CN112538845A - Water-pumping energy-storage underground factory building entering traffic hole structure - Google Patents
Water-pumping energy-storage underground factory building entering traffic hole structure Download PDFInfo
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- CN112538845A CN112538845A CN202011364412.5A CN202011364412A CN112538845A CN 112538845 A CN112538845 A CN 112538845A CN 202011364412 A CN202011364412 A CN 202011364412A CN 112538845 A CN112538845 A CN 112538845A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a factory-entering traffic hole structure of a pumped storage underground workshop, belongs to the field of underground engineering, and provides the factory-entering traffic hole structure of the pumped storage underground workshop, which can enable a factory-entering traffic hole point to be closer to a lower workshop from the ground; including advancing factory traffic hole, the one end of advancing factory traffic hole is for advancing the hole point with permanent highway connection, and the other end of advancing factory traffic hole reaches the layer intercommunication with the vehicle of secret factory building, sets up the spiral and coils the hole section at the interlude of advancing factory traffic hole. According to the invention, the spiral winding tunnel section is arranged in the middle section of the factory-entering traffic tunnel, so that the factory-entering traffic tunnel can be arranged in a limited small-range area under the condition of achieving an effective road height difference, and the tunnel-entering point of the factory-entering traffic tunnel can be free from the limit of the distance from an underground factory building; therefore, the distance between the entering point of the entering traffic hole and the underground workshop is short, and operation and management are convenient.
Description
Technical Field
The invention relates to the field of underground engineering, in particular to a factory-entering traffic hole structure of a pumped storage underground workshop.
Background
With the large-scale development and utilization of new energy in China, the pumped storage power station is the most reliable, economic, long-life, large-capacity and mature-technology energy storage device in a power system, and is an important component part for the development of new energy. In the high mountain canyon region, the pumped storage power station power generation plant mostly adopts the arrangement form of underground plants.
The suction height of the pumped storage power station unit is high, and the installation height is far lower than the ground traffic height in a field. When designing a traffic hole entering a factory, the traffic hole entering the factory needs to be arranged for 2-3 km or even longer according to the highway gradient specification requirement. By adopting conventional arrangement, the point of entering the factory traffic tunnel is far away from the main construction area of the factory building, namely, the point of entering the factory traffic tunnel is far away from the corresponding position of the underground factory building, so that the operation and management are inconvenient.
Disclosure of Invention
The invention aims to provide a pump storage underground factory building entryway structure which can enable an entryway point of an entryway to be closer to a lower factory building.
The technical scheme adopted by the invention for solving the technical problems is as follows: pumped storage underground factory building advances factory's traffic hole structure, including advancing factory's traffic hole, the one end of advancing factory's traffic hole is for advancing the hole point with permanent highway connection, and the other end of advancing factory's traffic hole reaches the layer intercommunication with the vehicle of underground factory building, is provided with the spiral at the interlude of advancing factory's traffic hole and coils the hole section.
Further, the method comprises the following steps: the turning radius R of each part in the spirally wound hole section is equal.
Further, the method comprises the following steps: the turning radius R of each part in the spirally wound tunnel section is linearly increased or linearly decreased, so that the corresponding factory-entering traffic tunnels of adjacent layers in the vertical direction are distributed in a staggered manner.
Further, the method comprises the following steps: the slope ratio eta of the traffic hole is between 0.3 and 3 percent.
In addition, the invention also provides a design method of the factory-entering traffic hole structure of the pumped storage underground powerhouse, which comprises the following steps:
firstly, determining a unit installation elevation according to a unit suction height, a unit rated flow and a water level flow relation curve;
secondly, determining the height H1 of a generator layer according to the installation height of the unit, wherein the generator layer is a vehicle arrival layer of an underground workshop;
thirdly, selecting a hole entry point corresponding to the permanent road, and determining the road surface elevation H2 of the permanent road at the hole entry point;
fourthly, calculating the elevation difference H between the road surface elevation H2 and the generator layer elevation H1, namely H is H2-H1;
fifthly, calculating the total length L of the in-plant traffic hole, namely L is H/sin (arctan eta), wherein the slope ratio eta of the in-plant traffic hole is between 0.3% and 3%;
sixthly, arranging a spiral winding tunnel section in a limited area allowed by a factory area, and calculating a tunnel section length L1 corresponding to the spiral winding tunnel section, wherein L1 is the length obtained by subtracting the lengths of the tunnel sections at two ends of the spiral winding tunnel section from the total length L of the traffic tunnel entering the factory;
and seventhly, calculating to obtain the radius R and the number n of spiral turns of the spiral winding hole section.
Further, the method comprises the following steps: in the seventh step, according to L1 ═ 2n π R, the radius R of the spirally wound hole section and the number of spiral turns n are calculated.
Further, the method comprises the following steps: in the third step, the position of the permanent road closest to the underground powerhouse is taken as the hole entering point.
The invention has the beneficial effects that: according to the invention, the spiral winding tunnel section is arranged in the middle section of the factory-entering traffic tunnel, so that the factory-entering traffic tunnel can be arranged in a limited small-range area under the condition of achieving an effective road height difference, and the tunnel-entering point of the factory-entering traffic tunnel can be free from the limit of the distance from an underground factory building; therefore, the distance between the entering point of the entering traffic hole and the underground workshop is short, and operation and management are convenient.
Drawings
FIG. 1 is a plan view of a traffic hole in a factory according to the present invention;
FIG. 2 is a cross-sectional view of a traffic hole of the present invention;
labeled as: the system comprises a factory-entering traffic hole 1, a permanent road 2, a hole-entering point 3, an underground factory building 4, a spiral winding hole section 5, a unit installation elevation 6, a generator layer elevation H17 and a road surface elevation H28.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
It should be noted that, if there are directional indication terms, such as the terms of direction and orientation, above, below, left, right, front and back, in the present invention, for facilitating the description of the relative positional relationship between the components, the absolute position that is not the positional relationship between the related components and the components is specifically referred to, and is only used for explaining the relative positional relationship and the motion situation between the components in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly. When the present invention relates to a number, such as "a plurality", "several", etc., two or more than two are specifically referred to.
As shown in fig. 1 and fig. 2, the pumped storage underground factory building factory-entering traffic hole structure of the invention comprises a factory-entering traffic hole 1, wherein one end of the factory-entering traffic hole 1 is a hole-entering point 3 connected with a permanent highway 2, and the other end of the factory-entering traffic hole 1 is communicated with a vehicle arrival layer of an underground factory building 4, wherein a spiral coiled hole section 5 is arranged in the middle section of the factory-entering traffic hole 1; through the mode of spiral trend promptly for the interlude of entering factory traffic hole 1 realizes reaching the lift altitude requirement that satisfies the road in less within range relatively, reaches corresponding difference in elevation requirement promptly, so that the restriction of entering the hole point 3 of entering factory traffic hole 1 can not receive 4 distances of underground factory building, consequently can make the entering hole point 3 of entering factory traffic hole 1 near with 4 distances of underground factory building, and then convenient operation management.
More specifically, as for the spiral structural form of the spirally wound hole section 5, refer to the attached drawings, which are a specific structural schematic diagram, in order to set the turning radii R of each part in the spirally wound hole section 5 to be equal; namely, the turning radii of the spiral winding tunnel sections 5 of all layers are consistent; at this moment, the corresponding factory traffic holes 1 of the adjacent layers in the vertical direction are actually arranged in a stacked distribution mode, and in the structural mode, the holes of the adjacent layers need to be spaced by enough height difference to meet the structural strength of the foundation between the layers.
One more preferred scheme is: the turning radius R of each part in the spiral winding hole section 5 is linearly increased or linearly decreased, so that the corresponding entering-factory traffic holes 1 of adjacent layers in the vertical direction are distributed in a staggered manner; the holes of adjacent layers are distributed in a non-laminated manner, so that the structural strength of the foundation between layers can be improved, and the height difference between the holes of the adjacent layers can be shortened.
More specifically, the slope ratio eta of the traffic hole 1 is preferably between 0.3% and 3% in the invention; so that the traffic hole 1 is not in steep transition and is not beneficial to vehicle running. A specific η of 1% can be set, if specific.
In addition, the invention also provides a design method of the factory-entering traffic hole structure of the pumped storage underground powerhouse, which comprises the following steps:
firstly, determining a unit installation height 6 according to the unit suction height, the unit rated flow and a water level flow relation curve;
secondly, determining the height H17 of a generator layer according to the unit installation height 6, wherein the generator layer is a vehicle arrival layer of the underground powerhouse 4;
thirdly, selecting a hole entering point 3 corresponding to the permanent highway 2, and determining the road surface elevation H28 of the permanent highway 2 at the hole entering point 3;
fourthly, calculating the elevation difference H between the road surface elevation H28 and the generator layer elevation H17, namely H is H2-H1;
fifthly, calculating the total length L of the in-plant traffic hole 1, namely L is H/sin (arctan eta), wherein the slope ratio eta of the in-plant traffic hole 1 is between 0.3% and 3%;
sixthly, arranging a spiral winding tunnel section 5 in a limited area allowed by a factory area, and calculating a tunnel section length L1 corresponding to the spiral winding tunnel section 5, wherein L1 is the sum of the total length L of the traffic tunnel 1 entering the factory minus the lengths of the tunnel sections at two ends of the spiral winding tunnel section 5;
and seventhly, calculating to obtain the radius R and the spiral turns n of the spiral winding hole section 5.
And the first step and the second step can obtain corresponding data through reasonable calculation according to the actual design scheme of the underground plant. And the permanent road 2 in the third step can be obtained by measurement after reasonably selecting the hole entry point 3 according to the actual situation of the permanent road 2. Of course, when the specific position of the hole entering point 3 is selected, the position relatively close to the position corresponding to the underground plant 4 can be selected according to the actual condition of the project; as is the case with reference to the figures, the entry point 3 is taken approximately at the position of the permanent road 2 closest to the underground works 4.
In the fifth step, the value of η can be reasonably selected according to actual conditions, and then a relative total length L is obtained through calculation so as to be used as parameters for determining the corresponding radius R and the number n of spiral turns of the spiral winding hole section 5 through subsequent calculation. Of course, without loss of generality, when the radius R and the spiral turn number n are determined by subsequent calculation, if the calculation results of the radius R and the spiral turn number n are found to be infeasible, the appropriate value of η may be selected again and then the calculation may be performed again.
In addition, in the sixth step, as can be seen from the attached drawing, two sections of the spirally wound tunnel section 5 actually have a tunnel section approximately in a straight line section respectively and are connected with the permanent road 2 and the underground factory building 4 respectively, so when calculating the tunnel section length L1 corresponding to the spirally wound tunnel section 5, L1 is the total length L of the in-factory traffic tunnel 1 minus the lengths of the tunnel sections at the two ends of the spirally wound tunnel section 5.
In addition, in the seventh step, it is necessary to set the spiral wound tunnel section 5 in a limited area allowed by the factory floor, and the limited area allowed by the factory floor is determined according to the actual situation, and the maximum settable radius value of the spiral wound tunnel section 5 is limited by the limited area allowed by the factory floor, so that the finally determined radius R is required to be not larger than the maximum radius allowed by the limited area allowed by the factory floor. Certainly, when the radius R of the spirally wound hole section 5 is actually determined, a value is also required to be taken in combination with a corresponding road design specification, and the radius R is usually taken to be larger than the minimum value allowed by the design specification so as to ensure the driving safety of the road.
More specifically, in the case where the radius R of the spirally wound hole section 5 is a fixed value, the calculation of the seventh step may employ the following formula: l1 ═ 2n pi R, and the radius R and the number of turns n of the spiral coil in the hole section 5 were calculated.
Claims (7)
1. Pumped storage underground factory building advances factory traffic hole structure, including advancing factory traffic hole (1), the one end of advancing factory traffic hole (1) is for advancing hole point (3) of being connected with permanent highway (2), and the other end of advancing factory traffic hole (1) reaches layer intercommunication, its characterized in that with the vehicle of underground factory building (4): the middle section of the factory-entering traffic tunnel (1) is provided with a spiral winding tunnel section (5).
2. The pumped storage underground powerhouse entryway traffic hole structure of claim 1, wherein: the turning radius R of each part in the spirally wound hole section (5) is equal.
3. The pumped storage underground powerhouse entryway traffic hole structure of claim 1, wherein: the turning radius R of each part in the spiral winding hole section (5) is linearly increased or linearly reduced, so that the corresponding factory-entering traffic holes (1) of adjacent layers in the vertical direction are distributed in a staggered mode.
4. The pumped storage underground powerhouse entryway traffic hole structure of any one of claims 1 to 3, wherein: the slope ratio eta of the traffic hole (1) is between 0.3 and 3 percent.
5. The design method of the pumped storage underground powerhouse in-factory traffic hole structure as claimed in any one of claims 1 to 4, wherein: the method comprises the following steps:
firstly, determining a unit installation height (6) according to the unit suction height, the unit rated flow and a water level flow relation curve;
secondly, determining the height H1(7) of a generator layer according to the unit installation height (6), wherein the generator layer is a vehicle arrival layer of the underground powerhouse (4);
thirdly, selecting a hole entering point (3) corresponding to the permanent road (2), and determining the road surface elevation H2(8) of the permanent road (2) at the hole entering point (3);
fourthly, calculating the elevation difference H between the road surface elevation H2(8) and the generator layer elevation H1(7), namely H is H2-H1;
fifthly, calculating the total length L of the in-plant traffic hole (1), namely L is H/sin (arctan eta), wherein the value of the slope ratio eta of the in-plant traffic hole (1) is between 0.3% and 3%;
sixthly, arranging a spiral winding tunnel section (5) in a limited area allowed by a factory area, and calculating a tunnel section length L1 corresponding to the spiral winding tunnel section (5), wherein L1 is the sum of the total length L of the traffic tunnel (1) entering the factory minus the lengths of the tunnel sections at the two ends of the spiral winding tunnel section (5);
and seventhly, calculating to obtain the radius R and the number n of spiral turns of the spiral winding hole section (5).
6. The design method of the pumped storage underground powerhouse entryway traffic hole structure of claim 5, wherein the method comprises the following steps: in the seventh step, the radius R and the number of turns n of the spiral coil of the hole section (5) are calculated from L1 ═ 2n pi R.
7. The design method of the pumped storage underground powerhouse entryway traffic hole structure of claim 5, wherein the method comprises the following steps: in the third step, the hole entering point (3) is the position where the permanent road (2) is closest to the underground factory building (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364412.5A CN112538845A (en) | 2020-11-27 | 2020-11-27 | Water-pumping energy-storage underground factory building entering traffic hole structure |
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| CN202011364412.5A CN112538845A (en) | 2020-11-27 | 2020-11-27 | Water-pumping energy-storage underground factory building entering traffic hole structure |
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| CN112538845A true CN112538845A (en) | 2021-03-23 |
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