CN104033157A - Movable reaction equipment for shield launching shaft - Google Patents
Movable reaction equipment for shield launching shaft Download PDFInfo
- Publication number
- CN104033157A CN104033157A CN201410254040.9A CN201410254040A CN104033157A CN 104033157 A CN104033157 A CN 104033157A CN 201410254040 A CN201410254040 A CN 201410254040A CN 104033157 A CN104033157 A CN 104033157A
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- girder
- launching shaft
- launching
- horizontal support
- shield
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Abstract
Movable reaction equipment for a shield launching shaft comprises a girder provided with a rectangular frame, wherein the girder is perpendicularly placed on a track of a launching bracket in the shield launching shaft, and the front side of the girder is connected with a reference steel ring through welding, the back side of the girder is connected with a flange at the front end of a horizontal support tube, a flange at the back end of the horizontal support tube is closely attached to a pushing back wall of the shield launching shaft, the horizontal support tube is formed by flanged connection of one section of steel tube or at least two sections of steel tubes, and the length of each steel tube is smaller than the travel of a shield machine jack; and the front side of an embedded support piece on a bottom plate of the shield launching shaft is in threaded connection with the tail of an anti-reverse jack. The equipment is low in construction cost, simple and convenient to construct, high in construction efficiency, short in construction period and low in risk when being used for performing launching construction of the shield launching shaft.
Description
Technical field
The present invention relates to the packaged type counterforce device in a kind of launching shaft
Background technology
Method for tunnel construction as a kind of advanced person, " shield construction " has the advantages such as mechanical automation degree is high, speed of application is fast, ground disturbance is little, do not disturb road traffic, ground surface environment impact is little, in China's construction of tunnel field, obtained at present using widely, shared proportion will be increasing in China's field of traffic for later shield tunnel.
Adopting shield construction to build the work that first will carry out in tunnel is shield launching construction, if shield launching construction is not to carry out in AT STATION, conventionally the shield launching vertical shaft of need to first constructing, and then shield machine is hung in and in the vertical shaft that starts, carries out shield launching construction.While advancing on the track of the bracket that starts of shield machine in the vertical shaft that starts, can not carry out tuning, and shield launching construction is carried out often in the vertical shaft soil layer that performed grouting and reinforcing or rotary churning pile reinforcing, the resistance of driving is very large, therefore shield launching construction is heavy difficult point and the risk point in shield construction tunnel all the time, be a very important link in shield construction, be often related to the success or failure of whole shield tunnel construction.
While carrying out at present shield launching construction in shield launching vertical shaft, traditional method is that the propelling of starting that the fixed reaction frame of employing is shield machine provides counter-force, the support section of fixed reaction frame adopts one group to tilt to support often, on the girder back side of reaction frame and the mixed earth base plate of launching shaft, between built-in fitting, welds one group of stressed steel pipe tilting.The operation of its shield launching construction is: when the shield machine starting on bracket is often pushed ahead a cell distance, the hydraulic jack of shield machine is retracted, the negative endless tube sheet of the new assembled ring in space of vacating on the bracket that starts; The rear end face of the negative endless tube sheet group of series connection is close to reaction frame, and front end face is close to the jack of shield machine.Then the jack of shield machine stretches out, and by negative endless tube sheet group and reaction frame, provides opposition that shield machine is pushed ahead.So circulation, until shield machine body enters soil layer, required thrust is less than the frictional force between section of jurisdiction and soil layer, completes the shield launching construction in vertical shaft.Remove subsequently interim negative endless tube sheet, reaction frame and tilt to support.
There is following drawback in the shield launching construction method in above vertical shaft: (1), need to make, hang in and install the negative endless tube sheet of some, after construction finishes, need again negative endless tube sheet to remove and hang out outside starting well, construction cost is large, operation is many, have a big risk, and has increased the duration.The consolidation service of negative endless tube sheet simultaneously also needs a relatively large starting well headroom, has also strengthened construction cost, duration.(2), the stressed steel pipe of fixed reaction frame support section need to be welded to connect and weld disconnected dismounting, troublesome poeration, has also increased construction cost and duration.(3) the inclination supporting way of reaction frame, the support force of requirement is larger, high to the caliber of stressed steel pipe and welding requirements, has also strengthened construction cost, difficulty of construction.
Summary of the invention
The object of this invention is to provide a kind of packaged type counter-force equipment for launching shaft, adopt this equipment in the launching shaft construction of starting, its construction cost is low, construction is simple, convenient, and efficiency of construction is high, the construction period is short, construction risk is little.
The present invention realizes its technical scheme of adopting of invention: for the packaged type counter-force equipment of launching shaft, the girder that comprises rectangular frame, girder is vertically positioned on the track of the bracket that starts in launching shaft, the benchmark steel loop that girder front is welded to connect, it is characterized in that: the described girder back side is connected with the flange of horizontal support pipe front end, the flange of horizontal support pipe rear end is close to the parados that pushes away of launching shaft, the steel pipe that described horizontal support pipe is single-unit or the above steel pipe of two joints connect and compose by flange, the length of described steel pipe is less than the stroke of the jack of shield machine, the front of the pre-buried support member on launching shaft base plate is connected with the tailing screw flight of anti-retrogression jack.
The course of work of the present invention and principle are:
Prepare: girder and benchmark steel loop thereof are hung and are positioned on the track starting on bracket in launching shaft under vertical, the steel pipe flange of single-unit is connected to the girder back side, the flange of steel pipe rear end is close to the parados that pushes away of launching shaft, and the steel pipe of single-unit now forms horizontal support pipe.
Shield driving:
By the jack of shield machine pushing tow benchmark steel loop backward, jacking force acts on pushing away on parados of launching shaft via girder, horizontal support pipe, pushes away parados and produces reaction force and promote shield machine and push ahead.
After pushing ahead a cell distance of the steel pipe length that is slightly larger than single-unit, shield machine suspends propelling.The front of the pre-buried support member on launching shaft base plate is threaded with the afterbody of anti-retrogression jack; What regulate anti-retrogression jack ejects length to withstand shield machine afterbody, prevents that shield machine from falling back because of the native cabin pressure of excavation face.
Subsequently, girder and benchmark steel loop thereof, horizontal support pipe are moved forward to a cell distance, then connect the new steel pipe of a joint in the rear end flanges of horizontal support pipe, form the horizontal support pipe that plurality of sections of steel pipes forms and also remove anti-retrogression jack.
Repeat above shield driving operation, complete the shield driving of next cell distance.So circulation, until shield machine body enters soil layer, and required thrust is while being less than the frictional force between section of jurisdiction and soil layer, completes the shield driving of the construction of starting.Finally, remove steel pipe and be connected with the flange between girder and steel pipe, being threaded of fall back jack and pre-buried support member, and hang out outside well, complete the construction of starting in shield launching vertical shaft.
Compared with prior art, the beneficial effect of tool of the present invention is:
One, the horizontal support pipe belt that the present invention adopts simple flange section by section to connect lengthening replaces traditional assembled negative endless tube sheet piecewise as the structure of transmitting shield machine thrust, do not need to make and install and bear endless tube sheet, greatly reduced the Clearance Requirement of construction operation in launching shaft, dwindled the scale of launching shaft, can cost saving.
Two, by the horizontal support pipe belt that flange connects section by section simply and easily, replaced the making of heavy negative endless tube sheet, the working procedure that starts of the series of complexes such as assembled, dismounting, lifting, both improved engineering efficiency, shortened the construction period, reduced construction cost, also the security risk of having avoided heavy negative endless tube sheet vertical lifting hauling operation to bring, construction risk is little.
Three, between steel pipe and girder, steel pipe and anti-retrogression jack be and be threaded with being connected of pre-buried support member, installation and removal are convenient; Except pre-buried support member, all parts all can Reusability; Avoided being welded to connect and welding disconnected dismounting of the stressed steel pipe of existing support, steel pipe can not reusable defect.Also construction cost and duration have obviously been reduced.
Four, adopt horizontal support stress form to replace the inclination of conventional method to support stress form, directly shield structure propulsive thrust level is passed to pushing away on parados of launching shaft, pushing away parados and shield machine is positive stressed, there is no resolution of forces, effectively and reasonably stressed, caliber requirement to steel pipe is low, also makes whole equipment more stable, reliable.
Above-mentioned horizontal support pipe is 32-12 root.
Like this, its support is more firm, reliable.
The column lower end of above-mentioned girder is provided with the steamboat with the Orbit Matching of the bracket that starts.
Like this, at shield machine, complete after the propelling of a cell distance, when whole equipment need to move, mobile more convenient.
The front of above-mentioned benchmark steel loop is provided with the very heavy inverted draw cut mating with the support boots of shield machine jack.
Like this, the supporting and location between shield machine jack and benchmark steel loop is more firm.
Above-mentioned horizontal support pipe is fastened and connected by fastener and the steady rest being placed on launching shaft base plate.
Like this, can the improve the standard horizontal and vertical stability of stay pipe.
The above-mentioned parados that pushes away adopts the mixed earth of reinforcing bar to strengthen structure.
Like this, the jacking force in shield machine progradation acts on while pushing away on parados via girder, horizontal support pipe, can guarantee to push away the body of wall of parados and the stability of the vertical shaft soil layer that starts.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention at the shield driving that completes second cell distance, not yet connect the side-looking structural representation of the 3rd joint during steel pipe.
Fig. 2 is that the embodiment of the present invention has been removed anti-retrogression jack, the side-looking structural representation while just having started the shield driving of the 3rd cell distance.
Fig. 3 is that the master of girder and benchmark steel loop looks (front) structural representation.
The specific embodiment
Fig. 1-3 illustrate, a kind of specific embodiment of the present invention is, packaged type counter-force equipment for launching shaft, the girder 1 that comprises rectangular frame, girder 1 is vertically positioned on the track 61 of the bracket that starts in launching shaft 6, the benchmark steel loop 2 that girder 1 front is welded to connect, it is characterized in that: described girder 1 back side is connected with the flange 32 of horizontal support pipe 3 front ends, what the flange 32 of horizontal support pipe 3 rear ends was close to launching shaft pushes away parados 62, described horizontal support pipe 3 connects and composes by flange 32 for the steel pipe 31 of single-unit or two saves above steel pipe 31, the length of described steel pipe 31 is less than the stroke of the jack 71 of shield machine 7, the front of the pre-buried support member 64 on launching shaft 6 base plates is connected with the tailing screw flight of anti-retrogression jack 8.
This routine horizontal support pipe 3 is 32-12 root.Column 11 lower ends are provided with the steamboat 12 mating with the track 61 of the bracket that starts.The front of benchmark steel loop 2 is provided with the very heavy inverted draw cut 21 that the support boots with the jack 71 of shield machine 7 match.Horizontal support pipe 3 is fastened and connected by fastener and the steady rest 63 being placed on launching shaft 6 base plates.
Obviously, the front in the present invention, front end refer to the one side (end) of shield machine direction of propulsion, and the back side, rear end refer to the one side (end) that deviates from shield machine direction of propulsion.
Claims (5)
1. the packaged type counter-force equipment for launching shaft, the girder (1) that comprises rectangular frame, girder (1) is vertically positioned on the track (61) of the bracket that starts in launching shaft (6), the benchmark steel loop (2) that girder (1) front is welded to connect, it is characterized in that: described girder (1) back side is connected with the flange (32) of horizontal support pipe (3) front end, what the flange (32) of horizontal support pipe (3) rear end was close to launching shaft pushes away parados (62), described horizontal support pipe (3) connects and composes by flange (32) for the steel pipe of single-unit (31) or two saves above steel pipe (31), the length of described steel pipe (31) is less than the stroke of the jack (71) of shield machine (7), the front of the pre-buried support member (64) on launching shaft (6) base plate is connected with the tailing screw flight of anti-retrogression jack (8).
2. the packaged type counter-force equipment for launching shaft as claimed in claim 1, is characterized in that, described horizontal support pipe (3) is 32-12 root.
3. the packaged type counter-force equipment for launching shaft as claimed in claim 1, is characterized in that, column (11) lower end of described girder (1) is provided with the steamboat (12) mating with the track (61) of the bracket that starts.
4. the packaged type counter-force equipment for launching shaft as claimed in claim 1, is characterized in that: the front of described benchmark steel loop (2) is provided with the very heavy inverted draw cut (21) that the support boots with the jack (71) of shield machine (7) match.
5. the packaged type counter-force equipment for launching shaft as claimed in claim 1, is characterized in that: described horizontal support pipe (3) is fastened and connected by fastener and the steady rest (63) being placed on launching shaft (6) base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254040.9A CN104033157B (en) | 2014-06-10 | 2014-06-10 | For the packaged type counter-force equipment of launching shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254040.9A CN104033157B (en) | 2014-06-10 | 2014-06-10 | For the packaged type counter-force equipment of launching shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033157A true CN104033157A (en) | 2014-09-10 |
| CN104033157B CN104033157B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410254040.9A Expired - Fee Related CN104033157B (en) | 2014-06-10 | 2014-06-10 | For the packaged type counter-force equipment of launching shaft |
Country Status (1)
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| CN (1) | CN104033157B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695967A (en) * | 2015-01-21 | 2015-06-10 | 广东华隧建设股份有限公司 | Ring frame beam device for shield launching and mounting method of ring frame beam device |
| CN105781590A (en) * | 2016-02-27 | 2016-07-20 | 中交公局第三工程有限公司 | Technology for disassembling negative rings of TBM (tunnel boring machine) arrival hole |
| CN106437730A (en) * | 2016-10-09 | 2017-02-22 | 上海市基础工程集团有限公司 | Inverse pulling device of shield tunneling machine |
| CN107339504A (en) * | 2017-07-12 | 2017-11-10 | 郑州市市政工程总公司 | Interior spelling formula jacking pipe construction process |
| CN108019212A (en) * | 2017-12-21 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of device for preventing from twisting during shield launching |
| CN108049882A (en) * | 2018-01-22 | 2018-05-18 | 中交第二航务工程局有限公司 | Extra small starting well shield separate launching push construction method and its thrustor |
| CN108756917A (en) * | 2018-07-19 | 2018-11-06 | 中国铁建重工集团有限公司 | A kind of no pipe sheet assembling device and shield machine |
| CN110500106A (en) * | 2019-10-09 | 2019-11-26 | 北京市市政四建设工程有限责任公司 | A kind of shield launching reaction frame component |
| CN110513118A (en) * | 2019-10-09 | 2019-11-29 | 北京市市政四建设工程有限责任公司 | A kind of shield originates structure without negative ring and originates technique |
| CN110566216A (en) * | 2019-10-09 | 2019-12-13 | 北京市市政四建设工程有限责任公司 | steel ring structure for shield launching |
| CN111236954A (en) * | 2020-02-21 | 2020-06-05 | 中建八局轨道交通建设有限公司 | Sand box counter-force device for shield initiation in tunnel and negative ring pipe piece dismantling method |
| CN113970290A (en) * | 2021-09-23 | 2022-01-25 | 上海市基础工程集团有限公司 | Tunnel detection device for shield construction |
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| JPH08135366A (en) * | 1993-12-31 | 1996-05-28 | Maeda Corp | Propelling method of shield |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695967A (en) * | 2015-01-21 | 2015-06-10 | 广东华隧建设股份有限公司 | Ring frame beam device for shield launching and mounting method of ring frame beam device |
| CN105781590A (en) * | 2016-02-27 | 2016-07-20 | 中交公局第三工程有限公司 | Technology for disassembling negative rings of TBM (tunnel boring machine) arrival hole |
| CN105781590B (en) * | 2016-02-27 | 2018-05-04 | 中交一公局第三工程有限公司 | TBM bears ring with reception hole and removes technique |
| CN106437730A (en) * | 2016-10-09 | 2017-02-22 | 上海市基础工程集团有限公司 | Inverse pulling device of shield tunneling machine |
| CN107339504A (en) * | 2017-07-12 | 2017-11-10 | 郑州市市政工程总公司 | Interior spelling formula jacking pipe construction process |
| CN108019212A (en) * | 2017-12-21 | 2018-05-11 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of device for preventing from twisting during shield launching |
| CN108049882A (en) * | 2018-01-22 | 2018-05-18 | 中交第二航务工程局有限公司 | Extra small starting well shield separate launching push construction method and its thrustor |
| CN108049882B (en) * | 2018-01-22 | 2023-06-27 | 中交第二航务工程局有限公司 | Shield split starting pushing construction method and pushing device for ultra-small starting well |
| CN108756917B (en) * | 2018-07-19 | 2020-05-22 | 中国铁建重工集团股份有限公司 | Non-duct-piece assembling device and shield tunneling machine |
| CN108756917A (en) * | 2018-07-19 | 2018-11-06 | 中国铁建重工集团有限公司 | A kind of no pipe sheet assembling device and shield machine |
| CN110500106A (en) * | 2019-10-09 | 2019-11-26 | 北京市市政四建设工程有限责任公司 | A kind of shield launching reaction frame component |
| CN110566216A (en) * | 2019-10-09 | 2019-12-13 | 北京市市政四建设工程有限责任公司 | steel ring structure for shield launching |
| CN110513118A (en) * | 2019-10-09 | 2019-11-29 | 北京市市政四建设工程有限责任公司 | A kind of shield originates structure without negative ring and originates technique |
| CN111236954A (en) * | 2020-02-21 | 2020-06-05 | 中建八局轨道交通建设有限公司 | Sand box counter-force device for shield initiation in tunnel and negative ring pipe piece dismantling method |
| CN111236954B (en) * | 2020-02-21 | 2021-08-17 | 中建八局轨道交通建设有限公司 | Sand box counter-force device for shield initiation in tunnel and negative ring pipe piece dismantling method |
| CN113970290A (en) * | 2021-09-23 | 2022-01-25 | 上海市基础工程集团有限公司 | Tunnel detection device for shield construction |
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| CN104033157B (en) | 2016-04-20 |
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