CN202228089U - Connecting passage and pump station structure based on shield tunnels - Google Patents
Connecting passage and pump station structure based on shield tunnels Download PDFInfo
- Publication number
- CN202228089U CN202228089U CN 201120314429 CN201120314429U CN202228089U CN 202228089 U CN202228089 U CN 202228089U CN 201120314429 CN201120314429 CN 201120314429 CN 201120314429 U CN201120314429 U CN 201120314429U CN 202228089 U CN202228089 U CN 202228089U
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- gutter
- service channel
- pumping plant
- tunnel
- shield tunnel
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Abstract
The utility model relates to a connecting passage and pump station structure based on shield tunnels, which is simple in structure and convenient in construction, and aims at optimizing structural style of connecting passages and reducing risk of engineering construction. The technical scheme is that the connecting passage and pump station structure based on shield tunnels comprises a passage communicated with an uplink tunnel and a downlink tunnel. The bottom of the passage is poured by a concrete base plate and provided with a sunken pump room. A drain pipe communicated with the tunnels and the pump room is respectively arranged at the bottoms of the tunnels. The connecting passage and pump station structure based on shield tunnels is characterized in that the drain pipes are arranged in rock soil below the base plate and is suitable for being used in construction of underground shield tunnels.
Description
Technical field
The utility model relates to a kind of based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, mainly is applicable in the construction of underground shield tunnel.
Background technology
The service channel pumping plant of holding concurrently is to connect the interface channel of column rule shield tunnel up and down, and it mainly acts on is to guarantee that taking precautions against natural calamities of operation phase shield tunnel needs and the needs of interval draining.At present, the hold concurrently construction of pumping plant of service channel is carried out after interval shield tunnel construction is accomplished.During construction, remove earlier the steel pipe sheet at service channel place, then with the class Mine Method construction service channel pumping plant of holding concurrently.The hold concurrently construction of pumping plant of service channel is the risk point in the shield tunnel construction, for guaranteeing the hold concurrently safety of pumping plant construction of service channel, before service channel is held concurrently the pumping plant construction, must carry out preparatory consolidation process to the stratum.The adoptable method of stratum consolidation is mainly the freezing reinforcing and ground reinforces two types.Freezing soil mass consolidation intensity is higher, do not receive the influence of traffic above-ground and buried depth, but cost is higher, and this method for designing has only the designing institute of specialty and the construction team of specialty can design and construction simultaneously, and limitation is bigger.Ground reinforces reinforcement means such as can selecting high-pressure rotary jet grouting pile, deep-mixed pile, direct slip casting for use; Easy construction, cost is lower, but bigger to the influence of traffic above-ground; Must carry out that traffic above-ground is discongested and changing of pipeline moves; Though this reinforcement means has proposed concrete reinforcing index simultaneously, receive the restriction of unit in charge of construction's construction level during construction, consolidation effect can't guarantee fully.
As shown in Figure 1, existing service channel is held concurrently in the pumping plant design, and the gutter that connects pump house and shield tunnel generally is employed in the pre-buried mode of service channel base plate, receives the restriction of pre-buried pipe absolute altitude, and the base plate thickness of service channel is often bigger.The service channel base plate is general to adopt two kinds of form of structure, is respectively the structural shape of establishing inverted arch and the structural shape of local subsidence.If the structural shape of inverted arch is shown in accompanying drawing 2, the base plate of this structural shape adopts inverted arch to enlarge the thickness of base plate, and gutter is embedded in the structure.The setting of inverted arch has enlarged the thickness of base plate, and it is dark to have strengthened digging of base plate, needs the bottom of shield tunnel is hollowed out, and causes this place's steel pipe sheet unsettled, causes great risk to construction, shown in accompanying drawing 3.The structural shape of local subsidence is shown in accompanying drawing 4, and the base plate of this structural shape adopts local subsidence can avoid down digging dark adverse effect to shield tunnel, but local subsidence makes base arrangement stressed unreasonable.
Summary of the invention
The technical problem that the utility model will solve is: to the problem of above-mentioned existence a kind of service channel based between shield tunnel simple in structure, easy construction pumping plant structure of holding concurrently is provided, is intended to optimize the structural shape of service channel, reduce the risk of engineering construction.
The technical scheme that the utility model adopted is: based on the pumping plant structure of holding concurrently of the service channel between shield tunnel; Comprise the passage that is communicated with the up-downgoing tunnel; This channel bottom concreting base plate also is provided with the sunk type pump house; Said tunnel floor is provided with the gutter that is communicated with tunnel and pump house, and it is characterized in that: said gutter is arranged in the ground of floor below.
The coaxial outer casing stainless steel protective casing of said gutter, and the fixing gutter and play the rubber ring of cushioning effect of between coaxial arrangement.
On the outer circumference surface of said rubber ring be with the axis center of circle evenly and one be shaped on one group of projection, this projection is 17.5mm along the height of rubber ring radial direction.
Said rubber ring length is 20mm, and every at a distance from one of 500mm layout.
Said rubber ring internal diameter is 275mm.
Said gutter is 3% to the gradient i that has a down dip near the pump house side.
Said gutter is that steel is moulded gutter, and its internal diameter is 250mm, and external diameter is 273mm.
The internal diameter of said stainless steel protection sleeve pipe is 350mm, and external diameter is 377mm.
The beneficial effect of the utility model is: the utility model cancellation gutter is embedded in the mode in the service channel base plate; Adopt the external structure of gutter, be about to gutter and be arranged in the ground of floor below, base plate is accepted evenly rationally; And its thickness does not receive the restriction of gutter absolute altitude; Optimized the thickness of base plate, thereby avoided digging under the base arrangement dark adverse effect, reduced construction risk shield tunnel; Coaxial successively outward nested rubber ring of gutter and stainless steel protection sleeve pipe, the hard breakdown of gutter has effectively been avoided in protection gutter the time.
Description of drawings
Fig. 1 is the service channel pumping room drainage pipe plan of holding concurrently in the utility model background technology.
Fig. 2 is the sectional drawing that base plate is established the inverted arch structure in the utility model background technology.
Fig. 3 is the A portion enlarged drawing of Fig. 1.
Fig. 4 is the sectional drawing of base plate local subsidence structure in the utility model background technology.
Fig. 5 is the structure chart of the utility model.
Fig. 6 is that the 1-1 of Fig. 5 is to sectional drawing.
Fig. 7 is the structure chart of rubber ring in the utility model.
Fig. 8 is that the 1-1 of Fig. 7 is to sectional drawing.
Fig. 9 is the utility model sleeve structure distortion sketch map.
The specific embodiment
As shown in Figure 5; Present embodiment comprises the passage 2 that is communicated with up-downgoing tunnel 1; This channel bottom concreting base plate 3, and dig in this channel middle and to establish a well and be used to be provided with sunk type pump house 4 makes pump house 4 upper surfaces and said base plate 3 flush; The gutter 5 that is communicated with tunnel 1 bottom and pump house 4 is set in the ground of 3 belows, said floor, and the gradient i that this gutter has a down dip to pump house 4 sides is 3%; This example places gutter outside the base plate 3 fully, and base plate 3 is accepted evenly rationally, and its thickness do not receive the restriction of gutter 5 absolute altitudes, has optimized the thickness of base plate 3, thereby has avoided digging under the base arrangement deeply the adverse effect of shield tunnel, has reduced construction risk.
As shown in Figure 6, be the corrosiveness of obstruct underground water, and guarantee the sealing of structure that this routine gutter 5 adopts steel to mould gutter (DN250), and coaxial outer casing stainless steel protective casing 6 (DN350) to gutter 5; Be fixing gutter 5 simultaneously; And guarantee that the hold concurrently differential settlement of pumping plant structure of service channel does not cause gutter 5 hard breakdowns; Coaxial arrangement ethylene-propylene-diene monomer cushion rubber 7 is fixed between gutter 5 and protective casing 6; Rubber ring 7 length (along the length of axis direction) are 20mm, and every separated 500mm is provided with one.The operating principle of this sleeve structure is: the stainless steel protection sleeve pipe 6 of rigidity can bear the soil pressure and the corrosiveness of the outside soil body, and gutter 5 is played a protective role; The ethylene-propylene-diene monomer cushion rubber 7 that steel is moulded gutter 5 overcoats not only plays fixing effect to gutter 5, and is because the elasticity of rubber ring 7 allows malformation (the malformation limit value is 20mm), as shown in Figure 9 simultaneously, prevents the hard breakdown of gutter 5.In this example, said gutter 5 internal diameters (diameter) are 250mm, and external diameter (diameter) is 273mm; The internal diameter of stainless steel protection sleeve pipe 6 is 350mm, and external diameter is 377mm.
Like Fig. 7, shown in Figure 8; Said rubber ring 7 internal diameters are 275mm; On its outer circumference surface be with the axis center of circle evenly and one be shaped on one group of (in this example being six) projection 7-1; This projection is 17.5mm along the height of rubber ring 7 radial direction, makes that projection 7-1 external surface is 174mm to the distance in rubber ring 7 centers of circle, and promptly the maximum gauge of rubber ring 7 is 348mm.The ethylene propylene diene rubber index is as shown in the table:
The construction sequence of present embodiment is following:
A, adopt the ground reinforcing method to carry out ground stabilization,, then do not need before the running tunnel construction, to carry out, only before the steel pipe sheet punches, carry out if adopt freezing to reinforce to planning to build the service channel pumping plant place soil layer of holding concurrently;
B, employing shield method are accomplished the propelling of interval shield tunnel (being up-downgoing tunnel 1) and the installation of concrete section of jurisdiction and steel pipe sheet 8;
C, plan to build the service channel pumping plant place steel pipe sheet 8 of holding concurrently and punch, and adopt a type Mine Method construction service channel 2, just lining and two linings (base plate two linings are not done earlier), excavate pump house 4 afterwards and perform pump house and just serve as a contrast, build two linings of service channel base plate 3 then;
D, employing pipe jacking construction method construction stainless steel protection sleeve pipe 6 (pushing up the well that is used to be provided with pump house 4) from tunnel 1 bottom, these sleeve pipe two ends are stretched into tunnel 1 bottom and pump house 4 inside respectively;
E, every at a distance from the coaxial sheathed ethylene-propylene-diene monomer cushion rubber 7 of 500mm outside steel is moulded gutter 5, the gutter 5 that will be with rubber ring 7 then passes in stainless steel protective casing 6, makes its two ends stretch into tunnel 1 bottom and pump house 4 inside respectively;
F, construction are used for structures such as anti-drainage facility such as sealing rod and the pump house liner of gutter and pump house joint waterproofing.
If adopt freezing to reinforce, its step is following:
A, employing shield method are accomplished the propelling of interval shield tunnel (being up-downgoing tunnel 1) and the installation of concrete section of jurisdiction and steel pipe sheet 8;
B, adopt freezing to carry out ground stabilization to planning to build the service channel pumping plant place soil layer of holding concurrently;
C, plan to build the service channel pumping plant place steel pipe sheet 8 of holding concurrently and punch, and adopt a type Mine Method construction service channel 2, just lining and two linings (base plate two linings are not done earlier), excavate pump house 4 afterwards and perform pump house and just serve as a contrast, build two linings of service channel base plate 3 then;
D, employing pipe jacking construction method construction stainless steel protection sleeve pipe 6 (pushing up the well that is used to be provided with pump house 4) from tunnel 1 bottom, these sleeve pipe two ends are stretched into tunnel 1 bottom and pump house 4 inside respectively;
E, every at a distance from the coaxial sheathed ethylene-propylene-diene monomer cushion rubber 7 of 500mm outside steel is moulded gutter 5, the gutter 5 that will be with rubber ring 7 then passes in stainless steel protective casing 6, makes its two ends stretch into tunnel 1 bottom and pump house 4 inside respectively;
F, construction are used for structures such as anti-drainage facility such as sealing rod and the pump house liner of gutter and pump house joint waterproofing.
Claims (8)
1. one kind based on the pumping plant structure of holding concurrently of the service channel between shield tunnel; Comprise the passage (2) that is communicated with up-downgoing tunnel (1); This channel bottom concreting base plate (3) also is provided with sunk type pump house (4); Said tunnel (1) bottom is provided with the gutter (5) that is communicated with tunnel (1) and pump house (4), it is characterized in that: said gutter (5) is arranged in the ground of base plate (3) below.
2. according to claim 1 based on the pumping plant structure of holding concurrently of the service channel between shield tunnel; It is characterized in that: the coaxial outer casing stainless steel protective casing of said gutter (5) (6), and the fixing gutter (5) and play the rubber ring (7) of cushioning effect of between coaxial arrangement.
3. according to claim 2 based on the pumping plant structure of holding concurrently of the service channel between shield tunnel; It is characterized in that: on the outer circumference surface of said rubber ring (7) be with the axis center of circle evenly and one be shaped on one group of projection (7-1), this projection is 17.5mm along the height of rubber ring (7) radial direction.
4. according to claim 2 or 3 described it is characterized in that: said rubber ring (7) length is 20mm based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, and whenever arrange one at a distance from 500mm.
5. according to claim 2 or 3 described based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, it is characterized in that: said rubber ring (7) internal diameter is 275mm.
6. according to claim 1 and 2 based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, it is characterized in that: said gutter (5) is 3% to the gradient i that has a down dip near pump house (4) side.
7. according to claim 1 and 2 it is characterized in that: said gutter (5) is moulded gutter for steel based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, and its internal diameter is 250mm, and external diameter is 273mm.
8. according to claim 2 it is characterized in that: the internal diameter of said stainless steel protection sleeve pipe (6) is 350mm based on the pumping plant structure of holding concurrently of the service channel between shield tunnel, and external diameter is 377mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120314429 CN202228089U (en) | 2011-08-25 | 2011-08-25 | Connecting passage and pump station structure based on shield tunnels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120314429 CN202228089U (en) | 2011-08-25 | 2011-08-25 | Connecting passage and pump station structure based on shield tunnels |
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| Publication Number | Publication Date |
|---|---|
| CN202228089U true CN202228089U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120314429 Expired - Lifetime CN202228089U (en) | 2011-08-25 | 2011-08-25 | Connecting passage and pump station structure based on shield tunnels |
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| CN (1) | CN202228089U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322292A (en) * | 2011-08-25 | 2012-01-18 | 中国水电顾问集团华东勘测设计研究院 | Contact tunnel also serving as pump station structure between shield tunnels and construction method thereof |
| CN105114097A (en) * | 2015-08-21 | 2015-12-02 | 中铁第一勘察设计院集团有限公司 | Communication structure system between two pipe tunnels and ventilation evacuating method of communication structure system |
-
2011
- 2011-08-25 CN CN 201120314429 patent/CN202228089U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322292A (en) * | 2011-08-25 | 2012-01-18 | 中国水电顾问集团华东勘测设计研究院 | Contact tunnel also serving as pump station structure between shield tunnels and construction method thereof |
| CN105114097A (en) * | 2015-08-21 | 2015-12-02 | 中铁第一勘察设计院集团有限公司 | Communication structure system between two pipe tunnels and ventilation evacuating method of communication structure system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |