CN103233753A - Pipe curtain shed frame method used for full-face excavation of construction of shallow-buried large-scale subsurface structure - Google Patents
Pipe curtain shed frame method used for full-face excavation of construction of shallow-buried large-scale subsurface structure Download PDFInfo
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- CN103233753A CN103233753A CN2013101659628A CN201310165962A CN103233753A CN 103233753 A CN103233753 A CN 103233753A CN 2013101659628 A CN2013101659628 A CN 2013101659628A CN 201310165962 A CN201310165962 A CN 201310165962A CN 103233753 A CN103233753 A CN 103233753A
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Abstract
The invention relates to a pipe curtain shed frame method used for full-face excavation of construction of a shallow-buried large-scale subsurface structure. The construction principle is as follows: setting the load of a bearing road surface of a big-diameter pipe shed and a ground layer, and protecting underground pipelines; strengthening a soil body in front by adopting slip casting and a glass fiber anchor rod on an excavation surface to ensure the stability of the excavation surface; arranging a prefabricated temporary support frame structure at the place near the excavation surface; constructing a main body structure under the protection of the pipe shed at the top part and the temporary prefabricated support, and finishing stress conversion of the temporary support frame structure. The invention aims to provide a new method for construction of shallow-buried large-scale subsurface structures under urban roads; the pipe curtain shed frame method used for the full-face excavation of the construction of the shallow-buried large-scale subsurface structure has a rational and feasible technology and strong operability, is easy to guarantee the quality of the main body structure, has the property of safe and rapid construction, reduces influence to ground traffic and detachment of the underground pipelines, has remarkable comprehensive benefits, and achieves important engineering application values and development foreground.
Description
Technical field
The present invention relates to a kind of job practices of building for the shallow embedding Large Underground Structure, particularly a kind of pipe curtain shed frame method of full face excavation of building for the shallow embedding Large Underground Structure belongs to the underground structure construction field.
Background technology
When building the subway station of crossing road now, the station structure that is positioned at the road both sides generally adopts cut and cover method, the road downside then reduces the section size and adopts the tunnel than light section to connect, the overall structure form at station is separated, two independent structures connect by the tunnel, can not form integral body, form of structure remains to be improved.In addition, in recent years, major diameter, long distance pipe canopy directional drilling technical development be maturation comparatively, carries out fairly large soil excavation and become possibility under major diameter, the protection of long distance pipe canopy, has created condition for building the big section subway station of crossing road.
Summary of the invention
Based on the problems referred to above, the present invention proposes a kind of pipe curtain shed frame method of full face excavation of building for the shallow embedding Large Underground Structure, it is in the construction of shallow buried covered excavation Large Underground Structure, adopt large diameter pipe canopy to form pipe curtain advance support, bear superstratum deadweight and road vehicles load, and by design of section, rationally arrangement of reinforcement and material are selected to make it have enough bending rigidities, satisfy the Deformation control requirement; Adopt full section slip casting and glass fiber bolt anchorage the place ahead soil body to guarantee the stable of the face that excavates at the excavation face; Setting up the prefabricated interim support frame structure of easy disassembly near excavation face place, carry out stress transmission with agent structure; Under large diameter pipe curtain and interim overfill protection, adopt the glass fiber bolt anchorage excavation face soil body to carry out fairly large full section soil excavation, satisfy Large Underground Structure fast, the requirement of safe construction.
The technical solution used in the present invention is as follows:
A kind of pipe curtain shed frame method of full face excavation of building for the shallow embedding Large Underground Structure, it is characterized in that: construction sequence is:
Step 1: planning to build underground structure one end excavating shaft;
Step 2: be the service depot with the vertical shaft, apply major diameter solid matter pipe canopy planning to build underground structure one side level;
Step 3: be the service depot with the vertical shaft, apply the glass fiber bolt anchorage and all excavate the soil body in the scope planning to build underground structure one side level;
Step 4: after described major diameter solid matter pipe canopy and glass fiber anchor pole apply and finish, apply the part of station agent structure, it comprise first row's pillar and between top board, middle plate and base plate form frame structures;
Step 5: treat to excavate the interior soil body of reinforcing scope to next row's pillar place after agent structure intensity reaches requirement; The excavation face is carried out full section grouting and reinforcing; By the interim support frame of first row's pillar past excavation side certain distance erecting;
Step 6: under the protection of prefabricated interim support frame and major diameter solid matter pipe canopy, the station agent structure is applied to next row's pillar place; Treat to remove when structural strength reaches designing requirement prefabricated interim support frame;
Step 7: repeating step five and step 6 are to design attitude;
Step 8: station agent structure and two-end structure are linked, and the backfill vertical shaft recovers the road surface.
Further, in the described step 2, mutually interlock between the described major diameter solid matter pipe canopy, or take to be parallel to the horizontal deep hole grouting measure of major diameter solid matter pipe canopy.
Further, in the described step 2, described major diameter solid matter pipe canopy adopts identical or different diameter in different positions.
Wherein, adopt full section slip casting and glass fiber anchor pole to reinforce the soil body in the excavation scope jointly.
Digging process is to carry out under the common protection of completed agent structure, major diameter solid matter pipe canopy and prefabricated interim support frame.
Beneficial effect
The pipe curtain shed frame method of the full face excavation that is used for the construction of shallow embedding Large Underground Structure that the present invention proposes; reach under the interim overfill protection at the large diameter pipe curtain, adopt the glass fiber bolt anchorage excavation face soil body to carry out fairly large full section soil excavation; with the big section of the same employing of road both sides underground structure, guaranteed the globality of underground structure.Carry out full section or large cross section excavation under pipe canopy and supporting and protection structure protection, speed of application is fast, and the duration is short.Only take part or do not take greenbelt and sidewalk, having avoided taking because of large tracts of land, for a long time road influences or suspends traffic, and Guan Peng superstratum gut line does not need to tear down and reconstruct yet.Supporting and protection structure is prefabricated in the pipe canopy, and easy accessibility is reusable, the economic benefit height.
Description of drawings
Fig. 1 is the structure chart of the present invention for the pipe curtain shed frame method of the full face excavation of shallow embedding Large Underground Structure construction;
Fig. 2 is the I-I sectional drawing of Fig. 1;
Fig. 3～Figure 18 is each construction step order figure of the present invention, and wherein, Fig. 3 is excavating shaft; Fig. 5 is for applying major diameter solid matter pipe canopy; Fig. 7 is for applying the glass fiber bolt anchorage soil body; Fig. 9 is the agent structure that applies in first row's pillar scope; Figure 11 supports for the excavation soil body, erecting temporarily; Figure 13 applies main structure body and removes interim the support; Figure 15 is for repeating Figure 11, Figure 13 content to finishing entire infrastructure; Figure 17 handles the structure both sides, is connected with road down either side structure; Fig. 4, Fig. 6, Fig. 8, Figure 10, Figure 12, Figure 14, Figure 16, Figure 18 be the I-I sectional drawing of corresponding diagram 3, Fig. 5, Fig. 7, Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17 respectively.
Among the figure, 1, the road surface, 2, underground utilities, 3, vertical shaft, 4, major diameter solid matter pipe canopy, 5, agent structure, 6, the glass fiber anchor pole, 7, prefabricated interim support frame.
The specific embodiment
Shown in Fig. 1-18, for double-deck two posts three of shallow embedding under the urban road of the present invention are striden subway station embodiment, adopt the pipe curtain shed frame method of full face excavation of building for the shallow embedding Large Underground Structure of the present invention, its agent structure is formed (its structure is formed shown in Fig. 1-2) by cast-in-situ steel reinforced concrete, its structure top thickness of earth covering 6.0m, excavated section is of a size of 19.1m * 11.95m, long 41m, and by reference to the accompanying drawings, construction step order of the present invention is further described in detail.
The concrete construction step order of present embodiment is:
The first step: planning to build underground structure one end excavating shaft 3(as shown in Figure 3-4).
Second step: be the service depot with vertical shaft 3, apply major diameter solid matter pipe canopy 4(shown in Fig. 5-6 planning to build underground structure one side level), interlock mutually between the major diameter solid matter pipe canopy, and major diameter solid matter pipe canopy adopts identical diameter in different positions.
The 3rd step: be the service depot with vertical shaft 3, apply glass fiber anchor pole 6 and reinforce the soil body (shown in Fig. 7-8) in whole excavation scopes planning to build underground structure one side level.
The 4th step: after described major diameter solid matter pipe canopy 4 and glass fiber anchor pole 6 apply and finish, apply the part of station agent structure 5, comprise first row's pillar and between top board, middle plate and base plate form frame structures (shown in Fig. 9-10).
The 5th step: the interior soil body of excavation reinforcing scope was to next row's pillar place after agent structure 5 intensity reached requirement; The excavation face is carried out full section grouting and reinforcing; Lean on pillar toward excavating the interim support frame 7(of side certain distance erecting shown in Figure 11-12).
The 6th step: under the protection of prefabricated interim support frame 7 and major diameter solid matter pipe canopy 4, station agent structure 5 is applied to next row's pillar place; Treat to remove when structural strength reaches designing requirement prefabricated interim support frame 7(shown in Figure 13-14).
The 7th step: repeated for the 5th step and the 6th go on foot to design attitude (shown in Figure 15-16).
The 8th step: structure and two-end structure are linked, and backfill vertical shaft 3 recovers road surface 1(shown in Figure 17-18).
More than be an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.
Claims (5)
1. pipe curtain shed frame method that is used for the full face excavation that the shallow embedding Large Underground Structure builds, it is characterized in that: construction sequence is:
Step 1: planning to build underground structure one end excavating shaft (3);
Step 2: be the service depot with vertical shaft (3), apply major diameter solid matter pipe canopy (4) planning to build underground structure one side level;
Step 3: be the service depot with vertical shaft (3), apply glass fiber anchor pole (6) and reinforce the soil body in whole excavation scopes planning to build underground structure one side level;
Step 4: after described major diameter solid matter pipe canopy (4) and glass fiber anchor pole (6) apply and finish, apply the part of station agent structure (5), it comprise first row's pillar and between top board, middle plate and base plate form frame structures;
Step 5: treat to excavate the interior soil body of reinforcing scope to next row's pillar place after agent structure (5) intensity reaches requirement; The excavation face is carried out full section grouting and reinforcing; By the past excavation of the first row's pillar side interim support frame of certain distance erecting (7);
Step 6: under the protection of prefabricated interim support frame (7) and major diameter solid matter pipe canopy (4), station agent structure (5) is applied to next row's pillar place; Treat to remove when structural strength reaches designing requirement prefabricated interim support frame (7);
Step 7: repeating step five and step 6 are to design attitude;
Step 8: station agent structure (5) and two-end structure are linked, and backfill vertical shaft (3) recovers road surface (1).
2. the pipe curtain shed frame method of a kind of full face excavation of building for the shallow embedding Large Underground Structure according to claim 1, it is characterized in that: in the described step 2, mutually interlock between the described major diameter solid matter pipe canopy (4), or take to be parallel to the horizontal deep hole grouting measure of major diameter solid matter pipe canopy (4).
3. the pipe curtain shed frame method of a kind of full face excavation of building for the shallow embedding Large Underground Structure according to claim 1, it is characterized in that: in the described step 2, described major diameter solid matter pipe canopy (4) adopts identical or different diameter in different positions.
4. the pipe curtain shed frame method of a kind of full face excavation of building for the shallow embedding Large Underground Structure according to claim 1 is characterized in that: adopt full section slip casting and glass fiber anchor pole (6) to reinforce the interior soil body of excavation scope jointly.
5. the pipe curtain shed frame method of a kind of full face excavation of building for the shallow embedding Large Underground Structure according to claim 1, it is characterized in that: digging process is to carry out under the common protection of completed agent structure (5), major diameter solid matter pipe canopy (4) and prefabricated interim support frame (7).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763449A (en) * | 2015-02-04 | 2015-07-08 | 清华大学 | Design method for water curtain system of underground water seal cave depot |
| CN105909259A (en) * | 2016-06-12 | 2016-08-31 | 中铁十九局集团轨道交通工程有限公司 | Pipe curtain construction settlement control system and method for close-range underpassing of existing shield tunnel |
| CN106837357A (en) * | 2017-03-24 | 2017-06-13 | 山东大学 | A kind of no-dig technique pipe-roof method of use curve pipe canopy |
| CN110067561A (en) * | 2019-04-26 | 2019-07-30 | 中铁二十三局集团有限公司 | Under wear both wired Urban Underground mining sectbn construction methods |
| CN110107321A (en) * | 2019-05-08 | 2019-08-09 | 上海隧道工程有限公司 | Fixed support frame frame mounting device and its installation method applied to pipe-roof method |
| CN110359928A (en) * | 2019-07-17 | 2019-10-22 | 中铁二院重庆勘察设计研究院有限责任公司 | Shallow tunnel pipe curtain tunneling tunneling boring engineering method under a kind of complicated environmental condition |
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| CN102704957A (en) * | 2012-05-11 | 2012-10-03 | 北京工业大学 | Shed-frame method for shallowly burying large-sized underground structure construction |
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| JP2001207788A (en) * | 2000-01-28 | 2001-08-03 | East Japan Railway Co | Limited backfilling injection work method in underground structure construction method |
| JP2004124615A (en) * | 2002-10-07 | 2004-04-22 | Ohbayashi Corp | Construction method of great-depth underground cavity |
| JP2007077677A (en) * | 2005-09-14 | 2007-03-29 | Taisei Corp | Construction method for underground structure |
| JP2009024368A (en) * | 2007-07-18 | 2009-02-05 | Yoshihito Kobayashi | Underground structure construction method, and underground structure and underground atomic power plant constructed by the method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763449A (en) * | 2015-02-04 | 2015-07-08 | 清华大学 | Design method for water curtain system of underground water seal cave depot |
| CN105909259A (en) * | 2016-06-12 | 2016-08-31 | 中铁十九局集团轨道交通工程有限公司 | Pipe curtain construction settlement control system and method for close-range underpassing of existing shield tunnel |
| CN105909259B (en) * | 2016-06-12 | 2018-02-06 | 中铁十九局集团轨道交通工程有限公司 | Existing shield tunnel pipe curtain construction settlement control system and method are closely worn down |
| CN106837357A (en) * | 2017-03-24 | 2017-06-13 | 山东大学 | A kind of no-dig technique pipe-roof method of use curve pipe canopy |
| CN106837357B (en) * | 2017-03-24 | 2019-07-12 | 山东大学 | A kind of no-dig technique pipe-roof method using curve pipe canopy |
| CN110067561A (en) * | 2019-04-26 | 2019-07-30 | 中铁二十三局集团有限公司 | Under wear both wired Urban Underground mining sectbn construction methods |
| CN110107321A (en) * | 2019-05-08 | 2019-08-09 | 上海隧道工程有限公司 | Fixed support frame frame mounting device and its installation method applied to pipe-roof method |
| CN110359928A (en) * | 2019-07-17 | 2019-10-22 | 中铁二院重庆勘察设计研究院有限责任公司 | Shallow tunnel pipe curtain tunneling tunneling boring engineering method under a kind of complicated environmental condition |
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Application publication date: 20130807 |