CN104314572A - Construction method for tunnel constructed by two semi-rectangular pipe sections with outer chamfer angles - Google Patents
Construction method for tunnel constructed by two semi-rectangular pipe sections with outer chamfer angles Download PDFInfo
- Publication number
- CN104314572A CN104314572A CN201410503267.2A CN201410503267A CN104314572A CN 104314572 A CN104314572 A CN 104314572A CN 201410503267 A CN201410503267 A CN 201410503267A CN 104314572 A CN104314572 A CN 104314572A
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- Prior art keywords
- tube coupling
- shield
- rectangle
- construction
- oil cylinder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0635—Tail sealing means, e.g. used as end shuttering
Abstract
The invention discloses a construction method for a tunnel constructed by two semi-rectangular pipe sections with outer chamfer angles. The construction method comprises a pipe jacking construction stage and a shield construction stage which are sequentially performed; when the pipe jacking construction is performed until the maximal trust borne by rectangular pipe sections or working pits is achieved or the design requirement of the distances between the rectangular pipe sections and a tunnel opening is met, pipe jacking construction is stopped and the shield construction stage is started; when the shield construction stage is performed on the tail end of the tunnel, shield tail seal rings are arranged at the outer sides of the rectangular pipe sections and are V-shaped or U-shaped seal rings with long and short lips. The construction method for the tunnel constructed by the two semi-rectangular pipe sections with the outer chamfer angles is simple and easy in operation, high in mechanization degree and high in efficiency, is high in section utilization ratio in comparison with round shield construction, is long in pushing distance in comparison with rectangular pipe jacking construction, has favorable practicability and meets the use requirements. The used shield tail seal rings are unique in design and have favorable seal performance, so that leakage can be prevented.
Description
Technical field
The invention belongs to tunneling technique field, be specifically related to a kind of construction method of the tunnel constructed by outside chamfering two halves rectangle tube coupling.
Background technology
At present, be circular shield in the overwhelming majority carrying out constructing.The quantity of its every endless tube sheet is more, there is sealing place many, easily produces leakage.Have is exactly that circular shield section does not have rectangular cross section utilization rate high again.In addition, have many rectangular top pipes at present in construction, it can improve scetion utilization, but owing to being subject to the restriction of pipe jacking method self, the distance of jacking all can not be oversize, and therefore these two kinds of construction parties are sent out and all can not be met user demand completely.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, the object of the present invention is to provide a kind of construction method of the tunnel constructed by outside chamfering two halves rectangle tube coupling, has the features such as scetion utilization is high, advance distance is long.The tail sealing circle that the construction method that another object of the present invention is to provide a kind of tunnel constructed by outside chamfering two halves rectangle tube coupling uses, has the features such as reasonable in design, good seal performance.
Technical scheme: in order to realize foregoing invention object, the technical solution used in the present invention is:
The construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling, comprises the jacking construction and two stages of shield-tunneling construction that successively carry out;
The described jacking construction stage is: the spoir of earth pressure balance development machine in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion, then is discharged to Tu Douzhong by native sand pump through casting pipe by conveying worm; The spreading of casting pipe, the connection thimble connector of elbow connect; Casting pipe part in tube coupling is provided with the stent support of band roller at interval of certain distance; Console and Electric Appliance Cabinet are located in shield shell stage casing; Be provided with shield driving oil cylinder in shield shell back segment, entirely stretch all the time within the jacking construction stage; Be provided with hole sealing collar by the rectangle tube coupling periphery of jacking, rectangle tube coupling is that assembled good entirety later hangs in working pit in advance; There is working pit at rectangle tube coupling rear, and in working pit, establish foundation ditch guide rail, main top oil cylinder, main top cylinder rack, rear backup plate and main top hydraulic power unit, filling and injecting slurry device is located on working pit, with more piece rectangle tube coupling pad at oil cylinder rear portion, main top;
When jacking construction is advanced to maximum thrust that rectangle tube coupling or working pit can bear and rectangle tube coupling reaches designing requirement from hole, jacking construction is stopped to be transformed into the shield-tunneling construction stage;
In the described shield-tunneling construction stage, the spoir of earth pressure balance development machine in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion by conveying worm, then is discharged in muck haulage trolley by native sand pump through casting pipe; After a rectangle tube coupling has pushed away, muck haulage trolley has been transported in working pit by battery truck and has been sling; Tube coupling to be held carried by lower tube coupling transport vehicle; Upper tube coupling to be installed carried by upper tube coupling transport vehicle; Two tube coupling transport vehicles are dragged by battery truck; Battery truck is installed synchronous grouting assembly apparatus; Tube coupling is installed after lower tube coupling is first installed.
The described shield-tunneling construction stage comprises: first remove rotation, installing space that casting pipe reserves tube coupling when the shield-tunneling construction stage starts; Tube coupling to be loaded is being shifted onto on job platform, lower tube coupling is being installed and guarantees that the notch installing sealing ring reveals forward, about two tube coupling weather strip glue are bonded in seal groove; Installing tube coupling; First top shield structure oil cylinder is stretched out after first tube coupling end-face seal ring glue is in seal groove in shield structure back casing, bounce back after being pushed against tube coupling end face bottom shield structure oil cylinder more again; When sealing ring glue being stretched out bottom shield structure oil cylinder in the sealing groove of lower tube coupling end face again after having had a fixed gap, be pushed against lower tube coupling end face, the rectangular shield then carrying out next ring advances again.
When the shield-tunneling construction stage leads Tunnel Endpoint, establish tail sealing circle outside rectangle tube coupling, described tail sealing circle is be provided with the V-type on length lip limit or U-shaped sealing ring.
The tail sealing circle in the tunnel constructed by outside chamfering two halves rectangle tube coupling, described tail sealing circle is be provided with the V-type on length lip limit or U-shaped sealing ring.
The long lip limit of described tail sealing circle and rectangle tube coupling touch, and brachycheilia limit and ground body of wall touch.
Described tail sealing circle has 4 roads, and side-by-side parallel is spaced to be located between a joint rectangle tube coupling and ground body of wall, when in its compressed state, guarantees to have at least one tail sealing to enclose sealing function in any position.
Beneficial effect: compared with prior art, the construction party in the tunnel constructed by outside chamfering two halves rectangle tube coupling of the present invention is sent out, simple easily operation, and mechanization degree is high, and efficiency is high, and compared with constructing with circular shield, scetion utilization is high; Compared with constructing with rectangular top pipe, advance distance is long; There is good practicality, can user demand be met.The tail sealing circle design used is unique, has good sealing performance, avoids producing and leaks.
Accompanying drawing explanation
Fig. 1 is the structural representation in the tunnel constructed by outside chamfering two halves rectangle tube coupling;
Fig. 2 is the vertical direction sectional view in the tunnel constructed by outside chamfering two halves rectangle tube coupling;
Fig. 3 is the horizontal direction sectional view in the tunnel constructed by outside chamfering two halves rectangle tube coupling;
Fig. 4 is jacking construction stage schematic diagram;
Fig. 5-16 is each stage schematic diagrames of shield-tunneling construction;
Figure 17 is tail sealing coil structures schematic diagram;
Figure 18 is the enlarged drawing of tail sealing circle.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated.
As shown in Figure 1, a kind of tunnel, is made up of the two halves rectangle tube coupling of outside chamfering, and the one in two halves rectangle tube coupling is coupled to a ring rectangle tube coupling by little upper tube coupling 1 and large lower tube coupling 2, and another kind goes up greatly tube coupling 3 and little lower tube coupling 4 is coupled to a ring rectangle tube coupling; The first chamfering 5 and the second chamfering 6 is had outside the both sides of each ring rectangle tube coupling.Be bound up by the rectangle tube coupling of these two kinds of alternate layouts of tube coupling many, become a tunnel, tunnel top is arch, and adjacent two ring rectangular tube internodes establish sealing ring 15.
As shown in Figures 2 and 3, adjacent little upper tube coupling 1 has packing ring and nut with large upper tube coupling 3 by upper tube coupling double end coupling bolt 7(is supporting) be connected, upper tube coupling double end coupling bolt 7 is located at tube coupling bolt and closes in 8.Adjacent large lower tube coupling 2 has packing ring and nut with little lower tube coupling 4 by lower tube coupling double end coupling bolt 10(is supporting) be connected, lower tube coupling double end coupling bolt 10 is located at lower tube coupling bolt and closes in 11.The little upper tube coupling 1 of same rectangle tube coupling all has packing ring and nut by upper and lower tube coupling coupling bolt 12(is supporting with large lower tube coupling 2 or large upper tube coupling 3 with little lower tube coupling 4) be connected, upper and lower tube coupling coupling bolt 12 is located at upper and lower tube coupling bolt and closes in 13.On little tube coupling 1 and large on tube coupling 3 is equipped with tube coupling injected hole 16, large lower tube coupling 2 with little lower tube coupling 4 are equipped with lower tube coupling injected hole 14, large lower tube coupling 2, large on the both sides of tube coupling 3 be equipped with injected hole 9.On little between tube coupling 1 with large lower tube coupling 2, large on be provided with between tube coupling 3 with little lower tube coupling 4 and be connected with weather strip 18, large lower tube coupling 2 is provided with lower tube coupling with little lower tube coupling 4 and connects preformed hole 17, and little upper tube coupling 1 is provided with tube coupling with large upper tube coupling 3 and connects preformed hole 19.
This constructing tunnel process is divided into two stages: first stage adopts jacking construction, and second stage adopts shield-tunneling construction.In jacking construction phase process, no matter advance how long distance, as long as the limit that thrust reaches setting just converts shield-tunneling construction to immediately.
In the jacking construction stage, as shown in Figure 4, the spoir of earth pressure balance development machine 20 in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion 23 by conveying worm 21, then is discharged in soil bucket 34 through casting pipe 25 by native sand pump 22.The spreading of casting pipe, the connection thimble connector 28 of elbow connect.The casting pipe support 29 that part is provided with band roller at interval of certain distance in tube coupling supports.Console and Electric Appliance Cabinet are located in shield shell stage casing 24.Be provided with shield driving oil cylinder 26 in shield shell back segment 27, it entirely stretches all the time within the jacking construction stage.Be provided with hole sealing collar 30 by rectangle tube coupling 31 periphery of jacking, rectangle tube coupling 31 is that the assembled good entirety later of a ring ring hangs in working pit on the ground.If main top oil cylinder stroke is long, then can once hangs in a few ring, then advance.There is working pit 40 at rectangle tube coupling 31 rear, and in working pit 40, establish foundation ditch guide rail 32, main top oil cylinder 33, main top cylinder rack 35, rear backup plate 36 and main top hydraulic power unit 39, filling and injecting slurry device 38 is located on working pit 40.Because working pit 40 is that shield-tunneling construction and jacking construction are public, when it is for just seeming oversize during push pipe, must pad at oil cylinder rear portion, main top with more piece rectangle tube coupling 37.Rectangle tube coupling now only plays cushion block effect, must remove, so need not install sealing ring when being transformed into shield-tunneling construction.
The construction in jacking construction stage is compared with the shield-tunneling construction stage, and construction speed will be spent many soon, but the distance that it advances can not be oversize.When jacking construction is advanced to maximum thrust that rectangle tube coupling or working pit can bear and rectangle tube coupling reaches designing requirement from hole, must jacking construction be stopped and it is transformed into the shield-tunneling construction stage.
In the shield-tunneling construction stage, the spoir of earth pressure balance development machine 20 in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion 23 by conveying worm 21, then is discharged in muck haulage trolley through casting pipe 25 by native sand pump 22.After a ring rectangle tube coupling has pushed away, muck haulage trolley has been transported in working pit by battery truck and has been sling.Tube coupling to be held carried by lower tube coupling transport vehicle.Upper tube coupling to be installed carried by upper tube coupling transport vehicle.Two tube coupling transport vehicles are dragged by battery truck.Battery truck is installed synchronous grouting assembly apparatus.As shown in Figure 5, when the jacking construction stage terminate the shield-tunneling construction stage start time first two gate valves of shield shell back segment 27 In-pit dumping pipe 25 are closed, unclamp the thimble connector between two gate valves, these two sections of casting pipes respectively to about both direction turnback, reserve the rotation of tube coupling, installing space.Tube coupling to be loaded is shifted onto on job platform 41, as shown in Figure 6.Extract the bearing pin between upper and lower tube coupling transport vehicle, slightly move after upper tube coupling, stretch out pulley two oil cylinder 53 being located at wire rope pulley 54 both sides and arrive suitable position, stretch out wire rope oil cylinder 52, wire rope, hoisting sling and lower tube coupling suspender are linked together, as shown in Figure 7 simultaneously.Then, retraction wire rope oil cylinder is sling lower tube coupling and to be bounced back after certain altitude while bottom shield structure oil cylinder 26 with manually lower tube coupling transport vehicle being shifted onto spacing place forward.Because job platform 41 and track are bound up with the shield structure oil cylinder of bottom, so it also moves together with the shield structure oil cylinder of bottom, thus leave the space of installing lower tube coupling, as shown in Figure 8, now, top shield structure oil cylinder can not bounce back, otherwise development machine and shield structure housing etc. can retreat.With manually lower tube coupling being turned 90 ° by the direction of specifying, the notch installing sealing ring must reveal forward.Stretching out wire rope oil cylinder again allows lower tube coupling fall shield shell back segment bottom surface, as shown in Figure 9.Allow bottom shield structure oil cylinder stretch out at leisure lower tube coupling toward pusher, as shown in Figure 10.After shifting position onto, then with lower tube coupling double end coupling bolt, packing ring and nut, tube coupling under front and back is bound up.Meanwhile, about two tube coupling weather strip glue are bonded in seal groove, as shown in figure 11.So far, lower tube coupling is in place, next prepares to install tube coupling.First shield structure oil cylinder retraction in top is put in place, shifting suitable position onto with tube coupling on storage battery handlebar, as shown in figure 12.Then, the oil pump in startup on tube coupling, installs upper tube coupling after oil cylinder opens and be raised to certain altitude, with manually rotating upper tube coupling at leisure by the direction of specifying, while allow battery truck move forward and backward as required.Until upper tube coupling has turned 90 ° of later again opening go up tube coupling, have after certain interval δ between upper and lower tube coupling, as shown in figure 13.After allowing tube coupling and mounted upper tube coupling on this press close to battery truck again, upper tube coupling is fallen and rest on lower tube coupling.Allow tube coupling and mounted upper tube coupling on this upper tube coupling be fallen after pressing close to battery truck rest on lower tube coupling, finally upper and lower tube coupling transport vehicle is linked together, as shown in figure 14.Move working pit to the transport vehicle of tube coupling up and down of storage battery handlebar sky and tube coupling up and down is next time installed.First top shield structure oil cylinder is stretched out after first tube coupling end-face seal ring glue is in seal groove in shield structure back casing, bounce back after being pushed against tube coupling end face bottom shield structure oil cylinder more again.When again sealing ring glue being stretched out bottom shield structure oil cylinder in the sealing groove of lower tube coupling end face again after having had a fixed gap, be pushed against lower tube coupling end face, as shown in figure 15.Then the rectangular shield carrying out next ring advances, and the native sand pump of spoir pumps, and is discharged to muck haulage trolley by mud pipe, finally transports with battery truck, as shown in figure 16.Owing to having had chamfering in tube coupling two sides, side presents wavy, tail sealing ring again chamfering place sealing outside lost efficacy, so must design the tail sealing circle be suitable for mutually with it, as shown in FIG. 17 and 18, it is a kind of V sealing ring having length lip limit, four roads are provided with in the scope of a pipe joint pitch width degree, when can guarantee that no matter shield tail and tube coupling are in any relative position like this, have at least one sealing ring to work, there will not be the situation of seal failure.
Claims (6)
1. the construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling, is characterized in that, comprises the jacking construction and two stages of shield-tunneling construction that successively carry out;
The described jacking construction stage is: the spoir of earth pressure balance development machine in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion, then is discharged to Tu Douzhong by native sand pump through casting pipe by conveying worm; The spreading of casting pipe, the connection thimble connector of elbow connect; Casting pipe part in tube coupling is provided with the stent support of band roller at interval of certain distance; Console and Electric Appliance Cabinet are located in shield shell stage casing; Be provided with shield driving oil cylinder in shield shell back segment, entirely stretch all the time within the jacking construction stage; Be provided with hole sealing collar by the rectangle tube coupling periphery of jacking, rectangle tube coupling is that assembled good entirety later hangs in working pit in advance; There is working pit at rectangle tube coupling rear, and in working pit, establish foundation ditch guide rail, main top oil cylinder, main top cylinder rack, rear backup plate and main top hydraulic power unit, filling and injecting slurry device is located on working pit, with more piece rectangle tube coupling pad at oil cylinder rear portion, main top;
When jacking construction is advanced to maximum thrust that rectangle tube coupling or working pit can bear and rectangle tube coupling reaches designing requirement from hole, jacking construction is stopped to be transformed into the shield-tunneling construction stage;
In the described shield-tunneling construction stage, the spoir of earth pressure balance development machine in tunneling process, is discharged in the native sand pump be arranged in shield shell leading portion by conveying worm, then is discharged in muck haulage trolley by native sand pump through casting pipe; After a rectangle tube coupling has pushed away, muck haulage trolley has been transported in working pit by battery truck and has been sling; Tube coupling to be held carried by lower tube coupling transport vehicle; Upper tube coupling to be installed carried by upper tube coupling transport vehicle; Two tube coupling transport vehicles are dragged by battery truck; Battery truck is installed synchronous grouting assembly apparatus; Tube coupling is installed after lower tube coupling is first installed.
2. the construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling according to claim 1, it is characterized in that, the described shield-tunneling construction stage comprises: first remove rotation, installing space that casting pipe reserves tube coupling when the shield-tunneling construction stage starts; Tube coupling to be loaded is being shifted onto on job platform, lower tube coupling is being installed and guarantees that the notch installing sealing ring reveals forward, about two tube coupling weather strip glue are bonded in seal groove; Installing tube coupling; First top shield structure oil cylinder is stretched out after first tube coupling end-face seal ring glue is in seal groove in shield structure back casing, bounce back after being pushed against tube coupling end face bottom shield structure oil cylinder more again; When sealing ring glue being stretched out bottom shield structure oil cylinder in the sealing groove of lower tube coupling end face again after having had a fixed gap, be pushed against lower tube coupling end face, the rectangular shield then carrying out next ring advances again.
3. the construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling according to claim 1, it is characterized in that, when the shield-tunneling construction stage leads Tunnel Endpoint, establish tail sealing circle outside rectangle tube coupling, described tail sealing circle is be provided with the V-type on length lip limit or U-shaped sealing ring.
4. the tail sealing circle in the tunnel constructed by outside chamfering two halves rectangle tube coupling, is characterized in that, described tail sealing circle is be provided with the V-type on length lip limit or U-shaped sealing ring.
5. the tail sealing circle in the tunnel constructed by outside chamfering two halves rectangle tube coupling according to claim 4, it is characterized in that, the long lip limit of described tail sealing circle and rectangle tube coupling touch, and brachycheilia limit and ground body of wall touch.
6. the tail sealing circle in the tunnel constructed by outside chamfering two halves rectangle tube coupling according to claim 4, it is characterized in that, described tail sealing circle has 4 roads, side-by-side parallel is spaced to be located between a joint rectangle tube coupling and ground body of wall, when in its compressed state, guarantee to have at least one tail sealing to enclose sealing function in any position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410503267.2A CN104314572B (en) | 2014-09-17 | 2014-09-28 | A kind of construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2014104738024 | 2014-09-17 | ||
| CN201410473802 | 2014-09-17 | ||
| CN201410473802.4 | 2014-09-17 | ||
| CN201410503267.2A CN104314572B (en) | 2014-09-17 | 2014-09-28 | A kind of construction method in the tunnel constructed by outside chamfering two halves rectangle tube coupling |
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| CN104314572A true CN104314572A (en) | 2015-01-28 |
| CN104314572B CN104314572B (en) | 2016-08-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507910A (en) * | 2015-12-11 | 2016-04-20 | 山东万广建设工程有限公司 | Novel rectangular pipe joint and shield constructing and mounting method thereof |
| CN107387872A (en) * | 2017-06-08 | 2017-11-24 | 山东万广建设工程有限公司 | The tube coupling shield compatible apparatus of push pipe half and its coupling method |
| CN108361054A (en) * | 2018-01-22 | 2018-08-03 | 中蓝长化工程科技有限公司 | It is a kind of densification broken rock in roadway construction method |
| CN109162729A (en) * | 2018-10-19 | 2019-01-08 | 中铁隧道局集团有限公司 | Be open more pipe joint type large cross-section tunnels and method of construction, tube coupling connection structure and connection method more |
| CN111335919A (en) * | 2020-03-20 | 2020-06-26 | 重庆渝高科技产业(集团)股份有限公司 | Prefabricated pipe joint pushing method |
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| CN204186392U (en) * | 2014-09-17 | 2015-03-04 | 江苏广泓重工设备有限公司 | A kind of tail sealing circle of the tunnel constructed by outside chamfering two halves rectangle tube coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105507910A (en) * | 2015-12-11 | 2016-04-20 | 山东万广建设工程有限公司 | Novel rectangular pipe joint and shield constructing and mounting method thereof |
| CN107387872A (en) * | 2017-06-08 | 2017-11-24 | 山东万广建设工程有限公司 | The tube coupling shield compatible apparatus of push pipe half and its coupling method |
| CN107387872B (en) * | 2017-06-08 | 2019-11-12 | 山东万广建设工程有限公司 | - half tube coupling shield compatible apparatus of push pipe and its coupling method |
| CN108361054A (en) * | 2018-01-22 | 2018-08-03 | 中蓝长化工程科技有限公司 | It is a kind of densification broken rock in roadway construction method |
| CN108361054B (en) * | 2018-01-22 | 2020-04-07 | 中蓝长化工程科技有限公司 | Construction method for roadway in compact broken rock stratum |
| CN109162729A (en) * | 2018-10-19 | 2019-01-08 | 中铁隧道局集团有限公司 | Be open more pipe joint type large cross-section tunnels and method of construction, tube coupling connection structure and connection method more |
| CN109162729B (en) * | 2018-10-19 | 2023-12-12 | 中铁隧道局集团有限公司 | Multi-opening multi-pipe-section type large-section tunnel, construction method, pipe section connecting structure and connecting method |
| CN111335919A (en) * | 2020-03-20 | 2020-06-26 | 重庆渝高科技产业(集团)股份有限公司 | Prefabricated pipe joint pushing method |
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