CN107326927B - Shock-absorbing underground pipeline tunnel and construction method thereof - Google Patents
Shock-absorbing underground pipeline tunnel and construction method thereof Download PDFInfo
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- CN107326927B CN107326927B CN201710640377.7A CN201710640377A CN107326927B CN 107326927 B CN107326927 B CN 107326927B CN 201710640377 A CN201710640377 A CN 201710640377A CN 107326927 B CN107326927 B CN 107326927B
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- layer structure
- inner layer
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- outer layer
- damping
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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
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/146—Springs
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a shock-absorbing underground pipeline tunnel and a construction method thereof; the shock-absorbing underground pipeline tunnel consists of a plurality of unit tunnel sections which are connected in sequence, wherein each unit tunnel section consists of an outer layer structure and an inner layer structure; a damping buffer space is formed between the outer layer structure and the inner layer structure, a buffer support is arranged in the damping buffer space, one end of the buffer support is connected with the inner layer structure, and the other end of the buffer support is connected with the outer layer structure; damping liquid is filled in the damping buffer space. The construction method comprises the steps of prefabricating an outer layer structure and an inner layer structure respectively; coating an impermeable layer on the outer layer structure and the inner layer structure; the inner layer structure and the outer layer structure are connected and combined together by utilizing a buffer support; sealing openings at two ends of the damping buffer space by adopting water stop rubber; filling damping liquid into the damping buffer space to finish the construction of the tunnel section of the unit; the completed unit tunnel sections are sequentially connected to form a shock-absorbing underground pipeline tunnel capable of absorbing seismic energy.
Description
Technical Field
The invention relates to the design and construction technology of pipeline tunnels, in particular to the design and construction of an underground pipeline tunnel capable of absorbing seismic energy and reducing shock impact, and specifically relates to a shock-absorbing underground pipeline tunnel and a construction method thereof.
Background
The underground pipeline tunnel is a pipeline tunnel buried underground, and the underground pipeline tunnel in the prior art is rigid in design and lacks the capability of elastic buffering deformation, so that the underground pipeline tunnel is affected by factors such as vehicles, construction and the like, and is easy to damage after shock impact. Such damage can cause damage to the tunnel as a whole and, in severe cases, to the pipeline within the pipeline tunnel. It is therefore desirable to design a new pipeline tunnel so that the pipeline within the tunnel is better protected.
Disclosure of Invention
Aiming at the current state of the art, the invention provides the shock-absorbing underground pipeline tunnel and the construction method thereof, which have simple structure and reasonable design and can protect the safety of the tunnel and the pipeline by absorbing the earthquake energy.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a shock-absorbing underground pipeline tunnel consists of a plurality of unit tunnel sections which are connected in sequence, wherein each unit tunnel section is formed by combining an outer layer structure positioned on an outer layer and an inner layer structure positioned in the outer layer structure; a closed-loop damping buffer space is formed between the outer layer structure and the inner layer structure, a plurality of buffer supports which absorb the vibration energy of the tunnel in an elastic telescopic mode are distributed in the damping buffer space along the whole circumference of the inner layer structure, one end of each buffer support is fixedly connected to the outer circumferential surface of the inner layer structure, and the other end of each buffer support is fixedly connected to the inner circumferential surface of the outer layer structure; damping liquid which plays a damping effect through flowing when relative displacement is generated between the outer layer structure and the inner layer structure under the action of earthquake is filled in the damping buffer space.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the buffer support consists of an upper spring fixing plate, a lower spring fixing plate and two buffer springs; the two buffer springs are arranged in parallel; one end of the two ends of the buffer spring is welded and fixed on the upper spring fixing plate, and the other end of the two ends of the buffer spring is welded and fixed on the lower spring fixing plate; the upper spring fixing plate of the buffer support is fixedly connected to the outer peripheral surface of the inner layer structure, and the lower spring fixing plate of the buffer support is fixed to the inner peripheral surface of the outer layer structure.
Ten buffer supports are distributed in the damping buffer space along the whole circumference of the inner layer structure; the mounting positions of the ten buffer supports are as follows: the buffer support is respectively installed at the bottom edge center of the inner layer structure and the top edge center of the inner layer structure, the buffer support is respectively installed at the position, close to the left lower corner, of the bottom edge of the inner layer structure and the position, close to the right lower corner, of the inner layer structure, the buffer support is respectively installed at the position, close to the left lower corner, of the left side edge of the inner layer structure and the position, close to the right lower corner, of the right side edge of the inner layer structure, and the buffer support is respectively installed at the position, close to the right upper corner, of the inner layer structure, close to the right lower corner, of the left upper corner of the inner layer structure, and the buffer support is obliquely installed at 45 degrees.
The ten buffer supports form a buffer ring arranged in the buffer space, and at least one buffer ring is arranged in the buffer space of each unit tunnel section.
The filling height of the damping liquid in the damping buffer space is 2/3 of the height of the damping buffer space.
The damping liquid is benzyl silicone oil.
And the inner peripheral surface of the outer layer structure and the outer peripheral surface of the inner layer structure are respectively provided with an impermeable layer for preventing damping liquid from leaking.
The impermeable layer is formed by impermeable materials coated on the inner peripheral surface of the outer layer structure and the outer peripheral surface of the inner layer structure, and the impermeable materials are resin.
Both ends that lie in shock attenuation buffer space in foretell unit tunnel section all are provided with the stagnant water rubber that prevents damping fluid appearance.
The invention also provides a construction method of the shock-absorbing underground pipeline tunnel, which comprises the following steps:
a. respectively prefabricating an outer layer structure and an inner layer structure with a certain length;
b. coating a layer of resin on the inner peripheral surface of the prefabricated outer layer structure and the outer peripheral surface of the inner layer structure, so that the resin forms an impermeable layer on the inner peripheral surface of the outer layer structure and the outer peripheral surface of the inner layer structure;
c. the inner layer structure is sleeved in the outer layer structure, then the inner layer structure and the outer layer structure are connected and combined together by utilizing the buffer support, and a closed-loop damping buffer space is formed between the outer layer structure and the inner layer structure;
d. sealing the openings at two ends of the damping buffer space by adopting water stop rubber; the damping buffer space forms a closed space of a closed loop;
e. filling benzyl silicone oil serving as damping liquid into the damping buffer space through a filling opening arranged at the top of the outer layer structure, and controlling the filling height of the benzyl silicone oil to be 2/3 of the height of the damping buffer space; completing construction of the unit tunnel section;
f. and connecting the completed unit tunnel sections in sequence to form the shock absorption type underground pipeline tunnel capable of absorbing the seismic energy.
Compared with the prior art, the underground pipeline tunnel consists of a plurality of unit tunnel sections, each unit tunnel section is formed by combining an inner layer structure and an outer layer structure, the aim of absorbing earthquake energy can be fulfilled by a buffer support arranged between the outer layer structure and the inner layer structure, and particularly, damping liquid is filled in a damping buffer space formed between the outer layer structure and the inner layer structure, and the filling height of the damping liquid is 2/3 of the height of the damping buffer space; therefore, under the action of an earthquake, when the underground pipeline tunnel vibrates to enable the outer layer structure and the inner layer structure to generate relative displacement, the filled damping liquid can flow in the damping buffer space, so that an effect similar to that of a damper can be generated, most of earthquake energy is absorbed, the effect of protecting the inner layer structure is achieved, and the underground pipeline in the inner layer structure is protected. The invention has reasonable design, simple structure, convenient construction and high efficiency, and can better protect the safety of underground pipelines.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional block diagram of a tunnel segment of a unit of the present invention;
fig. 3 is a schematic view of the structure of the buffering support of fig. 2.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Wherein the reference numerals are as follows: the unit tunnel section 1, the damping buffer space 1a, the outer layer structure 11, the inner layer structure 12, the buffer support 2, the upper spring fixing plate 21, the lower spring fixing plate 22, the buffer spring 23, the damping liquid 3, the impermeable layer 4 and the water stop rubber 5.
Fig. 1 to 3 are schematic views of the structure of the present invention, and as shown in the drawings, a shock-absorbing underground pipeline tunnel of the present invention is composed of a plurality of sequentially connected unit tunnel segments 1, each unit tunnel segment 1 is composed of an outer layer structure 11 positioned at the outer layer and an inner layer structure 12 positioned in the outer layer structure 11; a closed-loop damping buffer space 1a is formed between the outer layer structure 11 and the inner layer structure 12, a plurality of damping supports 2 which absorb the vibration energy of the tunnel in an elastic telescopic manner are distributed in the damping buffer space 1a along the whole circumference of the inner layer structure 12, one end of each damping support 2 is fixedly connected with the outer circumferential surface of the inner layer structure 12, and the other end of each damping support 2 is fixedly connected with the inner circumferential surface of the outer layer structure 11; the damping buffer space 1a is filled with a damping liquid 3 which plays a damping effect by flowing when a relative displacement is generated between the outer layer structure 11 and the inner layer structure 12 under the action of an earthquake.
The sections of the outer layer structure 11 and the inner layer structure 12 are rectangular frame structures, and the upper left corner and the upper right corner of the outer layer structure 11 and the upper left corner and the upper right corner of the inner layer structure 12 have a smear angle of 45 degrees. The top of the outer layer structure 11 is provided with a filling port for filling damping liquid 3, and the filling port is provided with a filling port sealing device.
The outer layer structure 11 and the inner layer structure 12 are elastically connected through the buffer support 2, so that when the pipeline tunnel of the invention is vibrated under the action of an earthquake, part of earthquake energy can be absorbed through the elastic deformation of the buffer support 2; in addition, the damping liquid 3 filled in the damping buffer space flows due to the relative displacement between the outer layer structure 11 and the inner layer structure 12, so that the damping buffer can produce an effect similar to a damper, absorb most of earthquake energy, and play a role in protecting the inner layer structure 12, so that the underground pipeline in the inner layer structure 12 is protected.
For further optimizing the present invention, in the embodiment shown in fig. 3, the cushion support 2 of the present invention is composed of an upper spring fixing plate 21, a lower spring fixing plate 22, and two cushion springs 23; the two buffer springs 23 are arranged in parallel; one of the two ends of the buffer spring 23 is welded and fixed on the inner plate surface of the upper spring fixing plate 21, and the other of the two ends of the buffer spring 23 is welded and fixed on the inner plate surface of the lower spring fixing plate 22; the outer plate surface of the upper spring fixing plate 21 of the buffer support 2 is fixedly connected to the outer peripheral surface of the inner layer structure 12, and the outer plate surface of the lower spring fixing plate 22 of the buffer support 2 is fixed to the inner peripheral surface of the outer layer structure 11.
In the embodiment, ten buffer supports 2 are distributed in the buffer space 1a along the whole circumferential direction of the inner layer structure 12; the mounting positions of the ten buffer supports 2 are as follows: the buffer support 2 is respectively arranged at the bottom edge center of the inner layer structure 12 and the top edge center of the inner layer structure 12, the buffer support 2 is respectively arranged at the position, close to the left lower corner, of the bottom edge of the inner layer structure 12 and the position, close to the right lower corner, of the inner layer structure 12, the buffer support 2 is respectively arranged at the position, close to the left lower corner, of the left side edge of the inner layer structure 12 and the position, close to the right lower corner, of the right side edge of the inner layer structure 12, and the buffer support 2 is respectively arranged at the position, close to the left upper corner of the inner layer structure 12 and the right upper corner of the inner layer structure 12, of 45 degrees in an inclined manner. The key principle of the installation of the cushion support 2 is in the lower left and lower right corners.
In the embodiment, ten buffer supports 2 form a buffer ring arranged in the buffer space 1a, and at least one buffer ring is arranged in the buffer space 1a of each unit tunnel section 1. The unit tunnel segment 1 has a certain length, and the number of buffer rings should be set according to the length of the unit tunnel segment 1. The two ends of the unit tunnel section 1, which are positioned in the damping buffer space 1a, are provided with water stop rubber 5 for preventing damping liquid 3 from leaking. Of course, when the unit tunnel section 1 is relatively excessively long, the water stop rubber 5 may be provided in the unit tunnel section 1 to divide the damper space 1a in the unit tunnel section 1 into a plurality of small damper spaces.
In the embodiment, the filling height of the damping liquid 3 in the damping buffer space 1a is 2/3 of the height of the damping buffer space 1 a.
The damping liquid 3 is benzyl silicone oil.
The inner peripheral surface of the outer layer structure 11 and the outer peripheral surface of the inner layer structure 12 are provided with a impervious layer 4 for preventing the shock absorbing liquid 3 from leaking. The barrier layer 4 is formed of a barrier material, which is a resin, coated on the inner peripheral surface of the outer layer structure 11 and coated on the outer peripheral surface of the inner layer structure 12.
The invention also provides a construction method of the shock-absorbing underground pipeline tunnel, which comprises the following steps:
a. respectively prefabricating an outer layer structure 11 and an inner layer structure 12 with a certain length;
b. coating a layer of resin on the inner peripheral surface of the prefabricated outer layer structure 11 and the outer peripheral surface of the inner layer structure 12, so that the resin forms an impermeable layer 4 on the inner peripheral surface of the outer layer structure 11 and the outer peripheral surface of the inner layer structure 12;
c. the inner layer structure 12 is sleeved in the outer layer structure 11, then the inner layer structure 12 and the outer layer structure 11 are connected and combined together by the buffer support 2, and a closed-loop damping buffer space 1a is formed between the outer layer structure 11 and the inner layer structure 12;
d. sealing the openings at the two ends of the damping buffer space 1a by adopting water stop rubber 5; the damping buffer space 1a forms a closed space of a closed loop;
e. filling benzyl silicone oil into the damping buffer space 1a through a filling opening arranged at the top of the outer layer structure 11 to serve as damping liquid 3, and controlling the filling height of the benzyl silicone oil to be 2/3 of the height of the damping buffer space 1a; completing construction of the unit tunnel section 1;
f. the completed unit tunnel sections 1 are sequentially connected to form a shock-absorbing underground pipeline tunnel capable of absorbing seismic energy.
According to the shock-absorbing underground pipeline tunnel, under the action of an earthquake, the underground pipeline tunnel vibrates, the buffer springs in the buffer support deform, and part of earthquake energy can be absorbed by the buffer springs. Meanwhile, the outer layer structure and the inner layer structure generate relative displacement, benzyl silicone oil between the outer layer structure and the inner layer structure flows, the effect similar to that of a damper can be generated, most of earthquake energy is absorbed, the inner layer structure is protected, and therefore underground pipelines in the inner layer structure are protected.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention.
Claims (4)
1. A construction method of a shock-absorbing underground pipeline tunnel, which is applied to the shock-absorbing underground pipeline tunnel, is characterized in that: the tunnel consists of a plurality of unit tunnel sections which are connected in sequence, and each unit tunnel section (1) is formed by combining an outer layer structure (11) positioned at the outer layer and an inner layer structure (12) positioned in the outer layer structure (11); a closed-loop damping buffer space (1 a) is formed between the outer layer structure (11) and the inner layer structure (12), a plurality of buffer supports (2) which absorb the vibration energy of the tunnel in an elastic telescopic mode are distributed in the damping buffer space (1 a) along the whole circumference of the inner layer structure (12), one end of each buffer support (2) is fixedly connected to the outer circumferential surface of the inner layer structure (12), and the other end of each buffer support (2) is fixedly connected to the inner circumferential surface of the outer layer structure (11); damping liquid (3) which plays a damping effect through flowing when relative displacement is generated between the outer layer structure (11) and the inner layer structure (12) under the action of an earthquake is filled in the damping buffer space (1 a); the construction method specifically comprises the following steps:
a. respectively pre-forming an outer layer structure (11) and an inner layer structure (12) with lengths;
b. coating a layer of resin on the inner peripheral surface of the prefabricated outer layer structure (11) and the outer peripheral surface of the inner layer structure (12) so that the resin forms an impermeable layer (4) on the inner peripheral surface of the outer layer structure (11) and the outer peripheral surface of the inner layer structure (12);
c. the inner layer structure (12) is sleeved in the outer layer structure (11), then the inner layer structure (12) and the outer layer structure (11) are connected and combined together by utilizing the buffer support (2), and a closed-loop shock absorption buffer space (1 a) is formed between the outer layer structure (11) and the inner layer structure (12);
d. sealing openings at two ends of the damping buffer space (1 a) by adopting water stop rubber (5); the damping buffer space (1 a) forms a closed space of a closed loop;
e. filling benzyl silicone oil serving as damping liquid (3) into the damping buffer space (1 a) through a filling opening arranged at the top of the outer layer structure (11), and controlling the filling height of the benzyl silicone oil to be 2/3 of the height of the damping buffer space (1 a); finishing the construction of the unit tunnel section (1);
f. the completed unit tunnel sections (1) are sequentially connected to form the shock-absorbing underground pipeline tunnel capable of absorbing seismic energy.
2. The construction method of the shock-absorbing underground pipeline tunnel according to claim 1, characterized by comprising the following steps: the buffer support (2) consists of an upper spring fixing plate (21), a lower spring fixing plate (22) and two buffer springs (23); the two buffer springs (23) are arranged in parallel; one end of the two ends of the buffer spring (23) is welded and fixed on the upper spring fixing plate (21), and the other end of the two ends of the buffer spring (23) is welded and fixed on the lower spring fixing plate (22); the upper spring fixing plate (21) of the buffer support (2) is fixedly connected to the outer peripheral surface of the inner layer structure (12), and the lower spring fixing plate (22) of the buffer support (2) is fixed to the inner peripheral surface of the outer layer structure (11).
3. The construction method of the shock-absorbing underground pipeline tunnel according to claim 2, characterized by comprising the following steps: ten buffer supports (2) are distributed in the damping buffer space (1 a) along the whole circumference of the inner layer structure (12); the ten mounting positions of the buffer support (2) are as follows: the buffer support seat (2) is respectively arranged at the bottom edge center of the inner layer structure (12) and the top edge center of the inner layer structure (12), the buffer support seat (2) is respectively arranged at the position, close to the left lower corner, of the bottom edge of the inner layer structure (12) and the position, close to the right lower corner, of the inner layer structure (12), the buffer support seat (2) is respectively arranged at the position, close to the left lower corner, of the left side edge of the inner layer structure (12) and the position, close to the right lower corner, of the right side edge of the inner layer structure (12), and the buffer support seat (2) is respectively arranged at the position, close to the right upper corner, of the inner layer structure (12) and the right upper corner of the inner layer structure (12) in an inclined 45-degree manner.
4. The construction method of the shock-absorbing underground pipeline tunnel according to claim 3, wherein the construction method comprises the following steps: ten buffer supports (2) form a buffer ring arranged in the buffer space (1 a), and at least one buffer ring is arranged in the buffer space (1 a) of each unit tunnel section (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710640377.7A CN107326927B (en) | 2017-07-31 | 2017-07-31 | Shock-absorbing underground pipeline tunnel and construction method thereof |
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| CN201710640377.7A CN107326927B (en) | 2017-07-31 | 2017-07-31 | Shock-absorbing underground pipeline tunnel and construction method thereof |
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| CN107326927A CN107326927A (en) | 2017-11-07 |
| CN107326927B true CN107326927B (en) | 2023-09-29 |
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Families Citing this family (4)
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| CN108951703A (en) * | 2018-08-17 | 2018-12-07 | 金陵科技学院 | Assembled underground pipe gallery and its construction method |
| CN111425225B (en) * | 2020-05-28 | 2022-02-11 | 石家庄铁道大学 | Be applied to subway tunnel's earthquake protector and subway tunnel supporting system |
| CN113186803A (en) * | 2021-06-04 | 2021-07-30 | 中国电建集团成都勘测设计研究院有限公司 | Aqueduct structure and construction method thereof |
| CN114991290A (en) * | 2022-07-22 | 2022-09-02 | 福建永福电力设计股份有限公司 | Infiltration-preventing water collecting well and manufacturing method thereof |
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