CN212202062U - Pipe jacking construction equipment - Google Patents

Abstract

The utility model relates to a pipe jacking construction equipment, comprising a pre-embedded steel plate arranged in a working well, an installation position for fixing a jack cylinder body is arranged on the pre-embedded steel plate, and at least two push-unit pipe sections are arranged on the pre-embedded steel plate. Push plate, the plate surface of the push plate is arranged vertically and symmetrically on the embedded steel plate, the oil cylinder of the jack starts and moves the push plate horizontally, the push plate abuts one end of the unit pipe section and moves towards the hole of the working well, In the actual construction process of the pipe jacking construction equipment, a working well is dug at the middle of the path to be constructed, the pre-embedded steel plate of the pipe jacking construction equipment is hoisted to the low end of the working well, and then installed and fixed, and the jack The cylinder body is fixed at the installation position of the embedded steel plate, and the push plate used to push the unit pipe section is symmetrically arranged on the embedded steel plate. The start-up jack can realize the pipe jacking operation of the two-way well hole of the working well, and the turnover of the machine head can be greatly utilized. rate, which can significantly improve the construction efficiency of pipe jacking.

Description

Pipe jacking construction equipment

technical field

The utility model relates to the technical field of engineering, in particular to a pipe jacking construction equipment.

Background technique

The pipe jacking machine is often seen in the conventional mud-water balance (earth pressure balance) construction. In the above mud-water balance construction process, the pipe jacking machine can only push the unit pipe section in one direction at a time. The jack cylinder that pushes the unit tube section toward the hole needs to be supported by a backrest, and the backrest is arranged in the opposite direction of the jacking. The above-mentioned backrests are mostly concrete formed backrests. The bottom of the working well is made of concrete as the backrest. It takes 2 to 3 days to ensure that the backrest is completely solidified, and then the jack is installed. Therefore, when the pipe jacking operation of the unit pipe section is carried out, it will cause low efficiency. During the pipe jacking operation of the pipe section, it is necessary to re-install the track and re-adjust the machine head, which takes a long time and reduces the turnover rate of the machine head.

Utility model content

The purpose of the utility model is to provide a pipe jacking construction equipment, which can significantly improve the efficiency of the pipe jacking construction, and can simultaneously realize the multi-directional pipe jacking operation of the working well.

Solving the technical problem in the utility model adopts the following technical scheme:

A pipe jacking construction equipment includes a pre-embedded steel plate arranged in a working well, the pre-embedded steel plate is provided with a mounting position for fixing a jack cylinder, and at least two push-unit pipe sections are provided on the pre-embedded steel plate. Push plate, the plate surface of the push plate is vertically arranged and symmetrically arranged on the embedded steel plate, the oil cylinder of the jack is activated and moves horizontally in conjunction with the push plate, the push plate abuts against one end of the unit tube section and faces toward The opening of the working well moves.

The utility model also has the following technical features:

The cylinder body of the jack is arranged vertically, the jack is connected with the push plate through a linkage mechanism, and the jack moves vertically and moves horizontally in conjunction with the push plate.

The pre-embedded steel plate is provided with struts at intervals in the circumferential direction, and the rod ends of the struts abut against the inner wall of the working well.

One end of the strut is hinged with the embedded steel plate, the hinge axis of the strut is arranged horizontally, and the strut is connected with a support mechanism for adjusting the angle between the strut and the embedded steel plate.

The support mechanism includes a support roller, the wheel core of the support roller is horizontal and perpendicular to the length direction of the strut, the rim of the support roller is in contact with the shaft of the strut, and the wheel frame of the support roller is fixed on the adjusting rod. On the plate, an adjustment screw is vertically arranged on the adjustment plate, the upper end of the adjustment screw extends out of the upper plate surface of the pre-embedded steel plate, and the upper end of the adjustment screw is provided with an adjustment nut.

The strut is a telescopic rod structure, the front end of the strut is hingedly provided with an arc top plate, the outer edge of the arc top plate abuts against the inner wall of the working well, and the hinge axis of the arc top plate is horizontal and is in line with the strut. The rods are arranged vertically.

The lower end of the push plate and the rail form a horizontal sliding fit, and the rail is arranged in two rows horizontally and at a parallel interval.

The front end of the track is provided with a material receiving carriage for receiving the unit tube section, and the material receiving carriage is composed of a plurality of material receiving sliding bars at horizontal intervals, and the plurality of material receiving sliding bars are arranged in parallel with the track, and the The root splicing slide bar is enclosed into an arc-shaped plate structure, and the splicing carriage and the track form an adjustable fit in the length direction.

The two ends of the plurality of material receiving sliding rods are provided with installation support rods, the installation support rods extend vertically downward and form an integral body, and the outer edge of the push plate has an arc-shaped plate structure as a whole. The edge of the plate is provided with avoidance gaps, the avoidance gaps are arranged along the length direction of the push plate, and the avoidance gaps are used to form a gap with the material receiving slide bar.

The pre-embedded steel plate is vertically provided with a column, and the column is provided with a fixed flange for fixing the jack. The piston rod of the jack is vertically downward and is hinged with one end of the push rod. The other end is hinged with the push plate, the hinge shafts at both ends of the push rod are horizontal and perpendicular to the moving direction of the push plate, the bottom of the working well is prefabricated with a bottom plate, and the bottom plate is vertically provided with reserved bolts. The upper end of the left bolt protrudes from the upper plate surface of the fixed flange and is provided with a nut.

Compared with the prior art, the beneficial effect of the present utility model is reflected in: in the actual construction process of the pipe jacking construction equipment, a working well is dug at the middle of the path to be constructed, and the pre-embedded steel plate of the pipe jacking construction equipment is hoisted. It is sent to the low-end position of the working well, and then installed and fixed, and the jack cylinder is fixed at the installation position of the embedded steel plate, and the push plate used to push the unit pipe section is symmetrically arranged on the embedded steel plate. The pipe jacking operation is carried out in the two-way wellbore of the well, which can significantly improve the turnover rate of the machine head, thereby significantly improving the construction efficiency of the pipe jacking.

Description of drawings

Fig. 1 and Fig. 2 are two kinds of perspective structure schematic diagrams that the pipe jacking construction equipment is located in the working well;

Fig. 3 is the structural schematic diagram after the pipe jacking construction equipment is located in the working well and removed from the bottom plate;

Fig. 4 is the front view of pipe jacking construction equipment and working well;

Fig. 5 is the structural representation of pipe jacking construction equipment;

Fig. 6 is the front view of pipe jacking construction equipment;

Fig. 7 and Fig. 8 are two kinds of perspective structure schematic diagrams of the partial structure in the pipe jacking construction equipment;

FIG. 9 is a schematic diagram of the structure of the push plate.

Detailed ways

1 to 9, the structural features of the pipe jacking construction equipment are described in detail as follows:

A pipe jacking construction equipment includes a pre-embedded steel plate 20 arranged on a working well 10, the pre-embedded steel plate 20 is provided with an installation position for fixing the cylinder body of the jack 30, and at least two Pushing the push plate 40 of the unit tube section, the plate surface of the push plate 40 is vertically arranged and symmetrically arranged on the embedded steel plate 20, the oil cylinder of the jack 30 is activated and moves the push plate 40 horizontally, the push plate 40 abuts one end of the unit pipe section and moves toward the opening of the working well 10;

1 to 5, before the pipe jacking equipment is hoisted into the working well 10, the working well 10 needs to be excavated first, and the working well 10 is dug at the middle position of the pipe jacking construction path. Installation bolts are reserved in advance in the 10 for installing the embedded steel plate 20. The embedded steel plate 20 is hoisted in the working rib 10 by a truss crane, and fixed by the embedded bolts. Then, the cylinder body of the jack 30 is installed in the On the installation position of the buried steel plate 20, the jack 30 is activated, and the push plate 40 is driven to advance toward the respective holes, so as to realize the simultaneous pipe jacking operation of the working well 10 in both directions. At the same time, the other side of the working well can still travel normally, so as to reduce the serious problem of shutdown of the whole project due to the failure of the machine head during one-way jacking.

As a preferred solution of the present invention, in order to reduce the horizontal space of the working well 10 occupied by the jack 30, so that the working well 10 has sufficient lateral space for arranging other equipment, the cylinder body of the jack 30 is arranged vertically, and the jack 30 is arranged vertically. 30 is connected with the push plate 40 through a linkage mechanism, the jack 30 moves vertically and moves horizontally with the push plate 40;

The above-mentioned jack 30 moves vertically, and the vertical movement is converted into the horizontal movement of the push plate 40, thereby realizing the jacking operation of one end of the unit pipe section, gradually jacking the jacking pipe, and completing the construction operation, the above-mentioned jack 30 is vertical. The horizontal arrangement of the jack 30 in the working well 10 is small, so that enough space is reserved for other equipment to be installed.

In order to realize the stable and reliable installation of the embedded steel plate 20, struts 50 are arranged at intervals in the circumferential direction of the embedded steel plate 20, and the rod ends of the struts 50 abut against the inner wall of the working well 10;

First, the embedded steel plate 20 is hoisted in the working well 10 by using the truss hoisting equipment, and installed smoothly. The rod end of the strut 50 is used to abut and install the inner wall of the working well 10, so that the embedded steel plate 20 can be effectively realized. Carry out effective fixed installation to avoid the lifting of the embedded steel plate 20 under the reverse action of the jack 30 during operation;

In order to effectively abut the strut 50 with the inner wall of the working well 10 and ensure the stable installation of the entire equipment, one end of the strut 50 is hinged with the embedded steel plate 20, and the hinge shaft of the strut 50 is arranged horizontally. The strut 50 is connected with a support mechanism, and the support mechanism is used to adjust the angle between the strut 50 and the embedded steel plate 20;

When the truss hoisting equipment lifts the embedded steel plate 20, the support rod 50 extends downward obliquely, and the embedded steel plate 20 is sunk into the bottom of the working well 10 in a horizontal state, and the rod end of the rear support rod 50 is in contact with the inner wall of the working well 10. Rely, adjust the support mechanism to reduce the included angle between the strut 50 and the embedded steel plate 20, so that the included angle becomes smaller, so that the rod end of the strut 50 can be stably abutted against the inner wall of the working well 10 to ensure that the entire The jack-up installation operation of the device.

In order to realize the adjustment of the angle between the strut 50 and the embedded steel plate 20 , the support mechanism includes a support roller 51 . The wheel core of the support roller 51 is horizontal and perpendicular to the length direction of the strut 50 . The rim of the wheel is in contact with the shaft of the support rod 50, the wheel frame of the support roller 51 is fixed on the adjustment plate 52, and the adjustment screw 53 is vertically arranged on the adjustment plate 52. The upper end protrudes from the upper plate surface of the embedded steel plate 20, and the upper end of the adjusting screw rod 53 is provided with an adjusting nut 54;

During the actual adjustment operation, after the pre-embedded steel plate 20 is hung at the bottom of the working well 10, the adjustment nut 54 is twisted with a large wrench tool, so that the adjustment plate 52 is lifted upward, so that the support roller 51 faces the rod of the support rod 51 The ends move, so that the angle between the strut 51 and the embedded steel plate 20 is reduced, so that the embedded steel plate 20 can be effectively fixed in the working well 10 to effectively fix the equipment.

More specifically, the support rod 50 is a telescopic rod structure, the front end of the support rod 50 is hingedly provided with an arc-shaped top plate 55, and the outer edge of the arc-shaped top plate 55 abuts against the inner wall of the working well 10. The hinge axis of the arc-shaped top plate 55 is horizontal and vertically arranged with the strut 50;

The above-mentioned support rod 50 is a sleeve-shaped structure, so as to facilitate the adjustment of the length of the support rod 50. After adjusting the appropriate length, the entire embedded steel plate 20 and the support rod 50 are hoisted in the working well 10, so as to realize the adjustment of the pre-embedded steel plate 20 and the support rod 50. Fix the buried steel plate 20, and then rotate the adjusting nut 54 to make the edge of the arc top plate 55 abut against the inner wall of the working well 10 to achieve stable fixation of the entire equipment, and adjust the position of the push plate 40 so that the push plate 40 The direction of movement is exactly at the orifice position of the wellbore.

In order to realize the horizontal and progressive push of the unit tube section, the lower end of the push plate 40 and the rail 60 form a horizontal sliding fit, and the rail 60 is arranged in two rows horizontally and parallel to each other.

More preferably, the front end of the rail 60 is provided with a material receiving carriage 61 for receiving the unit tube section. The rods 611 are arranged in parallel with the rails 60, the plurality of splicing sliding rods 611 are enclosed in an arc-shaped plate structure, and the splicing carriages 61 and the rails 60 form an adjustable fit in the length direction;

The above-mentioned feeding carriage 61 can effectively realize the pocketing of a single unit tube section, so that the unit tube section is in a state where the tube core is horizontal and abuts the shaft of the feeding sliding rod 611, and the above-mentioned jack 30 is activated to make the push plate. 40 moves horizontally and is parallel to the moving direction of the material receiving slide bar 611, so that the unit pipe section can be effectively pushed horizontally into the wellbore, so as to realize the gradual pushing operation of the unit pipe section.

More specifically, in order to effectively push the unit pipe section into the wellbore and separate the unit pipe section from the carriage 61, the two ends of the plurality of material receiving sliding rods 611 are provided with installation support rods 612. The support rod 612 extends vertically downward and is integrally formed. The outer edge of the push plate 40 has a circular arc-shaped plate structure as a whole. The push plate 40 is arranged through the length direction, and the avoidance gap 41 is used to form a gap with the material receiving slide bar 611;

After the jack 30 is activated, the push plate 40 moves horizontally, and the push plate 40 moves horizontally so that the avoidance gap 41 and the material receiving slide bar 611 form an avoidance when moving in the horizontal direction, so that the unit tube on the material receiving slide bar 611 can be effectively removed. The section is gradually pushed in from one end of the well hole to complete the pipe jacking operation. By adjusting the position of the material catching carriage 61 and the track 60, the position of the material catching carriage 61 and the well hole is adjusted to ensure that the unit pipe section is pushed into the well. After the hole is drilled, it can be effectively separated from the material receiving carriage 61 .

Finally, in order to realize the horizontal driving of the push plate 40 , the pre-embedded steel plate 20 is vertically provided with a column 71 , and the upper end of the column 71 is provided with a fixing flange 72 for fixing the jack 30 . The piston rod is vertically downward and is hinged with one end of the push rod 73, the other end of the push rod 73 is hinged with the push plate 40, and the hinge axes at both ends of the push rod 73 are horizontal and perpendicular to the moving direction of the push plate 40, so A bottom plate 80 is prefabricated at the bottom of the working well 10, and reserved bolts 81 are vertically arranged on the bottom plate 80. The upper ends of the reserved bolts 81 protrude from the upper plate surface of the fixing flange 72 and are provided with nuts;

The above-mentioned piston of the jack 30 is arranged vertically, and the cylinder body of the jack 30 can be effectively fixed by the fixing flange 72. When the jack 30 moves vertically and drives the push rod 73, the push plate 40 slides along the track 60. , so as to realize the horizontal jacking operation of one end of the unit pipe section and complete the pipe jacking construction;

In actual operation, the size of the jack 30 is appropriately selected according to the diameter of the working well 10 and the number of pipe sections to be pushed, the diameter of the pipe section and the push length. For the current construction, the length of the jack 30 is mostly 1.5m, the diameter of the fixing flange 72 is mostly 2m, the diameter of the bottom plate 80 is 2-3m, and the reserved bolts 81 are arranged in 16 to 24 groups at equal angular intervals along the circumferential direction of the bottom plate 80, and are fixed at the same angle. The flange 72 is provided with the same number of perforations;

When carrying out the installation of the jack 30 , the jack 30 is suspended into the working well 10 by means of a hoisting device, and then all the perforations on the fixing flange 72 pass through the reserved bolts 81 , so that the fixing flange 72 is attached to the bottom plate 80 . Then, nuts are respectively arranged on the reserved bolts 81, so that the effective fixing of the jack 30 can be effectively achieved, and the reliability of the fixing with the bottom of the working well 10 can be ensured.

The above-mentioned force analysis of the push rod 73 of the jack 30 shows that the cylinder of the jack 30 bears a vertical upward reverse component force. Therefore, the prefabricated bottom plate 80 and the reserved bolts 81 are tightened through a plurality of installation positions. to ensure stable installation of the equipment.

The pipe jacking construction process is described below. The pipe jacking construction process uses the above-mentioned equipment, and the pipe jacking construction process includes the following steps:

The first step is to determine the jacking route, and dig a working well 10 in the middle of the jacking route;

The second step is to pour concrete-based embedded bolts at the bottom of the working well 10, and also set the embedded bolts on the inner wall of the working well;

In the third step, a foundation pit is dug at the bottom of the working well 10, concrete is poured in the foundation pit, and then after the concrete is solidified, the bottom plate 80 is placed in the foundation pit, so that the bottom plate 80 is placed flat, concrete is poured again in the foundation pit, and the concrete Cover the bottom plate 80, arrange reserved bolts 81 at intervals in the circumferential direction of the bottom plate 80, and also set pre-embedded bolts on the inner wall of the working well;

The fourth step is to adjust the support mechanism so that the angle between the strut 50 and the embedded steel plate 20 becomes smaller, and the rod end of the strut 50 abuts against the hole wall of the working rib 10, and is connected to the working well 10 through the nut. Tighten the embedded bolts on the inner wall;

The fifth step is to debug the hydraulic station, and hoist the single unit pipe section to the material receiving carriage 61, so that the nozzle of the unit pipe section corresponds to the orifice of the well hole;

The sixth step, start the jack 30, so that the piston rod of the jack 30 is elongated, and the push plate 40 is moved horizontally, and the unit pipe section is pushed into the well hole, and the jacking of the single unit pipe section is completed;

Step 7: Repeat steps 5 and 6 until the unit pipe sections are arranged in the wellbore.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. The utility model provides a push pipe construction equipment which characterized in that: including setting up pre-buried steel sheet (20) at work well (10), be provided with the installation position that is used for fixed jack (30) cylinder body on pre-buried steel sheet (20), be provided with push pedal (40) of two at least promotion unit tube couplings on pre-buried steel sheet (20), the face of push pedal (40) is vertical to be arranged and the symmetry sets up on pre-buried steel sheet (20), the hydro-cylinder of jack (30) starts and interlock push pedal (40) horizontal migration, push pedal (40) support with the one end of unit tube coupling and lean on and move towards the entrance to a cave of work well (10).

2. The pipe jacking construction equipment according to claim 1, wherein: the cylinder body of the jack (30) is vertically arranged, the jack (30) is connected with the push plate (40) through the linkage mechanism, and the jack (30) vertically moves and is linked with the push plate (40) to horizontally move.

3. The pipe jacking construction equipment according to claim 1 or 2, wherein: and support rods (50) are arranged at intervals in the circumferential direction of the embedded steel plate (20), and rod ends of the support rods (50) are abutted against the inner wall of the working well (10).

4. The pipe jacking construction equipment according to claim 3, wherein: the one end of vaulting pole (50) is articulated with pre-buried steel sheet (20), the articulated shaft level of vaulting pole (50) is arranged, vaulting pole (50) are connected with supporting mechanism, supporting mechanism is used for adjusting the contained angle between vaulting pole (50) and pre-buried steel sheet (20).

5. The pipe jacking construction equipment according to claim 4, wherein: the supporting mechanism comprises a supporting roller (51), the wheel core level of the supporting roller (51) is perpendicular to the length direction of a support rod (50), the wheel rim of the supporting roller (51) is abutted to the rod body of the support rod (50), the wheel carrier of the supporting roller (51) is fixed on an adjusting plate (52), an adjusting screw rod (53) is vertically arranged on the adjusting plate (52), the upper end of the adjusting screw rod (53) extends out of the upper plate surface of a pre-embedded steel plate (20), and an adjusting nut (54) is arranged at the upper end of the adjusting screw rod (53).

6. The pipe jacking construction equipment according to claim 5, wherein: vaulting pole (50) are telescopic rod structure, the front end of vaulting pole (50) is articulated to be provided with arc roof (55), the outer fringe of arc roof (55) supports with the inner wall of working well (10) and leans on, the articulated shaft level of arc roof (55) just arranges with vaulting pole (50) are perpendicular.

7. The pipe jacking construction equipment according to claim 2, wherein: the lower end of the push plate (40) and the rail (60) form sliding fit in the horizontal direction, and the rail (60) is horizontally arranged in two rows at intervals in parallel.

8. The pipe jacking construction equipment according to claim 7, wherein: the front end of track (60) is provided with connects material balladeur train (61) of accepting the unit tube section, connect material balladeur train (61) to constitute by many material receiving slide bars (611) horizontal interval, many material receiving slide bars (611) and track (60) parallel arrangement, many material receiving slide bars (611) enclose into the arc structure, connect material balladeur train (61) and track (60) to constitute the adjustable cooperation in length direction's position.

9. The pipe jacking construction equipment according to claim 8, wherein: many connect the both ends of material slide bar (611) to be provided with installation branch (612), the vertical downwardly extending of installation branch (612) just constitutes integratively, the whole arc platelike structure that is of outer fringe of push pedal (40), the edge of push pedal (40) is provided with dodges breach (41), dodge breach (41) and run through along the length direction of push pedal (40) and arrange, dodge breach (41) be used for with connect material slide bar (611) to form dodge.

10. The pipe jacking construction equipment according to claim 9, wherein: vertical stand (71) that is provided with on pre-buried steel sheet (20), be provided with fixed flange dish (72) that are used for fixed jack (30) on stand (71), the piston rod of jack (30) is vertical downwards and articulated with the one end of push rod (73), the other end and the push pedal (40) of push rod (73) are articulated, the articulated shaft level at push rod (73) both ends just is perpendicular with the moving direction of push pedal (40), the bottom prefabrication of working well (10) has bottom plate (80), vertically on bottom plate (80) be provided with reserve bolt (81), the last face that stretches out fixed flange dish (72) on reserve bolt (81) upper end just is provided with the nut.

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