CN202834386U - Three-dimensional hyperbolic steel pipe jacking axis formed transitional device - Google Patents

Abstract

The utility model relates to the technical field of steel pipe jacking construction, in particular to a transition device for forming the axis of a three-dimensional hyperbolic steel pipe jacking. A plurality of transition pipes are connected in series between the pipe jacking machine and the steel pipe jacking. Two of the transition pipes A socket and a socket are respectively provided at the ends, and two adjacent transition pipes are connected by bolts, and the socket of one transition pipe is inserted into the socket of the other transition pipe. The utility model arranges several transition pipes between the pipe jacking machine and the steel pipe jacking, so that the pipe jacking machine can return to the design axis in time after the deviation is corrected, so that the deviation correction of the steel pipe jacking construction can achieve a good effect and ensure the jacking of the steel pipe. The accuracy of the axis greatly reduces the risk of the steel pipe jacking project.

Description

Three-dimensional hyperbolic steel pipe jacking axis forming transition device

technical field

The utility model relates to the technical field of steel pipe jacking construction, in particular to a three-dimensional hyperbolic steel pipe jacking axis forming transition device. the

Background technique

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, 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 construction technology is a non-excavation technology for laying underground pipelines that better protects the environment. Under the condition of not disturbing or slightly disturbing the soil structure outside the pipe, with the help of the thrust of the jacking equipment such as the main jacking pump, the tool pipe or roadheader is passed from the working well through the soil layer along the line and enters the receiving well; at the same time, The construction technology of laying underground pipelines is to connect and bury the following pipelines in sequence in the pipeline soil layer connecting the two wells. the

At present, in steel pipe jacking construction, when the jacking direction deviates from the design axis, the jacking direction needs to be corrected by the pipe jacking machine, and the pipe behind the pipe jacking machine will bend during the jacking process to achieve the purpose of deviation correction. Since the steel pipe being jacked is welded into a whole, it is not easy to be bent. After the pipe jacking machine is corrected, it is pulled by the steel pipe behind. Cause engineering quality accidents. the

Utility model content

The technical problem to be solved by the utility model is to provide a three-dimensional hyperbolic steel pipe jacking axis forming transition device. By setting several transition pipes between the pipe jacking machine and the steel pipe jacking machine, the pipe jacking machine can return in time after the deviation is corrected. The design of the axis can make the deviation correction of the steel pipe jacking construction achieve good results, ensure the accuracy of the axis of the steel pipe jacking, and greatly reduce the risk of the steel pipe jacking project. the

In order to solve the above technical problems, a three-dimensional hyperbolic steel pipe jacking axis forming transition device is characterized in that: a plurality of transition pipes are connected in series between the pipe jacking machine and the steel pipe jacking, and the two ends of the transition pipes are respectively set There are sockets and sockets, and two adjacent transition pipes are connected by bolts, and the socket of one transition pipe is inserted into the socket of the other transition pipe. the

Stiffening rings are respectively provided at the ends of the socket and the socket, and longitudinal stiffening plates are arranged between the stiffening rings and the transition pipe; wedge-shaped pads are placed between the stiffening rings of the socket and the socket. the

Three transition pipes are arranged between the pipe jacking machine and the steel pipe jacking, and the length of the transition pipes is 3.5 meters. the

Two O-shaped water-stop rubbers are arranged between the socket and the socket. the

A plurality of deviation correcting oil cylinders are arranged between the sockets of two adjacent transition pipes and the stiffening rings of the sockets. the

Compared with the prior art, the utility model sets several transition pipes between the pipe jacking machine and the steel pipe jacking, so that the pipe jacking machine can return to the design axis in time after the deviation is corrected, and the deviation correction of the steel pipe jacking construction can be achieved. Good effect, ensure the accuracy of the axis of the pipe jacking just now, and greatly reduce the risk of the steel pipe jacking project. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

FIG. 2 is a partially enlarged view of the circled portion in FIG. 1 . the

In the figure: 1. Pipe jacking machine, 2. Transition pipe, 3. Steel pipe jacking, 4. Socket, 5. Socket, 6. Stiffening ring, 7. Wedge block, 8. Bolt, 9. Longitudinal stiffening Board, 10.O-type water-stop rubber. the

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 and 2, a three-dimensional hyperbolic steel pipe jacking axis forms a transition device, and a plurality of transition pipes 2 are connected in series between the pipe jacking machine 1 and the steel pipe 3, and the two transition pipes 2 Socket 4 and socket 5 are respectively provided at the ends, and the ends of the socket 4 and socket 5 are respectively provided with a stiffening ring 6, and a longitudinal stiffening plate 9 is arranged between the stiffening ring 6 and the transition pipe 2, which increases The hoop stiffness of the transition pipe joint reduces the deformation of the transition pipe joint during jacking, and the longitudinal stiffener is set to increase the stiffness of the transition pipe to withstand axial force. the

The socket 4 of one of the two adjacent transition pipes 2 is inserted into the socket 5 of the other transition pipe 2, and a wedge-shaped spacer is placed between the socket 4 and the stiffening ring 6 of the socket 5 7, and connected by bolts 8 to improve the axial force transmission of the transition pipe to prevent the deformation and instability of the transition pipe under uneven pressure; on the one hand, the placement of wedge-shaped pads 7 can compensate for the unevenness of the end surface of the stiffening ring 6 , to increase the uniformity of the force, on the other hand, it can make it have a certain deformation capacity when it is repeatedly loaded, and can adapt to the inclination angle formed by the end face of the pipeline when the curve is jacked, and can maintain the opening between the transition pipes. the

Three transition pipes 2 are arranged between the pipe jacking machine 1 and the steel pipe jacking 3, and the length of the transition pipes 2 is 3.5 meters. the

Two O-shaped water-stop rubbers 10 are arranged between the socket 4 and the socket 5 . This setting not only satisfies the relative movement of the socket, but also plays a water-stopping effect. the

Between the socket 4 of the two adjacent transition pipes 2 and the stiffening ring 6 of the socket 5, a plurality of correction oil cylinders are arranged to meet the omnidirectional correction of the head when the head is corrected. When the jacking pipe enters the curve section, it can be started at the same time The machine head deviation correction oil cylinder and hinged pipe oil cylinder, and the wooden pad is gradually padded to the design thickness, forming an overall bending arc and starting to bend. the

The basic principles and main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned implementation regulations. What is described in the above-mentioned implementation regulations and instructions is only used to illustrate the principle of the utility model. Without departing from the principle and scope of the utility model, The utility model also has various changes and improvements, and these changes and improvements all belong to the scope of the claimed utility model. the

The scope of protection required by the utility model is defined with the appended claims and other equivalents. the

Claims (5)

1. a three-dimensional hyperbolic steel pipe jacking axis forms a transition device, characterized in that: a plurality of transition pipes (2) are connected in series between the pipe jacking machine (1) and the steel pipe jacking (3), and the transition pipes The two ends of (2) are respectively provided with a socket (4) and socket (5), and the two adjacent transition pipes (2) are connected by bolts (8), and the socket (4) of one of the transition pipes (2) ) into the socket (5) of another transition tube (2). 2. The three-dimensional hyperbolic steel pipe jacking axis forming transition device according to claim 1, characterized in that: the ends of the socket (4) and the socket (5) are respectively provided with stiffening rings (6), the A longitudinal stiffening plate (9) is arranged between the stiffening ring (6) and the transition pipe (2); a wedge-shaped spacer ( 7). 3. The three-dimensional hyperbolic steel pipe jacking axis forming transition device according to claim 1 or 2, characterized in that: three transitions are set between the pipe jacking machine (1) and the steel pipe jacking (3) Pipe (2), the length of the transition pipe (2) is 3.5 meters. 4. The three-dimensional hyperbolic steel pipe jacking axis forming transition device according to claim 1 or 2, characterized in that: two O-shaped water-stop rubbers ( 10). 5. The three-dimensional hyperbolic steel pipe jacking axis forming transition device according to claim 1 or 2, characterized in that: the stiffening circles of sockets (4) and sockets (5) of two adjacent transition pipes (2) A plurality of deviation-correcting oil cylinders are arranged between the rings (6). the

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