CN114277843A - Underground passage structure and construction method - Google Patents
Underground passage structure and construction method Download PDFInfo
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- CN114277843A CN114277843A CN202210009622.5A CN202210009622A CN114277843A CN 114277843 A CN114277843 A CN 114277843A CN 202210009622 A CN202210009622 A CN 202210009622A CN 114277843 A CN114277843 A CN 114277843A
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention discloses an underground passage structure and a construction method, which solve the problems of large earth covering load, large span at an intersection, narrow internal space of the structure, difficult connection with surrounding buildings and poor ventilation condition in the prior art, and have the beneficial effects of reducing earth covering load, reducing road intersection span and increasing internal space of the structure, and the specific scheme is as follows: the utility model provides an underground passage structure, includes the first underground road that forms through frame construction, first pipeline passageway and first ventilation channel are set up to first underground road top, the roof of first underground road is as the bottom plate of first pipeline passageway and first ventilation channel, first underground road has exit intersection, exit intersection is located central island region sets up a plurality of knee walls within the lane sideline, the top of each knee wall is connected with the roof of first underground road, the bottom is connected with the bottom plate of first underground road.
Description
Technical Field
The invention relates to the technical field of construction engineering, in particular to an underground passage structure and a construction method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the enlargement of the urban scale and the acceleration of the urbanization process, the contradiction between the urban development and the limited construction space is more and more strong, wherein the reasonable utilization of the underground space becomes an important way for solving the contradiction. The development of underground space is not only the development trend of the world but also an index for measuring the modernization of a city. The underground passage structure has the advantages of good anti-seismic performance, relatively constant temperature and the like. As a new underground structure, underground roads are increasingly present in areas with dense buildings, large traffic volumes and many underground pipelines, such as urban core areas and central business areas. Underground roads generally adopt reinforced concrete frame structures;
the inventor finds that the existing underground structure has the technical problems of deep embedment, large earth covering load, large span at the intersection, narrow internal space of the structure, difficult connection with surrounding buildings, poor ventilation condition and the like.
Disclosure of Invention
The invention aims to provide an underground passage structure and a construction method, aiming at overcoming the technical problems of deep embedment, large earthing load, large span at an intersection, narrow internal space of the structure, difficult connection with peripheral buildings and poor ventilation condition in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an underground passage structure comprises a first underground passage formed by a frame structure and used for travelling cranes, wherein a first pipeline passage and a first ventilation passage are arranged above the first underground passage, and the top plate of the first underground passage is used as the bottom plate of the first pipeline passage and the first ventilation passage;
the underground passage structure further comprises a second underground passage connected with the first underground passage, the second underground passage is also used for driving vehicles, second pipeline passages and/or second ventilation passages are arranged on two sides of the second underground passage, a plurality of underground spaces are arranged above the second underground passage, the second pipeline passages and the second ventilation passages, the second pipeline passages are communicated with the first pipeline passages, and the second ventilation passages are communicated with the first ventilation passages;
the underground passage has an entrance intersection as a first intersection, a plurality of support walls are arranged in a central island area located within a lane side line of the first intersection, the top end of each support wall is connected with a top plate of the first intersection, and the bottom end of each support wall is connected with a bottom plate of the first intersection.
According to the underground passage structure, a plurality of support walls form a circle of continuous closed wall body so as to ensure the reliable support of the top plate of the entrance/exit intersection, and the partition plates are arranged on the inner sides of the support walls and used as a management room or a tool room and the like.
In order to enhance the structural integrity and effectively transfer the load of a top plate, the underground passage structure is provided with support columns at the intersection positions of two adjacent support walls, the support columns are connected with the support walls, and the support columns are connected with the support walls in a concealed column mode;
a first hidden beam is arranged at the first intersection, one end of the first hidden beam is connected with the supporting wall, and the other end of the first hidden beam is connected with the side wall of the lane sideline of the entrance/exit intersection.
According to the underground passage structure, in order to improve the supporting force of the top plate at the first intersection, the thickness of the top plate at the first intersection is larger than that of the top plate at the non-inlet/outlet intersection of the underground passage.
According to the underground passage structure, the plurality of cavities are formed in the top plate of the first intersection so as to ensure the bearing capacity of the top plate of the underground passage and reduce the dead weight at the same time.
Garage intersections arranged between the first underground passage and the underground space and between the second underground passage and the underground space are second intersections.
According to the underground passage structure, the second intersection is in a diamond shape, each end part of the diamond shape of the second intersection is provided with an opening, an upturned beam is arranged in the second intersection and is connected with the side walls on two adjacent sides of the second intersection, second hidden beams are respectively arranged between the upturned beams and between two adjacent sides of the second intersection, and the second hidden beams are perpendicular to the upturned beams;
and a third hidden beam is arranged in the maximum span direction of the second intersection, the third hidden beam is parallel to the second hidden beam, fourth hidden beams are further arranged at the two ends of the third hidden beam, and the two ends of each fourth hidden beam are fixedly connected with the side wall of the second intersection.
According to the underground passage structure, the upright post used for supporting the upturning beam is further arranged in the second intersection, the bottom end of the upright post is supported by the bottom plate of the second intersection, the top end of the upright post is connected with the upturning beam, the stress of the upright post is large, and the bottom plate is locally reinforced to meet the requirements of anti-impact cutting checking calculation.
According to the underground passage structure, the second intersection is provided with the temporary plug, and the temporary plug is connected with the second intersection in a settlement joint mode;
adopting an externally-bonded waterproof coiled material and a back-bonded rubber waterstop at the settlement joint recently, and embedding the waterstop at a second intersection and wrapping for protection; and (5) dismantling the temporary plug when the underground space structure is constructed, and burying the other end of the water stop into the later-stage cast-in-place structure.
In a second aspect, the present invention further provides a construction method of an underground passage structure, including the following steps:
excavating a soil body, and forming a first underground road through a frame structure;
the first underground road is provided with an entrance and exit intersection, and a support wall is constructed at the entrance and exit intersection to support a top plate of the first underground road;
constructing a first pipeline channel and a first ventilation channel above a first underground road;
backfilling two sides and the top of the first underground road, backfilling the two sides by using lime soil, and backfilling the part above the top plate by using lightweight concrete;
the top parts of the first pipeline channel and the first ventilation channel are backfilled, and the backfilling is performed by adopting a light material, so that the backfilling load on the top plates of the first pipeline channel and the first ventilation channel is effectively reduced.
The beneficial effects of the invention are as follows:
1) according to the invention, the first pipeline channel and the first ventilation channel are arranged above the first underground road, so that the thickness and load of the soil covering above the top of the underground channel are reduced; the top plate of the first underground road is used as the bottom plate of the first pipeline channel and the first ventilation channel, the structure of the first underground road is fully utilized, and the construction period is effectively shortened.
2) In the invention, the first intersection is large in structural span, and the top plate of the first intersection can be effectively supported by the support wall through the support wall arranged at the first intersection; the continuous closed wall body formed by multiple strong supports fully ensures the reliable support of the top plate of the first intersection.
3) The first intersection is provided with the plurality of cavities inside the top plate, so that the self weight is reduced while the bearing capacity is ensured.
4) According to the invention, through the arrangement of the second intersection, the communication with the underground space can be realized, the problem of the arrival and the departure of vehicles in the surrounding plots is solved, and the parking resource sharing is realized;
5) the hidden beams are arranged at the first intersection and the second intersection, so that the stability of the structure arrangement of the first intersection is further ensured, the bearing capacity of the structure is enhanced, and the requirement of clearance of an underground passage is met; the upturning beam is arranged at the first intersection, so that the arrangement of part of the second hidden beams is ensured, and the upturning beam can meet the structural stress requirement and does not occupy the internal space of the underground passage.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a top plan view of the present invention entering a first intersection;
FIG. 2 is a plan view of a second intersection of the present invention;
FIG. 3 is a cross-sectional view of a first subterranean passageway of the present invention;
FIG. 4 is a cross-sectional view of a second subterranean passageway in accordance with the invention;
FIG. 5 is a bottom plan view of a garage intersection of the present invention;
FIG. 6 is a recent waterproof design view of a garage intersection of the present invention;
FIG. 7 is a design drawing of the garage intersection for long-term waterproofing;
FIG. 8 is a top plate cavity layout of the present invention;
FIG. 9 is a vent layout of the present invention;
in the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the device comprises air bubble mixed light soil, 2 planting soil, 3, 2:8 lime soil, 4, a first pipeline channel, 5, a first ventilation channel, 6, an underground commercial space, 7, a hidden beam, 8, an upturning beam, 9, a stand column, 10, a local thickening layer, 11, a temporary plug, 12, an externally-attached waterproof coiled material, 13, a back-attached rubber water stop, 14, an embedded steel edge water stop, 15, a tinplate, 16, a supporting wall, 17, a door opening, 18, an emergency article storage area, 19, a cleaning tool storage area, 20, a supporting column, 21, a top plate cavity, 22 and a first underground channel.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. 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 invention 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 invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
as introduced by the background technology, the underground structure in the prior art has the problems of deep embedment, large earth covering load, large span at an intersection, narrow internal space of the structure, difficult connection with surrounding buildings and poor ventilation condition.
Example one
In an exemplary embodiment of the present invention, referring to fig. 3, an underground passage structure includes a first underground passage 22 formed by a frame structure, a first pipeline passage 4 and a first ventilation passage 5 are provided above the first underground passage 22, and a ceiling of the first underground passage serves as a floor of the first pipeline passage 4 and the first ventilation passage 5;
specifically, the first pipeline channel 4 is used for arranging underground pipelines, the first ventilation channel 5 is used for ventilation of underground channels, the net size of the first pipeline channel 4 in the embodiment is 3x3.6m, the net size of the first ventilation channel 5 is 4.7x3.6m, the side wall thickness of the channel is 40cm, and the top plate thickness is 45 cm;
referring to fig. 1 and 8, the first underground passage has a first intersection, the first intersection is a three-way entrance intersection for vehicle driving, the intersection is influenced by a main turning radius and entrance and exit ramps, the structural span of the intersection is large, a plurality of support walls 16 are arranged in a central island area within a lane side line at the first intersection, the top end of each support wall 16 is connected with a top plate of the first underground passage and shares the same top plate with the first underground passage, the bottom end of each support wall is connected with a bottom plate of the first underground passage, a circle of continuous closed wall bodies are formed by a plurality of support walls 16 to ensure reliable support of the top plate of the first underground passage, and partition plates can be arranged on the inner side of each support wall to form an independent partition for a management room or a tool room.
Specifically, the emergency article storage area 18 and the cleaning tool storage area 19 of the underground road can be formed by adding a door opening 17 to the support wall.
It can be understood that, in order to solve the problem that the intersection span is big, the roof thickness in the first intersection within range needs to be suitably increased, can increase to 1.5m from 1.0m of standard section, and behind the roof thickness increase, set up a plurality of roof cavities 21 in the roof inside of first intersection, the purpose is reducing the dead weight when guaranteeing first underground road bearing capacity.
In some examples, cylindrical cavities 21 with a diameter of 0.9m may be provided in the top plate, with a clear distance of 0.4m, and a top and bottom thickness of 0.3m at the top, and 22 circular cavities in the region of larger span.
Referring to fig. 1, in order to enhance structural integrity and effectively transfer roof loads, a supporting column 20 is arranged at an intersection position of two adjacent supporting walls, the supporting column 20 is connected with a supporting wall 16, a hidden beam 7 is arranged at a position with a large span at an entrance/exit intersection, the hidden beam 7 comprises a first hidden beam, a second hidden beam, a third hidden beam and a fourth hidden beam according to different supporting positions, one end of the first hidden beam is connected with the supporting wall 16, the other end of the first hidden beam is connected with a side wall of a lane boundary of a first intersection, and the first hidden beam is also arranged at the first intersection and connected with side walls of lane boundaries at two sides; the thickness of the top plate at the first intersection is larger than that of the top plate at the non-inlet/outlet intersection of the underground passage, so that the supporting force of the top plate at the inlet/outlet intersection is improved.
In some examples, the support posts are polygonal in cross-section, with a cross-sectional area of about 5.9m2The support column is arranged by a longitudinal main reinforcement and a stirrup.
Referring to fig. 2 and 4, the underground passage structure further includes a second underground road connected to the first underground passage, wherein second pipeline passages and/or second ventilation passages are arranged on two sides of the second underground road, and have the same function as the second pipeline passages and/or the second ventilation passages, a plurality of underground spaces are arranged above the second underground road, the second pipeline passages and the second ventilation passages, the second pipeline passages are communicated with the first pipeline passages, and the second ventilation passages are communicated with the first ventilation passages;
garage intersections are arranged between the first underground road and the underground space and between the second underground road and the underground space, and particularly garage intersections formed by connecting an underground road main line and underground parking lots in peripheral plots.
It is understood that the first underground road and the second underground road are used for driving, and the arrangement of the pipeline passage and the ventilation passage around the first underground road and the second underground road is different.
The garage intersection is in a diamond shape, each end of the garage intersection is provided with an opening, an upturning beam 8 is arranged in the garage intersection according to a calculated force transmission path, the upturning beam 8 is used as a main stress component of the garage intersection, the beam height is 4.0m, the beam width is 1.6m, the upturning beam is connected with the side walls of the roads on two adjacent sides of the garage intersection, second hidden beams are respectively arranged between the upturning beams and between two adjacent sides of the garage intersection, and the second hidden beams are perpendicular to the upturning beams;
a third hidden beam is arranged in the direction of the maximum span of the garage intersection, the third hidden beam is parallel to the second hidden beam, fourth hidden beams are further arranged at two ends of the third hidden beam, and two ends of each fourth hidden beam are fixedly connected with the side wall of the garage intersection road respectively; in this embodiment, the third hidden beam has the largest span and the longest length, the third hidden beam is also vertically arranged with the upturned beam, the width of the hidden beam is 1.0m, and the height of the beam is 1.0m as thick as the top plate.
Referring to fig. 4, according to the general plan of the underground space in the area, facilities such as an underground commercial space 6 and an underground pedestrian passageway are arranged above the second underground road and are combined with the underground road, a pipeline passageway and a ventilation passageway structure for construction, the underground commercial building is positioned above the underground road, the net height of the building is 4.5m, and the arrangement of the column network is adjusted according to the side wall of the underground road and the position of the column network.
Referring to fig. 2 and 5, a vertical column 9 for supporting an upturning beam is further arranged in the garage intersection, the bottom end of the vertical column 9 is supported by a bottom plate at the garage intersection, the top end of the vertical column is connected with the upturning beam 8, the vertical column is perpendicular to a third hidden beam, the stability of the third hidden beam with the largest span is effectively guaranteed, the vertical column serves as a middle fulcrum of the upturning beam of a main stress member, the bearing load is large, the bottom plate is obvious in the punching effect of the vertical column, the bottom plate is locally reinforced, and a local thickening layer 10 is arranged to meet the requirement of anti-impact cutting checking calculation.
In some examples, the column 9 is a reinforced concrete member with a radius of 1.0m, the thickness of the local thickened part of the bottom plate is 2.0m, the arrangement range is within 3m of the two sides of the center of the column, and the thickened section and the standard section are provided with a 1m long transition section.
Referring to the attached figure 3, in order to reduce the dead weight of the covering soil, bubble mixed light soil 1 is adopted for backfilling at the top of the intersection structure, planting soil 2 with the thickness of 80cm and lime soil 3 with the thickness of 2:8 and the thickness of 40cm are paved between the top of the bubble mixed light soil and the designed ground from top to bottom, and layering and compaction are carried out.
Referring to the attached drawings 6-7, a second intersection is connected with a garage of a peripheral land parcel, a part of underground garages are not built due to the influence of a land parcel development time sequence, a reinforced concrete temporary plug 11 is arranged at the end of the intersection recently in order to ensure the normal operation of underground roads, the temporary plug is connected with the intersection of the garage in a settlement joint mode, the temporary plug is dismantled when the peripheral land parcel is built, and a waterproof coiled material and a water stop belt are adopted at the settlement joint.
In the embodiment, an externally-bonded waterproof coiled material 12 and a back-bonded rubber waterstop 13 are adopted at a settlement joint recently, a steel-edged waterstop 14 is embedded at a garage intersection, and a galvanized sheet iron 15 is used for wrapping and protecting; and (4) removing the temporary plug when the underground garage structure is constructed, and burying the other end of the steel-edged water stop 14 into the later-stage cast-in-place structure.
Referring to fig. 9, the ventilation of the underground road is realized by combining natural ventilation and mechanical ventilation, and a mechanical ventilation part is adopted, and an air channel of the mechanical ventilation part is built with surrounding buildings and shares a fan with the buildings. The natural ventilation smoke outlet adopts a reinforced concrete cast-in-place structure;
the air duct of the embodiment has the net size of 1.5x1.5m, the side wall thickness of 30cm, the structure 1.0m higher than the ground and is placed in a green belt.
Example two
The embodiment also provides a construction method of the underground passage structure, which comprises the following steps:
firstly, excavating a soil body, and forming a first underground road through a frame structure;
the first underground road is provided with an entrance and exit intersection, a support wall is constructed at the entrance and exit intersection to support a top plate of the first underground road, the support wall is continuously closed to form an independent partition, and the support wall is also used as an underground road emergency article storage area 18 and a cleaning tool storage area 19 after a door opening 17 is additionally arranged.
Constructing a first pipeline channel and a first ventilation channel above a first underground road, backfilling the periphery and the top of the first underground road, backfilling the two sides by using lime soil, backfilling the top plate by using light concrete, and compacting in layers;
the top of the first pipeline channel and the top of the first ventilation channel are backfilled, and the backfilling is performed by adopting a light material, so that the backfilling load on the top plates of the first pipeline channel and the first ventilation channel is effectively reduced, the communication with an underground space is realized, the problem of vehicle arrival and departure of peripheral plots is solved, and the parking resource sharing is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An underground passage structure is characterized by comprising a first underground road formed by a frame structure and used for driving a vehicle, wherein a first pipeline passage and a first ventilation passage are arranged above the first underground road, and a top plate of the first underground road is used as a bottom plate of the first pipeline passage and the first ventilation passage;
the first underground road is provided with an entrance and exit intersection, a plurality of support walls are arranged in a central island area located within a lane side line at the entrance and exit intersection, the top end of each support wall is connected with a top plate of the first underground road, and the bottom end of each support wall is connected with a bottom plate of the first underground road.
2. A subterranean passageway structure according to claim 1, wherein a plurality of the support walls form a continuous closed wall body;
the inner side of the support wall is provided with a partition plate.
3. A structure of underground passages as claimed in claim 2, wherein support columns are provided at the intersections of two adjacent support walls, the support columns being connected to the support walls;
and a first hidden beam is arranged at the entrance and exit intersection, one end of the first hidden beam is connected with the supporting wall, and the other end of the first hidden beam is connected with the side wall of the lane sideline of the entrance and exit intersection.
4. The underground passageway structure according to claim 1, wherein the thickness of the roof at the entrance/exit intersection is greater than the thickness of the roof at the non-entrance/exit intersection of the first underground roadway.
5. An underground passage structure according to claim 1, wherein the entrance-exit intersection has cavities in the ceiling to reduce the dead weight while ensuring the bearing capacity of the first underground road.
6. The underground passage structure of claim 1, further comprising a second underground road connected with the first underground road, wherein second pipeline passages and/or second ventilation passages are arranged on two sides of the second underground road, a plurality of underground spaces are arranged above the second underground road, the second pipeline passages and the second ventilation passages, the second pipeline passages are communicated with the first pipeline passages, and the second ventilation passages are communicated with the first ventilation passages;
garage intersections are arranged between the first underground road and the underground space and between the second underground road and the underground space.
7. The underground passage structure of claim 6, wherein the garage intersection is diamond-shaped, the garage intersection is provided with an opening at each end of the diamond, an upturned beam is arranged in the garage intersection and connected with side walls at two adjacent sides of the garage intersection, second hidden beams are respectively arranged between the upturned beams and between two adjacent sides of the garage intersection, and the second hidden beams are perpendicular to the upturned beams;
the garage intersection is characterized in that a third hidden beam is arranged in the maximum span direction of the garage intersection, the third hidden beam is parallel to the second hidden beam, fourth hidden beams are further arranged at the two ends of the third hidden beam, and the two ends of the fourth hidden beams are fixedly connected with the side walls of the garage intersection.
8. The underground passage structure of claim 7, wherein the garage intersection is further provided with a column for supporting the upturning beam, the bottom end of the column is supported by a bottom plate of the garage intersection, the bottom plate is locally reinforced, and the top end of the column is connected with the upturning beam.
9. An underground passage structure according to claim 6, wherein the garage intersection is provided with a temporary plug, and the temporary plug is connected with the garage intersection in the form of a settlement joint.
10. A construction method of an underground tunnel structure according to any one of claims 1 to 9, comprising:
excavating a soil body, and forming a first underground road through a frame structure;
the first underground road is provided with an entrance and exit intersection, and a support wall is constructed at the entrance and exit intersection to support a top plate of the first underground road;
constructing a first pipeline channel and a first ventilation channel above a first underground road;
backfilling two sides and the top of the first underground road;
and the top parts of the first pipeline channel and the first ventilation channel are backfilled, and the backfilling is carried out by adopting a light material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210009622.5A CN114277843B (en) | 2022-01-05 | 2022-01-05 | Underground passage structure and construction method |
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| CN202210009622.5A CN114277843B (en) | 2022-01-05 | 2022-01-05 | Underground passage structure and construction method |
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| CN114277843A true CN114277843A (en) | 2022-04-05 |
| CN114277843B CN114277843B (en) | 2023-09-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808577A (en) * | 2022-05-09 | 2022-07-29 | 杭州金溢建设集团有限公司 | Building-riding expansion method and equipment for adjacent buildings and with limited road width |
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|---|---|---|---|---|
| CN1333411A (en) * | 2001-07-13 | 2002-01-30 | 武汉大学 | Natural lighting and ventilation underground car pass way |
| CN202181488U (en) * | 2011-04-08 | 2012-04-04 | 安维民 | Urban intelligent digital nervous traffic system |
| CN103147771A (en) * | 2013-03-24 | 2013-06-12 | 中铁二院工程集团有限责任公司 | Long-span high-backfill open cut tunnel structure |
| CN205894100U (en) * | 2016-06-29 | 2017-01-18 | 中冶长天国际工程有限责任公司 | Underground transfer passage |
| CN110042865A (en) * | 2019-05-22 | 2019-07-23 | 河南省交通规划设计研究院股份有限公司 | Box top board structure for large span city tunnel |
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2022
- 2022-01-05 CN CN202210009622.5A patent/CN114277843B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333411A (en) * | 2001-07-13 | 2002-01-30 | 武汉大学 | Natural lighting and ventilation underground car pass way |
| CN202181488U (en) * | 2011-04-08 | 2012-04-04 | 安维民 | Urban intelligent digital nervous traffic system |
| CN103147771A (en) * | 2013-03-24 | 2013-06-12 | 中铁二院工程集团有限责任公司 | Long-span high-backfill open cut tunnel structure |
| CN205894100U (en) * | 2016-06-29 | 2017-01-18 | 中冶长天国际工程有限责任公司 | Underground transfer passage |
| CN110042865A (en) * | 2019-05-22 | 2019-07-23 | 河南省交通规划设计研究院股份有限公司 | Box top board structure for large span city tunnel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808577A (en) * | 2022-05-09 | 2022-07-29 | 杭州金溢建设集团有限公司 | Building-riding expansion method and equipment for adjacent buildings and with limited road width |
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| CN114277843B (en) | 2023-09-05 |
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