CN-224233291-U - Monitoring instrument wiring structure of sleeve lining reinforced water delivery tunnel

CN224233291UCN 224233291 UCN224233291 UCN 224233291UCN-224233291-U

Abstract

The utility model relates to the technical field of monitoring of water delivery tunnels, in particular to a wiring structure of a monitoring instrument for a sleeve lining reinforced water delivery tunnel. The technical scheme is that the wiring structure of the monitoring instrument for the sleeve lining reinforced water delivery tunnel comprises an existing lining, a plurality of monitoring instruments and an arch-shaped protection tube, wherein the monitoring instruments are arranged on the inner surface of the existing lining in an equidistant mode along the arch, shielding wires of all the monitoring instruments penetrate into the arch-shaped protection tube, all the shielding wires are converged to an outlet position on the arch-shaped protection tube and extend outwards to a signal acquisition position outside the tunnel, and the arch-shaped protection tube is arranged on the inner surface of the existing lining. The shielding wire is prevented from contacting with the concrete poured subsequently, the risk of instrument damage is reduced, the pouring safety and durability are improved, and the operation of binding the shielding wire on the reinforcing mesh is omitted.

Inventors

Shen Guoyun
YANG JIAYING
ZHAO TIANMIN
Kang Kaijun
ZHANG ZHENGPING
HE YANFENG
SUN WEIQIANG
XU GUANZHANG
WANG XIZE

Assignees

甘肃省景泰川电力提灌水资源利用中心

Dates

Publication Date: 20260512
Application Date: 20250516

Claims (6)

1. The utility model provides a monitoring instrument wiring structure of sleeve lining reinforcement water delivery tunnel, includes current lining (1), its characterized in that still includes monitoring instrument (4) and arch protection tube (3), monitoring instrument (4) are provided with a plurality ofly, a plurality of monitoring instrument (4) are arranged on the internal surface of current lining (1) along arch equidistance; All shielding wires (6) of the monitoring instrument (4) penetrate into the arch-shaped protection tube (3), all shielding wires (6) are converged at one outlet position on the arch-shaped protection tube (3) and extend outwards to the signal acquisition position outside the tunnel, and the arch-shaped protection tube (3) is installed on the inner surface of the existing lining (1).
2. The lining reinforced water tunnel monitoring instrument wiring structure according to claim 1, further comprising an outer extension pipe (5), wherein the outer extension pipe (5) is mounted on the inner surface of the existing lining (1), all shielding wires (6) are converged to one outlet position on the arched protection pipe (3) and penetrate into the outer extension pipe (5), the outer extension pipe (5) is connected to a signal acquisition place outside the tunnel, and one end of the outer extension pipe (5) far away from the arched protection pipe (3) extends outside the tunnel.
3. The lining reinforced water tunnel monitoring instrument wiring structure according to claim 2, further comprising a linear protection tube (10), wherein the linear protection tube (10) is communicated with the bottom end opening of the arched protection tube (3), the linear protection tube (10) is mounted on the inner surface bottom plate of the existing lining (1), the monitoring instrument (4) is mounted on the inner surface bottom plate of the existing lining (1), and a shielding wire (6) of the monitoring instrument (4) penetrates into the linear protection tube (10) and further penetrates into the arched protection tube (3).
4. A monitoring instrument wiring structure of a lining reinforced water conveyance tunnel according to claim 1, characterized in that the monitoring instrument (4) is bolted to the inner surface of the existing lining (1).
5. A monitoring instrument wiring structure for a lining reinforced water conveyance tunnel according to claim 3, wherein the arched protection pipe (3), the outer extension pipe (5) and the straight protection pipe (10) are all installed on the inner surface of the existing lining (1) through fixing buckles (9).
6. The lining reinforced water tunnel monitoring instrument wiring structure according to claim 1, further comprising lining concrete (2), wherein the lining concrete (2) is poured on the inner side of the existing lining (1), and the monitoring instrument (4) is located between the contact surfaces of the existing lining (1) and the lining concrete (2).

Description

Monitoring instrument wiring structure of sleeve lining reinforced water delivery tunnel Technical Field The utility model relates to the technical field of monitoring of water delivery tunnels, in particular to a wiring structure of a monitoring instrument for a sleeve lining reinforced water delivery tunnel. Background Along with the development of water conservancy and hydropower industry in China, the number and the scale of hydraulic tunnels are continuously enlarged. Along with long-time high-load operation of the water delivery tunnel, structural degradation and diseases are inevitably generated, the service performance is reduced, and the operation requirement is difficult to meet. Sleeve lining reinforcement is an important means for reinforcing a water-conveying tunnel, but the difference between the mechanical properties of newly poured reinforced concrete and the mechanical properties of the existing degraded concrete is large, and how to ensure that the two materials are stressed cooperatively is the key of engineering success. Therefore, a monitoring instrument is required to be arranged in construction, and the contact state of new and old concrete structures is timely acquired. At present, in the sleeve lining reinforced water delivery tunnel engineering, the installation mode of traffic tunnel engineering is adopted for the installation of the monitoring instrument, the monitoring instrument is fixed on a reinforcing steel bar net of the sleeve lining pouring secondary lining in a binding or welding mode, a shielding wire of the instrument is bound on the secondary lining reinforcing steel bar net through an iron wire, a shielding wire joint is reserved to a position convenient for monitoring, and finally the instrument and the shielding wire are poured in concrete together. The section space of the water delivery tunnel is narrow, the wiring mode is complex to operate, the risk that the shielding line is broken due to the fact that concrete is hardened and contracted in the process of pouring the secondary lining exists, and the risk of instrument damage is high. Disclosure of utility model The utility model provides a wiring structure of a monitoring instrument for a sleeve lining reinforced water delivery tunnel, which solves the problem that a shielding wire is broken due to hardening and shrinkage of concrete in the process of pouring a secondary lining in the prior art. In order to solve the technical problems, the utility model adopts the following technical scheme: The wiring structure of the monitoring instrument for the sleeve lining reinforced water delivery tunnel comprises an existing lining, a plurality of monitoring instruments and an arch-shaped protection tube, wherein the monitoring instruments are arranged on the inner surface of the existing lining in an equidistant arrangement mode along the arch; all shielding wires of the monitoring instrument penetrate into the arch-shaped protection tube, all shielding wires are converged to one outlet position on the arch-shaped protection tube and extend outwards to the signal acquisition position outside the tunnel, and the arch-shaped protection tube is arranged on the inner surface of the existing lining. Further, the tunnel protection device further comprises an outer extension pipe, wherein the outer extension pipe is arranged on the inner surface of the existing lining, all shielding wires are converged to one outlet position on the arched protection pipe and penetrate into the outer extension pipe, the outer extension pipe penetrates through the outer extension pipe to be connected to the signal acquisition part outside the tunnel, and one end of the outer extension pipe, which is far away from the arched protection pipe, extends out of the tunnel. Further, the device further comprises a linear protection pipe, wherein the linear protection pipe is communicated with the bottom end opening of the arched protection pipe, the linear protection pipe is installed on the inner surface bottom plate of the existing lining, a monitoring instrument is installed on the inner surface bottom plate of the existing lining, and a shielding wire of the monitoring instrument penetrates into the linear protection pipe and further penetrates into the arched protection pipe. Further, the monitoring instrument is bolted to the inner surface of the existing lining. Furthermore, the arch protection tube, the outer extension tube and the linear protection tube are all installed on the inner surface of the existing lining through fixing buckles. Further, the lining concrete is poured on the inner side of the existing lining, and the monitoring instrument is located between the contact surfaces of the existing lining and the lining concrete. The protective tube has the advantages that through the design of the protective tube, shielding wires of all monitoring instruments are protected and gathered to the top, and pass out of the same protective tube