CN111764430A - Steel-edged rubber water stop for trapezoidal bellmouth of underground pipe gallery and construction method of steel-edged rubber water stop - Google Patents
Steel-edged rubber water stop for trapezoidal bellmouth of underground pipe gallery and construction method of steel-edged rubber water stop Download PDFInfo
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- CN111764430A CN111764430A CN202010525742.1A CN202010525742A CN111764430A CN 111764430 A CN111764430 A CN 111764430A CN 202010525742 A CN202010525742 A CN 202010525742A CN 111764430 A CN111764430 A CN 111764430A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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Abstract
The invention relates to the field of municipal building construction, in particular to a steel-edged rubber water stop for a trapezoidal socket of an underground pipe gallery and a construction method thereof, wherein the steel-edged rubber water stop comprises a steel belt and an integrally formed waterproof area, the waterproof area comprises a deformation part, a stretching part and an anchoring part, the deformation part is provided with an axial extension direction, the deformation part is provided with a peripheral surface extending in the circumferential direction, the deformation part is arranged right opposite to a deformation joint of the underground pipe gallery, the stretching parts are arranged on two sides of the peripheral surface of the deformation part and extend along the radial direction of the deformation part, the anchoring part is arranged at one end part of the stretching part far away from the deformation part, the steel belt is arranged at one end part of the anchoring part far away from the stretching part, the anchoring part and the steel belt on one side of the deformation part are arranged in the trapezoidal socket of the pipe gallery, and the invention utilizes a special template to reinforce and protect the steel-edged rubber water stop, the forming effect is good.
Description
Technical Field
The invention relates to the field of municipal building construction, in particular to a steel-edged rubber water stop for a trapezoidal bellmouth of an underground pipe gallery and a construction method thereof.
Background
The building deformation joint is a joint for vertically separating buildings, which is arranged to avoid deformation, cracking and structural damage of the buildings caused by temperature change, different loads borne by each part of the buildings, difference of structures of adjacent parts of the buildings and influence of earthquake. When the position of the seam is below the low water level line, water seepage is easy to occur, so that technical treatment needs to be carried out on the deformation seam, and a water stop is poured in a common mode at present.
The steel-edged rubber water stop can be classified into a buried steel-edged rubber water stop and a back-attached steel-edged rubber water stop according to the use condition. It is commonly used in underground structures and post-cast strip construction. It utilizes the high elasticity of rubber to produce elastic deformation under various pressure loads, thus playing a firm sealing role, effectively preventing water leakage and water seepage of the building structure and playing a role in shock absorption and buffering. The medium-buried steel-edged rubber water stop is a water stop product which is mainly used for being arranged in concrete such as a concrete deformation joint, an expansion joint and the like, and has the capability of adapting to the concrete expansion deformation by using the elasticity and the structural form of rubber materials.
The city underground comprehensive pipe gallery is a structure and an accessory facility which are built in the city underground and used for accommodating two or more types of city engineering pipelines. By integrating various original overground and underground electric power, communication, gas, heat supply, water supply and drainage and other engineering pipelines of a city into a whole and bringing the integrated engineering pipelines into a corridor, the problems of 'aerial spider web' in the city, reduction in road excavation, avoidance of 'road zippers' and the like can be solved. The underground space release system can be managed intensively, the operation cost is reduced, the pipeline safety is guaranteed, and the underground space is released. The cost of repeated repair of the road surface and the maintenance cost of the engineering pipeline are reduced; the integrity of the pavement and the durability of various pipelines are maintained; reduce the contradiction between the pipeline and the urban greening and beautify the urban environment. Is the infrastructure construction direction which accords with the national green and sustainable development.
The underground comprehensive pipe gallery can be said to be a 'life line' of a modern city, provides very perfect important infrastructure for our life, ensures normal work and operation of the city every day, and has more convenient and unified implementation policy for construction and management, the pipeline integrating various projects such as electric power communication and the like is arranged in the tunnel space underground, so that perfect life service is provided for residents more conveniently, the basic requirements of the residents can be completely met when the underground comprehensive pipe gallery is put into use, but also has very important relieving function for the comprehensive bearing capacity of the whole city, greatly facilitates the comprehensive management and use of municipal facilities such as electric power, communication, water supply and drainage and the like, the pipeline is planned and managed in a unified mode, time and labor cost wasted in work maintenance are greatly reduced, and working efficiency of management functional departments is improved.
When the buried steel-edged rubber water stop is installed and constructed, part or all of the water stop is buried in concrete in the concrete pouring process, and the tear strength of the water stop is 3-5 times lower than the tensile strength, so that once the water stop is punctured or torn, a crack can be enlarged without a large external force, and in the positioning and concrete pouring processes of the steel-edged rubber water stop, the positioning method and the pouring and tamping pressure must be paid attention to prevent the water stop from being punctured and influencing the water stop strength and the water stop effect. The buried steel-edge rubber water stop has to adopt reliable and proper fixing measures to prevent the steel-edge rubber water stop from being torn and from being twisted and dislocated when concrete is poured, and the correct position of the water stop in the concrete must be ensured. When the trapezoidal bellmouth movement joint of underground pipe gallery structure is under construction, if only prop up the template 6 of establishing the movement joint side, not consolidate it in the reservation of steel limit rubber waterstop is pre-buried, the fixed positional deviation of steel limit rubber waterstop is big after the structure shaping to cause later stage to handle repeatedly, the finished product protection is not in place, increase construction cost.
Disclosure of Invention
The technical scheme solves the problem that the steel-edged rubber water stop is not well protected due to the fact that the steel-edged rubber water stop is not reinforced in the reserved pre-embedding of the steel-edged rubber water stop, and the steel-edged rubber water stop and the construction method thereof utilize a special template, can be used for reinforcing and protecting the steel-edged rubber water stop while a deformation joint side template is erected, and are good in forming effect.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a steel limit rubber waterstop for trapezoidal bellmouth of underground pipe corridor, includes steel band and integrated into one piece's waterproof district, waterproof district includes deformation portion, tensile portion and anchor portion, the deformation portion has axial extending direction, and the deformation portion has the outer peripheral face that circumference extends, and the deformation portion just sets up to the movement joint of underground pipe gallery, tensile portion sets up in the both sides of deformation portion outer peripheral face, and sets up along the radial extension of deformation portion, the one end tip of deformation portion is kept away from in the setting of anchor portion in the deformation portion, the one end tip of tensile portion is kept away from in the anchor portion in the steel band setting, and tensile portion, anchor portion and the steel band setting that are located deformation portion one side are in the trapezoidal mouth of pipe gallery.
As a preferable scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, a deformation hole extending along the axial direction of the deformation part penetrates through the center of the deformation part.
As an optimal scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, a certain included angle is formed between the stretching parts at the two sides of the deformation part, and a certain included angle is formed between the anchoring part and the stretching parts.
As a preferred scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, a dovetail boss is arranged at one end, away from the stretching part, of the anchoring part, and the steel belt is connected with the anchoring part.
As a preferred scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, the dovetail boss is provided with an auxiliary deformation hole which extends along the axial direction of the deformation part.
As a preferred scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, the anchoring part is provided with an axially extending reinforcing rib, and the longitudinal section of the reinforcing rib is one or more of a type, a model and a rectangle.
As a preferred scheme of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, the dovetail boss is provided with at least one fixing thorn which radially extends along the deformation part, and the fixing thorn is arranged on the periphery of the auxiliary deformation hole.
The construction method of the steel-edged rubber water stop for the ladder-shaped bellmouth of the underground pipe gallery comprises the following steps:
manufacturing a template;
determining the position and the size of the deformation joint, marking by taking a perpendicular line at the deformation joint as a critical line, and installing a positioning bracket;
binding a reinforcement at the socket of the underground pipe gallery and an additional steel bar according to the position of the marked position to form a reinforcement framework, and binding a cushion block on the reinforcement framework;
installing a template according to the position of the cushion block;
installing a steel-edged rubber water stop according to the position of the template;
forming a mounting hole on the template, mounting a split bolt at the mounting hole, and welding one end of the split bolt with the additional steel bar;
welding a longitudinal fixing piece at the other end of the split bolt;
adjusting the split bolts to enable the deformation holes of the steel-edged rubber water stop to be overlapped with the vertical lines of the deformation joints;
pouring concrete, and stopping pouring when the strength of the concrete reaches the strength;
removing the template and the additional steel bars;
pouring concrete to the deformation joint;
and (5) removing the longitudinal fixing piece and pouring the water-facing slope surface.
As an optimal scheme of the construction method of the steel-edged rubber water stop for the trapezoidal bellmouth of the underground pipe gallery, the template comprises a top layer template and a bottom layer template, at least one partition plate is arranged on each of the top layer template and the bottom layer template, and the mounting holes are formed between every two adjacent partition plates.
As an optimal scheme of the construction method of the steel-edged rubber water stop for the trapezoidal socket of the underground pipe gallery, the rubber water stop is installed according to the position of a template, and the method specifically comprises the following steps:
one side of the steel-edged rubber water stop is abutted against the working surface of the bottom formwork of the formwork, so that the center line of the steel-edged rubber water stop is aligned with the side surface of the bottom formwork;
and the working surface of the top layer template of the template is abutted against the other surface of the steel-edge water stop belt, so that the central line of the steel-edge rubber water stop belt is ensured to be on a vertical plane with the side surfaces of the bottom layer template and the top layer template.
Compared with the prior art, the invention has the beneficial effects that:
this steel limit rubber waterstop adopts special design, and the anchor portion that the mutual slope set up is convenient for stretch in whole the formula rubber waterstop of burying to effectual absorption tensile force prevents this steel limit rubber waterstop fracture. When the structure of the two sides of the deformation joint of the building is not uniformly settled, the steel-edge rubber water stop belt is subjected to transverse tension, the good stretching shape and elasticity of rubber are utilized, and the included angle between the stretching part and the anchoring part is leveled, so that the steel-edge rubber water stop belt can stretch along with the deformation of the deformation joint, the steel-edge rubber water stop belt cannot be pulled and cracked due to the overlarge deformation of the deformation joint, and the problem of water leakage caused by the pulling and cracking of the water stop belt can be effectively solved. Be equipped with on the forked tail boss along the vice deformation hole of deformation portion axial extension, vice deformation hole is the same with the deformation hole effect, can increase the holistic resistance of this steel limit rubber waterstop and become and stretch along the nature. The strengthening rib can also increase this steel limit rubber waterstop and the area of contact of concreting, makes anchor portion and concreting be connected closely, makes anchor portion move along with whole movement joint together.
When the steel-edge rubber waterstop is constructed, a template for positioning the steel-edge rubber waterstop is processed and manufactured according to the requirements of design drawings. And determining the position and the size of the deformation joint, marking by taking a vertical line at the deformation joint as a critical line, and installing a positioning bracket, wherein the positioning bracket can also be a part of a building according to different installation positions, such as a water slope surface of a pipe gallery socket, a concrete ground, a platform and the like. According to the position of the marked part, binding a reinforcement and an additional reinforcement at the socket of the underground pipe gallery to form a reinforcement framework, and binding a cushion block on the reinforcement framework. The elevation of the bottom of the steel-edge waterstop is measured firstly, and then the reinforcing steel bars and the additional reinforcing steel bars at the socket of the underground pipe gallery are installed. And installing the template according to the position of the cushion block, and binding the template on the reinforcing bars. According to the position of the template, one side of the steel-edge rubber water stop is abutted against the working surface of the bottom template of the template, so that the center line of the steel-edge rubber water stop is aligned with the side surface of the bottom template, the working surface of the top template of the template is abutted against the other side of the steel-edge water stop, and the center line of the steel-edge rubber water stop, the side surfaces of the bottom template and the top template are all in a vertical plane. And simultaneously splicing the steel-edged rubber water stop at the top layer, the bottom layer and the side edges of the whole pipe gallery socket. After accomplishing, open the mounting hole on the template, to the stay bolt in mounting hole department installation to wherein one end and the additional reinforcement of stay bolt weld, with stay bolt and additional reinforcement welding, transversely set up the stay bolt, and at the tip installation cone of stay bolt, the position requirement of cone is: and after concrete is poured outside the steel bar framework, the cone is positioned outside the concrete surface. The method comprises the steps of welding longitudinal fixing pieces at the other ends of split bolts, adjusting the split bolts next, enabling deformation holes of the steel-edge rubber water stop belts to coincide with vertical lines of deformation joints, placing the two longitudinal fixing pieces between a bottom layer template, a top layer template and the split bolts, then conducting elevation and position rechecking after fastening and fixing buckles of the split bolts, conducting position inspection on the steel-edge rubber water stop belts, the top layer template and the bottom layer template, ensuring that after deformation hole circular rings of the steel-edge rubber water stop belts coincide with the vertical lines of the deformation joints, screwing the split bolts completely, reinforcing the whole template, and conducting the next process after rechecking is correct. And erecting a casting mold outside the steel reinforcement framework to prepare for casting concrete. And pouring concrete, when the strength of the concrete reaches the strength, the strength of the concrete reaches more than% of the designed strength, stopping pouring, removing the template and the additional steel bars, continuing pouring the concrete to a deformation joint, removing the longitudinal fixing piece, and pouring the water-facing slope surface to finish the pouring work of the steel-edge rubber water stop belt at the pipe gallery socket.
The steel-edge rubber water stop and the construction method thereof can be used for reinforcing the steel-edge rubber water stop and protecting a finished product while erecting the deformation joint side formwork, have a good forming effect, and solve the problems of large position deviation of the steel-edge rubber water stop and difficulty in protecting the finished product during the construction of the trapezoidal bellmouth of the deformation joint of the underground pipe gallery.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is an enlarged schematic view at B of FIG. 2;
FIG. 5 is a schematic view of the present invention installed at the top socket of a pipe gallery;
FIG. 6 is a schematic view of the present invention installed at the bottom socket of a pipe gallery;
FIG. 7 is a schematic view of the present invention at the top socket of the tube lane;
FIG. 8 is a side view of the present invention at the top socket of a tube lane;
FIG. 9 is a schematic diagram of a template used in the present invention;
FIG. 10 is a flow chart of the construction method of the present invention;
fig. 11 is a schematic flow chart of S500) in the present invention.
The reference numbers in the figures are:
1-a steel belt;
2-a waterproof area;
3-a deformation portion; 3 a-deformation hole;
4-a stretching section;
5-an anchoring portion; 5 a-dovetail boss; 5a 1-secondary deformation hole; 5a 2-fixed thorn; 5 b-reinforcing ribs;
6-template; 6 a-a separator; 6 b-mounting holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The steel-edge water stop (also called steel-edge rubber water stop) is a rubber water stop with a non-equal-thickness section and is divided into a strong area and a waterproof area, so that all parts are uniformly and reasonably stressed. The steel plate of the water stop is additionally provided with the mounting hole which is connected with the reinforcing bar, so that the water stop is firm in fixation and not easy to displace, and all parts are uniformly and reasonably stressed. The long wall of the telescopic hole of the steel-edged water stop is a plane, so that the clamping contact surface of a plate mold is large when the water stop is constructed, and the water stop is not easy to dislocate; the steel plate is additionally provided with a mounting hole which is connected with the reinforcing bar, so that the steel plate is firm in fixation and not easy to displace. The steel edge rubber water stop adopts a rubber water stop product with a non-uniform thickness structure on the cross section and divided into a strong area and a waterproof area, and the steel edge rubber water stop enables all parts to be stressed uniformly and reasonably. The steel-edged rubber water stop is firmly fixed and is not easy to displace by additionally arranging the mounting holes on the steel plate and connecting the steel plate with the reinforcing bars, so that all parts are uniformly and reasonably stressed. The long wall of the telescopic hole is a plane, and the clamping contact surface of the plate mold is large when the water stop belt is constructed, so that the water stop belt is not easy to dislocate; the steel plate is additionally provided with a mounting hole which is connected with the reinforcing bar, so that the steel plate is firm in fixation and not easy to displace. The galvanized steel plate is well bonded with concrete, and the steel-edged rubber waterstop ensures better waterproof performance. The product adopts galvanization as raw material, and the produced steel-edged rubber composite water stop can basically overcome the defects of a pure rubber bridge type water stop. The composite water stop belt has double functions of prolonging the path and delaying the water seepage speed, and the galvanized steel edge has good adhesion to the concrete, so that the water stop belt can bear large tensile force and torsion, the phenomena of looseness and falling-off cannot occur in the effective deformation range of the concrete of the rubber water stop belt, and the water stop effect is improved.
Referring to fig. 1 and 3, the steel-edged rubber water stop includes a steel strip 1 and an integrally formed waterproof region 2, the waterproof region 2 includes a deformation portion 3, a stretching portion 4 and an anchoring portion 5, the deformation portion 3 has an axial extending direction, the deformation portion 3 has a circumferentially extending outer circumferential surface, the deformation portion 3 is disposed right opposite to a deformation joint of the underground pipe gallery, the stretching portions 4 are disposed at two sides of the outer circumferential surface of the deformation portion 3, that is, the two stretching portions 4 are disposed in mirror image with respect to a symmetric plane of the steel-edged rubber water stop and extend along a radial direction of the deformation portion 3, and a certain included angle is formed between the stretching portions 4 at two sides of the deformation portion 3. Anchor portion 5 sets up the one end tip of keeping away from deformation portion 3 in tensile portion 4, has certain contained angle between anchor portion 5 and the tensile portion 4, and steel band 1 sets up the one end tip of keeping away from tensile portion 4 in anchor portion 5, and tensile portion 4, anchor portion 5 and the steel band 1 that are located deformation portion 3 one side set up in the trapezoidal socket of piping lane.
Referring to fig. 4, a deformation hole 3a extending along the axial direction of the deformation portion 3 is formed through the center of the deformation portion 3, and the deformation hole 3a can increase the resistance and elongation of the steel-edged rubber water stop.
Referring to fig. 3, a dovetail boss 5a is provided at an end of the anchor portion 5 away from the stretching portion 4, the steel strip 1 is connected to the anchor portion 5, a secondary deformation hole 5a1 extending in the axial direction of the deformation portion 3 is provided on the dovetail boss 5a, and the secondary deformation hole 5a1 has the same function as the deformation hole 3a, so that the resistance and elongation of the steel-edged rubber water stop can be increased.
Be equipped with axially extended strengthening rib 5b on anchor portion 5, the strengthening rib 5b that sets up on two anchor portions 5 that are located the 3 both sides of portion of warping also is the plane of symmetry mirror setting about this steel limit rubber waterstop, the longitudinal section of strengthening rib 5b is the I type, the T type, one or more in the rectangle, strengthening rib 5 b's setting has not only greatly increased the compressive capacity of anchor portion 5, and make steel limit rubber waterstop can not shift because of warping under the high pressure, and have good stagnant water ability, thereby waterproof effect between gaps such as construction joint and expansion joint has been guaranteed. The reinforcing rib 5b can also increase the contact area of the steel-edged rubber water stop and the poured concrete, so that the anchoring part 5 is tightly connected with the poured concrete, and the anchoring part 5 moves along with the whole deformation joint.
In this embodiment, can also set up the rib on anchoring portion 5, not only strengthen the structural strength of this steel limit rubber waterstop through the rib subassembly, still make this steel limit rubber waterstop more firm with the wall body laminating, the leakproofness is better, has avoided producing the gap when fixed rubber waterstop, the phenomenon of leaking appears.
Referring to fig. 2 and 3, the dovetail boss 5a is provided with at least one fixing pin 5a2 extending along the radial direction of the deformation portion 3, and the fixing pin 5a2 is disposed at the periphery of the secondary deformation hole 5a 1. The arrangement of the fixing thorns 5a2 increases the contact area of the steel edge rubber water stop band and the poured concrete, so that the dovetail bosses 5a are tightly connected with the poured concrete.
When the construction, two anchor portion 5 can incline each other and set up, and the anchor portion 5 that inclines each other and set up is convenient for whole bury formula rubber waterstop and is convenient for stretch to effectual absorption tensile force prevents this steel limit rubber waterstop fracture. When the structure of the two sides of the deformation joint of the building is not uniformly settled, the steel-edge rubber water stop belt is subjected to transverse tension, the good stretching shape and elasticity of rubber are utilized, and the included angle between the stretching part 4 and the anchoring part 5 is leveled, so that the steel-edge rubber water stop belt can stretch along with the deformation of the deformation joint, the steel-edge rubber water stop belt cannot be pulled and cracked due to the overlarge deformation of the deformation joint, and the problem of water leakage caused by the pulling and cracking of the water stop belt can be effectively solved.
Referring to fig. 5 to 10, the construction method of the steel-edged rubber waterstop includes the following steps:
s100) manufacturing a template 6, processing and manufacturing the template 6 for positioning the steel-edge rubber water stop according to the requirements of design drawings, wherein the template 6 comprises a top layer template and a bottom layer template, at least one partition plate 6a is arranged on each of the top layer template and the bottom layer template, and a mounting hole 6b is formed between every two adjacent partition plates 6 a.
S200) determining the position and the size of the deformation joint, marking by taking a perpendicular line at the deformation joint as a critical line, and installing a positioning bracket, wherein the positioning bracket can also be a part of a building, such as a water slope surface of a pipe gallery socket, a concrete ground, a platform and the like according to different installation positions.
S300) binding a reinforcement and an additional reinforcement at the socket of the underground pipe gallery according to the position of the marked part to form a reinforcement framework, and binding a cushion block on the reinforcement framework. The elevation of the bottom of the steel-edge waterstop is measured firstly, and then the reinforcing steel bars and the additional reinforcing steel bars at the socket of the underground pipe gallery are installed.
S400), installing the template 6 according to the position of the cushion block, and binding the template 6 on the reinforcing bars.
S500) installing a steel-edged rubber water stop according to the position of the template 6, specifically, referring to fig. 11, S500) includes:
s501) one side of the steel-edged rubber water stop is abutted against the working surface of the bottom formwork of the formwork 6, so that the center line of the steel-edged rubber water stop is aligned with the side surface of the bottom formwork.
S502) the working surface of the top formwork of the formwork 6 is abutted against the other surface of the steel-edge water stop belt, and the central line of the steel-edge rubber water stop belt is ensured to be on a vertical plane with the side surfaces of the bottom formwork and the top formwork.
S600) open mounting hole 6b on template 6, install split bolt in mounting hole 6b department to one of them one end and the additional reinforcement welding of split bolt, with split bolt and additional reinforcement welding, the split bolt transversely sets up, and at the tip installation cone of split bolt, the position requirement of cone is: and after concrete is poured outside the steel bar framework, the cone is positioned outside the concrete surface.
S700) welding a longitudinal fixing piece at the other end of the split bolt.
S800) adjusting the split bolts to enable the deformation holes 3a of the steel edge rubber water stop to coincide with the vertical lines of the deformation joints, placing two longitudinal fixing pieces between the bottom layer template, the top layer template and the split bolts, then screwing the buckles of the split bolts tightly and fixing the buckles tightly, rechecking the elevation and the position, carrying out position inspection on the steel edge rubber water stop, the top layer template and the bottom layer template, and completely screwing each pair of split bolts after ensuring that the circular rings of the deformation holes 3a of the steel edge rubber water stop coincide with the vertical lines of the deformation joints to integrally reinforce the template, and carrying out the next process after rechecking is correct. And erecting a casting mold outside the steel reinforcement framework to prepare for casting concrete.
And S900) pouring concrete, and stopping pouring when the strength of the concrete reaches over 80% of the designed strength.
S1000) removing the formwork 6 and the additional reinforcing bars.
S1100) pouring concrete to the deformation joint.
S1200) removing the longitudinal fixing piece, and pouring the water-facing slope.
Referring to fig. 5 to 10, in the construction, the waterproof engineering of the underground pipe gallery is mainly applied to the self-waterproofing of the structure, that is, the waterproofing function is realized by improving the compactness of the concrete construction of the pipe gallery structure. However, the structure of the bell and spigot is irregular, and an aluminum mould is mainly adopted for construction, the aluminum mould is prefabricated in advance in a factory, the shape and size deviation is not easy to adjust, and the structural quality at the position is not easy to guarantee. Therefore, how to ensure the smooth installation of the template 6 at the bell and spigot position, the smooth binding of the reinforcing bars, the accurate positioning, the compactness of concrete pouring of the bell and spigot and the structural flatness after the concrete pouring are finished is an important link for ensuring the waterproof quality of the bell and spigot.
The waterproof detail construction material category at the socket deformation joint is complex, the construction details are many, the operation is difficult in the specific construction, the construction quality at the detail is not easy to control, and the detail part is difficult to control. Therefore, the problems that how to select waterproof materials and the paving and pasting process are relatively proper, and how to make detailed waterproof structures of deformation joints so as to increase guarantee for the waterproof quality of the bell and spigot are important to consider in the construction are solved.
The buried steel edge rubber waterstop adopts a special welding tool for connection, a welding joint, a welding mold, a rubber sheet, a rubber and steel sheet connecting agent, a polishing tool, clean cloth and the like need to be prepared before welding, and the welding method is as follows:
1) cutting off rubber at two ends of the rubber waterstop with the steel edge, namely the positions of about 100mm of each of the straight line section and the cross joint connecting end, and polishing the steel edge smoothly by using a grinding wheel.
2) And leaving a space with the length of 30-40mm in the middle of the lap joint of the two ends of the steel-edged rubber waterstop which need to be welded for welding the joint and connecting the clean rubber sheets. If the raw film is occupied with dust, the raw film needs to be cleaned by cloth or a grinding machine.
3) And (4) coating rubber and a metal binder on two surfaces of the polished smooth steel edge. The welding mould of the steel edge rubber water stop is preheated while the connecting end of the steel edge rubber water stop of the steel plate is processed and polished, and the preheating time is about 30 minutes according to the heating power of the electric heating wire. The temperature of the mold is controlled between 140 ℃ and 150 ℃. When the temperature of the mold is 140 ℃ and 150 ℃ as shown by the thermometer, the next step can be carried out.
4) And lightly placing a top die of the welding die according to the centering hole of the die. The rubber sheet and the welding end are prevented from running in the process of placing the mold top mold, and if the two ends of the steel-edged rubber water stop which need to be welded run in the process, the step needs to be repeated, so that the correct positions of the two ends are ensured to be welded.
5) And pressurizing the placed top die by using a jack. The pressurizing pressure of the jack for the first time is not too large, and the distance between the top die and the bottom die of the die is about 2cm after pressurization. And vulcanizing the rubber sheet for welding the steel-edged rubber water stop for a period of time, and pressurizing the jack for the second time after about 5-10 minutes, wherein the gap of the mold is pressurized to the section of the designed steel-edged rubber water stop by the second time. After pressurization, the mold temperature is kept between 140 ℃ and 150 ℃, and the mold can be opened after about 20-30 minutes.
6) And (3) opening the die, if the raw rubber sheet is not fully fused, the end of the steel plate steel edge rubber waterstop needs to be subjected to hot melting again in the presence of the phenomena of rubber shortage, cracking, layering and the like. And connecting the steel edge joints of the welded steel edge water-stop belts by using nails or steel wires, or firmly welding the steel edges at the joints. And after the temperature is reduced to the normal temperature, the welded steel-edged rubber water stop is installed at the construction joint in a reinforcing way.
When the steel strips on the two sides of the steel-edge rubber water stop are installed, the steel-edge rubber water stop turns at the corner according to the requirement of the radius of R, and the steel strips are kept flat, so that the steel strips are effectively combined with concrete, and a good water stopping effect is achieved. The waterstop should be well protected during transportation, and should be ventilated during storage to avoid direct irradiation of oil stains and sunlight. The buried steel-edged rubber waterstop is firstly placed at a specified position according to the design requirement. The steel-edge rubber waterstop and the reinforcement net of the pipe gallery are tied up and positioned by using iron wires by utilizing the positioning holes at two sides of the steel-edge rubber waterstop, and the steel belts at two sides are higher than the steel-edge rubber waterstop in the middle to form a U-shaped installation when the waterstop is positioned. The template 6 is constructed according to the requirements of construction operation rules strictly, is arranged on the plane between the upper surface and the lower surface of the middle rubber O-shaped ring of the steel-edge water stop belt, and the template 6 is firm and is in need of preventing the template 6 from shifting when concrete pouring and vibrating.
The installed steel-edged rubber waterstop must be protected and supported during construction, and before concrete pouring, the installation position of the steel-edged waterstop is checked to be accurate and fixed firmly, and garbage and sundries around a deformation joint are cleaned.
The working principle of the invention is as follows: this steel limit rubber waterstop adopts special design, and the anchor portion 5 that inclines to each other and set up is convenient for stretch in whole the formula rubber waterstop of burying to effectual absorption tensile force prevents this steel limit rubber waterstop fracture. When the structure of the two sides of the deformation joint of the building is not uniformly settled, the steel-edge rubber water stop belt is subjected to transverse tension, the good stretching shape and elasticity of rubber are utilized, and the included angle between the stretching part 4 and the anchoring part 5 is leveled, so that the steel-edge rubber water stop belt can stretch along with the deformation of the deformation joint, the steel-edge rubber water stop belt cannot be pulled and cracked due to the overlarge deformation of the deformation joint, and the problem of water leakage caused by the pulling and cracking of the water stop belt can be effectively solved. The dovetail boss 5a is provided with an auxiliary deformation hole 5a1 extending along the axial direction of the deformation part 3, and the auxiliary deformation hole 5a1 has the same action with the deformation hole 3a, so that the resistance and the extensibility of the whole steel edge rubber water stop can be increased. The reinforcing rib 5b can also increase the contact area of the steel-edged rubber water stop and the poured concrete, so that the anchoring part 5 is tightly connected with the poured concrete, and the anchoring part 5 moves along with the whole deformation joint.
When the steel-edge rubber waterstop is constructed, a template 6 for positioning the steel-edge rubber waterstop is processed and manufactured according to the requirements of design drawings. And determining the position and the size of the deformation joint, marking by taking a vertical line at the deformation joint as a critical line, and installing a positioning bracket, wherein the positioning bracket can also be a part of a building according to different installation positions, such as a water slope surface of a pipe gallery socket, a concrete ground, a platform and the like. According to the position of the marked part, binding a reinforcement and an additional reinforcement at the socket of the underground pipe gallery to form a reinforcement framework, and binding a cushion block on the reinforcement framework. The elevation of the bottom of the steel-edge waterstop is measured firstly, and then the reinforcing steel bars and the additional reinforcing steel bars at the socket of the underground pipe gallery are installed. And installing the template 6 according to the position of the cushion block, and binding the template 6 on the reinforcing bars. According to the position of the template 6, one side of the steel-edge rubber water stop is abutted against the bottom template working surface of the template 6, so that the center line of the steel-edge rubber water stop is aligned with the side surface of the bottom template, the top template working surface of the template 6 is abutted against the other side of the steel-edge water stop, and the center line of the steel-edge rubber water stop, the side surfaces of the bottom template and the top template are all in a vertical plane. And simultaneously splicing the steel-edged rubber water stop at the top layer, the bottom layer and the side edges of the whole pipe gallery socket. After the completion, open mounting hole 6b on template 6, at mounting hole 6b department installation split bolt to one of them one end and the additional reinforcement welding of split bolt, with split bolt and additional reinforcement welding, the split bolt transversely sets up, and at the tip installation cone of split bolt, the position requirement of cone is: and after concrete is poured outside the steel bar framework, the cone is positioned outside the concrete surface. Welding longitudinal fixing pieces at the other ends of the split bolts, adjusting the split bolts to enable the deformation holes 3a of the steel edge rubber water stop belts to coincide with the vertical lines of the deformation joints, placing the two longitudinal fixing pieces between the bottom layer template, the top layer template and the split bolts, then performing elevation and position rechecking after fastening and fixing the buckles of the split bolts, performing position inspection on the steel edge rubber water stop belts, the top layer template and the bottom layer template, and completely screwing each pair of the split bolts after ensuring that the circular rings of the deformation holes 3a of the steel edge rubber water stop belts coincide with the vertical lines of the deformation joints, so that the templates are integrally reinforced, and performing the next process after rechecking is correct. And erecting a casting mold outside the steel reinforcement framework to prepare for casting concrete. And pouring concrete, stopping pouring when the strength of the concrete reaches over 80 percent of the designed strength, removing the template 6 and the additional steel bars, continuously pouring the concrete to a deformation joint, removing the longitudinal fixing piece, pouring the water-facing slope surface, and finishing the pouring work of the steel-edge rubber water stop belt at the pipe gallery socket.
The steel-edge rubber water stop and the construction method thereof can be used for reinforcing the steel-edge rubber water stop and protecting a finished product while erecting the deformation joint side formwork, have a good forming effect, and solve the problems of large position deviation of the steel-edge rubber water stop and difficulty in protecting the finished product during the construction of the trapezoidal bellmouth of the deformation joint of the underground pipe gallery.
Claims (10)
1. A steel side rubber waterstop for a ladder-shaped bellmouth of an underground pipe gallery is characterized by comprising a steel belt (1) and an integrally formed waterproof area (2), the waterproof zone (2) comprises a deformation part (3), a stretching part (4) and an anchoring part (5), the deformation part (3) has an axial extension direction, the deformation part (3) has a peripheral surface extending in the circumferential direction, the deformation part (3) is arranged right opposite to a deformation joint of the underground pipe gallery, the stretching parts (4) are arranged on two sides of the outer peripheral surface of the deformation part (3), and arranged to extend in the radial direction of the deformation portion (3), the anchoring portion (5) is arranged at one end portion of the stretching portion (4) far away from the deformation portion (3), the steel strip (1) is arranged at the end part of one end, far away from the stretching part (4), of the anchoring part (5), and the stretching part (4), the anchoring part (5) and the steel strip (1) which are positioned on one side of the deformation part (3) are arranged in the trapezoidal socket of the pipe gallery.
2. The steel-edged rubber waterstop for the ladder-shaped bellmouth of an underground pipe gallery according to claim 1, characterized in that a deformation hole (3a) extending in the axial direction of the deformation part (3) is provided through the center of the deformation part (3).
3. The steel-edged rubber waterstop for the ladder-shaped bellmouth of an underground pipe gallery according to claim 2, characterized in that an included angle is formed between the stretching portions (4) on both sides of the deformation portion (3) and an included angle is formed between the anchoring portion (5) and the stretching portions (4).
4. The steel-edged rubber waterstop for the trapezoid socket of the underground pipe gallery according to claim 3, wherein a dovetail boss (5a) is provided at one end of the anchoring portion (5) away from the stretching portion (4), and the steel strip (1) is connected with the anchoring portion (5).
5. The steel-edged rubber waterstop for the trapezoid socket of an underground pipe gallery according to claim 4, characterized in that the dovetail boss (5a) is provided with a secondary deformation hole (5a1) extending in the axial direction of the deformation portion (3).
6. The steel-edged rubber waterstop for the ladder-shaped bellmouth of an underground pipe gallery according to claim 5, characterized in that the anchoring portion (5) is provided with an axially extending reinforcing rib (5b), and the longitudinal section of the reinforcing rib (5b) is one or more of I-shaped, T-shaped and rectangular.
7. The steel-edged rubber waterstop for the trapezoid socket of an underground pipe gallery according to claim 6, characterized in that the dovetail boss (5a) is provided with at least one fixing barb (5a2) extending in the radial direction of the deformation part (3), and the fixing barb (5a2) is arranged at the periphery of the secondary deformation hole (5a 1).
8. A construction method of a steel-edged rubber water stop for a trapezoidal bellmouth of an underground pipe gallery is characterized by comprising the following steps:
manufacturing a template (6);
determining the position and the size of the deformation joint, marking by taking a perpendicular line at the deformation joint as a critical line, and installing a positioning bracket;
binding a reinforcement at the socket of the underground pipe gallery and an additional steel bar according to the position of the marked position to form a reinforcement framework, and binding a cushion block on the reinforcement framework;
installing a template (6) according to the position of the cushion block;
installing a steel-edged rubber water stop according to the position of the template (6);
mounting holes (6b) are formed in the template (6), split bolts are mounted at the mounting holes (6b), and one ends of the split bolts are welded with the additional steel bars;
welding a longitudinal fixing piece at the other end of the split bolt;
adjusting the split bolts to enable deformation holes (3a) of the steel-edged rubber water stop to be overlapped with the vertical lines of the deformation joints;
pouring concrete, and stopping pouring when the strength of the concrete reaches the strength;
removing the template (6) and the additional steel bars;
pouring concrete to the deformation joint;
and (5) removing the longitudinal fixing piece and pouring the water-facing slope surface.
9. The construction method of the steel-edged rubber water stop for the ladder-shaped bellmouth of the underground pipe gallery according to claim 8, characterized in that the templates (6) comprise a top template and a bottom template, at least one partition plate (6a) is arranged on each of the top template and the bottom template, and the installation holes (6b) are arranged between the adjacent partition plates (6 a).
10. The construction method of the steel-edged rubber water stop for the ladder-shaped bellmouth of the underground pipe gallery according to claim 9, characterized in that the installation of the rubber water stop according to the position of the template (6) specifically comprises:
one side of the steel-edged rubber water stop is abutted against the working surface of the bottom formwork of the formwork (6), so that the center line of the steel-edged rubber water stop is aligned with the side surface of the bottom formwork;
and the working surface of the top layer template of the template (6) is abutted against the other surface of the steel-edge water stop belt, so that the central line of the steel-edge rubber water stop belt is ensured to be on a vertical plane with the side surfaces of the bottom layer template and the top layer template.
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| CN202010525742.1A CN111764430A (en) | 2020-06-10 | 2020-06-10 | Steel-edged rubber water stop for trapezoidal bellmouth of underground pipe gallery and construction method of steel-edged rubber water stop |
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| CN112459127A (en) * | 2020-11-27 | 2021-03-09 | 中国一冶集团有限公司 | Embedded steel edge waterstop structure in cast-in-place pipe gallery expansion joint and construction method |
| CN114718121A (en) * | 2022-03-04 | 2022-07-08 | 北京万兴建筑集团有限公司 | Fixing method for trapezoidal bellmouth steel edge rubber water stop belt of underground pipe gallery structure deformation joint |
| CN115846349A (en) * | 2022-12-09 | 2023-03-28 | 科领环保股份有限公司 | Rigid landfill |
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Application publication date: 20201013 |