CN110195595B - Retaining device for pipe piece of pipe jacking machine and using method of retaining device - Google Patents
Retaining device for pipe piece of pipe jacking machine and using method of retaining device Download PDFInfo
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- CN110195595B CN110195595B CN201910383210.6A CN201910383210A CN110195595B CN 110195595 B CN110195595 B CN 110195595B CN 201910383210 A CN201910383210 A CN 201910383210A CN 110195595 B CN110195595 B CN 110195595B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
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Abstract
The invention relates to a retaining device for a pipe piece of a pipe jacking machine and a using method thereof, wherein the retaining device comprises: the reaction frame is fixed on the starting well base and arranged on two sides of the hole excavated by the push bench, and the reaction frame is provided with an installation surface opposite to the excavated section of the push bench; the connecting plates are detachably arranged on two sides of the duct piece at the opening and are positioned between the mounting surface and the excavated section of the pipe jacking machine; and the jack corresponds to the connecting plate and is vertically installed on the installation surface, the jack is electrically connected with a controller sensor, the sensor senses that the jacking section of the jack is displaced, and then the controller adjusts the thrust acted on the connecting plate by the jack until the jacking section of the jack is not displaced, so that the duct piece is prevented from retreating. The invention effectively solves the problem of difficult stopping of the jacking pipe in the deep-buried large-pipe jacking project, can accurately adjust the thrust of the stopping device, keeps the balance between the thrust and the soil surface pressure, avoids aggravation of ground settlement, and improves the construction quality and the construction efficiency.
Description
Technical Field
The invention relates to the field of building construction, in particular to a retaining device for a pipe piece of a pipe jacking machine and a using method thereof.
Background
The push bench is the common equipment of underground traffic system construction, and the construction of push bench is kept away from and is constructed the machine with the shield and be the same, but the power device of push bench is located the working shaft for the push bench needs to cut off power and pipeline at the in-process of section of jurisdiction installation, and the push bench aircraft nose that loses power and the section of jurisdiction of having installed can back up under the effect of excavation face soil pressure.
In burying big push pipe engineering deeply, push pipe machine head receives thrust far away is greater than push pipe machine received thrust in the ordinary engineering, prior art uses shear pin or bracing piece to withstand push pipe machine's section of jurisdiction in order to reach the purpose of stopping mostly, but the effect of this kind of mode stopping is limited, can't satisfy the stability requirement of intensity and rigidity, can not effectively reach the effect of stopping under the great condition of thrust, if soil face pressure is unstable when taking place to subside in addition, the thrust that is difficult to adjust the stopping device makes it balanced with soil face pressure, the problem that ground subsides is probably aggravated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the retaining device for the pipe piece of the pipe jacking machine and the using method thereof, solves the problem of difficult pipe jacking retaining in a deep-buried large pipe jacking project, effectively prevents the pipe piece from retreating, can accurately adjust the thrust of the retaining device, keeps the balance between the thrust and the soil surface pressure, avoids ground settlement aggravation, and improves the construction quality and the construction efficiency.
The technical scheme for realizing the purpose is as follows:
the invention provides a retaining device for a pipe piece of a pipe jacking machine, which comprises:
the reaction frame is fixed on the starting well base and arranged on two sides of the hole excavated by the push bench, and the reaction frame is provided with an installation surface opposite to the excavated section of the push bench;
the connecting plates are detachably arranged on two sides of the duct piece at the opening and are positioned between the mounting surface and the excavated section of the pipe jacking machine; and
the controller is electrically connected with the sensor and senses displacement change of a jacking joint of the jack through the sensor, and then the controller adjusts the pushing force of the jack acting on the connecting plate until the jacking joint of the jack does not change in displacement, so that the segment is prevented from retreating.
The invention provides a backstop device for a pipe piece of a pipe jacking machine, which is characterized in that connecting plates are vertically arranged on two sides of the pipe piece, reaction frames are arranged on two sides of an excavated opening of the pipe jacking machine, which are opposite to the connecting plates, a jack capable of propping against the connecting plates is arranged on the reaction frames, when a sensor on the jack senses displacement change of a jacking section of the jack due to relative expansion, a controller electrically connected with the sensor increases or decreases the thrust acted on the connecting plates by the jack until the displacement of the jacking section of the jack is not changed, so that the pipe piece is prevented from retreating, the problem of difficult backstop of the pipe jacking in a large-buried pipe jacking project is solved, the phenomenon of retreating of the pipe piece is effectively prevented, the thrust of the backstop device can be accurately adjusted, the balance between the thrust and the soil surface pressure is kept, ground settlement aggravation is avoided, and the.
The invention further improves the retaining device of the pipe piece of the pipe jacking machine, and the retaining device also comprises mechanical retaining locks which are arranged on the installation surface and positioned at two sides of the jack, the mechanical retaining locks correspond to the connecting plate, the length of the mechanical retaining locks can be adjusted, the mechanical retaining locks can prop the connecting plate and prevent the pipe piece from backing up by adjusting the length of the mechanical retaining locks and propping against the connecting plate when the jack releases pressure.
The mechanical backstop lock comprises a sleeve with internal threads and a jacking pipe screwed with the sleeve, and the length of the jacking pipe extending out of the sleeve is changed by screwing the jacking pipe, so that the length of the mechanical backstop lock is changed.
The anti-return device of the pipe piece of the pipe jacking machine is further improved by comprising a support fixedly connected with the mounting surface, the support is internally hollow to form an accommodating space for mounting the jack and the mechanical anti-return lock, and the side wall of the support corresponding to the connecting plate is provided with a hole for the jack and the mechanical anti-return lock to extend out.
The invention further improves the retaining device of the pipe piece of the pipe jacking machine, wherein the end part of the jack close to the inner connecting piece is vertically connected with a front end plate, one side of the front end plate far away from the jack is propped against the corresponding side part of the connecting plate, and a gasket is fixedly arranged at the position of the front end plate corresponding to the mechanical retaining lock.
The invention further improves the retaining device of the pipe piece of the pipe jacking machine, wherein a plurality of through holes are correspondingly formed in the side wall of the pipe piece, connecting holes are formed in the connecting plates corresponding to the through holes, the shearing pins penetrate through the connecting holes and are inserted into the corresponding through holes, so that the connecting plates are vertically fixed on the side part of the pipe piece, and a pair of pull rods is connected between the shearing pins corresponding to the two sides of the pipe piece in a pulling mode.
The invention further improves the retaining device of the pipe piece of the pipe jacking machine, and the reaction frame comprises:
the support column is vertically arranged, one end of the support column is fixedly arranged on the originating well base, and the side surface of the support column, which is opposite to the excavated end surface of the push bench, is an installation surface; and
the inclined strut is arranged on one side of the supporting column far away from the jack, the inclined strut is obliquely supported between the base of the starting well and the supporting column, and the inclined strut is provided with a plurality of inclined struts in parallel.
The invention further improves the retaining device of the pipe piece of the pipe jacking machine, wherein the outer side of the pipe piece is also sleeved with a rack, the rack is in an inverted U shape, the rack is provided with a steel wire rope, and the steel wire rope is fixed in a constructed area around the pipe piece to reinforce the pipe piece and prevent the pipe piece from backing.
The invention provides a using method of a retaining device of a pipe piece of a pipe jacking machine, which comprises the following steps:
s11, providing a reaction frame, wherein the reaction frame is arranged on two sides of an excavated opening of the push bench and is fixedly arranged on a base of an originating well and opposite to an excavated section of the push bench;
s12, providing a jack, vertically installing a connecting plate between the reaction frame and the excavation section on the side part of the duct piece, installing the jack on the side part of the reaction frame opposite to the connecting plate, and correspondingly propping against the connecting plate by the jack;
s13, the sensor on the jack senses that the displacement of the jacking section of the jack changes, and then the controller adjusts the thrust of the jack acting on the connecting plate until the displacement of the jacking section of the jack does not change any more, so that the duct piece is prevented from retreating.
The installation method of the retaining device of the pipe piece of the pipe jacking machine is further improved in that mechanical retaining locks are fixedly installed on two sides of the jack, correspond to the connecting plate, and are adjustable in length;
through the length of manual regulation machinery check lock for this machinery check lock keeps away from the tip of reaction frame and supports the connecting plate, and when the jack pressure release, this machinery check lock can support the connecting plate, thereby prevents that the section of jurisdiction from retreating.
Drawings
FIG. 1 is a schematic view showing the usage state of the retaining device of the push bench segment.
FIG. 2 is a front view of the retaining device for a push bench segment according to the present invention.
FIG. 3 is an exploded view of the jack portion of the backstop device for the tube sheet of the push bench of the present invention.
FIG. 4 is a flow chart of the method for using the retaining device of the push bench segment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a retaining device for a pipe piece of a pipe jacking machine and a use method thereof, wherein connecting plates are vertically arranged on two sides of the pipe piece, reaction frames are arranged on two sides of an excavated opening of the pipe jacking machine opposite to the connecting plates, a jack which can prop against the connecting plate is arranged on the counterforce frame, when a sensor on the jack senses that the jacking section of the jack generates displacement change due to relative extension, the controller electrically connected with the sensor increases or decreases the thrust of the jack on the connecting plate until the displacement of the jacking section of the jack is not changed, thereby preventing the pipe piece from retreating, solving the problem of difficult stopping of the pipe in the deep-buried large pipe-jacking project, effectively preventing the pipe piece from retreating, and can accurate regulation retaining device's thrust, keep thrust and soil surface pressure balance, avoid ground subside aggravation, promote construction quality and efficiency of construction. The invention will be explained below with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic view of a usage state of the retaining device for the pipe piece of the pipe jacking machine of the present invention. The retaining device for the pipe piece of the pipe jacking machine of the invention is explained below with reference to fig. 1.
As shown in fig. 1, the retaining device for a tube sheet of a push bench of the present invention comprises:
the reaction frame 11 is fixed on the base of the originating well and arranged on two sides of the hole excavated by the push bench, and the reaction frame 11 is provided with an installation surface opposite to the excavated section of the push bench 21;
the connecting plates 12 are detachably arranged on two sides of the duct piece 21 at the opening, and the connecting plates 12 are positioned between the mounting surface and the excavated section of the pipe jacking machine 21; and
the jack 13 correspondingly props against the connecting plate 12 and is vertically installed on the installation surface, the jack 13 is electrically connected with a controller, the controller is electrically connected with a sensor, the sensor senses that the jacking section of the jack 13 is displaced, and then the controller adjusts the thrust of the jack 13 acting on the connecting plate 12 until the jacking section of the jack 13 is not displaced, so that the duct piece 21 is prevented from retreating.
Preferably, the sensor is an ultrasonic displacement sensor, and when the sensor detects that the displacement of the jacking section of the jack 13 changes, namely the expansion amount of the jack 13 changes, the sensor triggers the controller to increase or decrease the thrust of the jack 13 acting on the connecting plate 12 according to the extension or contraction amount of the jack 13 until the jacking section of the jack 13 no longer expands or contracts relatively, namely the jacking section of the jack 13 no longer changes in displacement, so as to prevent the duct piece 21 from retreating.
Further, as shown in fig. 1, the reaction frame 11 includes:
a support column 111 which is vertically arranged and one end of which is fixedly installed on the starting well base, wherein the side surface of the support column 111 opposite to the excavated section of the push bench 21 is an installation surface; and
the inclined strut 112 is disposed on a side of the supporting column 111 far from the jack 13, the inclined strut 112 is obliquely supported between the base of the originating well and the supporting column 111, and a plurality of the inclined struts 112 are disposed in parallel.
Preferably, two diagonal braces 112 are disposed in parallel.
As a preferred embodiment of the present invention, referring to fig. 3, it further includes mechanical anti-back-off locks 132 installed on the installation surface and located on both sides of the jack 13, the mechanical anti-back-off locks 132 correspond to the connection plate 12, the length of the mechanical anti-back-off locks 132 is adjustable, and by adjusting the length of the mechanical anti-back-off locks 132 and abutting against the connection plate 12, when the jack 13 is depressurized, the mechanical anti-back-off locks 132 can abut against the connection plate 12 and prevent the duct piece 21 from backing off.
Further, the mechanical check lock 132 includes a sleeve 1321 provided with an internal thread and a lift pipe 1322 screwed to the sleeve 1321, and the length of the mechanical check lock 132 is changed by screwing the lift pipe 1322 to change the length of the lift pipe 1322 protruding from the sleeve 1321.
As shown in fig. 3, the vehicle-mounted safety device further includes a support 1111 fixedly connected to the mounting surface, the support 1111 is hollow to form an accommodating space for mounting the jack 13 and the mechanical anti-release lock 132, and the support 1111 is provided with a hole corresponding to the side wall of the connecting plate 12 for extending the jack 13 and the mechanical anti-release lock 132.
Furthermore, a front end plate 131 is vertically connected to the end of the jack 13 close to the connecting plate 12, the side of the front end plate 131 far from the jack 13 abuts against the corresponding side of the connecting plate, and a gasket 1311 is fixedly installed on the front end plate 131 corresponding to the mechanical anti-release lock 132, so that the pushing force of the mechanical anti-release lock 132 can be uniformly applied to the front end plate 131.
Preferably, a nut is fixedly mounted on the end of the mechanical anti-back lock 132 near the front plate 131 to enlarge the contact surface between the mechanical anti-back lock 132 and the washer 1311.
As another preferred embodiment of the present invention, as shown in fig. 1 and fig. 2, a plurality of through holes are correspondingly formed on the side wall of the tube sheet 21, connecting holes are formed in the connecting plate 12 corresponding to the through holes, the shear pins 122 pass through the connecting holes and are inserted into the corresponding through holes, so that the connecting plate 12 is vertically fixed on the side portion of the tube sheet 21, and the pair of tie rods 121 are connected between the corresponding shear pins 122 on both sides of the tube sheet 21 by means of tie.
Preferably, two horizontal through holes are formed in both side walls of the duct piece 21, a connecting hole is formed in the connecting plate 12 corresponding to the two through holes, the connecting plate is fixed to the side wall of the duct piece 21 through two shear pins 122, that is, the side portion of the connecting plate 12 is opposite to the jack 13, and the connecting plate 12 and the duct piece 21 can be connected more firmly through the two shear pins 122.
Preferably, three webs 12 are provided parallel to each other on the side of the tube sheet 21.
As shown in fig. 1, a frame 14 is further sleeved outside the duct piece 21, the frame 14 is in an inverted U shape, and a steel wire rope 141 is arranged on the frame 14 to fix a constructed area around the duct piece 21 by the steel wire rope 141 so as to reinforce the duct piece 21 and prevent the duct piece 21 from retreating.
Referring to fig. 1, 2 and 3, the method of the present invention is as follows:
the connecting holes of the connecting plate 12 correspond to the through holes on the duct piece 21, the connecting plate 12 is fixed on the side wall of the duct piece 21 by the corresponding penetration of the shear pins 122 through the connecting holes and the through holes, and the pair of pull rods 121 are connected between the shear pins 122 correspondingly arranged on the inner walls of the two sides of the duct piece 21 in a pulling manner so as to reinforce the connecting plate 12 and the shear pins 122;
installing a support column 111 so that the connecting plate 12 is positioned between the excavated section of the push bench 21 and the support column 111, the support column 111 is opposite to the connecting plate 12, an inclined support 112 is supported on one side of the support column 111 far away from the connecting plate 12, and a support 1111 is installed on the support column 111;
adjusting the length of the jack 13 so that the corresponding end of the jack 13 can abut against the connecting plate 12, screwing the jacking tube 1322 to change the length of the mechanical anti-backlash lock 132 until the end of the jacking tube 1322 away from the sleeve 1321 abuts against the corresponding washer 1311 on the front end plate 131;
connecting the steel wire rope 141 on the rack 14 with the constructed part around the segment 21, wherein when the segment 21 retreats, the fixed steel wire rope 141 can pull the rack 14, so that the segment 21 is prevented from retreating;
when the sensor detects that the displacement of the jacking section of the jack 13 changes, namely the telescopic amount of the jack 13 changes, the sensor triggers the controller to increase or decrease the thrust acted on the connecting plate 12 by the jack 13 according to the extension or shortening amount of the jack 13 until the jacking section of the jack 13 does not relatively stretch, namely the jacking section of the jack 13 does not change in displacement any more, so that the duct piece 21 is prevented from retreating, and the quality of the surrounding antifriction mud can be preliminarily judged according to the thrust of the jack;
when the jack 13 releases the pressure, the mechanical locking lock 13 props against the connecting plate 12 to prevent the duct piece 21 from retreating, so that the construction safety is ensured.
With reference to fig. 4, the present invention further provides a method for using a retaining device for a tube sheet of a push bench, which comprises the following steps:
step S11 is executed, a reaction frame 11 is provided, reaction frames 11 are arranged on two sides of the hole excavated by the push bench, and the reaction frames 11 are fixedly arranged on the base of the starting well and are opposite to the excavated section of the push bench 21; then, step S12 is executed
Step S12, providing a jack 13, vertically installing a connecting plate 12 on the side part of the duct piece 21 between the reaction frame 11 and the excavation section, installing the jack 13 on the side part of the reaction frame 11 opposite to the connecting plate 12, and correspondingly abutting the jack 13 against the connecting plate 12; then, step S13 is executed
And S13, sensing the only change of the jacking section of the jack 13 by a sensor on the jack 13, and adjusting the thrust of the jack 13 acting on the connecting plate 12 by the controller until the displacement of the jacking section of the jack 13 does not change any more so as to prevent the duct piece 21 from retreating.
Furthermore, mechanical anti-back-off locks 132 are fixedly installed on two sides of the jack 13, the mechanical anti-back-off locks 132 correspond to the connecting plate 12, and the length of the mechanical anti-back-off locks 132 is adjustable;
the mechanical check lock 132 is adjusted manually to enable the end part of the mechanical check lock 132 far away from the reaction frame 11 to abut against the connecting plate 12, and when the jack 13 is relieved of pressure, the mechanical check lock 132 can abut against the connecting plate 12 to prevent the duct piece 21 from retreating.
With reference to fig. 1 and 3, the practical operation of the method of the present invention is as follows:
installing a reaction frame 11 on two sides of an excavated opening of a pipe jacking machine, fixedly connecting a support column 111 of the reaction frame 11 with a base of an initial well, and supporting a plurality of inclined struts 112 on the side parts, far away from an excavated section, of the support column 111;
vertically installing a connecting plate 12 at a position between the reaction frame 11 and the excavation section on the side of the pipe piece 21, so that the reaction frame 11 is opposite to the connecting plate 12;
mounting a jack 13 on the opposite side of the reaction frame 11 from the connecting plate 12 so that the jack 13 can abut against the connecting plate 12;
mechanical check locks 132 are arranged on two sides of the jack 13, the length of the mechanical check locks 132 is adjusted to enable the end part, far away from the reaction frame 11, of the mechanical check lock 132 to abut against the connecting plate 12, and when the jack 13 is decompressed, the mechanical check lock 132 can abut against the connecting plate 12, so that the duct piece 21 is prevented from retreating, and the construction safety is guaranteed;
when the soil surface pressure changes, the pipe piece 21 receives the retreating force of the soil surface and changes, namely the retreating force of the pipe piece 21 is increased or reduced, if the retreating force of the pipe piece 21 is increased, the jacking section of the jack 13 contracts backwards, namely the expansion amount is reduced, the controller increases the thrust of the jack 13 until the jacking section of the jack 13 does not contract backwards any more, namely the expansion amount does not change any more, so that the balance between the thrust and the retreating force is kept;
if the retreating force of the duct piece 21 is reduced, the jacking section of the jack 13 extends forwards, namely the telescopic amount is increased, the controller reduces the thrust of the jack 13 until the jacking section of the jack 13 does not extend forwards any more, namely the telescopic amount is not changed any more, so that the balance between the thrust and the retreating force is kept.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a backstop device of pipe sheet of push bench which characterized in that includes:
the reaction frame is fixed on the starting well base and arranged on two sides of the hole excavated by the push bench, and the reaction frame is provided with an installation surface opposite to the excavated section of the push bench;
the connecting plates are detachably arranged on two sides of the duct piece at the opening and are positioned between the mounting surface and the excavated section of the pipe jacking machine;
the jack is correspondingly propped against the connecting plate and vertically arranged on the mounting surface, the jack is electrically connected with a controller, the controller is electrically connected with a sensor, the sensor senses that the jacking section of the jack is displaced, and then the controller adjusts the thrust of the jack acting on the connecting plate until the jacking section of the jack is not displaced any more, so that the duct piece is prevented from retreating; and
the mechanical locking device comprises a mechanical locking device, a connecting plate and a mechanical locking device, wherein the mechanical locking device is arranged on the mounting surface and positioned on two sides of the jack, the mechanical locking device corresponds to the connecting plate, the length of the mechanical locking device is adjustable, the mechanical locking device is used for adjusting the length of the mechanical locking device and supporting against the connecting plate, and when the jack releases pressure, the mechanical locking device can support against the connecting plate and prevent the duct piece from moving backwards.
2. The back stop device for pipe piece of pipe jacking machine of claim 1, wherein said mechanical back stop lock comprises a sleeve with internal threads and a jacking pipe screwed to said sleeve, and the length of said mechanical back stop lock is changed by screwing said jacking pipe to change the length of said jacking pipe extending from said sleeve.
3. The back stop device of the tube sheet of the tube push bench of claim 1, further comprising a support fixedly connected to the mounting surface, wherein the support is hollow to form an accommodating space for mounting the jack and the mechanical back stop lock, and a hole for extending the jack and the mechanical back stop lock is formed in the side wall of the support corresponding to the connecting plate.
4. The retaining device for the pipe piece of the pipe jacking machine as claimed in claim 1, wherein a front end plate is vertically connected to the end portion of the jack close to the connecting plate, one side of the front end plate far away from the jack abuts against the corresponding side portion of the connecting plate, and a gasket is fixedly mounted on the position of the front end plate corresponding to the mechanical retaining lock.
5. The withdrawal stopping device for a tube sheet of a tube push bench according to claim 1, wherein a plurality of through holes are correspondingly formed on the side wall of the tube sheet, connecting holes are correspondingly formed on the connecting plates, and shear pins penetrate through the connecting holes and are inserted into the corresponding through holes, so that the connecting plates are vertically fixed on the side portions of the tube sheet, and a pair of pull rods is connected between the corresponding shear pins on the two sides of the tube sheet in a pulling manner.
6. The back stop device of a push bench tube sheet as claimed in claim 1, wherein said reaction frame comprises:
the supporting column is vertically arranged, one end of the supporting column is fixedly installed on the originating shaft bottom seat, and the side face of the supporting column, which is opposite to the excavated section of the push bench, is the installation face; and
the inclined strut is arranged on one side, far away from the jack, of the supporting column, the inclined strut is obliquely supported between the base of the starting well and the supporting column, and the inclined strut is provided with a plurality of strips in parallel.
7. The back stop device for the pipe piece of the pipe jacking machine as claimed in claim 1, wherein a frame is further sleeved on the outer side of the pipe piece, the frame is in an inverted U shape, a steel wire rope is arranged on the frame, and the steel wire rope is fixed in a constructed area around the pipe piece to reinforce the pipe piece and prevent the pipe piece from backing.
8. The use method of the retaining device for the pipe piece of the pipe jacking machine as claimed in claim 1, is characterized by comprising the following steps:
s11, providing a reaction frame, arranging the reaction frame on two sides of an excavated opening of the pipe jacking machine, and fixedly installing the reaction frame on a base of the initial well and enabling the reaction frame to be opposite to an excavated section of the pipe jacking machine;
s12, providing a jack, vertically installing a connecting plate between a reaction frame and an excavation section on the side part of the duct piece, installing the jack on the side part of the reaction frame opposite to the connecting plate, and correspondingly propping against the connecting plate by the jack;
s13, the sensor on the jack senses that the displacement of the jacking section of the jack changes, and then the controller adjusts the thrust of the jack acting on the connecting plate until the displacement of the jacking section of the jack does not change any more, so that the duct piece is prevented from retreating;
s14, in the both sides fixed mounting of jack has mechanical backstop lock, mechanical backstop lock with the connecting plate is corresponding, just the length of mechanical backstop lock is adjustable, through manual regulation the length of mechanical backstop lock makes mechanical backstop lock keeps away from the tip of reaction frame supports the connecting plate, works as during the jack pressure release, mechanical backstop lock can support the connecting plate, thereby prevents the section of jurisdiction is retreated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910383210.6A CN110195595B (en) | 2019-05-09 | 2019-05-09 | Retaining device for pipe piece of pipe jacking machine and using method of retaining device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910383210.6A CN110195595B (en) | 2019-05-09 | 2019-05-09 | Retaining device for pipe piece of pipe jacking machine and using method of retaining device |
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| CN110195595A CN110195595A (en) | 2019-09-03 |
| CN110195595B true CN110195595B (en) | 2021-01-05 |
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| CN201910383210.6A Active CN110195595B (en) | 2019-05-09 | 2019-05-09 | Retaining device for pipe piece of pipe jacking machine and using method of retaining device |
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| CN111520149B (en) * | 2020-04-10 | 2022-07-29 | 四川万豪添翼建设工程有限公司 | Shield constructs quick-witted articulated auxiliary device |
| CN111472789B (en) * | 2020-04-29 | 2021-05-28 | 安徽开源路桥有限责任公司 | Pipe jacking construction process |
| CN112459798A (en) * | 2020-11-23 | 2021-03-09 | 上海隧道工程有限公司 | Self-locking type retaining device and method for pipe jacking construction |
| CN114542799B (en) * | 2022-02-08 | 2023-06-20 | 中交水利水电建设有限公司 | Underground limited space vertical jacking construction method |
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| CN204920963U (en) * | 2015-09-02 | 2015-12-30 | 中铁四局集团有限公司 | Rectangle push pipe stopping structure |
| CN106761774A (en) * | 2016-12-13 | 2017-05-31 | 中铁隧道勘测设计院有限公司 | A kind of push bench process Tunnel Engineering tube coupling stopping device |
| CN107975374B (en) * | 2017-11-24 | 2019-05-10 | 上海隧道工程有限公司 | The main jacking mechanism of pipe curtain subsurface excavation method jacking construction |
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2019
- 2019-05-09 CN CN201910383210.6A patent/CN110195595B/en active Active
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