CN202970719U - Relay chamber-free jacking construction device for ultra-long pipe roof - Google Patents
Relay chamber-free jacking construction device for ultra-long pipe roof Download PDFInfo
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- CN202970719U CN202970719U CN 201220394367 CN201220394367U CN202970719U CN 202970719 U CN202970719 U CN 202970719U CN 201220394367 CN201220394367 CN 201220394367 CN 201220394367 U CN201220394367 U CN 201220394367U CN 202970719 U CN202970719 U CN 202970719U
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Abstract
The utility model discloses a relay chamber-free jacking construction device for an ultra-long pipe roof. The relay chamber-free jacking construction device comprises a portal pressure-maintaining device and a pipe-roof steel pipe, wherein a sealing mechanism comprises a soil body, as well as a jet grouting pile and a grouting pipe that are arranged outside the soil body; a steel casing is arranged in the jet grouting pile that is used as a water sealing wall; a sealing rubber ring and a steel plate ring are sequentially arranged outside the steel casing; a blind plate connected with the grouting pipe is arranged outside the steel plate ring; the pipe-roof steel pipe is provided with a lubricant grouting hole and a grouting connection and control device for reducing the jacking resistance; and meanwhile, 0.1-0.5 mpa of pressure is formed in 35 mm of gaps between a soil hole and the periphery of the pipe to resist the deformation of the soil hole and control the sedimentation of the upper surface. The relay chamber-free jacking construction device for the ultra-long pipe roof has the beneficial effects that the adverse factors caused by a relay chamber are eliminated on the basis of implementing a relay chamber-free jacking method, the jacking construction difficulty of the ultra-long pipe roof is solved, the jacking force required in the construction is small, the construction precision is high, and the sedimentation degree is low.
Description
Technical field
The utility model relates to constructing tunnel and pipe curtain supporting field, relates in particular to non-relay jacking construction device of a kind of ultra-long tube curtain.
Background technology
Present general pipe curtain engineering method in constructing tunnel is a kind of of non-excavation technique, build the job practices of the large section underground space as utilizing small-bore push-bench, the development course of external existing 20 years, be applied to pass through road in Japan, the U.S., Singapore and China etc. the open excavation of the belows such as railway, works, airport, all obtain good effect, accumulated certain construction experience.The method is applicable to the multiple stratum such as backfill, sand, clay, rock stratum.
A pipe curtain engineering method is take the single tube jacking as the basis, relies on fore shaft to join in the steel pipe side between each single tube and forms pipe row, and inject water-stop to reach the sealing requirement in the fore shaft space.After pipe row jacking is completed, form the pipe curtain.Then the soil body in the pipe curtain is carried out consolidation process, subsequently in the limit support of internal edges excavation, until the perforation of pipe curtain section excavation, then the pouring structure body.Pipe curtain can be various shapes, comprises semi-circular, round, door type, hollow etc.The pipe curtain forms interim booth structure by the steel pipe of rigidity, to the disturbance of the contiguous soil body and the distortion of corresponding minimizing surrounding soil, does not affect land operations when reaching excavation, and keeps the purpose of top building and pipeline normal usage function when reducing excavation.When tackling simultaneously the construction of ultra-long tube curtain, the general increase relay well relay jacking mode that adopts is completed each single tube length apart from jacking construction, and this mode brings certain successful for a long distance pipe act construction, but risk is higher, the main existence with the next problem and shortcoming:
1, relay well easily damages at the frequent jack-in process that shrinks, and causes to be short of power the normally jacking of pipe curtain, push pipe failure.
2, because of the frequent contraction of relay well, relay well self closed system easily destroys, and causes pipe outer wall anti-drag mud seepage and decompression, may cause pipe curtain resistance to increase and the holding tube phenomenon.
3, fail fundamentally to solve top power problem, it is large that the jacking direction is controlled difficulty, and the jacking accuracy error is large.
4, the large and relay well spillage decompression of jacking deviation all can cause soil body sedimentation large, can not satisfy the construction at high standard settlement Control position.
5, the relay well expense is high, and construction cost increases.
The utility model content
A kind of purpose of the present utility model is to provide non-relay jacking construction device of a kind of ultra-long tube curtain, the above deficiency that exists to overcome existing method.
The purpose of this utility model scheme by the following method realizes:
Non-relay jacking construction device of a kind of ultra-long tube curtain, comprise portal pressurizer and pipe curtain steel pipe, described portal pressurizer place is provided with sealing mechanism, described pipe curtain steel pipe end is provided with resilience-proof device, described resilience-proof device comprises top pick and is located at the distribution beam of pick rear end, top, the distribution beam rear end is provided with interconnective rear back beam and back stake, and described top pick is connected by gad with distribution beam; Described sealing mechanism comprises the soil body, is located at rotary churning pile and the Grouting Pipe in the soil body outside, rotary churning pile is as the hermetic seal wall, be provided with the steel casing in rotary churning pile, steel casing outer end is provided with O-ring seal and steel plate ring successively, the steel plate ring outside is provided with the blind plate that is connected with Grouting Pipe, and described Grouting Pipe is provided with pressure meter and control valve, establishes lubricated injected hole and slip casting connection and control device at pipe curtain steel pipe, reduce the jacking resistance, improve control accuracy.
Non-relay jacking construction method of a kind of ultra-long tube curtain, it comprises the following steps:
1) according to " code for construction and acceptance of water supply and sewerage pipeline engineering GB50268-2008 " and the actual conditions computer tube curtain steel pipe required top power of bearing in use of constructing, and choose main top oil cylinder, rear back beam and back stake according to the numerical value of top power and the strength condition of top pick, and biological mud and water are mixed, make anti-drag mud;
2) increase the C30 concrete wall for grouting of 500mm thickness at the soil body of portal pressurizer, wall for grouting is the reserved opening of 1080mm at pipe curtain steel pipe outlet position reservation diameter, and at this reserved opening place's installation steel casing, O-ring seal and steel plate ring, lay the thick concrete cushion of 20cm in the bottom, with attachment rail on concrete cushion, and set up resilience-proof device in track end, described resilience-proof device comprises top pick and is located at the distribution beam of pick rear end, top, the distribution beam rear end is provided with interconnective rear back beam and back stake, described top pick is propped up pad with distribution beam mutually by gad,
3) each tube coupling that will manage the curtain steel pipe hangs and goes into the well, and will be rear a pipe joint section header section be connected with last joint afterbody, during splicing, misalignment should be greater than 2mm, and the space of 2～4mm should be arranged between the tube coupling of front and back, is beneficial to firm welding, the assurance steel pipe seam is airtight effective, not spillage; And
4) form the 35mm gap during jacking outside pipe curtain steel pipe, by the lubricated slurry of pressurize drag-reduction system device filling drag reduction in the gap, realize drag-reduction effect.Pressurize drag-reduction system slip casting supervisor is with adjustable pressure voltage stabilizing slip casting, and the pressure limit value is 0.1 to 0.5mpa, and controlling value is 0.1mpa.Slurries are starched hole ascending pipe curtain pipe periphery by drag reduction, and injected hole is installed one way valve, improve when slip casting pressurize efficient reaches design pressure and stop annotating.
Further, in jack-in process, the outer anti-drag mud pressure of pipe curtain steel pipe is carried out Real-Time Monitoring, and mend in real time slurry for pressure change and process, remain that pipe outer ring-like gap anti-drag mud pressure reaches design pre-control value.
Further, one way valve and section door are set on each injected hole, to improve safety factor, prevent that the outside water and soil from entering in pipe.
Further, prominent when meeting loose soft layer in jack-in process, mix slurry by the jacking storehouse to the soft layer pressure injection soil body is reinforced and sealed, and began slow jacking in 0.5～1 hour before the slurries initial set.
The beneficial effects of the utility model are: eliminated the unfavorable factor of using the relay well structure to bring, solved the problem of ultra-long tube curtain jacking construction difficulty, raise the efficiency, quality, precision, reducing draft reduction material uses, it is convenient to operate and control, and needed top power is little, construction precision is high in construction, the sedimentation degree is little.
Description of drawings
The below is described in further detail the utility model with reference to the accompanying drawings.
Fig. 1 is the structural representation of non-relay the jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model;
Fig. 2 is the structural representation of portal pressurizer of non-relay the jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model;
Fig. 3 is the structural representation of resilience-proof device of non-relay the jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model;
Fig. 4 is the structural representation of non-relay the jacking construction device of a kind of ultra-long tube curtain of another embodiment of the present utility model;
Fig. 5 is the structural representation sectional view of portal pressurizer of non-relay the jacking construction device of a kind of ultra-long tube curtain of another embodiment of the present utility model;
Fig. 6 is the structural representation sectional view of pressurize sealing device of portal pressurizer of non-relay the jacking construction device of a kind of ultra-long tube curtain of Fig. 5;
Fig. 7 is the structural representation of steel pipe grouting device of non-relay the jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model.
In figure:
1, portal pressurizer; 11, the soil body; 12, rotary churning pile; 13, seepproof screen; 14, steel casing; 15, O-ring seal; 16, steel plate ring; 17, blind plate; 18, Grouting Pipe; 2, concrete cushion; 3, pipe curtain steel pipe; 31, steel pipe seam; 32, supporting steel pipe; 33, support triangle steel; 4, resilience-proof device; 41, top pick; 42, distribution beam; 43, rear back beam; 44, back stake; 45, gad; 46, advance the spoil disposal water pipe.
The specific embodiment
As Figure 1-3, non-relay jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model, comprise portal pressurizer 1 and pipe curtain steel pipe 3, described portal pressurizer 1 place is provided with sealing mechanism, described pipe curtain steel pipe 3 ends are provided with resilience-proof device 4, described resilience-proof device 4 comprises top pick 41 and is located at the distribution beam 42 of pick 41 rear ends, top, distribution beam 42 rear ends are provided with interconnective rear back beam 43 and back stake 44, described top pick 41 is connected by gad 45 with distribution beam 42, back stake 44 be provided with pass to pipe curtain steel pipe 3 outsides advance the spoil disposal water pipe; Described sealing mechanism comprises the soil body 11, is located at rotary churning pile 12 and the Grouting Pipe 18 in the soil body outside, rotary churning pile 12 tops are provided with seepproof screen 13, be provided with steel casing 14 in rotary churning pile 12, steel casing 14 outer ends are provided with O-ring seal 15 and steel plate ring 16 successively, steel plate ring 16 outsides are provided with the blind plate 17 that is connected with Grouting Pipe 18, and described Grouting Pipe 18 is provided with pressure meter and control valve, establish lubricated injected hole and slip casting connection and control device at pipe curtain steel pipe, reduce the jacking resistance, improve control accuracy.
Non-relay jacking construction method of a kind of ultra-long tube curtain of embodiment of the present utility model, it comprises the following steps:
1) according to " code for construction and acceptance of water supply and sewerage pipeline engineering GB50268-2008 " and the actual conditions computer tube curtain steel pipe required top power of bearing in use of constructing, and choose main top oil cylinder, rear back beam and back stake according to the numerical value of top power and the strength condition of top pick, and biological mud and water are mixed, make anti-drag mud;
2) increase the C30 concrete wall for grouting of 500mm thickness at the soil body of portal pressurizer, wall for grouting is the reserved opening of 1080mm at pipe curtain steel pipe outlet position reservation diameter, and at this reserved opening place's installation steel casing, sealing pressurize cushion rubber and steel plate ring, lay the thick concrete cushion of 20cm in the bottom, with attachment rail on concrete cushion, and set up resilience-proof device in track end, described resilience-proof device comprises top pick and is located at the distribution beam of pick rear end, top, the distribution beam rear end is provided with interconnective rear back beam and back stake, described top pick is propped up pad with distribution beam mutually by gad,
3) each tube coupling that will manage the curtain steel pipe hangs and goes into the well, and will be rear a pipe joint section header section be connected with last joint afterbody, during splicing, misalignment should be greater than 2mm, and the space of 2～4mm should be arranged between the tube coupling of front and back, is beneficial to firm welding, the assurance steel pipe seam is airtight effective, not spillage; And
4) form the 35mm gap during jacking outside pipe curtain steel pipe, by the lubricated slurry of pressurize drag-reduction system device filling drag reduction in the gap, realize drag-reduction effect.Pressurize drag-reduction system slip casting supervisor is with adjustable pressure voltage stabilizing slip casting, and the pressure limit value is 0.1 to 0.5mpa, and controlling value is 0.1mpa.Slurries are starched hole ascending pipe curtain pipe periphery by drag reduction, and injected hole is installed one way valve, improve when slip casting pressurize efficient reaches design pressure and stop annotating.In jack-in process, the outer anti-drag mud pressure of pipe curtain steel pipe is carried out Real-Time Monitoring, and mend in real time slurry for pressure change and process, remain that pipe outer ring-like gap anti-drag mud pressure reaches design load.
Simultaneously, one way valve and section door are set on each injected hole, to improve safety factor, prevent that the outside water and soil from entering in pipe.
Prominent when meeting loose soft layer in jack-in process, mix slurry by the jacking storehouse to the soft layer pressure injection soil body is reinforced and sealed, and began slow jacking in 0.5～1 hour before the slurries initial set.
Fig. 4 is non-relay jacking construction device of a kind of ultra-long tube curtain of another embodiment of the present utility model, and its resilience-proof device uses jack, is connected by transition conduit between pipe curtain steel pipe and head.
Fig. 5 is the portal pressurizer of simplification of non-relay the jacking construction device of a kind of ultra-long tube curtain of another embodiment of the present utility model.
Fig. 6 is the pressurize sealing device of the portal pressurizer of non-relay the jacking construction device of a kind of ultra-long tube curtain in Fig. 5, and the structure of its cattle horn shape has further been optimized the effect of pressurize sealing, makes that whole hermetically-sealed construction is more tight and effect is more outstanding.
Non-relay jacking construction device of ultra-long tube curtain as shown in Fig. 4-6, its structure is more simple, uses more conveniently, and effect also can guarantee basic requirement.
Fig. 7 is the structural representation of steel pipe grouting device of non-relay the jacking construction device of a kind of ultra-long tube curtain of embodiment of the present utility model.
The utility model is by the improvement to jacking mechanism structure and construction technology, on the basis of carrying out non-relay jacking method, eliminated the unfavorable factor of using the relay well structure to bring, solved the problem of ultra-long tube curtain jacking construction difficulty, raise the efficiency, quality, precision, reduce draft reduction material and use, it is convenient to operate and control, and needed top power is little in construction, construction precision is high, the sedimentation degree is little.
Although below only described specific embodiment example of the present utility model, the method personnel of this area should be appreciated that these only illustrate, and protection domain of the present utility model is limited by appended claims.The method personnel of this area can make various changes or modifications to these embodiments under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes or modification all fall into protection domain of the present utility model.
Claims (3)
1. non-relay jacking construction device of a ultra-long tube curtain, comprise portal pressurizer (1) and pipe curtain steel pipe (3), it is characterized in that, described portal pressurizer (1) comprises sealing mechanism, described sealing mechanism comprises the soil body (11), be located at rotary churning pile (12) and the Grouting Pipe (18) in the soil body (11) outside, rotary churning pile (12) is as seepproof screen (13), be provided with steel casing (14) in rotary churning pile (12), steel casing (14) outer end is provided with O-ring seal (15) and steel plate ring (16) successively, steel plate ring (16) outside is provided with the blind plate (17) that is connected with Grouting Pipe (18), described pipe curtain steel pipe (3) end is provided with resilience-proof device (4).
2. non-relay jacking construction device of a kind of ultra-long tube curtain according to claim 1 is characterized in that: described pipe curtain steel pipe (3) is provided with lubricated injected hole and slip casting connection and control device.
3. non-relay jacking construction device of a kind of ultra-long tube curtain according to claim 1 and 2, it is characterized in that, described resilience-proof device (4) comprises top pick (41) and is located at the distribution beam (42) of pick (41) rear end, top, distribution beam (42) rear end is provided with interconnective rear back beam (43) and back stake (44), and described top pick (41) is connected by gad (45) with distribution beam (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394367 CN202970719U (en) | 2012-08-09 | 2012-08-09 | Relay chamber-free jacking construction device for ultra-long pipe roof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220394367 CN202970719U (en) | 2012-08-09 | 2012-08-09 | Relay chamber-free jacking construction device for ultra-long pipe roof |
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| CN 201220394367 Expired - Fee Related CN202970719U (en) | 2012-08-09 | 2012-08-09 | Relay chamber-free jacking construction device for ultra-long pipe roof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777189A (en) * | 2012-08-09 | 2012-11-14 | 中铁十六局集团北京工程有限公司 | Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |
| CN104265326A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Method for controlling soil deformation in large rectangular pipe jacking |
| CN104265318A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Large-cross-section rectangular jacking pipe tunneling soil body improving method |
| CN104594909A (en) * | 2014-12-19 | 2015-05-06 | 中建六局土木工程有限公司 | Installation construction method for back device of super-long pipe curtain |
| 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 |
| CN104343455B (en) * | 2013-08-05 | 2017-04-12 | 中铁十八局集团有限公司 | Long-distance curved jacking pipe and pipe roof construction technique |
-
2012
- 2012-08-09 CN CN 201220394367 patent/CN202970719U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777189A (en) * | 2012-08-09 | 2012-11-14 | 中铁十六局集团北京工程有限公司 | Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |
| CN102777189B (en) * | 2012-08-09 | 2015-09-16 | 中铁城建集团北京工程有限公司 | A kind of ultra-long tube curtain non-relay jacking construction device and method |
| CN104343455B (en) * | 2013-08-05 | 2017-04-12 | 中铁十八局集团有限公司 | Long-distance curved jacking pipe and pipe roof construction technique |
| CN104265326A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Method for controlling soil deformation in large rectangular pipe jacking |
| CN104265318A (en) * | 2014-08-06 | 2015-01-07 | 上海隧道工程有限公司 | Large-cross-section rectangular jacking pipe tunneling soil body improving method |
| CN104265326B (en) * | 2014-08-06 | 2016-04-27 | 上海隧道工程有限公司 | A kind of method controlling large-scale rectangular push pipe driving soil deformation |
| CN104265318B (en) * | 2014-08-06 | 2016-10-19 | 上海隧道工程有限公司 | Big cross section rectangular top pipe driving soil improvement method |
| CN104594909A (en) * | 2014-12-19 | 2015-05-06 | 中建六局土木工程有限公司 | Installation construction method for back device of super-long pipe curtain |
| CN104594909B (en) * | 2014-12-19 | 2016-10-19 | 中建六局土木工程有限公司 | A kind of construction method of installation of the back device of ultra-long tube curtain |
| 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 |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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Owner name: CHINA RAILWAY CONSTRUCTION ENGINEERING BUREAU NO.1 Effective date: 20150417 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING ENGINEERING COMPANY LIMITED OF CHINA RAILW Free format text: FORMER NAME: CHINA RAIWAY 16TH BUREAU GROUP BEIJING ENGINEERING CO., LTD. |
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Address after: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8 Patentee after: China Railway Urban Construction Group Beijing Engineering Co.,Ltd. Address before: 100018 sixteen China Railway Bureau Group Co., Ltd., 2 North Korean pine garden, Beijing, Chaoyang District Patentee before: CHINA RAILWAY 16TH BUREAU GROUP BEIJING ENGINEERING Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150417 Address after: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8 Patentee after: China Railway Urban Construction Group Beijing Engineering Co.,Ltd. Patentee after: CHINA RAILWAY 16TH BUREAU GROUP Co.,Ltd. Patentee after: CHINA RAILWAY URBAN CONSTRUCTION GROUP Co.,Ltd. Address before: 100018, No. 2, building 2, North Court, North Korean pine garden, Beijing, Chaoyang District 8 Patentee before: China Railway Urban Construction Group Beijing Engineering Co.,Ltd. |
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| 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: 20130605 Termination date: 20190809 |