CN109339827A - The excavating construction method of multi-layer underground structure - Google Patents
The excavating construction method of multi-layer underground structure Download PDFInfo
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- CN109339827A CN109339827A CN201811338785.8A CN201811338785A CN109339827A CN 109339827 A CN109339827 A CN 109339827A CN 201811338785 A CN201811338785 A CN 201811338785A CN 109339827 A CN109339827 A CN 109339827A
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- underground structure
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D13/00—Large underground chambers; Methods or apparatus for making them
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/04—Provisional protective covers for working space for use in drifting galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention provides a kind of excavating construction method of multi-layer underground structure, construction starting well and received well, and construct vertical supporting building enclosure and pipe curtain, it is active well to the sequence of construction of another well using starting well or received well, it is no more than the upper and lower level of the form of construction work of upper one layer of construction section while underground structure of constructing with next layer of construction section, after excavating at least one layer of correspondent section for completing underground structure, prefabricated panel is laid in correspondent section；Temporary support structure is arranged between the first layer prefabricated panel and pipe curtain of correspondent section and between the adjacent two layers prefabricated panel of correspondent section to underground structure construction steel pipe stake in stake holes by reserving on the prefabricated panel；Complete first layer to M layer prefabricated panel laying and its steel-pipe pile construction after, dismounting temporary support structure.The present invention improves construction efficiency, shortens construction period.
Description
Technical field
The present invention relates to technical field of buildings, in particular to a kind of excavating construction method of multi-layer underground structure.
Background technique
Rationally and effectively development and utilization Underground Space Resource facilitates the sustainable development in city.In order to make full use of city
The underground space below the existing communal facility such as road, railway, airport, landscape green space, and require effectively control earth's surface deformation simultaneously
Reduce influence of the construction to it as far as possible.For subway station, this kind of underground structure in pedestrian passage is handed over due to being commonly located at city
Under logical line, compared with the cut and cover method big to ground traffic impact, generally using tunneling or cap excavation method engineering method as primary choosing
It selects, achievees the purpose that the short time replys traffic above-ground by the way that the construction of underground structure top layer is rapidly completed.However, subsurface excavation method or lid are dug
The shortcomings that method, is also fairly obvious.Since top level structure is constructed completion first, subsequent lower part soil excavation and transport it is very difficult, greatly
The use of scale of construction excavating machinery is restricted.Therefore, it is however generally that, subsurface excavation method mechanization degree is low, and speed of application is slow, work of constructing
Phase is long.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the above deficiency, provide a kind of tunneling of multi-layer underground structure
Construction method, to solve the problems, such as long construction period.
In order to solve the above technical problem, the present invention provides a kind of excavating construction method of multi-layer underground structure,
Starting well and received well are constructed in interval in the building plans area of multi-layer underground structure；
The construction vertical supporting building enclosure between the starting well and received well；
Close to ground one end the starting well and received well between several steel pipes of horizontal distribution, adjacent steel pipe it
Between filling sealing material formed pipe curtain；
It is active well to the sequence of construction of another well using starting well or received well, is no more than with next layer of construction section upper
The upper and lower level of the form of construction work of one layer of construction section while multi-layer underground structure of constructing；
After excavating at least one layer of correspondent section for completing underground structure, prefabricated panel is laid in correspondent section；
By stake holes reserved on the prefabricated panel to underground structure construction steel pipe stake, in the first layer of correspondent section
Temporary support structure is set between prefabricated panel and pipe curtain and between the adjacent two layers prefabricated panel of correspondent section；
Complete first layer to M layer prefabricated panel laying and its steel-pipe pile construction after, dismounting temporary support structure.
Further, the excavating construction method of multi-layer underground structure provided by the invention, the multi-layer underground structure are M
Layer, divides N sections of slopes gradually to construct every layer of underground structure, and wherein M, N are the integer more than or equal to 2；Wherein multi-layer underground
The excavation relationship of structure is as follows:
| One layer | 1 section | 2 sections | 3 sections | …… | N sections | |||
| Two layers | 1 section | 2 sections | 3 sections | …… | N sections | |||
| …… | 1 section | 2 sections | 3 sections | …… | N sections | |||
| M layers | 1 section | 2 sections | 3 sections | …… | N sections |
。
Further, the excavating construction method of multi-layer underground structure provided by the invention, in the starting well and received well
Inner sidewall use the first vertical supporting of static pressure construction building enclosure, between the starting well and received well use static pressure method
It constructs the second vertical supporting building enclosure, the second vertical supporting building enclosure and the first vertical supporting building enclosure phase
It is mutually vertical, to form vertical supporting building enclosure in the building plans area of multi-layer underground structure.
Further, the excavating construction method of multi-layer underground structure provided by the invention, first vertical supporting are gone along with sb. to guard him
The depth of structure is more than or equal to the depth of the underground first layer bottom plate of multi-layer underground structure；Second vertical supporting is gone along with sb. to guard him
The depth of structure is greater than the depth of the bottom bottom plate of multi-layer underground structure.
Further, the excavating construction method of multi-layer underground structure provided by the invention, the pouring concrete within steel pipe
Core.
Further, the excavating construction method of multi-layer underground structure provided by the invention, the prefabricated panel and corresponding position
The steel-pipe pile set is welded or is connected by connector.
Further, the excavating construction method of multi-layer underground structure provided by the invention, the starting well and received well are opened
Depth is dug to flush with the first layer floor level of underground structure.
Further, the excavating construction method of multi-layer underground structure provided by the invention passes through comprehensive high-pressure injection work
Method carries out soil stabilization to received well and starting well borehole wall horizontal grouting mode.
Further, the excavating construction method of multi-layer underground structure provided by the invention, sets on the layer of not steel-pipe pile
Structural column is set, connect the structural column with the steel-pipe pile.
Further, the excavating construction method of multi-layer underground structure provided by the invention, the temporary support structure include
Interim vertical beam, interim horizontal brace and bridging.
Compared with prior art, the excavating construction method of multi-layer underground structure provided by the invention, with next layer of construction
Section is no more than the upper and lower level of the form of construction work of upper one layer of construction section while multi-layer underground structure of constructing, it is not necessary to wait one layer to apply
After work, then construction efficiency is improved so as to shorten construction period to the latent period of the construction of next layer of progress.This
The excavating construction method for inventing the multi-layer underground structure provided, constructs to underground structure under pipe curtain, to not influence
The passage of traffic above-ground.Vertical supporting building enclosure can protect the smooth construction of underground structure, prevent the safety such as soil body collapsing
Risk.In every layer of every section of laying prefabricated panel of underground structure, rather than bottom plate is poured at scene, can not only improve each layer bottom plate knot
The stability of structure, additionally it is possible to construction efficiency is improved, further to shorten construction period.Support of the steel-pipe pile as underground structure
Column can be improved the stability of underground structure.Temporary support structure can be improved the safety in work progress, prevent safe thing
Therefore generation.
Detailed description of the invention
Fig. 1 to Fig. 8 is the process schematic of the excavating construction method of multi-layer underground structure of the embodiment of the present invention；
It is as shown in the figure: 100, building plans area, 110, starting well, 120, received well, 130, vertical supporting building enclosure,
140, pipe curtain, 141, steel pipe, 150, prefabricated panel, 160, steel-pipe pile, 170, temporary support structure, 180, structural column.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
The embodiment of the present invention provides a kind of excavating construction method of multi-layer underground structure,
Fig. 1 and Fig. 2 are please referred to, interval is constructed starting well 110 and received in the building plans area 100 of multi-layer underground structure
Well 120；
Referring to FIG. 3, vertical supporting building enclosure 130 of constructing between the starting well 110 and received well 120；
Referring to FIG. 4, horizontal distribution is several between the starting well 110 and received well 120 close to the one end on ground
Root steel pipe 141, filling sealing material forms pipe curtain 140 between adjacent steel pipe 141；
Referring to FIG. 5, being the sequence of construction of active well with starting well 110 or received well 120, with next layer of construction section
No more than the form of construction work of upper one layer of construction section while the upper and lower level for multi-layer underground structure of constructing；Such as the multi-layer underground knot
Structure is set as M layers, divides N sections of slopes gradually to construct every layer of underground structure, and wherein M, N are the integer more than or equal to 2；It is wherein more
The excavation relationship of layer underground structure can be for shown in the following table 1:
| One layer | 1 section | 2 sections | 3 sections | …… | N sections | |||
| Two layers | 1 section | 2 sections | 3 sections | …… | N sections | |||
| …… | 1 section | 2 sections | 3 sections | …… | N sections | |||
| M layers | 1 section | 2 sections | 3 sections | …… | N sections |
。
Table 1
Fig. 5 and Fig. 6 are please referred to, after excavating at least one layer of correspondent section for completing underground structure, is laid in correspondent section pre-
Bottom plate 150 processed；
Fig. 5 and Fig. 6 are please referred to, by stake holes reserved on the prefabricated panel 150 to underground structure construction steel pipe stake
160, between the first layer prefabricated panel 150 and pipe curtain 140 of correspondent section and the adjacent two layers prefabricated panel of correspondent section
Temporary support structure 170 is set between 150；
Referring to FIG. 7, complete first layer to M layers of prefabricated panel 150 laying and its steel-pipe pile 160 construction after,
Remove temporary support structure 170.
Referring to FIG. 3, the excavating construction method of multi-layer underground structure provided in an embodiment of the present invention, using static pressure construction
Steel-pipe pile 160 forms vertical supporting building enclosure 130.Wherein vertical supporting building enclosure 130 is included in the starting well 110
Construct the first vertical supporting building enclosure with the inner sidewall of received well 120, and the starting well 110 and received well 120 it
Between construct the second vertical supporting building enclosure, the second vertical supporting building enclosure and the first vertical supporting building enclosure
It is mutually perpendicular to.Vertical supporting building enclosure 130 can use stand column pile, and the insertion depth of stand column pile is greater than the bottom of underground structure
Layer bottom plate depth, to improve the stability of underground structure.
The excavating construction method of multi-layer underground structure provided in an embodiment of the present invention, the first vertical supporting building enclosure
Depth be more than or equal to multi-layer underground structure underground first layer bottom plate depth；The second vertical supporting building enclosure
Depth be greater than multi-layer underground structure bottom bottom plate depth.To improve the construction safety of underground structure and the stabilization of structure
Property.
Referring to FIG. 4, in order to increase the stability of the structure of pipe curtain 140, multi-layer underground knot provided in an embodiment of the present invention
The excavating construction method of structure, concrete perfusion core in the steel pipe 141.The wherein formation of pipe curtain 140, such as from starting well on ground
Using miniature push bench process jacking with " primary and secondary " tongue and groove steel pipe (diameter 610mm, wall thickness 14mm) to received well above flowering structure.
It is provided in an embodiment of the present invention in order to improve the connective stability of the corresponding steel-pipe pile 160 of prefabricated panel 150
The steel-pipe pile 160 of the excavating construction method of multi-layer underground structure, the prefabricated panel 150 and corresponding position welds or leads to
Cross connector connection.
For the ease of the first layer for underground structure of constructing, the boring construction of multi-layer underground structure provided in an embodiment of the present invention
Method, the starting well 110 and 120 cutting depth of received well are flushed with the first layer floor level of underground structure.In construction ground
When below the flowering structure second layer, starting well 110 can synchronous downward construction with received well 120.To reduce construction cost, closely
The borehole wall of flowering structure side, which can be used as, widens station structure exterior wall.When replacing widening station structure exterior wall, the borehole wall goes along with sb. to guard him insertion
Depth is greater than underground structure bottom plate depth elevation.
In order to improve multi-layer underground structure construction safety and structure stability, it is provided in an embodiment of the present invention more
The excavating construction method of layer underground structure, by comprehensive high-pressure injection (Metro Jet System, MJS) engineering method to received well
120 and 110 borehole wall horizontal grouting mode of starting well carry out soil stabilization.
Fig. 6 to Fig. 8 is please referred to, the stability between each layer in order to improve multi-layer underground structure, the embodiment of the present invention mentions
The excavating construction method of the multi-layer underground structure of confession, the setting structure column 180 on the layer of no steel-pipe pile 160, makes the structure
Column 180 is connect with the steel-pipe pile 160.
Fig. 5 and Fig. 6 are please referred to, in order to improve the stability of temporary support structure 170, multilayer provided in an embodiment of the present invention
The excavating construction method of underground structure, the temporary support structure 170 include interim vertical beam, interim horizontal brace and bridging.
The excavating construction method of multi-layer underground structure provided in an embodiment of the present invention is no more than upper with next layer of construction section
The upper and lower level of the form of construction work of one layer of construction section while multi-layer underground structure of constructing, it is not necessary to after waiting one layer of construction,
The latent period of the construction carried out again to next layer improves construction efficiency so as to shorten construction period.The embodiment of the present invention
The excavating construction method of the multi-layer underground structure of offer, constructs to underground structure under pipe curtain 140, to not influence ground
The passage of face traffic.Vertical supporting building enclosure 130 can protect the smooth construction of underground structure, prevent the safety such as soil body collapsing
Risk.In every layer of every section of laying prefabricated panel 150 of underground structure, rather than bottom plate is poured at scene, can not only improve each layer bottom
The stability of hardened structure, additionally it is possible to construction efficiency is improved, further to shorten construction period.Steel-pipe pile 160 is used as underground structure
Support column, can be improved the stability of underground structure.Temporary support structure 170 can be improved the safety in work progress,
Prevent the generation of safety accident.
Fig. 5 and Fig. 7 are please referred to, is illustrated by taking the construction of two layers of underground structure such as bus stop as an example.It includes following
Step:
Step 1, local slope excavates underground structure first layer.
It is that active well is segmented slope to received well 120 and gradually excavates from starting well 110, width direction is from station to the other side
Segmentation gradually excavates underground first layer (every section of excavation depth 4m, every section of width 6m or so), is laid with after the completion of local excavation prefabricated
Bottom plate 150 (prefabricated panel 150 leaves and takes Tu Kou in advance, reserves stake holes position in 160 position of steel-pipe pile), and constructed using anchor rod static pressure method
Steel-pipe pile 160 (the suitable 4m × 6m of intercolumniation) is used as underground structure vertical applied force system, connects structural column 180, the two on steel-pipe pile 160
It is connected by gas welding.160 pile crown of steel-pipe pile is connect with prefabricated panel 150 by welded reinforcement or connector.Wherein structural column 180
For example, steel pipe column applies temporary support system after steel pipe column construction.Temporary support specifically includes that such as H profile steel
The bridging of interim beam, the interim horizontal brace of H profile steel and H profile steel or angle steel.When the layer height of station underground first layer is less than 3 meters
When, bridging form can be added using interim beam column, when the high 3m or more of layer, one of horizontal brace of suitable intermediate arrangement.
Step 2, the synchronous construction up and down of underground structure.
Continue to excavate the basement one soil body, while taking Tu Kou to excavate two layer soil body of underground, the second layer by prefabricated panel 150
Soil excavation mode is identical with first layer, and excavation face construction progress is no more than basement one excavation face.Part steel is excavated
If desired tubing string actually uses, can carry out rigidity reinforcing by external wrapping concrete mode, use eventually as structural column, structure
Column can remove part temporary support after constructing.To improve speed of application, prefabricated bottom is also can be used in two layers of underground bottom plate
Two pieces of prefabricated panel splicings, prefabricated panel advance reservation semicircle hole can be used in plate, steel-pipe pile position.
Step 3, soil excavation finishes, the completion of underground structure.
After upper layer and lower layer soil excavation, prefabricated panel of constructing, steel pipe column (stake) external wrapping concrete that needs are retained
Form structural column.Interim steel pipe column is removed by steel pipe cutting mode, completes the construction of entire underground structure.
It is dark utmostly to improve underground structure for the excavating construction method of multi-layer underground structure provided in an embodiment of the present invention
The working efficiency of excavation construction compares common boring construction, avoids concreting by using prefabricated components and intensity conserves
Process；The synchronous excavation of structure upper and lower level and structure construction, greatly reduce the soil excavation time.Equally reaching earth's surface traffic not
It is final to realize structural body rapid construction, safe construction, to substantially reduce construction period and cost under the premise of influence.
Fig. 6 to Fig. 7 is please referred to, the embodiment of the present invention is not limited to two layers of underground so that two layers to flowering structure as an example, wherein under
Construction speed of the construction speed in one layer of soil excavation face no more than upper layer soil body excavation face.
The excavating construction method of multi-layer underground structure provided in an embodiment of the present invention belongs to an act posture excavating construction method,
Can M layer to underground structure carry out the synchronous construction of upper and lower level, and influence smaller on the current of traffic above-ground, the present invention is real
Applying example rapidly and efficiently can safely realize the construction of underground structure in the case where reducing ground environment influence condition to the greatest extent.The present invention
The basic ideas of embodiment are: being used by establishing underground structure or more synchronous construction process and prefabricated components, reach underground knot
Structure is efficient, rapid, safe construction.
The embodiment of the present invention is not limited to above-mentioned specific embodiment, all to be made in the spirit and scope of the embodiment of the present invention
Various change out, within the protection scope of the embodiment of the present invention.
Claims (10)
1. a kind of excavating construction method of multi-layer underground structure, which is characterized in that
Starting well and received well are constructed in interval in the building plans area of multi-layer underground structure；
The construction vertical supporting building enclosure between the starting well and received well；
Several steel pipes of horizontal distribution between the starting well and received well close to the one end on ground are filled out between adjacent steel pipe
It fills sealing material and forms pipe curtain；
It is active well to the sequence of construction of another well using starting well or received well, is no more than upper one layer with next layer of construction section
The form of construction work of construction section construct simultaneously the upper and lower level of multi-layer underground structure；
After excavating at least one layer of correspondent section for completing underground structure, prefabricated panel is laid in correspondent section；
It is prefabricated in the first layer of correspondent section by stake holes reserved on the prefabricated panel to underground structure construction steel pipe stake
Temporary support structure is set between bottom plate and pipe curtain and between the adjacent two layers prefabricated panel of correspondent section；
Complete first layer to M layer prefabricated panel laying and its steel-pipe pile construction after, dismounting temporary support structure.
2. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that the multi-layer underground structure
It is M layers, divides N sections of slopes gradually to construct every layer of underground structure, wherein M, N is integer more than or equal to 2, wherein multilayer
The excavation relationship of flowering structure is as follows:
。
3. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that in the starting well and connect
The inner sidewall for receiving well uses the first vertical supporting of static pressure construction building enclosure, using quiet between the starting well and received well
Platen press the second vertical supporting building enclosure of construction, the second vertical supporting building enclosure and first vertical supporting go along with sb. to guard him knot
Structure is mutually perpendicular to, to form vertical supporting building enclosure in the building plans area of multi-layer underground structure.
4. the excavating construction method of multi-layer underground structure as claimed in claim 3, which is characterized in that first vertical supporting
The depth of building enclosure is more than or equal to the depth of the underground first layer bottom plate of multi-layer underground structure；Second vertical supporting
The depth of building enclosure is greater than the depth of the bottom bottom plate of multi-layer underground structure.
5. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that perfusion is mixed in the steel pipe
Solidifying core.
6. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that the prefabricated panel with it is right
The steel-pipe pile of position is answered to weld or connect by connector.
7. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that the starting well and reception
Well cutting depth is flushed with the first layer floor level of underground structure.
8. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that pass through comprehensive high pressure spray
It penetrates engineering method and soil stabilization is carried out to received well and starting well borehole wall horizontal grouting mode.
9. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that in the layer of not steel-pipe pile
Upper setting structure column, connect the structural column with the steel-pipe pile.
10. the excavating construction method of multi-layer underground structure as described in claim 1, which is characterized in that the temporary support knot
Structure includes interim vertical beam, interim horizontal brace and bridging.
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|---|---|---|---|
| CN201811338785.8A CN109339827A (en) | 2018-11-12 | 2018-11-12 | The excavating construction method of multi-layer underground structure |
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| CN201811338785.8A CN109339827A (en) | 2018-11-12 | 2018-11-12 | The excavating construction method of multi-layer underground structure |
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Family
ID=65314948
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282809A (en) * | 2020-10-27 | 2021-01-29 | 聊城大学 | Construction method and device for supporting multi-layer underground structure of building |
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