CN108049878A - A kind of powder land floor shield cuts the construction method that stake is crossed the river - Google Patents
A kind of powder land floor shield cuts the construction method that stake is crossed the river Download PDFInfo
- Publication number
- CN108049878A CN108049878A CN201711115446.9A CN201711115446A CN108049878A CN 108049878 A CN108049878 A CN 108049878A CN 201711115446 A CN201711115446 A CN 201711115446A CN 108049878 A CN108049878 A CN 108049878A
- Authority
- CN
- China
- Prior art keywords
- shield
- river
- pressure
- construction
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 59
- 239000000843 powder Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000007689 inspection Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 65
- 239000004519 grease Substances 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 229910000278 bentonite Inorganic materials 0.000 claims description 14
- 239000000440 bentonite Substances 0.000 claims description 14
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000007569 slipcasting Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000006872 improvement Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000009412 basement excavation Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000012937 correction Methods 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 230000035772 mutation Effects 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 2
- 238000007711 solidification Methods 0.000 claims description 2
- 230000008023 solidification Effects 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 230000001141 propulsive effect Effects 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- NMFHJNAPXOMSRX-PUPDPRJKSA-N [(1r)-3-(3,4-dimethoxyphenyl)-1-[3-(2-morpholin-4-ylethoxy)phenyl]propyl] (2s)-1-[(2s)-2-(3,4,5-trimethoxyphenyl)butanoyl]piperidine-2-carboxylate Chemical compound C([C@@H](OC(=O)[C@@H]1CCCCN1C(=O)[C@@H](CC)C=1C=C(OC)C(OC)=C(OC)C=1)C=1C=C(OCCN2CCOCC2)C=CC=1)CC1=CC=C(OC)C(OC)=C1 NMFHJNAPXOMSRX-PUPDPRJKSA-N 0.000 description 21
- 230000005641 tunneling Effects 0.000 description 7
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 1
- 241000271460 Crotalus cerastes Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E21D9/04—Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- 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
- E21D9/0607—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield being provided with devices for lining the tunnel, e.g. shuttering
-
- 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to a kind of powder land floor shields to cut the construction method that stake crosses the river, including：Material prepares；Shield cuts pile foundation concrete measure：Cut pile driving construction control, monitoring and controlling, under wear river Construction control, the working measure of ambiguous barriers, pipeline protection measure；Shield driving parameter setting；Under wear the working measure in river；Control technology after shield crossing pile foundation；Monitoring frequency controls；Control is maked an inspection tour in hole.The beneficial effects of the invention are as follows：Method and step is simple, design is reasonable and construction is simple is convenient, and input cost is relatively low, and Practical Project operation implementation is strong；It can be improved down by the method for the invention and wear drivage efficiency, control attitude of shield machine, so as to reduce the possibility that accident occurs for tunnel, favourable basis is laid for follow-up successfully pass through；Practical value is high and using effect is good, compared to bored tunnel construction method is worn under existing, shortens the construction period, larger to reduce construction cost.
Description
Technical field
The invention belongs to shield crossings to cut off existing pile foundation technical field, and stake is cut more particularly, to a kind of powder land floor shield
The construction method to cross the river.
Background technology
In recent years, as city underground and the Large scale construction of related municipal works, the application of shield tunnel at home are got over
Come more.In the shield crossing stage, can run into existing building pile foundation often needs the construction methods such as progress pile pulling to cut off pile foundation,
So that shield is normally passed through, but this kind of construction method is long in time limit, and construction cost is high, and more demanding to construction environment, often not
Expected construction effect can be reached.
It is more using commonly risk existing for pile construction method is cut.If such as driving speed mistake during the stake of shield machine-cut
Soon, it is easy to shield machine is caused to block, while there is pile foundation intrusion in uplink tunnel cross-section one side, opposite side is stratum undisturbed soil.
Gesture stability difficulty in tunneling process is larger, if causing the snakelike advance of shield machine, also increases the wind that shield machine blocks
Danger；Shield machine may also be seriously damaged, influences subsequent construction.The pile top of driving, broken pile head such as shield machine together
Advance causes stratum to backbreak, and influences the control of surface subsidence and follow-up house, the safety of pipeline；In addition, shield spiral
Conveyer may be blocked by reinforcing bar, and shield machine can not operate normally.After shield machine cutting pile foundation, the reinforcing bar in pile foundation will enter spiral shell
Conveyer is revolved, reinforcing bar causes screw machine stuck, shadow it is possible that be stuck in the gap between helical blade and screw machine sleeve lining
Ring later stage driving；If the stake after passing through will be with dotted load action on tunnel duct piece, and load is directly delivered to tunnel lining
It builds, tunnel and bridge interaction, can give the safe handling of the two to bring hidden danger during subway circulation；When shield machine passes through river
During stream, since earthing is shallower, soil body stability is poor, river bed perforation is be easy to cause, river water pours in down a chimney.
The content of the invention
The purpose of the present invention is overcoming deficiency of the prior art, a kind of powder land floor shield is provided and cuts the construction that stake is crossed the river
Method, method and step is simple, and design is rationally and easy construction, construction effect are good, and effectively existing pile foundation can be cut off and successfully worn
More stratum, cycle are short and at low cost.
The purpose of the present invention is what is be achieved through the following technical solutions：
This powder land floor shield cuts the construction method that stake is crossed the river, and comprises the following steps：
1) material prepares：Carry out secondary grouting preparation after the wall of section of jurisdiction；Secondary grouting equipment is overhauled in advance；Preparation slip casting
Injected hole impact drill is opened in head and the Grouting Pipe being connected with casting head, slip casting machine, preparation section of jurisdiction；Preparation cement, water glass
Glass, grouting non-return valve and hand hole plug；
2) shield cuts pile foundation concrete measure：Cut pile driving construction control：Shield controls soil pressure, cutterhead during pile foundation is cut
Torque, grouting pressure and the every important parameter of amount of being unearthed；Monitoring and controlling：Arrangement measuring point has surveyed initial value, before shield crossing pile foundation or
After shield crossing pile foundation, tunnel axis, surface subsidence deformation and the monitoring of building deformation are carried out, according to monitoring data control
Construction overall process processed；Under wear river Construction control：Shield diameter of the height to earth up in river less than one times, then to bridge before promoting
It is reinforced, while strengthens the protection to closely bridge pier and prevent river water perfusion；The working measure of ambiguous barriers：According to area
Between physical prospecting report, the position of disturbance of analysis object, in progradation pay close attention to cutter head torque variation and thrust variation；Pipeline is protected
Shield measure：Investigation is carried out before construction to pipeline along section to implement；It cuts stake entire and crosses the river in work progress, inject bentonite
System be in can working condition, occur soil pressure mutation or digging footage amount be unearthed amount non-matching phenomenon when, note in Xiang Tucang
Enter bentonite, soil pressure when injection pressure is higher than driving；
3) shield driving parameter setting：Shield controls fltting speed and soil pressure force parameter during cross-over pile base；Shield
Structure slows down fltting speed when close to pile foundation, and lubricant is filled to cutterhead；The cutterhead of shield is put again close to fltting speed during pile foundation
Slowly；Cutter cuts concrete and reinforcing bar to push away speed mill slowly when the cutterhead of shield is cut；In the case of pushing away speed centainly, cutterhead is with medium turn
Speed cuts stake；Soil cabin pressure setting when raising is cut, during dynamic is unearthed, is stably held in a high position by soil pressure, first closes
Close casting gate, shield is bored to push away advance, after soil cabin pressure rise to than setting soil cabin pressure it is high after, manually be unearthed, regulating gate
Aperture opening ratio is no more than 10%, and soil cabin pressure drops to closed shutter after setting soil cabin pressure, and continuation is bored to be pushed away, and is so cycled；Shield is cut
Stake is by rear, and selection intensity is low, solidifies slow slurries type, and grouting amount refers to the feelings tunneled in identical soil layer shield early period
Condition is adjusted further according to bridge settlement monitoring data；Pushed position, intrusion and pressure value are remembered in detail during mud jacking
Record, is adjusted according to stratum deformation monitor information；Shield equilibrium is at the uniform velocity constructed, control shield attitude variation, per ring inspection pipe
The advanced argument of piece；It is promoted during propulsion using steady slope method, gentle slope method；Shield cuts and carries out gesture stability during stake, cutterhead when cutting
With pile body comprehensive engagement, between the two without the degree of bias；Improve in the cutterhead front pressure injection bentonite of shield the excavation face soil body and easy
The unearthed amount of property, controlled quentity controlled variable and pressure when adding bentonite, bentonitic pressure injection amount and shield is mutually matched；It is equipped with hand-held infrared ray
Thermometer judges native storehouse internal temperature situation；Gate before and after being closed when screw machine is gushed and happened；Inspect periodically shield tail oil
Fat pipeline and grease pump select the measured shield tail grease of matter；The work of shield tail grease injected system is understood by tunneling record daily
Make situation, prejudge failure in advance, and place under repair；
4) working measure in river is worn under：Control shield earth pressure balance；Control the fltting speed of shield；Control shield is entangled
Deviator：The posture of a section of jurisdiction is adjusted during propulsion per ring inspection, is promoted using steady slope method, gentle slope method, shield equilibrium is made at the uniform velocity to push away
Into, error correct amount to reduce influence of the shield-tunneling construction to ground；Control synchronous grouting amount and grind slurries quality；
5) control technology after shield crossing pile foundation：Behind shield shield tail abjection pile foundation region, which is carried out
Two~tetra- slip casting, specific mud jacking amount are adjusted according to the situation of ground settlement monitoring data.
As priority：Before step 1), Suporting structure inspection is carried out, checks synchronous grouting system, foam injection systems, inspection
Earth pressure balance system is looked into, checks shield tail grease injected system, hinged sealing system is checked, checks tunnel inner water drainage system, check
Communication system.
As priority：In the step 3), when the cutterhead of shield is cut cutter with 1~3mm/min it is slow push away speed mill cut it is mixed
Solidifying soil and reinforcing bar, the thrust and torque of shield are controlled as 13000~18000kN and 2500~3500kNm.
As priority：In the step 3), in the case of pushing away speed centainly, cutterhead is cut with the moderate rotation of 1.2~1.5rpm
Stake.
As priority：In the step 4), the fltting speed of shield is controlled in 2~3cm/min.
As priority：In the step 4), soil improvement agent is filled into native storehouse if necessary.
The beneficial effects of the invention are as follows：
(1) method and step is simple, design is reasonable and construction is simple is convenient, and input cost is relatively low, and Practical Project operation is implemented
Property is strong；
(2) it can be improved down by the method for the invention and wear drivage efficiency, attitude of shield machine be controlled, so as to reduce tunnel
The possibility of generation accident lays favourable basis for follow-up successfully pass through；
(3) practical value is high and using effect is good, compared to bored tunnel construction method is worn under existing, shortens construction work
It is phase, larger to reduce construction cost；
(4) it is widely applicable, all bored tunnel constructions can be effectively applicable to and shield reinforces the particularly ground such as compound stratum
The geology of matter situation complexity has ensured that shield is subsequently passed through that everything goes well with your work and carried out.
Description of the drawings
Fig. 1 is the method flow block diagram of the present invention.
Fig. 2 is shield tunnel and pile foundation position relationship drawing in side sectional elevation
Fig. 3 is that the wear-resisting weldering of cutterhead thickeies schematic diagram.
Fig. 4 is L-type baffle layout diagram at inspection hole.
Fig. 5 is that L-type baffle lays sectional view at inspection hole.
Reference sign：1-shield；2-pile foundation；The wear-resisting weldering thickening layer of 3-cutterhead；4-L-type block；5-screw machine
Soil outlet；6-inspection hole；7-access plate sliding area.
Specific embodiment
The present invention is described further with reference to embodiment.The explanation of following embodiments is only intended to help to understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
A kind of powder land floor shield as shown in Figure 1 cuts the construction method technological process that stake is crossed the river.Shield as shown in Figure 2
1 tunnel and 2 position relationship drawing in side sectional elevation of pile foundation.Cutter head of shield machine both sides are that big alloy is circular, and centre is an alloy, is ensured whole
A cut surface is all alloy.It cuts concrete dual-pilot cutter both sides to design for Rouno Cormer Pregrinding Wheel, cutterhead can reduce impact when rotating；Cut concrete dual-pilot cutter
The blade at top is narrow, and stress is small, easily cuts, when touching reinforcing bar, is more advantageous to cutting.As shown in Figure 3, in cutterhead face
Plate increases the thick wear-resisting welderings of 3mm and forms the wear-resisting weldering thickening layer 3 of cutterhead.If during 1 cross-over pile base 2 of shield, knife cutting stake
Base 2, breaking concrete block screw machine soil outlet 5, screw machine are caused to be unearthed not smooth, so as to continue to implement to promote.Work as spiral shell
When rotation is by card, before inspection hole 6 and cutting inspecting hole is opened, Emergency Preparedness work is carried out.As shown in Figure 4,5, checking at this time
Two-way parallel welding L-type block 4 around inspecting hole position is opened in hole 6 in advance, and the L-type block 4 can be used 3~5cm steel plates and cut
It forms, L-type block 4 is connected by bolt with inspection hole 6, is in case of emergency pushed away along 7 direction of access plate sliding area
Enter cover board, tighten bolt.The specific size of the L-type block 4 to consider cover board insertion when space and do not influence installation bolt
Depending on.
For reality in 1 cross-over pile base 2 of shield, if pile breaking phenomenon occurs in pile foundation 2, the working measure taken is as follows：
1) shield 1 injects additive, such as foam, bentonite, carries out soil improvement.And pass through the rotating of cutterhead by broken pile
In the native storehouse of incision or squeeze.
2) construct in case of broken pile influences shield 1, shield 1 stops promoting.Using the injected hole of shield machine host to shield machine
Front carries out pre-grouting so that the soil body in front of shield machine has certain intensity, ensures the soil strength of 1 excavation face of shield
Uniformity, then carry out shield 1 and tunnel.
3) chamber opening operation construction is carried out if necessary.
Detailed process is as follows：
1) shield machine equipment inspection：
1-1) synchronous grouting system, foam injection systems inspection
Grouting pipeline is cleared up, it is ensured that four road pipelines can be used；It checks comprehensively, maintenance grouting pump, it is ensured that available；
Grouting pressure sensor is carried out maintenance, it is correct to ensure that each grouting pressure is shown；Foaming pipeline is cleared up, particularly
Into the foaming agent pipe before cutterhead, it is ensured that available.
1-2) check earth pressure balance system
Pressure sensor (support pressure sensor and the screw conveyor pressure sensing that shield machine more renews before originating
Device), and pressure change is kept a close eye in early period tunneling process, whether analysis pressure sensor damages, if damage, in time into
Row is replaced.
1-3) check shield tail grease injected system
For ensure grouting at the tail of the shield machine not spillage or few spillage, prevent shield tail " gushing ", it is necessary to shield grease injected system into
Row maintenance ensures that grease pump is working properly, grease lines are unobstructed, adjustment grease injection pressure, it is ensured that grease injection rate.
1-4) check hinged sealing system
To prevent hinged seal failure from hinge point spillage being caused even " to gush ", it is necessary to which hinged sealing system is examined
It repaiies, in sand bed tunneling process, it is necessary to which according to machine management regulation, frequency check, maintenance are hinged sealing system on request, it is ensured that complete
It is good available.
1-5) check tunnel inner water drainage system
To prevent that tunneling generation " gushing " due to shield 1 influences construction, tunnel internal drainage drainage must be carried out complete
The dress watch in face, and prepare enough diaphragm pumps with spare.
1-6) check communication system
Upper and lower communication line and equipment must be overhauled, it is ensured that contacted up and down in work progress and during emergency logical
Freely.
2) other materials prepares：
Secondary grouting preparation after the wall of section of jurisdiction is carried out, accomplishes that secondary grouting measure can be started at any time.Two are overhauled in advance
Secondary (biliquid) grouting equipment, it is ensured that available.Prepare 6~8 casting heads, prepare 10~15m long Grouting Pipe simultaneously can with casting head,
Slip casting machine connection is intact, prepares section of jurisdiction and opens injected hole impact drill two.The daily deposit of cement is no less than 20t, and waterglass is daily
Deposit is no less than 2t, and grouting non-return valve and hand hole plug are several.
3) shield 1 cuts 2 concrete measure of pile foundation：
3-1) cut pile driving construction control
It must slow down fltting speed when cutting, shield machine parameter is rationally set.Shield 1 is during pile foundation 2 is cut, it is necessary to
Stringent control soil pressure, cutter head torque, grouting pressure, the every important parameter of amount etc. of being unearthed, reduce progradation pile foundation 2 to the greatest extent
Situations such as itself global displacement, occurs.
3-2) monitoring and controlling
Arrangement measuring point has surveyed initial value；Before 1 cross-over pile base 2 of shield or after passing through, carry out tunnel axis, surface subsidence deformation,
The monitorings such as building deformation effectively control construction overall process according to monitoring data.
River Construction control is worn under 3-3)
Shield 1 diameter of the earthing in river less than one times reinforces bridge before promoting, while reinforcement is to closely
The protection of bridge pier and prevent river water perfusion.
3-4) the working measure of ambiguous barriers
It is reported according to section physical prospecting, analyzes the barriers such as waste pile that may be present, substantially distinguish position.It is being advanced over
The variation of cutter head torque is paid close attention in journey, the variation of thrust, when torque increases gross thrust increase, tetra- subregions of ABCD have thrust play
Increase, sidewinder drastic change explanation and encounter stake.
3-5) pipeline protection measure
According to geologic information and design document that owner provides, investigation should be carried out before construction to pipeline along section and is implemented.
It 3-6) cuts stake entire and crosses the river in work progress, bentonite injected system is in can working condition immediately.Occurring
When soil pressure mutation, digging footage amount occur with amount mismatch (backbreaking) phenomenon of being unearthed, bentonite is injected into native storehouse immediately.Injection
Soil pressure when pressure is higher than driving, to ensure to backbreak, region is sufficient filling with by bentonite, reduces sedimentation.
4) shield driving parameter setting：
Shield 1 is during cross-over pile base 2, it is necessary to which the stringent control parameters such as fltting speed and soil pressure reduce to the greatest extent
The occurrence of itself global displacement of pile foundation 2.For shield 1 at the 6m close to pile foundation 2, when propulsion, must slow down fltting speed, push away
Into speed control in 1cm/min, the front soil body forms mud cake in order to prevent, fills lubricant to cutterhead in right amount, and it is suitable to improve the soil body
Profit is unearthed；Close to pile foundation 2, fltting speed further slows down cutter head of shield machine.1 digging large diameter pile foundation 2 of shield with " push away slowly speed,
The lazy slurry of middle rotating speed, soil conservation pressure, note, control posture " is core control technology.
Speed 4-1) is pushed away slowly
It is basic that 1 cutterhead of shield, which cuts stake with " grinding ", and cutter grinds and cuts concrete and reinforcing bar in which should push away fast, small cutting-in slowly.It examines
Consider that this engineering is relatively previous similar to cut engineering difficulty bigger, a risk higher, therefore slower driving speed should be taken, control
1~3mm/min；If it is excessive to cut 1 thrust torques of shield during stake, 1 inherently safe of shield will be not only influenced, it also can be to bridge pier
Larger active force is generated, and then influences bridge structure safe, therefore reference case experience, by thrust and moment of torsion control scope point
It does not draft as 13000~18000kN and 2500~3500kNm.
Rotating speed in 4-2)
In the case where pushing away speed centainly, cutterhead rotating speed is larger, although single cutting depth of the cutter to pile foundation 2 can be reduced,
Thrust torques are advantageously reduced, but then, the cutting linear velocity of cutterhead outer edge cutter is then inevitable big when rotating speed is big, can make
Be subject to larger impact load during tool contact pile foundation 2, so as to be easy to cause alloy burst apart very monoblock collapse it is de-.Therefore, to take into account
Control reasoning torque and protect cutter dual needs, cutterhead rotating speed do not answer it is excessive also should not be too small, be advisable with moderate rotation, turn
Speed control is in 1.2~1.5rpm or so.
4-3) soil conservation pressure
Soil conservation pressure is the key that control bridge settlement.Different from usual driving, disturbance is mainly in knife caused by cutting pile driving construction
Disk position, and the bearing capacity of bridge pier and pier derives from the support of its periphery soil body, therefore shield 1 is cut when pile foundation 2 is constructed and is answered
The setting of soil cabin pressure should when reducing the disturbance to surrounding soil as far as possible, especially prevent soil body Excessive Settlement and deformation, therefore cutting
Suitably improve.Simultaneously dynamic be unearthed during, soil pressure should be stably held in a high position, specifically can by " bored to push away " come
It realizes：First completely close casting gate, shield machine is " bored to push away " to advance, after soil pressure be increased to it is higher than setting soil pressure after, be unearthed manually,
Regulating gate aperture opening ratio is no more than 10%, and soil pressure drops to closed shutter immediately after setting soil pressure, continues " bored to push away ", so cycles.
4-4) note lazy slurry
Shield 1 cuts stake by rear, and cut-off top stub will act in the slurries of grouting behind shaft or drift lining, to prevent that top is residual
Stake continues to generate load to pipe-plate lining after sinking, the slurries type that selection intensity is not high, solidification is slower, on grouting amount
Situation about being tunneled in identical soil layer shield early period is can refer to, is adjusted in time further according to bridge settlement monitoring data.Mud jacking amount and
Depending on pressure value and stratum deformation monitoring data of the mud jacking point when mud jacking.Mud jacking must assign special messenger to be responsible for, to pushed position, pressure
Enter amount, pressure value makes detailed records, and adjusted in time according to stratum deformation monitor information, it is ensured that the construction matter of mud jacking process
Amount.
4-5) control posture
During 1 knife cutting of shield or grinding bridge pier, pile foundation 2 reacts on cutterhead, the easy unbalance stress in cutterhead front,
1 gesture stability difficulty of shield is larger.Since shield 1 needs continuous cutting to pass through more bridge piers, if 1 gesture stability of shield is bad, very
The stub having been turned off may be caused to act directly on shield casing, in addition also can further increase wind of the end to section of jurisdiction safety
Danger, therefore should strengthen the control of 1 posture of shield particularly perpendicular attitude, and when correction should also avoid anxious entangling, entangling suddenly.Ensuring shield
In the case of 1 positive settlement Control is good, make shield 1 is balanced at the uniform velocity to construct, 1 attitudes vibration of shield can not be excessive, per ring inspection
The advanced argument of section of jurisdiction.It does not entangle suddenly, entangle suddenly during propulsion, it is pay attention to observation section of jurisdiction and the gap of shield shell, the change of opposed area oil pressure more
Change amount is gradually changed with unearthed case number and jack stroke, is promoted using steady slope method, gentle slope method, to reduce the shadow of the construction of shield 1
It rings；Posture strictly controls during shield machine-cut stake, and cutterhead and pile body comprehensive engagement, not there is the degree of bias between the two when cutting.
4-6) cutterhead front soil improvement
Bentonitic use.The propulsion of shield 1 need to cut concrete, to ensure that the normal of shield 1 is unearthed, it is necessary to which the moment is in shield
The cutterhead front pressure injection bentonite of structure 1 improves the workability of the excavation face soil body, ensures that shield 1 is passed through so as to reduce cutter head torque
When have balanced fltting speed, while the soil body in conditioned soil storehouse, pile body fragment is contributed to smoothly to be discharged out of screw machine.Add swollen
The amount of must be strictly controlled and pressure during profit soil avoid the soil body from forming orientation under excessive note bentonite amount and higher pressure and pass through
Logical medium crack, causes penetrating passage, seriously affects the safe condition in tunnel.According to past construction experience and swelling
The relative theory of soil or foaming agent, bentonitic pressure injection amount must be mutually matched with the unearthed amount of shield machine.It is equipped with hand-held infrared
Line thermometer, in tunneling process, often tunnels 30 centimeters, and one-shot measurement is carried out to dregs temperature, judges temperature inside native storehouse with this
Degree situation.
4-7) screw conveyor gate is controlled and shield tail grease injects
Ensure to close front and rear gate in time when screw machine is gushed and happened, the dregs amount that will gush is preferably minimized.Periodically
Check shield tail grease lines, grease pump.Understand the working condition of shield tail grease injected system in time by tunneling record daily, to the greatest extent
Failure may be prejudged in advance, repaired in time.The measured shield tail grease of matter is selected simultaneously, and guarantee tail sealing performance be (each ring
Pressure injection amount is 35kg, in case of exceptional circumstances, can increase the pressure injection amount of shield tail grease by actual conditions, grease storehouse pressure for 15~
20bar)。
5) working measure in river is worn under：
5-1) strictly control 1 earth pressure balance of shield
The related construction parameter of stringent control balance pressure, prevents from backbreaking, owes to dig the fluctuation for reducing balance pressure to the greatest extent.
5-2) strictly control the fltting speed of shield 1
Speed should be controlled in 2~3cm/min during propulsion, and equilibrium construction reduces the disturbance to surrounding soil, avoids on the way
There is the long period to pause to stop over.
5-3) strictly control 1 correction amount of shield
The posture of a section of jurisdiction is adjusted during propulsion per ring inspection, is promoted using steady slope method, gentle slope method, makes shield 1 balanced even
Speed promotes, and stringent error correct amount is to reduce the influence of 1 Construction on Ground of shield.
5-4) strictly control synchronous grouting amount and grind slurries quality
Ensureing will be in place per ring slip casting total amount；During ensureing that shield 1 promotes each case soil, the uniform pressure injection of slurries；Slurry
The proportioning of liquid must meet quality standard.
Soil improvement agent 5-5) is filled into native storehouse if necessary, ensures the water-retaining property of the soil body in native storehouse, prevents river water from penetrating through.
6) control technology after 1 cross-over pile base 2 of shield：
Behind 1 shield tail of shield abjection pile foundation, 2 region, secondary ftercompction slurry must be carried out to the area segments tunnel, can carried out if necessary
Three times, four slip casting.Design adds injected hole on section of jurisdiction simultaneously.On the premise of original 6 injected holes, and add 10
A injected hole so can ensure that the effect of slip casting with multiple spot, the slip casting of small pressure.By secondary ftercompction starch tunnel and
The gap of reinforcing area is replenished in time, and further ensures that the regional land subsidence is controlled, secondary grouting slurries are selected
For dual slurry, the ratio of mud 1：1.2 coverage of shield machine cutting pile foundation is the distance of 35 rings, thus take in this 35 ring and
When secondary grouting construction.Grouting amount is fixed tentatively as every ring 1.5m3, point 5 pipe sheet assembling holes carry out pressure injection, are per pore pressure fluence
0.3m3, specific mud jacking amount is adjusted in time according to the situation of ground settlement monitoring data.
The present invention has the advantages such as stability is high, speed of application is fast, while can guarantee construction quality, ensures that successive projects are applied
Work application prospect is good.
Claims (6)
1. a kind of powder land floor shield cuts the construction method that stake is crossed the river, which is characterized in that comprises the following steps：
1) material prepares：Carry out secondary grouting preparation after the wall of section of jurisdiction；Secondary grouting equipment is overhauled in advance；Preparation casting head with
And injected hole impact drill is opened in the Grouting Pipe being connected with casting head, slip casting machine, preparation section of jurisdiction；Preparation cement, waterglass, note
Slurry non-return valve and hand hole plug；
2) shield (1) cuts pile foundation (2) concrete measure：Cut pile driving construction control：Shield (1) controls soil during pile foundation (2) is cut
Pressure, cutter head torque, grouting pressure and the every important parameter of amount of being unearthed；Monitoring and controlling：Arrangement measuring point has surveyed initial value, shield (1)
Before cross-over pile base (2) or after shield (1) cross-over pile base (2), the prison of tunnel axis, surface subsidence deformation and building deformation is carried out
Work is surveyed, construction overall process is controlled according to monitoring data；Under wear river Construction control：When the height to earth up in river is less than one times
Shield (1) diameter reinforces bridge before then promoting, while strengthens the protection to closely bridge pier and prevent river water perfusion；
The working measure of ambiguous barriers：It is reported according to section physical prospecting, the position of disturbance of analysis object, cutterhead is paid close attention in progradation and is turned round
The variation of square and the variation of thrust；Pipeline protection measure：Investigation is carried out before construction to pipeline along section to implement；Entirely cutting stake
Cross the river in work progress, make bentonite injected system be in can working condition, soil pressure mutation or digging footage amount is occurring with going out
During soil amount non-matching phenomenon, injection bentonite in Xiang Tucang, soil pressure when injection pressure is higher than driving；
3) shield (1) propulsive parameter is set：Shield (1) controls fltting speed and soil pressure ginseng during cross-over pile base (2)
Number；Shield (1) slows down fltting speed when close to pile foundation (2), and lubricant is filled to cutterhead；The cutterhead of shield (1) is close to pile foundation
(2) fltting speed slows down again when；Cutter cuts concrete and reinforcing bar to push away speed mill slowly when the cutterhead of shield (1) is cut；It pushes away fast certain
In the case of, cutterhead cuts stake with moderate rotation；Soil cabin pressure setting when raising is cut, it is during dynamic is unearthed, soil pressure is steady
Surely a high position is maintained at, first closes casting gate, shield (1) is bored to push away advance, treats soil cabin pressure rise to than setting soil cabin pressure
After power height, it is unearthed manually, regulating gate aperture opening ratio is no more than 10%, and soil cabin pressure drops to closed shutter after setting soil cabin pressure,
Continue it is bored push away, so cycle；Shield (1) cuts stake by rear, and the slurries type that selection intensity is low, solidification is slow, grouting amount refers to shield
The situation that structure early period tunnels in identical soil layer is adjusted further according to bridge settlement monitoring data；During mud jacking to pushed position,
Intrusion and pressure value make detailed records, and are adjusted according to stratum deformation monitor information；Shield (1) equilibrium is at the uniform velocity constructed,
Shield (1) attitudes vibration is controlled, the advanced argument of section of jurisdiction is checked per ring；It is promoted during propulsion using steady slope method, gentle slope method；Shield (1)
It cuts and carries out gesture stability during stake, cutterhead and a pile body comprehensive engagement when cutting, between the two without the degree of bias；Knife in shield (1)
Disk front pressure injection bentonite improves the workability of the excavation face soil body, controlled quentity controlled variable and pressure when adding bentonite, bentonitic pressure injection amount
It is mutually matched with the unearthed amount of shield (1)；It is equipped with hand-held infra-red thermometer and judges native storehouse internal temperature situation；It is sprayed in screw machine
Gush gate before and after being closed when happening；Shield tail grease lines and grease pump are inspected periodically, selects the measured shield tail grease of matter；It is logical
The working condition that daily driving record understands shield tail grease injected system is crossed, failure is prejudged in advance, and places under repair；
4) working measure in river is worn under：Control shield (1) earth pressure balance；Control the fltting speed of shield (1)；Control shield
(1) correction amount：The posture of a section of jurisdiction is adjusted during propulsion per ring inspection, is promoted using steady slope method, gentle slope method, makes shield (1) equal
Weighing apparatus at the uniform velocity promotes, and error correct amount is to reduce the influence of shield (1) Construction on Ground；Control synchronous grouting amount and grind slurries quality；
5) control technology after shield (1) cross-over pile base (2)：Behind shield (1) shield tail abjection pile foundation (2) region, to the area segments
Tunnel carries out two~tetra- slip casting, and specific mud jacking amount is adjusted according to the situation of ground settlement monitoring data.
2. powder land floor shield according to claim 1 cuts the construction method that stake is crossed the river, it is characterised in that：In step 1)
Before, shield (1) equipment inspection is carried out, checks synchronous grouting system, foam injection systems, checks earth pressure balance system, checks shield
Tail grease injected system checks hinged sealing system, checks tunnel inner water drainage system, checks communication system.
3. powder land floor shield according to claim 1 cuts the construction method that stake is crossed the river, it is characterised in that：The step 3)
In, cutter cuts concrete and reinforcing bar, the thrust of shield (1) with the slow speed mill that pushes away of 1~3mm/min when the cutterhead of shield (1) is cut
13000~18000kN and 2500~3500kNm are controlled as with torque.
4. powder land floor shield according to claim 1 cuts the construction method that stake is crossed the river, it is characterised in that：The step 3)
In, in the case of pushing away speed centainly, cutterhead cuts stake with the moderate rotation of 1.2~1.5rpm.
5. powder land floor shield according to claim 1 cuts the construction method that stake is crossed the river, it is characterised in that：The step 4)
In, the fltting speed of shield (1) is controlled in 2~3cm/min.
6. powder land floor shield according to claim 1 cuts the construction method that stake is crossed the river, it is characterised in that：The step 4)
In, soil improvement agent is filled into native storehouse if necessary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115446.9A CN108049878B (en) | 2017-11-13 | 2017-11-13 | A kind of powder land floor shield cuts the construction method that stake is crossed the river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711115446.9A CN108049878B (en) | 2017-11-13 | 2017-11-13 | A kind of powder land floor shield cuts the construction method that stake is crossed the river |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108049878A true CN108049878A (en) | 2018-05-18 |
| CN108049878B CN108049878B (en) | 2019-06-25 |
Family
ID=62120140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711115446.9A Active CN108049878B (en) | 2017-11-13 | 2017-11-13 | A kind of powder land floor shield cuts the construction method that stake is crossed the river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108049878B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060395A (en) * | 2018-08-27 | 2018-12-21 | 郑州大学 | The pilot system platform of excision composite foundation pile body is worn under a kind of shield |
| CN109869158A (en) * | 2019-03-20 | 2019-06-11 | 南通勘察设计有限公司 | Subway shield tunnel construction technique in a kind of sand |
| CN110374617A (en) * | 2019-08-08 | 2019-10-25 | 中国建筑第四工程局有限公司 | A kind of Shield Method Tunnel for Metro Tunnel Passing construction prestressed cable method |
| CN110685704A (en) * | 2019-10-15 | 2020-01-14 | 中铁十二局集团有限公司 | Construction method for water bag pebble mixed soil layer earth pressure shield to pass through river channel |
| CN110985021A (en) * | 2019-12-12 | 2020-04-10 | 中铁十二局集团第二工程有限公司 | Long-distance river-crossing construction method for earth pressure balance shield |
| CN112031789A (en) * | 2020-09-10 | 2020-12-04 | 宁波朗达工程科技有限公司 | Shield method for preventing water-rich layered soft soil duct piece from squeezing crack and sinking to ground |
| CN112160758A (en) * | 2020-10-19 | 2021-01-01 | 中建八局轨道交通建设有限公司 | Construction method for slurry shield to penetrate through river dike |
| CN112365785A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Servo type composite earth pressure balance micro shield device and working method |
| CN112523767A (en) * | 2020-11-24 | 2021-03-19 | 中铁隧道局集团有限公司 | Construction method for shield pile grinding of expansion soil layer |
| CN112647963A (en) * | 2020-12-21 | 2021-04-13 | 上海隧道工程有限公司 | Construction method for shield to obliquely penetrate existing ground wall |
| CN112682052A (en) * | 2019-10-18 | 2021-04-20 | 中铁第六勘察设计院集团有限公司 | Construction method for underpinning pile foundation in shield tunnel |
| CN112922616A (en) * | 2019-12-05 | 2021-06-08 | 宏润建设集团股份有限公司 | Method for controlling shield crossing construction |
| CN114370285A (en) * | 2021-12-27 | 2022-04-19 | 上海市基础工程集团有限公司 | Method for judging cutting pile foundation of shield machine in soft soil stratum |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774566A1 (en) * | 1995-11-17 | 1997-05-21 | FLOWTEX TECHNOLOGIE-IMPORT VON KABELVERLEGEMASCHINEN GmbH | Method for securing in advance the roof when driving tunnels |
| JP2004060266A (en) * | 2002-07-29 | 2004-02-26 | Alpha Civil Engineering:Kk | Non-open-cut construction method for underground structure |
| CN101131090A (en) * | 2007-10-09 | 2008-02-27 | 中铁二局股份有限公司 | Construction method for shallow soil-covered river bed under shield tunnel |
| CN102720508A (en) * | 2012-04-28 | 2012-10-10 | 中铁二局股份有限公司 | Shield construction method for continuously under-passing dense buildings in silty-soil and silty-sand formation |
| CN103527209A (en) * | 2013-10-22 | 2014-01-22 | 北京交通大学 | Micro disturbance tunneling method used for shield machine to tunnel under building on rich water weak formation |
| CN103603670A (en) * | 2013-11-21 | 2014-02-26 | 上海市基础工程集团有限公司 | Construction method of ultra-deep-earthed shield crossing complex formations |
| CN104989412A (en) * | 2015-06-11 | 2015-10-21 | 北京市市政四建设工程有限责任公司 | Earth pressure balance type shield long-distance lake-crossing construction technology |
| CN105804761A (en) * | 2016-03-14 | 2016-07-27 | 上海隧道工程有限公司 | Construction method suitable for making shield penetrate through building in close range on liquefied sandy soil stratum |
-
2017
- 2017-11-13 CN CN201711115446.9A patent/CN108049878B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0774566A1 (en) * | 1995-11-17 | 1997-05-21 | FLOWTEX TECHNOLOGIE-IMPORT VON KABELVERLEGEMASCHINEN GmbH | Method for securing in advance the roof when driving tunnels |
| JP2004060266A (en) * | 2002-07-29 | 2004-02-26 | Alpha Civil Engineering:Kk | Non-open-cut construction method for underground structure |
| CN101131090A (en) * | 2007-10-09 | 2008-02-27 | 中铁二局股份有限公司 | Construction method for shallow soil-covered river bed under shield tunnel |
| CN102720508A (en) * | 2012-04-28 | 2012-10-10 | 中铁二局股份有限公司 | Shield construction method for continuously under-passing dense buildings in silty-soil and silty-sand formation |
| CN103527209A (en) * | 2013-10-22 | 2014-01-22 | 北京交通大学 | Micro disturbance tunneling method used for shield machine to tunnel under building on rich water weak formation |
| CN103603670A (en) * | 2013-11-21 | 2014-02-26 | 上海市基础工程集团有限公司 | Construction method of ultra-deep-earthed shield crossing complex formations |
| CN104989412A (en) * | 2015-06-11 | 2015-10-21 | 北京市市政四建设工程有限责任公司 | Earth pressure balance type shield long-distance lake-crossing construction technology |
| CN105804761A (en) * | 2016-03-14 | 2016-07-27 | 上海隧道工程有限公司 | Construction method suitable for making shield penetrate through building in close range on liquefied sandy soil stratum |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060395A (en) * | 2018-08-27 | 2018-12-21 | 郑州大学 | The pilot system platform of excision composite foundation pile body is worn under a kind of shield |
| CN109060395B (en) * | 2018-08-27 | 2023-12-05 | 郑州大学 | Test system platform for shield underpass cutting composite foundation pile body |
| CN109869158A (en) * | 2019-03-20 | 2019-06-11 | 南通勘察设计有限公司 | Subway shield tunnel construction technique in a kind of sand |
| CN109869158B (en) * | 2019-03-20 | 2020-10-30 | 南通勘察设计有限公司 | Construction process for subway shield in sandy soil |
| CN110374617A (en) * | 2019-08-08 | 2019-10-25 | 中国建筑第四工程局有限公司 | A kind of Shield Method Tunnel for Metro Tunnel Passing construction prestressed cable method |
| CN110685704A (en) * | 2019-10-15 | 2020-01-14 | 中铁十二局集团有限公司 | Construction method for water bag pebble mixed soil layer earth pressure shield to pass through river channel |
| CN110685704B (en) * | 2019-10-15 | 2021-08-10 | 中铁十二局集团有限公司 | Construction method for water bag pebble mixed soil layer earth pressure shield to pass through river channel |
| CN112682052A (en) * | 2019-10-18 | 2021-04-20 | 中铁第六勘察设计院集团有限公司 | Construction method for underpinning pile foundation in shield tunnel |
| CN112922616A (en) * | 2019-12-05 | 2021-06-08 | 宏润建设集团股份有限公司 | Method for controlling shield crossing construction |
| CN110985021A (en) * | 2019-12-12 | 2020-04-10 | 中铁十二局集团第二工程有限公司 | Long-distance river-crossing construction method for earth pressure balance shield |
| CN110985021B (en) * | 2019-12-12 | 2022-02-15 | 中铁十二局集团第二工程有限公司 | Long-distance river-crossing construction method for earth pressure balance shield |
| CN112031789A (en) * | 2020-09-10 | 2020-12-04 | 宁波朗达工程科技有限公司 | Shield method for preventing water-rich layered soft soil duct piece from squeezing crack and sinking to ground |
| CN112160758A (en) * | 2020-10-19 | 2021-01-01 | 中建八局轨道交通建设有限公司 | Construction method for slurry shield to penetrate through river dike |
| CN112365785A (en) * | 2020-10-20 | 2021-02-12 | 山东大学 | Servo type composite earth pressure balance micro shield device and working method |
| CN112523767A (en) * | 2020-11-24 | 2021-03-19 | 中铁隧道局集团有限公司 | Construction method for shield pile grinding of expansion soil layer |
| CN112647963A (en) * | 2020-12-21 | 2021-04-13 | 上海隧道工程有限公司 | Construction method for shield to obliquely penetrate existing ground wall |
| CN114370285A (en) * | 2021-12-27 | 2022-04-19 | 上海市基础工程集团有限公司 | Method for judging cutting pile foundation of shield machine in soft soil stratum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108049878B (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108049878B (en) | A kind of powder land floor shield cuts the construction method that stake is crossed the river | |
| Lin et al. | Key techniques and important issues for slurry shield under-passing embankments: A case study of Hangzhou Qiantang River Tunnel | |
| Zhao et al. | Tunnelling through a frequently changing and mixed ground: a case history in Singapore | |
| Barla et al. | TBM tunnelling in difficult ground conditions | |
| CN105240019A (en) | Pipe jacking construction method | |
| CN104343455A (en) | Long-distance curved jacking pipe and pipe roof construction technique | |
| Zhang et al. | Challenges of earth pressure balance tunnelling in weathered granite with boulders | |
| CN109386293A (en) | The sealed reception construction method of large section rectangular top pipe | |
| Sze et al. | Tunnelling undercrossing existing live MRT tunnels | |
| Luo et al. | Evaluating construction risks of modified shield machine applicable to soft soils based on fuzzy comprehensive evaluation method | |
| CN104389613B (en) | Slurry balance shield passes through the construction method of jeopardously underground pipelines | |
| CN104653186A (en) | Method of earth pressure balance shield crossing reinforced concrete pile foundation building | |
| CN205618170U (en) | Protective structure of no template punishment rock mass cavity in tunnel engineering | |
| Wei et al. | Deformation characteristics of existing twin tunnels induced by double shield undercrossing with prereinforcement: A case study in Hangzhou | |
| Zhang et al. | Construction applicability of mechanical methods for connecting aisle in the bohai mudstone stratum with high water pressure | |
| Jonker et al. | Experiences with the application of innovative shield tunnelling techniques during the construction of the Betuweroute | |
| Chen et al. | Cutting, Wear and replacement of cutting tools during shield tunneling | |
| Carlsson et al. | Construction experiences from underground works at Forsmark. Compilation report | |
| Zhao et al. | Shield Treatment Technology for Large-Size Pebble Stratum | |
| Shirlaw et al. | The risk of very large settlements due to EPB tunnelling | |
| Chen et al. | Construction Technology of Shield Tunnel Crossing the Middle Channel Section of Yangtze River | |
| Sun et al. | Shield Treatment Technology in Extremely Soft Stratum | |
| Wang et al. | Shield Tunneling Treatment Technology in Boulder Stratum | |
| Chen et al. | Risks of TBM construction and corresponding measures | |
| CN114718585A (en) | Shield construction method suitable for passing tidal lake downwards |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180518 Assignee: HONGRUN CONSTRUCTION GROUP Co.,Ltd. Assignor: Hong Fu Jin Precision Industry (ShenZhen) Co.,Ltd. Contract record no.: X2020330000013 Denomination of invention: Construction method of shield pile-cutting river-crossing of silt stratum Granted publication date: 20190625 License type: Common License Record date: 20200408 Application publication date: 20180518 Assignee: CHINA RAILWAY TENTH GROUP Co.,Ltd. Assignor: Hong Fu Jin Precision Industry (ShenZhen) Co.,Ltd. Contract record no.: X2020330000012 Denomination of invention: Construction method of shield pile-cutting river-crossing of silt stratum Granted publication date: 20190625 License type: Common License Record date: 20200408 |