Splicing type rectangular pipe jacking piece

Abstract

The utility model discloses a splicing type rectangular pipe jacking pipe piece which comprises an upper pipe piece section and a lower pipe piece section, a left clamping groove is formed in the lower end face of the left side wall of the upper pipe piece section, a right clamping groove is formed in the lower end face of the right side wall of the upper pipe piece section, a left clamping protrusion is arranged on the upper end face of the left side wall of the lower pipe piece section, and a right clamping protrusion is arranged on the upper end face of the right side wall of the lower pipe piece section. The left clamping protrusion is inserted into the left clamping groove and sealed through a left sealing rubber strip, and the right clamping protrusion is inserted into the right clamping groove and sealed through a right sealing rubber strip. A left sealing connector is arranged at the splicing position of the left clamping groove and the left clamping protrusion and comprises a left grouting opening formed in the surface of the left clamping groove, a left grouting pipe is pre-buried in the left side wall of the upper segment section, one end of the left grouting pipe is connected with the left grouting opening, and the other end of the left grouting pipe is connected with the right grouting opening. The other end of the right clamping groove extends to the right side of the left side wall of the upper pipe piece section and is used for being connected with a sealing filler grouting pump, and a right sealing connector is arranged at the splicing position of the right clamping groove and the right clamping protrusion. The spliced rectangular pipe jacking piece is good in waterproof effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of rectangular jacking pipes, and in particular relates to a spliced rectangular jacking pipe segment. Background Art

[0002] With the rapid development of urban construction, subways have gradually become one of the main public transportation modes in cities. However, traditional subway construction methods will affect the city’s ground transportation. Therefore, trenchless technology has gradually become one of the key research directions of subway construction, including rectangular pipe jacking technology. Rectangular pipe jacking is widely used for its advantages such as effective use of space and better adaptability.

[0003] Due to their large size and heavy weight, rectangular jacking pipe segments are currently generally spliced together from multiple segment segments to form a spliced rectangular jacking pipe segment. During the actual construction of the spliced rectangular jacking pipe segments, it is generally necessary to splice multiple segment segments in the jacking pipe well. In order to prevent external water and soil from entering the tunnel during construction, special attention should be paid to the waterproof effect of the joints of the segment segments to prevent affecting the construction progress.

[0004] At present, for most of the spliced rectangular jacking pipe segments, the splicing parts of the pipe segment segments are sealed with sealing strips, but the use of sealing strips alone for sealing still has the problem of poor waterproof effect. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the utility model provides a spliced rectangular jacking pipe segment, which has good waterproof effect.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A spliced rectangular top pipe segment, comprising an upper pipe segment segment with openings at the front end, the rear end and the lower end, and a lower pipe segment segment with openings at the front end, the rear end and the upper end, wherein the lower end face of the left side wall of the upper pipe segment is provided with a left clamping groove, and the lower end face of the right side wall is provided with a right clamping groove, the upper end face of the left side wall of the lower pipe segment is provided with a left clamping protrusion matched with the left clamping groove, and the upper end face of the right side wall is provided with a right clamping protrusion matched with the right clamping groove, the left clamping protrusion is inserted into the left clamping groove and sealed by a left sealing strip, and the right The clamping protrusion is inserted into the right clamping groove and sealed by the right sealing strip; a left sealing joint is provided at the joint of the left clamping groove and the left clamping protrusion, and the left sealing joint includes a left grouting port opened on the surface of the left clamping groove, and a left grouting pipe is pre-buried in the left side wall of the upper pipe segment segment, one end of the left grouting pipe is connected to the left grouting port, and the other end extends to the right side of the left side wall of the upper pipe segment segment and is used to connect the sealing filler grouting pump, and a right sealing joint with the same structure as the left sealing joint is provided at the joint of the right clamping groove and the right clamping protrusion.

[0008] Furthermore, the other end of the left grouting pipe is connected to the sealing filler grouting pump through a left grouting valve, and the left grouting valve is fixed at a corresponding position on the right side surface of the left side wall of the upper pipe segment segment.

[0009] Furthermore, the left sealing joint also includes a left humidity sensor, and the upper pipe segment is also provided with a left accommodating groove on the surface of the left clamping groove. The left humidity sensor is adapted to the shape and size of the left accommodating groove and is installed in the left accommodating groove. The left humidity sensor is connected to the signal input end of the left controller, and the signal output end of the left controller is connected to the left alarm.

[0010] Furthermore, the left humidity sensor is connected to the left controller via a left humidity data acquisition line pre-buried in the left side wall of the upper tube segment.

[0011] Furthermore, the left alarm is a left warning light, the left controller is integrated on the left warning light, and the left warning light is fixed at a corresponding position on the right side surface of the left side wall of the upper pipe segment segment.

[0012] Furthermore, the left warning light is provided with electric energy by a left solar panel, and the left solar panel is fixed at a corresponding position on the right side surface of the left side wall of the upper tube segment.

[0013] Furthermore, the left humidity sensor and the left grouting port are located on the same surface of the left clamping groove, and the left humidity sensor is located below the left grouting port.

[0014] Furthermore, the cross-sections of the left locking protrusion and the right locking protrusion are both isosceles trapezoidal in shape.

[0015] Furthermore, the acute angle between the left surface of the left clamping protrusion and the plane where the upper end surface of the left side wall of the lower pipe segment is located is controlled to be 70-80°.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The spliced rectangular top pipe segment in the utility model comprises an upper pipe segment whose front end, rear end and lower end are all open, and a lower pipe segment whose front end, rear end and upper end are all open. A left clamping groove is provided on the lower end face of the left wall of the upper pipe segment, and a right clamping groove is provided on the lower end face of the right wall. A left clamping protrusion matching the left clamping groove is provided on the upper end face of the left wall of the lower pipe segment, and a right clamping protrusion matching the right clamping groove is provided on the upper end face of the right wall. The left clamping protrusion is inserted into the left clamping groove and is sealed by a left sealing strip. The left clamping protrusion is inserted into the right clamping groove and sealed by the right sealing strip; a left sealing joint is provided at the joint of the left clamping groove and the left clamping protrusion, and the left sealing joint includes a left grouting port opened on the surface of the left clamping groove, and a left grouting pipe is pre-buried in the left side wall of the upper pipe segment, one end of the left grouting pipe is connected with the left grouting port, and the other end extends to the right side of the left side wall of the upper pipe segment and is used to connect the sealing filler grouting pump, and a right sealing joint with the same structure as the left sealing joint is provided at the joint of the right clamping groove and the right clamping protrusion. For the joint between the left clamping groove and the left clamping protrusion, firstly, a preliminary sealing is performed with the left sealing strip to achieve the preliminary waterproof purpose, and then the sealing filler grouting pump pumps the sealing filler to the joint between the left clamping groove and the left clamping protrusion through the left grouting pipe and the left grouting port in turn, so as to further improve the sealing and waterproof performance of the joint between the left clamping groove and the left clamping protrusion, thereby improving the sealing and waterproof performance of the joint between the lower end face of the left side wall of the upper segment segment and the upper end face of the left side wall of the lower segment segment. Similarly, the sealing and waterproof performance of the joint between the lower end face of the right side wall of the upper segment segment and the upper end face of the right side wall of the lower segment segment can be further improved through the right sealing joint, so that during the construction process, external water and soil are not easy to enter the tunnel through the joint between the upper segment segment and the lower segment segment, thereby improving the waterproof performance of the spliced rectangular jacking pipe segment, and the spliced rectangular jacking pipe segment has a good waterproof effect.

[0018] In the utility model, the left sealing joint also includes a left humidity sensor, and the upper pipe segment is also provided with a left accommodating groove on the surface of the left clamping groove. The left humidity sensor is adapted to the shape and size of the left accommodating groove and is installed in the left accommodating groove. The left humidity sensor is connected to the signal input end of the left controller, and the signal output end of the left controller is connected to the left alarm. In this way, the humidity at the joint of the left clamping groove and the left clamping protrusion is detected in real time by the left humidity sensor and transmitted to the left controller. The left controller compares the received humidity value with the humidity threshold value pre-stored in the left controller. If the humidity value received at a certain moment exceeds the humidity threshold value, the left controller controls the left alarm to sound an alarm, prompting the staff to open the left grouting valve and pump the sealing filler to the joint of the left clamping groove and the left clamping protrusion through the sealing filler grouting pump, so as to further improve the sealing and waterproof performance of the joint of the left clamping groove and the left clamping protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is the overall structural schematic diagram of the spliced rectangular pipe jacking segment in the present utility model;

[0020] Figure 2 is Figure 1 The structural schematic diagram of the left sealing joint provided at the splicing place of the left clamping groove and the left clamping protrusion in

[0021] Explanation of the reference numerals in the figure: 1. Upper segment of the segment, 101. Left clamping groove, 102. Right clamping groove, 2. Lower segment of the segment, 201. Left clamping protrusion, 202. Right clamping protrusion, 301. Left grouting port, 302. Left grouting pipe, 303. Left grouting valve, 304. Left humidity sensor, 305. Left humidity data acquisition line, 306. Left warning light, 307. Left solar panel. Specific embodiments

[0022] The following further elaborates in detail on the specific embodiments of the present utility model with reference to the accompanying drawings. These embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] In addition, in the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0026] Such as Figure 1As shown in the figure, a spliced rectangular pipe jacking segment includes an upper segment 1 with openings at the front end, rear end, and lower end, and a lower segment 2 with openings at the front end, rear end, and upper end. At the lower end surface of the left side wall of the upper segment 1, there is a left clamping groove 101, and at the lower end surface of the right side wall, there is a right clamping groove 102. At the upper end surface of the left side wall of the lower segment 2, there is a left clamping projection 201 adapted to the left clamping groove 101, and at the upper end surface of the right side wall, there is a right clamping projection 202 adapted to the right clamping groove 102. The left clamping projection 201 is inserted into the left clamping groove 101 and sealed with a left sealing strip, and the right clamping projection 202 is inserted into the right clamping groove 102 and sealed with a right sealing strip; as Figure 2 shown, at the splicing position of the left clamping groove 101 and the left clamping projection 201, there is a left sealing joint. The left sealing joint includes a left grouting port 301 opened on the surface of the left clamping groove 101. A left grouting pipe 302 is embedded in the left side wall of the upper segment 1. One end of the left grouting pipe 302 is connected to the left grouting port 301, and the other end extends to the right side of the left side wall of the upper segment 1 and is used to connect to a sealing filler grouting pump. At the splicing position of the right clamping groove 102 and the right clamping projection 202, there is a right sealing joint with the same structure as the left sealing joint.

[0027] For the splicing position of the left clamping groove 101 and the left clamping projection 201, first, a preliminary seal is performed with the left sealing strip to achieve a preliminary waterproof purpose. Secondly, the sealing filler grouting pump pumps the sealing filler into the splicing position of the left clamping groove 101 and the left clamping projection 201 through the left grouting pipe 302 and the left grouting port 301 in sequence, so as to further improve the sealing and waterproof performance of the splicing position of the left clamping groove 101 and the left clamping projection 201, and thus improve the sealing and waterproof performance of the splicing position of the lower end surface of the left side wall of the upper segment 1 and the upper end surface of the left side wall of the lower segment 2. Similarly, through the right sealing joint, the sealing and waterproof performance of the splicing position of the lower end surface of the right side wall of the upper segment 1 and the upper end surface of the right side wall of the lower segment 2 can be further improved. In this way, during the construction process, external water and soil are not easily introduced into the tunnel through the splicing position of the upper segment 1 and the lower segment 2. Therefore, the waterproof performance of this spliced rectangular pipe jacking segment can be improved, and the waterproof effect of this spliced rectangular pipe jacking segment is good.

[0028] In one embodiment,

[0029] The other end of the left grouting pipe 302 is connected to the sealing filler grouting pump through a left grouting valve 303, and the left grouting valve 303 is fixed at the corresponding position on the right side surface of the left side wall of the upper segment 1.

[0030] Among them, the left sealing joint further includes a left humidity sensor 304. The upper segment 1 of the segment also has a left accommodating groove on the surface of the left clamping groove 101. The left humidity sensor 304 is adapted to the shape and size of the left accommodating groove and is installed in the left accommodating groove. The left humidity sensor 304 is connected to the signal input end of the left controller, and the signal output end of the left controller is connected to the left alarm. In this way, the left humidity sensor 304 can detect the humidity at the joint of the left clamping groove 101 and the left clamping projection 201 in real time and transmit it to the left controller. The left controller compares the received humidity value with the humidity threshold pre-stored in the left controller. If the received humidity value exceeds the humidity threshold at a certain moment, the left controller controls the left alarm to give an alarm, prompting the staff to open the left grouting valve 303 and pump the sealing filler to the joint of the left clamping groove 101 and the left clamping projection 201 through the sealing filler grouting pump, so as to further improve the sealing and waterproof performance of the joint of the left clamping groove 101 and the left clamping projection 201. Among them, the left controller is a PLC left controller. Wherein, the humidity sensor transmits the detected humidity to the controller, and the controller compares the received humidity value with the humidity threshold pre-stored in the controller. If the received humidity value exceeds the humidity threshold, the controller controls the alarm to give an alarm, which belongs to the prior art. The inventive point of this embodiment lies in the installation position and installation method of the left humidity sensor 304. By installing the left humidity sensor 304 in the left accommodating groove on the surface of the left clamping groove 101, the left humidity sensor 304 can effectively detect the humidity at the joint of the left clamping groove 101 and the left clamping projection 201 without affecting the splicing of the left clamping groove 101 and the left clamping projection 201.

[0031] Preferably, the left humidity sensor 304 is connected to the left controller through a left humidity data acquisition line 305 embedded in the left side wall of the upper segment 1 of the segment.

[0032] Preferably, the left alarm is a left warning light 306. The left controller is integrated on the left warning light 306, and the left warning light 306 is fixed at the corresponding position on the right side of the left side wall of the upper segment 1 of the segment. Among them, the left warning light 306 is powered by a left solar panel 307, and the left solar panel 307 is fixed at the corresponding position on the right side of the left side wall of the upper segment 1 of the segment. In this way, the left alarm giving an alarm specifically means that the left warning light 306 lights up.

[0033] Preferably, the left humidity sensor 304 and the left grouting port 301 are on the same surface of the left clamping groove 101, and the left humidity sensor 304 is at the lower position of the left grouting port 301.

[0034] In one embodiment,

[0035] The cross-sections of the left clamping protrusion 201 and the right clamping protrusion 202 are both isosceles trapezoidal. In this way, the clamping effect between the left clamping protrusion 201 and the left clamping groove 101 is better, and the clamping effect between the right clamping protrusion 202 and the right clamping groove 102 is better.

[0036] Preferably, the acute angle between the left surface of the left clamping protrusion 201 and the plane where the upper end face of the left side wall of the lower segment of the segment is located is controlled within 70 - 80°.

[0037] In summary, through the left sealing joint, the sealing and waterproof performance of the splicing part between the lower end face of the left side wall of the upper segment of the segment 1 and the upper end face of the left side wall of the lower segment of the segment 2 can be further improved. Through the right sealing joint, the sealing and waterproof performance of the splicing part between the lower end face of the right side wall of the upper segment of the segment 1 and the upper end face of the right side wall of the lower segment of the segment 2 can be further improved. In this way, during the construction process, external soil and water are not easily introduced into the tunnel through the splicing part between the upper segment of the segment 1 and the lower segment of the segment 2. Therefore, the waterproof performance of the spliced rectangular pipe jacking segment can be improved. The spliced rectangular pipe jacking segment has a good waterproof effect and meets the actual engineering requirements and safety requirements.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A spliced rectangular pipe jacking segment, characterized in that: The invention comprises an upper tube segment (1) and a lower tube segment (2), wherein the lower end surface of the left side wall of the upper tube segment (1) is provided with a left clamping groove (101) and the lower end surface of the right side wall is provided with a right clamping groove (102), the upper end surface of the left side wall of the lower tube segment (2) is provided with a left clamping protrusion (201) and the upper end surface of the right side wall is provided with a right clamping protrusion (202), the left clamping protrusion (201) is inserted into the left clamping groove (101) and is sealed by a left sealing strip, and the right clamping protrusion (202) is inserted into the right clamping groove (102) and is sealed by a right sealing strip; the left clamping protrusion (201) is inserted into the left clamping groove (101) and is sealed by a right sealing strip; A left sealing joint is provided at the joint between the groove (101) and the left clamping protrusion (201), the left sealing joint comprising a left grouting port (301) opened on the surface of the left clamping groove (101), a left grouting pipe (302) is pre-buried in the left side wall of the upper pipe segment segment (1), one end of the left grouting pipe (302) is connected to the left grouting port (301), and the other end extends to the right side of the left side wall of the upper pipe segment segment (1) and is used to connect a sealing filler grouting pump, and a right sealing joint having the same structure as the left sealing joint is provided at the joint between the right clamping groove (102) and the right clamping protrusion (202).

2. A spliced rectangular pipe jacking segment according to claim 1, characterized in that: The other end of the left grouting pipe (302) is connected to a sealing filler grouting pump via a left grouting valve (303), and the left grouting valve (303) is fixed at a corresponding position on the right side surface of the left side wall of the upper pipe segment segment (1).

3. A spliced rectangular pipe jacking segment according to claim 1 or 2, characterized in that: The left sealing joint further comprises a left humidity sensor (304); the upper tube segment (1) is further provided with a left accommodating groove on the surface of the left clamping groove (101); the left humidity sensor (304) is adapted to the shape and size of the left accommodating groove and is installed in the left accommodating groove; the left humidity sensor (304) is connected to a signal input end of a left controller; and the signal output end of the left controller is connected to a left alarm.

4. A spliced rectangular pipe jacking segment according to claim 3, characterized in that: The left humidity sensor (304) is connected to the left controller via a left humidity data acquisition line (305) pre-buried in the left side wall of the upper pipe segment (1).

5. A spliced rectangular pipe jacking segment according to claim 3, characterized in that: The left alarm is a left warning light (306), the left controller is integrated on the left warning light (306), and the left warning light (306) is fixed to a corresponding position on the right side surface of the left side wall of the upper pipe segment segment (1).

6. The segment of the spliced rectangular pipe jacking pipe according to claim 5, characterized in that: The left warning light (306) is provided with electric energy by a left solar panel (307), and the left solar panel (307) is fixed at a corresponding position on the right side surface of the left side wall of the upper tube segment (1).

7. A spliced rectangular pipe jacking segment according to claim 3, characterized in that: The left humidity sensor (304) and the left grouting port (301) are located on the same surface of the left clamping groove (101), and the left humidity sensor (304) is located below the left grouting port (301).

8. A spliced rectangular pipe jacking segment according to claim 1, characterized in that: The cross-sections of the left locking protrusion (201) and the right locking protrusion (202) are both isosceles trapezoidal in shape.

9. A spliced rectangular pipe-jacking segment according to claim 8, characterized in that: The acute angle between the left surface of the left clamping protrusion (201) and the plane where the upper end surface of the left side wall of the lower tube segment (2) is located is controlled to be 70-80 degrees.

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