CN104005769A - Waterless sandy cobble stratum shield cabin-opening tool changing method - Google Patents
Waterless sandy cobble stratum shield cabin-opening tool changing method Download PDFInfo
- Publication number
- CN104005769A CN104005769A CN201410114219.4A CN201410114219A CN104005769A CN 104005769 A CN104005769 A CN 104005769A CN 201410114219 A CN201410114219 A CN 201410114219A CN 104005769 A CN104005769 A CN 104005769A
- Authority
- CN
- China
- Prior art keywords
- cabin
- opening
- shield
- soil
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a waterless sandy cobble stratum shield cabin-opening tool changing method. The method includes the steps of 1, injecting bentonite into a cutterhead and a soil cabin and aerating to form a mud membrane; 2, utilizing a shield advance grouting hole for grouting and reinforcing soil surround the shield; 3, reinforcing and sealing shield tunnel face soil; 4, cleaning mud cakes at the cutterhead; 5, detecting and changing the tool; 6, performing processing measurement when the mud membrane is broken; 7, recovering excavation. The method has the advantages that cabin-opening tool change is performed in the sandy cobble stratum in normal pressure, and normal-pressure opened cabin reinforcement is adopted; compared with the method of opening a cabin with pressure and opening the cabin in normal pressure after grounding reinforcement, the method has the advantages that the cabin opening position is more flexible, influence on the ground is reduced, and soil reinforcement is more economic, and safe and reliable guarantee is provided for cabin opening when the shield penetrates important buildings.
Description
Technical field
The present invention relates to technical field of building construction, relate in particular to a kind of the open the cabin method of tool changing of shield in sandy cobble with no water.
Background technology
Shield machine is when cutting the soil body in layer of sand, gravel layer, due to cutter head of shield machine, cutter constantly and soil body friction, collision, be Suporting structure parts the most easy to wear.The mode of cutter maintenance has vertical shaft maintenance, pressurization is opened the cabin, normal pressure opens the cabin, need to carry out soil stabilization before overhauling.In construction, often according to construction experience, calculate the position that need to carry out cutter maintenance, but due to the complexity of geological condition, often there is certain Unpredictability the maintenance position of cutter, some position does not possess ground and reinforces condition, need carry out reinforcing cabin in.The normal pressure reinforced construction method in cabin that opens the cabin, than with pressure open the cabin and ground reinforce after normal pressure open the cabin, it is more flexible that it has the position of opening the cabin, over the ground face ring less, the feature that soil stabilization is more economic.
Summary of the invention
The object of this invention is to provide a kind of the open the cabin method of tool changing of shield in sandy cobble with no water, to overcome currently available technology above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
The open the cabin method of tool changing of shield in sandy cobble with no water, comprises the following steps:
Step 1, forms mud film: in cutterhead and native cabin, squeeze into swell soil, and aerating simultaneously, soil pressure in raising, and maintain 30 minutes, and form mud film, utilize shield structure forward probe hole, adopt swell soil to fill in advance the space between shield body and excavation profile;
Step 2, reinforces the shield body periphery soil body: in shield structure pre-grouting hole, set seamless steel pipe, and inject Modified Silicate Sodium Grout, controlled pressure, at 0.3Mpa, is reinforced the shield body periphery soil body, prevents that the cutterhead rear portion soil body from dropping;
Step 3, reinforce and the sealing shield structure face soil body: rotating cutter-head is not unearthed, until upper soil pressure is reduced to 0.01bar, then nature cooling is carried out in native cabin and cutterhead, after having lowered the temperature, in the opening part soil body, squeeze into seamless steel pipe, and inject Modified Silicate Sodium Grout, then to opening part, from top to bottom utilize flexible plug to carry out shutoff to cutterhead, and utilize rigid plug that opening part is firmly sealed, and seamless steel pipe and native cabin inwall are welded together, in the process of being unearthed, keep each opening all constantly in sealed condition;
Step 4, cleaning mud cake: utilize giant to remove mud cake, and check and record tool wear situation in removing mud cake process;
Step 5, cutter inspection and replacing: according to the tool wear situation checking in step 4, under the cooperation of Chain block, the cutter that weares and teares is changed;
Step 6, if occurred in above-mentioned steps, damaged situation appears in face mud film, needs to carry out following steps:
A, the construction that stops opening the cabin immediately, withdraw from native cabin, closes Ren Zha;
B, again in cutterhead and native cabin, squeeze into the swell soil after fermentation, aerating simultaneously, more than upper soil pressure is risen to 0.5bar, maintains 30 minutes;
C, again according to the set flow process of opening the cabin, the operation of opening the cabin, check breakage mud film repairing situation, if mud membrane stage is good, proceed the operation of opening the cabin, if it is not good that mud film is repaired, improve upper soil pressure value, extend after the dwell time, then row checks mud film situation, until mud membrane stage meets, stablize after face requirement, proceed the operation of opening the cabin;
Step 7, recovers driving: one-tenth bag swell soil is inserted in the native cabin of shield structure, until cannot fill, closed hatch door and recover to advance, advance initially and be not unearthed, while aerating advances, until upper soil pressure is set up to 0.2 ~ 0.6bar, recovers normal propelling.
Further, the mixed liquor of described Modified Silicate Sodium Grout for evenly being mixed according to the weight ratio of 2:1 by water glass and the concentrated sulfuric acid.
Further, in described step 1, to the bentonitic amount of squeezing in cutterhead and native cabin, be 30m3, viscosity is 65s, fill shield body with excavate between profile space time the bentonitic amount that adopts be 3 m3, viscosity is 65s.
Further, the length of the seamless steel pipe setting in shield structure pre-grouting hole in described step 2 is 3.5 ~ 4m, and diameter is φ 42.
Further, the swell soil that in described step 6, the swell soil after fermentation is 65s for the viscosity of fermentation after 24 hours.
Further, the flexible plug using in described step 3 is woven bag and the thick sponge of 20cm, and the rigid plug using is 2cm plank, 10cm*10cm flitch, φ 42 steel pipes and jackscrew.
Further, described step 4 comprises the following steps:
A, utilize giant to remove center mud cake, if mud cake is harder, need to adopt pneumatic pick to abolish, scale removal process is observed face soil stabilization situation;
After b, center mud cake removal, continue Cleaning cutter pan first half mud cake, every cleaning one place shutoff one place, checks simultaneously and records the abrasion condition of cutter;
C, soil body cabin in is successively cleared up in artificial pack until bottom is continued cleaning with said method and remained cutterhead place mud cake.
Further, described step 5 comprises the following steps:
A, according to tool wear situation, utilize the maintenance control panel rotating cutter-head in main chamber, the cutter that need are changed goes to the position of hope.
B, the required instrument of tool changing, plant equipment and new cutter are transported to main chamber.
C, under the cooperation of Chain block, cutter is dismantled by unscrewing its set bolt, and the cutter more renewing, the tightening torque of reusing regulation after changing cutter tights a bolt and is tightened.
Beneficial effect of the present invention is: realize in sand-pebble layer the normal pressure tool changing of opening the cabin, adopt normal pressure to open the cabin reinforces in cabin simultaneously, than with pressure opening the cabin, open the cabin with the rear normal pressure of ground reinforcing, it is more flexible that it has the position of opening the cabin, face rings less over the ground, the feature that soil stabilization is more economic, opening the cabin when wearing important construction of structures under shield structure provides safe and reliable assurance.
Accompanying drawing explanation
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is opening part shutoff mode schematic diagram.
In figure:
1, the thick sponge of woven bag and 20cm; 2,2cm plank; 3,10cm*10cm flitch; 4, φ 42 steel pipes; 5, jackscrew.
The specific embodiment
The open the cabin method of tool changing of a kind of shield in sandy cobble with no water described in the embodiment of the present invention, comprises the following steps particularly:
1, form mud film
In cutterhead and native cabin, squeeze into the swell soil that 30m3 viscosity is 65s, aerating simultaneously, more than upper soil pressure is risen to 0.5bar, maintains 30 minutes, forms mud film.Utilize shield structure forward probe hole, adopt the bentonite slurry that 3m3 viscosity is 65s to fill in advance the space between shield body and excavation profile, further reduce the rate of settling and amplitude.
2, reinforce shield body periphery
Utilize shield structure pre-grouting hole, set φ 42 seamless steel pipes of 3.5 ~ 4m, and injected water glass: the Modified Silicate Sodium Grout that the concentrated sulfuric acid is 2:1, pressure is controlled at 0.3MPa, every hole grouting amount is about 0.5m3, reinforces the shield body periphery soil body, prevents that the cutterhead rear portion soil body from dropping.
3, reinforce and seal the shield structure face soil body
1. after 30 minutes, rotor dish is not unearthed, until upper soil pressure is reduced to 0.01bar, is ready in advance the instrument of shutoff opening and cleaning mud cake simultaneously.In upper soil pressure, be reduced to after 0.01bar, workman enters Ren Zha main chamber, slowly opens the sluices, and Tu Cang and cutterhead are carried out to nature cooling.
2. after having lowered the temperature, workman enters Tu Cang, astrodome inner opening enters Tu Kou position, utilize φ 25 seamless steel pipes to squeeze into 60cm in the opening part soil body, injected water glass: the Modified Silicate Sodium Grout that the concentrated sulfuric acid is 2:1, guarantees face soil stabilization, conduit spacing 10cm, each opening part need be broken pipe and be about 5, and every grouting amount is about 0.2m3.
3. as shown in Figure 1, to opening part, from top to bottom utilize woven bag and the thick sponge of 20cm to carry out shutoff to cutterhead, and utilize 2cm plank and 100*100 flitch, φ 42 steel pipes and jackscrew that opening part is firmly sealed, and steel pipe is connected with the inwall spot welding of native cabin.In the process of being unearthed, often expose an opening and stop being immediately unearthed and shutoff, according to said method from top to bottom carry out, amount to 4, shutoff cutterhead top opening, each opening need be used 2 cover shutoff planks.
4, cleaning mud cake construction
1. utilize giant to remove center mud cake, if mud cake is harder, need to adopt pneumatic pick to abolish, in scale removal process, send special messenger to observe face soil stabilization situation.
2. after the mud cake removal of center, continue Cleaning cutter pan first half mud cake, every cleaning one place shutoff one place, checks simultaneously and records the abrasion condition of cutter.
3. artificial pack is successively cleared up the soil body in cabin until bottom remains cutterhead place mud cake with said method cleaning.
5, cutter inspection and replacing construction
1. in mud cake scale removal process, check and record tool wear degree.
2. according to inspection situation, use if desired the maintenance control panel rotating cutter-head in main chamber, the cutter that need are changed goes to the position of hope.
3. required instrument, machinery and the new cutter of tool changing is transported to main chamber.
4. under the cooperation of Chain block, cutter is dismantled by unscrewing its set bolt, and the cutter more renewing, the tightening torque that will reuse regulation after changing cutter tights a bolt.
Treatment measures when 6, breakage appears in mud film
1. in the process of opening the cabin, technician need observe the stability of the face soil body at any time, if in cleaning mud cake or cutterhead rotary course, finds that face mud film is damaged, and the construction that should stop immediately opening the cabin, withdraws from native cabin, closes Ren Zha.
2. again to squeezing into the swell soil that 24 hours viscosity of fermentation is 65s in cutterhead and native cabin, aerating simultaneously, more than upper soil pressure is risen to 0.5bar, maintains 30 minutes.
3. again according to the set flow process of opening the cabin, the operation of opening the cabin, checks breakage mud film repairing situation, if mud membrane stage is good, proceed relevant operation, not good if mud film is repaired, by above-mentioned mud film repairing measures, and improve upper soil pressure value, extend after the dwell time, then row checks mud film situation, until meeting, mud membrane stage stablizes face requirement, proceed the operation of opening the cabin, to guarantee personnel's job safety, face soil stabilization.
7, recover driving measure
1. before having opened the cabin, should fulfil ahead of schedule and recover the required every preparation of driving, comprise the work such as transport section of jurisdiction, simultaneous grouting slurry is made, operating personnel puts in place, reduce as far as possible and recover to tunnel time.
2. due in the process of opening the cabin, cutterhead slow circumvolve, between cutter and the face soil body, there is a fixed gap, after recovering, initial propulsion speed and cutterhead rotating speed are unsuitable too fast or excessively slow, make knife disc tool can slowly at the uniform velocity contact and cut the face soil body, simultaneously can be to a certain extent fast by this region.Fltting speed maintained about 40mm/ minute, and cutterhead rotating speed maintained about 1 ~ 1.5r/ minute.
While 3. recovering driving, become bag swell soil (about 40t) to insert in the native cabin of shield structure 30m3, until cannot fill, close hatch door and recover to advance, advance initially and be not unearthed, while aerating advances, until upper soil pressure is set up to 0.2 ~ 0.6bar, recovers normal propelling.
4. shield structure should pass through fast, to shield tail, arrives and opens the cabin behind region, suitably strengthens synchronous grouting amount and pressure.
5. open the cabin after the corresponding section of jurisdiction disengaging in region shield tail 5 ~ 8 rings, in hole, carry out in time second pulp feeding, suitably improve second pulp feeding pressure to 0.5MPa.
6. open the cabin after the corresponding section of jurisdiction disengaging in region chassis, carry out in time radial compensation slip casting, pressure is controlled at 2 ~ 3MPa.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection scope of the present invention.
Claims (8)
1. the shield in sandy cobble with no water method for tool changing of opening the cabin, is characterized in that, comprises the following steps:
Step 1, forms mud film: in cutterhead and native cabin, squeeze into swell soil, and aerating simultaneously, soil pressure in raising, and maintain 30 minutes, and form mud film, utilize shield structure forward probe hole, adopt swell soil to fill in advance the space between shield body and excavation profile;
Step 2, reinforces the shield body periphery soil body: in shield structure pre-grouting hole, set seamless steel pipe, and inject Modified Silicate Sodium Grout, controlled pressure, at 0.3Mpa, is reinforced the shield body periphery soil body, prevents that the cutterhead rear portion soil body from dropping;
Step 3, reinforce and the sealing shield structure face soil body: rotating cutter-head is not unearthed, until upper soil pressure is reduced to 0.01bar, then nature cooling is carried out in native cabin and cutterhead, after having lowered the temperature, in the opening part soil body, squeeze into seamless steel pipe, and inject Modified Silicate Sodium Grout, then to opening part, from top to bottom utilize flexible plug to carry out shutoff to cutterhead, and utilize rigid plug that opening part is firmly sealed, and seamless steel pipe and native cabin inwall are welded together, in the process of being unearthed, keep each opening all constantly in sealed condition;
Step 4, cleaning mud cake: utilize giant to remove mud cake, and check and record tool wear situation in removing mud cake process;
Step 5, cutter inspection and replacing: according to the tool wear situation checking in step 4, under the cooperation of Chain block, the cutter that weares and teares is changed;
Step 6, if occurred in above-mentioned steps there is damaged situation in face mud film, needs to carry out following steps: a, the construction that stops opening the cabin immediately, withdraws from native cabin, closes Ren Zha; B, again in cutterhead and native cabin, squeeze into the swell soil after fermentation, aerating simultaneously, more than upper soil pressure is risen to 0.5bar, maintains 30 minutes; With c, again according to the set flow process of opening the cabin, the operation of opening the cabin, check breakage mud film repairing situation, if mud membrane stage is good, proceed the operation of opening the cabin, if it is not good that mud film is repaired, improve upper soil pressure value, extend after the dwell time, then row checks mud film situation, until mud membrane stage meets, stablize after face requirement, proceed the operation of opening the cabin; And
Step 7, recovers driving: one-tenth bag swell soil is inserted in the native cabin of shield structure, until cannot fill, closed hatch door and recover to advance, advance initially and be not unearthed, while aerating advances, until upper soil pressure is set up to 0.2 ~ 0.6bar, recovers normal propelling.
2. a kind of shield in sandy cobble with no water according to claim 1 method of tool changing of opening the cabin, is characterized in that: the mixed liquor of described Modified Silicate Sodium Grout for evenly being mixed according to the weight ratio of 2:1 by water glass and the concentrated sulfuric acid.
3. a kind of shield in sandy cobble with no water according to claim 2 method of tool changing of opening the cabin, it is characterized in that: in described step 1, to the bentonitic amount of squeezing in cutterhead and native cabin, be 30m3, viscosity is 65s, the bentonitic amount adopting while filling the space between shield body and excavation profile is 3 m3, and viscosity is 65s.
4. a kind of shield in sandy cobble with no water according to claim 2 method of tool changing of opening the cabin, is characterized in that: in described step 2, the length of the seamless steel pipe setting in shield structure pre-grouting hole is 3.5 ~ 4m, and diameter is φ 42.
5. a kind of shield in sandy cobble with no water according to claim 2 method of tool changing of opening the cabin, is characterized in that: in described step 6, and the swell soil that the swell soil after fermentation is 65s for the viscosity of fermentation after 24 hours.
6. a kind of shield in sandy cobble with no water according to claim 2 method of tool changing of opening the cabin, it is characterized in that: in described step 3, the flexible plug using is woven bag and the thick sponge (1) of 20cm, and the rigid plug using comprises 2cm plank (2), 10cm*10cm flitch (3), φ 42 steel pipes (4) and jackscrew (5).
7. a kind of shield in sandy cobble with no water according to claim 1 method of tool changing of opening the cabin, is characterized in that, described step 4 is further comprising the steps:
A, utilize giant to remove center mud cake, if mud cake is harder, need to adopt pneumatic pick to abolish, scale removal process is observed face soil stabilization situation;
After b, center mud cake removal, continue Cleaning cutter pan first half mud cake, every cleaning one place shutoff one place, checks simultaneously and records the abrasion condition of cutter; With
C, soil body cabin in is successively cleared up in artificial pack until bottom is continued cleaning with said method and remained cutterhead place mud cake.
8. a kind of shield in sandy cobble with no water according to claim 1 method of tool changing of opening the cabin, is characterized in that, described step 5 is further comprising the steps:
A, according to tool wear situation, utilize the maintenance control panel rotating cutter-head in main chamber, the cutter that need are changed goes to the position of hope;
B, the required instrument of tool changing, plant equipment and new cutter are transported to main chamber; With
C, under the cooperation of Chain block, cutter is dismantled by unscrewing its set bolt, and the cutter more renewing, the tightening torque of reusing regulation after changing cutter tights a bolt and is tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114219.4A CN104005769B (en) | 2014-03-25 | 2014-03-25 | A kind of the open the cabin method of tool changing of shield in sandy cobble with no water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410114219.4A CN104005769B (en) | 2014-03-25 | 2014-03-25 | A kind of the open the cabin method of tool changing of shield in sandy cobble with no water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104005769A true CN104005769A (en) | 2014-08-27 |
| CN104005769B CN104005769B (en) | 2016-05-04 |
Family
ID=51366641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410114219.4A Active CN104005769B (en) | 2014-03-25 | 2014-03-25 | A kind of the open the cabin method of tool changing of shield in sandy cobble with no water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104005769B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422108A (en) * | 2015-11-16 | 2016-03-23 | 广东华隧建设股份有限公司 | Tool changing method based on slurry balanced shield machine with freezing function |
| CN105545315A (en) * | 2015-12-29 | 2016-05-04 | 上海市基础工程集团有限公司 | Normal pressure tool replacing method for reinforcing excavation face soil layer in shield tunnel construction |
| CN107201905A (en) * | 2017-06-06 | 2017-09-26 | 中铁十九局集团轨道交通工程有限公司 | Shield center girff renovation technique at ambient pressure in upper-soft lower-hard ground |
| CN108425682A (en) * | 2018-03-13 | 2018-08-21 | 中铁建大桥工程局集团第二工程有限公司 | A kind of shield tool changing ground-connecting-wall ruggedized construction and reinforced construction method |
| CN109915156A (en) * | 2019-03-05 | 2019-06-21 | 中交二航局成都城市建设工程有限公司 | A kind of sand-pebble layer earth pressure balanced shield, EPBS opens a position tool changing auxiliary construction method |
| CN110374606A (en) * | 2019-08-02 | 2019-10-25 | 中铁十四局集团大盾构工程有限公司 | Slurry shield seabed broken formation pre-grouting pressure maintaining construction method |
| CN111305854A (en) * | 2019-12-28 | 2020-06-19 | 北京市政建设集团有限责任公司 | Method for solving problem of sludge cake rich in HBW grease in shield tunneling of sandy cobble stratum |
| CN111502679A (en) * | 2020-05-19 | 2020-08-07 | 中铁十四局集团大盾构工程有限公司 | Simulation shield constructs blade disc mud cake and forms device |
| CN113803079A (en) * | 2021-09-22 | 2021-12-17 | 中铁十四局集团大盾构工程有限公司 | Method for maintaining tunnel face mud film during cabin opening operation of large-diameter slurry shield under pressure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241710Y (en) * | 2008-08-22 | 2009-05-20 | 中国建筑一局(集团)有限公司 | Sand pebble formation shield cutter head |
| CN102052079A (en) * | 2010-11-19 | 2011-05-11 | 中铁一局集团有限公司 | Method for exchanging tool of shield machine for tunnel construction |
| CN201851128U (en) * | 2010-11-19 | 2011-06-01 | 南车资阳机车有限公司 | Pressurizer for maintenance and tool change under pressure in construction of shield machine |
| CN102168565A (en) * | 2011-03-21 | 2011-08-31 | 广东水电二局股份有限公司 | Soil reinforcing method for realizing normal-pressure cabin opening of shield machine |
| CN102322271A (en) * | 2011-10-10 | 2012-01-18 | 沈阳重型机械集团有限责任公司 | Tool pan back-loading type device for changing tool of slurry-balanced shield machine under normal pressure |
-
2014
- 2014-03-25 CN CN201410114219.4A patent/CN104005769B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241710Y (en) * | 2008-08-22 | 2009-05-20 | 中国建筑一局(集团)有限公司 | Sand pebble formation shield cutter head |
| CN102052079A (en) * | 2010-11-19 | 2011-05-11 | 中铁一局集团有限公司 | Method for exchanging tool of shield machine for tunnel construction |
| CN201851128U (en) * | 2010-11-19 | 2011-06-01 | 南车资阳机车有限公司 | Pressurizer for maintenance and tool change under pressure in construction of shield machine |
| CN102168565A (en) * | 2011-03-21 | 2011-08-31 | 广东水电二局股份有限公司 | Soil reinforcing method for realizing normal-pressure cabin opening of shield machine |
| CN102322271A (en) * | 2011-10-10 | 2012-01-18 | 沈阳重型机械集团有限责任公司 | Tool pan back-loading type device for changing tool of slurry-balanced shield machine under normal pressure |
Non-Patent Citations (1)
| Title |
|---|
| 段浩等: "富水砂卵石地层盾构换刀方案", 《现代城市轨道交通》, no. 06, 10 December 2010 (2010-12-10) * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422108A (en) * | 2015-11-16 | 2016-03-23 | 广东华隧建设股份有限公司 | Tool changing method based on slurry balanced shield machine with freezing function |
| CN105545315A (en) * | 2015-12-29 | 2016-05-04 | 上海市基础工程集团有限公司 | Normal pressure tool replacing method for reinforcing excavation face soil layer in shield tunnel construction |
| CN107201905A (en) * | 2017-06-06 | 2017-09-26 | 中铁十九局集团轨道交通工程有限公司 | Shield center girff renovation technique at ambient pressure in upper-soft lower-hard ground |
| CN108425682A (en) * | 2018-03-13 | 2018-08-21 | 中铁建大桥工程局集团第二工程有限公司 | A kind of shield tool changing ground-connecting-wall ruggedized construction and reinforced construction method |
| CN109915156A (en) * | 2019-03-05 | 2019-06-21 | 中交二航局成都城市建设工程有限公司 | A kind of sand-pebble layer earth pressure balanced shield, EPBS opens a position tool changing auxiliary construction method |
| CN110374606A (en) * | 2019-08-02 | 2019-10-25 | 中铁十四局集团大盾构工程有限公司 | Slurry shield seabed broken formation pre-grouting pressure maintaining construction method |
| CN111305854A (en) * | 2019-12-28 | 2020-06-19 | 北京市政建设集团有限责任公司 | Method for solving problem of sludge cake rich in HBW grease in shield tunneling of sandy cobble stratum |
| CN111502679A (en) * | 2020-05-19 | 2020-08-07 | 中铁十四局集团大盾构工程有限公司 | Simulation shield constructs blade disc mud cake and forms device |
| CN113803079A (en) * | 2021-09-22 | 2021-12-17 | 中铁十四局集团大盾构工程有限公司 | Method for maintaining tunnel face mud film during cabin opening operation of large-diameter slurry shield under pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104005769B (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104005769B (en) | A kind of the open the cabin method of tool changing of shield in sandy cobble with no water | |
| CN102052079B (en) | Method for exchanging tool of shield machine for tunnel construction | |
| CN101666231B (en) | Shield machine warehouse entry method | |
| CN105736004A (en) | Balanced shield mud air-pressure cabin opening pressure maintaining and wall protecting construction method for shield tunneling | |
| CN107355226B (en) | Broken area hole section processing structure of TBM construction tunnel fault | |
| CN101608551A (en) | The job practices of a kind of shield machine closed origin and arrival | |
| CN102242640A (en) | Rapid outburst elimination method for cross cut coal uncovering in coal mine underground | |
| CN103256058B (en) | Numerical control full-automatic full-section rock shield machine | |
| CN109322671B (en) | Method for getting rid of worn and trapped shield cutter | |
| CN110159274B (en) | Sea area high water pressure shield method tunnel emergency tool changing structure and construction method | |
| CN103726855A (en) | Normal-pressure hobbing cutter changing device | |
| CN103696779A (en) | Tunnel face breast wall filter cake construction process for shield compressed air operations | |
| CN105257309B (en) | In a kind of layer of sand in balancing earth-pressure shielding machine storehouse slip casting tool changing construction method | |
| CN108425682A (en) | A kind of shield tool changing ground-connecting-wall ruggedized construction and reinforced construction method | |
| CN113494295A (en) | Underground butt joint construction method for long and large shield tunnel | |
| CN106007639B (en) | A kind of preparation method of high viscosity thixotropy mud | |
| CN104847373B (en) | Gravel clay stratum shield export ＆ import construction technology | |
| CN208918541U (en) | A kind of device for abolishing cutterhead mud cake | |
| CN109707394B (en) | Construction method for subway tunnel shield receiving end tunnel portal | |
| CN114352293A (en) | Mud film reinforcement construction method for shield cutter changing tunnel face and mud film component | |
| CN107152286A (en) | A kind of cutterhead frequency-conversion control cabinet electricity for shield machine drives moment of torsion and got rid of poverty system and method | |
| CN110259465A (en) | A kind of method that list shield double mode TBM pre-grouting reinforces fault belt | |
| CN111691890A (en) | Non-freezing shield mud for shield freezing method and using method thereof | |
| CN112502719A (en) | Method for TBM construction of lens body altered through high-pressure water-rich | |
| Ishii | Current issues regarding mechanised and automated tunnelling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |