CN218719258U - Anti vertical drawknot device that floats of long distance push pipe construction - Google Patents

Abstract

The utility model discloses an anti vertical drawknot device that floats of long distance pipe-jacking construction sets up in the socket and the socket of tube coupling for carry out vertical drawknot with two sections tube couplings, anti vertical drawknot device that floats of long distance pipe-jacking construction includes pre-buried steel sheet, bolt base and drawknot bolt, every the tube coupling surface is provided with pre-buried steel sheet, the bolt base sets up on the pre-buried steel sheet, one drawknot bolt stretch-draw connects two bolt bases on two sections tube couplings, the utility model discloses an anti vertical drawknot device that floats can connect into whole with all tube couplings, has greatly improved tube coupling longitudinal stiffness and wholeness, can effectively restrain the soft weak stratum pipe-jacking come-up of shallow earthing.

Description

Anti vertical drawknot device that floats of long distance push pipe construction

Technical Field

The utility model relates to an anti vertical drawknot field that floats of pipe jacking construction. More specifically, the utility model relates to an anti vertical drawknot device that floats of long distance push pipe construction.

Background

In recent years, with the continuous development of pipe jacking construction technology, the pipe jacking method is more and more applied to the construction of urban underground pipelines, and the overall pipe jacking method has the characteristics of long underpass distance, large pipe joint section, complex underpass stratum and the like. When the jacking pipe passes through a soft stratum such as a river, a lake and the like under water and shallow earth covering, the jacking pipe is resistant to floating, which is one of the technical problems to be solved. If the anti-floating measures are not proper, the pipe joints are seriously arched, the quality of the formed tunnel is further influenced, and jacking failure can be more seriously caused.

At present, the construction measure for resisting the floating of the jacking pipe is to press weight in a pipe joint and is matched with measures such as pipe bottom slurry discharge, pipe top slurry injection, soil body reinforcement on the pipe top and the like, all the measures are taken after the pipe joint has a floating trend, huge manpower, material resources and financial resources are consumed, and sometimes an obvious anti-floating effect is not achieved. In view of the above, it is necessary to develop an anti-floating device which can effectively suppress the floating tendency of the pipe joints and can greatly save labor cost and economic cost.

SUMMERY OF THE UTILITY MODEL

In order to realize the utility model discloses a these purposes and other advantages, the utility model discloses a preferred embodiment provides an anti vertical drawknot device that floats of long distance push pipe construction sets up in the socket department and the socket department of tube coupling for carry out vertical drawknot with two sections tube couplings, the anti vertical drawknot device that floats of long distance push pipe construction includes pre-buried steel sheet, bolt base and drawknot bolt, every the tube coupling surface is provided with pre-buried steel sheet, the bolt base sets up on the pre-buried steel sheet, one two bolt bases of drawknot bolt stretch-draw connection on two sections tube couplings.

According to the utility model discloses a preferred embodiment, pre-buried steel sheet has a plurality ofly, along the external diameter annular of tube coupling distributes.

According to the utility model discloses a preferred embodiment, the drawknot bolt includes drawknot screw rod and drawknot nut, be provided with the mounting hole on the bolt base, drawknot screw rod both ends are passed respectively mounting hole on the bolt base, stretch out drawknot screw rod both ends the part of mounting hole is provided with the drawknot nut respectively to carry out spacing fixed.

According to the utility model discloses a preferred embodiment, it is a plurality of pre-buried steel sheet passes through the annular welding of anchor muscle on the tube coupling.

According to the utility model discloses a preferred embodiment, the bolt base includes first bed plate and second bed plate, first bed plate is square, the second bed plate is triangle-shaped, first bed plate connect perpendicularly in pre-buried steel sheet, two right-angle sides of second bed plate connect respectively in first bed plate with pre-buried steel sheet.

According to a preferred embodiment of the present invention, the drawknot screw is parallel to the direction of the jacking axis of the pipe joint.

According to the utility model discloses a preferred embodiment, it is a plurality of buried steel plate is followed the tube coupling hoop and is evenly set up according to 60 contained angles.

The utility model discloses at least, include following beneficial effect: the utility model discloses an anti vertical drawknot device that floats can connect into whole with all tube couplings, has greatly improved the longitudinal rigidity of tube coupling and wholeness, can effectively restrain shallow earthing weak stratum push pipe come-up.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is the overall structure schematic diagram of the anti-floating longitudinal tie device for long-distance pipe-jacking construction in one embodiment of the utility model.

Fig. 2 is the utility model discloses an embodiment in long distance push pipe construction anti-hoop of floating vertical drawknot device arrange the schematic diagram.

Fig. 3 is a front view of a bolt base according to an embodiment of the present invention.

Fig. 4 is a top view of a bolt base according to an embodiment of the present invention.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1-4, the utility model discloses an anti vertical drawknot device that floats of long distance push pipe construction sets up in the socket department and the socket department of tube coupling for carry out vertical drawknot with two sections tube couplings 4, the anti vertical drawknot device that floats of long distance push pipe construction includes pre-buried steel sheet 1, bolt base 2 and drawknot bolt 3, every 4 surfaces of tube coupling are provided with pre-buried steel sheet 1, bolt base 2 sets up on the pre-buried steel sheet 1, one two bolt bases 2 of drawknot bolt 3 stretch-draw connection on two sections tube couplings 4.

In the embodiment, the two bolt bases 2 on the two sections of pipe joints 4 are connected by the tie bolts 3, so that the connection of the two adjacent sections of pipe joints 4 is realized, and similarly, all the pipe joints can be connected into a whole by the aid of the anti-floating longitudinal tie devices, the longitudinal rigidity and the integrity of the pipe joints are greatly improved, and the floating of the top pipe of the shallow-soil soft stratum can be effectively inhibited. The embedded steel plate 1 can be a plane or a slightly arc, if the area of the embedded steel plate 1 is smaller, the embedded steel plate can be the plane, otherwise, the embedded steel plate is preferably an arc plate matched with the radian of the pipe joint.

The embedded steel plate 1 is connected to the pipe joints in an embedded mode in the pipe joint prefabricating stage, the bolt base 2 is mainly used for fixing the tie bolts 3, welding of the bolt base 2 can be performed after prefabrication of the pipe joints in a pipe joint factory is completed, and welding can also be performed on site after the pipe joints enter a field.

In another embodiment, the embedded steel plates 1 are multiple and are distributed annularly along the outer diameter of the pipe joint 4. Therefore, the pipe joints 4 can be connected in a circumferential and uniform tensioning manner, and closer connection is realized.

In another embodiment, the tie bolt 3 includes a tie screw 301 and a tie nut 302, the bolt base 2 is provided with a mounting hole, two ends of the tie screw 301 respectively pass through the mounting hole on the bolt base 2, and portions of two ends of the tie screw 301 extending out of the mounting hole are respectively provided with the tie nut 302 for limiting and fixing.

In the above embodiment, the drawknot nut 302 is screwed at both ends of the drawknot screw 301, and the drawknot nut 302 is screwed inward, thereby achieving tension between the two pipe joints 4.

The drawknot bolt 3 is positioned at the socket joint of the front and the rear pipe sections and is fixed through a bolt fixing base at the socket, and the socket joints of the two pipe sections are drawknot through 6 bolts. All the pipe joints are tied through the tie bolts along the jacking axis direction, and all the pipe joints are connected into a whole, so that the longitudinal rigidity and the integrity of the pipe joints are greatly improved, and the floating of the shallow-earthing weak stratum jacking pipe can be effectively inhibited.

In another embodiment, a plurality of the embedded steel plates 1 are annularly welded on the pipe joints through anchoring ribs 101. The welding is adopted here more firmly, and the shape of anchor muscle 101 is not restricted, and any form can, and the one end of anchor muscle 101 is connected in pre-buried steel sheet 1, and the other end is connected on tube coupling 4.

The concrete structure of a bolt base is provided in another embodiment, bolt base 2 includes first bed plate 201 and second bed plate 202, first bed plate 201 is square, second bed plate 202 is triangle-shaped, first bed plate 201 connect perpendicularly in pre-buried steel sheet 1, two right-angle sides of second bed plate 202 equally divide do not connect in first bed plate 201 with pre-buried steel sheet 1.

In another embodiment, the drawknot screw 301 is parallel to the direction of the jacking axis of the pipe joint 4, so that the consistency of the pulling force and the jacking direction is realized, and the additional influence on the screw or the pipe joint caused by the inconsistency of the pulling force and the jacking direction can be reduced.

In another embodiment, the embedded steel plates 1 are uniformly arranged along the circumferential direction of the pipe joint at an included angle of 60 degrees, that is, the socket and the socket of the pipe joint are respectively and uniformly provided with 6 embedded steel plates, and the uniform part can ensure that the circumferential tension of the pipe joint is uniform.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (7)

1. The utility model provides an anti vertical drawknot device that floats of long distance push pipe construction sets up in the socket and the bellmouth of tube coupling for carry out vertical drawknot with two sections tube couplings, a serial communication port, the anti vertical drawknot device that floats of long distance push pipe construction includes pre-buried steel sheet, bolt base and drawknot bolt, every the tube coupling surface is provided with pre-buried steel sheet, bolt base sets up on the pre-buried steel sheet, one two bolt bases of drawknot bolt stretch-draw connection on two sections tube couplings.

2. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 1, wherein a plurality of pre-buried steel plates are annularly distributed along the outer diameter of the pipe joint.

3. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 1, wherein the tie bolt comprises a tie screw and a tie nut, the bolt base is provided with a mounting hole, two ends of the tie screw respectively penetrate through the mounting hole on the bolt base, and parts of two ends of the tie screw extending out of the mounting hole are respectively provided with the tie nut for limiting and fixing.

4. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 2, wherein a plurality of the embedded steel plates are annularly welded on the pipe joints through anchoring ribs.

5. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 2, wherein the bolt base comprises a first base plate and a second base plate, the first base plate is square, the second base plate is triangular, the first base plate is vertically connected to the pre-buried steel plate, and two right-angle sides of the two second base plates are respectively connected to the first base plate and the pre-buried steel plate.

6. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 3, wherein the tie screw is parallel to the jacking axis direction of the pipe joint.

7. The anti-floating longitudinal tie device for long-distance pipe jacking construction according to claim 3, wherein the embedded steel plates are uniformly arranged along the circumferential direction of the pipe joint at an included angle of 60 degrees.

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