CN108005692B - Water stop clamp, tunnel longitudinal water stop structure and construction method - Google Patents
Water stop clamp, tunnel longitudinal water stop structure and construction method Download PDFInfo
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- CN108005692B CN108005692B CN201711425278.3A CN201711425278A CN108005692B CN 108005692 B CN108005692 B CN 108005692B CN 201711425278 A CN201711425278 A CN 201711425278A CN 108005692 B CN108005692 B CN 108005692B
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- clamp
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 288
- 238000010276 construction Methods 0.000 title claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 17
- 239000004744 fabric Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000002390 adhesive tape Substances 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 5
- 238000001764 infiltration Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000009987 spinning Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of tunnel construction, in particular to a water stop clamp, a tunnel longitudinal water stop structure and a construction method, wherein the water stop clamp comprises a fixing part which is used for being installed on a tunnel side wall edge, and a connecting part which is connected with the fixing part and extends to the upper part of a concrete pouring area, the connecting part is provided with an installation structure which is used for connecting a metal plate-shaped water stop, the relative position between the water stop and the connecting part is adjustable, so that after the water stop is connected with the connecting part, the water stop corresponds to a construction joint, the water stop clamp is arranged on an inverted arch trestle edge, the water stop part is clamped and fixed through the connecting part, and is effectively adjusted through the connecting part, thereby solving the problem of difficult positioning, simultaneously changing the water stop part, solving the problems of serious distortion and inconvenient splicing of the existing water stop part, achieving the aims of accurate positioning, straight non-distortion and convenient connection of the water stop, and ensuring the engineering quality and engineering safety of tunnel waterproof construction.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a water stop clamp, a tunnel longitudinal water stop structure and a construction method.
Background
In the tunnel construction process, the tunnel waterproof construction is an important link. If the waterproof construction process is not finished, the problem that water seepage exists and waterlogging is caused after the later-stage tunnel is put into use in the tunnel construction process is solved, and the engineering quality of the tunnel is seriously affected.
The infiltration problem of tunnel mainly takes place in the position of construction seam, the side wall of tunnel gradually pours the in-process from the bottom to the top, can have horizontal direction's transverse seam, this transverse seam extends along tunnel longitudinal direction, its length is tunnel in the ascending section length of pouring of length, in order to avoid having the infiltration phenomenon in this construction seam position, it sets up the stagnant water part usually to need in this construction seam position, current stagnant water part mainly adopts waterproof cloth or stagnant water adhesive tape to keep apart, arrange it in construction seam position, waterproof cloth or stagnant water adhesive tape's upper and lower both ends extend respectively to in the concrete, thereby keep apart construction seam both sides, reach the effect of stagnant water, effectively avoid the rivers infiltration of tunnel outer wall to the tunnel in.
However, when the water stop member of such a waterproof woven cloth or water stop tape is used as a tunnel longitudinal water stop structure, there are the following problems:
firstly, because the water-stopping part is influenced by the characteristics of the material of the water-stopping part, the water-stopping part is difficult to position in the longitudinal direction, and the problems of inaccurate positioning and poor water-stopping effect exist;
secondly, the water-stopping component is difficult to fix firmly, the problem of uneven and twisted often exists, and after concrete is poured, the concrete on two sides of the water-stopping component is not full, so that the water-stopping effect of the water-stopping component is affected;
furthermore, the existing water stop parts are inconvenient to connect at the joint parts, and severe water seepage phenomenon often exists at the joint parts.
Therefore, the improvement of the water stopping part and the firm fixation of the water stopping part ensure that the water stopping part is positioned accurately, straight and free from distortion and is convenient to connect, and the water stopping part becomes a problem which needs to be considered and solved in the tunnel waterproof construction process.
Disclosure of Invention
The invention aims at: when adopting waterproof spinning cloth or waterproof adhesive tape as the vertical stagnant water structure of tunnel among the prior art, there is the location difficultly, distortion is serious and inconvenient concatenation, and then it is poor to lead to the vertical stagnant water effect of tunnel, influence engineering quality and safe problem such as easy emergence infiltration, provide a stagnant water clamp, the vertical stagnant water structure of tunnel and construction method, this stagnant water clamp sets up on the inverted arch landing stage limit is touched, carry out the centre gripping fixed to stagnant water part through the connecting portion that arranges above that, and carry out effective regulation to the position of stagnant water part through connecting portion, thereby the difficult problem of location has been solved, change stagnant water part simultaneously, the serious and inconvenient concatenation of current stagnant water part distortion has been solved, carry out firm fixation to stagnant water part through this stagnant water clamp, reach stagnant water part location accuracy, straight not distortion and conveniently carry out the purpose of connecting, guarantee the engineering quality and the engineering safety of tunnel waterproof construction.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a waterstop fixture, is including being used for installing the fixed part on tunnel sidewall template, and with fixed part is connected and extends to the connecting portion of concrete placement district top, be equipped with the mounting structure who is used for connecting the waterstop on the connecting portion, the relative position between waterstop and the connecting portion is adjustable, makes after the waterstop is connected with the connecting portion, the waterstop corresponds with the construction joint, the waterstop is the sheet metal waterstop.
In the prior art, waterproof spinning cloth or waterproof adhesive tape is adopted as a waterproof component, the waterproof component is difficult to fix when being arranged at a construction joint due to the influence of material characteristics of the waterproof component, so that the problem of difficult positioning exists, the waterproof spinning cloth or waterproof adhesive tape is difficult to flatten and often generates the phenomenon of uneven twisting, and after a metal plate-shaped water stop is adopted, the problem of difficult twisting is caused because the waterproof component has certain strength and rigidity, the waterproof component is arranged at a target position to the whole process of concrete pouring solidification after flattening, and the water stop can keep the original straight state and has good water stopping performance.
After the waterstop adopts the metal plate-shaped waterstop, two adjacent waterstops along the longitudinal direction of the tunnel are convenient to connect, and when the waterstops are connected, the mode of lap joint can be adopted to carry out full-welding splicing, so that good water stopping performance between the two adjacent waterstops is ensured, and water seepage phenomenon can not occur at the joint of the waterstops.
Through the waterstop fixture of this scheme, fix the waterstop on the waterstop fixture, the waterstop fixture includes fixed part and connecting portion, install this waterstop fixture on the sideform of tunnel sidewall through the fixed part, thereby realize the firm fixed of fixture, connecting portion extends to concrete placement district top, distance between length control waterstop and the sideform is through extending, thereby adjust the position of waterstop on the horizontal direction, and the relative position between waterstop and the connecting portion is adjustable, can adjust the position of stagnant water in vertical direction, and install through mounting structure, thereby realized the accurate positioning of waterstop, the waterstop fixture through this scheme has solved the difficult problem of waterstop location, thereby guarantee the engineering quality and the engineering safety of tunnel waterproofing through good stagnant water effect.
Further, the tunnel side wall template is an inverted arch trestle side template. In the construction process of the inverted arch trestle, the water stop clamp is arranged on the side die of the inverted arch trestle, so that the inverted arch trestle has the advantages of convenience in installation and firmness in position, and meanwhile, the water stop clamp is arranged on the side die of the inverted arch trestle, and the material usage amount of the clamp can be saved due to the fact that the water stop clamp is closely adjacent to the water stop installation target part, and the water stop can be installed and fixed only by arranging a short connecting part.
Preferably, the fixing part is a stand column detachably arranged on the tunnel side wall template, and the stand column is provided with a mounting hole for connecting with the connecting part.
The mounting holes are formed in the upright posts, so that the connecting portions and the fixing portions are detachably connected, and the fixing portions and the tunnel side wall templates are detachably connected, so that the water stop clamp is convenient to disassemble and assemble, clean and reuse.
Preferably, the upright post is of a rectangular structure formed by butt-buckling two U-shaped steel grooves, the section of the upright post is rectangular, and the mounting holes are arranged on two side surfaces of the upright post along the longitudinal direction of the tunnel.
The upright post is arranged in a structural form that the section shape is a rectangular ring, so that the installation area between the upright post and the tunnel side wall template can be increased, and firm connection of the upright post and the tunnel side wall template is ensured.
Preferably, the connecting portion comprises a cross beam connected with the fixing portion, the cross beam is arranged approximately horizontally, a longitudinal beam is connected to the end portion of the cross beam and arranged approximately vertically, the mounting structure is a vertical strip-shaped hole formed in the longitudinal beam, and a fastener for mounting the water stop on the longitudinal beam is arranged on the vertical strip-shaped hole.
The vertical strip-shaped holes are formed in the vertical longitudinal beams, so that the water stop strips can move up and down along the vertical strip-shaped holes after being mounted on the longitudinal beams, and therefore position adjustment of the water stop strips in the vertical direction is achieved, and water stop strip positioning is completed.
Further, the cross beam and the longitudinal beam are angle steel.
Preferably, the connecting part comprises a cross beam connected with the fixing part and a clamping member arranged at the end part of the cross beam, the clamping member comprises a first clamping piece and a second clamping piece, a clamping groove for placing the water stop belt is formed between the first clamping piece and the second clamping piece, the mounting structure is a fixing piece connected to the second clamping piece, and the fixing piece can be screwed into the first clamping piece and tightly presses the water stop belt on the first clamping piece.
Further, the mounting is the stay bolt of installing on the second holder, and this stay bolt connects on the second holder, and the terminal surface of the other end contacts with the waterstop face, precesses stay bolt, and stay bolt's tip compresses tightly the waterstop laminating on first holder.
Preferably, the cross beam and the clamping member are both angle steel.
The two side surfaces of the first clamping piece and the second clamping piece are arranged back to back, and the other two side surfaces of the first clamping piece and the second clamping piece are respectively positioned at the two sides of the clamping groove.
Further, the cross beam and the clamping member are integrally connected to form a stable integral structure.
Preferably, the two ends of the water stop belt are provided with extension parts which are biased to the opposite sides of the tunnel side wall templates.
Set up the extension on the stagnant water area, this extension is to the relative one side skew of tunnel sidewall template for the face of stagnant water area and the face of extension become acute angle contained angle, further guarantee that the stagnant water area has good stagnant water effect, but when the tunnel outer wall exists rivers, rivers are through the inboard seepage flow of construction joint to the tunnel, set up the extension after, rivers hardly bypass this extension, thereby keep apart the infiltration in the stagnant water outside, play good stagnant water effect.
Correspondingly, the invention also provides a tunnel longitudinal water stop structure, which comprises a metal plate-shaped water stop arranged along the tunnel longitudinal direction, wherein a plurality of water stop clamps are arranged along the length direction of the metal plate-shaped water stop, the water stop clamps are arranged on a tunnel side wall template, the center line of the metal plate-shaped water stop is approximately coincident with the center line of a construction joint, the allowable deviation of the installation radial position of the metal plate-shaped water stop is +/-50 mm, and the allowable deviation of the longitudinal direction is +/-30 mm.
By adopting the tunnel longitudinal water stop structure of the scheme, the construction joint has good waterproof effect, no water seepage phenomenon exists, the radial installation position of the metal plate-shaped water stop belt refers to the position of the water stop belt in the horizontal direction, and the longitudinal position of the metal plate-shaped water stop belt refers to the position of the water stop belt in the vertical direction.
Because the metal plate-shaped water stop is used as the waterproof component of the tunnel longitudinal water stop structure, the metal plate-shaped water stop has certain strength, can bear the vibration impact force generated when concrete near the water stop is poured, cannot easily deform, break and deviate, and can ensure engineering quality and waterproof safety.
A plurality of waterstop clamps are arranged, so that the waterstop is firmly fixed, and the waterstop is prevented from shifting in the construction process.
Preferably, the water-swelling water stop strip is arranged on the construction joint and is arranged outside the metal plate-shaped water stop strip.
The outer side of the metal plate-shaped water stop belt is provided with a water-swelling water stop strip, so that the dual water stop effect is achieved.
Correspondingly, the invention also provides a construction method of the tunnel longitudinal water stop structure, when the metal plate-shaped water stop is fixed by adopting the water stop clamp, the fixing part and the connecting part of the water stop clamp are arranged to be connected in a relatively movable mode, and the construction process comprises the following steps:
a. a fixing part for installing the water stop clamp;
b. measuring lofting, and determining the installation position of the water stop belt;
c. installing a connecting part of the water stop clamp;
d. positioning and clamping the water stop, adjusting the extension length of the connecting part of the water stop clamp according to the mounting position of the water stop, and simultaneously adjusting the relative position of the water stop and the connecting part, and fixing the water stop after the adjustment is completed;
e. pouring concrete;
f. and (3) dismantling the water stop clamp, and dismantling the water stop clamp and cleaning after concrete is poured and solidified so as to facilitate the next repeated use.
By adopting the mode, the water stop component is clamped and fixed through the connecting part arranged on the water stop clamp, the radial position of the water stop is regulated through the relative movement between the connecting part and the fixing part, and the longitudinal position of the water stop is regulated through the relative movement between the connecting part and the water stop, so that the position of the water stop component is effectively regulated, and the problem of difficult positioning is solved; the relative position relation between the water stop and the construction joint is observed through the position adjustment of the water stop, so that the center of the water stop is ensured to be approximately coincident with the center of the construction joint, and the water stop has good water stop effect; by adopting the construction step fixed mounting water stop belt of the scheme, the problems of serious distortion and inconvenient splicing of the existing water stop component are solved, the water stop component is straight and not distorted, meanwhile, connection is convenient, and the engineering quality and engineering safety of the tunnel waterproof construction are ensured.
Further, when the inverted arch trestle is adopted for tunnel construction, before the step of installing the connecting part of the water stop clamp, the inverted arch trestle is firstly positioned, so that the relative position relation of the water stop is conveniently determined, and the positioning accuracy of the water stop is ensured.
Compared with the prior art, the invention has the beneficial effects that:
1. the water stop is fixed on the water stop clamp, the water stop clamp comprises a fixing part and a connecting part, the water stop clamp is installed on a side die of a tunnel side wall through the fixing part, so that firm fixing of the clamp is realized, the connecting part extends above a concrete pouring area, the distance between the water stop and the side die is controlled through the extending length, the position of the water stop in the horizontal direction is adjusted, the relative position between the water stop and the connecting part is adjustable, the position of the water stop in the vertical direction can be adjusted, the water stop is installed through an installation structure, the accurate positioning of the water stop is realized, the problem of difficult positioning of the water stop is solved through the water stop clamp of the scheme, and therefore, the engineering quality and engineering safety of the water-proof construction of a tunnel are ensured through good water stop effect;
2. the metal plate-shaped water stop is adopted, and has the advantages that as the metal plate-shaped water stop has certain strength and rigidity and is not easy to distort, the metal plate-shaped water stop is arranged in the whole process from a target position to concrete pouring solidification after being flattened, the water stop can keep the original straight state, and the water stop performance is good;
3. after the metal plate-shaped water stop is adopted as the water stop, two adjacent water stops along the longitudinal direction of the tunnel are connected conveniently, and when the water stops are connected, full-welding splicing can be carried out in a lap joint mode, so that good water stop performance is ensured between the two adjacent water stops, and water seepage phenomenon can not occur at the joint of the water stops;
4. the upright post is provided with the mounting hole, so that the connecting part and the fixing part are detachably connected, and the fixing part and the tunnel side wall template are also detachably connected, thereby facilitating the disassembly and the installation of the water stop clamp, cleaning the water stop clamp and reusing the water stop clamp;
5. the outer side of the metal plate-shaped water stop belt is provided with a water-swelling water stop strip, so that the dual water stop effect is achieved.
Description of the drawings:
fig. 1 is a schematic structural view of a clamp for a water stop belt according to example 1.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic structural view of the water stop clamp of example 2.
Fig. 5 is a left side view of fig. 4.
Fig. 6 is a schematic structural view of a tunnel longitudinal water stop structure in embodiment 3.
Fig. 7 is a schematic structural view of the plurality of water stop clamps when fixing the water stop.
Fig. 8 is a construction flow chart of a tunnel longitudinal water stop structure in example 4.
The marks in the figure: the water stop clamp comprises a 1-water stop clamp, a 11-fixing part, a 111-mounting hole, a 112-U-shaped channel steel, a 12-connecting part, a 121-cross beam, a 122-longitudinal beam, a 123-clamping member, a 123A-first clamping piece, a 123 b-second clamping piece, a 123 c-clamping groove, a 13-mounting structure, a 13A-fastener, a 2-water stop, a 21-extending part, a 3-construction joint, a 4-tunnel side wall template, a 5-water expansion water stop strip and a 6-concrete pouring area.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1, 2, 3 and 6, the water stop fixture 1 comprises a fixing part 11 arranged on a tunnel side wall template 4, and a connecting part 12 connected with the fixing part 11 and extending to the upper side of a concrete pouring area 6, wherein the connecting part 12 is provided with a mounting structure 13 for connecting a water stop 2, and the relative position between the water stop 2 and the connecting part 12 is adjustable, so that after the water stop 2 is connected with the connecting part 12, the water stop 2 corresponds to a construction joint 3, and the water stop 2 is a metal plate-shaped water stop.
Further, tunnel side wall template is invert landing stage side form, in adopting invert landing stage work progress, installs the waterstop fixture on invert landing stage side form, has easy to assemble, the firm advantage in position, installs the waterstop fixture on invert landing stage side form simultaneously, because next-door neighbour waterstop installation target position, can save the material usage of fixture, only need set up installation, the fixed of waterstop can be realized to shorter connecting portion.
As one embodiment, the fixing portion 11 is a stand column detachably mounted on the tunnel side wall template 4, the stand column is provided with a mounting hole 111 for a connecting portion, the stand column is provided with a mounting hole 111, the connecting portion 12 is detachably connected with the fixing portion 11, and the fixing portion 11 and the tunnel side wall template 4 are also detachably connected, so that the water stop clamp 1 is convenient to disassemble and mount, the water stop clamp 1 is convenient to clean, and the water stop clamp is reused.
As one embodiment, the upright is a rectangular structure formed by splicing two U-shaped channel steels 112 in a butt joint mode, the section of the rectangular structure is a rectangular ring, and the mounting holes 111 are arranged on two side faces of the upright along the longitudinal direction of the tunnel.
As one embodiment, the connecting portion 12 includes a cross beam 121 connected to the fixing portion 11, and a clamping member 123 mounted at an end of the cross beam 121, the clamping member 123 includes a first clamping piece 123a and a second clamping piece 123b, a clamping groove 123c for placing the water stop 2 is formed between the first clamping piece 123a and the second clamping piece 123b, and the mounting structure 13 is a fixing piece connected to the second clamping piece 123b, and the fixing piece can be screwed into the first clamping piece 123a and compress the water stop 2 on the first clamping piece 123 a.
Further, the fixing member is a supporting bolt installed on the second clamping member 123b, the supporting bolt is connected to the second clamping member 123b, the end face of the other end is in surface contact with the water stop belt 2, the supporting bolt is screwed in, and the water stop belt 2 is pressed and attached to the first clamping member 123a by the end of the supporting bolt.
As one embodiment, the cross beam 121 and the clamping member 123 are angle steel, two side surfaces of the first clamping piece 123a and the second clamping piece 123b are disposed opposite to each other, and the other two side surfaces of the first clamping piece 123a and the second clamping piece 123b are respectively located at two sides of the clamping groove 123 c.
Further, the cross beam 121 and the clamping member 123 are integrally connected to form a stable unitary structure.
As one of the implementation modes, the two ends of the water stop belt 2 are provided with the extending parts 21 which are deviated to the opposite sides of the tunnel side wall templates 4, the extending parts 21 are arranged on the water stop belt 2, the extending parts 21 are deviated to the opposite sides of the tunnel side wall templates 4, the plate surfaces of the water stop belt 2 and the plate surfaces of the extending parts 21 form an acute angle and an included angle, so that good water stop effect is further ensured, but when water flows on the outer wall of the tunnel, the water flows to the inner side of the tunnel through the construction joint, and after the extending parts are arranged, the water flows hardly bypass the extending parts, thereby isolating the water seepage outside the water stop belt, and achieving good water stop effect.
Example 2
As shown in fig. 4 and 5, the water stop clamp of the present embodiment is the same as that of embodiment 1, except that the structure of the connecting portion 12 is different.
The connecting portion 12 includes the crossbeam 121 of being connected with the fixed part 11, crossbeam 121 roughly horizontally sets up, crossbeam 121 end connection has longeron 122, and this longeron 122 is roughly vertical setting, mounting structure 13 is for seting up the vertical bar hole on longeron 122, is equipped with the fastener 13A that installs waterstop 2 on longeron 122 on this vertical bar hole, through seting up vertical bar hole on the longeron 122 of vertical setting to make waterstop 2 install on longeron 122 after, can reciprocate along vertical bar hole, thereby realize waterstop 2 in the position adjustment of vertical direction, accomplish the waterstop location.
Further, the cross beam 121 and the longitudinal beam 122 are both angle steel.
Example 3
As shown in fig. 6 and 7, the tunnel longitudinal water stop structure comprises a metal plate-shaped water stop 2 arranged along the tunnel longitudinal direction, a plurality of water stop clamps 1 as in embodiment 1 are arranged along the length direction of the metal plate-shaped water stop 2, the water stop clamps 1 are arranged on a tunnel side wall template 4, the center line of the metal plate-shaped water stop 2 is approximately coincident with the center line of a construction joint 3, the radial position allowable deviation of the metal plate-shaped water stop 2 is +/-50 mm, and the longitudinal direction allowable deviation of the metal plate-shaped water stop 2 is +/-30 mm.
By adopting the tunnel longitudinal water stop structure of the scheme, the construction joint has good waterproof effect, no water seepage phenomenon exists, the radial installation position of the metal plate-shaped water stop belt refers to the position of the water stop belt in the horizontal direction, and the longitudinal position of the metal plate-shaped water stop belt refers to the position of the water stop belt in the vertical direction.
Because the metal plate-shaped water stop is used as the waterproof component of the tunnel longitudinal water stop structure, the metal plate-shaped water stop has certain strength, can bear the vibration impact force generated when concrete near the water stop is poured, cannot easily deform, break and deviate, and can ensure engineering quality and waterproof safety.
A plurality of waterstop clamps are arranged, so that the waterstop is firmly fixed, and the waterstop is prevented from shifting in the construction process.
As one of the embodiments, the tunnel longitudinal water stop structure further comprises a water-swelling water stop strip 5 arranged on the construction joint 3, and the water-swelling water stop strip 5 is arranged outside the metal plate-shaped water stop strip 2.
The water-swelling water stop strip 5 is arranged on the outer side of the metal plate-shaped water stop strip 2, so as to achieve the double water stop effect.
Example 4
As shown in fig. 1 to 8, in the construction method of the tunnel longitudinal water stop structure, when fixing the metal plate-shaped water stop 2 using the water stop clamp 1 as in embodiment 1, the fixing portion 11 and the connecting portion 12 of the water stop clamp 1 are provided to be connected to be movable relatively, and the construction process includes the steps of:
a. a fixing part 11 for installing the water stop clamp 1;
b. measuring lofting, and determining the installation position of the water stop belt 2;
c. a connecting part 12 for installing the water stop clamp 1;
d. positioning and clamping the water stop 2, adjusting the extension length of the connecting part 12 of the water stop clamp 1 according to the installation position of the water stop 2, and simultaneously adjusting the relative position of the water stop 2 and the connecting part 12, and fixing the water stop 2 after the adjustment is completed;
e. pouring concrete;
f. and dismantling the water stop clamp 1, and dismantling the water stop clamp 1 and cleaning after concrete is poured and solidified so as to be reused next time.
By adopting the mode, the water stop component is clamped and fixed through the connecting part arranged on the water stop clamp, the radial position of the water stop is regulated through the relative movement between the connecting part and the fixing part, and the longitudinal position of the water stop is regulated through the relative movement between the connecting part and the water stop, so that the position of the water stop component is effectively regulated, and the problem of difficult positioning is solved; the relative position relation between the water stop and the construction joint is observed through the position adjustment of the water stop, so that the center of the water stop is ensured to be approximately coincident with the center of the construction joint, and the water stop has good water stop effect; by adopting the construction step fixed mounting water stop belt of the scheme, the problems of serious distortion and inconvenient splicing of the existing water stop component are solved, the water stop component is straight and not distorted, meanwhile, connection is convenient, and the engineering quality and engineering safety of the tunnel waterproof construction are ensured.
Further, when the inverted arch trestle is adopted for tunnel construction, before the step of installing the connecting part of the water stop clamp, the inverted arch trestle is firstly positioned, so that the relative position relation of the water stop is conveniently determined, and the positioning accuracy of the water stop is ensured.
Claims (8)
1. The water stop clamp is characterized by comprising a fixing part and a connecting part, wherein the fixing part is used for being installed on a side wall edge of a tunnel, the connecting part is connected with the fixing part and extends to the upper part of a concrete pouring area, an installation structure for connecting a water stop is arranged on the connecting part, the relative position between the water stop and the connecting part is adjustable, so that after the water stop is connected with the connecting part, the water stop corresponds to a construction joint, and the water stop is a metal plate water stop;
the connecting part comprises a cross beam connected with the fixing part, the cross beam is arranged approximately horizontally, the end part of the cross beam is connected with a longitudinal beam which is arranged approximately vertically, the mounting structure is a vertical strip-shaped hole formed in the longitudinal beam, and a fastener for mounting the water stop belt on the longitudinal beam is arranged on the vertical strip-shaped hole; the vertical strip-shaped holes are formed in the longitudinal beams which are arranged in the vertical direction, so that the water stop strip can move up and down along the vertical direction strip-shaped holes after being mounted on the longitudinal beams, the position of the water stop strip in the vertical direction is adjusted, and the water stop strip is positioned;
the connecting portion comprises a cross beam connected with the fixing portion and a clamping member arranged at the end part of the cross beam, the clamping member comprises a first clamping piece and a second clamping piece, a clamping groove for placing the water stop belt is formed between the first clamping piece and the second clamping piece, the mounting structure is a fixing piece connected to the second clamping piece, and the fixing piece can be screwed into the first clamping piece and tightly presses the water stop belt on the first clamping piece.
2. The water stop clamp according to claim 1, wherein the fixing portion is a stand column detachably mounted on a side wall template of the tunnel, and a mounting hole for a connecting portion is formed in the stand column.
3. The water stop clamp according to claim 2, wherein the upright is a rectangular structure formed by butt-jointing two U-shaped steel grooves, the cross section of the rectangular structure is a rectangular ring, and the mounting holes are arranged on two side surfaces of the upright along the longitudinal direction of the tunnel.
4. The waterstop fixture of claim 1, wherein the cross beam and clamping member are angle steel.
5. A waterstop fixture as claimed in any one of claims 1 to 3, wherein the waterstop is provided with extensions at both ends thereof which are biased towards opposite sides of the tunnel sidewall formwork.
6. A tunnel longitudinal water stop structure comprising a metal plate-shaped water stop arranged along the tunnel longitudinal direction, wherein a plurality of water stop clamps according to any one of claims 1-5 are arranged along the length direction of the metal plate-shaped water stop, the water stop clamps are arranged on a tunnel side wall formwork, the center line of the metal plate-shaped water stop is approximately coincident with the center line of a construction joint, the radial position of the metal plate-shaped water stop is allowed to deviate by +/-50 mm, and the longitudinal direction is allowed to deviate from the center by +/-30 mm.
7. The tunnel longitudinal water stop structure according to claim 6, further comprising a water-swellable water stop disposed at the construction joint, the water stop being disposed outside the sheet metal water stop.
8. A construction method of a tunnel longitudinal water stop structure, characterized in that when a metal plate-shaped water stop is fixed by the water stop clamp according to any one of claims 1 to 7, the fixing part and the connecting part of the water stop clamp are arranged to be connected in a relatively movable manner, and the construction process comprises the following steps:
a. a fixing part for installing the water stop clamp;
b. measuring lofting, and determining the installation position of the water stop belt;
c. installing a connecting part of the water stop clamp;
d. positioning and clamping the water stop, adjusting the extension length of the connecting part of the water stop clamp according to the mounting position of the water stop, and simultaneously adjusting the relative position of the water stop and the connecting part, and fixing the water stop after the adjustment is completed;
e. pouring concrete;
f. and (3) dismantling the water stop clamp, and dismantling the water stop clamp and cleaning after concrete is poured and solidified so as to facilitate the next repeated use.
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| CN201711425278.3A CN108005692B (en) | 2017-12-25 | 2017-12-25 | Water stop clamp, tunnel longitudinal water stop structure and construction method |
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| CN108005692A CN108005692A (en) | 2018-05-08 |
| CN108005692B true CN108005692B (en) | 2023-09-26 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594662B (en) * | 2019-01-16 | 2024-01-30 | 中建八局第一建设有限公司 | Method for fixing embedded water stop and clamp device thereof |
| CN110017154B (en) * | 2019-03-29 | 2021-07-30 | 陕西铁路工程职业技术学院 | Combined positioning clamp for construction of construction joint based on tunnel secondary lining end |
| CN110487153B (en) * | 2019-09-11 | 2024-05-10 | 中建八局轨道交通建设有限公司 | Device and method for rechecking and measuring installation and reinforcement spacing of buried water stop |
| CN110468877B (en) * | 2019-09-12 | 2024-08-13 | 成都交投建筑工业化有限公司 | Water stop section forming component on electric power pipe gallery pipe joint and method for preparing standardized pipe joint |
| CN110924993A (en) * | 2019-12-27 | 2020-03-27 | 山东鲁桥建设有限公司 | Tunnel buried water stop fixing device and construction method |
| CN114294026A (en) * | 2021-12-24 | 2022-04-08 | 中铁十六局集团第三工程有限公司 | Bury formula waterstop positioner in tunnel |
| CN114960771B (en) * | 2022-06-27 | 2023-07-04 | 中国十九冶集团有限公司 | Waterproof construction method for construction joint |
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| JP2009228391A (en) * | 2008-03-25 | 2009-10-08 | Ohbayashi Corp | Tunnel construction method, inner mold, tunnel lining body, and tunnel structure |
| CN105821908A (en) * | 2016-04-12 | 2016-08-03 | 姚攀峰 | Multiple water stop belt, waterproof structure and construction method of waterproof structure |
| JP2017089104A (en) * | 2015-11-02 | 2017-05-25 | 株式会社奥村組 | Structure and method for constructing tunnel lining body |
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| CN207892633U (en) * | 2017-12-25 | 2018-09-21 | 中铁二局第五工程有限公司 | A kind of waterstop fixture and tunnel longitudinal direction water sealing structure |
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| JP2009228391A (en) * | 2008-03-25 | 2009-10-08 | Ohbayashi Corp | Tunnel construction method, inner mold, tunnel lining body, and tunnel structure |
| JP2017089104A (en) * | 2015-11-02 | 2017-05-25 | 株式会社奥村組 | Structure and method for constructing tunnel lining body |
| CN105821908A (en) * | 2016-04-12 | 2016-08-03 | 姚攀峰 | Multiple water stop belt, waterproof structure and construction method of waterproof structure |
| CN107130984A (en) * | 2017-06-19 | 2017-09-05 | 中铁隧道集团二处有限公司 | A kind of tunnel inverted arch waterstop positioning fixture |
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