CN111501688A - Transverse three-support-arm radial gate and support hinge concentricity control method thereof - Google Patents
Transverse three-support-arm radial gate and support hinge concentricity control method thereof Download PDFInfo
- Publication number
- CN111501688A CN111501688A CN202010293114.5A CN202010293114A CN111501688A CN 111501688 A CN111501688 A CN 111501688A CN 202010293114 A CN202010293114 A CN 202010293114A CN 111501688 A CN111501688 A CN 111501688A
- Authority
- CN
- China
- Prior art keywords
- support
- hinge
- girder
- gate
- span
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
- E02B7/42—Gates of segmental or sector-like shape with horizontal axis
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention provides a transverse three-support-arm radial gate and a control method of the concentricity of a support hinge of the transverse three-support-arm radial gate, wherein prestress is applied to a gate support hinge girder fixed on a mountain body through a prestressed anchor cable, a long-span single-span support hinge girder is simply supported into three small-span continuous beams, and each section of the small-span continuous beam is provided with one support hinge; when the gate is opened for flood discharge, the deformation of the hinge girder under the action of the pressure of mountain underground water and the self-weight can be homogenized by the prestressed anchorage, so that the relative displacement of the three hinge positions meets the requirement of the concentricity deviation of the gate hinge. The invention can control the deformation coordination of the three support arms of the radial gate to the maximum extent, ensure that the relative displacement of the three support arms meets the requirement of concentricity deviation, and improve the water retaining safety of the gate.
Description
Technical Field
The invention relates to the technical field of hydraulic and hydroelectric engineering, in particular to a transverse three-support-arm radial gate and a support hinge concentricity control method thereof.
Background
Along with the development of water conservancy and hydropower construction, large flood discharge tunnels bearing high water heads are widely applied, the projects generally adopt radial gates for retaining water, and the radial gates rotate around the support hinges of the support arms as the circle centers during opening and closing. The conventional radial gate is supported by two transverse support arms, the concentricity of the two support arms is well controlled, but the water head is increased along with the increase of the section size of the flood discharge tunnel, and the stress and the deformation of the radial gate with only two support arms under the action of huge water thrust exceed the material requirement, so that the radial gate is difficult to adapt to the water retaining requirement of a high water head. Therefore, the transverse three-support-arm radial gate is adopted for water retaining, the integral rigidity of the gate can be effectively enhanced, the stress and deformation of the gate are reduced, and the radial gate can bear larger water pressure; the concentricity requirement of the three support arm hinges is higher than that of the two support arm hinges, and particularly, when the radial gate bears various loads in the operation period, if the concentricity of the displacement of the three support arms exceeds the concentricity deviation requirement of the support arms of the radial gate, the water retaining safety of the radial gate is seriously influenced;
in conclusion, certain measures are taken to control the deformation coordination of the transverse three-support-arm radial gate, ensure that the displacement concentricity of the three hinges is within the concentric deviation requirement range, improve the water retaining safety of the gate and simultaneously be the key for applying the radial gate to a higher water head and a larger scale.
Disclosure of Invention
The invention aims to provide a transverse three-support-arm radial gate and a support hinge concentricity control method of the transverse three-support-arm radial gate, which can control the deformation coordination of three support arms of the radial gate to the maximum extent, ensure that the relative displacement of the three support hinges meets the concentricity deviation requirement and improve the water retaining safety of the gate.
According to the first aspect of the invention, the following technical scheme is adopted:
a control method of the concentricity of the radial gate hinge with three transverse support arms is characterized in that prestress is applied to a gate hinge girder fixed on a mountain body through a prestressed anchor cable, a long-span single-span hinge girder is simply supported into three small-span continuous beams, and each section of the small-span continuous beam is provided with a hinge; when the gate is opened for flood discharge, the deformation of the hinge girder under the action of the pressure of mountain underground water and the self-weight can be homogenized by the prestressed anchorage, so that the relative displacement of the three hinge positions meets the requirement of the concentricity deviation of the gate hinge.
Further, the hinge girder is poured in two stages, and the method comprises the following construction steps:
s1: after a mountain is excavated, first-stage concrete of the support hinge girder is poured, a steel sleeve is pre-embedded in the concrete corresponding to the part, through which the anchor cable penetrates, and the length of the steel sleeve extends to the surface of the support hinge girder;
s2: erecting a positioning steel beam, welding and fixing the steel beam and an anchor bar of the support girder exposed out of the first-stage concrete, and pouring second-stage concrete of the support girder;
s3: drilling an anchor cable hole into the mountain based on the steel sleeve, and putting down the anchor cable and the bottom of the anchor cable to a certain depth in the mountain;
s4: grouting an anchor cable hole to form an anchoring end, stretching the anchor cable, connecting the anchor cable with the outer end of the support hinge girder by using an anchoring part, applying prestress to the support hinge girder and the mountain bedrock, simply supporting the long-span single-span support hinge girder into three small-span continuous beams, and configuring one support hinge at each section;
s5: and fixing the support hinges on the steel beam, and mounting support arms and arc-shaped water retaining panels on the support hinges.
According to the second aspect of the invention, the following technical scheme is adopted:
a transverse three-support-arm radial gate is provided with three concentric support hinges, the axes of the three support hinges are horizontal, the three support hinges are arranged on a horizontal steel beam poured in a support hinge girder, a radial water retaining panel of the radial gate is respectively connected with the three support hinges through the three support arms which are transversely arranged, and the support hinge girder is poured on a mountain foundation rock surface after excavation treatment; the transverse three-support-arm radial gate is characterized by comprising a plurality of prestressed anchor cables anchored on a mountain body, wherein the tops of the anchor cables are connected with a support hinge crossbeam; the prestressed anchor cables simply support the large-span single-span hinge girder into three small-span continuous beams, and each section of the small-span continuous beam is provided with one hinge.
Furthermore, the anchor cables are distributed on the upper side and the lower side of the steel beam in two rows, and the corresponding prestressed anchor cables are distributed on the upper side and the lower side of the steel beam between the adjacent support hinges to form the staggered arrangement of the support hinges and the prestressed anchor cables.
The invention has the beneficial effects that: the invention applies prestress anchorage to the gate support hinge girder fixed on the mountain behind the tower, controls the deformation coordination of the transverse three-support-arm radial gate to the maximum extent, ensures the concentricity of the three supports, improves the operation safety of the gate, and enables the radial gate to be applied to a higher water head in a larger scale.
Drawings
FIG. 1 is a water retaining section of the transverse three-arm radial gate of the present invention;
FIG. 2 is a top view of the transverse three arm radial gate of the present invention;
FIG. 3 is a cross-sectional view of the articulated boom of the present invention;
FIG. 4 is a vertical cross-sectional view of the anchor cable and hinge girder and steel beam arrangement of the present invention;
figures 5-1 and 5-2 are schematic illustrations of the deformation deflection of an un-prestressed and prestressed (invention) articulated girder, respectively.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
The invention provides a transverse three-support-arm radial gate which is provided with three hinges 5, wherein the axes of the three hinges 5 are horizontal, and the concentricity deviation of the three hinges 5 is less than 2 mm. Three hinges 5 are arranged on the horizontal steel beam 4, and three support arms 6 of the radial gate arc-shaped water retaining panel 7 which are transversely arranged are connected with the three hinges 5.
The mounting structure of the transverse three-support-arm radial gate comprises an anchor cable 9, a support hinge girder 3 and a steel beam 4 which are arranged on a mountain body 1, wherein the outer end of the anchor cable 9 is connected with the support hinge girder 3 and is loaded with prestress.
The anchor cables 9 are distributed on the upper side and the lower side of the steel beam 4 in two rows, the corresponding anchor cables 9 are distributed on the upper side and the lower side of the steel beam 4 between the adjacent hinges 5, and the hinges 5 and the anchor cables 9 are arranged in a staggered mode. The anchor cables 9 are symmetrically arranged on the upper side and the lower side of the steel beam 4, the position of each anchor cable 9 is kept away from the steel beam 4 for a certain distance, and deformation of the steel beam 4 caused by tensioning of the anchor cables 9 is avoided.
The support hinge girder 3 is anchored on the mountain body 1 through anchor bars, and the steel beam 4 is buried in the support hinge girder 3 and is welded and fixed with the anchor bars in the support hinge girder 3.
When the support hinge girder 3 is poured, a corresponding steel sleeve 8 is buried at a preset penetrating position of the anchor cable 9, after the support leg girder 5 is poured, an anchor cable hole is drilled into the mountain body based on the steel sleeve 8, then a series of anchor cable installation operations such as lowering the anchor cable 9 and grouting are carried out, and the anchor cable 9 extends to the anchor cable hole in the mountain body 1 through the steel sleeve 8.
The construction process of the invention comprises the following steps:
s1: excavating a mountain, arranging anchor bars at the positions of the support hinge girders 3, anchoring the support hinge girders 3 to mountain bedrock 1, pouring first-stage concrete of the support hinge girders 3, pre-burying steel sleeves 8 at preset penetrating positions of anchor cables in the concrete, and extending the lengths of the steel sleeves 8 to the surfaces of the support hinge girders 3;
s2: erecting a horizontal steel beam 4, welding and fixing the steel beam 4 and an anchor bar in the first-stage concrete 31, and pouring second-stage concrete 32 of the support hinge girder 3;
s3: drilling an anchor cable hole into the mountain based on the steel sleeve, and lowering the anchor cable 9 and the bottom of the anchor cable 9 to a certain depth into the mountain;
s4: grouting an anchor cable hole to form an anchoring end, stretching an anchor cable 9, connecting the anchor cable with the outer end of the support hinge girder 3 by using an anchoring part, applying prestress to the support hinge girder 3 and the mountain bedrock 1, simply supporting the long-span single-span support hinge girder into three small-span continuous beams, and configuring one support hinge at each section;
s5: and fixing a support hinge 5 on the steel beam 4, and mounting a support arm 6 and an arc-shaped water retaining panel 7 on the support hinge 5.
The embodiment has the main characteristics of controlling the concentricity of the support hinges of the transverse three-support-arm radial gate: the supporting and hinging girder 3 is prestressed and anchored, an anchoring point is used as a support to be changed into three small-span continuous girders, the relative variation potential difference between the deflection of the supporting and hinging girder 3 and three supporting and hinging positions 5 is reduced, so that the requirement of the concentricity of the gate supporting and hinging is met, and the concentricity deviation refers to the deviation of the concentricity which is the distance between a certain supporting and hinging position exceeding the connecting line of the other two supports. The invention can control the concentricity deviation to be not more than 2mm and can control the concentricity deviation by adjusting the position of the prestressed anchor cable and the size of the anchoring force.
When the gate blocks water, the water thrust is transmitted to the deep part of the mountain body through the support arm and the support hinge girder for bearing, and the deformation of the support hinge girder is small. When the transverse three-support-arm radial gate is opened for flood discharge, the prestressed anchor cable assembly on the support hinge girder can homogenize the mountain underground water pressure (the reference number 100 is mountain underground water elevation) and the gravity of the gate, namely, the large-span single-span support hinge girder 3 is simply supported into 3 small-span continuous girders, so that the deformation deflection 11 of the support hinge girder is effectively reduced, each section is provided with one support hinge 5, the relative deflection of the three support hinge positions tends to be consistent, and the requirement of the concentricity deviation of the support hinges of the gate is met.
The above embodiment is merely a preferred embodiment of the present invention, and those skilled in the art will understand that modifications or substitutions of technical solutions or parameters in the embodiment can be made without departing from the principle and essence of the present invention, and all of them shall be covered by the protection scope of the present invention.
Claims (4)
1. A control method of the concentricity of the radial gate hinge with three transverse support arms is characterized in that prestress is applied to the gate hinge girder fixed on a mountain body through a prestressed anchor cable, a long-span single-span hinge girder is simply supported into three small-span continuous beams, and each section of the small-span continuous beam is provided with a hinge; when the gate is opened for flood discharge, the deformation of the hinge girder under the action of the pressure of mountain underground water and the self-weight can be homogenized by the prestressed anchorage, so that the relative displacement of the three hinge positions meets the requirement of the concentricity deviation of the gate hinge.
2. The method for controlling the concentricity of the hinge of the transverse three-arm radial gate as claimed in claim 1, which comprises the following construction steps:
s1: after a mountain is excavated, first-stage concrete of the support hinge girder is poured, a steel sleeve is pre-embedded in the concrete corresponding to the part, through which the anchor cable penetrates, and the length of the steel sleeve extends to the surface of the support hinge girder;
s2: erecting a positioning steel beam, welding and fixing the steel beam and an anchor bar of the support girder exposed out of the first-stage concrete, and pouring second-stage concrete of the support girder;
s3: drilling an anchor cable hole into the mountain based on the steel sleeve, and putting down the anchor cable and the bottom of the anchor cable to a certain depth in the mountain;
s4: grouting an anchor cable hole to form an anchoring end, stretching the anchor cable, connecting the anchor cable with the outer end of the support hinge girder by using an anchoring part, applying prestress to the support hinge girder and the mountain bedrock, simply supporting the long-span single-span support hinge girder into three small-span continuous beams, and configuring one support hinge at each section;
s5: and fixing the support hinges on the steel beam, and mounting support arms and arc-shaped water retaining panels on the support hinges.
3. A transverse three-support-arm radial gate is provided with three concentric support hinges, the axes of the three support hinges are horizontal, the three support hinges are arranged on a horizontal steel beam poured in a support hinge girder, a radial water retaining panel of the radial gate is respectively connected with the three support hinges through the three support arms which are transversely arranged, and the support hinge girder is poured on a mountain foundation rock surface after excavation treatment; the transverse three-support-arm radial gate is characterized by comprising a plurality of prestressed anchor cables anchored on a mountain body, wherein the tops of the anchor cables are connected with a support hinge crossbeam; the prestressed anchor cables simply support the large-span single-span hinge girder into three small-span continuous beams, and each section of the small-span continuous beam is provided with one hinge.
4. The transverse three-arm radial gate of claim 3, wherein the anchor cables are arranged in two rows, one above the other and the other below the steel beam, and the corresponding prestressed anchor cables are arranged between the adjacent hinges on both the upper side and the lower side of the steel beam, so as to form a staggered arrangement of the hinges and the prestressed anchor cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293114.5A CN111501688A (en) | 2020-04-14 | 2020-04-14 | Transverse three-support-arm radial gate and support hinge concentricity control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010293114.5A CN111501688A (en) | 2020-04-14 | 2020-04-14 | Transverse three-support-arm radial gate and support hinge concentricity control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111501688A true CN111501688A (en) | 2020-08-07 |
Family
ID=71869212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010293114.5A Pending CN111501688A (en) | 2020-04-14 | 2020-04-14 | Transverse three-support-arm radial gate and support hinge concentricity control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501688A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226915A (en) * | 1984-04-24 | 1985-11-12 | Ishikawajima Harima Heavy Ind Co Ltd | Fitting method of high-pressure radial gate water-tight rubber seat |
| CN1740452A (en) * | 2005-09-16 | 2006-03-01 | 赵素龙 | Rotating elevated panorama barrage gate |
| CN202039327U (en) * | 2011-04-22 | 2011-11-16 | 中国水电顾问集团贵阳勘测设计研究院 | Building structure of prestressed concrete sluice pier |
| CN202247812U (en) * | 2011-09-06 | 2012-05-30 | 中国水电顾问集团贵阳勘测设计研究院 | Multi-frame multi-support-hinge arc-shaped gate with double-lifting-point down-the-hole |
| CN209398790U (en) * | 2018-12-06 | 2019-09-17 | 中铁一局集团厦门建设工程有限公司 | A kind of rock anchor device traversing for cable crane main cable saddle |
| CN212506152U (en) * | 2020-04-14 | 2021-02-09 | 中国电建集团华东勘测设计研究院有限公司 | Transverse three-support-arm radial gate |
-
2020
- 2020-04-14 CN CN202010293114.5A patent/CN111501688A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60226915A (en) * | 1984-04-24 | 1985-11-12 | Ishikawajima Harima Heavy Ind Co Ltd | Fitting method of high-pressure radial gate water-tight rubber seat |
| CN1740452A (en) * | 2005-09-16 | 2006-03-01 | 赵素龙 | Rotating elevated panorama barrage gate |
| CN202039327U (en) * | 2011-04-22 | 2011-11-16 | 中国水电顾问集团贵阳勘测设计研究院 | Building structure of prestressed concrete sluice pier |
| CN202247812U (en) * | 2011-09-06 | 2012-05-30 | 中国水电顾问集团贵阳勘测设计研究院 | Multi-frame multi-support-hinge arc-shaped gate with double-lifting-point down-the-hole |
| CN209398790U (en) * | 2018-12-06 | 2019-09-17 | 中铁一局集团厦门建设工程有限公司 | A kind of rock anchor device traversing for cable crane main cable saddle |
| CN212506152U (en) * | 2020-04-14 | 2021-02-09 | 中国电建集团华东勘测设计研究院有限公司 | Transverse three-support-arm radial gate |
Non-Patent Citations (4)
| Title |
|---|
| 中国长江三峡集团有限公司: "《建筑与安装工程类招标文件范本》", 30 June 2018, 中国三峡出版社 * |
| 樊启祥等: "《泄洪洞工程实践》", 30 September 2016, 中国三峡出版社 * |
| 殷和平等: "《土木工程材料》", 31 March 2019, 武汉大学出版社 * |
| 殷龙生等: "《水利水电工程施工手册 第4卷 金属结构制作与机电安装工程》", 30 September 2004, 中国电力出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101338678B (en) | Supporting arch hidden digging top-down construction method | |
| CN108131145A (en) | A kind of construction method of super-span tunnel excavation support | |
| CN112176952A (en) | Anchor cable support system for tunnel top soil high slope and construction method | |
| CN113482011B (en) | Large-diameter PHC pipe pile and cast-in-situ bored pile combined foundation pit supporting structure and method | |
| CN212506152U (en) | Transverse three-support-arm radial gate | |
| CN111501688A (en) | Transverse three-support-arm radial gate and support hinge concentricity control method thereof | |
| CN217974413U (en) | Deep and shallow foundation pit supporting construction structure | |
| CN116479897A (en) | Shallow foundation pit collapse rapid reinforcement supporting method with depth smaller than 10m | |
| CN114960673A (en) | Quickly-formed deep foundation pit PC (polycarbonate) component supporting structure and construction method | |
| CN212404803U (en) | Tunnel inverted arch combined type cableway bridge abutment | |
| CN114635709A (en) | Non-span-reducing construction method and construction structure for super-large-section shallow-buried subway station | |
| CN211737157U (en) | Tunnel primary support structure of steel arch frame | |
| CN114016534A (en) | Rock drilling anchor cable and bearing platform combined anti-seismic foundation and construction method thereof | |
| CN210829267U (en) | Shield constructs interval back construction air shaft structure | |
| CN108457200B (en) | Temporary supporting structure for underpinning of curved bridge section pile foundation and construction method | |
| CN113006086A (en) | Combination formula underground structure based on frame pile and miniature composite pile | |
| CN111305233A (en) | Axial force compensation type prestress fish-bellied foundation pit steel supporting structure and construction method thereof | |
| CN219691552U (en) | Large-span underground cavern roof arch surrounding rock stability control device | |
| CN220284844U (en) | Railway roadbed assembled stock arch skeleton side slope protective structure | |
| CN214573703U (en) | Anchor cable support system for tunnel top soil high slope | |
| CN117967323B (en) | Reinforcing ring structure at hydraulic tunnel fork-to-branch hole interface and roof-picking construction method | |
| CN219527660U (en) | Full-assembled large-span steel structure soft soil deep foundation pit supporting structure | |
| CN215948214U (en) | Be used for deep pipe gallery structure and major structure to build slant biography power structure again | |
| CN220248100U (en) | High-water-content soil tunnel hole outer supporting structure | |
| CN215860227U (en) | Inclined shaft digs into structure of kicking of main tunnel through pilot tunnel |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |