CN211343018U - Fixing device for transverse drain pipe of tunnel - Google Patents
Fixing device for transverse drain pipe of tunnel Download PDFInfo
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- CN211343018U CN211343018U CN201921500277.5U CN201921500277U CN211343018U CN 211343018 U CN211343018 U CN 211343018U CN 201921500277 U CN201921500277 U CN 201921500277U CN 211343018 U CN211343018 U CN 211343018U
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Abstract
The utility model discloses a tunnel transverse drainage pipe fixing device relates to tunnel drainage system construction field. One embodiment includes: the device comprises a rectangular steel plate in the horizontal direction, a lifting piece fixed on the outer side surface of the rectangular steel plate, and two arc-shaped steel plates in the vertical direction respectively fixed on the front side and the rear side of the rectangular steel plate, wherein the arc-shaped steel plates are fixedly connected with the long sides of the rectangular steel plate; the length and the width of the fixing device are respectively equal to those of the rectangular steel plate, the height of the fixing device is equal to that of the arc-shaped steel plate, and the arc-shaped edge of the arc-shaped steel plate is matched with the concrete side wall.
Description
Technical Field
The utility model relates to a tunnel construction field especially relates to a tunnel drainage system appurtenance.
Background
The tunnel excavation has changed groundwater runoff way, and the tunnel probably becomes the new drainage channel of groundwater, and groundwater infiltration tunnel will increase the construction degree of difficulty of tunnel, influence construction quality. The long-term water seepage of the tunnel influences the durability of the tunnel, and reduces the service efficiency and the service life of various facilities in the tunnel. Therefore, in the design of the tunnel lining structure, a perfect drainage system is required to prevent the damage of underground water to the tunnel.
In implementing the present invention, the applicant has found that there are at least the following problems in the prior art:
in the tunnel construction process, the elevation and the gradient of the longitudinal drainage pipe can not meet the design requirements in the construction process, and the smoothness of water flow is difficult to ensure. When the transverse water guide pipe is used, an inverted arch filling surface is usually reserved on the transverse water guide pipe and then the transverse water guide pipe is connected with the longitudinal water discharge pipe through the tee joint, so that the situation that the joint is obviously protruded, infirm, staggered and not easy to discharge water or even cause water seepage is easily caused.
In addition, when the concrete is applied according to the traditional construction method, the position of the transverse water guide pipe is not easy to fix due to the impact force of the concrete in the step of pouring the concrete, so that the difficulty in water drainage due to the fact that the joint of the transverse water guide pipe and the longitudinal water drainage pipe is loosened and misplaced is further aggravated. And more seriously, may also cause rework or repair.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a tunnel transverse drainage pipe fixing device and construction method can effectively protect the longitudinal drainage pipe when pouring the inverted arch and filling. The linear shape of the transverse drain pipe is ensured to be smoothly connected with the longitudinal drain pipe, the phenomenon that the three-way joint is bulged is effectively prevented, and the quality of the joint of the transverse drain pipe is improved.
To achieve the above object, according to an aspect of the embodiment of the present invention, there is provided a tunnel transverse drain pipe fixing device, including: the steel plate comprises a top surface, a front side surface, a left side surface and a right side surface, wherein the top surface is a rectangular steel plate, the left side surface and the right side surface are arc-shaped steel plates and are respectively fixedly connected with the long side of the rectangular steel plate, and the front side surface is fixedly connected with the short side of the rectangular steel plate; the top surface, the front side surface, the left side surface and the right side surface enclose to form a semi-closed three-dimensional fan-shaped structure; the front side surface is used as a first positioning piece, and a second positioning piece is arranged in the fixing device; an inspection hole is arranged on the top surface, and the position of the transverse drain pipe is corrected through the inspection hole; the length and the width of the fixing device are respectively equal to those of the rectangular steel plate, the height of the fixing device is equal to that of the arc-shaped steel plate, the arc-shaped edge of the arc-shaped steel plate is matched with the concrete side wall, and the surface of the steel plate is coated with a release agent for lubricating treatment.
Optionally, a transverse drain pipe clamping groove is formed in the lower edge of the first positioning piece, and the clamping groove is in an upward-protruding arc shape matched with the transverse drain pipe; the second positioning piece is fixedly connected with the left side face and the right side face respectively and is provided with an arc-shaped section which is matched with the shape of the transverse drainage pipe and protrudes upwards.
Optionally, the pull-up member is made of steel bar or steel plate.
Optionally, the shape of the pull member is U-shaped, circular, semi-circular, square or other shape that facilitates pulling by hand.
Optionally, the shape of the inspection hole is circular, oval, square or other shape that facilitates viewing and correction of the lateral drain position.
Optionally, the access opening and the pull tab are arranged on both sides of the top surface.
Optionally, the length and width of the rectangular steel plate are determined according to the length and width of the transverse drain pipe and actual construction requirements, respectively.
Optionally, the arc-shaped edge of the arc-shaped steel plate is matched with the concrete side wall, the arc size is determined according to the diameter of the side wall, and the height of the arc-shaped steel plate is determined according to the design elevation and the actual construction requirement.
Alternatively, the positioning member is made of steel plate or steel bar.
Optionally, the positioning member is made of more than one steel bar.
Alternatively, the deployment position of the positioner may not block the view of the access opening.
Optionally, the fixing device of the transverse drain pipe is fixedly connected between the assembly elements by welding, bolts, pins and/or riveting.
Optionally, the steel plate has a thickness of no more than 3 mm.
Optionally, more than one reinforcing hole is respectively arranged on the left side surface and the right side surface of the fixing device and used as a connecting part of the fixing device and the two side inverted arches, and the fixing device and the two side inverted arches are detachably connected through stirrups.
An embodiment in the above-mentioned utility model has following advantage or beneficial effect: because the transverse drain pipe fixing device is adopted, when the inverted arch is poured and filled, the linear shape of the transverse drain pipe can be ensured to be smooth, and the three-way joint can be prevented from bulging when being connected with the longitudinal drain pipe, so that the quality of the joint of the longitudinal and transverse drain pipes is obviously improved, and the longitudinal drain pipe is effectively protected.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
Drawings
The accompanying drawings are included to provide a better understanding of the present invention and are not intended to constitute an undue limitation on the invention. Wherein:
FIG. 1 is a front view of a transverse drain pipe securement device according to the present invention;
FIG. 2 is a left side view of the transverse drain fixing device according to the present invention;
FIG. 3 is a top view of a transverse drain pipe securement device according to the present invention;
FIG. 4 is a bottom view of the transverse drain pipe securement device according to the present invention;
FIG. 5 is a schematic view of a method of reinforcing a transverse drain pipe securement device according to the present invention;
FIG. 6 is a construction method of the fixing device for the transverse drainage pipe according to the present invention;
wherein: a is the length of the transverse drain pipe fixing device, b is the width of the transverse drain pipe fixing device, H is the height of the transverse drain pipe fixing device, and R is the radius of the arc surface of the transverse drain pipe fixing device.
Detailed Description
Exemplary embodiments of the invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Fig. 1 to 4 show a front view, a left side view, a top view and a bottom view, respectively, of a transverse drain pipe fixing device according to the present invention. As can be seen in fig. 1 to 4, a tunnel transverse drain pipe fixing device includes: the steel plate comprises a top surface, a front side surface, a left side surface and a right side surface, wherein the top surface is a rectangular steel plate, the left side surface and the right side surface are arc-shaped steel plates and are respectively fixedly connected with the long side of the rectangular steel plate, and the front side surface is fixedly connected with the short side of the rectangular steel plate; the top surface, the front side surface, the left side surface and the right side surface are enclosed to form a semi-closed three-dimensional fan-shaped structure.
The front side surface is used as a first positioning piece, and a second positioning piece is arranged in the fixing device; referring to fig. 2, the first positioning member and the second positioning member divide the inner space of the fixing device into an upper portion and a lower portion. It will be appreciated by those skilled in the art that the lower half of the fixture should be open in order to ensure that a flat concrete casting surface is formed. That is, the circular arc-shaped surface that matches the concrete wall, and the lower half of the front side surface are open.
As shown in fig. 2, a transverse drain pipe clamping groove is arranged at the lower edge of the first positioning piece, and the clamping groove is in an upward convex arc shape matched with the shape of the transverse drain pipe; the second positioning piece is fixedly connected with the left side face and the right side face respectively and is provided with an arc-shaped section which is matched with the shape of the transverse drainage pipe and protrudes upwards. The convex arc section that makes progress can play fine limiting displacement. When concrete is poured and filled, the positioning piece can fix the position of the transverse water guide pipe, and the transverse water guide pipe is prevented from being deformed or displaced due to the impact of the concrete. Therefore, after concrete pouring is finished, the smoothness of the horizontal water guide pipeline type can be still ensured, and the joints of the longitudinal and horizontal drainage facilities are firm and are not staggered.
As shown in fig. 3, an inspection hole is provided on the top surface, through which the position of the lateral drain pipe can be corrected; the length and the width of the fixing device are respectively equal to those of the rectangular steel plate, the height of the fixing device is equal to that of the arc-shaped steel plate, and the arc-shaped edge of the arc-shaped steel plate is matched with the concrete side wall.
According to a preferred embodiment of the invention the pull-up member is made of steel reinforcement or steel plate. The shape of the lifting piece is U-shaped, round, semicircular, square or other shapes which are convenient to lift by hands.
According to a preferred embodiment of the present invention, the shape of the inspection hole is circular, oval, square or other shapes that facilitate observation and correction of the position of the transverse drain pipe.
According to a preferred embodiment of the present invention, as shown in fig. 3, the inspection holes and the pulling members are disposed at both ends of the rectangular steel plate, which facilitates the processing and the implementation.
According to the utility model discloses a preferred embodiment is that length and width of rectangle steel sheet are confirmed according to the length and the width and the actual construction demand of horizontal drain pipe respectively. As will be appreciated by those skilled in the art, the fixing device is required to cover the transverse drain pipe for fixing the position of the transverse drain pipe when in use, so that the minimum width of the rectangular steel plate cannot be smaller than the diameter of the transverse drain pipe; in addition, when the fixing device is used, the fixing device needs to be placed between two adjacent inverted arch reinforcing bars, so that the arc surface of the fixing device is attached to the concrete side wall of the tunnel, and therefore the maximum width of the rectangular steel plate cannot exceed the distance between the two adjacent inverted arch reinforcing bars. The length of the rectangular steel plate is suitable for fixing the transverse drainage pipeline type and fixing the tee joint at the joint of the longitudinal and transverse drainage facilities. That is to say, the length of the rectangular steel plate cannot be too short, otherwise, the limiting force applied to the transverse water guide pipe by the fixing device is not enough to offset the impact force to the transverse water guide pipe during concrete pouring, and then the aim of the utility model cannot be realized; the rectangular steel plate also cannot be too long in length, otherwise, the lifting is difficult on one hand, and the manufacturing cost is increased on the other hand.
According to the utility model discloses a preferred embodiment is the convex limit and the concrete side wall phase-match of convex steel sheet, confirms the circular arc size according to the side wall diameter, and the height of convex steel sheet is confirmed according to design elevation and actual construction demand.
According to a preferred embodiment of the present invention, as shown in fig. 4 (a), the positioning member is made of a steel plate.
According to a preferred embodiment of the present invention, as shown in fig. 4 (b), the positioning member is made of more than one steel bar. More than one reinforcing steel bar is evenly arranged along the horizontal direction, and the limiting force which is evenly distributed is formed on the transverse drain pipe, so that the line type of the transverse drain pipe is kept smooth.
According to a preferred embodiment of the present invention, the arrangement position of the positioning member does not block the view of the inspection hole.
According to the utility model discloses a preferred embodiment is for connecting fixedly between each equipment component of fixing device of horizontal drain pipe through welding, bolt, pin and/or riveted mode.
According to the utility model discloses a preferred embodiment is as shown in fig. 5, more than one reinforcement hole is laid respectively to fixing device's left surface and right flank, is used as the connecting portion of fixing device and both sides inverted arch, fixing device and both sides inverted arch pass through stirrup detachably and are connected.
Fig. 6 is a construction method of the fixing device for the transverse drain pipe in the tunnel according to the present invention, as shown in fig. 6, the construction method includes the following steps:
step 1, designing and manufacturing steps:
(1) shape and size design: determining the shape and the size of the transverse drain pipe fixing device according to the radius of the concrete side wall and the size of the transverse drain pipe;
(2) blanking: selecting a steel plate and a steel bar material with enough rigidity, wherein the surface of the steel plate is flat and has no rust and rust;
(3) and (3) processing and storing: modifying the preliminarily processed clamping groove, and carrying and properly storing the processed clamping groove;
step 2. mounting step
(4) Installing a transverse drain pipe: measuring and positioning the elevation mileage and the gradient of the transverse drain pipe, calibrating the position of the transverse drain pipe and installing the transverse drain pipe;
(5) pretreatment of a contact surface: polishing the contact surface of the transverse drain pipe fixing device and the concrete side wall;
(6) installing a transverse drain pipe fixing device: fixing a transverse drain pipe fixing device on the bound inverted arch reinforcing steel bars, and correcting the position to enable the transverse drain pipe fixing device to be matched with the transverse drain pipe in an attaching mode;
(7) the fixing device is hermetically connected with two ends of the transverse drain pipe;
step 3, pouring: and pouring concrete, after the concrete is initially set, slightly lifting the clamping groove, and entering the next construction cycle.
The utility model discloses an among the preferred embodiment, the steel sheet that adopts will have sufficient rigidity, prevents to take place the degeneration in the use, selects steel sheet thickness not more than 3mm simultaneously, and thickness exceeds 3 mm's steel sheet and can increase the construction degree of difficulty. Before the installation, polish the contact surface of horizontal drain pipe fixing device and concrete side wall with the emery wheel, guarantee that fixing device's arcwall face and side wall concrete face can the abundant contact, guarantee that fixing device installs firmly. The non-woven geotextile is adopted to fill the gap between the transverse drain pipe and the fixing device, so that the transverse drain pipe and the fixing device can be connected in a sealing manner, and the transverse drain pipe is prevented from being blocked due to the fact that the transverse drain pipe is wrapped by pouring concrete.
In a preferred embodiment of the present invention, referring to fig. 5 (a) and (b), the left and right sides of the fixing device are respectively provided with one or more reinforcing holes for connecting the fixing device to the two inverted arches. After the fixing device is installed in place, the fixing device is detachably connected with the left inverted arch and the right inverted arch through stirrups, so that the horizontal position and/or the vertical position of the fixing device can be effectively controlled to be kept unchanged. And after the concrete pouring is finished, removing the stirrups and lifting the fixing device. The effect of the stirrup can be achieved by a person skilled in the art by replacing the stirrup with a similar device.
In a preferred embodiment of the present invention, the surface of the steel plate is coated with a release agent for lubrication to reduce adhesion to concrete. The release agent may be selected from the prior art known in the art and will not be described in detail herein.
The utility model discloses an among the preferred embodiment, treat that one construction process is accomplished, after detecting the concrete and reach initial set intensity, propose fixing device, polish immediately and properly store, avoid the collision and stain.
In a preferred embodiment of the present invention, the transverse drainage pipe is made of phi 100-. The omega-shaped spring drainage pipe is only adopted in places with serious water leakage in principle, the V-level surrounding rocks of the hidden tunnel are arranged at intervals of 4-5m, and the III-level surrounding rocks and the IV-level surrounding rocks of the open tunnel are arranged at intervals of 10 m. The drainage gradient of the transverse drainage pipe is 5 percent.
Further, the most difficult construction of the fixing device is that it is difficult to secure the position of the fixing device during the concrete pouring process, and therefore, after the fixing device is installed in place, the construction worker should take quality control measures to prevent the fixing device from being deformed by displacement during the concrete pouring process, and then check the fixing device to confirm that the installation position of the fixing device meets the construction requirements.
Furthermore, before the tunnel drainage system is constructed, a measurer checks the clearance of the primary support section of the tunnel, and then constructs the annular, longitudinal and transverse drainage pipes and the geotextile waterproof boards according to the design file and the requirements of relevant specifications.
The utility model discloses horizontal drain pipe fixing device's installation can furthest protect two ends of horizontal drain pipe, guarantees that horizontal drain pipe is linear smooth-going. The vertical and horizontal drainage pipes can meet the requirements of line shape and gradient after being connected through the tee joint.
Compared with the traditional process, the utility model discloses a indulge, horizontal drain pipe and tee bend installation time can save more than 24%. Traditional handicraft does not adopt when horizontal drain pipe installation the utility model discloses a fixing device only handles horizontal drain pipe both ends head through geotechnological cloth parcel, except can not guaranteeing connection quality, still can increase extra engineering volume when follow-up vertical drain pipe of installation. When the fixing device is adopted and not adopted, the installation time of the fixing device, the installation time of the transverse drainage pipe, the installation time of the longitudinal drainage pipe, the transverse drainage pipe and the tee joint are shown in a table 1. The following table installation times are the installation times of each pair of facilities (two fixtures, two tees), and the installation times of 5 pairs of facilities are continuously investigated and averaged.
TABLE 1 time comparison of vertical and horizontal drainage pipes installed by fixing device
As can be seen from Table 1, the installation time of the transverse drain pipe is 18min when the fixing device is adopted and the fixing device is not adopted, and the installation time of the pair of fixing devices is 8 min. When the fixing device is not adopted, before the longitudinal and transverse drainage pipes are connected with the tee joint, the concrete surface is leveled, and the installation time of the pair of longitudinal and transverse drainage pipes and the tee joint is 32 min.
Install a pair of horizontal drain pipe, indulge, horizontal drain pipe and tee bend erection time:
a clamping groove is adopted: 8+18+12=38min
No clamping groove is adopted: 0+18+32=50min
Time saving when the card slot is adopted: (50-38)/50 x 100% =24%
Therefore, after the fixing device is used, 24% of longitudinal and transverse drainage facility installation time is saved, the fixing device can be reused, and the efficiency is considerable in the long-term benefit.
The above detailed description does not limit the scope of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A tunnel lateral drain fixing device, comprising: the steel plate comprises a top surface, a front side surface, a left side surface and a right side surface, wherein the top surface is a rectangular steel plate, the left side surface and the right side surface are arc-shaped steel plates and are respectively fixedly connected with the long side of the rectangular steel plate, and the front side surface is fixedly connected with the short side of the rectangular steel plate; the top surface, the front side surface, the left side surface and the right side surface enclose to form a semi-closed three-dimensional fan-shaped structure; the method is characterized in that: the front side surface is used as a first positioning piece, and a second positioning piece is arranged in the fixing device;
an inspection hole is arranged on the top surface, and the position of the transverse drain pipe is corrected through the inspection hole;
the length and the width of the fixing device are respectively equal to those of the rectangular steel plate, the height of the fixing device is equal to that of the arc-shaped steel plate, and the arc-shaped edge of the arc-shaped steel plate is matched with the concrete side wall;
and coating a release agent on the surface of the steel plate for lubricating treatment.
2. The device of claim 1, wherein the lower edge of the first positioning member is provided with a transverse drain pipe clamping groove, and the clamping groove is in an upward convex arc shape matched with the shape of a transverse drain pipe; the second positioning piece is fixedly connected with the left side face and the right side face respectively and is provided with an arc-shaped section which is matched with the shape of the transverse drainage pipe and protrudes upwards.
3. The device according to claim 1 or 2, wherein a pulling member is provided on the top surface of the fixing device, the pulling member and/or the positioning member is made of steel bar or steel plate, and the pulling member is U-shaped, circular, semicircular, square or other shapes convenient for pulling by hand.
4. The apparatus of claim 1, wherein the shape of the inspection hole is circular, oval, square or other shape that facilitates viewing and correction of lateral drain position.
5. The apparatus according to any one of claims 1 or 4, wherein the inspection hole and a pulling member are arranged on both sides of the rectangular steel plate.
6. A device according to claim 1 or 2, wherein the locating member is made from more than one reinforcing bar.
7. The apparatus of claim 6, wherein the deployed position of the positioning member does not block a line of sight of the access opening.
8. The apparatus of claim 1, wherein the steel plate thickness is no greater than 3 mm.
9. The device as claimed in claim 1, wherein more than one reinforcing holes are respectively formed on the left and right sides of the fixing device to serve as connection portions of the fixing device and the both inverted arches, and the fixing device and the both inverted arches are detachably connected through stirrups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921500277.5U CN211343018U (en) | 2019-09-10 | 2019-09-10 | Fixing device for transverse drain pipe of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921500277.5U CN211343018U (en) | 2019-09-10 | 2019-09-10 | Fixing device for transverse drain pipe of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343018U true CN211343018U (en) | 2020-08-25 |
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ID=72107072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921500277.5U Active CN211343018U (en) | 2019-09-10 | 2019-09-10 | Fixing device for transverse drain pipe of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343018U (en) |
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2019
- 2019-09-10 CN CN201921500277.5U patent/CN211343018U/en active Active
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