CN103184874A - Plugging method for preventing collapse in shield tunneling machine jacking process - Google Patents
Plugging method for preventing collapse in shield tunneling machine jacking process Download PDFInfo
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- CN103184874A CN103184874A CN 201110455159 CN201110455159A CN103184874A CN 103184874 A CN103184874 A CN 103184874A CN 201110455159 CN201110455159 CN 201110455159 CN 201110455159 A CN201110455159 A CN 201110455159A CN 103184874 A CN103184874 A CN 103184874A
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- cutter head
- jacking
- blocking
- shield structure
- caves
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Abstract
The invention discloses a plugging method for preventing collapse in the shield tunneling machine jacking process. The method comprises the following steps of installing slide rails on two corresponding side walls of a jacking cutter head of a jacking machine and a cutter head bottom plate; and installing a rolling shutter plugging door between the two slide rails. During normal excavation, the rolling shutter plugging door is positioned on the cutter head bottom plate. When water surges or soil collapses, the surged water or the soil surges from the front part of the jacking machine, then the power of a rolling shutter is started, the rolling shutter plugging door is pushed to a cutter head top plate from the cutter head bottom plate by the pushing of the power of the rolling shutter, the middle part of the jacking cutter head is plugged, and then the water and the collapsed soil are prevented from surging from the front part of the jacking machine, so the safety of tunnel excavation is ensured. The method is used for preventing the collapse in the tunnel jacking process of a shield tunneling machine, and has the advantages that operation is simple, and safety is high.
Description
Technical field
The present invention relates to a kind of shield structure jacking and prevent the method for caving in excavating, particularly relate to a kind of method for blocking of caving in of preventing for shield structure jack-in process.
Technical background
Now crowded along with urban traffic greatly developed underground traffic, as development subway or underground car passage.Subway or underground passage adopt the shield machine excavation usually, but because underground geological conditions complexity, in order to adapt to different conditions, multiple shield machine is arranged, relevant tunnelling technology is disclosed in application number 2008100390952 denominations of invention " a kind of tunnel method for digging and device that can prevent from caving in " of applying on June 18th, 2008 to Patent Office of the People's Republic of China as me, if but this tunnel jacking technology solves when the landslide of water burst or sand takes place when jacking effectively.Therefore, be badly in need of simple, the strong operability of a kind of technology now, can guarantee to prevent in the shield structure jack-in process method for blocking that caves in.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming, provide that a kind of equipment making expense is low, technology is simple, strong operability, the safe shield structure jack-in process that is used for prevent the method for blocking that caves in.
For this reason, the invention provides and a kind ofly prevent the method for blocking that caves in for shield structure jack-in process, at two corresponding side walls of jacking cutter head and the cutter head base plate of jacking machine slide rail is installed; Volume lock closure gate is installed between two slide rails.When normally excavating at ordinary times, volume lock closure gate is positioned on the cutter head base plate.When water burst or earth landslide took place in the front of jacking cutter head, water burst or earth can pour in from the place ahead of jacking machine.At this moment, start volume lock power, volume lock closure gate is raised to the cutter head top board from the cutter head base plate under the promotion of volume lock power, and with the middle part shutoff of jacking cutter head, anti-sealing and landslide earth pour in from jacking machine front portion, guarantee the safety of tunnelling.
In the method for blocking that another kind provided by the invention prevents from caving in for shield structure jack-in process, described volume lock closure gate is interconnected by the polylith metal sheet and forms, this structure can make volume lock closure gate have crooked function, can go to the cutter head top board from the cutter head base plate.Between the described polylith metal sheet rubber weather strip is installed, rubber weather strip can prevent that sealing therefrom spills.Equally, between described volume lock closure gate and the slide rail rubber weather strip is installed, the effect by weather strip can increase the sealing function to water.
In another kind provided by the invention was used for method for blocking that shield structure jack-in process prevents from caving in, first of described volume lock closure gate top was that the forward position of shutoff top board is serrated knife.Sawtooth power has been installed on the described serrated knife, and described sawtooth power is the vibrations power, can make sawtooth produce vibrations when rising.Can improve the ability of serrated knife cutting earth by the effect of vibrations.Described sawtooth power is reciprocating power, sawtooth is produced when rising move back and forth, and reciprocating motion can make saw tooth cutting tool that the function of fly-cutting earth is arranged.Method of the present invention prevents from can also being used for ordinary production the landslide except can be used for, and improves safety.When the jacking machine is pushed ahead, if because soil is when too soft, the soil amount of advancing of the earth in the jacking machine can be surpassed slide rail, start volume lock power, start the sawtooth power of serrated knife, serrated knife is cut earth, and the earth that will enter the jacking machine from slide rail is divided into two parts, a preceding part can keep the pressure of earth, prevents that earth from continuing to enter the jacking machine; The a part of earth in back can be transported in the condition of safety.When after after a part of earth transported, open volume lock closure gate, the jacking machine is continued to push ahead, so earth can be tunneled and transport to repeatable operation like this under the situation of safety.
Provided by the inventionly prevent for shield structure jack-in process that the method for blocking that caves in from comparing with existing method and have the following advantages:
1. safe: when the landslide of earth and water taking place or pour in, by the plugging action of volume lock closure gate, earth and water blocking can be lived, prevent from pouring in jacking machine rear portion and the tunnel, safe.
2. simple to operate: as just earth and water blocking can be lived as long as start volume lock power.
Description of drawings
Accompanying drawing 1 is a kind of structural representation that prevents a jacking cutter head of the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 2 is a kind of sectional drawings that prevent the principle schematic of the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 3 is a kind of schematic top plan view that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 4 is a kind of phantom drawings that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 5 is a kind of shutoff schematic diagrames that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 6 is the schematic top plan view after a kind of shutoff that prevents the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 7 is the phantom drawings after a kind of shutoff that prevents the method for blocking that caves in for shield structure jack-in process provided by the invention.
Accompanying drawing 8 is a kind of embodiment schematic diagrames that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention.
The specific embodiment
With reference to accompanying drawing 1, accompanying drawing 1 is a kind of structural representation that prevents a jacking cutter head of the method for blocking that caves in for shield structure jack-in process provided by the invention: jacking cutter head 1 what install previously is cutter 2.When the jacking cutter head was pushed ahead in the tunnel, cutter 2 was inserted in the soil.
With reference to accompanying drawing 2, accompanying drawing 2 is a kind of sectional drawings that prevent the principle schematic of the method for blocking that caves in for shield structure jack-in process provided by the invention: the cutter 2 on the front portion of jacking cutter head 1 is mounted in, being cutter head top board 5 above, is cutter head base plate 4 below.At cutter head base plate 4 slide rail 3 has been installed, slide rail 3 rises to cutter head top board 5 from cutter head base plate 4 always.Slide rail 3 is fixed on the sidewall 8 of jacking cutter head 1.3 li of slide rails volume lock closure gate 6 has been installed, volume lock closure gate 6 can slide up and down along slide rail 3 under the effect of the motive force of volume lock power 7.
With reference to accompanying drawing 3, accompanying drawing 3 is a kind of schematic top plan view that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention: jacking cutter head 1 is by cutter 2 jacking forward, two sidewalls at jacking cutter head 1 have been installed slide rail respectively, wherein left slide rail bottom 13 is installed on the cutter head base plate (this figure does not draw) of jacking cutter head 1, and left slide rail top 16 is installed on the cutter head left side wall 11; Right slide rail bottom 14 is installed on the cutter head base plate (this figure does not draw) of jacking cutter head 1, and right slide rail top 15 is installed on the cutter head right side wall 12.Between left slide rail bottom 13 and right slide rail bottom 14, volume lock closure gate 6 has been installed.Volume lock closure gate 6 can move back and forth to the top from the slide rail bottom under the effect of volume lock power 7.Forward position at volume lock closure gate 6 is shutoff top board 17.
With reference to accompanying drawing 4, accompanying drawing 4 is a kind of phantom drawings that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention: left slide rail top 16 is installed in cutter head left side wall 11, and right slide rail top 15 is installed on the cutter head right side wall 12.Volume lock closure gate 6 has been installed between two slide rails, and volume lock closure gate 6 can pump under the effect of volume lock power 7.
With reference to accompanying drawing 5, accompanying drawing 5 is a kind of shutoff schematic diagrames that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention: volume lock closure gate 6 is under the promotion of volume lock power 7, shift onto to rise to cutter head top board 5 from the cutter head base plate 4 of jacking cutter head 1 and link to each other, thereby the middle part of jacking cutter head 1 is blocked.
With reference to accompanying drawing 6, accompanying drawing 6 is the schematic top plan view after a kind of shutoff that prevents the method for blocking that caves in for shield structure jack-in process provided by the invention: two sidewalls at jacking cutter head 1 have been installed slide rail respectively, wherein left slide rail bottom 13 is installed on the cutter head base plate (this figure does not draw) of jacking cutter head 1, and left slide rail top 16 is installed on the cutter head left side wall 11; Right slide rail bottom 14 is installed on the cutter head base plate (this figure does not draw) of jacking cutter head 1, and right slide rail top 15 is installed on the cutter head right side wall 12.Between left slide rail bottom 13 and right slide rail bottom 14, volume lock closure gate 6 has been installed.Volume lock closure gate 6 is pulled to top from the slide rail bottom under the effect of volume lock power 7, the shutoff top board 17 of volume lock closure gate 6 is pulled on the cutter head top board (this figure does not draw) of jacking cutter head 1.
With reference to accompanying drawing 7, accompanying drawing 7 is the phantom drawings after a kind of shutoff that prevents the method for blocking that caves in for shield structure jack-in process provided by the invention: left slide rail top 16 is installed in cutter head left side wall 11, and right slide rail top 15 is installed on the cutter head right side wall 12.Volume lock closure gate 6 has been installed between two slide rails, and volume lock closure gate 6 is brought to liter from the cutter head base plate under the promotion of volume lock power 7, shutoff the middle part of jacking cutter head.
With reference to accompanying drawing 8, accompanying drawing 8 is a kind of embodiment schematic diagrames that prevent the method for blocking that caves in for shield structure jack-in process provided by the invention: jacking cutter head 1 is in 21 li work of soil, and cutter 2 is in 21 li jackings forward of soil.In order to prevent in jack-in process, caving in; volume lock closure gate 6 is under the effect of volume lock power 7; be pushed to cutter head top board 5 along slide rail 3 from cutter head base plate piece 4; thereby with the front portion of soil 21 shutoff at jacking cutter head 1; the earth and the swelling that prevent soil 21 are gone into to the rear portion of jacking cutter head 1; protection operating personnel's safety can normally be carried out the tunnel jacking construction.
Above described embodiment be that the present invention will be described, be not that the present invention is limited.Design, method and scope that the present invention is claimed all are documented in claims of the present invention.
Claims (8)
1. one kind is used for the method for blocking that shield structure jack-in process prevents from caving in, and comprises the jacking machine, it is characterized in that: (1) two corresponding side walls of jacking cutter head (11), (12) and cutter head base plate (4) at the jacking machine are installed slide rail (3); Volume lock closure gate (6) is installed between two slide rails; When the landslide of water burst or earth takes place when, volume lock closure gate (6) is raised to cutter head top board (5) from cutter head base plate (4), with the middle part shutoff of jacking cutter head (1) under the promotion of volume lock power (7), anti-sealing and landslide earth pour in from jacking cutter head (1) front portion, guarantee the safety of tunnelling.
2. according to claim 1ly prevent the method for blocking that caves in for shield structure jack-in process, it is characterized in that: described volume lock closure gate (6) is interconnected by the polylith metal sheet and forms.
3. according to claim 2ly prevent from the method for blocking that caves in from it is characterized in that: between the described polylith metal sheet rubber weather strip is installed for shield structure jack-in process.
4. according to claim 1ly prevent from the method for blocking that caves in from it is characterized in that: between described volume lock closure gate (6) and the slide rail (3) rubber weather strip is installed for shield structure jack-in process.
5. according to claim 1 and 2ly prevent from the method for blocking that caves in from it is characterized in that for shield structure jack-in process: first of described volume lock closure gate (6) top is that the forward position of shutoff top board (17) is serrated knife.
6. according to claim 5ly prevent from the method for blocking that caves in from it is characterized in that for shield structure jack-in process: in described serrated knife sawtooth power is installed.
7. according to claim 6ly prevent from the method for blocking that caves in from it is characterized in that for shield structure jack-in process: described sawtooth power is the vibrations power, can make sawtooth produce vibrations when rising.
8. according to claim 6ly prevent the method for blocking that caves in for shield structure jack-in process, it is characterized in that: described sawtooth power is reciprocating power, sawtooth is produced when rising move back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110455159 CN103184874A (en) | 2011-12-28 | 2011-12-28 | Plugging method for preventing collapse in shield tunneling machine jacking process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110455159 CN103184874A (en) | 2011-12-28 | 2011-12-28 | Plugging method for preventing collapse in shield tunneling machine jacking process |
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| Publication Number | Publication Date |
|---|---|
| CN103184874A true CN103184874A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110455159 Pending CN103184874A (en) | 2011-12-28 | 2011-12-28 | Plugging method for preventing collapse in shield tunneling machine jacking process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978481A (en) * | 2018-08-20 | 2018-12-11 | 中铁六局集团天津铁路建设有限公司 | Box-body jacking in place after anti-collapse method |
-
2011
- 2011-12-28 CN CN 201110455159 patent/CN103184874A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978481A (en) * | 2018-08-20 | 2018-12-11 | 中铁六局集团天津铁路建设有限公司 | Box-body jacking in place after anti-collapse method |
| CN108978481B (en) * | 2018-08-20 | 2019-11-05 | 中铁六局集团天津铁路建设有限公司 | Box-body jacking in place after anti-collapse method |
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Application publication date: 20130703 |