CN108442949B - Assembled pump house suction well supporting system and construction method - Google Patents
Assembled pump house suction well supporting system and construction method Download PDFInfo
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- CN108442949B CN108442949B CN201810415051.9A CN201810415051A CN108442949B CN 108442949 B CN108442949 B CN 108442949B CN 201810415051 A CN201810415051 A CN 201810415051A CN 108442949 B CN108442949 B CN 108442949B
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- 238000010276 construction Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 170
- 239000010959 steel Substances 0.000 claims abstract description 170
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000004567 concrete Substances 0.000 claims description 36
- 238000003466 welding Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 9
- 239000011150 reinforced concrete Substances 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Joining Of Building Structures In Genera (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The application relates to an assembled pump house suction well supporting system and a construction method, comprising the following steps: the combined support comprises a water absorbing well support, a niche support and a pump house lap joint support, wherein the water absorbing well support comprises a plurality of parallel and horizontally distributed annular steel pipes, and a plurality of vertically distributed vertical steel pipes are connected between adjacent annular steel pipes through first standard connecting pieces; the niche bracket comprises a plurality of vertically distributed door-shaped steel pipes, and the door-shaped steel pipes are connected with the water absorbing well bracket through second standard connecting pieces and plug-in sleeves fixed on the second standard connecting pieces; the pump room overlap joint support comprises a plurality of C-shaped steel pipes which are vertically distributed, and two ends of each C-shaped steel pipe are connected with the water absorbing well support and the niche support through second standard connecting pieces.
Description
Technical Field
The application relates to the technical field of underground engineering supporting devices, in particular to an assembled pump house suction well supporting system and a construction method.
Background
The pump house water absorbing well is an underground building for underground drainage and storage of drainage facilities, is generally arranged at a deeper position of a mine in order to meet the water collecting and drainage requirements, is arranged in a roadway group, has complex construction conditions, and increases the supporting difficulty and the damage degree of the pump house water absorbing well along with the increase of the mining depth of the mine; reinforced concrete pouring is adopted at present, and as the mining depth is larger, the surrounding rock load is continuously increased, and the thickness of the required reinforced concrete is also larger; the arrangement of the water absorbing well and the water distribution roadway enables the water pump room to be the region with the denser solid roadway, the stress concentration of surrounding rocks of the roadway is easy to cause, the deformation rate of the surrounding rocks is accelerated, the bearing is started after the concrete is poured, the reinforced concrete has large initial defects, the reinforced concrete is easy to damage in the later period, the roadway is unstable, the pump room system is damaged by pressure, the normal operation of the pump room is seriously influenced, the production safety of a mine is endangered, and the later period repairing cost is huge.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides an assembled pump room suction well support system which can effectively ensure the initial strength of a pump room suction well, reduce the roadway repair rate and prolong the service life of the pump room suction well support.
In order to achieve the above purpose, the present application adopts the following technical scheme:
an assembled pump house suction well support system comprising: the concrete layer of combination support and pouring on the combination support, the combination support includes:
the water absorbing well bracket comprises a plurality of parallel annular steel pipes which are horizontally distributed, and a plurality of vertical steel pipes which are vertically distributed are connected between the adjacent annular steel pipes through first standard connecting pieces.
The niche bracket comprises a plurality of vertically distributed door-shaped steel pipes, and the door-shaped steel pipes are connected with the water absorbing well bracket through second standard connecting pieces and plug-in sleeves fixed on the second standard connecting pieces.
The pump house overlap joint support comprises a plurality of C-shaped steel pipes which are vertically distributed, and two ends of each C-shaped steel pipe are connected with the water absorbing well support and the niche support through second standard connecting pieces.
Further, grouting openings are formed in the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe, and concrete is poured into the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe through the grouting openings.
Furthermore, the door-shaped steel pipe is connected with symmetrically distributed inclined supports through a second standard connecting piece.
Further, the first standard connecting piece comprises two semicircular sleeves which are fixedly connected to form a cylindrical cavity for the steel pipe to pass through.
Further, the second standard connecting piece comprises a round sleeve used for a steel pipe to penetrate, the round sleeve is fixedly connected with the welding plate, the plug sleeve is fixed on the welding plate, and a reinforcing plate is arranged between the plug sleeve and the welding plate.
The application also discloses a construction method of the assembled pump house suction well support system, which comprises the following steps: the method comprises the following steps:
step 1: the method comprises the steps of preprocessing annular steel pipes, vertical steel pipes, door-shaped steel pipes and C-shaped steel pipes, and assembling and welding debugging the steel pipes with a first standard connecting piece and a second standard connecting piece.
Step 2: the method comprises the steps of excavating a roadway, assembling a combined support underground, firstly assembling an annular steel pipe and a vertical steel pipe, completing the installation of a water absorbing well support, then installing a door-shaped pipe on the water absorbing well support, installing an inclined support, completing the installation of a niche support, and finally installing two ends of a C-shaped steel pipe on the water absorbing well support and the niche support respectively, and completing the installation of a pump house lap joint support.
Step 3: and pouring concrete into the annular steel pipe, the vertical steel pipe and the C-shaped steel pipe of the niche bracket, the inclined support and the pump room overlap bracket of the water absorbing well bracket to form a steel pipe concrete combined bracket, and pouring concrete on the peripheries of the water absorbing well bracket, the niche bracket and the pump room overlap bracket to enable each steel pipe to be buried into the concrete to form a concrete layer.
Further, in the step 2, the method for installing the water absorbing well bracket comprises the following steps: and (3) connecting and fixing a plurality of first standard pipes on the annular steel pipes, welding vertical steel pipes between adjacent annular steel pipes on the semicircular sleeves of the first standard connecting pieces, installing annular bent pipes and the vertical steel pipes layer by layer, and assembling the water absorbing well bracket.
Further, in the step 2, the installation method of the niche bracket is as follows: the annular steel pipe at the joint of the water absorbing well bracket and the niche bracket is provided with a plurality of second standard connecting pieces, a welding plate of each second standard connecting piece is welded with a splicing sleeve, the splicing sleeve is concentric with the vertical steel pipe, the door-shaped steel pipe is inserted into the splicing sleeve, two inclined support ends are fixedly connected with the door-shaped steel pipe by the second standard connecting pieces, and two inclined support ends are fixedly connected with the welding plate of the second standard connecting pieces.
Further, in the step 2, the method for installing the pump house overlap joint bracket comprises the following steps: one end of the C-shaped steel pipe is connected with the door-shaped steel pipe through a second standard connecting piece, the other end of the C-shaped steel pipe is connected with the annular bent pipe through the second standard connecting piece, and two ends of the C-shaped steel pipe are welded on a welding plate of the second standard connecting piece.
Further, in the step 3, a concrete layer is poured on the periphery of the inverted bottom arch of the C-shaped steel pipe.
The application has the beneficial effects that:
1. the pump room water absorbing well support system provided by the application has the advantages that the combined support is made of steel pipe concrete, the combined support has higher bearing capacity compared with the traditional reinforced concrete structure, and in an initial state, the concrete can bear larger surrounding rock load without solidification, so that the defects of large initial defects, easiness in damage in later stages, instability of a roadway and damage of a pump room system of the traditional pump room water absorbing well are avoided, the initial strength of the support system is effectively ensured, the overall stability of the support system is improved, the later-stage repair rate of the roadway is reduced, the service life of the support system is prolonged, and the combined support system has important significance for safe and efficient exploitation of deep resources.
2. The pump house water absorbing well supporting system provided by the application has the advantages that the combined support adopts an assembled structure, the structure is simple, the construction is convenient, and the economy and the reliability are realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is a schematic diagram of a support system according to the present application;
FIG. 2 is a schematic view of the structure of the combined bracket of the application;
FIG. 3 is a schematic view of a first standard connector according to the present application;
FIG. 4 is a schematic view of a second standard connector according to the present application;
FIG. 5 is a schematic diagram of the assembly principle of the annular steel tube and the vertical steel tube of the present application;
FIG. 6 is a schematic diagram of the assembly principle of the inclined support and the door-shaped steel tube of the application;
FIG. 7 is a schematic view of an assembly of a plug ferrule of the present application;
FIG. 8 is a schematic view of the assembly of the diagonal brace and the "gate" shaped steel tube of the present application;
the steel pipe combined support comprises, by weight, 1-1 parts of a combined support, 1-2 parts of a first standard connector, 1-2-1 parts of a semicircular sleeve, 1-3 parts of a vertical steel pipe, 1-4 parts of a door-shaped steel pipe, 1-4-1 parts of a vertical pipe section, 1-4-2 parts of a transverse pipe section, 1-5 parts of a second standard connector, 1-5-1 parts of a circular sleeve, 1-5-2 parts of a welding plate, 1-6 parts of a plugging sleeve, 1-7 parts of a C-shaped steel pipe, 1-8 parts of an inclined support, 1-9 parts of a reinforcing plate and 2 parts of a concrete layer.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
For convenience of description, the words "upper", "lower", "left" and "right" in the present application, if they mean only that the directions are consistent with the upper, lower, left, and right directions of the drawings per se, and do not limit the structure, only for convenience of description and simplification of the description, but do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
As introduced by the background technology, the arrangement of the water absorbing well and the water distribution roadway enables the water pump room to be the area with the denser solid roadway, the stress concentration of surrounding rocks of the roadway is easy to cause, the deformation rate of the surrounding rocks is accelerated, the bearing is started when the concrete is not solidified after being poured, the initial defect of reinforced concrete is large, the later period is easy to damage, the roadway is unstable, the pump room system is also damaged under compression, and the application provides an assembled pump room water absorbing well supporting system for solving the problems.
In an exemplary embodiment of the present application, as shown in fig. 1 to 8, a system for supporting an absorption well of a prefabricated pump house, includes: a combined bracket 1 and a concrete layer 2 cast on the combined bracket.
The composite bracket comprises:
the water absorbing well bracket comprises a plurality of parallel and horizontally distributed annular steel pipes 1-1, and a plurality of vertically distributed vertical steel pipes 1-3 are connected between the adjacent annular steel pipes through first standard connectors 1-2.
The niche bracket directly acts on the suction well bracket to assist the suction well bracket to bear the vertical pressure of surrounding rock, the suction well bracket comprises a plurality of vertically distributed door-shaped steel pipes 1-4, the door-shaped steel pipes are connected with the suction well bracket through second standard connecting pieces 1-5 and plug-in sleeves 1-6 fixed on the second standard connecting pieces, the door-shaped steel pipes are specifically formed by bending one steel pipe, the door-shaped steel pipes comprise two sections of vertical pipe sections 1-4-1 and transverse pipe sections 1-4-2 connected between the two vertical pipe sections, the door-shaped steel pipes are inserted into the plug-in sleeves through the two vertical pipe sections, and the second standard connecting pieces are fixed on the suction well bracket to realize the fixed connection of the door-shaped steel pipes and the suction well bracket.
The pump house overlap joint branch comprises a plurality of C-shaped steel pipes 1-7 which are vertically distributed, and two ends of each C-shaped steel pipe are connected with a water absorbing well bracket and a niche bracket through second standard connecting pieces.
The annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe are provided with grouting openings, and concrete is poured into the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe through the grouting openings.
The door-shaped steel pipe is connected with symmetrically distributed inclined supports 1-8 through a second standard connecting piece. One end of the inclined support is connected with the vertical pipe section through a second standard connecting piece, the other end of the inclined support is connected with the transverse pipe section through the second standard connecting piece, and the niche bracket is required to bear the pressure of the pump house lap joint frame besides the pressure of the surrounding rock, so that the inclined support is additionally arranged on the door-shaped steel pipe.
The first standard connecting piece 1-2 comprises two semicircular sleeves 1-2-1, the two semicircular sleeves are fixedly connected through bolts to form a cylindrical cavity, a steel pipe penetrates through the cylindrical cavity, and the steel pipe is clamped between the two semicircular sleeves through the bolts.
The second standard connecting piece 1-5 comprises a round sleeve 1-5-1 used for a steel pipe to pass through, and the round sleeve is fixedly connected with the welding plate 1-5-2 through bolts.
The splicing sleeve is welded on the welding plate, and reinforcing plates 1-9 are arranged between the splicing sleeve and the welding plate.
The application also discloses a construction method of the assembled pump house suction well support system, which comprises the following steps: the method comprises the following steps:
step 1: according to geological data and end face size requirements, the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe are prefabricated in factories, and are assembled and welded with the first standard connecting piece and the second standard connecting piece.
Step 2: the method comprises the steps of excavating a roadway, manually conveying, conveying steel pipes to the underground, assembling a combined support underground, firstly combining annular steel pipes and vertical steel pipes, completing the installation of a water absorption well support, installing a door-shaped steel pipe on the water absorption well support, installing an inclined support, completing the installation of a niche support, and finally installing two ends of a C-shaped steel pipe on the water absorption well support and the niche support respectively, and completing the installation of a pump house lap joint support.
Step 3: the concrete is poured into the annular steel pipe, the vertical steel pipe and the C-shaped steel pipe of the niche bracket of the water absorbing well bracket, the inclined support and the pump room overlap bracket through the grouting openings, so that each steel pipe is made into steel pipe concrete, the bearing capacity of the steel pipe is enhanced, and concrete is poured on the peripheries of the water absorbing well bracket, the niche bracket and the pump room overlap bracket, so that each steel pipe is buried into the concrete to form a concrete layer.
In the step 2, the installation method of the water absorbing well bracket comprises the following steps: the method comprises the steps of fixedly connecting a plurality of first standard connection parts on an annular steel pipe, enabling the annular steel pipe to penetrate through a circumferential cavity of the first standard connection part, clamping a semicircular sleeve on the annular steel pipe by bolts, welding one end of a vertical steel pipe on the circumferential surface of the semicircular sleeve, and then welding the other end of the vertical steel pipe on the semicircular sleeve of the first standard connection part connected with the adjacent upper annular steel pipe.
In the step 2, the mounting method of the niche bracket comprises the following steps: firstly, welding a splicing sleeve on a welding plate of a second standard connecting piece assembled on the uppermost annular steel pipe of the water absorbing well bracket, wherein the splicing sleeve is concentric with a corresponding vertical pipe, so that eccentric load is prevented, the vertical pipe section of the door-shaped steel pipe is inserted into the splicing sleeve, the fixation of the niche bracket and the water absorbing well bracket is realized, and two inclined support ends are fixedly connected with the door-shaped steel pipe by using the second standard connecting piece. And two ends of the inclined support are respectively welded on welding plates of the second standard connecting piece, and the vertical pipe section and the transverse pipe section penetrate through round sleeves of the second standard connecting piece.
In the step 3, the installation method of the pump house overlap joint bracket comprises the following steps: one end of the C-shaped steel pipe is connected with the door-shaped steel pipe through a second standard connecting piece, the connecting part of the C-shaped steel pipe is positioned on the transverse pipe of the door-shaped steel pipe, the other end of the C-shaped steel pipe is connected with the uppermost annular bent pipe through the second standard connecting piece, and two ends of the C-shaped steel pipe are welded on a welding plate of the second standard connecting piece. The method of use of the second standard connector is the same as the method of use of the second standard connector in the suction well bracket and niche bracket and will not be described in detail again.
In the step 3, the concrete layer is poured on the periphery of the inverted arch of the C-shaped steel pipe, when the concrete layer is poured, the concrete layer cannot be buried in the part, below the pump room ground, of the C-shaped steel pipe, in order to increase the assembly strength of the C-shaped steel pipe, the concrete layer is poured on the periphery of the inverted arch of the C-shaped steel pipe, the concrete layer can be poured by digging a groove at the inverted arch, and then concrete is poured, so that the concrete is not poured on the periphery of other pipe sections, below the pump room ground, of the C-shaped steel pipe, the material is saved, and the cost is reduced.
The combined support of the application adopts the steel pipe concrete, has higher bearing capacity compared with the traditional reinforced concrete structure, can bear larger surrounding rock load by the steel pipe when in an initial state, avoids the defects of large initial defects, easy damage in later period, unstable roadway and damage of a pump room system of the traditional pump room suction well reinforced concrete structure, effectively ensures the initial strength of the support system, improves the overall stability of the support system, reduces the later period repair rate of the roadway, prolongs the service life of the support system, and has important significance for safe and efficient exploitation of deep resources. The combined bracket adopts an assembled structure, has simple structure and is convenient to construct.
The present application will not be described in detail by using the prior art in the field.
While the foregoing description of the embodiments of the present application has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the application, but rather, it is intended to cover all modifications or variations within the scope of the application as defined by the claims of the present application.
Claims (8)
1. An assembled pump house suction well support system, characterized by comprising: the concrete layer of combination support and pouring on the combination support, the combination support includes:
the water absorbing well bracket comprises a plurality of parallel annular steel pipes which are horizontally distributed, and a plurality of vertical steel pipes which are vertically distributed are connected between the adjacent annular steel pipes through first standard connecting pieces;
the niche bracket comprises a plurality of vertically distributed door-shaped steel pipes, and the door-shaped steel pipes are connected with the water absorbing well bracket through second standard connecting pieces and plug-in sleeves fixed on the second standard connecting pieces;
the pump room lap joint bracket comprises a plurality of C-shaped steel pipes which are vertically distributed, and two ends of each C-shaped steel pipe are connected with the water absorbing well bracket and the niche bracket through second standard connecting pieces;
the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe are provided with grouting openings, and concrete is poured into the annular steel pipe, the vertical steel pipe, the door-shaped steel pipe and the C-shaped steel pipe through the grouting openings;
the door-shaped steel pipe is connected with symmetrically distributed inclined supports through a second standard connecting piece.
2. A prefabricated pump house suction well support system according to claim 1, wherein the first standard connector comprises two semicircular sleeves fixedly connected to form a cylindrical cavity for the passage of a steel pipe.
3. A prefabricated pump house suction well support system according to claim 2, wherein the second standard connector comprises a circular sleeve for a steel pipe to pass through, the circular sleeve is fixedly connected with a welding plate, the plug sleeve is fixed on the welding plate, and a reinforcing plate is arranged between the plug sleeve and the welding plate.
4. A method of constructing an assembled pump house suction well support system as claimed in claim 3, comprising the steps of:
step 1: preprocessing an annular steel pipe, a vertical steel pipe, a door-shaped steel pipe and a C-shaped steel pipe, and assembling and welding the steel pipes with a first standard connecting piece and a second standard connecting piece;
step 2: excavating a roadway, assembling a combined support underground, firstly assembling an annular steel pipe and a vertical steel pipe, completing the installation of a water absorbing well support, then installing a door-shaped steel pipe on the water absorbing well support, installing an inclined support, completing the installation of a niche support, and finally installing two ends of a C-shaped steel pipe on the water absorbing well support and the niche support respectively, and completing the installation of a pump house lap joint support;
step 3: and pouring concrete into the annular steel pipe, the vertical steel pipe and the C-shaped steel pipe of the niche bracket, the inclined support and the pump room overlap bracket of the water absorbing well bracket to form a steel pipe concrete combined bracket, and pouring concrete on the peripheries of the water absorbing well bracket, the niche bracket and the pump room overlap bracket to enable each steel pipe to be buried into the concrete to form a concrete layer.
5. The construction method according to claim 4, wherein in the step 2, the installation method of the suction well bracket comprises the following steps: and fixing a plurality of first standard connecting pieces on the annular steel pipes, welding vertical steel pipes between adjacent annular steel pipes on the semicircular sleeves of the first standard connecting pieces, installing the annular steel pipes and the vertical steel pipes layer by layer, and assembling the water absorbing well bracket.
6. The construction method according to claim 4, wherein in the step 2, the niche bracket is installed by: the method is characterized in that a plurality of second standard connecting pieces are arranged on an annular steel pipe at the joint of the water absorbing well bracket and the niche bracket, a splicing sleeve is welded on a welding plate of each second standard connecting piece, the splicing sleeve is concentric with the vertical steel pipe, a door-shaped steel pipe is inserted into the splicing sleeve, two inclined support ends are fixedly connected with the door-shaped steel pipe by the aid of the second standard connecting pieces, and two inclined support ends are fixedly connected with welding plates of the second standard connecting pieces.
7. The construction method according to claim 4, wherein in the step 2, the pump house overlap joint bracket is installed by: one end of the C-shaped steel pipe is connected with the door-shaped steel pipe through a second standard connecting piece, the other end of the C-shaped steel pipe is connected with the annular steel pipe through the second standard connecting piece, and two ends of the C-shaped steel pipe are welded on a welding plate of the second standard connecting piece.
8. The construction method according to claim 4, wherein in the step 3, a concrete layer is poured around the inverted arch of the C-shaped steel pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810415051.9A CN108442949B (en) | 2018-05-03 | 2018-05-03 | Assembled pump house suction well supporting system and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810415051.9A CN108442949B (en) | 2018-05-03 | 2018-05-03 | Assembled pump house suction well supporting system and construction method |
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| CN108442949A CN108442949A (en) | 2018-08-24 |
| CN108442949B true CN108442949B (en) | 2023-09-26 |
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| CN208280966U (en) * | 2018-05-03 | 2018-12-25 | 山东建筑大学 | A kind of assembled pump house water-absorbing well support system |
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2018
- 2018-05-03 CN CN201810415051.9A patent/CN108442949B/en active Active
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| JPH0996197A (en) * | 1995-09-29 | 1997-04-08 | Shimizu Corp | Structure of support wall and construction method therefor |
| CN201321746Y (en) * | 2008-12-19 | 2009-10-07 | 鞍钢集团设计研究院 | High water level and large volume steel structure water tower |
| CN104747192A (en) * | 2015-01-27 | 2015-07-01 | 中国矿业大学 | Steel tube concrete stress deformation feedback supporting structure suitable for vertical well cylinder |
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| Title |
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| 王军 等.深井交岔点围岩流变扰动效应及钢管混凝土组合支架支护技术研究.岩石力学与工程学报.2018,第37卷(第2期),第461-472页. * |
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| CN108442949A (en) | 2018-08-24 |
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