CN113187552A - Construction method for plugging ultra-large diameter tunnel under water-rich stratum - Google Patents
Construction method for plugging ultra-large diameter tunnel under water-rich stratum Download PDFInfo
- Publication number
- CN113187552A CN113187552A CN202110643197.0A CN202110643197A CN113187552A CN 113187552 A CN113187552 A CN 113187552A CN 202110643197 A CN202110643197 A CN 202110643197A CN 113187552 A CN113187552 A CN 113187552A
- Authority
- CN
- China
- Prior art keywords
- plugging
- tunnel
- pile
- water
- steps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000005553 drilling Methods 0.000 claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 238000009412 basement excavation Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000011120 plywood Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
- E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a construction method for plugging an ultra-large diameter tunnel under a water-rich stratum, which comprises the following steps: determining a tunnel plugging section according to a construction plan, performing measurement and setting-out, making plugging pile excavation marks corresponding to the central position of the plugging section on the ground, constructing two dewatering wells from the ground downwards to perform stratum dewatering operation, wherein the dewatering wells are respectively positioned at two sides of the tunnel near the plugging pile, the depth of each dewatering well is up to the bottom of the tunnel, constructing the plugging pile according to the marked positions, the depth of each plugging pile is up to the top of the tunnel, drilling a hole in each plugging pile, inserting a pump pipe, installing a template and a support system in the tunnel, extending the tail end of the pump pipe into the tunnel, and pouring plugging section concrete through the pump pipe to complete construction. The invention is simple and easy to implement, safe and reliable, can avoid a large amount of water from flowing into the pipeline, better isolates underground water from the pipeline, can also avoid the pipeline from generating cracks and being damaged, ensures the integrity of the pipeline and reduces potential safety hazards.
Description
Technical Field
The invention relates to the technical field of underground pipeline plugging construction, in particular to a plugging construction method for an ultra-large diameter tunnel under a water-rich stratum.
Background
In the higher rich water stratum of groundwater level, if bury super large diameter reinforced concrete pipeline (the diameter is more than 6 m) earlier underground, later stage needs to be under construction again in the subregion of this pipeline top, in order to ensure construction safety, prevents that groundwater from getting into the pipeline when later stage is under construction, need carry out the shutoff to super large pipeline before the construction usually, simultaneously, still need take corresponding measure to guarantee that the pipeline outside the construction area is not destroyed. The existing pipeline plugging modes are various, but plugging objects are not for the pipeline with the ultra-large diameter, when the plugging area of the pipeline is increased, the risk in the plugging process is increased in multiples, and the plugging is difficult to complete.
Disclosure of Invention
In order to solve the problems, the invention provides a safe and reliable construction method for plugging an ultra-large diameter tunnel in a water-rich stratum, which has a good plugging effect, and the following technical scheme can be adopted specifically:
the invention relates to a construction method for plugging an ultra-large diameter tunnel in a water-rich stratum, which comprises the following steps:
firstly, determining a tunnel blocking section according to a construction plan, and making a blocking pile excavation mark corresponding to the central position of the blocking section on the ground through measurement and setting-out;
secondly, constructing two dewatering wells downwards from the ground to perform stratum dewatering operation, wherein the dewatering wells are respectively positioned on two sides of the tunnel near the plugging pile, and the depth of each dewatering well reaches the bottom of the tunnel;
thirdly, constructing a plugging pile according to the marked position, wherein the depth of the plugging pile is up to the top of the tunnel;
fourthly, drilling a hole in the plugging pile, inserting a pump pipe, and enabling the tail end of the pump pipe to extend into the tunnel;
and fifthly, installing a template and a supporting system in the tunnel, and then pouring concrete at the plugging section through a pump pipe to finish construction.
The two ends of the dewatering well are solid pipes, and the middle of the dewatering well is a flower pipe.
The stratum dewatering operation of the second step comprises the steps that a submersible pump is arranged in a dewatering well, underground water is discharged outside through the submersible pump, and the water level near the plugging section is lowered to be below the top surface of the tunnel; if the water level does not reach the standard, grouting reinforcement operation is required to be performed in the soil around the plugging pile.
The grouting reinforcement operation comprises the steps of excavating a plurality of vertical holes equidistant to the center of the plugging pile, and grouting reinforcement is carried out in the vertical holes.
And constructing the plugging pile in the third step comprises the steps of firstly adopting a rotary drilling rig for construction, and then backfilling C15 concrete.
And fourthly, drilling holes on the plugging piles by using a geological drilling machine.
And in the fifth step, the concrete of the blocking section is poured in sections from bottom to top.
The template and the supporting system comprise channel steel, bamboo plywood and square timber arranged at two ends of the plugging section, paired connecting pieces are arranged on the square timber, opposite-pulling reinforcing steel bars penetrating through the plugging section are arranged between the connecting pieces, and inclined supporting steel pipes connected with the bottom surface of the tunnel are arranged at the other ends of the connecting pieces.
The construction method for plugging the ultra-large diameter tunnel under the water-rich stratum is simple, feasible, safe and reliable, adopts plain concrete for plugging, and can avoid a large amount of water from flowing into a pipeline during plugging construction; the plugging structure is stable and firm, brick construction is not needed, and construction cost is greatly saved; during later stage construction, not only can better keep apart groundwater and pipeline, can also avoid the pipeline to produce the crack and take place the damage, ensure the integrality of pipeline, reduce the potential safety hazard.
Drawings
FIG. 1 is a schematic illustration of the present invention in which formation precipitation operations are performed.
Fig. 2 is a cross-sectional view of fig. 1 at groundwater level line m.
Fig. 3 is a schematic diagram of the construction of the plugging pile in the invention.
Figure 4 is a schematic view of drilling a hole in a plugging pile according to the present invention.
FIG. 5 is a schematic view of a cartridge pump tube according to the present invention.
Fig. 6-8 are schematic diagrams of the sectional pouring of the concrete of the plugging section in the invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific construction processes are given, but the scope of the present invention is not limited to the following embodiments.
Example 1:
as shown in fig. 1, when a station of a second subway line in a city is constructed, a tunnel 1 is first passed and then constructed as a station body. The ground water level m of the station is about 7 meters under the ground, the shield segment pipe diameter of the tunnel 1 is 6.25 meters, the wall thickness is 35cm, the buried depth is about 9 meters under the ground, and the shield segment conflicts with the station fender post. If not carry out tunnel 1 shutoff, when constructing station fender pile, drilling pouring mud can run off in a large number, makes fender pile concrete can't pour into to the design elevation, simultaneously, can gush into a large amount of silt and groundwater in tunnel 1, influences the later stage of tunnel 1 and uses. Therefore, before constructing the station fender post, the shield tunnel 1 needs to be blocked.
When the construction method for plugging the oversized diameter tunnel in the water-rich stratum is used for construction, the steps shown in figures 1-8 are as follows:
firstly, determining a plugging section 2 of a tunnel 1 according to a construction plan, and making a plugging pile 3 excavation mark corresponding to the center position of the plugging section 2 on the ground through measurement and paying-off;
secondly, constructing two dewatering wells 4 from the ground downwards to perform stratum dewatering operation;
the dewatering wells 4 are respectively positioned at two sides of the tunnel 1 near the plugging piles 3, and the depth of the dewatering wells 4 reaches the bottom of the tunnel 1. In general, the dewatering wells 4 are arranged 2-5m away from the central line of the plugging pile 3, both ends of each dewatering well 4 are solid pipes, and the middle of each dewatering well 4 is a flower pipe facilitating water seepage. After the construction of the dewatering well 4 is completed, a submersible pump is placed in the dewatering well, underground water is discharged out through the submersible pump, and the water level n near the plugging section 2 is reduced to be below the top surface of the tunnel 1; if the falling water level does not reach the standard, grouting reinforcement operation is required to be carried out in the soil body within the range of 2m around the plugging pile 3, namely, a plurality of vertical holes 5 which are equidistant with the center of the plugging pile 3 are excavated, and grouting reinforcement is carried out in the vertical holes 5.
Thirdly, constructing a plugging pile 3 according to the marked position, wherein the diameter of the plugging pile 3 is 800mm, and the depth of the plugging pile 3 is up to the top of the tunnel 1;
constructing the plugging pile 3 by adopting a rotary drilling rig, firstly enabling the rotary drilling rig to be in place, and then embedding a pile casing, drilling, forming holes, cleaning the holes, backfilling C15 concrete and pouring waterproof concrete in sequence;
fourthly, drilling a hole in the plugging pile 3, and inserting a pump pipe 6 with the tail end extending into the tunnel 1;
specifically, a geological drilling machine is put in place, a hole is drilled in the center of the plugging pile 3, coring is carried out until the top of the tunnel 1 is reached, and the geological drilling machine is communicated with the tunnel 1 by cutting shield segments. The diameter of the drilled hole is 200 mm.
And fifthly, installing a template and a supporting system in the tunnel 1, and then pouring concrete of the plugging section 2 in a segmented manner from bottom to top through a pump pipe 6 to finish construction.
The formwork and support system includes channel steel 701, bamboo plywood 702 and square timber 703 at both ends of the plugging section. The channel steel 701 is vertically supported and arranged at intervals along the plugging surface; the bamboo plywood 702 and the square timber 703 are arranged outside the channel steel 701 in sequence. The square beams 703 are provided with double-spliced steel pipes 704 as connecting pieces, the double-spliced steel pipes 704 are arranged in pairs, each pair of double-spliced steel pipes 704 are connected through a split steel bar 705 penetrating through the plugging section 2, and the other end of each double-spliced steel pipe 704 is provided with an inclined supporting steel pipe 706 connected with the bottom surface of the tunnel 1.
In this embodiment, the concrete of the plugging section 2 is poured in three sections, the bamboo plywood 702, the square timber 703, the diagonal steel bars 705 and the inclined support steel pipes 706 are installed section by section from bottom to top, the diagonal steel bars 705 are poured in the concrete, and the inclined support steel pipes 706 are removed after the concrete pouring of the section is completed.
It should be noted that in the description of the present invention, terms of orientation or positional relationship such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention.
Claims (8)
1. A construction method for plugging an ultra-large diameter tunnel under a water-rich stratum is characterized by comprising the following steps: the method comprises the following steps:
firstly, determining a tunnel blocking section according to a construction plan, and making a blocking pile excavation mark corresponding to the central position of the blocking section on the ground through measurement and setting-out;
secondly, constructing two dewatering wells downwards from the ground to perform stratum dewatering operation, wherein the dewatering wells are respectively positioned on two sides of the tunnel near the plugging pile, and the depth of each dewatering well reaches the bottom of the tunnel;
thirdly, constructing a plugging pile according to the marked position, wherein the depth of the plugging pile is up to the top of the tunnel;
fourthly, drilling a hole in the plugging pile, inserting a pump pipe, and enabling the tail end of the pump pipe to extend into the tunnel;
and fifthly, installing a template and a supporting system in the tunnel, and then pouring concrete at the plugging section through a pump pipe to finish construction.
2. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 1, characterized by comprising the following steps of: the two ends of the dewatering well are solid pipes, and the middle of the dewatering well is a flower pipe.
3. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 1, characterized by comprising the following steps of: the stratum dewatering operation of the second step comprises the steps that a submersible pump is arranged in a dewatering well, underground water is discharged outside through the submersible pump, and the water level near the plugging section is lowered to be below the top surface of the tunnel; if the water level does not reach the standard, grouting reinforcement operation is required to be performed in the soil around the plugging pile.
4. The plugging construction method for the extra-large diameter tunnel under the water-rich stratum according to claim 3, characterized in that: the grouting reinforcement operation comprises the steps of excavating a plurality of vertical holes equidistant to the center of the plugging pile, and grouting reinforcement is carried out in the vertical holes.
5. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 1, characterized by comprising the following steps of: and constructing the plugging pile in the third step comprises the steps of firstly adopting a rotary drilling rig for construction, and then backfilling C15 concrete.
6. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 1, characterized by comprising the following steps of: and fourthly, drilling holes on the plugging piles by using a geological drilling machine.
7. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 1, characterized by comprising the following steps of: and in the fifth step, the concrete of the blocking section is poured in sections from bottom to top.
8. The plugging construction method for the oversized-diameter tunnel in the water-rich stratum according to claim 7, characterized by comprising the following steps of: the template and the supporting system comprise channel steel, bamboo plywood and square timber arranged at two ends of the plugging section, paired connecting pieces are arranged on the square timber, opposite-pulling reinforcing steel bars penetrating through the plugging section are arranged between the connecting pieces, and inclined supporting steel pipes connected with the bottom surface of the tunnel are arranged at the other ends of the connecting pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643197.0A CN113187552B (en) | 2021-06-09 | 2021-06-09 | Blocking construction method for oversized-diameter tunnel under water-rich stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110643197.0A CN113187552B (en) | 2021-06-09 | 2021-06-09 | Blocking construction method for oversized-diameter tunnel under water-rich stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113187552A true CN113187552A (en) | 2021-07-30 |
| CN113187552B CN113187552B (en) | 2024-04-02 |
Family
ID=76976508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110643197.0A Active CN113187552B (en) | 2021-06-09 | 2021-06-09 | Blocking construction method for oversized-diameter tunnel under water-rich stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113187552B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482105A (en) * | 2022-03-18 | 2022-05-13 | 中铁一局集团有限公司 | Construction method for plugging dewatering well group with strong pressure water after ultra-deep subway station is sealed |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2016065A (en) * | 1978-03-09 | 1979-09-19 | Precontrainte Structures Soc F | A method and an installation for launching a submerged tunnel |
| US4669919A (en) * | 1984-06-06 | 1987-06-02 | Kvt Kunststoffverfahrenstechnik Gmbh & Co. | Process for consolidation and sealing coal and/or rock, soil and brick formations in mining, tunnelling and construction |
| DE3617797A1 (en) * | 1986-05-27 | 1987-12-03 | Phoenix Ag | Tunnel sealing system for sealing the end joint |
| CN87103870A (en) * | 1986-04-17 | 1988-01-27 | 矿山开发中心研究所 | Tunnel, master tunnel, ore deposit, passage and other underground secret tunnel emit the method for blocking of water |
| JP2001234700A (en) * | 2000-02-21 | 2001-08-31 | Mitsui Constr Co Ltd | Tunnel backfilling device, and tunnel backfilling method |
| JP2007154635A (en) * | 2005-12-02 | 2007-06-21 | Kotobuki Kensetsu Kk | Tunnel repairing method no. 2 |
| KR100959301B1 (en) * | 2009-03-31 | 2010-06-01 | 유위열 | Tunnel structure object and tunnel and tunnel construction work method |
| CN103233459A (en) * | 2013-04-02 | 2013-08-07 | 北京航空航天大学 | Steel plate and concrete combined underground continuous wall and construction method thereof |
| CN203668971U (en) * | 2013-12-30 | 2014-06-25 | 郑州市第一建筑工程集团有限公司 | Waterproof formwork system for open trench tunnel |
| CN105464194A (en) * | 2016-01-11 | 2016-04-06 | 许昌水利建筑工程有限公司 | Water proofing and leak repairing construction method for sewage pipe network below underground water level |
| CN108756955A (en) * | 2018-06-14 | 2018-11-06 | 中交第二航务工程局有限公司 | Shield tunnel gravity type sealing plugging structure and method |
| CN110424969A (en) * | 2019-07-03 | 2019-11-08 | 中铁一局集团厦门建设工程有限公司 | It is a kind of elder generation tunnel after stand cut and cover method station construction engineering method |
| CN111424685A (en) * | 2020-04-14 | 2020-07-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep water falling hole processing structure and method for backfilling foundation in large karst depression |
| US20200263542A1 (en) * | 2019-02-20 | 2020-08-20 | Dsi Tunneling Llc | Underground support system and method |
| CN111794278A (en) * | 2020-07-14 | 2020-10-20 | 中铁九局集团第七工程有限公司 | Plugging structure and construction method for plugging reserved hole of middle plate by using plugging structure |
-
2021
- 2021-06-09 CN CN202110643197.0A patent/CN113187552B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2016065A (en) * | 1978-03-09 | 1979-09-19 | Precontrainte Structures Soc F | A method and an installation for launching a submerged tunnel |
| US4669919A (en) * | 1984-06-06 | 1987-06-02 | Kvt Kunststoffverfahrenstechnik Gmbh & Co. | Process for consolidation and sealing coal and/or rock, soil and brick formations in mining, tunnelling and construction |
| CN87103870A (en) * | 1986-04-17 | 1988-01-27 | 矿山开发中心研究所 | Tunnel, master tunnel, ore deposit, passage and other underground secret tunnel emit the method for blocking of water |
| DE3617797A1 (en) * | 1986-05-27 | 1987-12-03 | Phoenix Ag | Tunnel sealing system for sealing the end joint |
| JP2001234700A (en) * | 2000-02-21 | 2001-08-31 | Mitsui Constr Co Ltd | Tunnel backfilling device, and tunnel backfilling method |
| JP2007154635A (en) * | 2005-12-02 | 2007-06-21 | Kotobuki Kensetsu Kk | Tunnel repairing method no. 2 |
| KR100959301B1 (en) * | 2009-03-31 | 2010-06-01 | 유위열 | Tunnel structure object and tunnel and tunnel construction work method |
| CN103233459A (en) * | 2013-04-02 | 2013-08-07 | 北京航空航天大学 | Steel plate and concrete combined underground continuous wall and construction method thereof |
| CN203668971U (en) * | 2013-12-30 | 2014-06-25 | 郑州市第一建筑工程集团有限公司 | Waterproof formwork system for open trench tunnel |
| CN105464194A (en) * | 2016-01-11 | 2016-04-06 | 许昌水利建筑工程有限公司 | Water proofing and leak repairing construction method for sewage pipe network below underground water level |
| CN108756955A (en) * | 2018-06-14 | 2018-11-06 | 中交第二航务工程局有限公司 | Shield tunnel gravity type sealing plugging structure and method |
| US20200263542A1 (en) * | 2019-02-20 | 2020-08-20 | Dsi Tunneling Llc | Underground support system and method |
| CN110424969A (en) * | 2019-07-03 | 2019-11-08 | 中铁一局集团厦门建设工程有限公司 | It is a kind of elder generation tunnel after stand cut and cover method station construction engineering method |
| CN111424685A (en) * | 2020-04-14 | 2020-07-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep water falling hole processing structure and method for backfilling foundation in large karst depression |
| CN111794278A (en) * | 2020-07-14 | 2020-10-20 | 中铁九局集团第七工程有限公司 | Plugging structure and construction method for plugging reserved hole of middle plate by using plugging structure |
Non-Patent Citations (3)
| Title |
|---|
| 刘浩等: "京珠高速公路洋碰隧道水害原因分析及安全性评价", 隧道建设(中英文) * |
| 李振;张荣俊;郭梦莉;王兴;: "地铁站地下连续墙穿越人防隧道施工技术", 安徽建筑大学学报, no. 02 * |
| 魏玉省;: "联络通道坍塌后地层加固方案探讨", 隧道建设, no. 04 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482105A (en) * | 2022-03-18 | 2022-05-13 | 中铁一局集团有限公司 | Construction method for plugging dewatering well group with strong pressure water after ultra-deep subway station is sealed |
| CN114482105B (en) * | 2022-03-18 | 2024-04-16 | 中铁一局集团有限公司 | Precipitation well group plugging construction method with strong pressurized water after ultra-deep subway station is closed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113187552B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111119940B (en) | Grouting construction treatment method | |
| CN104612162A (en) | Subway station deep foundation pit excavation construction method | |
| CN111648790B (en) | Shallow-buried bias tunnel entry structure and construction method | |
| CN109723443A (en) | Method for tunnel construction | |
| CN115539048A (en) | Construction method for shallow-buried bias tunnel portal | |
| CN107653878A (en) | Cast-in-situ bored pile is reusable to be longitudinally separated formula steel pile casting construction | |
| CN104131566B (en) | A kind of basement is without the construction method of horizontal support foundation ditch | |
| CN114033388B (en) | Shaft construction method for water-rich silty sand layer underground tunnel roof pipe | |
| CN113187552B (en) | Blocking construction method for oversized-diameter tunnel under water-rich stratum | |
| CN110735641B (en) | Construction method of transfer passage of underpass pipeline | |
| CN111560964B (en) | Construction method of rear anti-seepage system of foundation pit | |
| CN105040705A (en) | Ground foundation treatment construction technology under multi-karst-cave geological conditions | |
| CN110762286B (en) | Drainage pipe network artificial pipe jacking construction process | |
| CN202925575U (en) | Pre-buried structure for core-drilling detection of foundation pile | |
| CN107642101A (en) | A kind of rocky bed steel cofferdam back cover leak stopping and guarded drainage construction method | |
| CN114635450A (en) | Construction method for permanent steel pipe structural column of covered and excavated station | |
| CN110485465B (en) | Circular working well with water-rich stratum with preset pipe jacking door opening and construction method of circular working well | |
| CN107975376A (en) | Tunneling shield push pipe and vertical duct connection structure and construction method | |
| CN117248962B (en) | Method for treating presbyopia water among small kiln roadway column type residual coal pillars | |
| CN114607187B (en) | Shaft type underground parking garage construction method of cast-in-situ supporting structure under slurry | |
| CN111088802B (en) | New and old ground wall connection interface processing structure and processing method thereof | |
| CN113373915B (en) | Method for reinforcing steel column pile structure | |
| CN106368709A (en) | Construction method of vertical shaft | |
| CN215105237U (en) | A fold and cross shield tunnel house foundation reinforced structure for being close to house | |
| CN113373901B (en) | Overlapping shield tunnel house foundation reinforcing structure next to house and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |