CN205479706U - Push pipe work jing ding advances structure - Google Patents

Abstract

The utility model relates to a jacking structure for a pipe jacking working well. The jacking structure consists of a well wall, a back seat wall, a jack, a measuring system, a horizontal jacking iron, a parallel jacking iron, a ring jacking iron, pipe joints, a water stop system at the entrance of a hole, and a track. , guide wheel and hoop; the jack is placed horizontally on the base, and the back seat of the jack is fixed on the wall of the back seat; the guide wheel and hoop are set on the track; the pipe joint is placed on the guide rail, and the horizontal top is placed between the jack and the pipe joint Iron, straight top iron, ring top iron; the measurement system is set on the base, and the water stop system is set at the hole position. The structure involved in the utility model has the characteristics of convenient disassembly and assembly, high construction efficiency, reduced friction between the track and the pipe joint, and provides auxiliary guiding and positioning for the pipe joint, and has good economic and technical benefits.

Description

Jacking structure of pipe jacking well

technical field

The utility model relates to a jacking structure for a pipe jacking working well.

technical background

With the development of urban construction, the underground space trenchless technology has attracted more and more attention and has been widely used. How to install and replace urban water supply and drainage, gas and communication facilities under the premise of minimal damage to the urban environment has put forward new requirements for underground engineering construction technology.

The pipe jacking technology is to use the hydraulic cylinder to jack the pipe jacking machine and the pipe joints to be laid underground one by one from the pipe jacking working well without excavating the surface, until the trenchless underground pipeline laying of the pipe jacking receiving well. construction process. At present, in the pipe jacking construction, on the one hand, the track of the pipe jacking is generally composed of two I-beams, the friction between the pipe and the track is large, and the pipe jacking joints are directly placed on the track without auxiliary limit devices. On the other hand, although waterproof treatment has been done at the contact between the entrance of the pipe joint and the well wall, single-layer plastic plates or plastic flanges are generally used, and the waterproof effect is poor.

In view of this, there is an urgent need to invent a kind of installation, which has a good water-stop effect at the hole, reduces friction between the track and the pipe joint, and provides an auxiliary guiding and positioning adjustment device for the pipe joint, which can adapt to pipe jacking work in pipe jacking construction of different specifications Well jacking structure.

Contents of the invention

The purpose of this utility model is to provide a pipe jacking working well jacking structure which is convenient for construction, reduces friction between rails and pipe joints, provides auxiliary guiding and positioning adjustment devices for pipe joints, and can adapt to pipe jacking construction of different specifications

In order to achieve the above object, the utility model adopts the following technical solutions:

The jacking structure of the pipe jacking well is characterized in that it consists of jacks, measuring systems, horizontal jacking irons, parallel jacking irons, ring jacking irons, pipe joints, hole water stop systems, tracks, guide wheels and hoops; the jacks are placed horizontally On the base, the back seat of the jack is fixed on the back seat wall; guide wheels and hoops are set on the track; the pipe joint is placed on the guide rail, and the horizontal top iron, straight top iron and ring top iron are placed between the jack and the pipe joint; the base The measurement system is set on the top, and the water stop system at the hole is set at the hole position.

Further, guide wheels are evenly arranged on the track in the direction of pipe joint jacking, the guide wheel bearings are fixed on the track, and the guide wheels can rotate along the pipe joint jacking direction.

The hole water stop system is composed of curtain rubber plate, ring plate, fan-shaped plate, bolts and embedded sleeve; the curtain rubber plate, ring plate and fan-shaped plate are stacked together and fixed on the well wall.

The bottom of the hoop is fixed on the track by high-strength bolts, and the top of the hoop can be fixed together by pulling the screw.

The utility model has the following characteristics and beneficial effects:

(1) The guide wheels are evenly arranged on the pipe jacking track, which reduces the friction between the track and the pipe joint, and is more conducive to the jacking construction of the pipe joint.

(2) A detachable hoop is set on the pipe jacking track to provide an auxiliary guiding and positioning adjustment device for pipe jacking. After the jacking of this pipe section is completed, remove the top screw of the hoop, and the hoop can be separated without affecting the next pipe section The installation ensures the stable jacking of pipe joints.

(3) A water-stop system is installed at the entrance of the hole. The water-stop system is composed of rubber plates, ring plates, and fan-shaped plates, and is fixed on the well wall through screw rods and pre-embedded sleeve connection structures. The construction is convenient and the water-stop effect is good.

Description of drawings

Fig. 1 is a schematic diagram of the jacking structure of the pipe jacking working well of the utility model;

Figure 2 is a detailed diagram of the water stop structure at the entrance of the cave;

Figure 3 is a detailed view of the track section;

In the figure: 1. well wall; 2. back seat wall; 3. jack back seat; 4. jack; 5. measuring system; 6. horizontal top iron; 7. parallel top iron; 8. ring top iron; section; 10. hole water stop system; 11. track; 12. concrete cushion; 13. gravel cushion; 14. base; 15. curtain rubber plate; 16. ring plate; 17. fan-shaped plate; ; 19. Embedded sleeve; 20. Embedded grouting pipe; 21. Hoop; 22. Screw; 23. Guide wheel; 24. High-strength bolt; 25. Guide wheel bearing shaft; 26. Embedded screw.

detailed description

In this embodiment, the steel structure welding process, the bolt connection construction process, the well wall formwork setting process and the concrete pouring construction process, etc. will not be repeated in this implementation, and the implementation of the utility model related to the structure will be emphasized.

Fig. 1 is a schematic diagram of the jacking structure of the pipe jacking working well of the utility model. Referring to Fig. 1, the jacking structure of the pipe jacking working well of the utility model mainly includes: jack 4, measuring system 5, horizontal jacking iron 6, parallel jacking iron 7, ring jacking iron 8, pipe joint 9, hole water stop system 10 , track 11, guide wheel 23, hoop 21.

Before erecting the jacking structure of the pipe-jacking working well, first lay a layer of sand and gravel cushion 13 at the bottom of the working well, pour a layer of concrete cushion 12 on the sand and gravel cushion, and pre-cast the backseat wall at the position where the jack 4 is placed on the well wall 2 and base 14.

As shown in Fig. 1, the jack 4 is placed horizontally on the base 14, the jack seat 3 is fixed on the seat wall 2; the guide wheel 23 and the hoop 21 are arranged on the track 11; the pipe joint 9 is placed on the track 11, and the jack 4 The horizontal top iron 6, the vertical top iron 7, and the ring top iron 8 are placed between the pipe joint 9; the measurement system 5 is set on the base 14, and the hole water stop system 10 is set at the hole position.

Referring to Fig. 2, the hole water stop system 10 is composed of curtain rubber plate 15, ring plate 16, fan-shaped plate 17, bolts 18, embedded sleeve 19; curtain rubber plate 15, ring plate 16, fan-shaped plate 17 stacked Put them together, and connect the structure with bolts 18 and embedded sleeves 19 and fix them at designated positions on the well wall.

Referring to Fig. 3, the guide wheel 23 is evenly arranged on the track 11 in the direction of pipe joint jacking, and the guide wheel bearing 25 is fixed on the track, and the guide wheel 23 can rotate along the pipe joint jacking direction; the bottom of the hoop 21 is passed through high-strength bolts 24 is fixed on the track 11, and the hoop 21 top is fixed together by the screw rod 22. After the jacking of this pipe joint is completed, the hoop top screw 22 is removed, and the hoop 21 can be separated.

Claims (4)

1. A jacking structure for a pipe jacking well, characterized in that it includes a jack (4), a measuring system (5), a horizontal top iron (6), a parallel top iron (7), a ring top iron (8), a pipe joint (9), hole water stop system (10), track (11), guide wheel (23) and hoop (21); the jack (4) is placed horizontally on the base (14), and the rear seat (3) of the jack is fixed On the rear seat wall (2); guide wheels (23) and hoops (21) are set on the track (11); the pipe joint (9) is placed on the guide rail (11), and the jack (4) and the pipe joint (9) The horizontal top iron (6), the horizontal top iron (7) and the ring top iron (8) are placed between them; the measurement system (5) is set on the base (14), and the hole water stop system (10) is set at the hole position. 2. The pipe jacking well jacking structure according to claim 1, characterized in that guide wheels (23) are evenly arranged on the track (11) in the direction of pipe joint jacking, and the guide wheel bearings (25) are fixed On the track (11), the guide wheel (23) can rotate along the pipe joint jacking direction. 3. The pipe jacking well jacking structure according to claim 1, characterized in that: the hole water stop system (10) consists of a curtain rubber plate (15), a ring plate (16), a sector plate (17 ), bolts (18) and embedded sleeves (19); the curtain rubber plate (15), ring plate (16) and fan-shaped plate (17) are stacked together, through the bolts (18) and embedded sleeves (19) The connecting structure is fixed on the well wall. 4. The pipe jacking well jacking structure according to claim 1, characterized in that: the bottom of the hoop (21) is fixed on the track (11) by high-strength bolts (24), and the hoop (21) The top can be fixed together by screw rods (22) to draw.