CN214787444U - Tunnel waterproof plate structure - Google Patents
Tunnel waterproof plate structure Download PDFInfo
- Publication number
- CN214787444U CN214787444U CN202120366518.2U CN202120366518U CN214787444U CN 214787444 U CN214787444 U CN 214787444U CN 202120366518 U CN202120366518 U CN 202120366518U CN 214787444 U CN214787444 U CN 214787444U
- Authority
- CN
- China
- Prior art keywords
- layer
- waterproof board
- waterproof
- welding
- circumferential
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003466 welding Methods 0.000 claims abstract description 160
- 230000009194 climbing Effects 0.000 claims description 8
- 238000007373 indentation Methods 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 27
- 238000000034 method Methods 0.000 abstract description 3
- 239000004746 geotextile Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009193 crawling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The application discloses tunnel waterproof board structure, this tunnel waterproof board structure includes: the second layer of waterproof board is overlapped on the first layer of waterproof board and welded to form a circumferential welding seam, a first notch is arranged at the part, located at the right end of the circumferential welding seam, of the first layer of waterproof board, and one side of the first notch, along the circumferential welding seam, is overlapped with the circumferential welding seam; the third layer of waterproof board is longitudinally overlapped on the second layer of waterproof board, the left end of the third layer of waterproof board extends out of the second layer of waterproof board and is overlapped on the first layer of waterproof board, and the length of the third layer of waterproof board is more than or equal to that of the first notch; and the third layer of waterproof board and the second layer of waterproof board as well as the third layer of waterproof board and the first layer of waterproof board are welded to form a longitudinal welding seam. The application has solved among the correlation technique when the longitudinal construction joint of waterproof board exists coincidence with hoop construction joint, because welding thickness increases, appears leaking easily and welds the condition, welds the problem that can't satisfy the waterproof and drainage requirement.
Description
Technical Field
The application relates to the field of tunnel engineering, particularly, relate to a waterproof plate structure for tunnels.
Background
Along with the continuous development of the railway industry in China, the railway construction demand is continuously increased, the tunnel waterproof construction quality has great influence on the safety and stability of the railway tunnel in operation, at present, various problems often exist in the actual operation of tunnel engineering, the sealing performance of tunnel waterproof board construction and the firmness of a welding seam position greatly influence the normal operation of a tunnel drainage system, meanwhile, the waterproof and water leakage condition is easy to occur, and the construction method for welding the multilayer waterproof boards to improve the waterproof performance is worthy of exploration.
In the related technology, the circumferential construction waterproof plate lap joint seam and the arch wall are staggered for the construction of the tunnel waterproof plate, and the lap joint does not exceed 3 layers. When the longitudinal construction joint of the waterproof plate coincides with the circumferential construction joint during welding, the problem of welding of three layers of waterproof plates can occur, the welding condition is easily caused due to the increase of the welding thickness, and the welding can not meet the waterproof and drainage requirements.
When the longitudinal construction joint of the waterproof plate and the circumferential construction joint coincide in the related art, the problem of welding of three layers of waterproof plates can occur, the welding thickness is increased, the welding condition is easy to leak, and the problem that the welding cannot meet the waterproof and drainage requirements is solved.
SUMMERY OF THE UTILITY MODEL
The main aim at of this application provides a tunnel waterproof board structure to when solving among the correlation technique longitudinal construction joint of waterproof board and hoop construction joint and having coincidence, three-layer waterproof board welded problem can appear, because welding thickness increases, appears leaking easily and welds the condition, welds the problem that can't satisfy the waterproof and drainage requirement.
In order to achieve the above object, the present application provides a tunnel flashing structure including: the waterproof structure comprises a circumferential waterproof plate and a longitudinal waterproof plate, wherein the circumferential waterproof plate comprises a first layer of waterproof plate and a second layer of waterproof plate, and the longitudinal waterproof plate comprises a third layer of waterproof plate; the second layer of waterproof board is overlapped on the first layer of waterproof board and welded to form a circumferential welding seam, a first notch is formed in the part, located at the right end of the circumferential welding seam, of the first layer of waterproof board, and the first notch is overlapped with the circumferential welding seam along one side of the circumferential welding seam; the third layer of waterproof board is longitudinally erected on the second layer of waterproof board, the left end of the third layer of waterproof board extends out of the second layer of waterproof board and is erected on the first layer of waterproof board, and the length of the third layer of waterproof board is greater than or equal to that of the first notch; and the third layer of waterproof board and the second layer of waterproof board as well as the third layer of waterproof board and the first layer of waterproof board are welded to form a longitudinal welding seam, and the longitudinal welding seam penetrates through one side of the circumferential welding seam along the first notch.
Furthermore, the number of the circumferential welding seams and the number of the longitudinal welding seams are at least three.
Furthermore, a slope used for climbing the walking of the welding machine is arranged on one side of the circumferential welding line along the first notch, and the first notch is L-shaped.
Furthermore, the part of the second layer of waterproof board, which is located at the left end of the circumferential weld joint, is provided with a second notch in an L shape, and the first notch and the second notch are symmetrically arranged.
Further, the width of the circumferential welding seam and the width of the longitudinal welding seam are more than or equal to 15 cm.
Furthermore, the length of the first notch and the second notch along one side of the circumferential welding line is 25-35 cm.
According to another aspect of the present application, there is provided a construction method for a tunnel flashing structure, the construction method for a tunnel flashing structure including the steps of:
(1) arranging an annular waterproof plate, specifically, erecting one end of a second layer of waterproof plate on a first layer of waterproof plate, and welding the second layer of waterproof plate by using a climbing welding machine to form an annular welding seam;
(2) cutting the part, located at the right end of the circumferential welding line, of the first layer of waterproof board to form a first notch, and enabling the first notch to be overlapped with the circumferential welding line along one side of the circumferential welding line;
(3) arranging a longitudinal waterproof board, specifically, longitudinally erecting a third layer of waterproof board on a second layer of waterproof board, extending the left end of the third layer of waterproof board out of the second layer of waterproof board and erecting the third layer of waterproof board on the first layer of waterproof board, and enabling the length of the third layer of waterproof board erected on the first layer of waterproof board to be more than or equal to the length of the first notch;
(4) the lap joint of the third layer of waterproof board and the second layer of waterproof board and the lap joint of the third layer of waterproof board and the first layer of waterproof board are welded along the longitudinal direction through the climbing welder, a longitudinal welding seam is formed, and the longitudinal welding seam penetrates through one side of the circumferential welding seam of the first notch.
Furthermore, a slope used for climbing a welding machine to walk is arranged on one side of the circumferential welding line along the first notch.
Further, the first notch is cut into an L shape.
Further, the step (2) further comprises: when carrying out water-proof construction to the downhill path tunnel, be located to the second layer waterproof board the part of hoop welding seam left end cuts the second breach that forms L shape, first breach and second breach symmetry set up.
Further, the width of the circumferential welding seam and the width of the longitudinal welding seam are more than or equal to 15 cm.
In the embodiment of the application, by arranging the annular waterproof plate and the longitudinal waterproof plate, the annular waterproof plate comprises a first layer of waterproof plate and a second layer of waterproof plate, and the longitudinal waterproof plate comprises a third layer of waterproof plate; the second layer of waterproof board is overlapped on the first layer of waterproof board and welded to form a circumferential welding seam, a first notch is formed in the part, located at the right end of the circumferential welding seam, of the first layer of waterproof board, and one side of the first notch, along the circumferential welding seam, is overlapped with the circumferential welding seam; the third layer of waterproof board is longitudinally overlapped on the second layer of waterproof board, the left end of the third layer of waterproof board extends out of the second layer of waterproof board and is overlapped on the first layer of waterproof board, and the length of the third layer of waterproof board is more than or equal to that of the first notch; and the third layer of waterproof board and the second layer of waterproof board as well as the third layer of waterproof board and the first layer of waterproof board are welded to form a longitudinal welding seam, and the longitudinal welding seam passes through the first notch and is arranged along one side of the circumferential welding seam. The purpose of reducing the welding thickness at the three-layer waterproof board welding position is achieved, the three-layer waterproof board is convenient to weld, the technical effect that the three-layer waterproof board is welded firmly is achieved, the problem that the three-layer waterproof board is welded when the longitudinal construction joint and the circumferential construction joint of the waterproof board coincide in the related technology is solved, the welding condition is easily caused to leak due to the fact that the welding thickness is increased, and the problem that the waterproof and drainage requirements cannot be met in welding is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic structural diagram according to an embodiment of the present application;
FIG. 2 is another schematic structural diagram according to an embodiment of the present application;
wherein, 1 first layer waterproof board, 2 hoop welding seams, 3 second layer waterproof boards, 4 unwelded parts, 5 first breach, 6 vertical welding seams, 7 third layer waterproof boards, 8 welded parts, 9 second breach.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 2, an embodiment of the present application provides a tunnel flashing structure, including: the waterproof structure comprises a circumferential waterproof board and a longitudinal waterproof board, wherein the circumferential waterproof board comprises a first waterproof board layer 1 and a second waterproof board layer 3, and the longitudinal waterproof board comprises a third waterproof board layer 7; the second layer of waterproof board 3 is overlapped on the first layer of waterproof board 1 and welded to form a circumferential welding seam 2, a first notch 5 is arranged at the part, located at the right end of the circumferential welding seam 2, of the first layer of waterproof board 1, and one side, along the circumferential welding seam 2, of the first notch 5 is overlapped with the circumferential welding seam 2; the third layer of waterproof board 7 is longitudinally overlapped on the second layer of waterproof board 3, the left end of the third layer of waterproof board 7 extends out of the second layer of waterproof board 3 and is overlapped on the first layer of waterproof board 1, and the length of the third layer of waterproof board 7 is more than or equal to that of the first gap 5 on the first layer of waterproof board 1; the third layer of waterproof board 7 and the second layer of waterproof board 3 and the third layer of waterproof board 7 and the first layer of waterproof board 1 are welded to form a longitudinal welding seam 6, and the longitudinal welding seam 6 passes through the first notch 5 and is arranged along one side of the circumferential welding seam 2.
In this embodiment, use the flowing water direction by the left side right direction as the example, first layer waterproof board 1 is located the lower floor, and second layer waterproof board 3 is taken on the right of first layer waterproof board 1, adopts the form that the right side was pushed down to form the overlap joint region, climb the welding machine and preheat, temperature adjustment is to 400 and welds this overlap joint region, the welding seam width is not less than 15mm, thereby carry out welded fastening with first layer waterproof board 1 and second layer waterproof board 3, and form circumferential welding seam 2. The width of the circumferential welding seam 2 is smaller than that of the lap joint area, therefore, the left side and the right side of the circumferential welding seam 2 are both provided with the unwelded part 4, the first waterproof board layer 1 and the second waterproof board layer 3 of the unwelded part 4 are overlapped, the thickness of the welded part 8 (namely the circumferential welding seam 2) is reduced after welding, namely the thickness of the welded part 8 is smaller than that of the unwelded part 4. When the waterproof board structure in the related art is adopted, the third layer waterproof board 7 is erected on the first layer waterproof board 1 and the second layer waterproof board 3 which are welded, and the third layer waterproof board 7 is overlapped with the unwelded part 4 and the welded part 8, so that the thickness of the unwelded part 4 is large, the situation that the welding is difficult to perform and the welding is missed is easy to occur.
Therefore, in this embodiment, the structures of the second layer waterproof board 3 and the first layer waterproof board 1 which have been welded are adjusted, specifically, the first notch 5 is formed in the portion, located at the right end of the circumferential weld seam 2, of the first layer waterproof board 1, and the forming width of the first notch 5 extends to the side edge of the circumferential weld seam 2, that is, the first notch 5 coincides with the circumferential weld seam 2 along one side of the circumferential weld seam 2, and the first notch 5 can be formed in a square shape or an L shape. After the first gap 5 is opened, the third layer of waterproof board 7 is overlapped on the second layer of waterproof board 3 and partially overlapped on the first gap 5. Because the setting of first breach 5 on the first layer waterproof board 1 for only need carry out the welding of second floor waterproof board 3 and third layer waterproof board 7 to the part of first breach 5, and to hoop welding seam 2 part, because the stack thickness of here first layer waterproof board 1 and second floor waterproof board 3 diminishes after the welding, even third layer waterproof board 7 overlaps and still can weld firmly on hoop welding seam 2.
Can set up first breach 5 into L shape for offering of first breach 5 for being convenient for, adopt 7 font knives to tailor first layer waterproof board 1, climb the welding machine welding left side end right height, guarantee horizontal waterproof board overlap joint on the hoop waterproof board, guarantee well style of calligraphy welding seam after the welding of welding seam is accomplished, the welding is closely knit. For the walking of the further welding machine of being convenient for climb, first breach 5 is along cutting to the oblique groove to one side of welding seam 2. In order to improve the welding firmness, at least three welding seams are arranged on the welding seam and the longitudinal welding seam 6.
As shown in fig. 1 to 2, for the particularity of the tunnel structure, when performing water-proof treatment on the downhill tunnel, water flows downwards, and therefore firm welding needs to be performed on both sides of the circumferential welding seam 2, i.e., a second notch 9 needs to be also formed in the left side of the circumferential welding seam 2, the second notch 9 is formed in the second-layer waterproof board 3, the second notch 9 can also be formed in an L shape, and the first notch 5 and the second notch 9 are symmetrically arranged. The widths of the circumferential welding seam 2 and the longitudinal welding seam 6 are more than or equal to 15cm, and the lengths of the first notch 5 and the second notch 9 along one side of the circumferential welding seam 2 are 25-35cm, preferably 30 cm.
According to another aspect of the present application, there is provided a construction method for a tunnel flashing structure, the construction method for a tunnel flashing structure including the steps of:
(1) arranging a circumferential waterproof plate, specifically, erecting one end of a second layer of waterproof plate 3 on a first layer of waterproof plate 1, and welding the second layer of waterproof plate by using a climbing welding machine to form a circumferential welding seam 2;
(2) cutting the part of the first layer of waterproof board 1, which is positioned at the right end of the circumferential welding seam 2, to form a first notch 5, and enabling one side of the first notch 5 along the circumferential welding seam 2 to coincide with the circumferential welding seam 2;
(3) arranging a longitudinal waterproof board, specifically, longitudinally overlapping a third layer of waterproof board 7 on a second layer of waterproof board 3, extending the second layer of waterproof board 3 from the left end of the third layer of waterproof board 7 and overlapping the first layer of waterproof board 1, and enabling the third layer of waterproof board 7 to be overlapped on the first layer of waterproof board 1, wherein the length of the third layer of waterproof board 7 is more than or equal to the length of the first gap 5;
(4) the lap joint of the third layer waterproof board 7 and the second layer waterproof board 3 and the lap joint of the third layer waterproof board 7 and the first layer waterproof board 1 are welded along the longitudinal direction through the climbing welder, a longitudinal welding seam 6 is formed, and the longitudinal welding seam 6 penetrates through the first notch 5 to be arranged on one side of the circumferential welding seam 2.
In this embodiment, the construction requirements are as follows:
(1) after the geotextile is hung, the waterproof board is hung in the same way, and when the geotextile is hung, a welder on the operation platform welds the hot-melt gasket and the waterproof board one by an electromagnetic welding machine. After the waterproof board is hung, the circumferential and longitudinal waterproof board joints are welded by using an upward welding machine, the width of the welding line is more than or equal to 15cm, and at least 60cm lap joint allowance is reserved at the edge part of the waterproof board paved in sections. The waterproof board joint and the lining construction joint are staggered by 1-2 m.
(2) The overlapping width of the seams of the geotextile is not less than 15 cm. Generally, only circumferential seams are arranged, when the length of the geotextile is insufficient, the axial seams are arranged to ensure that the upper part (one sheet close to the arch part) is compressed by the lower part (one sheet close to the bottom) of the geotextile, the geotextile is tightly attached to the base surface, and the laid geotextile is smooth, has no bulge and has no wrinkles.
(3) The flashing should be laid circumferentially from bottom to top, the lower flashing having to be pressed against the upper flashing. The laying tightness is proper and a margin is left properly. The surface of the waterproof board is required to be comprehensively inspected in time after the waterproof board is laid, repair welding is carried out in time when the waterproof board is damaged, the repair welding is required to be cut into a circle, triangular or quadrilateral pointed feet cannot exist, the distance between the edge of the patch and the damaged edge is not less than 7cm, the patch is required to be fully welded, a raised edge hollow drum part cannot exist, and air leakage detection is carried out on the patch.
(4) The distance between the embedded part and the waterproof plate in the second lining is not less than 5 cm.
(5) The waterproof board should be laid by hanging from the arch part to the side walls at two sides by a special trolley. The lower waterproof board must press the upper waterproof board, and the laying tightness should be proper and a margin is left.
(6) The waterproof board is fixed by adopting an electric hot-melting geotextile thermoplastic gasket of an electric hot-pressing welder, so that the waterproof board and the thermoplastic gasket are melted and bonded into a whole: the reinforced waterproof board is lifted or extruded by hands, and the waterproof board cannot be tightened or damaged so as to ensure that the concrete is closely attached to the surface of the primary support after being poured
The overlapping of the flashing should meet the following requirements:
firstly, the lapping width of the two waterproof boards is not less than 15cm, at least 60cm of lapping allowance is reserved at the edge of the waterproof boards laid in sections, and the reserved edge is effectively protected.
Secondly, the parts of the heat sealing machine which are not easy to weld can be welded by a handheld welding gun, and the lapping quality is ensured.
And thirdly, the joint of the waterproof plate is staggered from the lining construction joint by 1.0-2.0 m.
The welding of the waterproof board should meet the following requirements:
firstly, when welding, the seam must be cleaned, and the welding seam joint should be smooth, and no bubble wrinkle or gap is required.
Secondly, professional staff should take charge of the welding of the waterproof board to ensure the quality of the welding seam. The welding machine operator should be trained and relatively stationary.
And thirdly, testing welding on the plastic sheet before welding to master the welding temperature and the welding speed.
Welding the waterproof plate by adopting double welding lines, carrying out hot-melt welding by a temperature-adjusting and speed-adjusting hot-wedge type automatic crawling type heat sealing machine, and carrying out detail treatment or repair by adopting a handheld welding gun; the automatic crawling type heat sealing machine has two control factors of temperature and speed, and when the temperature of the welding wedge is high, the walking speed of the welding machine is high; when the welding wedge temperature is low, the walking temperature of the welding machine should be slow.
Fifthly, the effective welding width of the single welding line is not less than 15 mm.
When welding in the hole, the two waterproof boards are firstly paved and positioned, the end heads are respectively reserved for 20cm, one person rights the waterproof boards at the two ends at the position which is about 50cm in front of the welding machine, the other person holds the welding machine by hand, the welding machine is kept in the air which is 5-10 cm away from the base surface, the person walks forwards at the preset constant speed, the person can not pause in the midway, and the welding of the whole welding line is finished at one go.
The longitudinal lap joint and the circumferential lap joint of the waterproof plate are covered with a layer of waterproof plate made of the same material except for normal construction, and the waterproof plate is welded by a hot melting welding method; when the annular lap joint is carried out, the lower waterproof plate is pressed against the upper waterproof plate for welding.
If the welding seam has leakage welding and false welding, repair welding is needed, and if the welding seam has scorching, penetration welding and exposed fixed points, the welding seam must be covered by a plastic sheet.
When the waterproof board is laid at the auxiliary cavern, the waterproof board is processed according to the size and the shape of the auxiliary cavern and is welded with the side wall waterproof board into a whole. If the auxiliary chamber is not well formed, the same level of concrete is needed to make the appearance smooth, and then the waterproof board can be paved.
Furthermore, a slope used for climbing a welding machine to walk is arranged on one side of the circumferential welding line along the first notch. The first notch is cut into an L shape, and the step (2) further comprises the following steps: when carrying out water-proof construction to the downhill path tunnel, be located to the second layer waterproof board the part of hoop welding seam left end cuts the second breach that forms L shape, first breach and second breach symmetry set up. The widths of the circumferential welding seam and the longitudinal welding seam are more than or equal to 15 cm.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A tunnel flashing structure, comprising: the waterproof structure comprises a circumferential waterproof plate and a longitudinal waterproof plate, wherein the circumferential waterproof plate comprises a first layer of waterproof plate and a second layer of waterproof plate, and the longitudinal waterproof plate comprises a third layer of waterproof plate; wherein,
the second layer of waterproof board is overlapped on the first layer of waterproof board and welded to form a circumferential welding seam, a first notch is formed in the part, located at the right end of the circumferential welding seam, of the first layer of waterproof board, and the first notch is overlapped with the circumferential welding seam along one side of the circumferential welding seam;
the third layer of waterproof board is longitudinally erected on the second layer of waterproof board, the left end of the third layer of waterproof board extends out of the second layer of waterproof board and is erected on the first layer of waterproof board, and the length of the third layer of waterproof board is greater than or equal to that of the first notch;
and the third layer of waterproof board and the second layer of waterproof board as well as the third layer of waterproof board and the first layer of waterproof board are welded to form a longitudinal welding seam, and the longitudinal welding seam penetrates through one side of the circumferential welding seam along the first notch.
2. The tunnel flashing structure of claim 1, wherein the circumferential weld and the longitudinal weld are each provided as at least three.
3. The tunnel waterproof plate structure of claim 2, wherein the first notch is provided with a slope for a climbing welder to walk along one side of the circumferential weld, and the first notch is L-shaped.
4. The tunnel flashing structure of any one of claims 1 to 3, wherein a portion of the second layer of flashing at the left end of the circumferential weld is provided with a second L-shaped notch, and the first and second notches are symmetrically arranged.
5. The tunnel flashing structure of claim 4, wherein the circumferential weld and the longitudinal weld have a width of 15cm or more.
6. The tunnel flashing structure of claim 5, wherein the first and second indentations are 25-35cm in length along one side of the circumferential weld.
7. The tunnel flashing structure of claim 5, wherein the first and second indentations are 30cm in length along one side of the circumferential weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366518.2U CN214787444U (en) | 2021-02-09 | 2021-02-09 | Tunnel waterproof plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120366518.2U CN214787444U (en) | 2021-02-09 | 2021-02-09 | Tunnel waterproof plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787444U true CN214787444U (en) | 2021-11-19 |
Family
ID=78753268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120366518.2U Active CN214787444U (en) | 2021-02-09 | 2021-02-09 | Tunnel waterproof plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761684A (en) * | 2021-02-09 | 2021-05-07 | 中交路桥建设有限公司 | Tunnel waterproof plate structure and construction method for same |
-
2021
- 2021-02-09 CN CN202120366518.2U patent/CN214787444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761684A (en) * | 2021-02-09 | 2021-05-07 | 中交路桥建设有限公司 | Tunnel waterproof plate structure and construction method for same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104018857B (en) | A kind of splicing laying method of anchor bar of waterproof plate in tunnels and structure thereof | |
| CN202937276U (en) | Waterproof structure for tunnel | |
| CN203742624U (en) | Splicing laying structure of tunnel water proof board | |
| CN214787444U (en) | Tunnel waterproof plate structure | |
| CN108411939A (en) | The spliced prefabricated pipe gallery of one kind and its construction method | |
| CN108691558A (en) | A kind of anchor bar of waterproof plate in tunnels laying method | |
| CN110145364A (en) | A kind of construction method of tunnel water handling structure | |
| CN112761684A (en) | Tunnel waterproof plate structure and construction method for same | |
| CN207920641U (en) | Novel tunnel water-proof structure | |
| KR20120020018A (en) | Waterproof sheet having channel type draining guidance sheet and manufacturing apparatus and method the sameof, tunnel waterproof method using the waterproof sheet | |
| CA1102568A (en) | Method of lining an earthen tank | |
| JPS5844200A (en) | Waterproof execution method for tunnel | |
| CN110847246A (en) | Manufacturing method of rigid landfill seepage prevention system and rigid landfill seepage prevention system | |
| CN113733572B (en) | Construction process for welding joint of new and old impermeable membranes and application thereof | |
| KR101171037B1 (en) | Method for compartmentalized tunnel waterproofing | |
| CN110374638A (en) | A kind of anchor bar of waterproof plate in tunnels zip mode connection system and its construction method | |
| CN108386625A (en) | A kind of reinforced type prefabricated direct-buried thermal insulation pipe road | |
| CN209111656U (en) | A kind of edge is equipped with the waterproof roll on connection slope | |
| CN106996300B (en) | A kind of anchor bar of waterproof plate in tunnels laying method | |
| CN205530664U (en) | Irregular sludge lagoon overlay structure of large tracts of land | |
| KR20100088973A (en) | Tunnel waterproof process of construction work that use waterproof material for tunnel and waterproof material for tunnel | |
| CN206554125U (en) | A kind of new underground project waterproof structure | |
| CN112523780A (en) | Soft rock tunnel lining vault anti-hollowing active monitoring construction method | |
| CN217129554U (en) | Waterproofing membrane and tunnel waterproof construction | |
| CN217028945U (en) | Novel tunnel waterproof plate structure adopting sticking mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |