CN218030219U - Two lining end moulds in country rock profile self-adaptation tunnel - Google Patents
Two lining end moulds in country rock profile self-adaptation tunnel Download PDFInfo
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- CN218030219U CN218030219U CN202222045327.3U CN202222045327U CN218030219U CN 218030219 U CN218030219 U CN 218030219U CN 202222045327 U CN202222045327 U CN 202222045327U CN 218030219 U CN218030219 U CN 218030219U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a two lining end moulds in country rock profile self-adaptation tunnel, it includes arc end mould section, lifting baffle and spring assembly, the both ends of arc end mould section are provided with connector and connecting groove respectively, multistage arc end mould section passes through connector and connecting groove connection becomes the arc mould, the arc mould passes through connecting bolt connection and installs on two lining template, the outside of arc end mould section is provided with interior caulking groove, a plurality of spring assembly of interval installation in the interior caulking groove, lifting baffle installs in the outside of arc end mould section, install the only thick liquid adhesive tape between lifting baffle and the arc end mould section, lifting baffle's top exceeds arc end mould section, lifting baffle divide into front bezel and backplate, front bezel and backplate are front and back staggered arrangement, front bezel's the back is fixed with the long back buckle, the back of backplate is fixed with short back buckle, long back buckle and short back buckle all install the support on the spring assembly who corresponds the position. This two lining end moulds can avoid assembling the gap and leak thick liquid and reduce the thick liquid seepage that the gap between two linings and the first lining leads to.
Description
Technical Field
The invention is mainly used in the technical field of tunnel construction equipment, and particularly relates to a surrounding rock profile self-adaptive tunnel two-lining end mold.
Background
At present, the composite lining is widely applied to tunnel engineering in China, and according to the design concept of a new Austrian's method, the secondary lining is a cast concrete or reinforced concrete lining applied on the inner side of a primary support, and the secondary lining and the primary support form the composite lining together.
When arch wall lining in tunnel engineering is constructed, the end is generally spliced and blocked by adopting a wood plate. The construction process comprises the steps of blanking, assembling, bending and fixing the embedded water stop, reinforcing, pouring concrete and disassembling the wood formwork, and the process is complex, high in labor intensity and poor in integrity. Particularly, the buried water stop in the fixing by the bending method is easy to have the problems of buried depth, position, inside or outside, angle inclination and the like of the water stop, the accurate positioning of the position of the buried water stop in the end cannot be ensured, and even the folding and damage conditions occur, so that not only is the concrete at the circumferential construction joint easy to loose and the concrete quality of the end influenced due to the leakage of cement slurry easily caused, but also the slurry flowing out from the wood formwork joint easily pollutes the front inverted arch side wall, and the cleaning difficulty is large; in addition, the end mould of traditional two linings is close to one side of primary support, in order to adapt to the unevenness on the surface of the surrounding rock of the primary support shotcrete surface, the installation process of the traditional wood mould needs to be adjusted repeatedly, the efficiency is low, the turnover use times of the wood mould are few, and the loss of cutting abrasion at every time is large. Later, many units have improved two-end-of-line end forms, and publications have reported some two-end-of-line end form structures, such as:
1. chinese patent: a tunnel two-lining end mold joint structure with a sealing device; application No.: 201810646024.2; and (3) abstract: the invention discloses a joint structure with sealing devices for two lining end molds of a tunnel, which comprises arc-shaped end molds and L-shaped fixing devices, wherein one side of each L-shaped fixing device is fixed on the arc-shaped end mold, the other side of each L-shaped fixing device is fixed on a two lining trolley, a plurality of arc-shaped end molds are spliced adjacent to the arc-shaped end molds to form the two lining end molds, an end mold clamping groove joint detachably connected with the adjacent arc-shaped end molds is arranged between the adjacent arc-shaped end molds, one end of each end mold clamping groove joint is arranged on one arc-shaped end mold, the other end of each end mold clamping groove joint is arranged on the other adjacent arc-shaped end mold, a plurality of layers of sealing devices which are arranged in staggered joints are arranged on one side, close to a primary support, of the arc-shaped end molds, and each layer of sealing device comprises a plurality of sealing brushes which are arranged at intervals. The tunnel two-lining-end mold joint structure with the sealing device avoids slurry leakage of an assembly gap and solves the problem caused by the fact that the surface of primary support sprayed concrete is not smooth.
2. Chinese patent: a tunnel secondary lining reinforced concrete section end mould structure and an installation method; application No.: 201810644860.7; and (3) abstract: the invention discloses a tunnel two-lining reinforced concrete ground section end mould structure which comprises two-lining longitudinal steel bars, an arc-shaped end mould, a middle-buried water stop and a middle-buried water stop fixing device, wherein the arc-shaped end mould is provided with a middle-buried water stop reserved clamping groove and an end mould longitudinal steel bar reserved hole, the middle-buried water stop fixing device comprises two side hooks and a U-shaped groove, one end of each two-lining longitudinal steel bar is arranged in the end mould longitudinal steel bar reserved hole, the hooks are wound on the two-lining longitudinal steel bars, the outer side of the middle-buried water stop is arranged in the middle-buried water stop reserved clamping groove, and the inner side of the middle-buried water stop is arranged in the U-shaped groove. The invention also discloses a tunnel secondary lining reinforced concrete floor section end mould mounting method. The tunnel two-lining reinforced concrete section end mould structure fixes the middle-buried water stop by using the two-lining longitudinal steel bars and the middle-buried water stop fixing device, and ensures the accuracy, smoothness and exposed width of the water stop installation.
3. Chinese patent: adjustable steel end mould of two linings of tunnel arch wall, application number: 201720250514.1; and (3) abstract: the invention discloses a tunnel arch wall two-lining adjustable steel end die, which comprises an outer fixture end die panel (1) and an inner fixture end die panel (5), wherein the upper part of the outer side of the inner fixture end die panel (5) is provided with two hinged seats (3), the hinged seats (3) are provided with U-shaped hinged support arms (2) through hinged bolts (4), and the ends of the U-shaped hinged support arms (2) are welded on the inner side of the bottom of the outer fixture end die panel (1); a buried waterstop fixing groove (9) is reserved between the outer clamp end mould panel (1) and the inner clamp end mould panel (5); two sliding grooves (7) are arranged on the inner fixture end die panel (5) along the radial direction, and the inner fixture end die panel (5) is fixedly arranged on a flange (10) at the end of the two-lining trolley through an adjustable bolt (8). The device is simple, intuitive, easy to understand, easy to realize, flexible and applicable.
Application research shows that the structure of the two-lining end mold used at present is complex to install and cannot be adjusted in a self-adaptive mode along with the contour of surrounding rocks, and serious slurry leakage can be caused between the two-lining end mold and the primary lining due to the fact that the surface of the surrounding rocks on the surface of primary support shotcrete is not smooth.
Disclosure of Invention
The invention aims to provide a surrounding rock profile self-adaptive tunnel two-lining end mould, which not only solves the problem of assembly error between end mould joints, but also avoids assembly gaps to prevent slurry leakage by arranging a connector and a connecting groove between two adjacent arc-shaped end mould sections; set up lifting baffle on arc end mould section, lifting baffle passes through spring assembly and is connected with arc end mould section to the adaptation is just propped up the unevenness on spouting concrete surface country rock surface, and the installation procedure is simple, reduces the thick liquid seepage that the gap between two linings and just lined leads to.
In order to realize the purpose of the invention, the technical scheme is as follows:
the utility model provides a two lining end moulds in country rock profile self-adaptation tunnel, it includes arc end mould section, lifting baffle and spring assembly, the both ends of arc end mould section be provided with connector and connecting groove respectively, multistage arc end mould section passes through connector and connecting groove and connects into the arc mould, the connector of one section arc end mould section is pegged graft in the connecting groove of another section arc end mould section promptly, the arc mould passes through connecting bolt and installs on two lining template, the outside of arc end mould section is provided with the inner caulking groove, a plurality of spring assembly of interval installation in the inner caulking groove, lifting baffle blocking installs the outside at arc end mould section, install the thick liquid adhesive tape that ends between lifting baffle and the arc end mould section, lifting baffle's top exceeds arc end mould section, during operation lifting baffle's top and country rock face contact, lifting baffle divide into preceding baffle and backplate, preceding baffle and backplate are front and back of a set up dislocation arrangement, the back fixedly connected with long back buckle of preceding baffle, the back fixedly connected with short back buckle of backplate, long back buckle and short back buckle all install the support on the spring assembly that corresponds the position, the baffle that spring assembly set up and play the self-adaptation face down when the lifting baffle can the unevenness effect of guaranteeing the height of country rock.
Further preferred is: the spring device comprises a compression spring and a pin shaft, the compression spring is sleeved on the pin shaft in a penetrating mode, a plurality of through holes used for placing the pin shaft are formed in the arc-shaped end die section at the top of the embedded groove, the through holes are formed in a certain position, the spring device, the long back retaining ring and the short back retaining ring are located, the pin shaft is installed in the through holes in a limiting mode, the compression spring is located in the embedded groove, the bottom of the compression spring is in contact with the bottom surface of the embedded groove, and the long back retaining ring and the short back retaining ring are respectively sleeved on the pin shaft at the top of the compression spring in the corresponding positions in a penetrating mode.
Further preferred is: the through hole is internally sleeved with a rubber sleeve used for clamping the pin shaft, and the rubber sleeve is a silica gel sleeve.
The installation steps of the surrounding rock profile self-adaptive tunnel two-lining end mold are simple, two adjacent arc-shaped end mold sections are connected in a mortise-tenon mode, namely, a connector of one arc-shaped end mold section is inserted into a connecting groove of the other arc-shaped end mold section, so that slurry leakage of an assembly gap is avoided; set up lifting baffle on arc end mould section, lifting baffle supports through the spring assembly who sets up on arc end mould section and connects to the adaptation is just propped up the irregularity on spouting concrete surface country rock surface, reduces two linings and the thick liquid seepage that the gap between the lining leads to just.
Drawings
FIG. 1 is a schematic view of an installation structure of a surrounding rock profile adaptive tunnel two-lining end mold;
FIG. 2 is a perspective view of a connection structure of an arc-shaped end mold section and a lifting baffle;
FIG. 3 is a schematic top view of a connection structure of an arc-shaped end mold segment and a lifting baffle;
FIG. 4 is an exploded view of the arcuate end mold segments and the lifting stops;
FIG. 5 is a schematic view of the installation relationship between the arc-shaped end mold segment and the lifting baffle;
FIG. 6 is a schematic view of the installation relationship of the arcuate end mold segments and the secondary bushing mold plates;
FIG. 7 is a schematic view of the working state of the elevating baffle;
FIG. 8 is a schematic view of the spring assembly;
the names corresponding to the sequence numbers in the figure are:
1. an arcuate end mold section; 2. a lifting baffle plate; 3. a connecting bolt; 4. two lining templates; 5. a front baffle; 6. a tailgate; 7. a connector; 8. a connecting groove; 9. a spring device; 10. a grout stopping adhesive tape; 11. a short back buckle ring; 12. a long back snap ring; 13. an embedded groove is formed; 14. surrounding rock surfaces; 15. a compression spring; 16. a pin shaft; 17. and (4) a rubber sleeve.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the following describes the technical solutions clearly and completely with reference to the embodiments.
Example 1
The utility model provides a two lining end moulds in country rock profile self-adaptation tunnel which characterized in that: comprises an arc-shaped end mould section 1, a lifting baffle 2 and spring devices 9, wherein two ends of the arc-shaped end mould section 1 are respectively provided with a connector 7 and a connecting groove 8, the arc-shaped end mould sections 1 are connected into an arc-shaped mould through the connectors 7 and the connecting grooves 8, namely, the connector 7 of one arc-shaped end mould section 1 is inserted into the connecting groove 8 of the other arc-shaped end mould section 1, the arc-shaped mould is connected and installed on a two-lining mould plate 4 through a connecting bolt 3, the outer side of the arc-shaped end mould section 1 is provided with an inner embedded groove 13, the three spring devices 9 are installed in the inner embedded groove 13 at intervals, the lifting baffle 2 is sealed and installed on the outer side of the arc-shaped end mould section 1, install between lifting baffle 2 and the arc end mould section 1 and end thick liquid adhesive tape 10, lifting baffle 2's top exceeds arc end mould section 1, during operation lifting baffle 2's top and the contact of rock surface 14, lifting baffle 2 divide into two preceding baffles 5 and a backplate 6, staggered arrangement around two preceding baffles 5 and a backplate 6 are, backplate 6 is located between two preceding baffles 5, the back fixedly connected with long back buckle 12 of preceding baffle 5, the back fixedly connected with short back buckle 11 of backplate 6, long back buckle 12 and short back buckle 11 all the erection bracing on the spring assembly 9 that corresponds the position.
The spring device 9 comprises a compression spring 15 and a pin shaft 16, the compression spring 15 is sleeved on the pin shaft 16 in a penetrating mode, three through holes for placing the pin shaft 16 are formed in the arc-shaped end die section 1 at the top of the embedded groove 13, the pin shaft 16 is installed in the through holes in a limiting mode, the compression spring 15 is located in the embedded groove 13, the bottom of the compression spring 15 is in contact with the bottom surface of the embedded groove 13, and the long back retaining ring 12 and the short back retaining ring 11 are sleeved on the pin shaft 16 at the top of the compression spring 15 in corresponding positions in a penetrating mode respectively.
Example 2
The distinguishing features from example 1 are: the through hole is internally sleeved with a rubber sleeve 17 used for clamping the pin shaft 16, the rubber sleeve 17 is a silica gel sleeve, and the rubber sleeve 17 can prevent the pin shaft 16 from slipping from the through hole.
The installation method of the surrounding rock profile self-adaptive tunnel two-lining end mold comprises the following steps:
the compression spring 15 of the spring device 9 is installed in the embedded groove 13 of the arc-shaped end mould section 1, the lifting baffle plate 2 is buckled on a pin shaft 16 at the top of the compression spring 15 of the spring device 9 through a back buckle ring, the arc-shaped end mould section 1 is connected with the connecting groove 8 into a whole through the connecting head 7, the arc-shaped end mould section is connected with the two lining mould plates 4 through the connecting bolts 3, the installation is completed, and the two lining mould plates 4 are installed on the two lining trolleys. During the use, earlier be connected a set of arc end mould section 1 through connecting bolt 3 with two lining template 4, adjacent arc end mould section 1 screws up connecting bolt 3 after being fixed firm with connecting groove 8 through connector 7 again, and bottom end department adopts only to starch the adhesive tape to seal closely knit can at last, and the gap between lifting baffle 2 and arc end mould section 1 also seals through only starch adhesive tape 10.
The above description is not intended to limit the present application, and the present application is not limited to the above examples, and those skilled in the art should understand that they can make various changes, modifications, additions or substitutions within the spirit and scope of the present application.
Claims (3)
1. The utility model provides a two liner end moulds in country rock profile self-adaptation tunnel which characterized in that: including arc end mould section (1), lifting baffle (2) and spring assembly (9), the both ends of arc end mould section (1) be provided with connector (7) and connecting groove (8) respectively, multistage arc end mould section (1) connects into the arc mould through connector (7) and connecting groove (8), the arc mould passes through connecting bolt (3) connection and installs on two lining template (4), the outside of arc end mould section (1) is provided with interior caulking groove (13), a plurality of spring assembly (9) of interval installation in embedding groove (13), lifting baffle (2) block is installed in the outside of arc end mould section (1), install between lifting baffle (2) and arc end mould section (1) and end the thick liquid adhesive tape (10), the top of lifting baffle (2) exceeds arc end mould section (1), lifting baffle (2) divide into preceding baffle (5) and backplate (6), preceding baffle (5) and backplate (6) are staggered arrangement, the back fixedly connected with of preceding baffle (5) is connected with long back of the buckle (12) and all supports the back of the short buckle (11) and the back of the body and the back of the retaining ring (11) and the back of the retaining ring (11) and support the back ring device and all be connected with the short retaining ring (11).
2. The wall rock profile adaptive tunnel two-lining-end mold according to claim 1, wherein: spring assembly (9) including compression spring (15) and round pin axle (16), compression spring (15) wear to overlap on round pin axle (16), arc end mould section (1) at embedded groove (13) top on begin to have a plurality of through-holes that are used for laying round pin axle (16), round pin axle (16) spacing installation is in the through-hole, compression spring (15) are located embedded groove (13), the bottom of compression spring (15) and the bottom surface contact of embedded groove (13), long back buckle ring (12) and short back buckle ring (11) wear to overlap respectively on round pin axle (16) at the compression spring (15) top that corresponds the position.
3. The wall rock profile adaptive tunnel two-lining-end mold according to claim 2, wherein: and a rubber sleeve (17) used for clamping the pin shaft (16) is sleeved in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222045327.3U CN218030219U (en) | 2022-08-04 | 2022-08-04 | Two lining end moulds in country rock profile self-adaptation tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222045327.3U CN218030219U (en) | 2022-08-04 | 2022-08-04 | Two lining end moulds in country rock profile self-adaptation tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN218030219U true CN218030219U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222045327.3U Active CN218030219U (en) | 2022-08-04 | 2022-08-04 | Two lining end moulds in country rock profile self-adaptation tunnel |
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| Country | Link |
|---|---|
| CN (1) | CN218030219U (en) |
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- 2022-08-04 CN CN202222045327.3U patent/CN218030219U/en active Active
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