CN102587332B - Construction method for underwater plugging of gate groove of hydraulic structure with no gate guide - Google Patents
Construction method for underwater plugging of gate groove of hydraulic structure with no gate guide Download PDFInfo
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- CN102587332B CN102587332B CN201210083993.4A CN201210083993A CN102587332B CN 102587332 B CN102587332 B CN 102587332B CN 201210083993 A CN201210083993 A CN 201210083993A CN 102587332 B CN102587332 B CN 102587332B
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Abstract
A construction method for underwater plugging of a gate groove of a hydraulic structure with no gate guide includes the steps: firstly, mounting one or a plurality of cavity concrete stop logs on a no-gate-guide section in the gate grove; secondly, mounting an underground form; thirdly, pouring concrete underwater; fourthly, mounting a gate sill on the topmost cavity concrete stop log; and fifthly, mounting a steel stop log gate in sealed fit with the gate sill, and finish the construction of underwater plugging. Under the condition that no gate guide is reserved in the seal gate groove of the hydraulic structure, the cavity concrete stop logs w hic are mounted are integrated with the seal gate groove by casting, underwater seal material is used to caulk a groove in a leaking passage at the construction joint between the old concrete and the newly cast concrete, and sealing and water-stopping of the gate groove with no guide are achieved. In addition, the portion with a guide of the gate groove is sealed by lowering the steel gate to stop water. A dry construction condition is achieved by combining the two ways.
Description
Technical field
The present invention relates to the gate plugging construction field in hydraulic structure, particularly a kind of hydraulic structure gate slot without gate guide plugging construction method under water.
Background technology
In certain dam heightening project, increasing of Overflow Section comprised to two parts content, gate pier is increased with spillwag chute and is increased.Due to the restriction of relocation of people from reservoir areas, first the construction of increasing at this position has carried out increasing of gate pier, and then carries out the construction of increasing of spillwag chute.When overflow weir is increased, concreting need to be constructed under anhydrous dry ground condition, because the construction of this project preparatory works is the construction of increasing of having considered the later stage, in the gate pier of Overflow Section, be reserved with shutoff gate slot, carry out plug water construction when facilitating the later stage to increase.The shutoff gate slot elevation of preparatory works, at ▽ 134m～▽ 162m, extends to ▽ 176.4m after gate pier is increased.According to the hydrological data on this ground, form dry work condition and need to carry out shutoff to the shutoff gate slot of ▽ 134m～▽ 157.4m scope.In the shutoff gate slot of preparatory works, gate guide is not installed, while increasing construction in the later stage, be subject to the restriction of reservoir level, only at ▽ 145, with upper part, increase newly steel gate guide has been installed, ▽ below 145 because of in setting up strobe track under water, and preparatory works last century six the seventies construct, be subject to the restriction of technical condition at that time, concreting adopts wooden form in bulk to construct, the build scale error of concreting is larger, according to the data of site inspection, show, more than the build dimensional errors in gate slot sideline reaches 10cm, therefore, in the shutoff gate slot of engineering, take in the early stage conventional steel gate directly to descend the mode of lock water blockoff to carry out shutoff to shutoff gate slot.For the plugging construction under this condition, in prior art, there is no referential technical scheme.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hydraulic structure gate slot without gate guide plugging construction method under water, can overcome the restriction of existing engineering specifications, in there is no the shutoff gate slot of strobe track, does not realize shutoff sealing.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of hydraulic structure gate slot without gate guide is plugging construction method under water, comprises the following steps:
One, in gate slot, without gate guide section, one or more pieces cavity concrete stoplogs are installed;
Two, template installation in position under water;
Three, underwater concreting;
Four, on the cavity concrete stoplog of the top a slice, gate sill is installed;
Five, the steel stop log gate that installation and gate sill are sealed and matched;
By above-mentioned steps, realize without the hydraulic structure gate slot of gate guide plugging construction under water.
Before cavity concrete stoplog is installed, the concrete surface of gate slot is cleared up.
Described cavity concrete stoplog cross section adopts horizontal " work " character form structure.
Cavity concrete stoplog is provided with a plurality of to mesopore.
When multi-disc cavity concrete stoplog is installed by being arranged on the location of the one or more centering guiding devices in mesopore being realized to multi-disc cavity concrete stoplog.
After installation form, also need larger gap between cavity concrete stoplog to stop up, prevent running pulp when building underwater concrete.
After installation form, conduit is inserted in the pouring hole of cavity concrete stoplog, conduit is inserted into the bottom of nethermost cavity concrete stoplog always.
The template of upstream face is removed in concreting for 3 days afterwards under water, the underwater concrete of newly building between cavity concrete stoplog and sideline, gate slot upstream is rejected to the groove that forms 5～8cm, adopt underwater sealing material to carry out pointing, stop up the leakage passage on New-old concrete mating face, gate slot position.
In the end under a slice cavity concrete stoplog before water or bank embedded part of the adjustable end is installed when this cavity concrete stoplog is positioned under water, bank embedded part of the adjustable end is arranged on cavity concrete stoplog top, with the gap that cavity concrete stoplog end face keeps 5-15cm, then in the gap between bank embedded part of the adjustable end and cavity concrete stoplog, build PBM concrete under water.
Described bank embedded part of the adjustable end adopts angle steel and template construct, and the both sides of bank embedded part, the adjustable end are connected with concrete by adjustable bolt, so that the leveling of gate sill.
Traditional shutoff sealing construction is all in gate slot, to exist under the condition of gate guide directly to adopt lock water blockoff under steel gate, forms dry ground of concrete construction condition below.
A kind of hydraulic structure gate slot without gate guide disclosed by the invention is plugging construction method under water, in the shutoff gate slot of hydraulic structure, do not have under the condition of gate guide, after taking cavity concrete stoplog to install, cavity in stoplog and stoplog are built to underwater concrete with the space between gate slot, cavity concrete stoplog and shutoff gate slot are built into an integral body, take again underwater sealing material to carry out raggle pointing to the leakage passage of New-old concrete mating face constuction joint, to not having the gate slot section of guide rail to reach the effect of leak stopping sealing, concrete stoplog top has the part of guide rail to take lock water blockoff under conventional steel gate, both combine and form the dry work condition of concreting.
By certain dam, increase facts have proved of engineering construction technology of the present invention and obtained good effect, met actual demands of engineering.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is general arrangement schematic of the present invention.
Fig. 2 is the partial enlarged drawing at A place in Fig. 1, is the schematic diagram of first phase cavity concrete stoplog construction in figure.
Fig. 3 is the partial enlarged drawing at A place in Fig. 1, is the schematic diagram of the second stage of cavity concrete stoplog construction in figure.
Fig. 4 is the partial enlarged drawing at A place in Fig. 1, is the schematic diagram of installing after steel stop log gate in figure.
Fig. 5 is the top view of cavity concrete stoplog of the present invention.
Fig. 6 is the main pseudosection of cavity concrete stoplog of the present invention.
Fig. 7 is the left pseudosection of cavity concrete stoplog of the present invention.
In figure: the axis of dam 1, preparatory works overflow weir sideline 2, overflow weir is increased rear sideline 3, trigonum underwater concrete 4, cavity concrete stoplog and the fill concrete 5 installed for the first time, cavity concrete stoplog and the fill concrete 6 installed for the second time, gate sill 7, steel stop log gate 8, centering guiding device 9, to mesopore 10, cavity concrete stoplog 11, grouting steel form 12.
The specific embodiment
It is ▽ 134m～▽ 145m that certain dam Overflow Section shutoff gate slot does not have the scope of strobe track, and 11m is high altogether, considers the restriction of site operation means, and the height of every cavity concrete stoplog 11 is 1m, totally 11 cavity concrete stoplogs 11.The hydrologic condition of this dam of considering, former overflow weir crest level is 138m, in order not affect accelerating construction progress under the body of wall that crosses flood flood season, cavity concrete stoplog 11 is constructed at twice, 4 cavity concrete stoplogs 11 are installed for the first time, fitting limit is at ▽ 134m～▽ 138m, comprises that shutoff gate slot builds underwater concrete to the trigonum between overflow weir crest simultaneously, and construction is that reservoir level is in ▽ 142 left and right; 7 cavity concrete stoplogs are installed for the second time after flood again, and fitting limit is at ▽ 138m～▽ 145m, and during installation, reservoir level is in ▽ 157 left and right.
Underwater cleaning.Because shutoff gate slot and gate slot gate sill 7 are for a long time in reservoir level variation zone, concrete surface has the attachments such as oyster, before cavity concrete stoplog 11 is installed, first needs concrete surface to clear up.Underwater cleaning is the attachment of concrete surface to be cleaned out by scraper plate and giant etc. by diver.
In Fig. 1-Fig. 4, a kind of hydraulic structure gate slot without gate guide is plugging construction method under water, comprises the following steps:
One, in gate slot, without gate guide section, one or more pieces cavity concrete stoplogs 11 are installed;
The installation of cavity concrete stoplog is to adopt hoist tower machine to lift, and by diver, monitors under water and remove lifting suspension ring.
In Fig. 5-Fig. 7, described cavity concrete stoplog 11 cross sections adopt horizontal " work " character form structure.Cavity concrete stoplog 11 is provided with a plurality of to mesopore 10.When multi-disc cavity concrete stoplog 11 is installed by being arranged on the location of the one or more centering guiding devices 9 in mesopore 10 being realized to multi-disc cavity concrete stoplog 11.When rear a slice cavity concrete stoplog 11 approaches front a slice cavity concrete stoplog 11 in water, by the automatic location and installation of centering guiding device 9 on two cavity concrete stoplogs 11, after every cavity concrete stoplog 11 installation in position, by diver, cavity concrete stoplog 11 installation in position situations are checked, confirm that errorless rear excision lifting suspension ring carry out the installation of lower a slice cavity concrete stoplog 11.Centering guiding device 9 in this example is and mesopore 10 is formed to the rod member coordinating.
Two, template installation in position under water;
Because the width of shutoff gate slot is 1.65m, the width of cavity concrete stoplog 11 is 1.45m, and cavity concrete stoplog 11 is arranged in gate slot that upstream and downstream is all gapped, and these gaps need to be filled with underwater concrete, with fixing cavity concrete stoplog 11.After the installation of cavity concrete stoplog, by diver, push the slip grouting steel form 12 that is arranged on cavity concrete stoplog 11 both sides to gate slot both sides, grouting steel form 12 be adjacent to fastening bolt is tightened behind the pier concrete surface of gate slot both sides fixing.Simultaneously diver also needs gap, gap larger between cavity concrete stoplog 11 to stop up, and prevents when building underwater concrete concrete leakiness after running pulp.
Three, underwater concreting;
After in place the completing of template on cavity concrete stoplog 11, the operation platform by dam crest inserts conduit in the pouring hole of cavity concrete stoplog 11, and conduit is inserted into the bottom of bottom cavity concrete stoplog 11 always.During underwater concreting, diver need to check stoplog under water, prevents underwater concrete running pulp;
Consider after the underwater concrete of newly building shrinks and understand formation gap, New-old concrete mating face in shutoff gate slot, in order to stop up leakage passage, the grouting steel form 12 of upstream face is removed in concreting for 3 days afterwards under water, the underwater concrete of newly building between cavity concrete stoplog 11 and sideline, gate slot upstream is rejected to the groove that forms 5～8cm, adopt underwater sealing material to carry out pointing, stop up the leakage passage on New-old concrete mating face, gate slot position.
Four, on the cavity concrete stoplog 11 of the top a slice, gate sill 7 is installed;
After 11 installations of cavity concrete stoplog, because construction error can cause top of concrete planeness poor, cannot directly at cavity concrete stoplog 11 end faces, steel stop log gate 8 be installed, need to set up Di Kan, to guarantee that after steel stoplog gate installation in position, bottom surface rubber water sealing can play the effect of sealing.
In the end before 11 times water of a slice cavity concrete stoplog or bank embedded part of the adjustable end is installed under water, bank embedded part of the adjustable end is arranged on the gap of cavity concrete stoplog 11 tops and cavity concrete stoplog 11 end faces maintenance 5-15cm, after these sheet cavity concrete stoplog 11 installation in position, diver fixes tightening holding screw after end bank embedded part leveling by the adjusting screw mandrel of bank embedded part of the adjustable end under water, then in the gap between bank embedded part of the adjustable end and cavity concrete stoplog 11, builds the concrete of PBM under water of Self-leveling.
Five, the steel stop log gate 8 that installation and gate sill 7 are sealed and matched;
After PBM concreting certain hour in bank embedded part of the adjustable end with hoist tower machine by steel stop log gate 8 along the track installation in position in gate slot.Get final product the effect of one shutoff sealing.
By above-mentioned steps, realize without the hydraulic structure gate slot of gate guide plugging construction under water.
Claims (4)
1. without the hydraulic structure gate slot of a gate guide plugging construction method under water, it is characterized in that comprising the following steps:
One, in gate slot, without gate guide section, one or more pieces cavity concrete stoplogs (11) are installed;
Described cavity concrete stoplog (11) cross section adopts horizontal " work " character form structure;
Cavity concrete stoplog (11) is provided with a plurality of to mesopore (10);
When multi-disc cavity concrete stoplog (11) is installed by being arranged on the location that the one or more centering guiding devices (9) in mesopore (10) are realized to multi-disc cavity concrete stoplog (11);
Two, template installation in position under water;
Three, underwater concreting;
The template of upstream face is removed in concreting for 3 days afterwards under water, the underwater concrete of newly building between cavity concrete stoplog (11) and sideline, gate slot upstream is rejected to the groove that forms 5～8cm, adopt underwater sealing material to carry out pointing, stop up the leakage passage on New-old concrete mating face, gate slot position;
Four, at the cavity concrete stoplog (11) of the top a slice, gate sill (7) is above installed;
In the end before the lower water of a slice cavity concrete stoplog (11) or bank embedded part of the adjustable end is installed when this cavity concrete stoplog (11) is positioned under water, bank embedded part of the adjustable end is arranged on cavity concrete stoplog (11) top, with the gap that cavity concrete stoplog (11) end face keeps 5-15cm, then in the gap between bank embedded part of the adjustable end and cavity concrete stoplog (11), build PBM concrete under water;
Described bank embedded part of the adjustable end adopts angle steel and template construct, and the both sides of bank embedded part, the adjustable end are connected with concrete by adjustable bolt, so that the leveling of gate sill (7);
Five, the steel stop log gate (8) that installation and gate sill (7) are sealed and matched;
By above-mentioned steps, realize without the hydraulic structure gate slot of gate guide plugging construction under water.
2. a kind of hydraulic structure gate slot without gate guide according to claim 1 plugging construction method under water, is characterized in that: before cavity concrete stoplog (11) is installed, the concrete surface of gate slot is cleared up.
3. a kind of hydraulic structure gate slot without gate guide according to claim 1 plugging construction method under water, it is characterized in that: after installation form, also need larger gap between cavity concrete stoplog (11) to stop up, prevent running pulp when building underwater concrete.
4. a kind of hydraulic structure gate slot without gate guide according to claim 1 plugging construction method under water, it is characterized in that: after installation form, conduit is inserted in the pouring hole of cavity concrete stoplog (11), conduit is inserted into the bottom of nethermost cavity concrete stoplog (11) always.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083993.4A CN102587332B (en) | 2012-03-27 | 2012-03-27 | Construction method for underwater plugging of gate groove of hydraulic structure with no gate guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210083993.4A CN102587332B (en) | 2012-03-27 | 2012-03-27 | Construction method for underwater plugging of gate groove of hydraulic structure with no gate guide |
Publications (2)
| Publication Number | Publication Date |
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| CN102587332A CN102587332A (en) | 2012-07-18 |
| CN102587332B true CN102587332B (en) | 2014-09-03 |
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| CN201210083993.4A Expired - Fee Related CN102587332B (en) | 2012-03-27 | 2012-03-27 | Construction method for underwater plugging of gate groove of hydraulic structure with no gate guide |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877440B (en) * | 2012-09-07 | 2015-08-05 | 葛洲坝集团试验检测有限公司 | A kind of concrete stoplog Underwater Navigation adjusting device and stoplog localization method |
| CN104358240B (en) * | 2014-12-04 | 2016-06-08 | 杭州华能大坝安全工程技术有限公司 | A kind of gate sill leakage plugging device and constructional method thereof |
| CN112127327B (en) * | 2020-09-18 | 2022-07-19 | 王孟伟 | Safe movable dam capable of reminding abnormal working state |
| CN114855711B (en) * | 2022-04-15 | 2024-01-30 | 广东万奥建设工程有限公司 | High-strength anti-seismic wide gravity dam structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2021987A1 (en) * | 1989-08-11 | 1991-02-12 | Eric P. Austin | Sluice gate or penstock door |
| JPH093861A (en) * | 1995-06-19 | 1997-01-07 | Katada Tekkosho:Kk | Stop logs |
| JP2000234323A (en) * | 1999-02-15 | 2000-08-29 | Kumagai Gumi Co Ltd | Cut-off method for tap, etc., of dam |
| WO2009026668A1 (en) * | 2007-08-30 | 2009-03-05 | Fontaine-Alliance Inc. | Gate comprising stop logs |
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2012
- 2012-03-27 CN CN201210083993.4A patent/CN102587332B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2021987A1 (en) * | 1989-08-11 | 1991-02-12 | Eric P. Austin | Sluice gate or penstock door |
| JPH093861A (en) * | 1995-06-19 | 1997-01-07 | Katada Tekkosho:Kk | Stop logs |
| JP2000234323A (en) * | 1999-02-15 | 2000-08-29 | Kumagai Gumi Co Ltd | Cut-off method for tap, etc., of dam |
| WO2009026668A1 (en) * | 2007-08-30 | 2009-03-05 | Fontaine-Alliance Inc. | Gate comprising stop logs |
Non-Patent Citations (8)
| Title |
|---|
| 丹江口大坝加高工程的特点与技术难点;张小厅等;《南水北调与水利科技》;20091231;第7卷(第6期);第269-270页第3.4节 * |
| 刘经彪.巴贡水电工程导流洞出口混凝土叠梁下闸施工.《水利水电技术》.2010,第41卷(第8期),第62-63页第7节. |
| 刘金培.闸门埋件安装的两种工艺比较.《中国水利》.2009,(第06期),第55页第一节，图1. |
| 巴贡水电工程导流洞出口混凝土叠梁下闸施工;刘经彪;《水利水电技术》;20100831;第41卷(第8期);第62-63页第7节 * |
| 张小厅等.丹江口大坝加高工程的特点与技术难点.《南水北调与水利科技》.2009,第7卷(第6期),第269-270页第3.4节. |
| 王建华.缅甸邦朗电站导流洞叠梁门安装及下闸封堵.《云南水力发电》.2007,第23卷(第2期),第115-117页. |
| 缅甸邦朗电站导流洞叠梁门安装及下闸封堵;王建华;《云南水力发电》;20070430;第23卷(第2期);第115-117页 * |
| 闸门埋件安装的两种工艺比较;刘金培;《中国水利》;20090331(第06期);第55页第一节，图1 * |
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