1. The utility model provides a sensor group wire protection device in steel reinforcement cage which characterized in that includes:

the PVC open pipe is fixed on a longitudinal rib of the reinforcement cage through a binding band, a first opening for leading in a lead of a sensor group is formed in the PVC open pipe along the axial direction, and one side of the PVC open pipe, back to the first opening, is inwards recessed along the axial direction and forms a first groove for clamping and embedding the longitudinal rib;

a plurality of pipe clamps of blocking, follow the axial interval card of PVC opening pipe is located first opening part, the pipe clamp of blocking includes arc, floor and cardboard, the arc is followed the circumference cladding of PVC opening pipe and is blocked in the first open-ended outside, the floor is followed the radial of arc is fixed in the inboard of arc, just keep away from on the floor one side of arc inserts in the first opening and fix to on the cardboard, the cardboard block in first open-ended inboard.

2. The device for protecting the lead of the sensor group in the steel reinforcement cage as claimed in claim 1, wherein the arc-shaped plate is recessed inwards along the circumferential direction and forms a second groove for the binding band to be embedded.

3. The device for protecting the lead of the sensor group in the reinforcement cage according to claim 1, wherein the PVC open pipe is formed by splicing a plurality of PVC open pipe sections, and adjacent PVC open pipe sections are spliced and connected through butt joint pipes.

4. The device for protecting the wires of the sensor group in the reinforcement cage according to claim 3, wherein the butt joint pipes are divided into a plurality of direct pipes only used for butt joint of the PVC opening pipe sections of the adjacent sections and a plurality of T-shaped tee pipes used for butt joint of the PVC opening pipe sections of the adjacent sections and simultaneously converging the wires of the sensor group, and the direct pipes and the T-shaped tee pipes are respectively provided with a second opening with the width consistent with that of the first opening along the pipeline direction.

5. The device for protecting the lead of the sensor group in the steel reinforcement cage according to claim 4, wherein the plurality of sections of PVC open pipe sections comprise a plurality of sections of large-diameter PVC open pipe sections and a plurality of sections of small-diameter PVC open pipe sections, the plurality of direct pipes comprise a plurality of same-diameter direct connecting pipes and a plurality of reducing direct pipes, the adjacent large-diameter PVC open pipe sections and the adjacent small-diameter PVC open pipe sections are butted through the same-diameter direct connecting pipes, and the adjacent large-diameter PVC open pipe sections and the small-diameter PVC open pipe sections are spliced through the reducing direct pipes.

6. The device for protecting the lead of the sensor group in the steel reinforcement cage according to any one of claims 1 to 5, wherein the lead is provided with a redundant section extending out of the PVC open pipe for a certain length, a protection pipe for sleeving the redundant section is fixed on the steel reinforcement cage, and two ends of the protection pipe are provided with plugging structures.

7. A method for installing a sensor group lead protection device in a reinforcement cage is characterized by comprising the following steps:

providing a sensor group lead protection device in a reinforcement cage according to any one of claims 1 to 5;

placing the PVC open pipe along the longitudinal bars of the reinforcement cage;

and the sensor group is installed from one end to the other end of the steel reinforcement cage, the wires are converged into the PVC open pipe from the first opening, a blocking pipe clamp is clamped into the PVC open pipe at a certain interval, and the PVC open pipe is fixed on the longitudinal ribs of the steel reinforcement cage by binding bands at the blocking pipe clamp.

8. The method of installing a sensor group lead protector in a reinforcement cage of claim 7, wherein upon installation of the sensor group:

extending the lead out of the PVC open pipe for a certain length and forming a redundant section;

and sleeving a protection pipe outside the redundant section, fixing the protection pipe to the reinforcement cage, and plugging the two ends of the protection pipe through a plugging structure.

Background

The underground continuous wall is one of the most important forms of the deep foundation pit engineering supporting structure. The excavation of the deep foundation pit can cause the deformation of the underground diaphragm wall, influence the safety of the foundation pit, and simultaneously can also generate adverse effects on the adjacent buildings (structures). In the deep foundation pit construction process, the internal force and deformation of the underground diaphragm wall need to be monitored in real time, data are analyzed in time, and the safety of the foundation pit is judged, so that information-based construction is realized, and construction accidents are avoided. However, in the ultra-deep foundation pit, because the length of the reinforcement cage is too long, an additional reinforcing rib is additionally arranged to prevent the reinforcement cage from bending and deforming in the hoisting and erecting process, and after the reinforcement cage is erected, the additional reinforcing rib needs to be removed in the process of being placed into the pit slot. Therefore, in the process of lowering the reinforcement cage, the phenomenon that the reinforcement accidentally falls into the pit slot can occur, and the lead is easy to break; meanwhile, when the lead is loose, the outer part of the reinforcement cage is exposed, and when the lead is exposed to the pit surface, the lead is easy to cut off in foundation pit excavation. For the reasons, it is very necessary to protect the wires of the built-in sensor group of the ultra-deep underground continuous wall.

The conventional method for protecting the lead adopts a PVC pipe, but the lead of the ultra-deep underground diaphragm wall sensor group is generally dozens of meters in length, the height of the reinforcement cage is lower, the activity space is narrow, and because the PVC pipe is not grooved, the efficiency of threading the PVC pipe is low, so that the installation of the sensor group is too long, and the hoisting construction of the reinforcement cage is easily delayed.

Disclosure of Invention

In order to solve the problems, the invention provides a sensor group lead protection device in a reinforcement cage and an installation method thereof, which can effectively improve the wiring efficiency of monitoring devices such as a sensor group and the like, reduce the working time of installation personnel in the reinforcement cage, improve the construction efficiency and the construction safety, accelerate the construction period and reduce the construction difficulty.

The invention is realized by the following scheme: a sensor group wire protection device in a reinforcement cage comprises:

the PVC open pipe is fixed on a longitudinal rib of the reinforcement cage through a binding band, a first opening for leading in a lead of a sensor group is formed in the PVC open pipe along the axial direction, and one side of the PVC open pipe, back to the first opening, is inwards recessed along the axial direction and forms a first groove for clamping and embedding the longitudinal rib;

a plurality of pipe clamps of blocking, follow the axial interval card of PVC opening pipe is located first opening part, the pipe clamp of blocking includes arc, floor and cardboard, the arc is followed the circumference cladding of PVC opening pipe and is blocked in the first open-ended outside, the floor is followed the radial of arc is fixed in the inboard of arc, just keep away from on the floor one side of arc inserts in the first opening and fix to on the cardboard, the cardboard block in first open-ended inboard.

The wire protection device for the sensor group in the reinforcement cage is further improved in that the arc-shaped plate is inwards recessed along the circumferential direction and forms a second groove for clamping and embedding the binding band.

The sensor group lead protection device in the reinforcement cage is further improved in that the PVC open pipe is formed by splicing a plurality of sections of PVC open pipe sections, and the adjacent sections of the PVC open pipe sections are spliced and connected through butt-joint pipes.

The device for protecting the lead of the sensor group in the reinforcement cage is further improved in that the butt joint pipes are divided into a plurality of direct pipes only used for butt joint of adjacent sections of the PVC opening pipe sections and a plurality of T-shaped three-way pipes used for butt joint of adjacent sections of the PVC opening pipe sections and simultaneously converging the lead of the sensor group, and second openings with the width consistent with that of the first openings are formed in the direct pipes and the T-shaped three-way pipes along the pipeline direction.

The sensor group lead protection device in the reinforcement cage is further improved in that the multiple sections of PVC open pipe sections comprise multiple sections of large-diameter PVC open pipe sections and multiple sections of small-diameter PVC open pipe sections, the multiple direct pipes comprise multiple same-diameter direct connecting pipes and multiple reducing direct pipes, the adjacent large-diameter PVC open pipe sections and the adjacent small-diameter PVC open pipe sections are in butt joint through the same-diameter direct connecting pipes, and the adjacent large-diameter PVC open pipe sections and the adjacent small-diameter PVC open pipe sections are spliced through the reducing direct pipes.

The sensor group lead protection device in the steel reinforcement cage is further improved in that the lead is provided with a redundant section which extends out of the PVC open pipe for a certain length, a protection pipe for sleeving the redundant section is fixed on the steel reinforcement cage, and two ends of the protection pipe are provided with plugging structures.

A method for installing a sensor group lead protection device in a reinforcement cage comprises the following steps:

providing a sensor group lead protection device in the reinforcement cage;

placing the PVC open pipe along the longitudinal bars of the reinforcement cage;

and the sensor group is installed from one end to the other end of the steel reinforcement cage, the wires are converged into the PVC open pipe from the first opening, a blocking pipe clamp is clamped into the PVC open pipe at a certain interval, and the PVC open pipe is fixed on the longitudinal ribs of the steel reinforcement cage by binding bands at the blocking pipe clamp.

The installation method of the sensor group lead protection device in the reinforcement cage is further improved in that when the sensor group is installed:

extending the lead out of the PVC open pipe for a certain length and forming a redundant section;

and sleeving a protection pipe outside the redundant section, fixing the protection pipe to the reinforcement cage, and plugging the two ends of the protection pipe through a plugging structure.

The present invention includes but is not limited to the following benefits:

1. through first opening and first groove structure on the PVC opening pipe, can realize monitoring devices's such as sensor group quick installation, effectively improve the wiring efficiency of sensor group etc. reduce the operating time of installer in the steel reinforcement cage, avoided delaying the hoist and mount construction of steel reinforcement cage because of the installation is consuming time the overlength, improved efficiency of construction and construction safety for construction period has reduced the construction degree of difficulty.

2. Through the cooperation installation of blocking pipe strap and PVC opening pipe, prevented exposing of wire, avoided transferring the damage of process and foundation ditch excavation process to the wire at the steel reinforcement cage.

3. Through the mosaic structure of PVC opening pipe and the setting of cooperation butt joint pipe, be convenient for carry longer PVC opening pipe, reduced the installation degree of difficulty in the steel reinforcement cage, simultaneously, conveniently carry out large-scale production, do benefit to cost control, have good economic benefits, have spreading value.

Drawings

Fig. 1 shows a schematic perspective view of the installed sensor group wire protection device in the reinforcement cage.

Fig. 2 is a schematic cross-sectional view illustrating the sensor group lead protecting device in the reinforcement cage fixed to the longitudinal bars through the binding bands.

FIG. 3 is a schematic perspective view showing the structure of the PVC open pipe according to the present invention.

Fig. 4 shows a schematic perspective view of the stopper clip of the present invention.

Fig. 5 shows a schematic perspective structure of a T-shaped tee in the invention.

Fig. 6 is a schematic perspective view of the same-diameter direct connection pipe according to the present invention.

FIG. 7 is a schematic perspective view of a variable diameter direct pipe according to the present invention.

Fig. 8 shows a schematic layout of the sensor group lead protection device and the sensor group in the reinforcement cage according to the invention.

Detailed Description

In the prior art, the conventional method for protecting the wires of the sensor group in the reinforcement cage adopts PVC pipes, but the lengths of the wires corresponding to the ultra-deep underground diaphragm wall monitoring sensor group are generally dozens of meters, the height of the reinforcement cage is lower, the activity space is narrow, and the PVC pipe threading operation efficiency is low because the PVC pipes are not slotted, so that the installation of the sensor group is long in time consumption, and the hoisting construction of the reinforcement cage is easily delayed. Based on the problems, the invention provides the sensor group lead protection device in the reinforcement cage and the installation method thereof, which can effectively improve the wiring efficiency of monitoring devices such as the sensor group and the like, reduce the working time of installation personnel in the reinforcement cage, improve the construction efficiency and the construction safety, accelerate the construction period and reduce the construction difficulty.

The following describes the wire protection device for the sensor group in the reinforcement cage and the installation method thereof with specific embodiments in combination with the accompanying drawings.

Referring to fig. 1 to 4 and 8, a device for protecting a wire of a sensor group in a reinforcement cage includes:

the PVC open pipe 1 is fixed on a longitudinal rib 31 of the reinforcement cage 3 through a binding band 2, a first opening 11 for leading in a lead wire 41 of a sensor group is formed on the PVC open pipe 1 along the axial direction, and one side of the PVC open pipe 1 back to the first opening 11 is inwards sunken along the axial direction and forms a first groove 12 for clamping and embedding the longitudinal rib 31;

a plurality of pipe blocking clamps 5 are clamped at the first opening 11 along the axial direction of the PVC open pipe 1, each pipe blocking clamp 5 comprises an arc-shaped plate 51, a rib plate 52 and a blocking plate 53, the arc-shaped plate 51 is wrapped along the circumferential direction of the PVC open pipe 1 and blocks the outer side of the first opening 11, the rib plate 52 is fixed at the inner side of the arc-shaped plate 51 along the radial direction of the arc-shaped plate 51, one side of the rib plate 52, which is far away from the arc-shaped plate 51, is inserted into the first opening 11 and fixed onto the blocking plate 53, and the blocking plate 53 blocks the inner side of the first opening 11.

Specifically, the method comprises the following steps: the binding band 2 can adopt a steel wire rope or a binding band and the like; the blocking pipe clamp 5 is an e-shaped PVC pipe clamp, the inner diameter of the arc-shaped plate 51 is equal to the outer diameter of the PVC open pipe 1, the arc length of the arc-shaped plate 51 is more than three times of the opening width D of the first opening 11, the arc width is 10cm, the wall thickness is equal to the wall thickness of the PVC open pipe 1, the rib plate 52 is a rectangular rib plate, the plate thickness is less than or equal to the opening width D of the first opening 11, in order to ensure the blocking tightness, the opening width D is preferably equal to the arc width D of the arc-shaped plate 51, the length is equal to the arc width of the arc-shaped plate 51, the width is equal to the wall thickness of the PVC open pipe, the plate thickness of the clamping plate 53 is equal to the wall thickness of the PVC open pipe 1, the length is equal to the arc width of the arc-shaped plate 51, and the opening width D of the first opening 11 with the width being 1.25 times is adopted to prevent the blocking pipe clamp 5 from being separated from the PVC open pipe 1.

As a preferred embodiment, for the convenience of transportation and installation, the PVC open pipe 1 is made by splicing a plurality of 4m long PVC open pipe sections, which can be cut by a pipe cutter, and each PVC open pipe section is provided with the first opening 11 and the first groove 12. The PVC open pipe sections of adjacent sections are spliced and connected through butt joint pipes. The butt joint pipes are divided into a plurality of direct pipes only used for butt joint of adjacent sections of the PVC open pipe sections and a plurality of T-shaped three-way pipes 7 used for butt joint of adjacent sections of the PVC open pipe sections and simultaneously converging into the lead of the sensor 4, each direct pipe and each T-shaped three-way pipe 7 are respectively provided with a second opening 8 consistent with the width of the first opening 11 and a second groove matched with the first groove 12 along the corresponding pipeline direction, the opening width D of the first opening 11 and the opening width D of the second opening 8 are related to the diameter of the lead 41 so as to be aligned with converging into the lead 41, in the embodiment, the opening width D is 4mm-8mm, and the sizes of the first groove 12 and the second groove are related to the diameter of the longitudinal rib 31 so as to reliably fix the PVC open pipe 1 on the longitudinal rib 31.

Further, referring to fig. 6 to 8, since the sensor group includes a plurality of sensors 4 and the plurality of sensors 4 are spaced apart from each other in the reinforcement cage 3, the number of wires 41 that are led into the PVC open pipe 1 is changed according to the installation of the sensors 4, in order to adapt to different numbers of wires 41, the embodiment is provided with two types of PVC open pipe sections, including a large-diameter PVC open pipe section 1 'with the outer diameter of 5.0cm and the wall rear part of 4.0mm and a small-diameter PVC open pipe section 1' with the outer diameter of 2.5cm and the wall rear part of 4.5mm, correspondingly, two types of direct pipes, namely a same-diameter direct pipe 61 and a reducing direct pipe 62 are arranged, wherein, the same diameter direct connection pipe 61 comprises two specifications (i.e. two specifications including 5.0cm and 2.5cm inner diameters) with the inner diameter respectively equal to the outer diameter of the large diameter PVC open pipe section 1' and the outer diameter of the small diameter PVC open pipe section 1 ″, and the reducing direct pipe 62 itself has two inner diameters of 5.0cm and 2.5 cm. The adjacent large-diameter PVC open pipe sections 1 'and the adjacent small-diameter PVC open pipe sections 1' are butted through the same-diameter direct connecting pipes 61 with the matched sizes, and the adjacent large-diameter PVC open pipe sections 1 'and the small-diameter PVC open pipe sections 1' are spliced through the reducing direct pipes 62. Wherein, the wall thickness of the same-diameter direct connecting pipe 61 is equal to the wall thickness of the corresponding large-diameter PVC opening pipe section 1 'or the small-diameter PVC opening pipe section 1 ″, and the wall thickness of the reducing direct pipe 62 is equal to the wall thickness of the large-diameter PVC opening pipe section 1'. In addition, the T-shaped three-way pipe 7 also comprises two specifications which are respectively matched with the large-diameter PVC opening pipe section 1 'and the small-diameter PVC opening pipe section 1' in size, namely two specifications of 2.5cm, 1.5mm wall thickness, 5.0cm inner diameter and 4mm wall thickness.

In a preferred embodiment, the arc plate 51 is recessed inward along the circumferential direction and forms a second groove 54 for the band 2 to be engaged.

As a preferred embodiment, the wire 41 is provided with a redundant segment, generally 1.5m to 2.0m, extending out of the PVC open pipe 1 by a certain length, a protection pipe 9 for sleeving the redundant segment is fixed on the reinforcement cage 3, and two ends of the protection pipe 9 are provided with blocking structures. Specifically, the protection tube 9 is a steel tube, and after the protection tube is sleeved on the redundant section, the protection tube is welded and fixed on the reinforcement cage 3 along the axial direction of the PVC pipe, and simultaneously, the two ends of the protection tube 9 are plugged to prevent slurry or concrete from entering the protection tube 9 when the underground continuous wall is poured.

A method for installing a sensor group lead protection device in a reinforcement cage, which is shown in fig. 1 and 8, comprises the following steps:

1. and providing a sensor group lead protection device in the reinforcement cage.

2. The PVC open pipe 1 is placed along the longitudinal ribs 31 of the reinforcement cage 3. For the PVC open pipe 1 with the multi-section splicing structure, the specification of the PVC open pipe section is reasonably selected according to the wiring condition of the sensor 4, and the PVC open pipe sections and the corresponding butt joint pipes are sequentially placed according to a certain sequence.

3. The sensor set is installed from one end to the other end of the reinforcement cage 3, the wires 41 are gathered into the PVC open pipe from the first openings 11, one blocking pipe clamp 5 is clamped at certain intervals, and the PVC open pipe is fixed on the longitudinal rib 31 of the reinforcement cage 3 by the binding band 2 at each blocking pipe clamp 5. When the sensor group is installed, the sensor group and the lead 41 can be wound by using a wire coil in advance, and then the wire coil is fixed at one end of the reinforcement cage 3, so that the installation of the sensor group is facilitated, and the winding and knotting of the lead 41 during the wiring operation in the reinforcement cage 3 in the installation process are prevented. For the PVC open pipe 1 with a multi-section splicing structure, the installation position of each sensor 4 should correspond to the splicing position of the PVC open pipe section, a T-shaped three-way pipe 62 with corresponding specification should be installed at the corresponding splicing position so as to be better converged into the lead 41, and a direct pipe with corresponding specification should be installed at the splicing position which does not correspond to the installation position of the sensor 4 so as to realize the butt joint of the corresponding adjacent PVC open pipe sections.

4. After the sensor group is installed, the reinforcement cage with the sensor group and the PVC open pipe 1 is hoisted and lowered to the installation positions of the ultra-deep underground diaphragm wall and the like, as shown in FIG. 8.

As a preferred embodiment, after the sensor group is installed and before the reinforcement cage is hoisted:

extending the lead wire 41 out of the PVC open pipe 1 for a certain length and forming a redundant segment;

establish a protection tube 9 in this redundant section outside cover, fix this protection tube 9 to this steel reinforcement cage 3 on, carry out the shutoff through block structure with the both ends of this protection tube 9 and handle.

The invention can realize the quick installation of monitoring devices such as a sensor group and the like, effectively improves the wiring efficiency of the sensor group and the like, reduces the working time of installation personnel in the reinforcement cage, avoids delaying the hoisting construction of the reinforcement cage due to overlong installation time, improves the construction efficiency and the construction safety, accelerates the construction period and reduces the construction difficulty.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.