CN111365011A - Shield tunneling machine with function of rapidly freezing tunnel face and construction method - Google Patents
Shield tunneling machine with function of rapidly freezing tunnel face and construction method Download PDFInfo
- Publication number
- CN111365011A CN111365011A CN202010308395.7A CN202010308395A CN111365011A CN 111365011 A CN111365011 A CN 111365011A CN 202010308395 A CN202010308395 A CN 202010308395A CN 111365011 A CN111365011 A CN 111365011A
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- freezing
- shield
- tunnel face
- pipe
- function
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- 238000007710 freezing Methods 0.000 title claims abstract description 129
- 230000008014 freezing Effects 0.000 title claims abstract description 129
- 230000005641 tunneling Effects 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 17
- 238000012423 maintenance Methods 0.000 claims abstract description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 43
- 229910052757 nitrogen Inorganic materials 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 238000011161 development Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
- E21D9/002—Injection methods characterised by the chemical composition used
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0671—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end with means for consolidating the rock in front of the shield by injection of consolidating substances through boreholes
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a shield tunneling machine with a function of quickly freezing a tunnel face and a construction method. The invention realizes the quick positioning of pre-drilling freezing holes in the shield machine, the arrangement of freezing pipelines, the reinforcement of the tunnel face in front of the shield machine, the maintenance in the shield machine, the safe opening of the warehouse, the replacement of cutters and the reinforcement when entering and exiting the tunnel portal.
Description
Technical Field
The invention relates to the technical field of tunnel boring machines, in particular to a shield machine with a function of quickly freezing a tunnel face and a construction method.
Background
The artificial stratum freezing method is a special construction technology which uses an artificial refrigeration technology to freeze water in the stratum and increase the strength and stability of the water so as to facilitate underground engineering excavation construction under the protection of a frozen wall, is a temporary reinforcement technology, and can adopt a forced thawing technology to melt the water when the reinforcement strength is not needed. The freezing method construction has a history of more than 100 years, is widely used in China for more than 40 years, and is applied to subway construction in Shanghai, Beijing and the like since 1992.
In the prior art, although a liquid nitrogen freezing method is adopted to reinforce a tunnel portal when a shield enters or exits a tunnel, freezing pipelines are arranged on the ground or the ground surface, and the ground space is occupied for a long time; in shield construction, the ground does not have the condition of freezing construction due to traffic flow limitation.
In the prior patents of 'freezing cutterhead arrangement structure CN 201821967228' and the like, the shield cutterhead with the freezing function is adopted to freeze the tunnel face, so that the aims of changing cutters and overhauling the cutterhead in the shield tunneling machine are fulfilled, but the technology needs to design and manufacture the freezing cutterhead in advance, and the cutterhead with the freezing function is designed, the manufacturing cost is high, and the period is long; meanwhile, the brine freezing technology is adopted, so that the freezing period is long and the efficiency is low.
Disclosure of Invention
The invention provides a shield tunneling machine with a function of quickly freezing a tunnel face and a construction method, which are used for quickly pre-drilling a freezing hole in the shield tunneling machine for positioning, arranging a freezing pipeline, reinforcing the tunnel face in front of the shield tunneling machine, and realizing maintenance in the shield tunneling machine, safe opening and replacement of a cutter and reinforcement when a tunnel door is accessed.
The technical scheme for realizing the invention is as follows:
a shield machine with a function of quickly freezing a tunnel face comprises a shield machine cutter head cutter, a main driving device, a spiral conveyor, a front shield, a middle shield, a tail shield, a segment erector, a liquid nitrogen tank and a portable propulsion device, wherein the liquid nitrogen tank is connected with a freezer arranged at the front part of the shield machine through a flow dividing valve and a liquid supply hose.
The portable propulsion device comprises a propulsion device support, an adjusting oil cylinder and an oil cylinder fixing support are arranged on the propulsion device support, an oil inlet and outlet pipe and a propulsion oil cylinder are arranged on the oil cylinder fixing support, and the propulsion oil cylinder is connected with an oil cylinder piston rod.
The freezer consists of a front freezing pipe and a plurality of connecting rods with standard lengths, the length of each connecting rod with the standard length is 1m-1.5m, and male and female threaded joints are respectively adopted at two ends of each connecting rod with the standard length, so that the connection and the sealing effect are facilitated; the front end of the standard length connecting rod is provided with a connecting part pipe thread and a front freezing pipe, and the tail end of the last section of the standard length connecting rod is provided with a tail sealing plate, an exhaust pipe and a liquid supply pipe.
The foremost end of the front freezing pipe is of a conical structure and is convenient to insert into a soil body, and the rear end of the front freezing pipe is of a female thread form and is convenient to connect with a next section of connecting rod with a standard length. The front freezing pipe is provided with a plurality of air holes, and liquid nitrogen can permeate into the soil body through the air holes, so that the freezing effect is accelerated. The distance from the bottom of the liquid supply pipe to the conical structure at the foremost end of the front freezing pipe is not less than three times of the diameter of the freezer.
The liquid supply pipe is inserted into a standard length connecting rod.
The construction method of the shield machine with the function of quickly freezing the tunnel face comprises the following steps:
(a) designing a freezing hole position and arrangement scheme: is divided into a palm face central part freezing hole and a palm face peripheral part freezing hole; pressing freezers from the pre-reserved hole position of the front shield partition plate to the freezing hole at the center part of the tunnel face, and pressing freezers from the advanced grouting hole in the shield body to the freezing hole at the peripheral part of the tunnel face;
(b) a combined freezer is adopted, and a freezing hole is pre-drilled and then pressed into the freezer according to the length conditions of the stratum and the freezing hole, or the freezing hole is directly pressed into the freezer;
(c) after the portable propelling device extends out of and is pressed into the standard length connecting rod, the portable propelling device returns, the next section of standard length connecting rod is installed, the standard length connecting rod is pressed into the portable propelling device again, and the process is repeated;
(d) arranging a liquid supply pipe and an exhaust pipe according to the freezing depth;
(e) setting temperature measuring holes and arranging temperature measuring components;
(f) a liquid supply hose is adopted to connect a liquid supply pipe and a liquid nitrogen tank, and exhaust gas of an exhaust pipe is collected and uniformly exhausted out of the tunnel;
(g) the outlet pressure of the liquid nitrogen tank is kept at 0.3-0.5Mpa, the outlet temperature of the liquid nitrogen tank is controlled at-140 ℃ to-170 ℃, and the temperature difference of each freezing loop is controlled within +/-5 ℃ by an adjusting valve;
(h) detecting the temperature of the temperature measuring hole in real time, and judging the development condition of the freezing intersection ring;
(i) after the freezing intersection ring is formed, the operations of maintenance in the shield tunneling machine, safe opening and cutter replacement can be carried out in front of the cutter head.
And (a) respectively arranging a freezing pipe at the center of the palm surface and a freezing pipe at the periphery of the palm surface at the freezing hole at the center of the palm surface and the freezing hole at the periphery of the palm surface, wherein the freezing pipe at the center of the palm surface and the freezing pipe at the periphery of the palm surface are both connected with a freezer.
The portable propulsion device moves directions according to the position of the tunnel face freezing holes, and is fixed on the segment erector when the tunnel face peripheral freezing holes are arranged at the peripheral position of the shield tunneling machine; when the central freezing hole of the tunnel face is arranged in the central area of the shield machine, the portable propulsion device is arranged on the partition plate of the anterior shield.
Freezing holes are formed outwards from the center of the tunnel face in the step (a) and are arranged in a plurality of circular rings; the spacing distance of each circular ring is 0.8-1.3 m; each ring is uniformly provided with a plurality of freezing holes, and the center distance of each freezing hole is 0.7-1.0 m.
The invention has the beneficial effects that:
1) the invention realizes the quick positioning of pre-drilling freezing holes in the shield machine, the arrangement of freezing pipelines, the reinforcement of the tunnel face in front of the shield machine, the maintenance in the shield machine, the safe opening of the warehouse, the replacement of cutters and the reinforcement when entering and exiting the tunnel portal.
2) The invention realizes that the pipeline freezing tunnel face is arranged in the shield tunneling machine without occupying the ground space; is not limited by traffic flow.
3) Compared with the existing freezing cutter head technology, the invention does not need to modify parts such as the cutter head in the shield tunneling machine in advance, the freezer is directly inserted into the palm surface, and the ultra-low temperature liquid nitrogen freezing method is adopted, so that the freezing period is short, and the efficiency is more than 5 times of that of the shield tunneling machine head freezing technology with the freezing function.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of the present invention.
Fig. 2 is a schematic structural diagram of the propulsion device.
Fig. 3 is a schematic view of the structure of the freezer.
Fig. 4 is a schematic view of a tunnel face layout freezer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the shield machine with the function of rapidly freezing the tunnel face comprises a shield machine cutter head cutter 110, a main driving device, a screw conveyor 113, a front shield 111, a middle shield 112, a tail shield 114, a segment erector 104, a liquid nitrogen tank and a portable propulsion device 103, wherein the liquid nitrogen tank is connected with a liquid supply pipe of a freezer 102 arranged at the front part of the shield machine through a diverter valve and a liquid supply hose, and is used for uniformly collecting waste gas of an exhaust pipe in the freezer 102 and then carrying out centralized treatment. And the heat-insulating layer is arranged outside the liquid supply hose, so that the cold loss of the pipeline is reduced.
As shown in fig. 2, the portable propulsion device 103 includes a propulsion device support 205, the propulsion device support 205 is provided with an adjusting cylinder 206 and a cylinder fixing bracket 204, the cylinder fixing bracket 204 is provided with an oil inlet and outlet pipe 203 and a propulsion cylinder 202, and the propulsion cylinder 202 is connected with a cylinder piston rod 201; according to the direction of installing the freezer 102, the direction of the piston rod 201 of the oil cylinder is adjusted to be consistent with the direction of the freezer 102 by adjusting the extending position of the piston rod of the oil cylinder 206, after the direction of the piston rod 201 is adjusted to a proper position, the oil cylinder fixing support 204 is locked, and the direction of the piston rod 201 of the oil cylinder is fixed, so that the freezer 102 is convenient to press fit.
The freezing pipe 105 at the center of the palm surface and the freezing pipe 106 at the periphery of the palm surface are respectively arranged at the freezing hole at the center of the palm surface and the freezing hole at the periphery of the palm surface, and the freezing pipe 105 at the center of the palm surface and the freezing pipe 106 at the periphery of the palm surface are both connected with the freezer 102.
The freezer 102 is composed of a front freezing pipe 301 and a plurality of standard length connecting rods 303 (fig. 3), the front ends of the standard length connecting rods 303 are provided with connecting part pipe threads 302, each section of standard length connecting rod 303 is connected through the pipe threads 302, and the tail end of the last section of standard length connecting rod 303 is provided with a tail sealing plate 306, an exhaust pipe 304 and a liquid supply pipe 305.
The liquid nitrogen is pressed into the freezer 102 through the diverter valve and the liquid supply pipe 305 by the liquid nitrogen tank, the liquid nitrogen is quickly gasified in the freezer 102, a plurality of air holes are formed in the front freezing pipe 301, and low-temperature nitrogen can permeate into the soil body through the air holes to realize quick cooling of the soil body.
The end of the front freezing pipe 301 is of a conical structure, and a plurality of air holes are formed in the end.
The distance from the bottom of the liquid supply pipe 305 to the conical structure at the foremost end of the front freezing pipe is not less than three times the diameter of the freezer.
The construction method of the shield machine with the function of quickly freezing the tunnel face comprises the following steps:
(a) designing a freezing hole position and arrangement scheme: is divided into a palm face central part freezing hole and a palm face peripheral part freezing hole; pressing the freezers 102 from the reserved holes of the partition plate of the front shield 111 to the freezing holes at the center part of the tunnel face, and pressing the freezers 102 from the front grouting holes in the shield body to the freezing holes at the peripheral part of the tunnel face; the portable propulsion device 103 moves directions according to the positions of the tunnel face freezing holes, and when the tunnel face peripheral freezing holes are arranged at the peripheral position of the shield tunneling machine, the portable propulsion device 103 is fixed on the segment erector 104; when freezing holes at the central part of the tunnel face are arranged in the central area of the shield tunneling machine, the portable propulsion device 103 is arranged on a partition plate of a front shield 111;
(b) a combined freezer is adopted, freezing holes are pre-drilled according to the length conditions of the stratum and the freezing holes and then are pressed into the freezer 102, or the freezing holes are directly pressed into the freezer 102;
(c) after the portable propulsion device 103 extends out and is pressed into one section of the freezer 102, the portable propulsion device 103 retracts, the next section of the freezer is installed, the freezer is pressed into the next section of the freezer, and the steps are repeated;
(d) arranging a liquid supply pipe and an exhaust pipe according to the freezing depth;
(e) setting temperature measuring holes and arranging temperature measuring components;
(f) a liquid supply hose is adopted to connect a liquid supply pipe and a liquid nitrogen tank, and exhaust gas of an exhaust pipe is collected and uniformly exhausted out of the tunnel;
(g) the outlet pressure of the liquid nitrogen tank is kept at 0.3-0.5Mpa, the outlet temperature of the liquid nitrogen tank is controlled at-140 ℃ to-170 ℃, and the temperature difference of each freezing loop is controlled within +/-5 ℃ by an adjusting valve;
(h) detecting the temperature of the temperature measuring hole in real time, and judging the development condition of the freezing intersection ring;
(i) after the freezing intersection ring is formed, the operations of maintenance in the shield tunneling machine, safe opening and cutter replacement can be carried out in front of the cutter head.
As shown in fig. 4, in the step (a), freezing holes are formed outwards from the center of the tunnel face and are arranged in a multi-channel circular ring shape, and in fig. 4, a first freezing ring 401, a second freezing ring 402, a third freezing ring 403, a fourth freezing ring 404 and an excavation diameter 405 are formed; the spacing distance of each circular ring is 0.8-1.3 m; each ring is uniformly provided with a plurality of freezing holes, and the center distance of each freezing hole is 0.7-1.0 m.
When the shield machine leaves a tunnel portal, a first frozen ring 401 needs to be frozen, and when a cutter is replaced in the tunnel of the shield machine, the full faces of the first frozen ring 401, a second frozen ring 402, a third frozen ring 403 and a fourth frozen ring 404 need to be frozen.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a shield constructs machine with quick frozen face function, includes shield constructs machine cutter head cutter (110), main drive arrangement, screw conveyer (113), anterior shield (111), well shield (112), tail shield (114) and section of jurisdiction erector (104), its characterized in that: the device also comprises a liquid nitrogen tank and a portable propelling device (103), wherein the liquid nitrogen tank is connected with a freezer (102) arranged at the front part of the shield tunneling machine through a shunt valve and a liquid supply pipe (305).
2. The shield machine with the function of quickly freezing the tunnel face according to claim 1, characterized in that: the portable propulsion device (103) comprises a propulsion device support (205), an adjusting oil cylinder (206) and an oil cylinder fixing support (204) are arranged on the propulsion device support (205), an oil inlet and outlet pipe (203) and a propulsion oil cylinder (202) are arranged on the oil cylinder fixing support (204), and the propulsion oil cylinder (202) is connected with an oil cylinder piston rod (201).
3. The shield machine with the function of quickly freezing the tunnel face according to claim 1, characterized in that: the freezer (102) is composed of a front freezing pipe (301) and a plurality of standard length connecting rods (303), the front ends of the standard length connecting rods (303) are provided with connecting part pipe threads (302), and the tail end of the last section of standard length connecting rod (303) is provided with a tail sealing plate (306), an exhaust pipe (304) and a liquid supply pipe (305).
4. The shield machine with the function of quickly freezing the tunnel face of claim 3, wherein: the end part of the front freezing pipe (301) adopts a conical structure, and a plurality of air holes are formed in the end part.
5. The shield machine with the function of quickly freezing the tunnel face of claim 4, wherein: the liquid supply pipe (305) is inserted into a standard length connecting rod (303).
6. The construction method of the shield tunneling machine with the function of rapidly freezing the tunnel face as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
(a) designing a freezing hole position and arrangement scheme: is divided into a palm face central part freezing hole and a palm face peripheral part freezing hole; pressing freezers (102) from the reserved holes of the partition plate of the front shield (111) to the freezing holes at the center part of the tunnel face, and pressing freezers (102) from the front grouting holes in the shield body to the freezing holes at the periphery part of the tunnel face;
(b) a combined freezer is adopted, and a freezing hole is pre-drilled and then pressed into the freezer (102) according to the length conditions of the stratum and the freezing hole, or the freezing hole is directly pressed into the freezer (102);
(c) after the portable propelling device (103) extends out and is pressed into the standard length connecting rod (303), the portable propelling device (103) retracts, the next section of standard length connecting rod (303) is installed, the standard length connecting rod (303) is pressed into the portable propelling device, and the process is repeated;
(d) arranging a liquid supply pipe and an exhaust pipe according to the freezing depth;
(e) setting temperature measuring holes and arranging temperature measuring components;
(f) a liquid supply hose is adopted to connect a liquid supply pipe and a liquid nitrogen tank, and exhaust gas of an exhaust pipe is collected and uniformly exhausted out of the tunnel;
(g) the outlet pressure of the liquid nitrogen tank is kept at 0.3-0.5Mpa, the outlet temperature of the liquid nitrogen tank is controlled at-140 ℃ to-170 ℃, and the temperature difference of each freezing loop is controlled within +/-5 ℃ by an adjusting valve;
(h) detecting the temperature of the temperature measuring hole in real time, and judging the development condition of the freezing intersection ring;
(i) after the freezing intersection ring is formed, the operations of maintenance in the shield tunneling machine, safe opening and cutter replacement can be carried out in front of the cutter head.
7. The construction method of the shield tunneling machine with the function of quickly freezing the tunnel face according to claim 6, characterized in that: in the step (a), a freezing pipe (105) at the center of the palm surface and a freezing pipe (106) at the periphery of the palm surface are respectively arranged at the freezing hole at the center of the palm surface and the freezing hole at the periphery of the palm surface, and the freezing pipe (105) at the center of the palm surface and the freezing pipe (106) at the periphery of the palm surface are both connected with the freezer (102).
8. The construction method of the shield tunneling machine with the function of quickly freezing the tunnel face according to claim 6, characterized in that: the portable propulsion device (103) moves directions according to the position of the tunnel face freezing hole, and when the tunnel face peripheral freezing hole is arranged at the peripheral position of the shield tunneling machine, the portable propulsion device (103) is fixed on the segment erector (104); when freezing holes in the center of the tunnel face are arranged in the center of the shield tunneling machine, the portable propulsion device (103) is arranged on a partition plate of the anterior shield (111).
9. The construction method of the shield tunneling machine with the function of quickly freezing the tunnel face according to claim 6, characterized in that: freezing holes are formed outwards from the center of the tunnel face in the step (a) and are arranged in a plurality of circular rings; the spacing distance of each circular ring is 0.8-1.3 m; each ring is uniformly provided with a plurality of freezing holes, and the center distance of each freezing hole is 0.7-1.0 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010308395.7A CN111365011B (en) | 2020-04-18 | 2020-04-18 | Shield tunneling machine with function of rapidly freezing tunnel face and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010308395.7A CN111365011B (en) | 2020-04-18 | 2020-04-18 | Shield tunneling machine with function of rapidly freezing tunnel face and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111365011A true CN111365011A (en) | 2020-07-03 |
| CN111365011B CN111365011B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010308395.7A Active CN111365011B (en) | 2020-04-18 | 2020-04-18 | Shield tunneling machine with function of rapidly freezing tunnel face and construction method |
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| Country | Link |
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| CN (1) | CN111365011B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343606A (en) * | 2020-11-12 | 2021-02-09 | 上海隧道工程有限公司 | Inclined grouting pipe jacking machine advanced grouting device and grouting method |
| CN115506799A (en) * | 2022-10-11 | 2022-12-23 | 上海弥涅科技有限公司 | A silt clearing device for shield constructs construction |
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| JPH0434199A (en) * | 1990-05-31 | 1992-02-05 | Komatsu Ltd | Partially frozen boring method for earth pressure type shield machine |
| CN201031387Y (en) * | 2007-04-18 | 2008-03-05 | 上海地铁运营有限公司 | Liquid nitrogen freeze coagulation device |
| CN102720506A (en) * | 2012-05-31 | 2012-10-10 | 中铁隧道股份有限公司 | Method for replacing tail brush in shield tunnel through liquid nitrogen freezing |
| CN103016012A (en) * | 2012-12-28 | 2013-04-03 | 中煤第五建设有限公司 | Freezing reinforcement method for controlling multidirectional risk in shield tunneling machine going in or out of tunnel |
| CN206346745U (en) * | 2016-12-30 | 2017-07-21 | 中铁工程装备集团有限公司 | A kind of shield cutter and shield machine with freezing function |
| CN110080786A (en) * | 2019-04-04 | 2019-08-02 | 中船重型装备有限公司 | A kind of shield machine and its guard method with end face freezing system |
-
2020
- 2020-04-18 CN CN202010308395.7A patent/CN111365011B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0434199A (en) * | 1990-05-31 | 1992-02-05 | Komatsu Ltd | Partially frozen boring method for earth pressure type shield machine |
| CN201031387Y (en) * | 2007-04-18 | 2008-03-05 | 上海地铁运营有限公司 | Liquid nitrogen freeze coagulation device |
| CN102720506A (en) * | 2012-05-31 | 2012-10-10 | 中铁隧道股份有限公司 | Method for replacing tail brush in shield tunnel through liquid nitrogen freezing |
| CN103016012A (en) * | 2012-12-28 | 2013-04-03 | 中煤第五建设有限公司 | Freezing reinforcement method for controlling multidirectional risk in shield tunneling machine going in or out of tunnel |
| CN206346745U (en) * | 2016-12-30 | 2017-07-21 | 中铁工程装备集团有限公司 | A kind of shield cutter and shield machine with freezing function |
| CN110080786A (en) * | 2019-04-04 | 2019-08-02 | 中船重型装备有限公司 | A kind of shield machine and its guard method with end face freezing system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343606A (en) * | 2020-11-12 | 2021-02-09 | 上海隧道工程有限公司 | Inclined grouting pipe jacking machine advanced grouting device and grouting method |
| CN112343606B (en) * | 2020-11-12 | 2023-10-13 | 上海隧道工程有限公司 | Pipe jacking machine advanced grouting device capable of performing inclined grouting and grouting method |
| CN115506799A (en) * | 2022-10-11 | 2022-12-23 | 上海弥涅科技有限公司 | A silt clearing device for shield constructs construction |
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| Publication number | Publication date |
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| CN111365011B (en) | 2022-02-08 |
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