CN101353965A - Shield hole-drilling apparatus and hole-drilling construction method thereof - Google Patents
Shield hole-drilling apparatus and hole-drilling construction method thereof Download PDFInfo
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- CN101353965A CN101353965A CNA2008100425561A CN200810042556A CN101353965A CN 101353965 A CN101353965 A CN 101353965A CN A2008100425561 A CNA2008100425561 A CN A2008100425561A CN 200810042556 A CN200810042556 A CN 200810042556A CN 101353965 A CN101353965 A CN 101353965A
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- shield
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Abstract
The invention discloses a shield-entry receiving device which is an assembled steel structure with a cavity; the receiving device is hermetically arranged around a shield-entry reservation hole on the space enclosing structure of a foundation pit; a slurry pressurizing pipeline accessing to the cavity is arranged on the receiving device. The invention also discloses an entry construction method by using the shield-entry receiving device. Since the shield-entry receiving device is provided with the sealed cavity, after adding water, slurry or compressed air into the cavity by the slurry pressurizing pipeline, pressure environment, the pressure of which is balanced with that of outside water and soil is formed in the receiving device during the shield entry. Therefore, the application of the shield-entry receiving device and the method thereof for the shield-entry construction has the advantages of lowering cost, reducing safety hazards and realizing the quick and safe entry of the shield, and the shield-entry receiving device and the method thereof can be applied to the construction of the shield of large tunnels.
Description
Technical field:
The present invention relates to a kind of apparatus and method that are used for shield tunnel construction, especially relate to a kind of shield receiving system and job practices thereof, belong to tunnel construction engineering field.
Background technology:
In the shield tunnel construction, when the shield machine driving closes on the foundation ditch of received well, will prepare to receive the construction of shield.On the space enclosing structure that receives foundation ditch, generally all be reserved with sealed up shield hole to be provided circle, this hole to be provided circle below is provided with the reception pedestal of steel or concrete system, and shield machine just receives foundation ditch and arrives on the reception pedestal by removing to enter in the hole to be provided circle of sealing up a door when entering the hole.The construction of the turnover hole of shield structure will be guaranteed around the hole, receive the soil stabilization of foundation pit enclosure structure outside, prevents that the soil body from leaking, caving in and run off.The turnover hole of shield structure construction at present generally takes following several respects to stablize the measure of the soil body: one, in the certain limit that receives the foundation pit enclosure structure outside, adopt suitable stratum consolidation technology, the soil body of shield section is reinforced improvement as high-pressure rotary jet grouting pile method, SMW worker's method etc.; Two, adopt suitable stratum precipitation mode that the groundwater table that receives foundation ditch outside, shield section is manually reduced, thereby preventing in the shield process that underground water pours in from the slit receive foundation ditch and damage; Three, a circle hermetic seal packing ring is installed at shield hole to be provided circle place in receiving foundation ditch, guarantees the safety of shield to prevent the muddy water seepage.
Yet above-mentioned existing shield construction technology exists certain defective: 1, the soil stabilization and the stratum precipitation in the big zone of portal outside need, and the big and strengthening quality of cost is difficult to guarantee; Though 2, circle seal washer in hole has certain sealing effect, but advance to be very easy in the process of hole turn up or damage at shield machine, thereby cause muddy water to leak, cause engineering accident in case take place to destroy, on-the-spot being difficult to handled timely and effectively, causes dangerous situation easily.Therefore, existing shield reception construction safety hidden danger is many, construction risk is big, occur easily caving in, leak, leak phenomenons such as mud, spillage, cause the structural safety problem or cause stratum settlement excessive, thus the working security and the construction quality of reduction construction of tunnel.
After retrieval, find existing domestic and international technical literature, application number is that 200510112098.0 Chinese patent application " cave entrance waterproof appts of shield tunnel " (publication number CN1789666) discloses a kind of cave entrance waterproof appts that is used for shield tunnel, this device is provided with rubber tile in walling crib import department, and by the pressing of air bag and steel spring plate to it, rubber tile closely is wrapped in shield structure or lining cutting external surface, make that the gap reaches good watertightness between shield structure and the walling crib, avoid issuable muddy water seepage.Yet this invention still takes flexible sealing materials such as the rubber tile similar with hole circle seal washer, air bag to reach the sealing of hole circle, thereby still be difficult to avoid enclose the consequence that seal washer turns up equally or damages with the hole, air bag and steel spring plate also are difficult to reach the pressure that is enough to the balance soil body, muddy water simultaneously, therefore the reliability of sealing be can't guarantee, soil stabilization and stratum dewatering construction step that this technical scheme still can't be omitted the cost costliness put off until some time later.
Summary of the invention:
Technical problem to be solved by this invention is to overcome shield technical difficulty height in the existing shield tunnel construction, big, the potential safety hazard defective how of cost, a kind of shield receiving system and job practices thereof are provided, it no longer needs the soil body that receives the foundation pit enclosure structure outside is reinforced and stratum precipitation, thereby greatly reduce cost, avoid muddy water to leak simultaneously to reduce the potential safety hazard of engineering, realize the shield structure fast and safely enter the hole.
It is as follows that the present invention solves the technical scheme that its technical problem takes:
A kind of shield receiving system, it is the pin-connected panel steel construction piece that has cavity, this receiving system be installed on hermetically receive shield hole to be provided circle on the foundation pit enclosure structure around, which is provided with the muddy water capstan that feeds cavity.
Shield receiving system of the present invention includes the back door frame, vertical plates on both sides, front vertical plate and two upper cover plates, this back door frame is a frame type member, be positioned at the rear side of described receiving system, it is fastened on the shield hole to be provided circle reception foundation pit enclosure structure all around, this vertical plates on both sides is positioned at the left and right sides of described receiving system, this front vertical plate is positioned at the front side of described receiving system, described back door frame, the mutual seal welding of vertical plates on both sides and front vertical plate is pieced together the cavity that surrounds described receiving system, its underpart is fastened on the reception pedestal of shield hole to be provided circle below, two upper cover plates are hinged and be covered in the upside of described receiving system cavity with left and right sides riser respectively, junction between above-mentioned each member is equipped with the rubber sealing rod in order to sealed cavity, and described muddy water capstan is arranged on the cant board in order to fill in muddy water in the receiving system cavity.
A kind of method of carrying out the shield construction, it uses above-mentioned shield receiving system, constructs according to the following step:
(1) described shield receiving system is installed, its rear portion is fixed on the reception foundation pit enclosure structure around the shield hole to be provided circle, its underpart is fastened on the reception pedestal of shield hole to be provided circle below or receives on the base plate of foundation pit;
(2) steel concrete that cuts in the shield hole to be provided circle according to the technological requirement piecemeal is sealed up a door;
(3) closing two upper cover plates also will be fixing, thereby seal the cavity of described shield receiving system;
(4) according to the size that receives the outside soil pressure of foundation pit enclosure structure, in the cavity of described receiving system, add water, mud or compressed air, in this receiving system, to form the pressure environment that balances each other with outside water and soil pressure by the muddy water capstan;
(5) implement the shield operation;
(6) treat that shield machine enters described receiving system fully after, extract muddy water or air in the described cavity out by the muddy water capstan, treat the complete release of this receiving system after, open described upper cover plate, remove shield machine.
Compare with existing shield technology, the present invention has adopted the servicing unit of a kind of shield receiving system as shield construction, before the shield it is installed in the hole to be provided circle around.Because this shield receiving system has the inner chamber of sealing, so after in this cavity, adding water, mud or compressed air, when shield, can in this receiving system, form the pressure environment that balances each other with outside water and soil pressure by the muddy water capstan; Therefore, receiving the inside and outside pressure balance of foundation pit enclosure structure has avoided the muddy water between shield structure and the space enclosing structure hole to be provided circle to leak, guaranteed the safety of shield, even the dangerous situation that something unexpected happened, also be limited in the inner chamber of shield receiving system, be convenient to carry out timely and effectively emergency processing.In addition, the balance of external and internal pressure has also been exempted the necessity of outside soil stabilization construction and stratum precipitation, thereby has reduced engineering cost widely, has also improved workmanship simultaneously.In a word, use shield receiving system of the present invention and method thereof and carry out the construction of shield, reached and reduce cost, reduce potential safety hazard, realize that the shield structure fast and safely advances the beneficial effect in hole.
Description of drawings:
Fig. 1 is a structural upright schematic diagram of the present invention.
Fig. 2 is one of a shield construction method step of the present invention schematic diagram.
Fig. 3 is two schematic diagrames of shield construction method step of the present invention.
Fig. 4 is three schematic diagrames of shield construction method step of the present invention.
Fig. 5 is four schematic diagrames of shield construction method step of the present invention.
Fig. 6 is five schematic diagrames of shield construction method step of the present invention.
The specific embodiment:
The present invention receives construction at the shield structure around shield hole to be provided circle on the reception foundation pit enclosure structure shield receiving system to be installed in advance, and, implement the constructing operation of shield again at the inner environment that balances each other with outside water and soil pressure that forms of this receiving system.Now with specific embodiment the present invention is described in further detail in conjunction with the accompanying drawings.
At first please in conjunction with consulting Fig. 1 and Fig. 2 structural representation of the present invention, diagram shield receiving system is the pin-connected panel steel construction piece that has cavity, adopts hermetically sealed design.This shield receiving system be installed on hermetically receive shield hole to be provided circle 11 on the foundation pit enclosure structure 9 around, which is provided with the muddy water capstan 8 that feeds cavity.Described shield receiving system includes back door frame 2, vertical plates on both sides 1, front vertical plate 3 and two upper cover plates 4.The frame type member that described back door frame 2 is welded for steel, it is positioned at the rear side of described receiving system, this back door frame 2 is fastened on the shield hole to be provided circle 11 reception foundation pit enclosure structure 9 all around by bolt, and this shield hole to be provided circle 11 all is within the steel framework of back door frame 2.Described vertical plates on both sides 1 is positioned at the left and right sides of described receiving system, and described front vertical plate 3 is positioned at the front side of described receiving system, and this vertical plates on both sides 1 and front vertical plate 3 are plate-like piece.Described back door frame 2, vertical plates on both sides 1 and front vertical plate 3 mutual seal weldings and assembly surround the cavity of described receiving system, their bottom is installed by bolt and is fastened on the reception pedestal 7 of shield hole to be provided circle 11 belows, if this receives pedestal 7 reinforced concrete plinths, then will back door frame 2, vertical plates on both sides 1 and front vertical plate 3 be connected with built-in fitting on the reinforced concrete plinth 7; If receive pedestal 7 steel pedestals, then incite somebody to action back door frame 2, vertical plates on both sides 1 and front vertical plate 3 and be connected at the built-in fitting that receives on the base plate of foundation pit.See also Fig. 2 again, described about two upper cover plates 4 hinged and can rotate with left and right sides riser 1 respectively by hinge 5 around hinge 5, after they are turned down successively, just be covered in the upside of described receiving system cavity.In order to guarantee the overall tightness of described shield receiving system, door frame 2, vertical plates on both sides 1 and front vertical plate 3 and receive between the pedestal 7 behind above-mentioned each member, between the space enclosing structure 9 of back door frame 2 and reception foundation ditch, between back door frame 2, vertical plates on both sides 1 and front vertical plate 3 and two upper cover plates 4, two upper cover plate 4 junctions each other all are equipped with the rubber sealing rod 6 in order to sealed cavity, to guarantee that leaking can not appear in described shield receiving system under the pressurization situation.Described muddy water capstan 8 is arranged on the cant board 1 and feeds in the cavity of described shield receiving system, in order to fill in muddy water and exert pressure in the receiving system cavity.Because described shield receiving system inside needs pressurization, so the strength and stiffness of its structure should design according to the force value that will bear.
The present invention also provides and has used above-mentioned shield receiving system to advance the method for hole construction, existing its work progress of accompanying drawings, and this shield job practices is carried out according to the following step:
(1), described shield receiving system is installed with reference to Fig. 2.With the back door frame 2 at its rear portion by being bolted on the reception foundation pit enclosure structure 9 around the shield hole to be provided circle 11; If the reception pedestal 7 of shield hole to be provided circle 11 belows be a reinforced concrete plinth, then will back door frame 2, vertical plates on both sides 1 and front vertical plate 3 be connected with built-in fitting on the reinforced concrete plinth 7; If receiving pedestal 7 be the steel pedestal, then will back door frame 2, vertical plates on both sides 1 and front vertical plate 3 be connected at the built-in fitting that receives on the base plate of foundation pit, thereby be fastened on shield receiving system bottom on the reception pedestal 7 or on the reception base plate of foundation pit.
(2) consult Fig. 3, seal up a door according to the steel concrete that the technological requirement piecemeal cuts in the shield hole to be provided circle 11, the work of cutting can be carried out according to the order of N1-N9 among Fig. 3.
(3) consult Fig. 4, treat that steel concrete seals up a door to cut to close two upper cover plates 4 after finishing, and with bolt it is tightened fixing, thereby seal the cavity of described shield receiving system.
(4) consult Fig. 5, characteristics and needs according to different engineerings, according to the size that receives foundation pit enclosure structure 9 outside soil body lateral pressures, in the cavity of described receiving system, add water by muddy water capstan 8, perhaps mud, perhaps directly add the compression air, in this shield receiving system internal cavities, to form the pressure environment that balances each other with outside water and soil pressure.Institute's plus-pressure should be slightly larger than the water and soil force value that receives foundation pit enclosure structure 9 outsides in the cavity, to guarantee shield structure 10 (see figure 1) in advancing the hole process, shield receiving system internal pressure is greater than external pressure, and problems such as mud, spillage can not occur leaking, thereby guarantee that shield structure 10 advances the hole process safe.
(5) consult Fig. 6, treat that pressure in the described shield receiving system is able to guarantee that shield structure 10 advances the stress level in hole smoothly after, advance the hole operation according to what common process was implemented shield structure 10.
(6) treat that shield machine 10 enters the cavity of described shield receiving system fully after, extract muddy water or air in these cavitys out by muddy water capstan 8, treat the complete release of this shield receiving system after, open described upper cover plate 4, remove shield machine 10, carry out follow-up construction.
In sum, that uses that shield receiving system of the present invention and method thereof carry out shield structure 10 advances hole construction, owing to when shield structure 10 enters the hole, can in this receiving system, form the pressure environment that balances each other with outside water and soil pressure, therefore, shield structure 10 enters the zone, hole and need not soil stabilization and dewatering construction, thus reduce cost; Avoided shield structure 10 to advance hole caused leakage mud spillage phenomenon simultaneously, reduced potential safety hazard, reduced the construction risk of shield effectively, dangerous situation occurred even enter the hole, also may be limited in the inner chamber of shield receiving system, be convenient to timely and effectively dangerous situation be rescued.In a word, the present invention has reached the beneficial effect that the shield structure fast and safely enters the hole, can be applied in the shield construction of large tunnel.
Claims (3)
1, a kind of shield receiving system, it is characterized in that: described receiving system is the pin-connected panel steel construction piece that has cavity, its be installed on hermetically receive shield hole to be provided circle on the foundation pit enclosure structure around, this receiving system is provided with the muddy water capstan that feeds cavity.
2, shield receiving system according to claim 1, it is characterized in that: described receiving system includes the back door frame, vertical plates on both sides, front vertical plate and two upper cover plates, this back door frame is a frame type member, be positioned at the rear side of described receiving system, it is fastened on the shield hole to be provided circle reception foundation pit enclosure structure all around, this vertical plates on both sides is positioned at the left and right sides of described receiving system, this front vertical plate is positioned at the front side of described receiving system, described back door frame, the mutual seal welding of vertical plates on both sides and front vertical plate is pieced together the cavity that surrounds described receiving system, its underpart is fastened on the reception pedestal of shield hole to be provided circle below, two upper cover plates are hinged and be covered in the upside of described receiving system cavity with left and right sides riser respectively, junction between above-mentioned each member is equipped with the rubber sealing rod in order to sealed cavity, and described muddy water capstan is arranged on the cant board in order to fill in muddy water in the receiving system cavity.
3, a kind of method of using the described shield receiving system of claim 2 to carry out the shield construction is characterized in that: receive the shield construction according to the following step:
(1) described shield receiving system is installed, its rear portion is fixed on the reception foundation pit enclosure structure around the shield hole to be provided circle, its underpart is fastened on the reception pedestal of shield hole to be provided circle below or receives on the base plate of foundation pit;
(2) steel concrete that cuts in the shield hole to be provided circle according to the technological requirement piecemeal is sealed up a door;
(3) closing two upper cover plates also will be fixing, thereby seal the cavity of described shield receiving system;
(4) according to the size that receives the outside soil pressure of foundation pit enclosure structure, in the cavity of described receiving system, add water, mud or compressed air, in this receiving system, to form the pressure environment that balances each other with outside water and soil pressure by the muddy water capstan;
(5) implement the shield operation;
(6) treat that shield machine enters described receiving system fully after, extract muddy water or air in the described cavity out by the muddy water capstan, treat the complete release of this receiving system after, open described upper cover plate, remove shield machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100425561A CN101353965B (en) | 2008-09-05 | 2008-09-05 | Shield hole-drilling apparatus and hole-drilling construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100425561A CN101353965B (en) | 2008-09-05 | 2008-09-05 | Shield hole-drilling apparatus and hole-drilling construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101353965A true CN101353965A (en) | 2009-01-28 |
| CN101353965B CN101353965B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100425561A Active CN101353965B (en) | 2008-09-05 | 2008-09-05 | Shield hole-drilling apparatus and hole-drilling construction method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145529A1 (en) * | 2009-06-15 | 2010-12-23 | 广东华隧建设股份有限公司 | Device used for sealed launching and arrival of shield machine |
| CN101566063B (en) * | 2009-06-04 | 2011-02-09 | 上海交通大学 | Method of reinforcing soil body for inlet and outlet cave mouths of tunnel shield |
| CN102322269A (en) * | 2011-08-30 | 2012-01-18 | 北京城乡建设集团有限责任公司 | Super early receiving supporting structure of shield machine and super early receiving method |
| CN102330568A (en) * | 2011-06-21 | 2012-01-25 | 上海隧道工程股份有限公司 | Shield arrival gate plate type emergency safety device |
| CN102337897A (en) * | 2011-06-21 | 2012-02-01 | 上海隧道工程股份有限公司 | Shield integral type arrival receiving device and construction method employing same |
| CN102635362A (en) * | 2011-11-02 | 2012-08-15 | 中铁隧道集团有限公司 | Secondary reception constructing method for shield arrival |
| CN102635361A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN102797468A (en) * | 2012-08-22 | 2012-11-28 | 中铁第四勘察设计院集团有限公司 | Minimum over-burden originating method for shield tunnel |
| CN103899325A (en) * | 2014-04-23 | 2014-07-02 | 上海隧道工程股份有限公司 | Construction method for shield machine to enter hole to receive concrete box |
| CN105041327A (en) * | 2015-08-27 | 2015-11-11 | 北京建工土木工程有限公司 | Subsurface tunnel reverse shield receiving method |
| CN105839643A (en) * | 2016-05-23 | 2016-08-10 | 浙江省交通规划设计研究院 | Tunnel in-hole construction method adopting foundation pit support |
| CN114810112A (en) * | 2022-06-28 | 2022-07-29 | 北京建工土木工程有限公司 | Device for chiseling enclosure structure at shield end well opening and construction method |
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2008
- 2008-09-05 CN CN2008100425561A patent/CN101353965B/en active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566063B (en) * | 2009-06-04 | 2011-02-09 | 上海交通大学 | Method of reinforcing soil body for inlet and outlet cave mouths of tunnel shield |
| WO2010145529A1 (en) * | 2009-06-15 | 2010-12-23 | 广东华隧建设股份有限公司 | Device used for sealed launching and arrival of shield machine |
| CN102337897A (en) * | 2011-06-21 | 2012-02-01 | 上海隧道工程股份有限公司 | Shield integral type arrival receiving device and construction method employing same |
| CN102330568A (en) * | 2011-06-21 | 2012-01-25 | 上海隧道工程股份有限公司 | Shield arrival gate plate type emergency safety device |
| CN102322269B (en) * | 2011-08-30 | 2013-04-24 | 北京城乡建设集团有限责任公司 | Super early receiving supporting structure of shield machine and super early receiving method |
| CN102322269A (en) * | 2011-08-30 | 2012-01-18 | 北京城乡建设集团有限责任公司 | Super early receiving supporting structure of shield machine and super early receiving method |
| CN102635362B (en) * | 2011-11-02 | 2014-05-07 | 中铁隧道集团有限公司 | Secondary reception constructing method for shield arrival |
| CN102635362A (en) * | 2011-11-02 | 2012-08-15 | 中铁隧道集团有限公司 | Secondary reception constructing method for shield arrival |
| CN102635361A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN102635361B (en) * | 2012-05-06 | 2014-04-30 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN102797468B (en) * | 2012-08-22 | 2015-04-22 | 中铁第四勘察设计院集团有限公司 | Minimum over-burden originating method for shield tunnel |
| CN102797468A (en) * | 2012-08-22 | 2012-11-28 | 中铁第四勘察设计院集团有限公司 | Minimum over-burden originating method for shield tunnel |
| CN103899325A (en) * | 2014-04-23 | 2014-07-02 | 上海隧道工程股份有限公司 | Construction method for shield machine to enter hole to receive concrete box |
| CN103899325B (en) * | 2014-04-23 | 2016-04-13 | 上海隧道工程有限公司 | The construction method that concrete casing shield receives |
| CN105041327A (en) * | 2015-08-27 | 2015-11-11 | 北京建工土木工程有限公司 | Subsurface tunnel reverse shield receiving method |
| CN105839643A (en) * | 2016-05-23 | 2016-08-10 | 浙江省交通规划设计研究院 | Tunnel in-hole construction method adopting foundation pit support |
| CN114810112A (en) * | 2022-06-28 | 2022-07-29 | 北京建工土木工程有限公司 | Device for chiseling enclosure structure at shield end well opening and construction method |
| CN114810112B (en) * | 2022-06-28 | 2022-10-21 | 北京建工土木工程有限公司 | Device for chiseling enclosure structure at shield end well opening and construction method |
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| CN101353965B (en) | 2011-09-21 |
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Owner name: SHANGHAI TUNNEL ENGINEERING CO., LTD. Free format text: FORMER OWNER: SHANGHAI TUNNEL ENGINEERING CO LTD Effective date: 20150130 |
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Effective date of registration: 20150130 Address after: 200232 Shanghai Wanping Road No. 1099 Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD. Address before: 200082 No. 118, Dalian Road, Shanghai, Yangpu District Patentee before: Shanghai Tunnel Engineering Co., Ltd. |