CN209354132U - Can mechanization apply the supporting construction of Large Span Underground space structure - Google Patents
Can mechanization apply the supporting construction of Large Span Underground space structure Download PDFInfo
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- CN209354132U CN209354132U CN201920001839.5U CN201920001839U CN209354132U CN 209354132 U CN209354132 U CN 209354132U CN 201920001839 U CN201920001839 U CN 201920001839U CN 209354132 U CN209354132 U CN 209354132U
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Abstract
It is a kind of can mechanization apply the supporting construction of Large Span Underground space structure, include rectangular top pipe pilot tunnel, second pilot tunnel, third pilot tunnel, 4th pilot tunnel, lateral canopy protection structure, side drilling pile and intermediate drilling pile, the rectangular top pipe pilot tunnel is vertically parallel to urban road surfaces setting, the transverse direction canopy protection structure laterally extends to two sides from the upper end of rectangular top pipe pilot tunnel, second pilot tunnel, third pilot tunnel and the 4th pilot tunnel are parallel to the setting of rectangular top pipe pilot tunnel and are located at the lower section of lateral canopy protection structure, multiple side drilling piles are equipped in second pilot tunnel and the 4th pilot tunnel, multiple intermediate drilling piles are equipped in rectangular top pipe pilot tunnel and third pilot tunnel；Thus, the utility model energy mechanized construction Large Span Underground space structure, it is able to cooperate applicable China's overwhelming majority area, using the effective support cooperation of more pilot tunnels, lateral canopy protection structure, drilling pile, it can guarantee the safe and reliable of operating process, construction risk is effectively reduced, improves the security protection of operator.
Description
Technical field
The utility model relates to the technical field of underground space construction more particularly to one kind can mechanization with applying large span
The supporting construction of down space structure.
Background technique
With the acceleration of Urbanization in China, the rate of exploitation and exploitation scale of urban underground space increasingly increase, track
Traffic, pipe gallery, underground garage and various integrated facilities etc. are just in China's underground space Large scale construction.China underground work
It is also few in world's underground engineering construction history that the construction of journey, which enters a completely new epoch, construction scale and construction speed,
Have.The building method of usually construction underground engineering has cut and cover method, cap excavation method and subsurface excavation method.
But existing technology relies on hand excavation, during soil excavation, always will appear people directly facing non-supporting soil
The case where body, construction risk are big.The gunite concrete operation in work progress can cause a large amount of dust in hole simultaneously, cause
Operating environment is poor in hole, it is difficult to realize that Green civilization is constructed.
For this purpose, the designer of the utility model, in view of drawbacks described above, by concentrating on studies and designing, synthesis is long-term for many years
Be engaged in the experience and achievement of related industry, researching and designing go out it is a kind of can mechanization apply the supporting knot of Large Span Underground space structure
Structure, to overcome drawbacks described above.
Utility model content
The purpose of this utility model is to provide it is a kind of can mechanization apply the supporting construction of Large Span Underground space structure,
Its structure is simple, easy to operate, can solve construction method in the prior art and relies on hand excavation, operating environment is poor, construction risk
The problem high, construction quality is difficult to ensure, project progress is slow, recruitment is in short supply.
To solve the above problems, the utility model discloses it is a kind of can mechanization apply the branch of Large Span Underground space structure
Protection structure, comprising rectangular top pipe pilot tunnel, the second pilot tunnel, third pilot tunnel, the 4th pilot tunnel, lateral canopy protection structure, side drilling pile with
And intermediate drilling pile, it is characterised in that:
The rectangular top pipe pilot tunnel is vertically parallel to urban road surfaces setting, and the transverse direction canopy protection structure is from rectangular top pipe
The upper end of pilot tunnel laterally extends to two sides, and second pilot tunnel, third pilot tunnel and the 4th pilot tunnel are parallel to rectangular top pipe pilot tunnel and set
The lower section of lateral canopy protection structure is set and be located at, is equipped with multiple sides extended straight down in the second pilot tunnel and the 4th pilot tunnel of two sides
Face drilling pile is located in the middle in rectangular top pipe pilot tunnel and third pilot tunnel and is equipped with multiple intermediate drilling piles extended straight down.
Wherein: the transverse direction canopy protection structure is more compact arranged miniature formed steel constructions being laterally arranged.
Wherein: the transverse direction canopy protection structure uses miniature formed steel construction.
Wherein: miniature formed steel construction uses diameter 400mm miniature steel pipe below.
Wherein: intermediate drilling pile forms the medial support structures to lateral canopy protection structure by steel pipe column.
Wherein: the peripheral wall of the rectangular top pipe pilot tunnel is thin-walled steel fiber reinforced concrete structure.
Wherein: the second pilot tunnel, third pilot tunnel and the 4th pilot tunnel use U-shaped structure.
Wherein: the horizontal size of the rectangular top pipe pilot tunnel is within 3m, and vertical height is within 3m.
By above structure it is found that the utility model can mechanization apply Large Span Underground space knot supporting construction tool
There is following effect:
1, it avoids producing bigger effect road normal use, moreover it is possible to mechanized construction Large Span Underground space structure,
It is able to cooperate applicable China's overwhelming majority area.
2, cooperated using the effective support of more pilot tunnels, lateral canopy protection structure, drilling pile, can guarantee that the safety of operating process can
It leans on, construction risk is effectively reduced, improve the security protection of operator.
The detailed content of the utility model can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 show the utility model can mechanization apply Large Span Underground space structure supporting construction it is cross-sectional
Figure.
Fig. 2 shows the plan view of the utility model.
Specific embodiment
Referring to Fig. 1 to Fig. 2, it is shown that the utility model can mechanization apply the supporting knot of Large Span Underground space structure
Structure.
Wherein, can mechanization apply Large Span Underground space structure supporting construction include rectangular top pipe pilot tunnel 11, second
Pilot tunnel 12, third pilot tunnel 13, the 4th pilot tunnel 14, lateral canopy protection structure 15, side drilling pile 16 and intermediate drilling pile 17, it is described
Rectangular top pipe pilot tunnel 11 is vertically parallel to urban road surfaces setting, the rectangular top pipe perpendicular to underground structure main stress direction
The peripheral wall of pilot tunnel 11 is thin-walled steel fiber reinforced concrete structure, and the transverse direction canopy protection structure 15 is horizontal from the upper end of rectangular top pipe pilot tunnel 11
Extend to two sides, and the lateral canopy protection structure 15 is that more compact arranged steel constructions being laterally arranged are (preferably miniature
Formed steel construction), and the lateral canopy protection structure 15 (largely is being applied or is being expected to apply using miniature formed steel construction according to statistics China
The Large Underground space structure of work, earthing are computed and diameter 400mm can be used in 8m or so, lateral single span width in 7m or so
Miniature steel pipe below or other formed steel constructions form lateral canopy protection structure), second pilot tunnel 12, third pilot tunnel 13 and the 4th
Pilot tunnel 14 is parallel to the setting of rectangular top pipe pilot tunnel 11 and is located at the lower section of lateral canopy protection structure 15, second pilot tunnel 12, third
Pilot tunnel 13 and the 4th pilot tunnel 14 are that the vertical supporting structure of lateral canopy protection structure 15 is also the working space of mechanical hole building stake,
It uses reinforced concrete structure.
Multiple side drilling piles 16 extended straight down are equipped in second pilot tunnel 12 of two sides and the 4th pilot tunnel 14, are located at
Be equipped with multiple intermediate drilling piles 17 extended straight down in intermediate rectangular top pipe pilot tunnel 11 and third pilot tunnel 13, and centre at
Hole stake 17 forms the medial support structures to lateral canopy protection structure 15 by steel pipe column 18.
And it is described can mechanization apply the supporting construction of Large Span Underground space structure and can be carried out by following construction method
Construction:
Step 1: construction shaft and transverse passage-way, to provide the unearthed and charging of underground space structure, specifically, construction
Vertical shaft should carry out enclosing to elder generation in the case where not influencing traffic on the vacant lot of urban road sideline two sides, construct in enclosing
The multiple spaced vertical shafts of tunneling, the horizontal of the following distance construction level of the urban road surfaces in each vertical shaft lead to
Road, being unearthed during being applied for underground space structure tunneling and charging.The quantity of construction shaft and transverse passage-way, by building
Length, height, width, construction period and the place situation of the comprehensive underground structure of person determine.
Step 2: vertically arranged rectangular top pipe pilot tunnel 11, the rectangular top are applied using push bench process in each transverse passage-way
The horizontal size of pipe pilot tunnel 11 controls within 3m, and vertical height is controlled in 3m or so, to reduce the difficulty of jacking construction.Because of square
The pipe curtain or major diameter rain sewage pipe that the cross dimensions of shape push pipe pilot tunnel 11 is constructed with major diameter pipe-roof method are closely sized to, and are led simultaneously
The soil body shape body on hole periphery is also similar to its, therefore using with the construction of conventional tube curtain method or the identical jacking work of rain sewage pipe construction
Skill.The merogenesis length of rectangular top pipe pilot tunnel 11 is determined by the width of transverse passage-way.For the mechanization convenient for later period transverse direction canopy protection structure
Construction and the overall stability for guaranteeing rectangular top pipe pilot tunnel 11 in lateral canopy protection structure construction, the material of rectangular top pipe pilot tunnel 11 are adopted
With thin-walled steel fiber reinforced concrete structure, merogenesis jacking rectangular top pipe pilot tunnel 11 utilizes small-sized excavator up to reaching predetermined length
Realize the unearthed operation in rectangular top pipe pilot tunnel 11.
Wherein ,-and the do mechanization operation of rectangular top pipe pilot tunnel 11 is realized, hand excavation is avoided relying on, construction personnel is straight
The split excavator body of junction, construction risk is high, operating environment is poor, construction quality is difficult to ensure, project progress is slow, recruitment is in short supply asks
Topic.
After forming rectangular top pipe pilot tunnel 11, the lateral canopy in the upper end jacking vertical cut direction of rectangular top pipe pilot tunnel 11 is protected
Structure 15, the transverse direction canopy protection structure 15 be more compact arranged steel constructions being laterally arranged, and the transverse direction canopy protection structure
15 use miniature formed steel construction, and (most of in the Large Underground space structure for applying or being expected construction according to statistics China, earthing exists
8m or so, lateral single span width are computed and diameter 400mm miniature steel pipe below or other formed steel constructions can be used in 7m or so
Form lateral canopy protection structure), specific size is calculated according to earthing and structural span and is determined.In combination with duration of a project situation, in square
More micro-push bench are set simultaneously in shape push pipe pilot tunnel 11 to realize the jacking of lateral canopy shield, transverse miniature formed steel construction is laid
The selection of mode reduces the perimeter dimension and length of jacking structure, avoids and is faced in conventional tube curtain construction jack-in process
Jacking difficulty is big, jacking device scarce capacity, jacking working space demand are big, the high, construction settlement to construction site area requirements
It is difficult to control, the problem that cost is high.
Step 3: after the lateral canopy protection structure 15 that vertical structure excavates direction is formed, in the guarantor of lateral canopy protection structure 15
Under shield, jacking construction forms the second pilot tunnel 12, third pilot tunnel 13 and the 4th pilot tunnel 14, second pilot tunnel 12, third pilot tunnel 13
And the 4th these three pilot tunnels of pilot tunnel 14 use low grade reinforced concrete structure.To avoid in conventional tube curtain construction jack-in process
Be faced with jacking difficulty is big, jacking device scarce capacity, jacking working space demand are big, it is high to construction site area requirements, apply
The problem that work sedimentation is uncontrollable, cost is high.Using following methods
Because of the presence of canopy protection structure, the second pilot tunnel 12, third pilot tunnel 13 and the 4th pilot tunnel 14 (can also be adopted using U-shaped structure
With enclosed construction), therefore jacking frictional resistance reduces about 1/4.
Because of the presence of lateral canopy protection structure, after the second pilot tunnel 12, third pilot tunnel 13 and the 4th pilot tunnel 14 move ahead about 10m,
It can carry out taking native operation between the second pilot tunnel 12, third pilot tunnel 13 and the 4th pilot tunnel 14, carry out that the excavation of native operation is taken to take native face
Distance apart from pilot tunnel front end working face is not less than pilot tunnel height, takes soil to use small-sized excavator, to be effectively reduced
The jacking force of jacking construction.
The construction of the second pilot tunnel 12, third pilot tunnel 13 and the 4th pilot tunnel 14, jacking length are carried out by above-mentioned two mode
Longer effect is more obvious, and by taking jacking 100m as an example, can save jacking power 60%~70%.
Step 4: multiple erect is applied using forming machinery in hole in the second pilot tunnel 12 and the 4th pilot tunnel 14 for being located at two sides
The side drilling pile 16 directly extended downwardly, to realize vertical power transmission and horizontal earth-retaining.It is being located in the middle rectangular top pipe pilot tunnel 11
And multiple intermediate drilling piles 17 extended straight down, and intermediate drilling pile are applied using forming machinery in hole in third pilot tunnel 13
17 form the medial support structures to lateral canopy protection structure 15 by steel pipe column 18.To form whole supporting construction, pass through
The completion of entire supporting construction, realizes the mechanized construction of vertical supporting construction at the problem of avoiding relying on hand excavation.
As a result, utility model has the advantages that
1, it avoids producing bigger effect road normal use, moreover it is possible to mechanized construction Large Span Underground space structure,
It is able to cooperate applicable China's overwhelming majority area.
2, cooperated using the effective support of more pilot tunnels, lateral canopy protection structure, drilling pile, can guarantee that the safety of operating process can
It leans on, construction risk is effectively reduced, improve the security protection of operator.
It is readily apparent that above description and record is only citing rather than in order to limit the disclosure of the utility model
Content, application or use.Although describing and being described in the accompanying drawings embodiment, the utility model in embodiment
Do not limit by attached drawing example and be described as in embodiment it is now recognized that optimal mode to implement the religion of the utility model
The specific examples led, the scope of the utility model will include any implementation for falling into the description and appended claims of front
Example.
Claims (8)
1. one kind can mechanization apply the supporting construction of Large Span Underground space structure, comprising rectangular top pipe pilot tunnel, the second pilot tunnel,
Third pilot tunnel, the 4th pilot tunnel, lateral canopy protection structure, side drilling pile and intermediate drilling pile, it is characterised in that:
The rectangular top pipe pilot tunnel is vertically parallel to urban road surfaces setting, and the transverse direction canopy protection structure is from rectangular top pipe pilot tunnel
Upper end laterally to two sides extend, second pilot tunnel, third pilot tunnel and the 4th pilot tunnel be parallel to rectangular top pipe pilot tunnel setting and
Be equipped with positioned at the lower section of lateral canopy protection structure, in the second pilot tunnel and the 4th pilot tunnel of two sides multiple sides extended straight down at
Hole stake, is located in the middle in rectangular top pipe pilot tunnel and third pilot tunnel and is equipped with multiple intermediate drilling piles extended straight down.
2. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: institute
Stating lateral canopy protection structure is more compact arranged miniature formed steel constructions being laterally arranged.
3. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: institute
Lateral canopy protection structure is stated using miniature formed steel construction.
4. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: it is micro-
Type formed steel construction uses diameter 400mm miniature steel pipe below.
5. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: in
Between drilling pile the medial support structures to lateral canopy protection structure are formed by steel pipe column.
6. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: institute
The peripheral wall for stating rectangular top pipe pilot tunnel is thin-walled steel fiber reinforced concrete structure.
7. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that:
Two pilot tunnels, third pilot tunnel and the 4th pilot tunnel use U-shaped structure.
8. as described in claim 1 can mechanization apply the supporting construction of Large Span Underground space structure, it is characterised in that: institute
The horizontal size for stating rectangular top pipe pilot tunnel is within 3m, and vertical height is within 3m.
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| CN201920001839.5U CN209354132U (en) | 2019-01-02 | 2019-01-02 | Can mechanization apply the supporting construction of Large Span Underground space structure |
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| CN201920001839.5U CN209354132U (en) | 2019-01-02 | 2019-01-02 | Can mechanization apply the supporting construction of Large Span Underground space structure |
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| CN209354132U true CN209354132U (en) | 2019-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538217A (en) * | 2019-01-02 | 2019-03-29 | 北京城建设计发展集团股份有限公司 | Can mechanization apply the construction method and its supporting construction of Large Span Underground space structure |
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2019
- 2019-01-02 CN CN201920001839.5U patent/CN209354132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538217A (en) * | 2019-01-02 | 2019-03-29 | 北京城建设计发展集团股份有限公司 | Can mechanization apply the construction method and its supporting construction of Large Span Underground space structure |
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