JP3449885B2 - Pipe for installation of impermeable wall of propulsion gutter pipe - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel propulsion gutter to which a water barrier surrounding a gutter pipe buried in a dike or the like can be easily attached. The present invention relates to a pipe for mounting a water impervious wall. 2. Description of the Related Art In order to prevent flooding and rupture of a levee at the time of flooding, there is a case where a gutter pipe for draining the rising water to another river or a wastewater treatment plant is provided at a foundation portion of the levee. is there. As a method of embedding the gutter pipe, a propulsion method is known in which a starting shaft 1A is provided at the base of the embankment 1 as shown in FIG. Have been. [0004] In this propulsion method, the embankment 1 is not excavated, so that it has little effect on the strength of the embankment. Even if the upper surface of the embankment is a road, the construction does not hinder traffic, and furthermore, the construction period is short and costly. Also has various advantages such as cheap,
It has been heavily used. [0005] However, the embankment 1
When the gutter pipe 2 penetrates the water, the water path W tends to be formed along the gutter pipe 2 as shown in FIG. Therefore, when the gutter pipe 2 is provided, it is necessary to provide the flange-shaped impermeable wall 3 at an intermediate portion thereof. However, since the impermeable wall 3 is provided outside the gutter 2, it is necessary to excavate the embankment 1 as shown by the dotted line at the time of installation, and the traffic on the embankment during that time is hindered, and the construction becomes large. was there. SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and when installing a gutter pipe on a dike, a water impervious wall can be easily formed on the gutter pipe without performing any excavation or excavation from the ground surface. An object of the present invention is to provide a pipe for mounting a water impervious wall of a propulsion gutter pipe that can be mounted on a pipe. According to the present invention, there is provided a pipe for attaching a water impervious wall of a propulsion gutter pipe according to the present invention, comprising a front end pipe, a rear end pipe, and a connection inner pipe for connecting these front and rear end pipes at an interval in the axial direction. And a cover plate inserted in the axial gap between the front and rear end pipes from the pipe inner surface toward the pipe outer surface to eliminate irregularities on the outer surface of the connecting portion, and the front end pipe has a propulsion direction front end forward. It is a joint to the other propulsion pipe rear end located, the rear end inner surface is a receiving port for releasably receiving the connection inner pipe outer surface, and further, the cover plate fixing step portion on the receiving port rear end inner surface. Provided,
The rear end pipe, a connection inner pipe fixing portion including an inner peripheral projection along an outer surface of the connection inner pipe on a front end inner surface in a propulsion direction and a locking member detachably provided on a rear end side of the inner peripheral projection, A rear end side of the connection inner tube fixing portion has an inner diameter enlarged portion for slidingly receiving the connection inner tube in the axial direction, and a step portion for fixing the cover plate is provided on a front end surface in the propulsion direction. The rear end in the direction is a joint to another front end of the propulsion pipe located behind it, and the connection inner pipe is detachably attached to a reception port at the rear end of the front end pipe and a connection inner pipe fixing portion on the inner surface of the rear end pipe. And the cover plate has a strength capable of withstanding the propulsion pressure, and the cover plate has an outer convex portion flush with the outer surface of the front and rear end tubes, and a joint that engages with a fixing step portion of the front and rear end tubes. It is a strip-shaped plate having a stepped portion, and the inner surface of the tube is formed at the engaging stepped portion so as to be adjacent to the front and rear end tubes in the circumferential direction over the entire circumference. And it is characterized in that formed by the al detachably fixable. Next, an embodiment of the present invention will be described. FIG. 1 is a sectional view showing an embodiment of the present invention. [0010] The pipe 4 for mounting the water impervious wall of the propulsion gutter pipe according to the present invention includes a front end pipe 5, a rear end pipe 6, a connection inner pipe 7 for connecting these front and rear end pipes at an interval in the axial direction, and the front and rear end pipes. Tubes 5, 6
And a cover plate 8 which is inserted from the inner surface of the tube toward the outer surface of the tube in the axial gap and removes irregularities on the outer surface of the connection portion. In the above description, the front end pipe 5 is a joint to the rear end 10B of another propulsion pipe 10 whose front end in the propulsion direction is located forward of the front end pipe 5 as shown in FIG. The inner surface of the rear end is a receiving port 5B for releasably receiving the outer surface of the connection inner pipe 7, and the inner surface of the receiving rear end 5C is provided with the cover plate 8 fixing step 5D. The rear end tube 6 is provided on the inner surface at the front end in the propulsion direction along the outer surface of the connection inner tube 7 and on the rear end side of the inner peripheral protrusion 6A, as also shown enlarged in FIG. Connecting inner tube fixing portion 9 and an inner diameter enlarged portion 6B which receives the connecting inner tube 7 by sliding in the axial direction to the rear end side from the connecting inner tube fixing portion 9.
And a step 6D for fixing the cover plate 8 is provided on the front end face 6C in the propulsion direction, and a joint to the front end of another propulsion pipe 10 located rearward from the rear end in the propulsion direction, specifically, Is a receiving port 6E for receiving the insertion port 10A. The connection inner pipe 7 is formed by a lock ring 1 formed by a receiving port 5B at the rear end of the front end pipe 5 and a connection inner pipe fixing portion 9 on the inner surface of the rear end pipe 6.
It can be detachably fixed via the pins 2 and 12, and has strength enough to withstand the propulsion pressure. The cover plate 8 has an outer convex portion 8A flush with the outer surfaces of the front and rear end tubes 5 and 6, and a joining step portion 8B which engages with the fixing step portions 5D and 6D of the front and rear end tubes 5 and 6. It is a strip-shaped plate, and is fixed so as to be detachable from the inner surface of the pipe by the engaging step portions 5D and 6D so as to be adjacent to each other in the circumferential direction between the front and rear end pipes 5 and 6 over the entire circumference. In the drawing, reference numeral 8C denotes a fixing bolt to be screw-fitted from the inner surface of the tube. In the above, the receiving port 5B of the front end tube 5 is shown in FIG.
As shown in the figure, a ridge 5E in contact with the outer periphery of the connection inner pipe 7 and a circumferential groove 5F for storing the lock ring 12 provided on the ridge 5E are provided, and a seal rubber 5G and a pressing ring 5H are provided as necessary. The pressing wheel 5H is pressed by a telescopic bolt 5K that is provided and is inserted in a state of being stretched between the rear end surface 5J of the receiving port 5B. As shown in FIG. 3, the rear end tube 6 has a circumferential groove 6 for accommodating the lock ring 12 on the surface of the inner peripheral projection 6A.
F is provided. The connection inner pipe fixing part 9 of the rear end pipe 6
A lock ring 9B detachably attached to the inner surface of the rear end tube 6 by a bolt 9A, and a telescopic bolt 9C inserted between the side surface of the lock ring 9B and the connection inner tube 7 in a stretched state.
And a press ring 9D pressed by the telescopic bolt 9C, and a seal rubber 9E compressed between the outer surface of the connection inner tube 7 and the rising inclined surface 6G of the inner peripheral projection 6A by the press ring 9D. Next, the use state of the pipe 4 for mounting the water impervious wall of the propulsion gutter pipe of the present invention will be described. As shown in FIG. 1, a cover plate 8 is applied between the front end tube 5 and the rear end tube 6 from the inner surface and is sequentially fixed in the circumferential direction with bolts 8C, and then the connection inner tube 7 is connected between the front and rear end tubes 5, 6. , A pipe 4 for mounting a water impervious wall of the propulsion gutter pipe is assembled, and connected to a normal propulsion gutter pipe 2 as shown in FIG.
We will promote with B. After the gutter tube 2 is penetrated by the propulsion method,
As shown in FIG. 4, a grout agent 11 is injected around the propulsion gutter tube 2 and hardened. Thereafter, as shown in FIG. 5, the lock ring 9B, the telescopic bolt 9C, the push ring 9D, and the seal rubber 9E of the pipe 4 for mounting the water barrier wall of the propulsion gutter pipe are removed from the inside of the pipe in this order. It is made free in the water wall mounting pipe 4 and is moved axially to the inner diameter enlarged portion 6B of the rear end pipe 6. By this movement, the cover plate 8 is exposed in the pipe, and the cover plate 8 is removed. As a result, the soil 13 at the mounting position of the impermeable wall is
Is exposed to the inner surface of the tube. Next, as shown in FIGS. 6 and 7, a groove 13A into which the impermeable wall 3 can be inserted is excavated radially around the gutter pipe 2, and a disk is inserted into the excavated groove 13A in the radial direction as shown in FIG. While connecting the divided pieces 3A of the impermeable wall 3 divided into a large number of divided pieces 3A in the circumferential direction 3A,
It is inserted into the excavation groove 13A with the jack 3B installed in the pipe. The disc-shaped impermeable wall 3 is formed in the excavation groove 13A.
Is completed, as shown in FIG. 8, the waterproof wall base 3G and the front and rear end pipes 5 and 6 are connected with the bolts and nuts 15 through the sealing rubber plate 14 and finally the connection inner pipe 7 is again connected. Return to the original position, and reversely attach and fix seal rubber 9E, push ring 9D, telescopic bolt 9C, and lock ring 9B in this order. Then, grout 15 is injected into the space between the groove 13A and the impermeable wall 3, and the mortar 16 is provided on the inner surface of the inner diameter enlarged portion 6B of the rear end tube 6 and other concave portions to finish the inner surface uniformly. I do. FIG. 9 shows a completed gutter pipe 2 having a water impervious wall 3 at a substantially central portion, and an overflow weir 18 is provided on the river side. As described above, according to the present invention, when a gutter pipe is attached to a dike by the propulsion method, if the gutter pipe is provided at a position where a water impervious wall is provided, the gutter pipe penetrates the connection after the gutter pipe penetrates. By moving the pipe in the axial direction and removing the cover plate, it is possible to excavate a groove for impermeable walls from the inside of the pipe under the ground, and it is not necessary to cut the dike from the outside, so even if the top of the dike is a road Construction work with gutter pipes can be carried out without causing traffic obstacles. The impermeable wall is watertight and firmly fixed by using the steps of the front and rear end pipes to which the cover plate is attached, so that the mounting strength and the imperviousness are very high, and the impervious wall extends along the gutter pipe. It has the effect of effectively preventing the formation of water channels.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a partially enlarged sectional view of a front end tube. FIG. 3 is a partially enlarged sectional view of a rear end tube. FIG. 4 is an explanatory view of a use state of a pipe for attaching a water impervious wall of a propulsion gutter pipe according to the present invention. FIG. 5 is an enlarged sectional view showing a use state of a pipe for attaching a water impervious wall to a propulsion gutter pipe according to the present invention. FIG. 6 is a longitudinal sectional view of a step of installing a water impermeable wall. FIG. 7 is a cross-sectional view of a step of installing a water impermeable wall. FIG. 8 is an explanatory cross-sectional view of a main part showing a connection structure with a water impermeable wall. FIG. 9 is an explanatory view of a completed gutter tube and impermeable walls. FIG. 10 is an explanatory sectional view of a conventional method for attaching a gutter pipe. FIG. 11 is an explanatory sectional view of a conventional method for attaching a water impervious wall to a propulsion gutter pipe. [Description of Signs] 1 ... embankment 1A ... starting shaft 1B ... jack 2 ... gutter 3 ... impermeable wall 3A ... many divided pieces 3B ... jack 4 ... pipe for mounting impermeable wall of propulsion gutter 5 ... front end pipe 5A … Slot (joint) 5B… Sink 5C… Ship rear end 5D… Cover plate fixing step 5E… Protrusion 5F… Storage circumferential groove 5G… Seal rubber 5H… Pressing ring 5J… Side end face of the mouth 5K: Telescopic bolt 6: Rear end tube 6A: Inner peripheral projection 6B: Inner diameter enlarged portion 6C: Propulsion front surface 6D: Cover plate fixing step 6F: Storage circumferential groove 6G: Rising slope 7: Connection Pipe 8 ... Cover plate 8A ... Outer convex part 8B ... Joining step 8C ... Fixing bolt 9 ... Connection inner pipe fixing part 9A ... Bolt 9B ... Lock ring 9C ... Expansion bolt 9D ... Press ring 9E ... Seal rubber 10 ... Other propulsion Pipe 10A: Insertion opening 10B: Rear end 11: Grouting agent 12: Lock ring 3 ... impervious wall can be inserted soil 13A ... impervious wall of the mounting positions grooves 14 ... sealing rubber plate 15 ... bolt nuts 16 ... grout 17 ... mortar W ... Hydraulic Pathways

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) E02B 3/04 E02B 3/10 E02B 8/00 E21D 9/06 311

Claims (1)

(1) A front end pipe, a rear end pipe, a connection inner pipe connecting these front and rear end pipes at an interval in the axial direction, and a pipe inner surface in an axial gap between the front and rear end pipes. And a cover plate that is inserted toward the outer surface of the pipe from the outer surface of the connecting portion to eliminate irregularities on the outer surface of the connecting portion.The front end pipe is a joint to another propulsion pipe rear end whose propulsion front end is located forward of the front end pipe, The inner surface of the rear end is a receiving port for removably receiving the outer surface of the connection inner tube, and the receiving plate is further provided with a step portion for fixing the cover plate on the inner surface of the rear end. A connection inner pipe fixing portion comprising an inner peripheral projection along the outer surface of the connection inner pipe, a locking member detachably provided on a rear end side of the inner peripheral projection, and a rear end side from the connection inner pipe fixing section. The inner tube has an inner diameter enlarged portion for receiving the connection inner pipe by sliding the pipe in the axial direction. A bar plate fixing step portion is provided, and the rear end in the propulsion direction is a joint with another front end of the propulsion pipe located behind the propulsion pipe, and the connection inner pipe is provided with a socket at the rear end of the front end pipe and a rear end pipe. The cover plate is detachably fixable to the connection inner tube fixing portion of the surface, and has strength enough to withstand the propulsion pressure. The cover plate has an outer surface convex portion flush with the outer surface of the front and rear end tube, and a front and rear end. A strip-shaped plate having a joining step for engaging with the fixing step of the pipe, which can be detachably fixed from the inner surface of the pipe at the engaging step so as to be adjacent to the front and rear end pipes over the entire circumference in the circumferential direction. A pipe for attaching a water impervious wall of a propulsion gutter pipe, characterized in that: