 32, 33 of various thicknesses, and therefore, has hose connecting nuts 34, 35 of various sizes at the base end. It is also possible to screw the outer screw 19.

FIG. 9 shows an example in which a steel ball 42 is used as the check valve 41 in place of the above-mentioned cylindrical valve body 27. In this case, the same effect can be obtained.

FIG. 10 is a longitudinal sectional view of a repair material injection driving bolt according to a second embodiment of the present invention. In this embodiment, the bolt body 11 of the previous embodiment is divided into an outer bolt 11a and an inner bolt 11b which are coaxially arranged, and the inner bolt 11b is movable in the axial direction with respect to the outer bolt 11a to perform repair. The position of the material discharge port 23 can be adjusted. That is, the repair material injection driving bolt 1 ′ is mounted inside the cylindrical inner bolt 11 b, a conical sharp head 12 provided at the tip of the inner bolt 11 b, and the inside of the inner bolt. Check valve 41,
An outer bolt 11a, which is entirely cylindrical and accommodates the inner bolt 11b so as to be movable in the axial direction, a check spring 14 formed on the outer periphery of the outer bolt 11a for retaining, and a connection for refilling the entire cylinder. And a loft 9. The gap between the outer bolt 11a and the inner bolt 11b is kept liquid-tight by an O-ring 51.

A repair material passage 21 is formed in the inner bolt 11b. The repair material passage 21 is provided with the inner bolt 1
The base side of 1b is the repair material inlet 22, and the distal side is the repair material discharge port 23 provided on the opposing side surface of the inner bolt 11b, formed concentrically with the inner bolt 11b from the proximal side to the distal side. It comprises a repair material injection passage 24 having a cylindrical shape and two repair material discharge passages 25 drilled toward the opposing side surfaces of the inner bolt 11b. An inner hollow cylindrical body 26 is mounted in the repair material injection passage 24. The tip of the inner hollow cylindrical body 26 is
It is located slightly below (proximal side).

The check spring 14 is connected to the outer bolt 11.
2 are two elastically deformable spring pieces which are slightly engraved on opposing side surfaces of a and partially cut out in a petal shape and open on the lower side. An outer screw 19a to which the fastening nut 15 is fastened is formed on the outer periphery of the base end of the outer bolt 11a. An inner screw 2 is provided on the inner peripheral portion of the proximal end of the inner bolt 11b.
9a are formed. The inner screw 29a is screwed with the inner screw 19b of the blind bolt 18 'used at the time of driving and the outer screw 29b of the connection loft 9 connected when extending the length of the inner bolt.

Since other configurations are almost the same as those of the previous embodiment, the corresponding components are denoted by the same reference numerals and the description of the overlapping portions will be omitted.

Next, a repair method using the above-described second repair material injection driving bolt will be described with reference to FIGS. First, similarly to the procedure described with reference to FIG. 6A, a hole 4 is formed from the front side to the back side at a position to be repaired on the concrete segment 5 using an electric drill or the like. Next, as shown in FIG. 11 (a), after attaching a bolt 18 'to the base end of the driving bolt 1',
The driving bolt 1 'is driven in using a driving machine. As a result, the check spring 14 bends and the driving bolt 1 ′ is pushed into the hole 4, and the hardened sharp head 12 breaks through the remaining portion of the concrete segment 5 and the hole 4 penetrates. The tip of the bolt 1 ′ projects to the back of the concrete segment 5. At this time, since the check valve 41 is disposed inside the driving bolt 1 ', the groundwater does not flow backward through the repair material passage, and the discharge of the groundwater is prevented. In addition, since the check spring 14 moves to the back side of the concrete segment 5 and opens again, this acts as a stopper.

Next, as shown in FIG. 3B, a tightening nut 15 is attached to the base end of the driving bolt 1 'via a packing 16 and a washer 17 shown in FIG. Tighten the nut 15 until the spring 14 contacts the concrete segment 5. Thereby, the driving bolt 1 ′ is fixed to the concrete segment 5. Next, as shown in FIG. 11C, the connection loft 9 shown in FIG. 10 is connected to the inner bolt 11b so that the repair material discharge port 23 has a sufficient length to reach the position where the repair material is to be injected. Connect to proximal end. By forming a parallel cut surface for attaching a wrench on the outer peripheral surface of the base end portion of the inner bolt 11b, even when the inner bolt 11b slips with respect to the outer bolt 11a, the connection of the connection loft 9 can be performed firmly. it can. Thereby, by sliding both the connection loft 9 and the inner bolt 11b in the insertion direction, the repair material discharge port 23 can be arranged at an arbitrary position from the wall surface of the concrete segment 5. Note that a plurality of connection lofts 9 can be connected, and by adjusting the number of connections, the range in which the repair material discharge port 23 can be arranged can be expanded. Subsequently, as shown in FIG. 11 (d), an injection hose 20 is connected to the base end of the driving bolt 1 ', and a repair material such as a waterproof material or a reinforcing material is injected to the back side of the concrete segment 5. Fill. FIG. 12 shows the details of the driving bolt 1 'when the repair material is injected. Finally, as shown in FIG. 13 (a), the base end of the driving bolt 1 'is
The repair work is completed by closing with 8 'and sealing with mortar 8 if necessary. In this case, the base end of the driving bolt 1 ′ protrudes from the concrete segment 5. For example, as shown in FIG. It is also possible to completely embed the base end of the bolt 1 ′ in the concrete segment 5.

In addition, since the repair material discharge port 23 can be arranged at an arbitrary distance from the wall surface of the concrete segment 5 as described above, for example, as shown in FIG. Even if accumulated, the sludge M can be avoided to inject the repair material effectively.

[0034]

As described above, according to the repair material injection driving bolt according to the first embodiment of the present invention, the bolt body is driven into the substructure with the sharp head at the tip end side. Even if groundwater etc. has accumulated on the back side of the substructure when the bolt penetrates the substructure, it can be fixed to the repair material passage connecting the repair material discharge port and the repair material inlet. Since the check valve is arranged, the groundwater does not flow out, and after the bolt penetrates the substructure, the check valve is opened by injecting the repair material from the repair material inlet. Since the repair material can be injected from the repair material discharge port to the back side of the substructure, there is an effect that repair can be performed from the base.

According to the repair material injection driving bolt according to the second embodiment of the present invention, in addition to the above effects, the repair is performed by moving the inner bolt relative to the outer bolt in the axial direction. Since the material injection port can be arranged at an arbitrary distance from the wall of the substructure, even if sludge etc. is accumulated near the substructure wall, it is possible to effectively inject the repair material while avoiding sludge. .

[Brief description of the drawings]

FIG. 1 is a view showing an application example of a first repair material injection driving bolt according to an embodiment of the present invention.

FIG. 2 is a view showing another application example of the first repair material injection driving bolt according to the embodiment of the present invention.

FIG. 3 is an external perspective view of the driving bolt and its attached parts.

FIG. 4 is a longitudinal sectional view of the driving bolt.

FIG. 5 is a longitudinal sectional view of a main part of the driving bolt with a check valve opened.

FIG. 6 is a cross-sectional view for explaining a method of repairing a substructure using the driving bolt.

FIG. 7 is a side view of a driving bolt according to another embodiment of the present invention.

FIG. 8 is a side view of a driving bolt according to still another embodiment of the present invention.

FIG. 9 is a longitudinal sectional view of a driving bolt according to still another embodiment of the present invention.

FIG. 10 is a vertical sectional view of a second repair material injection driving bolt and its attached parts according to the embodiment of the present invention.

FIG. 11 is a cross-sectional view for explaining a method of repairing a substructure using the driving bolt.

FIG. 12 is a cross-sectional view for describing a method of repairing a substructure using the driving bolt.

FIG. 13 is a cross-sectional view for describing a method of repairing a substructure using the driving bolt.

FIG. 14 is a cross-sectional view showing a state of repairing defective ground on which sludge has accumulated.

FIG. 15 is a cross-sectional view for explaining a conventional method of repairing a substructure.

[Explanation of symbols]

1, 1 ': Driving bolt for injecting repair material, 11a: Outer bolt, 11b: Inner bolt, 2, 5, 100: Concrete segment, 7: Water retaining part, 9: Connection loft, 11: Bolt body, 12 ... Sharp head, 13, 41 ... check valve, 14
... check spring, 15 ... tightening nut, 16 ... packing, 17 ... washer, 18, 18 '...
1 ... water stop ring, M ... sludge.

Claims (13)

[Claims] Claims 1. A repair material pouring bolt for injecting a repair material for waterproofing or reinforcement from one side of a substructure to the other side, wherein a base material side has a repair material inlet, A hollow cylindrical bolt body in which a repair material passage having a distal end side as a repair material discharge port is formed, a sharp head provided on a distal end side of the bolt body, and the repair material discharge port having the basic structure A retaining member for preventing the bolt main body from coming off from the substructure in a state where the bolt body protrudes from one side of the object, and a liquid flow provided in the repair material passage in a direction opposite to the injection direction of the repair material. A driving bolt for injecting a repairing material for a substructure, comprising a check valve for blocking. 2. The basic structure according to claim 1, wherein the retaining member comprises a plurality of non-return springs provided on a side surface of the bolt body and opened in a petal shape from a distal end to a proximal end. Bolt for injecting repair materials for objects. 3. An external thread is formed on a base end side of the bolt body, a fastening nut is fastened to the external thread, and the foundation structure is sandwiched between the retaining member and the fastening nut. The driving bolt for injecting a repair material for a substructure according to claim 1 or 2. 4. The substructure according to claim 1, wherein an internal screw for fastening a driving bolt for driving is formed in a repair material injection port of the bolt main body. Driving bolt for repair material injection. 5. The repair material passage of the bolt body includes a repair material injection passage formed from a base end side to a distal end side of the bolt body, and a repair material injection passage formed at a distal end side of the bolt body from the repair material injection passage to a side surface. An inner hollow cylindrical body attached to the repair material injection passage such that one end of the check valve is located in front of the repair material discharge passage. A valve body seated on the one end of the inner hollow cylindrical body and closing one end of the inner hollow cylindrical body; and a valve body mounted on an opposite side of the valve body to the inner hollow cylindrical body to remove the valve body from the inner hollow cylindrical body. The driving bolt for injecting a repair material for a substructure according to any one of claims 1 to 4, wherein the driving bolt comprises a spring that presses the cylinder body side. 6. The method according to claim 1, further comprising the step of: drilling an unpenetrated hole from one side of the substructure toward the other side; and forming the hole drilled in this step. A step of driving the repair material injecting driving bolt to a position where the retaining member exerts a retaining function, and attaching a tightening nut to a base end portion of the repair material injecting bolt to fix the retaining member. Tightening the tightening nut until it comes into contact with the substructure, injecting a predetermined repair material from a repair material injection port of the repair material injection driving bolt, A step of closing a repair material injection port. 7. A repair material injecting bolt for injecting a repair material for water stoppage or reinforcement from one side of a substructure to the other side, wherein a base material side has a repair material inlet, A hollow cylindrical inner bolt having a repair material passage formed therein with a distal end serving as a repair material discharge port, a sharp head provided on a distal side of the inner bolt, and moving the inner bolt in the axial direction. A hollow cylindrical outer bolt capable of being housed, and a retaining member for preventing the outer bolt from coming off from the substructure in a state where the repair material discharge port protrudes to one side of the substructure. A check valve provided in the repair material passage to prevent a flow of liquid in a direction opposite to a direction in which the repair material is injected; and a check valve connected to a proximal end side of the inner bolt and inserted into the outer bolt together with the inner bolt. With a possible connection loft Bolts for injecting repair materials for substructures. 8. The basic structure according to claim 7, wherein said retaining member comprises a plurality of non-return springs provided on a side surface of said outer bolt and opened in a petal shape from a distal end to a proximal end. Bolt for injecting repair materials for objects. 9. An external thread is formed on a base end side of the outer bolt, a fastening nut is fastened to the external thread, and the foundation structure is sandwiched between the retaining member and the fastening nut. 9. The driving bolt for injecting a repair material for a substructure according to claim 7 or 8. 10. The repair material for a substructure according to claim 7, wherein an inner screw for connecting the connection loft is formed on a base end side of the inner bolt. Pour bolt for injection. 11. The driving bolt for injecting a repair material for a substructure according to claim 9, wherein a screw bolt for driving can be fastened to the outer screw. 12. The repair material passage of the inner bolt is formed from a proximal end to a distal end of the inner bolt, and a repair material injection passage formed from the distal end of the inner bolt to the side surface of the repair bolt. An inner hollow cylindrical body attached to the repair material injection passage such that one end of the check valve is located in front of the repair material discharge passage. A valve body seated on the one end of the inner hollow cylindrical body and closing one end of the inner hollow cylindrical body; and a valve body mounted on an opposite side of the valve body to the inner hollow cylindrical body to remove the valve body from the inner hollow cylindrical body. The driving bolt for injecting a repair material for a substructure according to any one of claims 7 to 11, wherein the driving bolt comprises a spring that presses the cylinder body side. 13. The step of drilling an unpenetrated hole from one side of the substructure toward the other side of the substructure, and the hole drilled in this step. A step of driving the repair material injecting driving bolt to a position where the retaining member exerts a retaining function, and attaching a tightening nut to a base end portion of the repair material injecting bolt to fix the retaining member. Tightening the tightening nut until it comes into contact with the substructure; connecting a sufficient number of connection lofts so that the repair material discharge port reaches a location where the repair material is to be injected; A step of inserting a bolt until reaching the place where the repair material is to be injected; a step of injecting a predetermined repair material from a repair material injection port of the repair material injecting driving bolt; Closing the bolt injection hole for repair material A method for repairing a substructure characterized by the following.