CN101761343B - Rapid and continuous excavation constructing method for overlarge-diameter soil pressure balance shield - Google Patents
Rapid and continuous excavation constructing method for overlarge-diameter soil pressure balance shield Download PDFInfo
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- CN101761343B CN101761343B CN2009102006976A CN200910200697A CN101761343B CN 101761343 B CN101761343 B CN 101761343B CN 2009102006976 A CN2009102006976 A CN 2009102006976A CN 200910200697 A CN200910200697 A CN 200910200697A CN 101761343 B CN101761343 B CN 101761343B
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Abstract
The invention relates to a rapid and continuous excavation constructing method for an overlarge-diameter soil pressure balance shield, in particular to a method which is used for a tunnel project and eliminates slag soil cut by a shield. The method comprises the following steps of: delivering the slag soil cut by the shield into a soil collecting pit of a working well by a synchronous extending horizontal belt conveyor and grasping the slag soil in the soil collecting pit into a hollow soil collecting bin by a vertical grasping bucket; fully and uniformly stirring the slag soil in the hollow soil collecting bin by a horizontal spiral machine, matching with a valve at a discharge opening at the bottom, controlling the excavating speed and leading a soil body to fall into an earthwork vehicle at the lower part; fully loading the earthwork vehicle, switching off the valve of the discharge opening and waiting for the next earthwork vehicle for being in position and loading. The rapid and continuous excavation constructing method for the overlarge-diameter soil pressure balance shield effectively combines the synchronous extending horizontal belt conveyor and the vertical grasping bucket by the soil collecting pit and the hollow soil collecting bin, and achieves the aims of continuous transportation in a tunnel and efficient excavation on the ground.
Description
Technical field
The present invention relates to a kind of dregs transportation job practices, when referring to a kind of earth pressure balanced shield, EPBS driving especially, can be continuously and transport the overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method of dregs apace.
Background technology
Along with the extensive subway construction of China is progressively carried out, the research and development of city underground engineering construction technology have become an important problem.Shield tunnel has extensively received gazing at of each side, particularly earth pressure balanced shield, EPBS with the characteristics that it has environmental protection, and it is stratum applicability and environmental suitability and receive much concern widely.
At present; The mini-sub earth pressure balanced shield, EPBS mainly is to rely on conveying worm that dregs (promptly cutting spoir) is transported to the vehicle frame conveyor; Be transported in the native case on the electric locomotive by conveyor then, transport to the work well head by the electric locomotive soil that will be cut again, through purlin car handling to ground.
For diameter surpassed 14 meters overlarge-diameter soil pressure balance shield, following problem then appearred in dregs transportation job practices as traditional more than still adopting easily:
(1) because the finite volume of electric locomotive soil case causes intermittent being unearthed, so the pause number of times increase during tunneling of shield structure, stratum and ground construction of structures on every side had a negative impact;
(2) means of transportation of electric locomotive is subject to space resources utilization limited in the tunnel;
When (3) adopting the electric locomotive transportation, the fully loaded dregs of native case drops in orbit easily, clears up a large amount of human and material resources of meeting cost, influences the clean and tidy of constructing tunnel.
Find through retrieval in addition; Chinese patent number 200610113264.3 " job practicess that a kind of earth pressure balance long-distance pipe jacking dolly is unearthed and works continuously "; Be a kind of in the long-distance pipe jacking engineering construction, realize the unearthed job practices of working continuously of a kind of earth pressure balance long-distance pipe jacking dolly that dolly is unearthed and works continuously.It when a dolly dress soil, also can get into an empty wagons through narrow type guide rail and one or more sets hydraulic lifting devices are installed near push-bench; Or a plurality of empty wagons being arranged again subsequently, the empty wagons that the back is got into respectively gets up with the lifting of hydraulic lifting device, after first dolly filled soil; Neutral gear position passes through in the middle of the hydraulic lifting device respectively, hangs out to active well backward always, and puts down from the hydraulic lifting device near the empty wagons at the place of being unearthed; Be pushed into the place's dress soil that is unearthed, follow-up one or more empty wagons go forward one by one forward successively, and by the lifting of hydraulic lifting device; Repeat said process; Just can the time of jacking operation be linked up basically, similar with traditional dregs transportation job practices, and all adopt the mode that electric locomotive is unearthed that dregs is transported active well; Still can't solve the problem that overlarge-diameter soil pressure balance shield is produced in the dregs transportation, so the mode of being unearthed with electric locomotive is not suitable for overlarge-diameter soil pressure balance shield.
Summary of the invention
The technical problem that the present invention will solve is: a kind of overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method is provided; Improve and to utilize the dregs transportation job practices that electric locomotive is unearthed can't be continuously and the problem of being unearthed fast, and the use of electric locomotive be subject to tunnel space and the shortcoming of the cleaning work labor intensive of the dregs that drops.
Technical solution of the present invention is: a kind of overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method is provided, and is used for construction of tunnel and gets rid of the dregs under the cutting of shield structure, it is characterized in that the method includes the steps of:
Level in the tunnel is transported, and utilizes the connecting bolt of circular tunnel section of jurisdiction in the tunnel, to set up synchronous extending level conveyor, is transported in the collection heatable adobe sleeping platform of active well through synchronous extending level conveyor by the dregs under the cutting of shield structure;
Vertically transporting in the active well utilizes vertical grab bucket will collect the aerial collection Tu Cang of dregs grasping operation to the near floor level in the heatable adobe sleeping platform;
Aerial collection Tu Cang vertically transports, dregs aloft collect in native the storehouse in stir through the flat spin machine after, valve and the control of opening drain hole place, bottom, the native storehouse of the aerial collection speed of being unearthed, dregs receives gravity and falls in cubic metre of earth car of below; And
The level on ground is transported, and then closes the valve of drain hole after cubic metre of earth car is fully loaded, and fully loaded earthwork car is just extensible, and next earthwork car continues in place and preparation is loaded.
Aforesaid overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method, this synchronous extending level conveyor horizontally set is carrying roller slidably, makes synchronous extending level conveyor be adapted to tunnel trend and adjusts.
Aforesaid overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method; This synchronous extending level conveyor includes extension apparatus in interior host apparatus of well and the tunnel; An end of host apparatus is positioned at the collection heatable adobe sleeping platform top of active well in the well, and an end of extension apparatus is positioned at the soil outlet below of shield machine in the tunnel, and the stent length of host apparatus immobilizes in the well; And with hydraulic pressure server controls storage device of the belt; Belt is advanced and elongation automatically with the shield structure, and when the shield structure advanced the end segment assembly, inwall suspension welding conveyor extended support in the tunnel.
Aforesaid overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method, this synchronous extending level conveyor still includes clearing apparatus, and clearing apparatus includes polyurethane material brush and steel plate, and cooperates spray and sewerage treatment module to carry out cleaning work.
Aforesaid overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method; In the step that level in active well is transported; But be the operation of controlling synchronous extending level conveyor with program logic controller, but and the control system compatible of this program logic controller and shield structure, and camera and urgent start-stop switch can be installed at interval; The shooting signal of camera can be sent to shield structure operating room and ground monitoring chamber, to realize Long-distance Control.
Aforesaid overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method collects Tu Cang in the air and includes four layers, and first floor is parked a cubic metre of earth car; The side plate of the second layer is to do the slope with steel plate; And the flat spin machine is set the dregs in the native storehouse of aerial collection is stirred, cooperate base plate drain hole place that hydraulically operated gate is installed, the unearthed speed of control dregs and dregs unloaded is put to earthwork car; The 3rd layer all around with the steel concrete enclosing; Form the aggregate bin that ground stores dregs, the 4th layer of setting be across purlin, active well collection heatable adobe sleeping platform top car grab bucket beam and the grab bucket of purlin car, and the car collection heatable adobe sleeping platform of grabbing bucket in active well in purlin is grabbed soil back handling to collecting in the native storehouse in the air.
Advantage of the present invention is: this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method is provided with collection heatable adobe sleeping platform and aerial collection Tu Cang; And effectively combine synchronous extending level conveyor and vertical grab bucket; The dregs with in the tunnel that can be quick and continuous transports out ground; Represent the sufficient advantage of capacity; And can guarantee that the overlarge-diameter soil pressure balance shield machine continuously and the free of discontinuities tunneling construction, effectively reduces the ambient influnence of shield driving to the stratum, the synchronous extending level conveyor of this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method is provided with the upper space that effectively utilizes the tunnel in addition; Make the space configuration in the tunnel more optimize and improve the fluency of constructing; And this high device, equipment and system of overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method operation technique strength maturity factor so method of operating is simple, and has the low advantage with maintenance convenient of reliability height, fault rate.
Description of drawings
Fig. 1 is the schematic flow sheet of a specific embodiment of overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method of the present invention.
The specific embodiment
As shown in Figure 1; Disclose the schematic flow sheet of overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method provided by the present invention; The implementation step of this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method comprises: the level of carrying out in the tunnel is earlier transported, and what then the execution work well was interior vertically transporting, and collects vertically transporting of Tu Cang in the air; Transport with the level on ground, be used for construction of tunnel and get rid of the dregs under the cutting of shield structure.
Level in the tunnel is transported in the step; Utilize the connecting bolt of circular tunnel section of jurisdiction in the tunnel, to set up synchronous extending level conveyor; Be transported in the collection heatable adobe sleeping platform of active well through synchronous extending level conveyor by the dregs under the cutting of shield structure, wherein, but the present invention is the operation with this synchronous extending level conveyor of program logic controller control; But and the control system compatible of this program logic controller and shield structure; And camera and urgent start-stop switch can be installed at interval, the shooting signal of camera can be sent to shield structure operating room and ground monitoring chamber, to realize Long-distance Control.
Vertically transporting in the step in active well utilizes vertical grab bucket will collect the aerial collection Tu Cang of dregs grasping operation to the near floor level in the heatable adobe sleeping platform.
In vertically transporting in the step of aerial collection Tu Cang; Dregs aloft collect in the native storehouse stir through the flat spin machine after; Open the valve and the unearthed speed of control at drain hole place, bottom, the native storehouse of aerial collection; Dregs receives gravity and falls in the earthwork car of below, and wherein, the gate of employing is a hydraulically operated gate.
Transport in the step in the level on ground, then close the valve of drain hole after cubic metre of earth car is fully loaded, fully loaded earthwork car is just extensible, and next earthwork car continues in place and preparation is loaded.
In above-mentioned, this synchronous extending level conveyor adopts the storage band mode of bag heart type or S type, and re-opens with fluid pressure type and mechanical double and tightly to install; Make development length be not less than 75 meters; Make 75 meters of the disposable propellings of shield structure and the belt of not transferring, be advanced into the belt limiting length after, next joint belt continues; And cold glue sulfuration butt joint is adopted in the connection between the belt; And in the short time, accomplish, this synchronous extending level conveyor horizontally set is carrying roller slidably, makes synchronous extending level conveyor be adapted to tunnel trend and adjusts.
In addition, this synchronous extending level conveyor includes extension apparatus in interior host apparatus of well and the tunnel, and an end of host apparatus is positioned at the collection heatable adobe sleeping platform top of active well in the well; An end of extension apparatus is positioned at the soil outlet below of shield machine in the tunnel; The stent length of host apparatus immobilizes in the well, and with hydraulic pressure server controls storage device of the belt, belt is advanced and elongation automatically with the shield structure; And when the shield structure advances the end segment assembly; Inwall suspension welding conveyor extends support in the tunnel, and in addition, this synchronous extending level conveyor still includes clearing apparatus; Clearing apparatus includes polyurethane material brush and steel plate, and cooperates spray and sewerage treatment module to carry out cleaning work.
Wherein, collect Tu Cang in the air and include four layers, first floor is parked a cubic metre of earth car; The side plate of the second layer is to do the slope with steel plate; And the flat spin machine is set the dregs in the native storehouse of aerial collection is stirred, cooperate base plate drain hole place that hydraulically operated gate is installed, the unearthed speed of control dregs and dregs unloaded is put to earthwork car; The 3rd layer all around with the steel concrete enclosing; Form the aggregate bin that ground stores dregs, the 4th layer of setting be across purlin, active well collection heatable adobe sleeping platform top car grab bucket beam and the grab bucket of purlin car, and the car collection heatable adobe sleeping platform of grabbing bucket in active well in purlin is grabbed soil back handling to collecting in the native storehouse in the air.
In addition; The casting reinforced concrete barricade forms the collection heatable adobe sleeping platform in the active well, and collection heatable adobe sleeping platform capacity is looked the every ring of the shield structure amount of being unearthed and decide with the aerial native holding capacity of bin of collection, and collects heatable adobe sleeping platform and have certain depth; Prevent that conveyor termination heap mud from influencing the conveyor running, to satisfy the vertical transport requirement.
In sum; This overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method is through being provided with collection heatable adobe sleeping platform and aerial collection Tu Cang; And combine synchronous extending level conveyor and vertical grab bucket, reach in the tunnel efficient purpose of being unearthed on transportation continuously and the ground, and satisfy the overlarge-diameter soil pressure balance shield machine in excavation operation; A large amount of dregs are the demand of outward transport in time; And then guarantee the continuity of overlarge-diameter soil pressure balance shield machine driving to reduce the influence that driving pauses surrounding environment is caused, and the employed equipment of this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method and system are full-fledged technology; Further combination improves the casting efficient of this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method, and the excavation operation of shield structure can be carried out smoothly.
This overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method has the following advantages:
1. simple to operate, reliability is high, fault rate is low and maintenance convenient.
2. muck haulage continuously, capacity abundance can be satisfied the excavation casting demand of overlarge-diameter soil pressure balance shield.
3. the synchronous extending level conveyor of connecting bolt construction through the circular tunnel section of jurisdiction in length and breadth to support; Strengthen the coupling stiffness of synchronous extending level conveyor; Do not take the passage that is used for structure construction synchronously and transport of materials in the circular tunnel again; Make the utilization in space better, and can be beneficial to the carrying out of construction with distribution.
4. according to working condition and place size, the collection heatable adobe sleeping platform of setting and the native storehouse of aerial collection can store the dregs of a constant volume, can tackle cubic metre of earth delay that car outward transport link causes.
5. this overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method equipment and the system that are adopted can all domesticize, and then reduce construction cost.
6. can be adaptable across metro shield, large-scale or ultra-large type earth pressure balanced shield, EPBS method tunnel is so applicability is good.
Claims (6)
1. overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method, and be used for construction of tunnel and get rid of the dregs under the cutting of shield structure, it is characterized in that the method includes the steps of:
Level in the tunnel is transported, and utilizes the connecting bolt of circular tunnel section of jurisdiction in the tunnel, to set up synchronous extending level conveyor, is transported in the collection heatable adobe sleeping platform of active well through synchronous extending level conveyor by the dregs under the cutting of shield structure;
Vertically transporting in the active well utilizes vertical grab bucket will collect the aerial collection Tu Cang of dregs grasping operation to the near floor level in the heatable adobe sleeping platform;
Aerial collection Tu Cang vertically transports, dregs aloft collect in native the storehouse in stir through the flat spin machine after, valve and the control of opening drain hole place, bottom, the native storehouse of the aerial collection speed of being unearthed, dregs receives gravity and falls in cubic metre of earth car of below; And
The level on ground is transported, and then closes the valve of drain hole after cubic metre of earth car is fully loaded, and fully loaded earthwork car is just extensible, and next earthwork car continues in place and preparation is loaded.
2. overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method according to claim 1 is characterized in that: this synchronous extending level conveyor horizontally set is carrying roller slidably, makes synchronous extending level conveyor be adapted to tunnel trend and adjusts.
3. overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method according to claim 2; It is characterized in that: this synchronous extending level conveyor includes extension apparatus in interior host apparatus of well and the tunnel; An end of host apparatus is positioned at the collection heatable adobe sleeping platform top of active well in the well, and an end of extension apparatus is positioned at the soil outlet below of shield machine in the tunnel, and the stent length of host apparatus immobilizes in the well; And with hydraulic pressure server controls storage device of the belt; Belt is advanced and elongation automatically with the shield structure, and when the shield structure advanced the end segment assembly, inwall suspension welding conveyor extended support in the tunnel.
4. overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method according to claim 3; It is characterized in that: this synchronous extending level conveyor still includes clearing apparatus; Clearing apparatus includes polyurethane material brush and steel plate, and cooperates spray and sewerage treatment module to carry out cleaning work.
5. overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method according to claim 4; It is characterized in that: in the step that the level in active well is transported; But be the operation of controlling synchronous extending level conveyor with program logic controller, but and the control system compatible of this program logic controller and shield structure, and camera and urgent start-stop switch are installed at interval; The shooting signal of camera is sent to shield structure operating room and ground monitoring chamber, to realize Long-distance Control.
6. according to each described overlarge-diameter soil pressure balance shield rapid and continuous excavation constructing method of claim 1 to 5; It is characterized in that: collect Tu Cang in the air and include four layers; First floor is parked a cubic metre of earth car, and the side plate of the second layer is to do the slope with steel plate, and the flat spin machine is set the dregs in the native storehouse of aerial collection is stirred; Cooperate base plate drain hole place that hydraulically operated gate is installed; The unearthed speed of control dregs and dregs unloaded is put to earthwork car, with the steel concrete enclosing, forms the aggregate bin that ground stores dregs around the 3rd layer; The 4th layer of setting be across purlin, active well collection heatable adobe sleeping platform top car grab bucket beam and the grab bucket of purlin car, and the car collection heatable adobe sleeping platform of grabbing bucket in active well in purlin is grabbed soil back handling to collecting in the native storehouse in the air.
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| CN2009102006976A CN101761343B (en) | 2009-12-24 | 2009-12-24 | Rapid and continuous excavation constructing method for overlarge-diameter soil pressure balance shield |
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| CN2009102006976A CN101761343B (en) | 2009-12-24 | 2009-12-24 | Rapid and continuous excavation constructing method for overlarge-diameter soil pressure balance shield |
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| CN101761343B true CN101761343B (en) | 2012-04-18 |
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| CN103899321B (en) * | 2014-04-23 | 2016-04-13 | 上海隧道工程有限公司 | The legal rectangular top pipe method for tunnel construction of top drawknot |
| CN104265313A (en) * | 2014-09-25 | 2015-01-07 | 无锡市翱宇特新科技发展有限公司 | Soil agitating structure of shield |
| CN105569671A (en) * | 2016-02-02 | 2016-05-11 | 中铁十九局集团轨道交通工程有限公司 | System and method for conveying residual soil in T-shaped underground excavation tunnel shield construction |
| CN106089230A (en) * | 2016-07-23 | 2016-11-09 | 车新宁 | The deslagging device of a kind of subway work and method thereof |
| CN106089231A (en) * | 2016-07-23 | 2016-11-09 | 车新宁 | The device slagged tap continuously for subway work and the slag tapping method using this device |
| CN106368715B (en) * | 2016-08-30 | 2018-09-21 | 中国水利水电第三工程局有限公司 | A kind of slag tapping method constructed during double-shielded TBM assembling |
| CN107642359A (en) * | 2017-09-26 | 2018-01-30 | 中铁隧道集团二处有限公司 | The attached wind booth vertical shaft section in subway station excavates slag tap structure and construction method |
| CN108915716B (en) * | 2018-07-16 | 2023-12-22 | 中交第二航务工程局有限公司 | Slag discharging equipment for dual-mode shield tunneling machine and using method thereof |
| CN110905532B (en) * | 2019-11-11 | 2024-06-11 | 中交第四航务工程局有限公司 | Shield screw machine with blowout prevention device |
| CN112627833A (en) * | 2020-12-17 | 2021-04-09 | 中铁山河工程装备股份有限公司 | Intelligent material conveying system for shield construction |
| CN116838364B (en) * | 2023-08-30 | 2024-01-23 | 中交第一航务工程局有限公司 | Soil pressure balance type pipe jacking pipe inner earth relay type dumping method and conveying device |
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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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