CN105781575B - Water-rich stratum pipe piece combined structure and construction method thereof - Google Patents
Water-rich stratum pipe piece combined structure and construction method thereof Download PDFInfo
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- CN105781575B CN105781575B CN201610140503.8A CN201610140503A CN105781575B CN 105781575 B CN105781575 B CN 105781575B CN 201610140503 A CN201610140503 A CN 201610140503A CN 105781575 B CN105781575 B CN 105781575B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 32
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000000440 bentonite Substances 0.000 claims abstract description 6
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004567 concrete Substances 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 13
- 230000005641 tunneling Effects 0.000 claims description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000012615 aggregate Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000008961 swelling Effects 0.000 abstract description 7
- 239000002689 soil Substances 0.000 abstract description 4
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 239000011398 Portland cement Substances 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000003566 sealing material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
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- 238000007906 compression Methods 0.000 description 2
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- 238000005260 corrosion Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 229910021487 silica fume Inorganic materials 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a water-rich stratum duct piece combined structure and a construction method thereof. The grouting wall is made of a water-permeable material, so that the circular flow of underground water is reduced, the water and soil loss is relieved, and the surface ecosystem is protected; the situations of overlarge grouting amount or blockage of a grouting pipe and the like are not easy to occur in the grouting process; the bentonite can fully fill the cavity of the water-rich stratum by swelling in water, so that the ground settlement caused by construction is reduced; increase the waterproof layer between section of jurisdiction and the two linings, combine the waterproof effect of section of jurisdiction self and rubber sealing rod, make water-proof effects obtain very big promotion, even secondary lining produces the crack or the section of jurisdiction infiltration, also can prevent effectively that water from getting into inside the tunnel, provide probably for waterproof for a long time.
Description
Technical Field
The invention relates to the field of shield tunnel segment structures, in particular to a water-rich stratum segment combined structure and a construction method thereof.
Background
With the continuous development of national rail transit, the shield technology has the advantages of high construction speed, small influence on the surrounding environment and high economic benefit and is widely applied. When the shield tunnel passes through various water-rich ground surfaces, complex waterproof problems are met, and great challenges are brought to tunnel builders; meanwhile, the influence of tunnel construction on the aspects of runoff, drainage, replenishment, recharge and the like of underground water is great, and particularly in cities with large relative specific gravity of underground water, the underground water circulation path is seriously damaged by the construction of subway tunnels, so that the water level is reduced, the environment is damaged, and the sustainable development of the cities is not facilitated.
In the shield tunneling process, as the shield advances forward, when the duct piece is separated from the shield tail, an annular gap with a certain width is formed between the soil body around the shield tunnel and the duct piece. Usually, the process of filling consolidation slurry into the gap behind the segment back after the shield tail is separated is changed into the wall post-grouting, the wall post-grouting not only plays a role in preventing the ground from settling in the construction of the tunnel and ensuring the stability of the lining of the segment, and the stone body after the slurry is consolidated is wrapped on the periphery of the segment to form a first waterproof barrier for the tunnel. However, for water-rich strata, grouting of a grouting wall is not necessarily guarantee of a waterproof effect, the periphery of the tunnel is watertight in a large range due to the impermeability of grouting slurry, a large amount of circulating water is damaged by stone bodies of the slurry to break an original path, more underground water can be discharged into rivers only through underground water facilities, the burden of drainage facilities is increased, the underground water cannot be supplemented in time, and urban water balance systems are artificially destroyed.
The water-rich stratum has the unfavorable geological characteristics of poor self-stability, strong water-rich property, saturated water content (saturation is more than 90 percent), large permeability coefficient and the like. At the moment, the shield wall post-grouting requires rapid water blocking and rapid refilling. The water-rich stratum contains cavities, and soil mass is excessively lost along with factors such as improper control of shield construction tunneling parameters and the like, so that stratum cavities are generated, and great influence is generated on the post-grouting. For a common grouting material, on one hand, a cavity under a water-rich stratum causes the increase of grouting amount, grouting slurry loss is generated, and the stability of grouting pressure and the compactness of a grouting interval are difficult to maintain; on the other hand, as the slurry is solidified, the density and the strength of the grouting body are gradually increased, further stratum loss and segment damage are easily caused, and the long-term waterproof effect of the shield tunnel is affected.
The shield secondary lining construction is regarded as a waterproof structure while the reinforcement, corrosion prevention and inner surface of the duct piece are finished. However, most of the secondary linings are made of plain concrete, and cracks are likely to be generated when the tunnel deforms and stretches due to the influence of load fluctuation after the tunnel is completed. In addition, the ready-made cast concrete used for secondary lining is restrained by the unevenness of the inner surface of the segment on the back surface, cracks are easily generated due to drying shrinkage and temperature stress, and a construction joint with unfavorable waterproof property is provided. Therefore, water leakage is likely to occur in the lining for many years after the construction of the tunnel is completed, and a high waterproof effect of the secondary lining cannot be expected.
In summary, researchers are required to deeply discuss the problem that the tunnel construction does not obstruct the circulation of the underground water while ensuring that the tunnel waterproof effect is not lower than the regulations of the national subway waterproof standard when the rail traffic construction is carried out in the city where the circulation of the underground water occupies an important position.
Disclosure of Invention
The invention aims to provide a water-rich stratum pipe piece combined structure and a construction method thereof, wherein the combined structure can not reduce the waterproof quality of a tunnel but also ensure the circulation of underground water in a water-rich stratum.
In order to achieve the purpose, the invention adopts the following technical scheme:
the water-rich stratum pipe piece combined structure comprises a plurality of groups of spliced pipe pieces, wherein a grouting wall is arranged on the outer side of each pipe piece, the grouting wall is made of a water-permeable grouting material, two lining concretes are arranged on the inner side of each pipe piece, and a waterproof layer is arranged between each pipe piece and the two lining concretes; through the arrangement of the water-permeable grouting material, the structure of the existing duct piece can be effectively ensured, and the damage to a groundwater system can be reduced; and the waterproof layer can effectively prevent groundwater from permeating into the tunnel, and a waterproof effect is achieved.
Further, the water-permeable grouting material comprises cement, coarse aggregates, water, bentonite slurry and an additive; the cement is Portland cement or ordinary Portland cement with high strength and less mixed material, the strength grade of the cement is preferably above 32.5, and the cement dosage is ensured to be 500kg/m of 300-3The bentonite slurry has the effect of water swelling, the gap between the pipe piece and the stratum is well filled, the effect of circulating flow of underground water is formed on the basis of ensuring the compressive strength, and the condition of grouting blockage or overlarge grouting amount is not easy to generate.
Furthermore, a water stop strip is arranged between the spliced pipe pieces, so that the sealing performance between the adjacent pipe pieces is effectively improved.
Furthermore, the material of the water stop strip is a water-swelling rubber material, and generates an elastic reaction force by compressing the sealing material per se, and also generates additional swelling pressure on the contact surface by the restraint of the sealing groove through self swelling of the sealing material per se through a chemical reaction with water.
Furthermore, the skeleton of the coarse aggregate is 2.5-5mm, 5-10mm, 10-15mm of sand, gravel or waste concrete in construction waste, the skeleton accounts for 60% -75% of the coarse aggregate, the smaller the aggregate particle size, the more contact points among aggregate accumulation particles, the higher the strength of the prepared grouting material, and the better the water permeability.
Further, the water-cement ratio of the water-permeable grouting material is 0.28-0.33.
Furthermore, the waterproof layer is a waterproof board, and the waterproof board is made of ethylene-vinyl acetate copolymer modified PE coiled materials.
The method adopts the pulverized fly ash or the silica fume as the active mineral admixture and uses the high-efficiency water reducing agent and the like to break the flocculation of the slurry, so that fine powder particles are fully dispersed in the slurry, and the strength and the water permeability of the material are improved. When the water-cement ratio is about 0.28-0.33, a more ideal water-permeable structure can be formed, and the water-permeable structure has higher strength and certain water permeability.
Furthermore, the water stop strip is a rectangular frame strip.
Furthermore, the cross section of the water stop strip is porous, so that the rubber compression amount can be effectively increased.
Furthermore, the slip casting wall is attached to the periphery of the pipe piece and is annular.
The construction method of the water-rich stratum pipe piece combined structure comprises the following specific steps:
1) splicing the segments by the shield tunneling machine in the tunneling process and arranging a water stop strip between two adjacent segments;
2) arranging a waterproof layer tightly attached to the pipe piece on the inner layer of the pipe piece;
3) arranging annular second-lining concrete along the inner side of the waterproof layer on the inner side of the waterproof layer;
4) and a water-permeable grouting material which is tightly attached to the duct piece is arranged on the outer side of the duct piece and serves as a grouting wall.
Further, the waterproof plates are spliced or overlapped in the step 2), the splicing positions of the waterproof plates and the splicing positions of the duct pieces are arranged in a staggered mode, and the waterproof plates are installed from bottom to top.
The working principle of the invention is as follows: aiming at the actual situation that the original path is damaged by a large amount of circulating water through a watertight grouting combination body in the prior art and more underground water can only be discharged into a river through underground water facilities, the invention sets the grouting material as the watertight material, sets the rectangular water stop strips between the adjacent pipe pieces and sets the waterproof layer between the pipe pieces and the two pieces of lining concrete, thereby not only effectively ensuring the structure of the tunnel, but also reducing the damage to the underground water and having obvious effect.
The invention has the beneficial effects that:
1) the grouting wall is made of a water-permeable material, so that the circular flow of underground water is reduced, the water and soil loss is relieved, and the surface ecosystem is protected; the situations of overlarge grouting amount or blockage of a grouting pipe and the like are not easy to occur in the grouting process; the bentonite can fully fill the water-rich stratum cavity by swelling when meeting water, and the ground settlement caused by construction is reduced.
2) Increase the waterproof layer between section of jurisdiction and the two linings, combine the waterproof effect of section of jurisdiction self and rubber sealing rod, make water-proof effects obtain very big promotion, even secondary lining produces the crack or the section of jurisdiction infiltration, also can prevent effectively that water from getting into inside the tunnel, provide probably for waterproof for a long time.
3) Through the change of traditional slip casting material and the integrated configuration who adds the waterproof layer, not only solved the waterproof safety problem in tunnel, guaranteed the circulation of groundwater around the tunnel simultaneously, alleviated the sustainable development problem of city groundwater, accelerated urban construction, protected the regional environment.
Drawings
FIG. 1 is a schematic view of a special segment combination structure of a water-rich stratum
FIG. 2 is a diagram of a node of a special segment combination in a water-rich stratum
In the figure, 1, a segment structure; 2, waterproof board; 3, lining concrete for two times; 4 grouting the wall; 5 ambient environment; 6 rubber water stop strip.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, the special segment combination structure of the water-rich stratum comprises a segment structure 1, two lining concretes 3, a waterproof board 2 and a water-permeable grouting material 4 around the segment.
Wherein construction joint sets up rubber sealing strip 6 among segment structure 1, and rubber sealing strip 6 processes into confined rectangular frame strip at the mill according to the actual size of every segment water stopping slot, before the segment is assembled, embolias the segment water stopping slot with it, and each segment extrudes rubber sealing strip 6 each other after assembling to reach the stagnant water purpose, for increasing rubber compression volume, improve the stagnant water effect, the rubber strip section adopts porous. The water stop strip has certain durability, including waterproof function durability, water resistance, dynamic fatigue resistance, dry and wet fatigue resistance, chemical corrosion resistance and the like; the rubber water stop strip 6 is made of a water-swelling rubber material, and generates additional swelling pressure on a contact surface by virtue of the restraint of the sealing groove through self swelling of the sealing material by chemical reaction with water on the basis of generating elastic counter force by compressing the sealing material.
A waterproof plate 2 is arranged between the segment structure 1 and the second lining concrete 3. The waterproof board 2 adopts EVA (ethylene-vinyl acetate copolymer) modified PE coiled material, the EVA is mainly used for modifying PE, and the EVA mixing amount is 40%. The waterproof board 2 has a thickness of 2.5mm and a width of 3 m. The waterproof board 2 has the following physical and mechanical properties: the tensile strength is more than or equal to 12MPa, the elongation at break is more than or equal to 200 percent, the heat treatment change rate is less than or equal to 2.5 percent, the low-temperature bending property has no crack at minus 20 ℃, and meanwhile, the waterproof board 2 has good puncture resistance, durability, water resistance, impermeability, corrosion resistance, bacterial resistance and the like; simultaneously, the waterproof board is laid according to the ring, and according to the form of staggered joint concatenation between waterproof board 2 and the section of jurisdiction, the gap between the section of jurisdiction is covered by waterproof board 2, and the bolt in the section of jurisdiction is simultaneously fixed waterproof board 2.
The flashing 2 performs ground splicing. When the splice welding is carried out, one waterproof board 2 is tiled on the ground, the other waterproof board 2 is arranged on the front waterproof board, the overlapping amount of more than 10cm is ensured, and all parts are aligned.
Laying the spliced waterproof board 2 from bottom to top, and ensuring that the relative position of the laid waterproof board 2 and the segment is accurate; finding a leak in the laying process and maintaining in time; when the secondary lining concretes, need protect waterproof board 2, prevent to puncture waterproof board 2.
The grouting wall 4 is made of a water-permeable grouting material. The grouting material adopted by the invention is a water-permeable material. The grouting wall grouting slurry is prepared from cement, coarse aggregates, water, bentonite slurry, an additive and the like. The cement is Portland cement or ordinary Portland cement with high strength and less mixed material, the strength of the cement is 42.5, and the dosage of the cement is 450kg/m3. The coarse aggregate adopts aggregate with the grain diameter of 2.5-5mm and 5-10mm, such as common sand, broken stone or waste concrete in construction waste, and the like as a framework, and accounts for 70 percent of the total volume. Adopts the milled fly ash or the silica fume as the blending material of the active mineral and uses the high-efficiency water reducing agent and the like. The water cement ratio is controlled to be about 0.31, the grouting material preparation process adopts a common stirring method, coarse aggregates and cement are mixed and stirred for about 60s according to a certain mixing ratio until the mixture is uniform, and the mixture is continuously stirred after water is added until the mixture is uniform.
The construction method of the water-rich stratum pipe piece combined structure comprises the following specific steps:
1) splicing the segments by the shield tunneling machine in the tunneling process and arranging a rubber water stop strip 6 between two adjacent segments;
2) the inner layer of the duct piece is provided with a waterproof plate 2 which is tightly attached to the duct piece;
3) an annular second lining concrete 3 is arranged on the inner side of the waterproof board 2 along the inner side of the waterproof board 2;
4) the outer side of the duct piece is provided with a water-permeable grouting material which is tightly attached to the duct piece and is used as a grouting wall 4.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The water-rich stratum pipe piece combined structure is characterized by comprising a plurality of groups of spliced pipe pieces, wherein a grouting wall is arranged on the outer side of each pipe piece, the grouting wall is made of a water-permeable grouting material, two lining concretes are arranged on the inner side of each pipe piece, and a waterproof layer is arranged between each pipe piece and the two lining concretes; the waterproof layer is a waterproof board; the waterproof plates are laid according to rings, the waterproof plates and the duct pieces are spliced according to a staggered joint mode, gaps among the duct pieces are covered by the waterproof plates, and meanwhile the waterproof plates are fixed by bolts in the duct pieces; the water-permeable grouting material comprises cement, coarse aggregates, water, bentonite slurry and an additive; the skeleton of the coarse aggregate is 2.5-5mm or 5-10mm or 10-15mm of sand or gravel or waste concrete in construction waste, and the skeleton accounts for 60-75% of the coarse aggregate; the water-cement ratio of the water-permeable grouting material is 0.28-0.33, a water stop strip is arranged between the spliced pipe pieces, and the water stop strip is sleeved into the pipe piece water stop groove before the pipe pieces are spliced.
2. The water-rich stratum duct piece combined structure of claim 1, wherein the water stop strip is made of a water-swellable rubber material.
3. The water-rich formation pipe sheet composite structure of claim 1, wherein the waterproof sheet is made of an ethylene-vinyl acetate copolymer modified PE coil.
4. The water-rich formation pipe piece combined structure as recited in claim 2, wherein the water stop strip is a rectangular frame strip.
5. The water-rich formation pipe piece combined structure as recited in claim 2 or 4, wherein the cross section of the water stop strip is porous.
6. The construction method of the water-rich stratum pipe piece combined structure as claimed in any one of claims 1 to 5, characterized by comprising the following specific steps:
1) splicing the segments by the shield tunneling machine in the tunneling process and arranging a water stop strip between two adjacent segments;
2) arranging a waterproof layer tightly attached to the pipe piece on the inner layer of the pipe piece;
3) arranging annular second-lining concrete along the inner side of the waterproof layer on the inner side of the waterproof layer;
4) and a water-permeable grouting material which is tightly attached to the duct piece is arranged on the outer side of the duct piece and serves as a grouting wall.
7. The construction method according to claim 6, wherein in the step 2), the waterproof boards are spliced or overlapped, and the splicing positions of the waterproof boards are staggered with the splicing positions of the segments.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610140503.8A CN105781575B (en) | 2016-03-11 | 2016-03-11 | Water-rich stratum pipe piece combined structure and construction method thereof |
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| CN201610140503.8A CN105781575B (en) | 2016-03-11 | 2016-03-11 | Water-rich stratum pipe piece combined structure and construction method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107044288A (en) * | 2017-05-22 | 2017-08-15 | 中铁第勘察设计院集团有限公司 | Prefabricated support lining structure and construction method for large-deformation tunnel in soft rock |
| CN109162728B (en) * | 2017-09-25 | 2020-01-10 | 济宁市鸿翔公路勘察设计研究院有限公司 | High-strength anti-seismic tunnel structure |
| CN107575250B (en) * | 2017-09-30 | 2018-10-23 | 康泰卓越（北京）建筑科技有限公司 | Operation phase duct pieces of shield tunnel seam blowby area method for blocking and radical cure method for maintaining |
| CN108868816B (en) * | 2018-07-12 | 2024-05-31 | 广东省水利水电科学研究院 | Shield composite lining water delivery tunnel with inner and outer lining drainage structures |
| CN110939450B (en) * | 2019-11-27 | 2021-04-13 | 中建五局土木工程有限公司 | Shield excavation grouting structure for water-rich disturbance sensitive stratum and construction method |
| CN110905538A (en) * | 2019-12-30 | 2020-03-24 | 中铁隧道局集团有限公司 | Construction method for TBM (Tunnel boring machine) of unfavorable geological section |
| CN111502712B (en) * | 2020-05-29 | 2022-03-15 | 中铁二院工程集团有限责任公司 | Tunnel lining waterproof structure suitable for surrounding rock to be salt rock stratum |
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| CN204646270U (en) * | 2015-01-23 | 2015-09-16 | 北京东方雨虹防水工程有限公司 | Shield method waterproof construction system |
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| CN101012750B (en) * | 2007-02-12 | 2010-05-19 | 上海市隧道工程轨道交通设计研究院 | Combined connection method between lining segment and inner lining in shield tunneling |
| CN203145958U (en) * | 2013-03-01 | 2013-08-21 | 中国建筑第六工程局有限公司 | Tunnel double-layer duct piece ring structure |
| JP2014214423A (en) * | 2013-04-22 | 2014-11-17 | シーアイ化成株式会社 | Tunnel structure and tunnel construction method |
| CN105019919B (en) * | 2015-07-15 | 2017-05-31 | 北京市水利规划设计研究院 | Tunnel and its construction method for transmitting fluid |
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| CN204646270U (en) * | 2015-01-23 | 2015-09-16 | 北京东方雨虹防水工程有限公司 | Shield method waterproof construction system |
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| 无砂大孔混凝土技术在护坡工程中的应用;陈泰苗等;《甘肃水利水电技术》;20100725;第46卷(第7期);第25-26,29页 * |
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