CN204986007U - A purpose -built aircraft nose for crossing river is push pipe butt joint construction in opposite directions - Google Patents
A purpose -built aircraft nose for crossing river is push pipe butt joint construction in opposite directions Download PDFInfo
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- CN204986007U CN204986007U CN201520689333.XU CN201520689333U CN204986007U CN 204986007 U CN204986007 U CN 204986007U CN 201520689333 U CN201520689333 U CN 201520689333U CN 204986007 U CN204986007 U CN 204986007U
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- pipe
- working disk
- inner platform
- aircraft nose
- head
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Abstract
The utility model relates to an underground piping construction equipment in the municipal works proposes to be used for river push pipe butt joint construction process's purpose -built aircraft nose in opposite directions, and it is improved generation water -washed formula tunnelling aircraft nose, its minute anterior segment pipe and back end pipe, and the equipartition has 4-8 hydro -cylinders of rectifying a deviation between anterior segment pipe and the back end pipe, establish a work dish section of thick bamboo in the front end of anterior segment pipe, fixed connection work dish is nearby held to a work dish section of thick bamboo, and work dish telescoping device is connected in a work dish section of thick bamboo and head tube afterbody between the platform, and work dish lower part is equipped with the water inlet and a plurality of work hole, the interim shutoff of work hole adoption threaded cap have been arranged to pai nikou, periphery, adopt the utility model discloses the time, ordinary push pipe aircraft nose is adopted to river course one side, and the opposite side has adopted the great purpose -built aircraft nose of diameter, makes purpose -built aircraft nose aim at ordinary push pipe aircraft nose during the butt joint of two -way push pipe, and purpose -built aircraft nose continues to withdraw the work dish of front end through work dish telescoping device when the top is advanced backward, inserts the butt joint 1000mm of purpose -built aircraft nose until ordinary push pipe aircraft nose front end cover, then through the slip casting pipe to water injection mud shutoff in the butt joint of work dish front end. Adopt the utility model discloses can ensure that thereby the smooth butt joint of two -way push pipe successfully reaches the seal intensity of guaranteeing the butt joint section and makes butt joint department reliably sealed.
Description
Technical field
The utility model relates to underground pipeline construction in municipal engineering, particularly major diameter push pipe docking construction equipment in opposite directions.
Background technique
Jacking construction, as the construction process of a kind of advanced person, is used widely, is achieved good effect in the municipal engineering such as underground deep layer sewage conduct, cable pipe, underpass.But the City Regions in length and breadth in river course, the setting of active well, received well is subject to many limitations, particularly cross river pipe-jacking project geological condition more complicated, engineering construction is made to face many difficulties, for reducing disposable jacking length, reduce construction risk, need to beg for a kind of new push pipe interconnection technique and equipment.
Summary of the invention
The purpose of this utility model be propose a kind of for cross river in opposite directions push pipe docking construction special head, it carries out using in the arrangement and method for construction docked in the middle of the jacking simultaneously to river course of both sides, river course, can guarantee that two-way push pipe docks success smoothly and makes joint reliable sealing, accelerating construction progress.
The purpose of this utility model realizes by following technological scheme:
For cross river in opposite directions push pipe docking construction special head, it is modified model water-flushing type driving head, special head divides leading portion pipe and back segment pipe, the nearly rear end of leading portion pipe is equipped with front pipe afterbody inner platform, the front end of back segment pipe and nearly rear end are equipped with the anterior inner platform of rear pipe and rear pipe afterbody inner platform respectively, 4 ~ 8 correction oil cylinders are evenly equipped with between front pipe afterbody inner platform and the anterior inner platform of rear pipe, back segment pipe front end is fixedly connected with connecting head, connecting head has the extension stretched in leading portion pipe rear end, leading portion pipe and back segment pipe are tightly connected by seal ring and connecting head, the rear pipe afterbody inner platform of back segment pipe makes jacking platform,
A working disk cylinder and working disk expansion device is established in the front end of leading portion pipe, working disk cylinder front end internal fixtion connects working disk, working disk tube rear end has working disk cylinder inner platform, working disk drum outer wall and leading portion inner tube wall adopt working disk seal ring to be tightly connected, working disk expansion device is connected between working disk cylinder inner platform and front pipe afterbody inner platform, working disk can be made to move inward 1200 ~ 1500mm from the mouth of pipe of leading portion pipe by working disk expansion device makes the front end of special head become butt joint, working disk bottom is provided with water intake and mud discharging mouth, periphery has some working holes, working hole adopts threaded cap temporary plugging.
The utility model was used for river in opposite directions push pipe docking construction time, side, river course adopts ordinary topping pipe head, opposite side have employed the larger special head of diameter, and the leading portion pipe of special head and the inner diameter of back segment pipe are greater than the outer diameter at least 200mm of ordinary topping pipe head and push pipe.
During docking, ordinary topping pipe head wants Measurement accuracy to determine its position after arriving precalculated position, special head is according to the position of ordinary topping pipe head, precise positioning, special head is made to aim at ordinary topping pipe head, special head continues jacking, is retracted by the working disk of special head front end, until ordinary topping pipe head front end sleeve accesses the butt joint at least 1000mm of special head by working disk cylinder and working disk expansion device simultaneously backward;
Then remove the threaded cap on the working hole of the working disk surrounding of special head, then insert slurry injection pipe in working hole, by slurry injection pipe to cement injection shutoff in the butt joint of working disk front end.
Finally, until grouting cement soil compressive strength reach be greater than 1MPa after take out the cutterhead of No. 1 push pipe head and work system, the working disk of the special head of taking-up, working disk expansion device, correction oil cylinder, water filling filling system and sludge drainage system with cutting equipment, with steel plate by No. 1 push pipe head front tube and special head leading portion inner tube wall welded seal, by the leading portion pipe of special head and the connecting head welded seal of back segment pipe, complete docking.
Be compared with the prior art, the utility model has following substantive distinguishing features and progress:
1, have can the working disk of movement backward for the utility model, can guarantee that two-way push pipe docks successfully smoothly in construction.
2, adopt the utility model the technological scheme of cement injection shutoff in butt joint, can ensure that the seal intensity of Butt Section enough resists the outer groundwater pressure of pipe and earth pressure, thus make joint reliable sealing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is A-A sectional view of Fig. 2.
Fig. 3 is that ordinary topping pipe head docks schematic diagram with the utility model.
Embodiment
Below with a specific embodiment, the utility model is described in further detail.
With reference to figure 1, Fig. 2 and Fig. 3, for cross river in opposite directions push pipe docking construction special head, special head 2 points of leading portion pipes 21 and back segment pipe 22, the length of leading portion pipe 21 is 2000mm, inner diameter is 1970mm, wall thickness is 25mm, and the length of back segment pipe 22 is 3000mm, inner diameter is 1980mm, wall thickness is 20mm, the nearly rear end of leading portion pipe 21 is equipped with front pipe afterbody inner platform 212, the front end of back segment pipe 22 and nearly rear end are equipped with the anterior inner platform 221 of rear pipe and rear pipe afterbody inner platform 222 respectively, 4 (also can be 8) correction oil cylinder 23 is evenly equipped with between front pipe afterbody inner platform 212 and the anterior inner platform 221 of rear pipe, back segment pipe 22 front end is fixedly connected with connecting head 220, connecting head 220 has the extension stretching into 400mm in leading portion pipe 21 rear end, leading portion pipe 21 and back segment pipe 22 are tightly connected by the extension of seal ring and connecting head 220, the rear pipe afterbody inner platform 222 of back segment pipe 22 makes jacking platform, a working disk cylinder 27 and working disk expansion device 26 is established in the front end of leading portion pipe 21, the external diameter of working disk cylinder 27 is 1950mm, length is 60mm, working disk cylinder 27 front end internal fixtion connects working disk 25, working disk cylinder 27 rear end has working disk cylinder inner platform 271, working disk 25 away from working disk cylinder inner platform 271 side, there is floor 250, working disk cylinder 27 outer wall and leading portion pipe 21 inwall adopt working disk seal ring 270 to be tightly connected, working disk expansion device 26 is connected between working disk cylinder inner platform 271 and front pipe afterbody inner platform 212 (the present embodiment adopts 4 uniform synchronous fuel tanks as working disk expansion device), working disk 25 can be made to move inward 1200 ~ 1500mm from the nearly mouth of pipe of leading portion pipe 21 by working disk expansion device 26 makes the front end of special head 2 become butt joint, working disk 25 bottom is provided with water intake 251 and mud discharging mouth 252, periphery has the working hole diameter of some working hole 253(the present embodiment to be 35mm), working hole 253 adopts threaded cap 254 temporary plugging.
The utility model was used for river push pipe docking construction in opposite directions, and adopted the arrangement and method for construction carrying out in the middle of the jacking simultaneously to river course of both sides, river course docking, be divided into No. 1 jacking construction side and No. 2 jacking construction sides, comprise the steps.
Prepare before step 1, construction
No. 1 jacking construction side adopts No. 1 push pipe head, and No. 1 push pipe head is that the common mud-water balance band cutterhead (outer diameter 1700mm) of prior art tunnels head, and No. 2 jacking construction sides adopt aforementioned special heads.
Step 2, construction of working shaft and equipment are installed
(2.1) No. 1 active well and No. 2 construction of working shafts are carried out in the two sides in river according to design drawing; No. 1 active well is positioned at No. 1 jacking construction side head end, and No. 2 active wells are positioned at No. 2 jacking construction side head ends, attachment rail bottom active well, install jacking device respectively at No. 1 active well and No. 2 active wells.
(2.2) in active well position through walls, steel flange and waterstop sealing rubber are installed, No. 1 push pipe head 1 are lifted on the track of No. 1 active well, special head 2 is lifted on the track of No. 2 active wells; Water injection pump is installed in No. 2 active wells and goes out the Pulp pump of mud and on the water intake 251 connected with steel tube on the working disk 25 of special head 2 front end and mud discharging mouth 252; Settle surveying instrument in No. 1 active well side and No. 2 active well sides, surveying instrument has electronic tachometer, vertical cultellation instrument, level instrument; No. 1 push pipe head 1 and special head 2 are provided with the measurement target core for Received signal strength.
Step 3, normal jacking construction
(3.1) with jack No. 1 push pipe head 1 and special head 2 advanced working head is reclined the waterstop sealing rubber of active well position through walls.
(3.2) measure with surveying instrument and adjust the direction of propulsion of No. 1 push pipe head 1 and special head 2.
(3.3) No. 1 jacking construction side of No. 1 push pipe head 1 is adopted to carry out jacking operation by existing mud-water balance Construction Technology of With standing Operation, be provided with work system, deviation-rectifying system and sludge drainage system in No. 1 push pipe head 1, adopt between No. 1 push pipe head 1 and push pipe, between push pipe and push pipe and be welded to connect; Adopt No. 2 jacking construction sides of special head 2 to carry out jacking operation by water-flushing type tunneling technique, be provided with water filling filling system and sludge drainage system in special head 2, jacking adopts water-flushing type driving, slurry pump mud extraction; Waterstop sealing rubber ring is installed additional in active well position through walls again after special head jacking; Adopt Flange joint between special head 2 and push pipe, adopt between push pipe and push pipe and be welded to connect; Measure jacking direction with surveying instrument while No. 1 jacking construction side and No. 2 two-way jackings in jacking construction side, and rectify a deviation in time.
Step 4, the construction of docking position
Measurement accuracy is wanted to determine its position after No. 1 push pipe head 1 of (4.1) No. 1 jacking construction sides arrives precalculated position, the special head 2 of No. 2 jacking construction sides is according to the position of No. 1 push pipe head 1, precise positioning, special head 2 is made to aim at No. 1 push pipe head 1, special head 2 continues jacking, be 4 synchronous fuel tanks by the working disk 25 of special head 2 front end by working disk cylinder 27 and working disk expansion device 26(the present embodiment simultaneously) retract, until No. 1 push pipe head front end sleeve accesses the butt joint 1000 ~ 1200mm(of special head 2 as Fig. 2) backward.
(4.2) threaded cap 254 on the working hole 253 in working disk 25 surrounding of special head 2 is removed, in working hole 253, to insert slurry injection pipe 28(length be again 1500mm pipe diameter is 32mm, accompanying drawing only marks part slurry injection pipe), then pass through slurry injection pipe 28 to cement injection (gray scale 1:1) shutoff in the butt joint of working disk 25 front end.
Step 5, dock sealed-for-life that is through and connection part
Until grouting cement soil compressive strength reach be greater than 1MPa after to take out cutterhead 11 and work system, deviation-rectifying system and the sludge drainage system of No. 1 push pipe head 1 with cutting equipment; Take out the working disk 25 of special head 2, working disk expansion device 26, correction oil cylinder 23, water filling filling system and sludge drainage system, with steel plate by No. 1 push pipe head 1 front tube and special head 2 leading portion inner tube wall welded seal, by connecting head 220 welded seal of the leading portion pipe 21 of special head 2 and back segment pipe 22, complete docking.
Claims (2)
1. for cross river in opposite directions push pipe docking construction special head, it is modified model water-flushing type driving head, special head (2) point leading portion pipe (21) and back segment pipe (22), the nearly rear end of leading portion pipe (21) is equipped with front pipe afterbody inner platform (212), the front end of back segment pipe (22) and nearly rear end are equipped with the anterior inner platform (221) of rear pipe and rear pipe afterbody inner platform (222) respectively, 4 ~ 8 corrections oil cylinder (23) are evenly equipped with between front pipe afterbody inner platform (212) and the anterior inner platform (221) of rear pipe, back segment pipe (22) front end is fixedly connected with connecting head (220), connecting head (220) has the extension stretched in leading portion pipe (21) rear end, leading portion pipe (21) and back segment pipe (22) are tightly connected by seal ring and connecting head (220), the rear pipe afterbody inner platform (222) of back segment pipe (22) makes jacking platform,
It is characterized in that: in the front end of leading portion pipe (21), establish a working disk cylinder (27) and working disk expansion device (26), working disk cylinder (27) front end is fixedly connected with working disk (25), working disk cylinder (27) rear end has working disk cylinder inner platform (271), working disk (25) away from working disk cylinder inner platform (271) side, there is floor (250), working disk cylinder (27) edge and leading portion pipe (21) inwall adopt working disk seal ring (270) to be tightly connected, working disk expansion device (26) is connected between working disk cylinder inner platform (271) and front pipe afterbody inner platform (212), working disk (25) can be made to move inward 1200 ~ 1500mm from the nearly mouth of pipe of leading portion pipe (21) by working disk expansion device (26) makes the front end of special head (2) become butt joint, working disk (25) bottom is provided with water intake (251) and mud discharging mouth (252), periphery has some working holes (253), working hole (253) adopts threaded cap (254) temporary plugging.
2. according to claim 1 for cross river in opposite directions push pipe docking construction special head, it is characterized in that: working disk expansion device (26) is for being distributed in 4 synchronous fuel tanks between working disk cylinder inner platform (271) and front pipe afterbody inner platform (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689333.XU CN204986007U (en) | 2015-09-08 | 2015-09-08 | A purpose -built aircraft nose for crossing river is push pipe butt joint construction in opposite directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689333.XU CN204986007U (en) | 2015-09-08 | 2015-09-08 | A purpose -built aircraft nose for crossing river is push pipe butt joint construction in opposite directions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986007U true CN204986007U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689333.XU Expired - Fee Related CN204986007U (en) | 2015-09-08 | 2015-09-08 | A purpose -built aircraft nose for crossing river is push pipe butt joint construction in opposite directions |
Country Status (1)
| Country | Link |
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| CN (1) | CN204986007U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114698A (en) * | 2015-09-08 | 2015-12-02 | 广东省建筑工程集团有限公司 | River opposite jacking butt joint construction process and specially-produced head |
-
2015
- 2015-09-08 CN CN201520689333.XU patent/CN204986007U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114698A (en) * | 2015-09-08 | 2015-12-02 | 广东省建筑工程集团有限公司 | River opposite jacking butt joint construction process and specially-produced head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180908 |