CN112282841A - Rapid drainage and slag discharge system for full-section tunnel and construction method - Google Patents
Rapid drainage and slag discharge system for full-section tunnel and construction method Download PDFInfo
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- CN112282841A CN112282841A CN202011394731.0A CN202011394731A CN112282841A CN 112282841 A CN112282841 A CN 112282841A CN 202011394731 A CN202011394731 A CN 202011394731A CN 112282841 A CN112282841 A CN 112282841A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Abstract
The invention discloses a rapid drainage and slag removal system for a full-section tunnel, which can rapidly drain and remove slag in the tunnel; meanwhile, the invention also discloses a full-section tunnel rapid drainage and slag removal construction method, which is characterized in that the flow in the aqueducts is controlled, so that the tunnel slag on the inverted arch filling layer is flushed to the side drainage ditch through accumulated water, and rapid drainage and slag removal are carried out through the side drainage ditch; effectively avoid the tunnel sediment in the tunnel to pile up or ponding, and then improve tunnel efficiency of construction.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly relates to a full-section tunnel rapid drainage and slag removal system and a construction method.
Background
With the development of the traffic construction business of China, more and more tunnels are built, with the improvement of traffic planning requirements, the cross section of the tunnel is gradually enlarged, the tunnel with the large cross section is generally excavated by one-step forming through smooth blasting, then primary support and secondary lining are carried out, and large tunnel slag generated during blasting can be rapidly transported out of the tunnel through machines such as an excavator. But to the follow-up secondary lining construction and the production of invert filling layer and spread the less tunnel sediment at invert filling layer top when constructing, adopt large-scale machinery to transport the cost of arranging the sediment too high, and the efficiency through manual cleaning is very low again, and then has delayed whole tunnel construction process.
Disclosure of Invention
The invention aims to provide a full-section tunnel rapid drainage and slag removal system which can rapidly drain and remove slag in a tunnel. Meanwhile, the invention also discloses a full-section tunnel rapid drainage and slag discharge construction method, which realizes the flushing of tunnel slag by controlling the flow direction of accumulated water in the water guide pipe and realizes rapid drainage and slag discharge.
The invention is realized by the following technical scheme:
a full-section tunnel rapid drainage and slag removal system is characterized in that a primary support and a secondary lining are sequentially arranged inside a tunnel from outside to inside, an inverted arch filling layer is arranged at the top of an inverted arch at the bottom of the tunnel, the rapid drainage and slag removal system comprises a water guide pipe arranged between the primary support and the secondary lining along the profile of the section of the tunnel, side drainage ditches are arranged on two sides of the inverted arch filling layer along the length direction of the tunnel, and a plurality of side drainage pipes which are connected with the water guide pipe and lead to the side drainage ditches are linearly arranged at the positions, close to the inverted arch filling layer, of the water guide pipe along the length direction of the; the tunnel is characterized in that a middle drainage pipe communicated with the water guide pipe is arranged at the top of the tunnel, a middle extension pipe is connected to the water outlet end of the middle drainage pipe, side extension pipes are arranged on two sides of the middle extension pipe, the water outlet end of the middle extension pipe extends to the upper portion of the middle of the inverted arch filling layer, and the water outlet end of the side extension pipe extends to the top of the side drainage ditch.
It should be noted that, the tunnel face is blasted and excavated, and then slag is sequentially removed in advance, and large-scale tunnel slag such as stones generated by blasting is removed from the tunnel. The rapid drainage and slag discharge system aims at small tunnel slag such as powder slag and the like which are remained at the top of the inverted arch filling layer after the secondary lining and the inverted arch filling layer are completed.
Through opening middle part drain pipe and middle part extension pipe at first for ponding in the aqueduct flows to the middle part top of invert filling layer through middle part drain pipe and middle part extension pipe, erodees the tunnel sediment at invert filling layer top towards in the side escape canal of both sides. Then close middle part drain pipe and middle part extension pipe and open side drain pipe and side extension pipe, ponding in the aqueduct at this moment directly gets into the side escape canal through side drain pipe and side extension pipe, erodees the tunnel sediment in the side escape canal outside the tunnel along the side escape canal simultaneously, realizes the row sediment of synchronous drainage.
In order to better realize the invention, a water collecting pit is further arranged at one end of the side drainage ditch extending to the outer side of the tunnel, a water return pipe is arranged in the water collecting pit, and the water return end of the water return pipe extends to the inner side of the tunnel and is close to the tunnel face and leads to the side drainage ditch.
When the inside tunnel sediment of side escape canal is deposited more, only rely on the ponding of reserving in the aqueduct can not effectively wash away the tunnel sediment when, can be through the wet return that has the water pump this moment with the ponding suction backward flow in the sump pit to the one end that the side escape canal is close to the face, has increaseed promptly and has washed away rivers, and then washes out the tunnel sediment in the side escape canal.
In order to better implement the invention, further, the top of the water collecting pit is provided with a multi-layer grid.
In order to better realize the invention, the invention further comprises an auxiliary drainage ditch arranged on one side of the side drainage ditch, wherein a plurality of drainage holes communicated with the side drainage ditch are linearly arranged on one side of the auxiliary drainage ditch close to the side drainage ditch.
In order to better implement the present invention, further, the drain holes are disposed obliquely.
In order to better realize the invention, a waterproof layer is laid between the water guide pipe and the secondary lining.
A full-section tunnel rapid drainage and slag removal construction method is realized based on the rapid drainage and slag removal system and comprises the following steps:
step A, closing side drain pipes and opening a middle drain pipe, closing side extension pipes and opening a middle extension pipe at the same time, so that accumulated water in the tunnel flows to the upper part of the middle part of the inverted arch filling layer through the middle drain pipe and the middle extension pipe, and the tunnel slag on the inverted arch filling layer is flushed to the side drain ditches on the two sides to realize primary slag flushing;
step B, after the primary slag flushing is finished, closing the middle drainage pipe and the middle extension pipe and opening the side drainage pipe and the side extension pipe, so that accumulated water in the water guide pipe flows into the side drainage ditch for drainage, and meanwhile, washing the tunnel slag in the side drainage ditch to the outside of the tunnel for drainage and slag discharge;
and step C, when the auxiliary drainage ditch discharges water, opening a water return pipe and returning accumulated water in the water collection pit to one end of the side drainage ditch close to the tunnel face through a water pump, and performing secondary slag flushing on the side drainage ditch.
In order to better realize the method, further, before the step A, blasting construction of the tunnel face is carried out, firstly, forepoling is carried out on surrounding rocks around the tunnel face of the tunnel, then blastholes are uniformly arranged on the edge of the tunnel face, and smooth blasting is carried out, so that the tunnel face is excavated and formed at one time.
In order to better realize the invention, further, after the tunnel face is excavated and formed, a system anchor rod and a grouting anchor rod are applied to the top of the excavation section, and the steel fiber concrete is sprayed to the top of the excavation section for grouting to form the primary support.
In order to better realize the invention, a water guide pipe is laid on the surface of the primary support, a waterproof layer is applied to one side of the water guide pipe close to the interior of the tunnel, and a secondary lining is applied to one side of the waterproof layer close to the interior of the tunnel.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the invention, the middle drainage pipe and the middle extension pipe which are connected with the water guide pipe are arranged, so that accumulated water in the water guide pipe flows to the middle part of the inverted arch filling layer, and the tunnel slag on the inverted arch filling layer is flushed into the side drainage ditches at two sides of the inverted arch filling layer, so that the efficient and convenient cleaning of the tunnel slag on the inverted arch filling layer is realized;
(2) according to the invention, the side drainage pipe and the side extension pipe which are communicated with the water guide pipe are arranged, the middle drainage pipe and the middle extension pipe are closed, and after the side drainage pipe and the side extension pipe are opened, accumulated water in the water guide pipe can be conveniently guided to the side drainage ditch through the side drainage pipe and the side extension pipe for rapid drainage, and meanwhile, tunnel slag in the side drainage ditch is flushed through the drained accumulated water, so that slag discharge is realized while drainage is carried out;
(3) according to the invention, the water collecting pit is arranged at one end of the side drainage ditch positioned outside the tunnel to collect the drained accumulated water, and the water return pipe with the water pump is arranged in the water collecting pit, so that when the tunnel slag in the side drainage ditch is accumulated, the accumulated water in the water collecting pit can be returned to one end of the side drainage ditch close to the tunnel face through the water return pipe, the water flow in the side drainage ditch is further increased, the tunnel slag in the side drainage ditch is effectively flushed out, and the side drainage ditch is prevented from being blocked;
(4) according to the invention, the auxiliary drainage ditch is arranged on one side of the side drainage ditch and is communicated with the side drainage ditch through the drainage hole, when the water level in the side drainage ditch exceeds the height of the drainage hole, accumulated water in the side drainage ditch enters the auxiliary drainage ditch through the drainage hole to realize auxiliary drainage, and the overflow of the accumulated water in the side drainage ditch is avoided.
Drawings
FIG. 1 is a schematic structural view of a rapid drainage and slag removal system;
fig. 2 is a sectional view taken along the line a of fig. 1.
Wherein: 1-a water conduit; 2-side drainage ditch; 3-side drain pipe; 4-middle drain pipe; 5-a middle extension tube; 6-side extension tube; 7-a water collecting pit; 8-a water return pipe; 9-auxiliary drainage ditch; 01-primary support; 02-secondary lining; 03-inverted arch filling layer.
Detailed Description
Example 1:
as shown in fig. 1, a primary support 01 and a secondary lining 02 are sequentially arranged inside a tunnel from outside to inside, an inverted arch filling layer 03 is arranged at the top of an inverted arch at the bottom of the tunnel, the rapid drainage and slag removal system comprises a plurality of water guide pipes 1 linearly arranged between the primary support 01 and the secondary lining 02 along the length direction of the tunnel, side drainage ditches 2 are arranged on two sides of the inverted arch filling layer 03 along the length direction of the tunnel, and a plurality of side drainage pipes 3 connected with the water guide pipes 1 and leading to the side drainage ditches 2 are linearly arranged at the positions, close to the inverted arch filling layer 03, of the water guide pipes 1 along the length direction of the tunnel; the top in tunnel is provided with middle part drain pipe 4 with aqueduct 1 intercommunication, the play water end of middle part drain pipe 4 is connected with middle part extension pipe 5, the both sides of middle part extension pipe 5 are provided with side extension pipe 6, the play water end of middle part extension pipe 5 extends to invert filling layer 03 middle part top, the play water end of side extension pipe 6 extends to 2 tops in side escape canal.
All be provided with the valve of control pipeline break-make on side drain pipe 3, middle part drain pipe 4, middle part extension pipe 5, the side extension pipe 6, side drain pipe 3, middle part drain pipe 4, middle part extension pipe 5, the side extension pipe 6 is all in the closed condition initially. When carrying out the drainage and arranging sediment, at first open middle part drain pipe 4 and middle part extension pipe 5, ponding in the tunnel top aqueduct 1 flows to invert filling layer 03 middle part top through middle part drain pipe 4 and middle part extension pipe 5 this moment, erodees the tunnel sediment on the invert filling layer 03 to the side escape canal 2 of invert filling layer 03 both sides in, utilizes tunnel ponding to erode the tunnel sediment on the invert filling layer 03, avoids artifical scarfing cinder.
The tunnel sediment erodees back in 2 to the side escape canal, close middle part drain pipe 4 and middle part extension pipe 5, open side drain pipe 3 simultaneously, side extension pipe 6, the ponding at 1 top of aqueduct this moment directly flows in side escape canal 2 through side extension pipe 6, the ponding of 1 both sides bottom of aqueduct directly flows in side escape canal 2 through side drain pipe 3, the realization is to the high-efficient discharge of ponding in the tunnel, the ponding that gets into side escape canal 2 simultaneously carries out the secondary and erodees to the inside tunnel sediment in side escape canal 2, erode the tunnel sediment outside the tunnel along side escape canal 2, realize the drainage and arrange the sediment.
Example 2:
this embodiment is further optimized on the basis of embodiment 1, as shown in fig. 1 and fig. 2, a water collecting pit 7 is disposed at one end of the side drainage ditch 2 extending to the outside of the tunnel, a water return pipe 8 is disposed in the water collecting pit 7, and a water return end of the water return pipe 8 extends to the inside of the tunnel near the tunnel face and leads to the side drainage ditch 2.
Ponding through side escape canal 2 finally flows and keeps in the outside sump pit 7 in the tunnel, when the tunnel sediment in side escape canal 2 is more, open the water pump on the wet return 8, with the inside ponding suction of sump pit 7 backward flow to the one end that side escape canal 2 is close to the tunnel face, carry out the secondary through the ponding of backward flow to the inside tunnel sediment in side escape canal 2 and erode, avoid the tunnel sediment to pile up in a large number in side escape canal 2 and lead to side escape canal 2 to block up.
Further, the top of sump pit 7 is provided with the multilayer grid, filters the tunnel sediment of ponding through the multilayer grid, avoids the tunnel sediment to get into sump pit 7. The multilayer grid is detachable construction, and the top of multilayer grid is provided with the lug, and when the tunnel sediment on the multilayer grid was piled up, it can with the tunnel sediment of piling up on it to lift by crane the multilayer grid and clear up through outside lifting device.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the embodiment is further optimized on the basis of the above embodiment 1 or 2, and as shown in fig. 1, the embodiment further includes an auxiliary drainage ditch 9 disposed on one side of the side drainage ditch 2, and a plurality of drainage holes communicated with the side drainage ditch 2 are linearly disposed on one side of the auxiliary drainage ditch 9 close to the side drainage ditch 2.
The top of auxiliary drainage ditch 9 is passed through the wash port and is connected with the top of side escape ditch 2, and when the water level in the side escape ditch 2 exceeded the wash port height, ponding in the side escape ditch 2 got into auxiliary drainage ditch 9 through the wash port promptly, avoided the ponding in the side escape ditch 2 to spill over.
Simultaneously, through the water yield of monitoring auxiliary drainage ditch 9, when the water yield in auxiliary drainage ditch 9 is great, it explains that the inside tunnel sediment of side escape ditch 2 more causes 2 ponding flows of side escape ditch to slow down. At this moment, the water pump on the water return pipe 8 can be opened to carry out backflow secondary washing on the side drainage ditch 2, so that the tunnel slag is prevented from being accumulated in the side drainage ditch 2 in a large amount.
Further, the wash port slope sets up, and the high-end of wash port is connected with top one side of side escape canal 2, and the low side of wash port is connected with top one side of auxiliary escape canal 9, sets up the wash port through the slope, can make the ponding in the side escape canal 2 get into auxiliary escape canal 9 sooner, avoids the ponding in the side escape canal 2 to spill over.
Further, the inclination angle of the drain hole is 45 degrees.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
the embodiment is further optimized on the basis of any one of the embodiments 1 to 3, a waterproof layer is laid between the water guide pipe 1 and the secondary lining 02, and the waterproof layer covers one side of the water guide pipe 1 close to the inside of the tunnel, so that water seepage of the water guide pipe 1 is effectively avoided.
The other parts of this embodiment are the same as those of embodiments 1 to 3, and thus are not described again.
Example 5:
a full-section tunnel rapid drainage and slag removal construction method is realized based on the rapid drainage and slag removal system and comprises the following steps:
step A, closing the side drain pipes 3 and opening the middle drain pipe 4, closing the side extension pipes 6 and opening the middle extension pipe 5 at the same time, so that accumulated water in the tunnel flows to the upper part of the middle part of the inverted arch filling layer 03 through the middle drain pipe 4 and the middle extension pipe 5, and the tunnel slag on the inverted arch filling layer 03 is flushed to the side drain ditches 2 at two sides to realize one-time slag flushing;
the top of the inverted arch filling layer 03 is divided into a plurality of areas along the length direction of the tunnel, and a middle extension pipe 5 and a side extension pipe 6 are arranged corresponding to each area. The middle extension pipe 5 and the side extension pipe 6 are flexible pipes, and the lengths of the middle extension pipe 5 and the side extension pipe 6 are required to ensure that the movable areas can cover the top area of the current inverted arch filling layer 03. Open middle part drain pipe 4 and middle part extension pipe 5 in proper order according to the direction from the tunnel face directional tunnel export, guarantee that the tunnel sediment of inverted arch filling layer 03 is washed in proper order into side escape canal 2 according to the direction from the face directional tunnel export. Use middle part extension pipe 5 and side extension pipe 6 that are closest to the face as first order, all the other middle part extension pipes 5 and side extension pipe 6 are according to the directional tunnel export's of face direction in proper order to decide the grade, and current one-level middle part extension pipe 5 and side extension pipe 6 are washed the tunnel sediment in the top region of current inverted arch filling layer 03 clean back, open back one-level middle part extension pipe 5 and side extension pipe 6 again, and until all wash away the tunnel sediment at inverted arch filling layer 03 top.
Step B, after the primary slag flushing is finished, closing the middle drain pipe 4 and the middle extension pipe 5 and opening the side drain pipes 3 and the side extension pipes 6, so that accumulated water in the water guide pipe 1 flows into the side drain ditches 2 for draining, and meanwhile, the tunnel slag in the side drain ditches 2 is flushed to the outside of the tunnel for draining and deslagging;
and step C, when the auxiliary drainage ditch 9 discharges water, the water return pipe 8 is opened, accumulated water in the water collection pit 7 is pumped back to one end, close to the tunnel face, of the side drainage ditch 2 through the water pump, and secondary slag flushing is carried out on the side drainage ditch 2.
Example 6:
in this embodiment, further optimization is performed on the basis of any one of the embodiments 1 to 3, and before the step a, blasting construction of the tunnel face of the tunnel is performed, in which firstly surrounding rocks around the tunnel face of the tunnel are supported in advance, and then blastholes are uniformly arranged at the edge of the tunnel face, and smooth blasting is performed to form the tunnel face by one-time excavation.
Before blasting, the surrounding geology of the face needs to be explored to evaluate the surrounding rock strength of the face, and the surrounding rock of the face is supported in advance according to the surrounding rock strength, so that the safety level of the surrounding rock is improved, and the stability of the surrounding rock is enhanced. Then setting blast holes at the edge of the face, and then carrying out smooth blasting to ensure that the face is blasted and excavated for molding at one time.
The advanced supporting step is that firstly a plurality of advanced reinforcing anchor rods are arranged on the tunnel face, the advanced reinforcing anchor rods move horizontally, then a layer of concrete is sprayed on the tunnel face to ensure the stability of the tunnel face, and the advanced reinforcing anchor rods are made of glass fiber materials, are 3-5m in length and are 20mm in diameter.
Example 7:
in this embodiment, the primary support 01 is further optimized on the basis of any one of the embodiments 1 to 3, after the tunnel face is excavated and formed, the top of the excavation section is provided with a system anchor rod and a grouting anchor rod, and the top of the excavation section is sprayed with steel fiber concrete and then is grouted.
Grouting the periphery of the face surrounding rock through a grouting anchor rod to form a grouting reinforcing ring, so that the bearing capacity of the face surrounding rock is enhanced; the grouting anchor rod adopts a self-advancing grouting anchor rod, and the length of the grouting anchor rod is 3 m; the system anchor rod adopts the twisted steel, and the diameter is 20 mm.
Example 8:
in this embodiment, a water guide pipe 1 is laid on the surface of the primary support 01, a waterproof layer is applied to the side of the water guide pipe 1 near the inside of the tunnel, and a secondary lining 02 is applied to the side of the waterproof layer near the inside of the tunnel.
The water guide pipe 1 is a steel pipe with the diameter of 30mm, and the water guide pipe 1 is provided with a water inlet hole; the side drain pipe 3 adopts a PVC pipe with the diameter of 20 mm.
The secondary lining 02 is fabricated by lining sheets, which are connected by bolts.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A rapid drainage and slag discharge system for a full-section tunnel is characterized by comprising a water guide pipe (1) arranged between a primary support (01) and a secondary lining (02) along the profile of the section of the tunnel, wherein a side drainage ditch (2) is formed in each side of the inverted arch filling layer (03) along the length direction of the tunnel, and a plurality of side drainage pipes (3) connected with the water guide pipe (1) and leading to the side drainage ditches (2) are linearly arranged in the position, close to the inverted arch filling layer (03), of the water guide pipe (1) along the length direction of the tunnel; the top in tunnel is provided with middle part drain pipe (4) with aqueduct (1) intercommunication, the play water end of middle part drain pipe (4) is connected with middle part extension pipe (5), the both sides of middle part extension pipe (5) are provided with side extension pipe (6), the play water end of middle part extension pipe (5) extends to invert filling layer (03) middle part top, the play water end of side extension pipe (6) extends to side escape canal (2) top.
2. The rapid drainage and slag discharge system for the full-section tunnel according to claim 1, wherein a water collection pit (7) is provided at one end of the side drainage ditch (2) extending to the outside of the tunnel, a water return pipe (8) is provided in the water collection pit (7), and a water return end of the water return pipe (8) extends to the inside of the tunnel near the tunnel face and is open to the side drainage ditch (2).
3. The rapid drainage and slag discharge system for the full-face tunnel according to claim 2, characterized in that the top of the water collecting pit (7) is provided with a multi-layer grid.
4. The rapid drainage and slag removal system for the full-section tunnel according to any one of claims 1 to 3, further comprising an auxiliary drainage ditch (9) arranged at one side of the side drainage ditch (2), wherein a plurality of drainage holes communicated with the side drainage ditch (2) are linearly arranged at one side of the auxiliary drainage ditch (9) close to the side drainage ditch (2).
5. The rapid drainage and slag removal system for full-face tunnels according to claim 4, wherein the drainage holes are arranged obliquely.
6. The rapid water and slag discharging system for the full-face tunnel according to any one of claims 1 to 3, wherein a waterproof layer is laid between the water guide pipe (1) and the secondary lining (02).
7. A full-section tunnel rapid drainage and slag discharge construction method is realized based on the rapid drainage and slag discharge system of claim 1, and is characterized by comprising the following steps:
step A, closing the side drainage pipes (3) and opening the middle drainage pipe (4), closing the side extension pipes (6) and opening the middle extension pipe (5) at the same time, so that accumulated water in the tunnel flows to the upper part of the middle part of the inverted arch filling layer (03) through the middle drainage pipe (4) and the middle extension pipe (5), and the tunnel slag on the inverted arch filling layer (03) is flushed to the side drainage ditches (2) at two sides for one-time slag flushing;
step B, after the primary slag flushing is finished, closing the middle drain pipe (4) and the middle extension pipe (5) and opening the side drain pipe (3) and the side extension pipe (6), so that accumulated water in the water guide pipe (1) flows into the side drainage ditch (2) for drainage, and meanwhile, flushing tunnel slag in the side drainage ditch (2) to the outside of the tunnel for drainage and slag discharging;
and step C, when the auxiliary drainage ditch (9) discharges water, a water return pipe (8) is opened, accumulated water in the water collection pit (7) is pumped back to one end, close to the tunnel face, of the side drainage ditch (2) through a water pump, and secondary slag flushing is carried out on the side drainage ditch (2).
8. The method as claimed in claim 7, wherein the blasting of the tunnel face is performed before step a, and the surrounding rock around the tunnel face is supported in advance, and then the blast holes are uniformly arranged at the edge of the tunnel face and the smooth blasting is performed to form the tunnel face by one-step excavation.
9. The rapid drainage and slag removal construction method for the full-face tunnel according to claim 8, wherein after the tunnel face is excavated and formed, a system anchor rod and a grouting anchor rod are applied to the top of the excavated section, and grouting is performed after steel fiber concrete is sprayed to the top of the excavated section, so as to form a primary support (01).
10. The rapid drainage and slag removal construction method for the full-face tunnel according to claim 9, wherein a water guide pipe (1) is laid on the surface of the primary support (01), a waterproof layer is applied to one side of the water guide pipe (1) close to the interior of the tunnel, and a secondary lining (02) is applied to one side of the waterproof layer close to the interior of the tunnel.
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| CN202011394731.0A CN112282841B (en) | 2020-12-03 | 2020-12-03 | Rapid drainage and slag discharge system for full-section tunnel and construction method |
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| CN202011394731.0A CN112282841B (en) | 2020-12-03 | 2020-12-03 | Rapid drainage and slag discharge system for full-section tunnel and construction method |
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| CN112282841B CN112282841B (en) | 2022-07-19 |
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| KR100689968B1 (en) * | 2005-09-30 | 2007-03-08 | 박재현 | 2-arch tunnel and method for constructing the same |
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| CN104806270A (en) * | 2015-05-09 | 2015-07-29 | 西安科技大学 | Double-arch tunnel modularized middle wall with waterproofing and draining functions and construction method thereof |
| CN110700851A (en) * | 2019-10-14 | 2020-01-17 | 中铁第四勘察设计院集团有限公司 | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design |
| CN111456754A (en) * | 2020-04-05 | 2020-07-28 | 中铁二院工程集团有限责任公司 | Auxiliary tunnel structure for left-right separation tunnel and construction method thereof |
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2020
- 2020-12-03 CN CN202011394731.0A patent/CN112282841B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100689968B1 (en) * | 2005-09-30 | 2007-03-08 | 박재현 | 2-arch tunnel and method for constructing the same |
| CN103195440A (en) * | 2013-04-03 | 2013-07-10 | 中铁隧道勘测设计院有限公司 | Three-layer-structure subway double-line single-pipe circular tunnel |
| CN104806270A (en) * | 2015-05-09 | 2015-07-29 | 西安科技大学 | Double-arch tunnel modularized middle wall with waterproofing and draining functions and construction method thereof |
| CN110700851A (en) * | 2019-10-14 | 2020-01-17 | 中铁第四勘察设计院集团有限公司 | Single-hole double-line jet fan tunnel section based on urban D-type vehicle clearance design |
| CN111456754A (en) * | 2020-04-05 | 2020-07-28 | 中铁二院工程集团有限责任公司 | Auxiliary tunnel structure for left-right separation tunnel and construction method thereof |
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| CN112282841B (en) | 2022-07-19 |
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