CN1624248A - Steep slope large diameter long glant wall conerete lining sliding mould construction technology - Google Patents
Steep slope large diameter long glant wall conerete lining sliding mould construction technology Download PDFInfo
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- CN1624248A CN1624248A CNA2004100112107A CN200410011210A CN1624248A CN 1624248 A CN1624248 A CN 1624248A CN A2004100112107 A CNA2004100112107 A CN A2004100112107A CN 200410011210 A CN200410011210 A CN 200410011210A CN 1624248 A CN1624248 A CN 1624248A
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- inclined shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
This invention relates to a technique of steep dip, big diameter, and rhomboidal concrete lining synovial membrane construction. One end of the steel stranded wire is anchored on the bend top rock by drill hole and injection, with the depth of 10m; the other end is connected with the continuous stretching hydraulic jack. In the construction process, when the mold is filled with concrete, it can lifted by the pulling system, the height being controlled below 40cm, and the strength of the concrete being controlled between 0.3-0.5 MPa. Its advantages are reliable structure, proper stress, stable operation, and low cost.
Description
Technical field
The present invention relates to a kind of concrete lining slding form operation new technology, particularly relate to the long inclined shaft concrete lining of a kind of steep dip major diameter slding form operation new technology, is a kind of novel construction technology.
Background technology
Steep dip major diameter inclined shaft is the distinctive building of underground run-of-river power station, the project that its construction of concrete lining is a technical sophistication, difficulty of construction is big.
60 ° at Bai Shanshui power station 2#, 3# diversion inclined shaft inclination angle, diameter 7.5m, length is respectively 33m and 52m, and concrete lining adopts hoist engine traction die body to carry out slding form operation (1981), obtains Ministry of Water Resources and Power Industry's scientific and technological progress first prize.This sliding mode system can be described as first generation inclined shaft sliding system.Its weak point: Construction Arrangement complexity; Hoist engine tractive force is less, and many wheel assembly pulleys must be set, and uses a large amount of wire rope, but hoist engine appearance rope amount is limited, therefore is not suitable for long slope construction.
Since the later stage 1980s, China begins to build pumped storage power plant, and its head is generally up to hundreds of rice, and correspondingly diversion inclined shaft length also reaches hundreds of rice, the long slope construction that first generation inclined shaft sliding system is incompatible such.The Guangzhou pumped storage power plant diversion inclined shaft of construction before and after nineteen ninety, 50 ° at inclination angle, diameter 8.5m, length 347m, the discontinuous sliding mode system of external CSN company development, each sliding 12.5m that rises are adopted in concrete lining.This sliding mode system can be described as second generation inclined shaft sliding system.Its weak point: can not slide liter continuously; Complex structure, troublesome poeration, efficient is lower.
Waste level ground, the sky pumped storage power plant inclined shaft of twentieth century end construction, 58 ° at inclination angle, diameter 7m, length 713m, the hydraulic pressure that the concrete lining employing is climbed along track climb pincers traction die body, sliding continuously liter.This sliding mode system can be described as third generation inclined shaft sliding system, obtains national science and technology progress second prize in 2000.Its weak point: the die body eccentric force, faults such as die body deflection, come-up and track deformation take place in the process easily sliding the liter, have to often stop slide handling failure.
Summary of the invention
The object of the present invention is to provide the long inclined shaft concrete lining of a kind of steep dip major diameter slding form operation new technology, solve the long inclined shaft sliding die body of the steep dip major diameter eccentric force once adopted, easily the problem of faults such as die body deflection, come-up and track deformation take place.Inclined shaft sliding system architecture of the present invention is reliable, and is stressed reasonable, stable, the sliding continuously fault-free that rises; Save cost; Reduction of erection time.
Technical scheme of the present invention is achieved in that on the long inclined shaft concrete lining of steep dip major diameter sliding formwork die body installs hydraulic lifting system, and this system is made up of two continuously elongated formula hydraulic jack, hydraulic power unit, console, safety clamper etc.; Hydraulic power unit is connected with jack by high-pressure oil pipe; Carry out work by consing hydraulic power unit and jack; Hydraulic power unit is provided with shutoff valve, can control exerting oneself of jack, prevents overload; Be anchored at two of upper bend section crown by two continuously elongated formula hydraulic jack withdrawings and restraint steel strand, the traction die body is sliding to be risen.Die body is subjected to force direction parallel with the inclined shaft axis.The specified pulling force of hydraulic jack is 1000kN.Steel strand are 1 * 7 standard type, nominal diameter 15.2mm, and intensity rank 1860Mpa, every bundle steel strand are 9.The steel strand fixed end is anchored in the upper bend section crown country rock anchorage depth 10m by boring, slip casting.Concrete construction sequence is as follows:
1, sliding mode system is formal install before, must carry out die body and assemble in advance, check each spot size, do not meet designing requirement, handle by designing requirement;
2, hydraulic jack is tested and calibration, verified its driving power, set up oil pressure and exert oneself relation curve;
3, the supporting capacity of steel strand is tested; At upper bend section crown anchoring steel strand;
4, by design attitude the track of making die body guiding usefulness is installed on the inclined shaft base plate, its installation accuracy is by the template installation accuracy control;
5, each parts of die body are drawn to the sliding position of inclined shaft concrete from lower horizontal section by hoist engine and assemble;
6, after the die body assembling is finished, trailer system is installed, every steel strand carry out pretension with single rope jack, make each root steel strand stressed evenly;
7, motif position, size be after measurement and acceptance, mouth template under the Zhi Limo body, and assembling reinforcement gets final product concreting; When concreting highly reaches about 40cm, and the time of building surpass the concrete initial set time, it is just sliding to carry out die body, the sliding liter about 5cm cemented by concrete to prevent die body; Whenever build the 40cm height later on, promptly sliding the liter about 5cm after die body waters full concrete, enters normal sliding the liter, promptly each sliding liter about 40cm, and concrete depanning strength control is at 0.3～0.5MPa.
Good effect of the present invention:
(1) reliable in structure, stressed reasonable, stable, the sliding continuously fault-free that rises;
(2) save cost.
The track of second generation inclined shaft sliding system is the supporting mass of climbing pincers, so track must be lifted near the lining concrete surface, and track foundation occupies that the lining cutting section is big (to be about 0.1m by design excavated section area
2).And the track of this inclined shaft sliding system only play the guiding role, so track can reduce as far as possible, and track foundation utilizes the part of backbreaking as far as possible, and occupying the lining cutting section, less (by design excavated section area is 0.088m
2).The track strip foundation is to be formed by pneumatically placed concrete, and difficulty of construction is big, both time-consuming, effort, and cost (spray C25 concrete unit price is 474.17 yuan/m than inclined shaft lining concrete height
3, and inclined shaft lining concrete unit price is 353.76 yuan/m
3).Therefore the track strip foundation of this inclined shaft sliding system can be saved cost 12%.
It is unreliable that second generation inclined shaft sliding system haulage gear is exerted oneself, and in order to guarantee safety, arranged that two 10t hoist engines shield.And this inclined shaft sliding system adopts jack traction steel strand, and safety factor has reached 5 times, and is safe and reliable, needn't arrange two hoist engines that shield again, saved resource.
(3) reduction of erection time.
The section of Tongbai inclined shaft is 1.65 times of day waste plateau slope well, and with this understanding, the progress situation that this inclined shaft sliding system and third generation inclined shaft sliding system realize is as follows:
The average sliding speed that this inclined shaft sliding system arrives in Tongbai inclined shaft construction of concrete lining is 4.52m/d, and the per day side of building amount is 91.8m
3/ d, and do not stop sliding in the whole sliding process that rises; The average sliding speed that third generation inclined shaft sliding system reaches in sky waste plateau slope well construction of concrete lining is 3.74m, and the per day side of building amount is 44.1m
3, repeatedly stop in the process to slide handling failure sliding the liter.
This inclined shaft sliding system is because simple in structure, install and debugging convenient, so sliding formwork time shorten greatly: day waste level ground---track foundation and track installation rate average every day of 2.9m, the die body installation and debugging have been used 90 days; Tongbai---track foundation and track installation rate average every day of 7.28m, the die body installation and debugging have been used 55 days.
Description of drawings:
Fig. 1 is applied to day power station, a waste level ground slope construction schematic diagram for third generation inclined shaft sliding;
Fig. 2 position job practices schematic diagram of the present invention;
The specific embodiment
The present invention will be further described below in conjunction with embodiment;
Embodiment 1
Tongbai Pumped-storage Power Station 1# inclined shaft, 50 ° at inclination angle, diameter 9m, length 364m is the long inclined shaft of state's interior diameter maximum.Its concrete construction sequence is as follows:
1, sliding mode system is formal install before, must carry out die body and assemble in advance, check each spot size, do not meet designing requirement, handle by designing requirement;
2, hydraulic jack is tested and calibration, verified its driving power, set up oil pressure and exert oneself relation curve;
3, the supporting capacity of steel strand is tested; At upper bend section crown anchoring steel strand;
4, by design attitude the track of making die body guiding usefulness is installed on the inclined shaft base plate, its installation accuracy is by the template installation accuracy control;
5, each parts of die body are drawn to the sliding position of inclined shaft concrete from lower horizontal section by hoist engine and assemble;
6, after the die body assembling is finished, trailer system is installed, every steel strand carry out pretension with single rope jack, make each root steel strand stressed evenly;
7, motif position, size be after measurement and acceptance, mouth template under the Zhi Limo body, and assembling reinforcement gets final product concreting; When concreting highly reaches about 40cm, and the time of building surpass the concrete initial set time, it is just sliding to carry out die body, the sliding liter about 5cm cemented by concrete to prevent die body; Whenever build the 40cm height later on, promptly sliding the liter about 5cm after die body waters full concrete, enters normal sliding the liter, promptly each sliding liter about 40cm, and concrete depanning strength control is at 0.3～0.5MPa.
Carry out concrete lining in June, 2004～August, adopts continuously elongated formula hydraulic jack withdrawing steel strand traction die body to slide liter, reliable in structure; stressed reasonable, stable, the sliding continuously fault-free that rises; from 78 days processes that slide into the slding form operation end, never stop sliding.
Claims (2)
1, the long inclined shaft concrete lining of steep dip major diameter slding form operation new technology, it is characterized in that: on the long inclined shaft concrete lining of steep dip major diameter sliding formwork die body hydraulic lifting system is installed, this system is made up of two continuously elongated formula hydraulic jack, hydraulic power unit, console, safety clamper etc.; Hydraulic power unit is connected with jack by high-pressure oil pipe; Carry out work by consing hydraulic power unit and jack; Hydraulic power unit is provided with shutoff valve, can control exerting oneself of jack, prevents overload; Be anchored at two of upper bend section crown by two continuously elongated formula hydraulic jack withdrawings and restraint steel strand, the traction die body is sliding to be risen, and die body is subjected to force direction parallel with the inclined shaft axis; The steel strand fixed end is anchored in the upper bend section crown country rock by boring, slip casting.
2, the long inclined shaft concrete lining of steep dip major diameter slding form operation new technology, it is characterized in that: concrete construction sequence is as follows:
(1), sliding mode system is formal install before, must carry out die body and assemble in advance, check each spot size, do not meet designing requirement, handle by designing requirement;
(2), hydraulic jack is tested and calibration, verify its driving power, set up oil pressure and exert oneself relation curve;
(3), the supporting capacity of steel strand is tested; At upper bend section crown anchoring steel strand;
(4), on the inclined shaft base plate, the track make die body guiding usefulness is installed, its installation accuracy is by the template installation accuracy control by design attitude;
(5), each parts of die body are drawn to the sliding position of inclined shaft concrete from lower horizontal section by hoist engine and assemble;
(6), after die body assembling finishes, trailer system is installed, every steel strand carry out pretension with single rope jack, make each root steel strand stressed even;
(7), motif position, size after measurement and acceptance, mouth template under the Zhi Limo body, assembling reinforcement gets final product concreting; When concreting highly reaches about 40cm, and the time of building surpass the concrete initial set time, it is just sliding to carry out die body, the sliding liter about 5cm cemented by concrete to prevent die body; Whenever build the 40cm height later on, promptly sliding the liter about 5cm after die body waters full concrete, enters normal sliding the liter, promptly each sliding liter about 40cm, and concrete depanning strength control is at 0.3～0.5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100112107A CN1261672C (en) | 2004-11-10 | 2004-11-10 | Steep slope large diameter long glant wall conerete lining sliding mould construction technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100112107A CN1261672C (en) | 2004-11-10 | 2004-11-10 | Steep slope large diameter long glant wall conerete lining sliding mould construction technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1624248A true CN1624248A (en) | 2005-06-08 |
| CN1261672C CN1261672C (en) | 2006-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100112107A Expired - Fee Related CN1261672C (en) | 2004-11-10 | 2004-11-10 | Steep slope large diameter long glant wall conerete lining sliding mould construction technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352758A (en) * | 2011-09-22 | 2012-02-15 | 河北省第四建筑工程公司 | Construction method for automobile adit and slant chute |
| CN102926767A (en) * | 2012-11-14 | 2013-02-13 | 中国水电顾问集团华东勘测设计研究院 | Reinforcement treatment method of wide-angle inclined tunnel internally-sleeved steel liner location joint |
| CN103074871A (en) * | 2013-01-30 | 2013-05-01 | 中国葛洲坝集团股份有限公司 | Arc-shaped slope concrete sliding and lifting template |
| CN103510572A (en) * | 2012-06-29 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Construction method of water getting vertical shaft under complex geological condition |
| CN105421162A (en) * | 2015-12-10 | 2016-03-23 | 中国水利水电第十四工程局有限公司 | Construction method for inclined shaft running rail |
| CN105673019A (en) * | 2016-01-19 | 2016-06-15 | 中国水利水电第五工程局有限公司 | Concrete slip form construction method for upper portion of lower bent segment of vertical shaft |
| CN112112657A (en) * | 2020-09-25 | 2020-12-22 | 中煤第三建设（集团）有限责任公司 | New construction method for digging and building inclined shaft of coal mine |
| CN115182753A (en) * | 2022-07-29 | 2022-10-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
-
2004
- 2004-11-10 CN CNB2004100112107A patent/CN1261672C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352758A (en) * | 2011-09-22 | 2012-02-15 | 河北省第四建筑工程公司 | Construction method for automobile adit and slant chute |
| CN103510572A (en) * | 2012-06-29 | 2014-01-15 | 中国有色金属工业第六冶金建设有限公司 | Construction method of water getting vertical shaft under complex geological condition |
| CN102926767A (en) * | 2012-11-14 | 2013-02-13 | 中国水电顾问集团华东勘测设计研究院 | Reinforcement treatment method of wide-angle inclined tunnel internally-sleeved steel liner location joint |
| CN102926767B (en) * | 2012-11-14 | 2014-11-12 | 中国水电顾问集团华东勘测设计研究院 | Reinforcement treatment method of wide-angle inclined tunnel internally-sleeved steel liner location joint |
| CN103074871A (en) * | 2013-01-30 | 2013-05-01 | 中国葛洲坝集团股份有限公司 | Arc-shaped slope concrete sliding and lifting template |
| CN105421162A (en) * | 2015-12-10 | 2016-03-23 | 中国水利水电第十四工程局有限公司 | Construction method for inclined shaft running rail |
| CN105673019A (en) * | 2016-01-19 | 2016-06-15 | 中国水利水电第五工程局有限公司 | Concrete slip form construction method for upper portion of lower bent segment of vertical shaft |
| CN105673019B (en) * | 2016-01-19 | 2018-01-26 | 中国水利水电第五工程局有限公司 | A kind of vertical shaft lower horizontal section top concrete slip-form construction method |
| CN112112657A (en) * | 2020-09-25 | 2020-12-22 | 中煤第三建设（集团）有限责任公司 | New construction method for digging and building inclined shaft of coal mine |
| CN112112657B (en) * | 2020-09-25 | 2022-04-19 | 中煤第三建设（集团）有限责任公司 | New construction method for digging and building inclined shaft of coal mine |
| CN115182753A (en) * | 2022-07-29 | 2022-10-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
| CN115182753B (en) * | 2022-07-29 | 2023-02-14 | 中国水利水电第三工程局有限公司 | Inclined shaft S-shaped full-section lining template system and lining construction method |
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| Publication number | Publication date |
|---|---|
| CN1261672C (en) | 2006-06-28 |
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