CN218882260U

CN218882260U - Ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole outlet water stop device

Info

Publication number: CN218882260U
Application number: CN202222268374.4U
Authority: CN
Inventors: 王新泉; 刁红国
Original assignee: Hangzhou Jiangrun Technology Co Ltd
Current assignee: Hangzhou Jiangrun Technology Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-04-18
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to an extra-deep earthing super large caliber overlength curve push pipe goes out hole watertight fittings, include: the device comprises a rubber water stop plate, a gasket, a check ring, a butter packing, a pre-embedded pull ring, a steel cable and a pre-embedded grouting pipe. The utility model has the advantages that: a structure of sealing a sealing check ring and a butter packing is adopted, so that multiple water-stopping protection is provided for the entry and exit of the jacking pipe; the bentonite slurry is injected into the hole through the pre-buried grouting pipe, so that the hole soil loss and ground subsidence caused by the advance of the pipe jacking machine and pipe joint 'back soil' are effectively prevented, the safety of the pipe jacking construction process is ensured, and the surrounding building and environment are effectively protected; the two steel cables are tightly connected with the concrete pipe joint, so that the pipeline is prevented from retreating, the attitude jacking trend, the jacking axis and the inner bottom elevation of the pipe jacking machine are effectively controlled, and the attitude of the pipe jacking machine is kept stable; the water stopping device for the outlet of the jacking pipe can effectively prevent the phenomenon of water gushing and sand gushing during the process of the inlet and outlet of the jacking pipe, and ensure the stability of soil.

Description

Ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole water stopping device

Technical Field

The utility model relates to a building engineering field specifically includes a super dark earthing super large bore overlength curve push pipe goes out hole watertight fittings.

Background

Along with the development of economy, the population gradually gathers towards cities, and more urban underground spaces are developed and utilized. Various municipal works such as sewer pipelines, electric pipelines, gas pipelines, transportation pipelines, urban underground common ditches and the like are carried forward, and the construction methods of the various municipal works mainly comprise open excavation and underground excavation.

Pipe jacking construction is a construction method for constructing underground pipelines developed after shield construction. It needs no surface layer excavation and can pass through highways, railways, rivers, ground buildings, underground structures, various underground pipelines and the like.

As the over-excavation, the correction and the continuous shearing friction to the soil body around the pipeline and the like are inevitably generated in the construction process, the natural balance state of the original soil body is changed by the actions, the change of the stress state, the physical and mechanical indexes of the soil layer and the like are generated, and the change can cause the stratum movement and the surface displacement. When the displacement exceeds a certain range, the safe use of the existing pipelines of the surrounding buildings and the underground is influenced, unnecessary economic loss is caused, and a series of rock-soil environmental problems are caused.

In conclusion, the problems of unsatisfactory water stopping effect and unstable soil bearing exist in the ultra-deep soil covering ultra-large caliber ultra-long curve jacking pipe construction process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the prior art, provide a super dark earthing super large bore overlength curve push pipe goes out hole watertight fittings.

The ultra-deep soil covering ultra-large caliber ultra-long curve top pipe hole outlet water stop device comprises a rubber water stop plate, a gasket, a check ring, a butter packing, a pre-buried pull ring, a steel cable and a pre-buried grouting pipe;

the circular ring plate is connected with the embedded ring plate through a stud; a rubber water stop plate is arranged between the embedded ring plate and the ring plate and fixedly connected with the embedded ring plate; a nut is also screwed on the embedded ring plate, and a gasket is arranged between the nut and the embedded ring plate; the ring plate is hinged with the turning plate through a shaft pin, the check ring is connected with the turning plate, and the butter packing is connected with the check ring; when the turning plate is turned to a position vertical to the hole, the retainer ring, the turning plate, the butter packing and the rubber water stop plate form a sealing structure together, and the hole is plugged by the sealing structure;

the two embedded pull rings form a group, the two embedded grouting pipes form a group, and a group of embedded pull rings and a group of embedded grouting pipes are arranged on two sides of the hole; each group of pre-buried pull rings is tensioned by a steel cable; respectively installing a cylindrical pin at the positions of hoisting holes on two sides of the cement pipe joint; one end of a steel cable on each side of the opening is connected with one embedded pull ring, the middle part of the steel cable is wound around the cylindrical pin on the side, and the other end of the steel cable is connected and tensioned with the other embedded pull ring in the same group.

Preferably, the method comprises the following steps: the embedded ring plate is arranged on the surface of the lining wall.

Preferably, the method comprises the following steps: the end part of the rubber water stop plate, which is not connected with the embedded ring plate, extends into the cement pipe joint.

Preferably, the method comprises the following steps: the butter packing is attached to the outer wall of the cement pipe joint.

The utility model has the advantages that:

1) The ultra-deep soil covering ultra-large caliber ultra-long curve pipe-jacking hole-outlet water stop device adopts a structure that one sealing check ring and a butter packing are sealed, adopts two water stop devices of a rubber water stop plate and the butter packing, and provides multiple water stop protection for pipe-jacking hole entry and exit; the embedded grouting pipe is used for injecting bentonite slurry into the hole, so that the hole soil loss and ground subsidence caused by the advance of the pipe jacking machine and pipe joints back soil are effectively prevented; the safety of the pipe jacking construction process is ensured, the possibility of water leakage and sand leakage of the tunnel portal and the occurrence of dangerous situations are reduced, and surrounding buildings and the environment are effectively protected.

2) The utility model discloses at the pre-buried pull ring in entrance to a cave, through two cable wire fastening connection concrete pipe joints, prevent that the pipeline from retreating, two cable wires are used for the gesture of effective control pipe pushing jack to push up into trend, push up into axis and intraductal end elevation, keep the stability of pipe pushing jack gesture, and the push pipe goes out hole watertight fittings and can prevent effectively that the push pipe from passing in and out the in-process and appearing gushing water and gushing sand phenomenon, guarantees that the soil body is stable.

Drawings

FIG. 1 is a constructional diagram of a super-deep soil covering super-large caliber super-long curve pipe jacking hole outlet water stopping device;

fig. 2 is an elevation view of the water stop device;

fig. 3 is a plan view of the water stopping device.

Description of reference numerals: the concrete grouting pipe comprises a rubber water stop plate 1, a cement pipe joint 2, an inner lining wall 3, an embedded ring plate 4, a circular ring plate 5, a gasket 6, a nut 7, a stud 8, a shaft pin 9, a retainer ring 10, a turning plate 11, a butter packing 12, an embedded pull ring 13, a steel cable 14, a cylindrical pin 15 and an embedded grouting pipe 16.

Detailed Description

The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to assist in understanding the invention. It should be noted that, for those skilled in the art, the present invention can be modified in several ways without departing from the principle of the present invention, and these modifications and modifications also fall into the protection scope of the claims of the present invention.

As an example, as shown in fig. 1 to 3: the ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole water stopping device comprises a rubber water stopping plate 1, a gasket 6, a check ring 10, a butter packing 12, a pre-embedded pull ring 13, a steel cable 14 and a pre-embedded grouting pipe 16; the circular ring plate 5 is connected with the embedded ring plate 4 through a stud 8; a rubber water stop plate 1 is arranged between the embedded ring plate 4 and the ring plate 5, and the rubber water stop plate 1 is fixedly connected with the embedded ring plate 4; the end part of the rubber water stop plate 1, which is not connected with the embedded ring plate 4, extends into the cement pipe joint 2; the embedded ring plate 4 is arranged on the surface of the inner lining wall 3; the embedded ring plate 4 is also screwed with a nut 7, and a gasket 6 is arranged between the nut 7 and the embedded ring plate 4.

The circular plate 5 is hinged with the turning plate 11 through a shaft pin 9, the check ring 10 is connected with the turning plate 11, and the butter packing 12 is connected with the check ring 10; when the turning plate 11 is turned to a position perpendicular to the hole, the butter packing 12 is attached to the outer wall of the cement pipe joint 2, the check ring 10, the turning plate 11, the butter packing 12 and the rubber water stop plate 1 jointly form a sealing structure, and the sealing structure plugs the hole.

The two embedded pull rings 13 form a group, the two embedded grouting pipes 16 form a group, and a group of embedded pull rings 13 and a group of embedded grouting pipes 16 are arranged on two sides of the hole; each group of embedded pull rings 13 is tensioned by a steel cable 14; installing cylindrical pins 15 with the specification of phi 100mm at the positions of hoisting holes on two sides of the cement pipe joint 2 respectively; one end of a steel cable 14 on each side of the hole is connected with one embedded pull ring 13, the middle part of the steel cable 14 bypasses the cylindrical pin 15 on the side, and the other end of the steel cable is connected and tensioned with the other embedded pull ring 13 in the same group.

Claims

1. The utility model provides an ultradeep earthing super large caliber overlength curve push pipe goes out hole sealing device which characterized in that includes: the device comprises a rubber water stop plate (1), a gasket (6), a check ring (10), a butter packing (12), an embedded pull ring (13), a steel cable (14) and an embedded grouting pipe (16);

the circular ring plate (5) is connected with the embedded ring plate (4) through a stud (8); a rubber water stop plate (1) is arranged between the embedded ring plate (4) and the circular ring plate (5), and the rubber water stop plate (1) is fixedly connected with the embedded ring plate (4); a nut (7) is further screwed on the embedded ring plate (4), and a gasket (6) is arranged between the nut (7) and the embedded ring plate (4); the circular plate (5) is hinged with the turning plate (11) through a shaft pin (9), the check ring (10) is connected with the turning plate (11), and the butter packing (12) is connected with the check ring (10); when the turning plate (11) is turned to a position vertical to the hole, the retainer ring (10), the turning plate (11), the butter packing (12) and the rubber water stop plate (1) form a sealing structure together, and the sealing structure plugs the hole;

the two embedded pull rings (13) form a group, the two embedded grouting pipes (16) form a group, and the two sides of the hole opening are provided with the embedded pull rings (13) and the embedded grouting pipes (16); each group of embedded pull rings (13) is tensioned by a steel cable (14); a cylindrical pin (15) is respectively arranged at the positions of hoisting holes at the two sides of the cement pipe joint (2); one end of a steel cable (14) on each side of the hole is connected with one embedded pull ring (13), the middle part of the steel cable (14) bypasses the cylindrical pin (15) on the side, and the other end of the steel cable is connected and tensioned with the other embedded pull ring (13) in the same group.

2. The ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole water stopping device as claimed in claim 1, which is characterized in that: the embedded ring plate (4) is arranged on the surface of the inner lining wall (3).

3. The ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole water stopping device as claimed in claim 1, which is characterized in that: the end part of the rubber water stop plate (1) which is not connected with the embedded annular plate (4) extends into the cement pipe joint (2).

4. The ultra-deep soil covering ultra-large caliber ultra-long curve pipe jacking hole water stopping device as claimed in claim 1, which is characterized in that: the butter packing (12) is attached to the outer wall of the cement pipe joint (2).