CN112855182A - Duct piece back gap filling system device for shield and method thereof - Google Patents
Duct piece back gap filling system device for shield and method thereof Download PDFInfo
- Publication number
- CN112855182A CN112855182A CN202110070914.5A CN202110070914A CN112855182A CN 112855182 A CN112855182 A CN 112855182A CN 202110070914 A CN202110070914 A CN 202110070914A CN 112855182 A CN112855182 A CN 112855182A
- Authority
- CN
- China
- Prior art keywords
- shield
- slurry
- mud
- plastic
- liquid
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 85
- 229920003023 plastic Polymers 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims abstract description 34
- 239000007924 injection Substances 0.000 claims abstract description 34
- 239000004927 clay Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 230000005641 tunneling Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 25
- 238000009412 basement excavation Methods 0.000 claims description 20
- 238000005086 pumping Methods 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 5
- 239000011800 void material Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 239000002689 soil Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000008674 spewing Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000013589 supplement 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
- E21D9/0642—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
-
- 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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
- E21D9/0873—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines the shield being provided with devices for lining the tunnel, e.g. shuttering
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to shield construction, in particular to a system device and a method for filling gaps behind duct pieces for a shield. The method comprises the following steps: step one, in the shield tunneling process, the stirrer is used for stirring clay according to the mass ratio: water 10: 8, stirring to form plastic slurry; step two, the plastic slurry directly falls into a feed inlet of a clay conveying pump through a stop valve; thirdly, the mud passes through a clay conveying pump outlet in a high-pressure state, passes through a high-pressure pipeline, a pressure sensor, a pneumatic switch and a stop valve on a middle shield; and step four, respectively injecting plastic mud into gaps outside the shield body through the distributed middle shield mud injection holes, and diffusing the plastic mud towards the foremost end and the rearmost end of the shield tail.
Description
Technical Field
The invention relates to shield construction, in particular to a system device and a method for filling gaps behind duct pieces for a shield.
Background
The shield method construction is widely used for construction of urban rail transit tunnel engineering, a shield machine continuously tunnels forwards in a stratum, dregs are continuously discharged through a slag discharging system, and slurry is filled into a gap between a duct piece and an excavation face by adopting synchronous grouting during tunneling so as to ensure stability of the excavation face and control surface subsidence. After the shield is tunneled for a certain distance (generally, the length of the ring segment is 1), segment installation is started at the tail of the shield, and then tunneling and splicing are carried out, so that the ring segment plays a role in supporting the excavated surface when the shield is tunneled forwards. The method comprises the steps of mixing synchronous slurry outside a tunnel (a mixing station), placing the mixed slurry to a transfer station of a shield working well after mixing is completed, then placing the slurry into a transport slurry truck, transporting the slurry into a shield machine trolley, pumping the slurry into a synchronous slurry box of the shield trolley through a slurry guide pump, injecting the slurry into a gap between a duct piece and an excavation surface through a KSP slurry injection pump through a slurry injection hose with the length of 20 meters and a slurry injection pipe in a shield tail along with tunneling of a shield machine, and injecting the synchronous slurry into the gap from the mixing to the last for at least 4-6 hours. In order to prevent the synchronous slurry from solidifying and blocking a grouting pipe, the synchronous slurry is required to have excellent flow plasticity, the initial setting time is generally more than 6 hours, and the final setting time is about 30 hours. The synchronous slurry injected into the back of the pipe piece is mixed with the seepage water in the stratum, so that the synchronous slurry is thinner and the setting time is longer. The full solidification time of the synchronous slurry on the back surface of the duct piece is very long, so that firstly, the buoyancy accumulation of the synchronous slurry on the duct piece after the shield tail is caused, and when the buoyancy accumulation value is larger than the constraint force of the duct piece, the duct piece is staggered, damaged and floated; and secondly, the synchronous grouting inevitably flows into the soil cabin along the shield body due to the flowing state of the synchronous grouting, so that a large amount of synchronous slurry is lost. Particularly, in a shield downhill tunneling section, the loss of synchronous slurry is larger, gaps between the shield excavation surface and the outer diameter of the segment are not fully filled, and secondary grouting is adopted for supplement at present, but the full filling of the gaps is difficult to ensure; thirdly, the synchronous slurry flows to the periphery of the shield body, and the problem that the shield tunneling attitude is difficult to control due to the fact that the shield body is wrapped by the synchronous slurry due to long stop time is caused; fourthly, the gap between the shield excavation surface and the outer diameter of the segment is not fully filled, soil body seeps water to fill the gap and gathers in the soil cabin through the shield body, and then the problems of shield excavation gushing and the like are caused.
In conclusion, the problems of shield tunnel segment floating, ground surface settlement, synchronous slurry loss, shield tail wrapping, shield tunneling gushing and the like are caused by uneven synchronous slurry, overlong solidification, incomplete slurry filling segment and excavation surface and the like. Aiming at various problems in shield construction, a duct piece back gap filling system device for a shield and a construction method are urgently needed to be designed to effectively solve the problems.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a segment back gap filling system device for a shield and a construction method, and mainly solve the problems of shield tunneling spewing, easy encapsulation of a shield body by synchronous grout, upward floating of tunnel segments and the like caused by large water at the rear of the shield, incomplete filling of a shield excavation surface and the outer surfaces of the segments, large synchronous grouting amount loss, and large shield tunneling spewing in the shield range in the urban rail transit tunnel engineering constructed by a shield method.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a system device and a method for filling gaps behind segments for a shield comprise the following steps:
step one, in the shield tunneling process, the stirrer is used for stirring clay according to the mass ratio: water 10: 8, stirring to form plastic slurry;
step two, the plastic slurry directly falls into a feed inlet of a clay conveying pump through a stop valve;
thirdly, the mud passes through a clay conveying pump outlet in a high-pressure state, passes through a high-pressure pipeline, a pressure sensor, a pneumatic switch and a stop valve on a middle shield;
step four, respectively injecting plastic mud into gaps outside the shield body through the distributed middle shield mud injection holes, and diffusing the plastic mud to the foremost end and the rearmost end of the shield tail, wherein the plastic mud is suitable for 105% of theoretical void content under the general condition, and the gaps between the whole shield body and the shield excavation surface are fully filled;
a double-fluid-slurry injection system device is arranged in a trolley of the shield tunneling machine, the outlet of a KSP pump is connected with a shield tail grouting pipe, a tee joint is added in front of the shield tail grouting pipe, a gap is formed between the shield tail grouting pipe and a pipe piece, a 1m < 3 > 3B fluid stirring tank of a stirring system is arranged at a connecting bridge, and the outlet of the stirring tank is sequentially connected with a stop valve D2, a screw pump D3, a pipeline and a one-way valve D4 to be injected into the shield tail grouting pipeline;
uniformly stirring the plastic slurry by using a stirrer; when the shield starts to tunnel, a program starts a clay delivery pump, advances the slurry injection amount (105% of the theoretical amount) according to the shield advancing speed, further adjusts the pumping speed of the clay delivery pump, and high-pressure plastic slurry sequentially circulates through pneumatic switches at different positions to be injected around the middle shield and fills the gap between the shield body and the excavation surface; under the soft rock geological condition, in order to control the ground surface settlement above the shield body, the synchronous mud injection amount is manually adjusted according to the ground surface settlement monitoring data; manually starting a clay delivery pump, manually adjusting the pumping speed of the slurry according to surface settlement data and experience, and injecting high-pressure plastic slurry into the corresponding position of the middle shield through manually selecting the opening position of a pneumatic switch; when the ground surface above the shield body is raised, the mud injection speed is properly reduced, and when the ground surface above the shield body is settled, the mud injection speed is properly increased; the slump of the plastic slurry is preferably 10 cm.
A double-slurry injection system device is installed in the shield tunneling machine trolley: the A liquid (conventional synchronous slurry) in the double-liquid slurry is still injected by a conventional KSP pump D1, a tee joint is added before the slurry enters the shield tail grouting pipe, the B liquid of the double-liquid slurry is mixed with the A liquid, and the B liquid of the double-liquid slurry is injected into a gap between a pipe piece and an excavation surface through the shield tail grouting pipe in the mixing process. A1 m3B liquid stirring tank with a stirring system is arranged at the connecting bridge, polyacrylamide and water are stirred in the tank and are injected into a shield tail grouting pipeline through a stop valve D2, a screw pump D3, a pipeline and a one-way valve D4. When the shield tail grouting pipeline is blocked, and the grouting pressure at the outlet of the screw pump is increased to the highest pressure allowed by the screw pump, the safety valve D5 is opened, and the B liquid flows back to the stirring tank. The grouting speed of the liquid A and the liquid B in the double-liquid slurry can be adjusted in a stepless manner so as to meet different proportions required by grouting the double-liquid slurry.
The invention has the advantages that the plastic slurry is injected into the gap filling system device at the back of the duct piece for the shield under high pressure to fill the gap between the full shield body and the excavation surface, and the synchronous slurry cannot flow into the soil cabin through the outer side of the shield body. The synchronous grouting amount is 105% of the theoretical grouting amount, so that the filling of the gap between the shield excavation surface and the segment outer diameter is full, the synchronous grouting amount is greatly reduced, and the construction cost is reduced. The synchronous slurry is filled and fully solidified outside the duct piece, and no water collecting space is arranged behind the shield tail, so that the probability of shield tunneling gushing is reduced, and the shield construction progress is improved. The shield body is wrapped by plastic slurry, so that the probability of synchronous slurry wrapping the shield body is reduced. Under the condition of soft rock stratum, plastic mud is injected around the shield body, so that the settlement of the earth surface can be effectively controlled, and the safety of nearby buildings (structures) is ensured. The gap filling behind the duct piece adopts two sets of devices of shield body mud injection and synchronous slurry injection to effectively cooperate, and a plurality of difficult problems such as duct piece floating, synchronous slurry loss, shield tunneling gushing and shield body being easily wrapped are basically solved.
Drawings
The specification includes the following two figures:
FIG. 1 is a schematic diagram of a shield and segment structure in shield construction;
FIG. 2 is a diagram of a segment back gap filling system for a shield according to the present invention;
wherein, 1-cutter head, 2-front shield, 3-middle shield, 4-propulsion oil cylinder, 5-shield tail, 6-segment, 7-assembling machine, 8-boss, 9-gap of shield tail, 10-brush of shield tail, 11-agitator, 12-stop valve, 13-clay delivery pump, 14-pressure sensor.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
1) In the shield tunneling process, the stirrer 1 is used for stirring the slurry according to a certain proportion (clay: water 10: 8) stirring into plastic slurry, directly dropping into a feed inlet of a clay conveying pump 3 through a stop valve 2, and respectively injecting the slurry into a gap outside the shield body through a high-pressure pipeline, a pressure sensor 4, a pneumatic switch 5, a stop valve 6 on the middle shield and distributed middle shield mud injection holes 7-10 at the outlet of the clay conveying machine in a high-pressure state, and diffusing towards the foremost end of the front shield and the rearmost end of the tail shield. The plastic mud is generally preferably 105% of theoretical void volume, and the gap between the whole shield body and the shield excavation surface is filled fully.
2) The synchronous mud injection system adopts two control modes of automation and manual operation.
3) The program control principle of the automatic synchronous mud injection auxiliary system is as follows: the plastic slurry is stirred uniformly by a stirrer. When the shield starts to tunnel, the program automatically starts the clay delivery pump 3, calculates the required mud injection amount (105% of theoretical amount) in unit time according to the shield advancing speed, further automatically adjusts the pumping speed of the clay delivery pump 3, and high-pressure plastic mud sequentially circulates through the pneumatic switches 5 at different positions to be injected around the middle shield and fills the gap between the shield body and the excavation surface.
4) Under the soft rock geological condition, in order to control the ground surface settlement above the shield body, the synchronous mud injection amount is manually adjusted according to the ground surface settlement monitoring data.
The principle of program control of a manual synchronous mud injection auxiliary system is as follows: and (3) manually starting the clay delivery pump 3, manually adjusting the pumping speed of the slurry according to the surface settlement data and experience, and injecting the high-pressure plastic slurry into the corresponding position of the middle shield through manually selecting the opening position of the pneumatic switch 5. When the ground surface above the shield body is raised, the mud injection speed is properly reduced, and when the ground surface above the shield body is settled, the mud injection speed is properly increased.
5) The slump of the plastic slurry is preferably 10 cm.
A system device and a method for filling gaps behind segments for a shield comprise the following steps:
step one, in the shield tunneling process, the stirrer is used for stirring clay according to the mass ratio: water 10: 8, stirring to form plastic slurry;
step two, the plastic slurry directly falls into the feeding hole of the clay conveying pump through a stop valve
Thirdly, the mud passes through an outlet of the clay conveyor and passes through a high-pressure pipeline, a pressure sensor, a pneumatic switch and a stop valve on a middle shield in a high-pressure state;
step four, respectively injecting plastic mud into gaps outside the shield body through the distributed middle shield mud injection holes, and diffusing the plastic mud to the foremost end and the rearmost end of the shield tail, wherein the plastic mud is suitable for 105% of theoretical void content under the general condition, and the gaps between the whole shield body and the shield excavation surface are fully filled;
a double-fluid-slurry injection system device is arranged in a trolley of the shield tunneling machine, the outlet of a KSP pump is connected with a shield tail grouting pipe, a tee joint is added in front of the shield tail grouting pipe, a gap is formed between the shield tail grouting pipe and a pipe piece, a 1m < 3 > 3B fluid stirring tank of a stirring system is arranged at a connecting bridge, and the outlet of the stirring tank is sequentially connected with a stop valve D2, a screw pump D3, a pipeline and a one-way valve D4 to be injected into the shield tail grouting pipeline;
uniformly stirring the plastic slurry by using a stirrer; when the shield starts to tunnel, a program starts a clay delivery pump, advances the slurry injection amount (105% of the theoretical amount) according to the shield advancing speed, further adjusts the pumping speed of the clay delivery pump, and high-pressure plastic slurry sequentially circulates through pneumatic switches at different positions to be injected around the middle shield and fills the gap between the shield body and the excavation surface; under the soft rock geological condition, in order to control the ground surface settlement above the shield body, the synchronous mud injection amount is manually adjusted according to the ground surface settlement monitoring data; manually starting a clay delivery pump, manually adjusting the pumping speed of the slurry according to surface settlement data and experience, and injecting high-pressure plastic slurry into the corresponding position of the middle shield through manually selecting the opening position of a pneumatic switch; when the ground surface above the shield body is raised, the mud injection speed is properly reduced, and when the ground surface above the shield body is settled, the mud injection speed is properly increased; the slump of the plastic slurry is preferably 10 cm.
The foregoing merely illustrates some of the principles and functions of the present invention for a duct piece back void filling system apparatus for a shield, and is not intended to limit the present invention to the specific constructions and applications shown and described, and therefore all modifications and equivalents that may be employed, particularly the apparatus and control system for simultaneously injecting bi-hydraulic plastic mud around a shield, are within the scope of the invention as claimed.
Claims (1)
1. A system device and a method for filling gaps behind segments for a shield comprise the following steps:
step one, in the shield tunneling process, the stirrer is used for stirring clay according to the mass ratio: water 10: 8, stirring to form plastic slurry;
step two, the plastic slurry directly falls into a feed inlet of a clay conveying pump through a stop valve;
thirdly, the mud passes through a clay conveying pump outlet in a high-pressure state, passes through a high-pressure pipeline, a pressure sensor, a pneumatic switch and a stop valve on a middle shield;
step four, respectively injecting plastic mud into gaps outside the shield body through the distributed middle shield mud injection holes, and diffusing the plastic mud to the foremost end and the rearmost end of the shield tail, wherein the plastic mud is suitable for 105% of theoretical void content under the general condition, and the gaps between the whole shield body and the shield excavation surface are fully filled; a double-fluid-slurry injection system device is arranged in a trolley of the shield tunneling machine, the outlet of a KSP pump is connected with a shield tail grouting pipe, a tee joint is added in front of the shield tail grouting pipe, a gap is formed between the shield tail grouting pipe and a pipe piece, a 1m < 3 > 3B fluid stirring tank of a stirring system is arranged at a connecting bridge, and the outlet of the stirring tank is sequentially connected with a stop valve D2, a screw pump D3, a pipeline and a one-way valve D4 to be injected into the shield tail grouting pipeline; uniformly stirring the plastic slurry by using a stirrer; when the shield starts to tunnel, a program starts a clay delivery pump, advances the slurry injection amount (105% of the theoretical amount) according to the shield advancing speed, further adjusts the pumping speed of the clay delivery pump, and high-pressure plastic slurry sequentially circulates through pneumatic switches at different positions to be injected around the middle shield and fills the gap between the shield body and the excavation surface; under the soft rock geological condition, in order to control the ground surface settlement above the shield body, the synchronous mud injection amount is manually adjusted according to the ground surface settlement monitoring data; manually starting a clay delivery pump, manually adjusting the pumping speed of the slurry according to surface settlement data and experience, and injecting high-pressure plastic slurry into the corresponding position of the middle shield through manually selecting the opening position of a pneumatic switch; when the ground surface above the shield body is raised, the mud injection speed is properly reduced, and when the ground surface above the shield body is settled, the mud injection speed is properly increased; slump of the plastic slurry is 10 cm; a double-slurry injection system device is installed in the shield tunneling machine trolley: liquid A (conventional synchronous slurry) in the double-liquid slurry is still injected by a conventional KSP pump D1, a tee joint is added before the slurry enters a shield tail grouting pipe, liquid B in the double-liquid slurry is mixed with the liquid A, and the double-liquid slurry is injected into a gap between a pipe piece and an excavation surface through the shield tail grouting pipe in the mixing process; a 1m3B liquid stirring tank with a stirring system is arranged at the connecting bridge, polyacrylamide and water are stirred in the tank and are injected into a shield tail grouting pipeline through a stop valve D2, a screw pump D3, a pipeline and a one-way valve D4; when the shield tail grouting pipeline is blocked and the grouting pressure at the outlet of the screw pump is increased to the highest pressure allowed by the screw pump, the safety valve D5 is opened, and the liquid B flows back to the stirring tank; the grouting speed of the liquid A and the liquid B in the double-liquid slurry can be adjusted in a stepless manner so as to meet different proportions required by grouting the double-liquid slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070914.5A CN112855182A (en) | 2021-01-19 | 2021-01-19 | Duct piece back gap filling system device for shield and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110070914.5A CN112855182A (en) | 2021-01-19 | 2021-01-19 | Duct piece back gap filling system device for shield and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112855182A true CN112855182A (en) | 2021-05-28 |
Family
ID=76007314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110070914.5A Pending CN112855182A (en) | 2021-01-19 | 2021-01-19 | Duct piece back gap filling system device for shield and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112855182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235677A (en) * | 2021-11-29 | 2022-03-25 | 苏州大学 | Testing arrangement of clay material filling performance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672185A (en) * | 2009-10-22 | 2010-03-17 | 上海市第二市政工程有限公司 | Multi-point back synchronous injection method of double circular shield tunnel |
| CN101812994A (en) * | 2010-03-09 | 2010-08-25 | 上海真砂隆福机械有限公司 | Synchronous grouting system |
| KR20180083471A (en) * | 2017-01-12 | 2018-07-23 | 현대건설주식회사 | Test apparatus for predicting performance of soft ground Tunnel Boring Machine |
| CN108868799A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS is synchronous to infuse mud construction and construction auxiliary system |
| CN109026066A (en) * | 2018-08-06 | 2018-12-18 | 济南重工股份有限公司 | A kind of novel shield machine dual-fluid synchronous slip casting system |
-
2021
- 2021-01-19 CN CN202110070914.5A patent/CN112855182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672185A (en) * | 2009-10-22 | 2010-03-17 | 上海市第二市政工程有限公司 | Multi-point back synchronous injection method of double circular shield tunnel |
| CN101812994A (en) * | 2010-03-09 | 2010-08-25 | 上海真砂隆福机械有限公司 | Synchronous grouting system |
| KR20180083471A (en) * | 2017-01-12 | 2018-07-23 | 현대건설주식회사 | Test apparatus for predicting performance of soft ground Tunnel Boring Machine |
| CN108868799A (en) * | 2018-08-03 | 2018-11-23 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS is synchronous to infuse mud construction and construction auxiliary system |
| CN109026066A (en) * | 2018-08-06 | 2018-12-18 | 济南重工股份有限公司 | A kind of novel shield machine dual-fluid synchronous slip casting system |
Non-Patent Citations (1)
| Title |
|---|
| 王成等: "盾构隧道同步注浆新型双液注浆材料的研究与应用", 《隧道建设》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235677A (en) * | 2021-11-29 | 2022-03-25 | 苏州大学 | Testing arrangement of clay material filling performance |
| CN114235677B (en) * | 2021-11-29 | 2023-01-17 | 苏州大学 | Testing arrangement of clay material filling performance |
| WO2023092906A1 (en) * | 2021-11-29 | 2023-06-01 | 苏州大学 | Device for testing filling performance of clay material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102425427B (en) | Method for constructing tunnel by utilizing shield empty-pushing crossing mine method | |
| CN110374606B (en) | Advanced grouting pressure maintaining construction method for broken seabed stratum of slurry shield | |
| CN109594990B (en) | Large-section jacking pipe construction method for complex stratum | |
| CN112012753B (en) | Shield tunneling machine starting method based on special-shaped extension steel ring | |
| CN110864162B (en) | Construction process of argillaceous sandstone geological pipe jacking | |
| CN110761797B (en) | Construction method for shield air-pushing through mine tunnel | |
| CN110130936B (en) | Construction method for sudden encountering untreated karst cave or crack in shield tunneling process | |
| CN101982688A (en) | Large-caliber long-distance steel jacking pipe construction system | |
| CN107143342A (en) | A kind of sediment improvement system of multi-cutter-disk development machine | |
| CN111425207A (en) | Inclined shaft construction method and equipment | |
| CN109681236A (en) | Big cross section water-rich sand layer shield driving synchronous grouting method | |
| CN108868799A (en) | A kind of earth pressure balanced shield, EPBS is synchronous to infuse mud construction and construction auxiliary system | |
| CN111997654A (en) | Shield constructs quick-witted slip casting system | |
| CN111997653A (en) | Shield tunnel segment wall post-grouting construction method | |
| CN110905533B (en) | Tunneling method for composite stratum of EPB-TBM dual-mode shield tunneling machine | |
| CN113217037B (en) | Backfill system and backfill method for single shield TBM or behind shield segment wall | |
| CN108590716A (en) | A kind of tunnel crosses rich water tomography tree root type and dredges water blockoff integral construction method | |
| CN112855182A (en) | Duct piece back gap filling system device for shield and method thereof | |
| CN114517683A (en) | Shield tail double-liquid synchronous grouting mixer | |
| CN113756841A (en) | Advanced grouting method for shield construction in upper soft and lower hard stratum | |
| CN108060931B (en) | Novel grouting system and grouting process for effectively controlling ground subsidence | |
| CN113153321B (en) | Muck improvement system for shield construction and construction method thereof | |
| CN208918541U (en) | A kind of device for abolishing cutterhead mud cake | |
| CN206917664U (en) | A kind of sediment improvement system of multi-cutter-disk development machine | |
| CN219258882U (en) | Material conveying device for filling mining |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210528 |
|
| WD01 | Invention patent application deemed withdrawn after publication |