CN109667985B - Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction - Google Patents
Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction Download PDFInfo
- Publication number
- CN109667985B CN109667985B CN201811599564.6A CN201811599564A CN109667985B CN 109667985 B CN109667985 B CN 109667985B CN 201811599564 A CN201811599564 A CN 201811599564A CN 109667985 B CN109667985 B CN 109667985B
- Authority
- CN
- China
- Prior art keywords
- steel
- push bench
- steel sleeve
- receiving well
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 214
- 239000010959 steel Substances 0.000 title claims abstract description 214
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 27
- 239000004567 concrete Substances 0.000 claims description 20
- 239000002689 soil Substances 0.000 claims description 10
- 239000011449 brick Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 238000005553 drilling Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000002344 surface layer Substances 0.000 claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000011065 in-situ storage Methods 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a method for butting a push bench with a receiving well steel sleeve in push pipe construction, belongs to the technical field of push pipe construction, and is used for butting the push bench with the receiving well when the receiving well does not have the push bench to enter a hole. According to the method for butting the pipe pushing machine and the steel sleeve of the receiving well in pipe pushing construction, the steel sleeve is preset in the lining wall of the receiving well, the sealing plate for sealing the steel sleeve is arranged, after the shell of the pipe pushing machine is close to the steel sleeve, the inner structure of the pipe pushing machine head and the cutter disc are removed and conveyed out of the working well through the pipe pushing pipeline, and then the pipe pushing machine is in butt joint with the steel sleeve through the butt joint steel ring, so that the pipe pushing machine is in butt joint with the receiving well when the receiving well does not have the condition of entering the pipe pushing machine, and the pipe pushing machine has the advantages of convenience in construction, safety and low cost.
Description
Technical Field
The invention relates to a method for butting a push bench with a receiving well steel sleeve in push construction, belongs to the technical field of push construction, and is used for butting the push bench with the receiving well when the receiving well does not have a push bench for entering a hole.
Background
The pipe jacking construction technology is widely applied to paving, replacing and repairing various pipelines under the condition that the pipeline cannot be excavated or is not allowed to pass through highways, railways, rivers, downtown areas and the like, and has the advantages of low comprehensive cost, small environmental influence and the like, and is particularly widely applied to underground pipelines such as municipal water supply and drainage, communication cables, gas pipelines, power cables and the like.
The pipe jacking construction is to excavate two foundation pit wells from the ground, namely a working well and a receiving well respectively, then the pipe joint is placed from the working well, push the pipe joint to penetrate out from a reserved hole of the working well through jacking of a pushing machine between a main jack and a relay, penetrate through a soil layer to reach the reserved hole edge of the receiving well, and penetrate out through the reserved hole of the receiving well to form a pipeline.
However, in some cases, the pipe pushing machine is already close to the receiving well, but the receiving well does not have the hole entering condition of the pipe pushing machine, for example, the receiving well is also connected with other drainage pipelines and is in a water passing state, and a higher water level exists in the receiving well for a certain period of time, so that how to perform construction is a technical problem to be solved in engineering.
Disclosure of Invention
The invention provides a method for butting a push bench with a receiving well steel sleeve in push bench construction, which is used for butting the push bench with the receiving well when the receiving well is not provided with the push bench for entering a hole.
In order to solve the technical problems, the invention comprises the following technical scheme:
a method for butting a push bench with a receiving well steel sleeve in push bench construction is used for butting the push bench with the receiving well when the receiving well does not have a push bench hole entering condition, and comprises the following steps:
in the construction of the lining wall of the receiving well, pre-burying a steel sleeve at a reserved hole position, pouring the steel sleeve into the lining wall of the receiving well, and arranging a sealing plate in the receiving well to seal the steel sleeve;
stopping jacking when the push bench is jacked to the steel sleeve, grouting and filling the steel sleeve outwards through grouting holes on the push bench, and injecting water-swelling liquid to prevent leakage;
the inner structure and the cutterhead of the push bench head are removed, the push bench head is transported out of the working well through the push pipe pipeline, the reinforced soil body between the push bench shell and the steel sleeve and the enclosure structure of the receiving well are removed through chiseling, a scaffold is built in the push bench shell, a butt-joint steel ring is welded, and the push bench shell and the steel sleeve are welded and fixed through the butt-joint steel ring.
Further, the welding butt-joint steel ring specifically includes: the whole ring butt-joint steel ring is divided into a plurality of arc-shaped steel plates in advance and numbered, two ends of each arc-shaped steel plate are welded with the end part of the shell of the pipe pushing jack and the end part of the steel sleeve respectively in sequence through the numbering sequence, and adjacent arc-shaped steel plates are welded.
Further, the inner diameter of one end of the steel sleeve, which is connected with the push bench shell, is larger than the outer diameter of the push bench shell, the butt-joint steel ring is of a variable cross-section cylindrical structure, one end of the butt-joint steel ring is welded with the end part of the push bench shell, and the other end of the butt-joint steel ring is welded with the end part of the steel sleeve.
Further, after the push bench shell passes through butt joint steel ring and steel sleeve welded fastening, still include, ligature the reinforcing bar of pipeline inside lining, set up the steel form of scaffold fixed pipeline inside lining, pour the concrete, form the pipeline inside lining, the internal surface parallel and level of pipeline inside lining and push bench shell.
Further, the concrete of the pipeline lining is poured from bottom to top for three times, the first time is poured from the bottom to the height of 2/3 of the top pipeline, a region 40cm high in the top of the top pipeline is left after the second time is poured upwards, then the third time of concrete pouring is performed, the die sealing maintenance is performed, and after the concrete reaches the die stripping strength, the steel template of the pipeline lining is removed.
Further, the steel bars of the pipeline lining comprise outer layer longitudinal steel bars, inner layer longitudinal steel bars, outer layer circumferential steel bars fixed with the outer layer longitudinal steel bars and inner layer circumferential steel bars fixed with the inner layer longitudinal steel bars.
Furthermore, the enclosure structure of the receiving well adopts the structure form of an outer layer jet grouting pile and an inner layer drilling filling pile, and the lining wall of the receiving well adopts a reinforced concrete structure.
Further, chiseling the surface layer of the bored pile, simultaneously carrying out horizontal drilling method compaction grouting construction on the reserved hole position and the surrounding bored pile, and carrying out steel sleeve embedding after grouting reinforcement is completed.
Further, after the pouring of the lining wall of the receiving well is completed, the bored pile in the steel sleeve is chiseled, and the retaining brick wall is built.
Further, after the surface layer of the bored pile is chiseled, the steel bars of the bored pile are welded on the steel sleeve, and a steel bracket is arranged below the steel sleeve to support the steel sleeve.
According to the method for butting the pipe pushing machine and the receiving well steel sleeve in pipe pushing construction, the steel sleeve is preset in the lining wall of the receiving well, the sealing plate for sealing the steel sleeve is arranged, after the shell of the pipe pushing machine is close to the steel sleeve, the main structure of the pipe pushing machine head is removed and is transported out of the working well through the pipe pushing pipe, and the pipe pushing machine is butted with the steel sleeve through the butting steel ring, so that the pipe pushing machine is butted with the receiving well when the receiving well does not have the hole entering condition of the pipe pushing machine, and the method has the advantages of convenience in construction, safety and low cost.
Drawings
FIG. 1 is a schematic view of a manhole enclosure, lining wall and piping according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a structure for abutting a push bench with a receiving well steel casing in push construction according to an embodiment of the present invention;
FIG. 3 is a schematic view of a steel bushing according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic view of a seal plate according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 7 is a schematic structural view of a butt-joint steel ring according to an embodiment of the present invention;
fig. 8 is a schematic view of a lining wall reinforcement according to an embodiment of the present invention;
fig. 9 is a schematic view of layered casting of concrete in an inner layer of a pipeline according to an embodiment of the present invention.
The labels in the figures are as follows:
10-a receiving well; 110-jet grouting piles; 120-drilling a filling pile; 130-lining a wall; 140-steel sleeve; 141-an embedded flange plate; 142-nuts; 150-sealing plates; 151-bolt holes;
20-jacking pipe; 210-a shell of the pipe jacking machine; 220-butting steel rings; 230-lining the pipeline; 231-outer layer longitudinal steel bars; 233-inner layer longitudinal steel bars; 232-outer layer circumferential reinforcing steel bars; 234-inner layer circumferential rebar.
Detailed Description
The method for butting the push bench with the receiving well steel sleeve in the push pipe construction provided by the invention is further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
Example 1
The embodiment provides a method for butting a push bench with a steel sleeve of a receiving well in push bench construction, which is used for butting the push bench with the receiving well when the receiving well does not have a push bench hole entering condition, and is further described below with reference to fig. 1 to 9. The method comprises the following steps:
step one: in construction of the lining wall 130 of the receiving well 10, the steel sleeve 140 is pre-buried at the reserved hole position, the steel sleeve 140 is poured into the lining wall 130 of the receiving well 10, and the sealing plate 150 is arranged in the receiving well 10 to seal the steel sleeve 140.
Referring to fig. 1 and 2, the enclosure structure of the receiving well 10 adopts the structure form of an outer layer jet grouting pile 110 and an inner layer bored pile 120, and the lining wall 130 of the receiving well 10 adopts a reinforced concrete structure. By way of example, the diameter of both the jet grouting pile 110 and the bored pile 120 is 800mm.
Wherein, pre-burying the steel sleeve 140 at the reserved hole position specifically includes: the surface layer of the bored pile 120 is firstly chiseled, meanwhile, the horizontal drilling method compaction grouting construction is carried out on the reserved hole position and the surrounding bored piles, and after grouting reinforcement is completed, the steel sleeve 140 is pre-buried. After the surface layer of the bored pile 120 is chiseled, the steel bars of the bored pile 120 are welded to the steel casing 140, and steel corbels are arranged below the steel casing 140 to support the steel casing 140. After the lining wall 130 of the receiving well 10 is poured, the bored pile 120 in the steel sleeve 140 is chiseled, a retaining brick wall is built, and then a sealing plate 150 is arranged to seal the steel sleeve 140.
As shown in fig. 3 and 4, the steel sleeve 140 adopts a variable cross-section form, and comprises a small diameter section with an inner diameter of 3200mm and a large diameter section with an inner diameter of 3900mm, wherein the wall thickness is 20mm, the small diameter section is used for being in butt joint with the sealing plate 150, and the large diameter section is used for being in butt joint with the pipe-jacking pipeline 20. The steel sleeve 140 is provided with a built-in flange 141, and the built-in flange 141 is provided with 48M 20 cap nuts 142. As shown in fig. 5 and 6, 48 bolt holes 151 matching with the nuts 142 on the steel sleeve 140 are provided on the sealing plate 150, and the steel sleeve 140 is connected with the sealing plate 150 by bolts.
Step two: and stopping jacking when the push bench is jacked to the position of the steel sleeve 140, grouting and filling the push bench outwards through grouting holes on the push bench, and injecting water-swelling liquid to prevent leakage. By way of example, the bored pile 120 is slowly milled and cut by a head cutterhead of the push bench, and jacking is stopped when the cut thickness of the bored pile 120 reaches 30 cm.
Step three: the inner structure and the cutterhead of the push bench head are removed, the push bench head is transported out of the working well through the push pipe pipeline 20, the reinforced soil body between the push bench shell 210 and the steel sleeve 140 and the enclosure structure of the receiving well are chiseled, a scaffold is built in the push bench shell 210, a butt-joint steel ring is welded, and the push bench shell 210 and the steel sleeve 140 are welded and fixed through the butt-joint steel ring 220. The internal structure and cutterhead of the push bench head are removed, leaving the push bench housing 210 for interfacing with the steel sleeve 140. In the second step, grouting, filling and injecting the water-swelling liquid to form a reinforced soil body, and the pipe jacking machine is jacked into the cast-in-situ bored pile 120 enclosure structure of the receiving well, so that the reinforced soil body between the pipe jacking machine shell 210 and the steel sleeve 140 and the cast-in-situ bored pile 120 need to be chiseled.
As shown in fig. 2, the inner diameter of the end of the steel sleeve 140 connected to the push bench casing 210 is larger than the outer diameter of the push bench casing 210, and as shown in fig. 2 and 7, the docking steel ring 220 has a variable cross-section cylindrical structure, one end is welded to the end of the push bench casing 210, and the other end is welded to the end of the steel sleeve 140.
Wherein, welding butt joint steel ring specifically includes: the whole ring butt-joint steel ring 220 is divided into a plurality of arc-shaped steel plates in advance and numbered, two ends of the arc-shaped steel plates are respectively welded with the end part of the push bench shell 210 and the end part of the steel sleeve 140 in sequence through the numbering sequence, and adjacent arc-shaped steel plates are welded.
Preferably, after the push bench housing 210 is welded and fixed to the steel sleeve 140 by the docking steel ring 220, it further comprises,
step four: binding steel bars of the pipeline lining 230, erecting a steel template for fixing the pipeline lining 230 by a scaffold, and pouring concrete to form the pipeline lining 230, wherein the inner surface of the pipeline lining 230 is flush with the inner surface of the push bench shell 210.
As shown in fig. 2, the pipe lining 230 has a cylindrical structure with a pointed end. As shown in fig. 8, the steel bars of the pipe lining 230 include outer longitudinal steel bars 231, inner longitudinal steel bars 233, outer circumferential steel bars 232 fixed to the outer longitudinal steel bars 231, and inner circumferential steel bars 234 fixed to the inner longitudinal steel bars 233.
As shown in fig. 9, the concrete of the pipe lining 230 is poured from bottom to top three times, the height of the pipe is D, the first time from the bottom to the 2/3 height of the pipe is poured upwards, the area 40cm high at the top of the pipe is left after the second time of upward pouring, then the third time of concrete pouring is performed, the mold sealing maintenance is performed, and after the concrete reaches the mold removing strength, the steel mold of the pipe lining 230 is removed.
Example two
Specific applications of the method for butting a push bench with a receiving well steel sleeve in the push construction are further described below with reference to fig. 1 to 9.
In a certain project, the whole length of a pipe-jacking pipeline 20 from a working well to a receiving well 10 is 111.3m, the pipe diameter is phi 3000, the elevation of the center of the pipeline is-3.60 m to-3.73 m, the soil covering depth is about 4.5m, and an F-shaped steel bellmouth type reinforced concrete pipe is adopted. In the pipe jacking construction process, the superior unit requires that part of the pipeline needs to exert the water passing function in advance, and underground butt joint is carried out with the receiving well 10 under the water passing condition when the phi 3000 pipe jacking is subjected to conditional construction.
The receiving well 10 adopts the phi 800 bored cast-in-place pile 120+phi 800 jet grouting pile 110 as an enclosure structure, the lining wall 130 of the receiving well 10 is a poured reinforced concrete structure, and the phi 800 jet grouting pile 110 is provided with 4 rows. Firstly, the surface layer of a bored pile 120 is chiseled, the thickness of 1/3 of the diameter of the phi 800 bored pile 120 is chiseled, meanwhile, the horizontal drilling method compaction grouting construction is carried out on the reserved hole position and the peripheral bored piles, the grouting depth is 3m, the grouting hole spacing is 1m, the grouting surface is 5m wide by 6m high, after grouting reinforcement is finished, the steel sleeve 140 is embedded, finally, the lining wall 130 of the receiving well 10 is cast after the installation is finished, and the steel sleeve 140 is cast in the lining wall 130 of the receiving well 10. The remaining cast-in-situ bored piles 120 in the steel casing 140 are all chiseled off, and the retaining brick wall is immediately built up to fill (37 brick wall), and the cast-in-situ bored piles 120 are chiseled off three times, with the chiseling order being first two sides (each side once) and then the middle (middle once). After the first time of drilling is finished, brick walls are immediately built to fill up the drilled hole tubular pile areas, so that the whole support of the bored pile 120 and the stability of surrounding soil bodies are ensured; then the second bored pile 120 is chiseled out, the brick wall is built and filled up, finally the third bored pile 120 is chiseled out, the brick wall is built and filled up, and the construction of the retaining brick wall is completed. Finally, the machined steel sealing plate 150 is mounted on the steel sleeve 140, and the sealing plate 150 is mounted by adopting a built-in flange 141 type mounting method. The steel sleeve 140 adopts a variable cross-section form, and comprises a small diameter section with the inner diameter of 3200mm and a large diameter section with the inner diameter of 3900mm, wherein the wall thickness is 20mm, the small diameter section is used for being in butt joint with the sealing plate 150, and the large diameter section is used for being in butt joint with the pipe-jacking pipeline 20.
Before the steel sleeve 140 is installed, the specific position of a reserved hole of the receiving well 10 is firstly determined, hole lofting is carried out on the axes of the working well and the pipe jacking pipeline 20 of the receiving well 10, and then the position of a large-diameter section of the DN3900 steel sleeve 140 is played on the basis of the central position of the hole. The steel sleeve 140 is installed in a reserved hole of the receiving well 10, longitudinal steel bars of the bored pile 120 of which the part is chiseled out are welded on the steel sleeve 140, a steel bracket support is manufactured below the steel sleeve 140, and finally the steel sleeve 140 is cast in the lining wall 130 of the receiving well 10.
The pipe jacking machine adopts a scroll earth pressure balanced heading machine, and grouting holes are reserved on a shell 210 of the pipe jacking machine. And (3) jacking construction of the phi 3000 concrete pipeline until the push bench is jacked to the position of the steel sleeve 140 pre-embedded in the receiving well 10, and stopping jacking. When the jacking pipe is jacked to the bored pile 120, the jacking speed is reduced, the jacking force and the soil pressure are timely controlled, and the head cutterhead of the pipe jacking machine is utilized to slowly mill and cut the envelope structure of the bored pile 120 to stop jacking by about 30 cm. Yellow mud is injected outwards through a grouting hole reserved in the pipe push bench to fill, and the filling amount is according to the settlement observation condition, and water swelling liquid is injected at the same time to further ensure no leakage.
Removing the inner structure of the machine head, manually chiseling out the bored pile 120 between the steel sleeve 140 and the push bench shell 210, sealing, connecting and welding the push bench shell 210 and the steel sleeve 140, finally binding steel bars of the pipeline lining 230 in the steel sleeve 140, pouring concrete of the pipeline lining 230, enabling the pipeline lining 230 and the steel sleeve 140 to be integrated, and enabling the poured pipeline lining 230 to be flush with the inner surface of the push bench shell 210. The cast-in-situ bored pile 120 between the steel sleeve 140 and the casing 210 of the pipe push bench is manually chiseled, and a scaffold is required to be erected, and chiseling is performed three times, wherein the chiseling sequence is from top to bottom. When the bored pile 120 is chiseled, butt-joint steel ring 220 is welded and filled while chiseling is performed, and the butt-joint steel ring 220 is welded in 10 sections and segments.
After the shell 210 of the push bench is connected with the steel sleeve 140 through the butt-joint steel ring 220, the steel bar of the pipeline lining 230 is bound, the formwork support is erected, and finally, the concrete casting with the same grade as the pipeline joint is carried out to form the pipeline lining 230. The pipe lining 230 has a cylindrical structure with a tip end, and has an inner diameter equal to that of the push bench casing 210 and an outer diameter equal to that of the large diameter end of the steel sleeve. The concrete of the pipe lining 230 is poured in 3 times, the first time from the bottom up to the 2/3 part of the pipe, the second time up to leave a region with the top height of 40cm, and the third time to perform the rest concrete pouring. And vibrating each layer of concrete from bottom to top after pouring, and sealing and curing after the concrete filling and vibrating are finished at the top.
Example III
The embodiment provides a butting structure of a push bench and a receiving well steel sleeve in push pipe construction, and the butting structure is further described below with reference to fig. 1 to 9.
As shown in fig. 2, the docking structure includes a steel sleeve 140, a sealing plate 150, a push bench casing 210 and a docking steel ring 220, wherein the steel sleeve 140 is pre-embedded in the lining wall 130 of the receiving well 10 and is concentric with the push pipe pipeline 20; a sealing plate 150 is disposed in the receiving well 10, is connected with the steel sleeve 140 by bolts, and is used for sealing off the steel sleeve 140; the push bench shell 210 is located in the soil body near the steel sleeve 140 and forms a part of the push pipe 20; one end of the butting steel ring 220 is welded with the end of the push bench shell 210, and the other end is welded with the end of the steel sleeve 140.
In the pipe jacking construction provided by this embodiment, the steel sleeve 140 is preset in the lining wall 130 of the receiving well 10, and the sealing plate 150 for sealing the steel sleeve 140 is arranged, after the pipe jacking machine shell 210 is close to the steel sleeve 140, the main structure of the pipe jacking machine head is removed and is transported out from the working well through the pipe jacking pipeline, and the pipe jacking pipeline 20 is in butt joint with the steel sleeve 140 through the butt joint steel ring 220, so that the pipe jacking pipeline 20 is in butt joint with the receiving well 10 when the receiving well 10 does not have the pipe jacking machine hole entering condition, and the pipe jacking construction method has the advantages of convenience in construction, safety and low cost.
In a preferred embodiment, as shown in fig. 7, the docking steel ring 220 is formed by welding a plurality of arc-shaped steel plates, one end of each arc-shaped steel plate is welded to the end of the push bench shell 210, the other end is welded to the end of the steel sleeve 140, and the adjacent arc-shaped steel plates are welded and fixed. Referring to fig. 2 and 7, the inner diameter of the end of the steel sleeve 140 connected with the push bench shell 210 is larger than the outer diameter of the push bench shell 210, and the docking steel ring 220 is of a variable-section cylindrical structure, so that the push bench shell 210 and the steel sleeve 140 are conveniently docked in the push bench construction of the steel sleeve 140.
In a preferred embodiment, as shown in fig. 2, a pipe lining 230 with reinforced concrete structure is further disposed in the steel sleeve 140, and an inner surface of the pipe lining 230 is flush with an inner surface of the push bench shell 210. As shown in fig. 8, the steel bars of the pipe lining 230 include outer longitudinal steel bars 231, inner longitudinal steel bars 233, outer circumferential steel bars 232 fixed to the outer longitudinal steel bars 231, and inner circumferential steel bars 234 fixed to the inner longitudinal steel bars 233.
Further, as shown in fig. 3 to 6, a built-in flange 141 is provided on a side of the steel sleeve 140 facing the receiving well 10, a plurality of nuts 142 are provided on the built-in flange 141, bolt holes 151 are correspondingly provided on the sealing plate 150, and screws of the bolts are fixed on the nuts 142 through the bolt holes 151.
Further, as shown in fig. 1 and 2, the enclosure structure of the receiving well 10 includes an outer layer of jet grouting piles 110 and an inner layer of bored piles 120, and one end of the push bench casing 210 extends into the bored piles 120. Further, one end of the steel sleeve 140 extends into the bored pile 120, a reinforcement cage is arranged in the bored pile 120, and longitudinal reinforcement of the bored pile 120 passing through the position of the steel sleeve 140 is welded on the steel sleeve 140 after being broken.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. A method for butting a push bench with a receiving well steel sleeve in push bench construction is used for butting the push bench with the receiving well when the receiving well does not have a push bench hole entering condition, and is characterized by comprising the following steps:
in the construction of the lining wall of the receiving well, pre-burying a steel sleeve at a reserved hole position, pouring the steel sleeve into the lining wall of the receiving well, and arranging a sealing plate in the receiving well to seal the steel sleeve;
stopping jacking when the push bench is jacked to the steel sleeve, grouting and filling the steel sleeve outwards through grouting holes on the push bench, and injecting water-swelling liquid to prevent leakage;
removing the internal structure of the head of the pipe push bench and a cutter head, transporting the pipe push bench out of a working well through a pipe push pipeline, chiseling out a reinforced soil body between the casing of the pipe push bench and a steel sleeve and an enclosure structure of a receiving well, erecting a scaffold in the casing of the pipe push bench, welding a butt-joint steel ring, and welding and fixing the casing of the pipe push bench and the steel sleeve through the butt-joint steel ring;
wherein, welding butt joint steel ring specifically includes: dividing the whole ring butt-joint steel ring into a plurality of arc-shaped steel plates in advance, numbering, welding two ends of the arc-shaped steel plates with the end part of the shell of the pipe jacking machine and the end part of the steel sleeve respectively in sequence through numbering, and welding adjacent arc-shaped steel plates; the inner diameter of one end of the steel sleeve, which is connected with the push bench shell, is larger than the outer diameter of the push bench shell, the butt steel ring is of a variable cross-section cylindrical structure, one end of the butt steel ring is welded with the end part of the push bench shell, and the other end of the butt steel ring is welded with the end part of the steel sleeve;
after the shell of the pipe push bench is welded and fixed with the steel sleeve through the butt-joint steel ring, the pipe push bench further comprises binding steel bars of the pipeline lining, erecting a steel template for fixing the pipeline lining by a scaffold, and pouring concrete to form the pipeline lining, wherein the inner surface of the pipeline lining is flush with the inner surface of the shell of the pipe push bench; the concrete of the pipeline lining is poured from bottom to top for three times, the first time is poured from the bottom to the height of 2/3 of the top pipeline, a region 40cm high at the top of the top pipeline is left after the second time is poured upwards, then the third time of concrete pouring is performed, the die sealing maintenance is performed, and after the concrete reaches the die stripping strength, the steel template of the pipeline lining is removed; the steel bars of the pipeline lining comprise outer layer longitudinal steel bars, inner layer longitudinal steel bars, outer layer circumferential steel bars fixed with the outer layer longitudinal steel bars and inner layer circumferential steel bars fixed with the inner layer longitudinal steel bars.
2. The method of claim 1, wherein,
the enclosure structure of the receiving well adopts the structure form of an outer layer jet grouting pile and an inner layer drilling filling pile, and the lining wall of the receiving well adopts a reinforced concrete structure.
3. The method of claim 2, wherein embedding the steel sleeve at the pre-hole location comprises:
firstly chiseling the surface layer of the bored pile, simultaneously carrying out horizontal drilling method compaction grouting construction on the reserved hole position and the surrounding bored pile, and after grouting reinforcement is completed, carrying out steel sleeve embedding.
4. A method according to claim 3, wherein after the completion of the casting of the receiving well lining wall, the bored pile in the steel casing is chiseled and the retaining brick wall is built.
5. A method according to claim 3, wherein after the surface layer of the bored pile is chiseled, the steel bars of the bored pile are welded to the steel casing, and steel corbels are arranged below the steel casing to support the steel casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599564.6A CN109667985B (en) | 2018-12-26 | 2018-12-26 | Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599564.6A CN109667985B (en) | 2018-12-26 | 2018-12-26 | Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109667985A CN109667985A (en) | 2019-04-23 |
| CN109667985B true CN109667985B (en) | 2024-04-16 |
Family
ID=66146836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811599564.6A Active CN109667985B (en) | 2018-12-26 | 2018-12-26 | Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109667985B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387940A (en) * | 2019-07-22 | 2019-10-29 | 广东天濠建设工程有限公司 | Municipal subsoil drain pipeline construction method |
| CN110359540B (en) * | 2019-08-02 | 2024-04-19 | 中铁建设集团北京工程有限公司 | Manual pipe jacking construction method for shallow-covered large-pipe-diameter high-water-level existing road |
| CN110307000B (en) * | 2019-08-06 | 2024-07-02 | 中建四局土木工程有限公司 | Push bench and push pipe receiving method |
| CN112377203B (en) * | 2020-11-10 | 2022-09-23 | 常熟市市政建设有限责任公司 | Construction method for repairing large-deviation jacking pipe by reversely jacking steel sleeve |
| CN116045077B (en) * | 2023-02-16 | 2024-04-26 | 中交一公局集团有限公司 | Large-diameter direct-buried pipeline installation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252379A (en) * | 1997-03-13 | 1998-09-22 | Kuwaharagumi:Kk | Freezing method and device of opening periphery or the like for steel shaft |
| CN101749021A (en) * | 2008-12-18 | 2010-06-23 | 上海市机械施工有限公司 | The oblique method of reseptance that enters in the narrow receiving well of push-bench during a kind of underground jacking construction |
| CN101892846A (en) * | 2010-07-13 | 2010-11-24 | 中铁三局集团有限公司 | Shield burial method for receiving and plugging overexcavation gap in high-water-pressure stratum |
| CN202925564U (en) * | 2012-10-24 | 2013-05-08 | 上海市城市建设设计研究总院 | Tunnel shield receiving structure without working well of existing cellar structure |
| CN106014427A (en) * | 2016-07-05 | 2016-10-12 | 深圳市路桥建设集团有限公司 | Construction method of receiving well pipe jacking machine and steel sleeve for construction |
| CN106640107A (en) * | 2016-12-16 | 2017-05-10 | 上海市城市建设设计研究总院 | Tool of jacking pipe entering tunnel in foamed soil without need of foundation reinforcement outside pit and construction method thereof |
| CN209622195U (en) * | 2018-12-26 | 2019-11-12 | 上海市政建设有限公司 | Push-bench and received well steel sleeve docking structure in a kind of jacking construction |
-
2018
- 2018-12-26 CN CN201811599564.6A patent/CN109667985B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252379A (en) * | 1997-03-13 | 1998-09-22 | Kuwaharagumi:Kk | Freezing method and device of opening periphery or the like for steel shaft |
| CN101749021A (en) * | 2008-12-18 | 2010-06-23 | 上海市机械施工有限公司 | The oblique method of reseptance that enters in the narrow receiving well of push-bench during a kind of underground jacking construction |
| CN101892846A (en) * | 2010-07-13 | 2010-11-24 | 中铁三局集团有限公司 | Shield burial method for receiving and plugging overexcavation gap in high-water-pressure stratum |
| CN202925564U (en) * | 2012-10-24 | 2013-05-08 | 上海市城市建设设计研究总院 | Tunnel shield receiving structure without working well of existing cellar structure |
| CN106014427A (en) * | 2016-07-05 | 2016-10-12 | 深圳市路桥建设集团有限公司 | Construction method of receiving well pipe jacking machine and steel sleeve for construction |
| CN106640107A (en) * | 2016-12-16 | 2017-05-10 | 上海市城市建设设计研究总院 | Tool of jacking pipe entering tunnel in foamed soil without need of foundation reinforcement outside pit and construction method thereof |
| CN209622195U (en) * | 2018-12-26 | 2019-11-12 | 上海市政建设有限公司 | Push-bench and received well steel sleeve docking structure in a kind of jacking construction |
Non-Patent Citations (4)
| Title |
|---|
| 利用既有超小竖井的盾构主机分体接收技术研究;郑红亮;铁道建筑技术(第2018年第2期);第 12-16页 * |
| 运营中地下室无接收井条件下的顶管进洞设计要点分析;黄斌;建筑结构;第45卷(第2015年10期);第200-203页 * |
| 钢套筒在地铁隧道盾构接收中的应用;张中安;铁道标准设计;第第60卷卷(第第2期期);第110-112页 * |
| 顶管施工障碍物处理技术综述;屈勇等;人民长江;第第49卷卷(第第21期期);第77-82页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109667985A (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109667985B (en) | Method for butting pipe pushing jack and receiving well steel sleeve in pipe pushing construction | |
| US11143027B2 (en) | Rectangular working well with preset pipe jacking hole and sliding back wall in water-rich stratum and construction method thereof | |
| WO2020173100A1 (en) | Reinforcement apparatus and construction method for local freezing reinforcement of deep foundation pit in water-rich sand gravel stratum | |
| JP6762800B2 (en) | Reinforcement method and structure of existing pile foundation | |
| CN109778992B (en) | Horse riding well device for pipeline construction and construction method thereof | |
| CN106320333B (en) | Combined drainage type water filling pile device and construction method | |
| CN109826630B (en) | Precast concrete open caisson device for pipe jacking construction and construction method thereof | |
| CN110847207B (en) | Structure and construction method for newly-built bridge by crossing existing bridge piles through subway tunnel | |
| CN211340827U (en) | Structure for newly building bridge by passing through existing bridge piles in subway tunnel | |
| CN110485468B (en) | Permanent circular working well with water-rich stratum preset jacking pipe door opening and construction method thereof | |
| KR20030038237A (en) | Construction establishment method and the structure for underground tunnel formation | |
| CN113668564A (en) | Construction method for supporting and reinforcing open-cut underground passage adjacent to subway station | |
| CN211816279U (en) | New and old ground is wall interface processing structure even | |
| CN113685190B (en) | Reinforcing system for shield to penetrate shallow soft clay and construction method | |
| CN207538090U (en) | A kind of externally reinforced structure of Urban underground Tunnel | |
| CN216839456U (en) | Post grouting device for pile end of steel pipe pile | |
| CN113529830B (en) | Isolation-underpinning combined reinforcement structure of adjacent building of shallow tunnel and construction process thereof | |
| CN113266362B (en) | Top pipe cover excavation construction method for penetrating through existing dense anchor cable area | |
| CN209622195U (en) | Push-bench and received well steel sleeve docking structure in a kind of jacking construction | |
| CN212427155U (en) | Tongue-and-groove type prefabricated underground continuous wall structure | |
| CN114411745A (en) | Post-grouting device for pile end of steel pipe pile and construction method thereof | |
| CN110485465B (en) | Circular working well with water-rich stratum with preset pipe jacking door opening and construction method of circular working well | |
| CN114382158B (en) | Construction method of gas permeable well | |
| CN111501769B (en) | Construction method for protecting vertical main pipe of thermal spring well in foundation pit | |
| CN114382157B (en) | Construction method of concrete gas permeable well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |