WO2022199415A1 - Anti-leakage construction method for bottomless bolt connection type water tank - Google Patents

Anti-leakage construction method for bottomless bolt connection type water tank Download PDF

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Publication number
WO2022199415A1
WO2022199415A1 PCT/CN2022/080719 CN2022080719W WO2022199415A1 WO 2022199415 A1 WO2022199415 A1 WO 2022199415A1 CN 2022080719 W CN2022080719 W CN 2022080719W WO 2022199415 A1 WO2022199415 A1 WO 2022199415A1
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WIPO (PCT)
Prior art keywords
angle steel
tank
concrete
ring
ring wall
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PCT/CN2022/080719
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French (fr)
Chinese (zh)
Inventor
王瑞军
王晓斌
尹振国
殷敏杰
刘培志
白骥川
边卫东
荣锦涛
刘斌
马树彬
刘小龙
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中化二建集团有限公司
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Publication of WO2022199415A1 publication Critical patent/WO2022199415A1/en

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/38—Foundations for large tanks, e.g. oil tanks
    • 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
    • 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
    • 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
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete

Definitions

  • the invention belongs to the field of storage tank equipment installation, in particular to an anti-leakage construction method for a bottomless bolt-connected water tank.
  • the traditional water tank material is steel plate, and welding is used between the tank bottom and the tank wall.
  • Steel storage tanks have long construction periods, high installation costs, poor anti-corrosion effects, and short service periods.
  • a large number of new special organic plastics, inorganic composite materials and metal materials with non-metallic coating on the surface are used in the installation of water tanks. These materials basically cannot be welded, and are generally bolted or glued.
  • Bolted water tanks are usually bottomless, and these new materials have smooth surfaces and are directly grouted with non-shrinking fine stone concrete, which is prone to water seepage problems.
  • the purpose of the present invention is to provide an anti-leakage construction method for a bottomless bolted water tank, so as to realize the sealing problem between the bottom ring wall plate and the foundation of the bottomless bolted water tank and avoid leakage of the water tank foundation.
  • a bottomless bolt-connected water tank anti-leakage construction method comprising:
  • Step 1 pouring the concrete foundation of the bolted water tank with the concave grouting groove
  • Step 2 Assemble the bottom ring wall panels, apply waterproof sealant to the lap joints between the bottom ring wall panels and install connecting bolts;
  • Step 3 While assembling the bottom ring wall plate, install the bottom angle steel ring along the lower edge of the bottom ring wall plate, apply waterproof sealant to the overlap between the bottom ring wall plate and the bottom angle steel ring, and install connecting bolts;
  • Step 4 after the connection between the bottom ring wall plate and the bottom angle steel ring is completed, a thin horn is installed between the bottom angle steel ring and the upper surface of the concave grouting groove concrete for leveling the water tank wall plate;
  • Step 5 After the levelness of the bottom ring wall plate is accepted, press the angle steel fixing card on the horizontal edge of the bottom angle steel ring, and fix the angle steel fixing card on the bottom of the concave grouting groove with expansion bolts, so that the angle steel fixing card compresses the bottom angle steel ring;
  • Step 6 paste the water stop tape above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring;
  • Step 7 Paste a circle of water-stop tape on the middle of the inner side wall of the concrete concave grouting groove
  • Step 8 After the installation of the water-stop tape is completed, the inner side of the tank wall and the outer side of the tank wall of the concave grouting tank are grouted with concrete for secondary grouting.
  • the concrete foundation with a concave grouting groove includes a concrete foundation, a concave grouting groove and a polygonal concrete ring wall; the concave grouting groove is annularly formed on the edge of the concrete foundation, and the polygonal concrete ring wall is constructed in the concave grouting groove. outside.
  • step 2 rinse the concrete foundation and the concave grouting tank with clean water under pressure, then clean the inside of the concave grouting tank, and finally dry the flushing water in the concave grouting tank with compressed air.
  • step 2 use a level to measure the installation elevation of the bottom angle steel in the concave grouting groove, and in the clockwise direction in the concave grouting groove, mark the inner side wall of the groove every 30 degrees of rotation, which is used for the bottom ring of the water tank. Control of siding installation elevation.
  • the thickness of the thin horns is 0.1mm to 1mm, the number of each group is generally 2 to 12, and is made of corrosion-resistant stainless steel; three groups of thin horns are installed under each bottom ring wall plate.
  • step 6 two circles of water stop tape are pasted above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring, the upper circle is a bentonite water stop tape, and the lower circle is a water stop tape.
  • the concrete is a fine stone concrete containing an impermeable agent and an expansion agent.
  • the upper surface of the inner side of the tank wall of the concave grouting tank and the surface of the foundation leveling layer in the water tank are painted with waterproof paint.
  • the leveling and fixing combination structure of the bottom ring wall plate adopted in the present invention can enhance the stability of the water tank, and mainly includes: the bottom angle steel ring is used to increase the strength of the bottom ring wall plate; the thin pad iron under the bottom angle steel ring is used , used to adjust the levelness of the water tank; the angle steel fixing card and the expansion bolt are used together to fix the bottom angle steel ring to ensure the stability of the tank.
  • the bentonite waterstop and waterstop tape are attached to the tank wall and the side wall of the concave grouting groove, and the non-shrinking fine stone concrete grouting material added with expansion agent and impermeable agent is used for secondary grouting in the foundation concave grouting groove.
  • the invention has the characteristics that the bottom ring wall plate is firmly fixed, the tank body is not easily displaced when grouting, and the water stop belt can effectively seal the leakage gap by absorbing water and expanding, and solves the problem of the bottom ring of the bottomless bolted water tank.
  • the sealing problem between the siding and the foundation avoids the leakage of the water tank foundation.
  • the construction method also has the advantages of easy acquisition of construction materials, simple operation steps, and obvious anti-leakage effect.
  • Figure 1 is a top view of the foundation of a bolted water tank
  • Figure 2 is a sectional view of the foundation of a bolted water tank
  • Figure 3 is a schematic diagram of the connection between the bottom ring wall plate and the bottom ring wall plate
  • Figure 4 is a schematic diagram of the connection between the bottom ring wall plate and the bottom angle steel
  • Figure 5 is a schematic diagram of the installation of the leveling and fixing bottom angle steel ring
  • Figure 6 is a schematic diagram of the installation of the water-stop tape
  • Fig. 7 is the schematic diagram after the concave grouting groove is filled with non-shrinkage fine stone concrete
  • FIG. 8 is a schematic diagram of the base coating of the water-repellent coating in the tank.
  • the invention provides an installation method for an anti-seepage structure of a bottomless bolt-connected water tank.
  • the technological process is as follows: pouring a concrete foundation with a concave grouting groove - cleaning the concave grouting groove - bottom ring wall panel assembly - bottom Assembly of ring wall plate and bottom angle steel ring - installation of thin shims - leveling and alignment of bottom ring wall plate - installation of angle steel fixing clips - tightening of expansion bolts - installation of tank body (including wall and top plate) ——Attaching water-stop tape——grouting of concave grooves——painting waterproof paint on the foundation as a whole——water injection test of water tank.
  • this embodiment further optimizes the construction method of the bottomless water tank, and has the advantages of firm bottom ring wall plate, the tank body is not easily deformed during grouting, and the anti-leakage effect is obviously enhanced. Solve the leakage problem of the contact surface between the bottom ring wall plate of the bottomless bolted water tank and the fine stone concrete in the concave grouting tank.
  • the anti-leakage construction method for a bottomless bolted water tank provided in a typical embodiment of the present invention includes the following steps.
  • Step one pour the concrete foundation of the bolted water tank with the concave grouting groove, as shown in Figure 1.
  • the concrete foundation with a concave grouting groove includes a concrete foundation 1, a concave grouting groove 2 and a polygonal concrete ring wall 3; the concave grouting groove 2 is annularly formed on the edge of the concrete foundation 1, and the polygonal concrete ring wall 3 is constructed on the Outer side of concave grouting groove 2.
  • the surface layer of concrete pouring shall be smoothed and calendered.
  • the concrete concave grouting groove 2 is used to place the overlapping area between the bottom ring wall plate 4 of the water tank and the bottom angle steel ring 5 .
  • the size of the concrete concave grouting groove 2 is determined according to the size of the water tank, the buried depth of the bottom ring wall plate 4, the size of the bottom angle steel ring 5 and the size of the expansion bolt 6.
  • Polygonal concrete ring wall 3 According to the size and design requirements of the water tank, the polygonal concrete ring wall 3 generally adopts 6-18 polygons.
  • the water tank of 100m 3 ⁇ 500m 3 adopts regular hexagon
  • the water tank of 500m 3 ⁇ 1000m 3 adopts octagon
  • the water tank of 1000m 3 ⁇ 3000m 3 adopts regular twelve deformation
  • the concrete ring wall can also adopt circular shape ring wall.
  • Step 2 Assemble the bottom ring wall plates 4, apply waterproof sealant 9 to the lap joints between the bottom ring wall plates 4, and install the connecting bolts 7.
  • waterproof sealant 9 is one of the key technologies in the installation of the entire water tank.
  • the waterproof sealant is mainly used for sticking plastic, metal materials and metal materials with coating, which has the advantages of firm sticking, long weather resistance, oxidation resistance and long service life. glue.
  • Step 3 while assembling the bottom ring wall plate 4, install the bottom angle steel ring 5 along the lower edge of the bottom ring wall plate 4, apply waterproof sealant 9 to the overlap between the bottom ring wall plate 4 and the bottom angle steel ring 5 and install and connect Bolt 7.
  • the bottom angle steel ring 5 is installed on the outside of the bottom ring wall plate 4. One side of the bottom angle steel ring 5 is close to the bottom ring wall plate 4, and the other side is parallel to the concrete surface in the concave grouting groove 2.
  • the bottom ring wall plate 4 and the bottom angle steel ring The installation is shown in Figure 4.
  • One end of the connecting bolt 7 is equipped with a nut 15 and a nut protection cap 8.
  • the bottom angle steel ring 5 is composed of a fixed number of angle steels, each bottom angle steel is connected with two bottom ring wall plates, and the bottom angle steels are connected by angle steel short joints of the same specification, and the length of the short joints is generally 300mm to 600mm.
  • the bottom angle steel specifications are selected according to the size of the tank body, and the specifications are generally ⁇ 50*50*6mm ⁇ 100*100*10mm.
  • the material of bottom angle steel can be cast iron, carbon steel and stainless steel.
  • the angle steel has 3 relatively close holes at the position of the longitudinal seam of the plate, and one angle steel connects the two bottom ring wall plates 4, as shown in Figure 5.
  • the nut protection cap prevents the nut from rusting and increases the aesthetics of the outer surface of the water tank.
  • the nut protection cap prevents the nut from rusting and increases the aesthetics of the outer surface of the water tank.
  • the waterproof sealant is selected according to the material of the tank body, and the waterproof sealant 9 is applied to the lap joints of the bottom ring wall plate 4 and the bottom angle steel ring 5, and the bottom ring wall plate 4 and the bottom ring wall plate 4.
  • Step 4 After the bottom ring wall plate 4 and the bottom angle steel ring 5 are connected, a thin horn 12 is installed between the bottom angle steel ring 5 and the concrete upper surface of the concave grouting tank 2 for leveling the water tank wall plate.
  • the thickness of the thin horns is 0.1mm to 1mm, and the number of each group is generally 2 to 12, and is made of corrosion-resistant stainless steel; three groups of thin horns are installed under each bottom ring wall plate.
  • Step 5 After the horizontality of the bottom ring wall plate 4 is accepted, press the angle steel fixing card 13 on the horizontal edge of the bottom angle steel ring 5, and fix the angle steel fixing card 13 on the bottom of the concave grouting groove 2 with expansion bolts 6, so that the angle steel fixing card 13 Press the bottom angle steel ring 5 tightly.
  • the angle steel fixing card 13 is generally made of unequal angle steel, and the long side is provided with a hole for installing the expansion bolt 6 .
  • the expansion bolts are generally M20-M26, and the length is determined according to the depth of the foundation groove.
  • the angle steel fixing card 13 is used to compress the bottom angle steel ring 5.
  • the inner and lower part of the concave grouting groove 2 is set as an area without binding steel bars, which is convenient for the installation of the expansion bolts 6.
  • Each bottom ring wall plate 4 has three sets of fixing members composed of angle steel fixing clips 13 and expansion bolts 6, as shown in FIG. 6 .
  • Installation of the tank body According to the construction method of the storage tank, install the remaining several circles of tank wall panels, the top circle tank wall and the edge-wrapped angle steel, the edge-wrapped angle steel and the tank top, the tank top installation, the pipe installation and the ladder railing platform installation.
  • Step 6 Paste a water stop tape over the connecting bolts 7 of the bottom ring wall plate 4 and the bottom angle steel ring 5 .
  • the inner wall of the inner bottom ring of the concave grouting tank 2 is pasted with two circles of waterstops, the upper circle is a bentonite-containing rubber waterstop, that is, a bentonite waterstop 10, and the lower circle is a waterstop tape 11, such as shown in Figure 5.
  • Step 7 Paste a circle of water-stopping tape 11 on the middle of the inner side wall of the concrete concave grouting groove 2 .
  • the waterproof principle of the bentonite waterstop 10 is that the bentonite particles in the adhesive tape swell in contact with water, and the result is that the bentonite waterstop is squeezed and compacted between the tank wall and the concrete to play a waterproof role.
  • the water-stop tape is a new type of waterproof material with self-adhesive properties, which is synthesized from polymers, inorganic water-absorbing swelling materials, rubber and additives.
  • the water-stop tape is sealed with the concrete and the tank wall after water absorption and expansion, which blocks the seepage channel and plays a waterproof role.
  • the joint forms between the water-stop tapes, including lap joint, butt joint and composite joint.
  • the rubber waterstop is installed on the tank wall and the side wall of the concrete foundation, generally by bonding, fixture fixing and formwork fixing.
  • Step 8 After the installation of the water-stop tape 11 is completed, the inner side 2-2 of the tank wall and the outer side 2-1 of the tank wall of the concave grouting tank are grouted with concrete for the second time.
  • the inner side 2-2 of the tank wall and the outer side 2-1 of the tank wall of the concave grouting tank 2 are made of non-shrinkable thin film containing an impermeable agent and an expansion agent.
  • the stone concrete is grouted and cured for the second time, as shown in Figure 7.
  • the upper surface of the inner side of the concave grouting tank and the surface of the base leveling layer are painted with waterproof paint to form a waterproof coating 14 , as shown in FIG. 8 .
  • a water injection test should be carried out to check the tightness of the tank bottom, the strength and tightness of the tank wall, and the observation record of foundation settlement.
  • the test time is 48 hours.

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Abstract

The present invention relates to an anti-leakage construction method for a bottomless bolt connection type water tank, comprising: first, pouring, in a bolt connection type water tank, a concrete foundation with a recessed grouting groove; assembling bottom ring wall plates, applying a waterproof sealant at a lap joint between the bottom ring wall plates, and mounting a connecting bolt; mounting a bottom angle iron ring along the lower edge of each bottom ring wall plate while the bottom ring wall plates are assembled, applying the waterproof sealant at a lap joint of the bottom ring wall plate and the bottom angle iron ring, and mounting the connecting bolt; mounting thin pad irons between the bottom angle iron ring and the concrete upper surface of the recessed grouting groove, and pressing the bottom angle iron ring by angle iron fixing clamps; adhering a water stop band above the connecting bolt of the bottom ring wall plate and the bottom angle iron ring; adhering a circle of water stop adhesive tape to the middle of the inner side wall of the concrete recessed grouting groove; and performing secondary grouting with concrete on the inner side of the tank wall and the outer side of the tank wall of the recessed grouting groove. According to the present invention, the sealing problem of the bottom ring wall plate and the foundation of the bottomless bolt connection type water tank is solved, and leakage of the foundation of the water tank is avoided.

Description

无底螺栓连接式水罐防渗漏施工方法Anti-leakage construction method of bottomless bolted water tank 技术领域technical field
本发明属于储罐设备安装领域，特别是一种无底螺栓连接式水罐防渗漏施工方法。The invention belongs to the field of storage tank equipment installation, in particular to an anti-leakage construction method for a bottomless bolt-connected water tank.
背景技术Background technique
传统的水罐材料采用钢板，罐底与罐壁之间采用焊接。钢制储罐施工周期长、安装成本高、防腐蚀效果然差，使用周期短。随着科学技术的发展，大量的新型特制有机塑料、无机复合材料和表面有非金属镀层的金属材料应用在水罐安装上。这些材料基本上不能采用焊接，一般采用螺栓连接或者胶粘接。螺栓连接式水罐通常是无底的，同时这些新型材料表面光滑，直接采用无收缩细石混凝土灌浆，容易产生渗水问题。针对以上问题，有必要提供一种适应于无底螺栓连接式水罐防渗漏施工方法。The traditional water tank material is steel plate, and welding is used between the tank bottom and the tank wall. Steel storage tanks have long construction periods, high installation costs, poor anti-corrosion effects, and short service periods. With the development of science and technology, a large number of new special organic plastics, inorganic composite materials and metal materials with non-metallic coating on the surface are used in the installation of water tanks. These materials basically cannot be welded, and are generally bolted or glued. Bolted water tanks are usually bottomless, and these new materials have smooth surfaces and are directly grouted with non-shrinking fine stone concrete, which is prone to water seepage problems. In view of the above problems, it is necessary to provide an anti-leakage construction method suitable for bottomless bolted water tanks.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种无底螺栓连接式水罐防渗漏施工方法，从而实现无底螺栓连接式水罐底圈壁板与基础的密封问题，避免水罐基础发生渗漏。The purpose of the present invention is to provide an anti-leakage construction method for a bottomless bolted water tank, so as to realize the sealing problem between the bottom ring wall plate and the foundation of the bottomless bolted water tank and avoid leakage of the water tank foundation.
为实现上述目的，本发明采用的技术方案是：一种无底螺栓连接式水罐防渗漏施工方法，包括：In order to achieve the above purpose, the technical solution adopted in the present invention is: a bottomless bolt-connected water tank anti-leakage construction method, comprising:
步骤一,浇筑螺栓连接式水罐带有凹型灌浆槽的混凝土基础； Step 1, pouring the concrete foundation of the bolted water tank with the concave grouting groove;
步骤二，拼装底圈壁板，底圈壁板之间的搭接处涂抹防水密封胶并安装连接螺栓；Step 2: Assemble the bottom ring wall panels, apply waterproof sealant to the lap joints between the bottom ring wall panels and install connecting bolts;
步骤三，在拼装底圈壁板的同时，沿着底圈壁板的下边缘安装底部角钢圈，底圈壁板与底部角钢圈搭接处涂抹防水密封胶并安装连接螺栓；Step 3: While assembling the bottom ring wall plate, install the bottom angle steel ring along the lower edge of the bottom ring wall plate, apply waterproof sealant to the overlap between the bottom ring wall plate and the bottom angle steel ring, and install connecting bolts;
步骤四，底圈壁板与底部角钢圈连接完成后，在底部角钢圈与凹型灌浆槽混凝土上表面之间安装薄垫铁，用于水罐壁板的调平； Step 4, after the connection between the bottom ring wall plate and the bottom angle steel ring is completed, a thin horn is installed between the bottom angle steel ring and the upper surface of the concave grouting groove concrete for leveling the water tank wall plate;
步骤五，底圈壁板水平度验收合格后，将角钢固定卡压在底部角钢圈水平边上，用膨胀螺栓将角钢固定卡固定在凹型灌浆槽底部，使得角钢固定卡压紧底部角钢圈；Step 5: After the levelness of the bottom ring wall plate is accepted, press the angle steel fixing card on the horizontal edge of the bottom angle steel ring, and fix the angle steel fixing card on the bottom of the concave grouting groove with expansion bolts, so that the angle steel fixing card compresses the bottom angle steel ring;
步骤六，在底圈壁板与底部角钢圈的连接螺栓上方粘贴止水带； Step 6, paste the water stop tape above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring;
步骤七，在混凝土凹型灌浆槽内侧壁中部位置粘贴一圈止水胶带；Step 7: Paste a circle of water-stop tape on the middle of the inner side wall of the concrete concave grouting groove;
步骤八，在止水胶带安装完成后，凹型灌浆槽的罐壁内一侧和罐壁外一侧用混凝土进行二次灌浆。Step 8: After the installation of the water-stop tape is completed, the inner side of the tank wall and the outer side of the tank wall of the concave grouting tank are grouted with concrete for secondary grouting.
进一步地，步骤一中，所述带凹型灌浆槽的混凝土基础，包括混凝土基础、凹型灌浆槽和多边形混凝土环墙；凹型灌浆槽呈环形形成于混凝土基础边缘，多边形混凝土环墙构筑于凹型灌浆槽外侧。Further, in step 1, the concrete foundation with a concave grouting groove includes a concrete foundation, a concave grouting groove and a polygonal concrete ring wall; the concave grouting groove is annularly formed on the edge of the concrete foundation, and the polygonal concrete ring wall is constructed in the concave grouting groove. outside.
进一步地，实施步骤二以前，用带压的洁净水冲洗混凝土基础和凹型灌浆槽，然后将凹型灌浆槽内清理干净，最后用压缩空气把凹型灌浆槽中的冲洗水吹干。Further, before implementing step 2, rinse the concrete foundation and the concave grouting tank with clean water under pressure, then clean the inside of the concave grouting tank, and finally dry the flushing water in the concave grouting tank with compressed air.
进一步地，实施步骤二以前，用水准仪测出凹型灌浆槽内底部角钢的安装标高，在凹型灌浆槽内沿着顺时针方向，每旋转30度在槽内侧壁做标记，用于水罐底圈壁板安装标高的控制。Further, before step 2 is implemented, use a level to measure the installation elevation of the bottom angle steel in the concave grouting groove, and in the clockwise direction in the concave grouting groove, mark the inner side wall of the groove every 30 degrees of rotation, which is used for the bottom ring of the water tank. Control of siding installation elevation.
进一步地，步骤四中，所述薄垫铁厚度为0.1mm～1mm，每组块数一般为2～12块，采用耐腐蚀不锈钢材质；每张底圈壁板下面安装三组薄垫铁。Further, in step 4, the thickness of the thin horns is 0.1mm to 1mm, the number of each group is generally 2 to 12, and is made of corrosion-resistant stainless steel; three groups of thin horns are installed under each bottom ring wall plate.
进一步地，步骤六中，在底圈壁板与底部角钢圈的连接螺栓上方粘贴两圈止水带，上面一圈为膨润土止水带，下面一圈为止水胶带。Further, in step 6, two circles of water stop tape are pasted above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring, the upper circle is a bentonite water stop tape, and the lower circle is a water stop tape.
进一步地，步骤八中，所述的混凝土为含有防渗剂和膨胀剂的细石混凝土。Further, in the eighth step, the concrete is a fine stone concrete containing an impermeable agent and an expansion agent.
进一步地，水罐安装完后，在凹型灌浆槽的罐壁内一侧上表面和水罐内基础找平层表面涂刷防水涂料。Further, after the water tank is installed, the upper surface of the inner side of the tank wall of the concave grouting tank and the surface of the foundation leveling layer in the water tank are painted with waterproof paint.
本发明中采用的底圈壁板调平和固定组合构造，能够增强水罐的稳定性，主要包括：通过底部角钢圈，用于增加底圈壁板的强度；底部角钢圈下面垫的薄垫铁，用于调整水罐的水平度；角钢固定卡和膨胀螺栓的配套使用，来固定底部角钢圈，确保罐体的稳定。此外，将膨润土止水带和止水胶带粘贴罐壁板与凹型灌浆槽侧壁，基础凹型灌浆槽内用添加膨胀剂和抗渗剂的无收缩细石混凝土灌浆料进行二次灌浆，当水罐壁板与细石混凝土灌浆层有渗水间隙时，水渗到粘贴止水带的位置，止水带吸水后开始膨胀，将渗水间隙挤压密实起到防水作用，一定程度上避免水罐基础发生渗漏。罐内基础层涂刷防水涂料。The leveling and fixing combination structure of the bottom ring wall plate adopted in the present invention can enhance the stability of the water tank, and mainly includes: the bottom angle steel ring is used to increase the strength of the bottom ring wall plate; the thin pad iron under the bottom angle steel ring is used , used to adjust the levelness of the water tank; the angle steel fixing card and the expansion bolt are used together to fix the bottom angle steel ring to ensure the stability of the tank. In addition, the bentonite waterstop and waterstop tape are attached to the tank wall and the side wall of the concave grouting groove, and the non-shrinking fine stone concrete grouting material added with expansion agent and impermeable agent is used for secondary grouting in the foundation concave grouting groove. When there is a water seepage gap between the tank wall plate and the fine stone concrete grouting layer, the water seeps to the position where the water stop tape is pasted, and the water stop tape begins to expand after absorbing water. A leak has occurred. The base layer in the tank is painted with waterproof paint.
综上所述，本发明具有底圈壁板固定牢、灌浆时罐体不易发生移位，止水带吸水膨胀能有效封堵渗漏间隙等特点，解决了无底螺栓连接式水罐底圈壁板与基础的密封问题，避免水罐基础发生渗漏。本施工方法还具有施工材料容易获得、 操作步骤简单、抗渗漏效果明显。To sum up, the invention has the characteristics that the bottom ring wall plate is firmly fixed, the tank body is not easily displaced when grouting, and the water stop belt can effectively seal the leakage gap by absorbing water and expanding, and solves the problem of the bottom ring of the bottomless bolted water tank. The sealing problem between the siding and the foundation avoids the leakage of the water tank foundation. The construction method also has the advantages of easy acquisition of construction materials, simple operation steps, and obvious anti-leakage effect.
附图说明Description of drawings
此处的附图用来提供对本发明的进一步说明，构成本申请的一部分，本发明的示意性实施例及其说明用来解释本发明，并不构成对本发明的不当限定。The accompanying drawings here are used to provide further descriptions of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.
图1为螺栓连接式水罐基础俯视图；Figure 1 is a top view of the foundation of a bolted water tank;
图2为螺栓连接式水罐基础截面图；Figure 2 is a sectional view of the foundation of a bolted water tank;
图3为底圈壁板与底圈壁板连接示意图；Figure 3 is a schematic diagram of the connection between the bottom ring wall plate and the bottom ring wall plate;
图4为底圈壁板与底部角钢连接示意图；Figure 4 is a schematic diagram of the connection between the bottom ring wall plate and the bottom angle steel;
图5为调平和固定底部角钢圈安装示意图；Figure 5 is a schematic diagram of the installation of the leveling and fixing bottom angle steel ring;
图6为止水胶带的安装示意图；Figure 6 is a schematic diagram of the installation of the water-stop tape;
图7为凹型灌浆槽灌完无收缩细石混凝土后示意图；Fig. 7 is the schematic diagram after the concave grouting groove is filled with non-shrinkage fine stone concrete;
图8为罐内基础涂凝防水涂层示意图。FIG. 8 is a schematic diagram of the base coating of the water-repellent coating in the tank.
图中，1-混凝土基础、2-凹型灌浆槽、3-多边形混凝土环墙、4-底圈壁板、5-底部角钢圈、6-膨胀螺栓、7-连接螺栓、8-螺母保护帽、9-防水密封胶、10-膨润土止水带、11-止水胶带、12-薄垫铁、13-角钢固定卡、14-防水涂层、15—螺母、2-1—罐壁外一侧、2-2—罐壁内一侧。In the figure, 1- concrete foundation, 2- concave grouting groove, 3- polygonal concrete ring wall, 4- bottom ring wall plate, 5- bottom angle steel ring, 6- expansion bolt, 7- connecting bolt, 8- nut protection cap, 9-Waterproof sealant, 10-Bentonite waterstop, 11-Waterstop tape, 12-Thin horn, 13-Angle steel fixing clip, 14-Waterproof coating, 15-Nut, 2-1-Outer side of tank wall , 2-2—the inner side of the tank wall.
具体实施方式Detailed ways
为了使本领域技术人员更好的理解本发明，以下结合参考附图并结合实施例对本发明作进一步清楚、完整的说明。需要说明的是，在不冲突的情况下，本申请中的实施方式及实施例中的特征可以相互组合。In order to make those skilled in the art better understand the present invention, the present invention will be further clearly and completely described below with reference to the accompanying drawings and the embodiments. It should be noted that, in the case of no conflict, the features in the implementation manners and the examples in the present application may be combined with each other.
本发明提供的是无底螺栓连接式水罐防渗漏构造的安装方法，其工艺流程为：浇筑带凹型灌浆槽的混凝土基础——凹型灌浆槽的清理——底圈壁板组装——底圈壁板与底部角钢圈组装——安装薄垫铁——底圈壁板找平找正——角钢固定卡的安装——膨胀螺栓的紧固——罐体的安装(包括壁板和顶板)——粘贴止水胶带——凹型槽的灌浆——基础整体涂刷防水涂料——水罐注水试验。The invention provides an installation method for an anti-seepage structure of a bottomless bolt-connected water tank. The technological process is as follows: pouring a concrete foundation with a concave grouting groove - cleaning the concave grouting groove - bottom ring wall panel assembly - bottom Assembly of ring wall plate and bottom angle steel ring - installation of thin shims - leveling and alignment of bottom ring wall plate - installation of angle steel fixing clips - tightening of expansion bolts - installation of tank body (including wall and top plate) ——Attaching water-stop tape——grouting of concave grooves——painting waterproof paint on the foundation as a whole——water injection test of water tank.
本实施方式针对无底螺栓连接式水罐，通过对无底水罐施工方法进一步优化，具有底圈壁板牢固、灌浆时罐体不易变形，防渗漏效果明显增强的优点。解决无底螺栓连接式水罐底圈壁板与凹型灌浆槽内细石混凝土接触面渗漏问题。For the bottomless bolted water tank, this embodiment further optimizes the construction method of the bottomless water tank, and has the advantages of firm bottom ring wall plate, the tank body is not easily deformed during grouting, and the anti-leakage effect is obviously enhanced. Solve the leakage problem of the contact surface between the bottom ring wall plate of the bottomless bolted water tank and the fine stone concrete in the concave grouting tank.
本发明一种典型的施方式中提供的无底螺栓连接式水罐防渗漏施工方法，包 括如下步骤。The anti-leakage construction method for a bottomless bolted water tank provided in a typical embodiment of the present invention includes the following steps.
步骤一,浇筑螺栓连接式水罐带有凹型灌浆槽的混凝土基础，如图1所示。Step one, pour the concrete foundation of the bolted water tank with the concave grouting groove, as shown in Figure 1.
相对具体地，所述带凹型灌浆槽的混凝土基础，包括混凝土基础1、凹型灌浆槽2和多边形混凝土环墙3；凹型灌浆槽2呈环形形成于混凝土基础1边缘，多边形混凝土环墙3构筑于凹型灌浆槽2外侧。Relatively specifically, the concrete foundation with a concave grouting groove includes a concrete foundation 1, a concave grouting groove 2 and a polygonal concrete ring wall 3; the concave grouting groove 2 is annularly formed on the edge of the concrete foundation 1, and the polygonal concrete ring wall 3 is constructed on the Outer side of concave grouting groove 2.
混凝土浇筑的面层须抹平压光。混凝土凹型灌浆槽2用于放置水罐底圈壁板4与底部角钢圈5搭接区域。混凝土凹型灌浆槽2的尺寸是根据水罐大小、底圈壁板4的埋深、底度角钢圈5的规格及膨胀螺栓6规格大小来确定。多边形混凝土环墙3根据水罐的尺寸及设计要求，多边形混凝土环墙3一般采用6～18边形。一般地，100m 3～500m 3的水罐采用正六边形，500m 3～1000m 3的水罐采用八边形，1000m 3～3000m 3的水罐采用正十二变形，混凝土环墙也可以采用圆形环墙。 The surface layer of concrete pouring shall be smoothed and calendered. The concrete concave grouting groove 2 is used to place the overlapping area between the bottom ring wall plate 4 of the water tank and the bottom angle steel ring 5 . The size of the concrete concave grouting groove 2 is determined according to the size of the water tank, the buried depth of the bottom ring wall plate 4, the size of the bottom angle steel ring 5 and the size of the expansion bolt 6. Polygonal concrete ring wall 3 According to the size and design requirements of the water tank, the polygonal concrete ring wall 3 generally adopts 6-18 polygons. Generally, the water tank of 100m 3 ~ 500m 3 adopts regular hexagon, the water tank of 500m 3 ~ 1000m 3 adopts octagon, the water tank of 1000m 3 ~ 3000m 3 adopts regular twelve deformation, and the concrete ring wall can also adopt circular shape ring wall.
步骤二，拼装底圈壁板4，底圈壁板4之间的搭接处涂抹防水密封胶9并安装连接螺栓7。Step 2: Assemble the bottom ring wall plates 4, apply waterproof sealant 9 to the lap joints between the bottom ring wall plates 4, and install the connecting bolts 7.
拼装底圈壁板4前，先用带压的洁净水冲洗螺栓连接式水罐混凝土基础1及凹型灌浆槽2，然后将凹型灌浆槽2内的建筑垃圾清理干净，最后用压缩空气把凹型灌浆槽2中的冲洗水吹干，如图2所示。将凹型灌浆槽内木屑、混凝土颗粒清扫干净，并用洁净水清理干净，用压缩空气吹扫干净，目的是保证水罐安装标高测量的准确和底圈壁板安装完后槽内杂质清理不干净影响灌浆质量。Before assembling the bottom ring wall panel 4, rinse the concrete foundation 1 of the bolted water tank and the concave grouting groove 2 with clean water under pressure, then clean the construction waste in the concave grouting groove 2, and finally use the compressed air to grouting the concave type. The rinse water in tank 2 is dried, as shown in Figure 2. Clean the wood chips and concrete particles in the concave grouting tank, clean it with clean water, and blow it with compressed air. The purpose is to ensure the accuracy of the installation elevation measurement of the water tank and the impact of the impurities in the tank after the bottom ring wall is installed. Grout quality.
然后，用水准仪测出凹型灌浆槽2内底部角钢圈5的安装标高，在凹型灌浆槽2内沿着顺时针方向，每旋转30度在凹型灌浆槽2内侧壁做标记，用于水罐底圈壁板4安装标高的控制。凹型灌浆槽内侧壁标注底部角钢的安装标高有助于壁板上边缘水平的快速调平。在槽内沿着顺时针方向，旋转角度需要根据水罐尺寸的大小来定。水罐直径越大旋转角度变小，标记标高的位置数量多。Then, use a level to measure the installation elevation of the bottom angle steel ring 5 in the concave grouting groove 2, and in the clockwise direction in the concave grouting groove 2, make a mark on the inner side wall of the concave grouting groove 2 every 30 degrees, for the bottom of the water tank The control of the installation elevation of the ring wall plate 4. The installation elevation of the bottom angle steel marked on the inner side wall of the concave grouting groove is helpful for the rapid leveling of the edge level of the siding. In the clockwise direction in the tank, the rotation angle needs to be determined according to the size of the water tank. The larger the diameter of the water tank is, the smaller the rotation angle is, and the number of positions to mark the elevation increases.
底圈壁板4安装之前，先确定管口方位。然后沿着顺时针方向，开始拼装底圈壁板4。底圈壁板4与底圈壁板4搭接处涂抹防水密封胶9，安装连接螺栓7并紧固，将螺母15一侧盖上螺母保护帽8，如图3所示。涂抹防水密封胶是整个水罐安装的关键性技术之一。防水密封胶选用主要用于粘贴塑料、金属材料以及含有镀层的金属材料，具有粘贴牢固、耐侯性长、防氧化性以及使用年限长的优点，优选采用瑞士西卡防水(sikaflex)聚氨酯粘结密封胶。Before installing the bottom ring wall plate 4, first determine the orientation of the nozzle. Then start to assemble the bottom ring wall panel 4 in a clockwise direction. Apply waterproof sealant 9 to the overlap between the bottom ring wall plate 4 and the bottom ring wall plate 4, install and tighten the connecting bolts 7, and cover the nut 15 side with the nut protection cap 8, as shown in Figure 3. Applying waterproof sealant is one of the key technologies in the installation of the entire water tank. The waterproof sealant is mainly used for sticking plastic, metal materials and metal materials with coating, which has the advantages of firm sticking, long weather resistance, oxidation resistance and long service life. glue.
步骤三，在拼装底圈壁板4的同时，沿着底圈壁板4的下边缘安装底部角钢圈5，底圈壁板4与底部角钢圈5搭接处涂抹防水密封胶9并安装连接螺栓7。 Step 3, while assembling the bottom ring wall plate 4, install the bottom angle steel ring 5 along the lower edge of the bottom ring wall plate 4, apply waterproof sealant 9 to the overlap between the bottom ring wall plate 4 and the bottom angle steel ring 5 and install and connect Bolt 7.
确保底圈钢板完好无损，且螺栓孔周围表面清洁干净，然后放置在组装平台上涂抹防水密封胶，将底圈壁板4与有相对应的螺栓孔的底部角钢圈5采用连接螺栓7连接。底部角钢圈5安装在底圈壁板4的外侧，底部角钢圈5一侧紧贴底圈壁板4，另一侧与凹型灌浆槽2内混凝土面平行，底圈壁板4与底部角钢圈的安装如图4所示。连接螺栓7一端装有螺母15和螺母保护帽8.Make sure that the bottom ring steel plate is intact and the surface around the bolt holes is clean, then place it on the assembly platform to apply waterproof sealant, and connect the bottom ring wall plate 4 to the bottom angle steel ring 5 with corresponding bolt holes using connecting bolts 7. The bottom angle steel ring 5 is installed on the outside of the bottom ring wall plate 4. One side of the bottom angle steel ring 5 is close to the bottom ring wall plate 4, and the other side is parallel to the concrete surface in the concave grouting groove 2. The bottom ring wall plate 4 and the bottom angle steel ring The installation is shown in Figure 4. One end of the connecting bolt 7 is equipped with a nut 15 and a nut protection cap 8.
底部角钢圈5由固定数量的角钢组成，每根底部角钢连接两张底圈壁板，底部角钢之间用同规格的角钢短节连接，短节长度一般为300mm～600mm。底部角钢规格依据罐体的尺寸进行选用，规格一般选用∠50*50*6mm～∠100*100*10mm。底部角钢的材质可选用铸铁、碳素钢及不锈钢。角钢在板纵缝的位置处有3个距离较近的孔位，一根角钢连接两张底圈壁板4，如图5所示。底部角钢∠60*60*6之间都有长度L＝480mm的连接角钢∠60*60*6来连接，用于加固底部角钢圈。The bottom angle steel ring 5 is composed of a fixed number of angle steels, each bottom angle steel is connected with two bottom ring wall plates, and the bottom angle steels are connected by angle steel short joints of the same specification, and the length of the short joints is generally 300mm to 600mm. The bottom angle steel specifications are selected according to the size of the tank body, and the specifications are generally ∠50*50*6mm～∠100*100*10mm. The material of bottom angle steel can be cast iron, carbon steel and stainless steel. The angle steel has 3 relatively close holes at the position of the longitudinal seam of the plate, and one angle steel connects the two bottom ring wall plates 4, as shown in Figure 5. The bottom angle steel ∠60*60*6 is connected with the connecting angle steel ∠60*60*6 of length L=480mm, which is used to strengthen the bottom angle steel ring.
螺母保护帽具有防止螺母生锈，同时增加水罐外表面的美观性。螺母保护帽具有防止螺母生锈，同时增加水罐外表面的美观性。The nut protection cap prevents the nut from rusting and increases the aesthetics of the outer surface of the water tank. The nut protection cap prevents the nut from rusting and increases the aesthetics of the outer surface of the water tank.
防水密封胶依据罐体材质选用，将密防水封胶9涂抹在底圈壁板4与底部角钢圈5、底圈壁板4与底圈壁板4的搭接处。The waterproof sealant is selected according to the material of the tank body, and the waterproof sealant 9 is applied to the lap joints of the bottom ring wall plate 4 and the bottom angle steel ring 5, and the bottom ring wall plate 4 and the bottom ring wall plate 4.
步骤四，底圈壁板4与底部角钢圈5连接完成后，在底部角钢圈5与凹型灌浆槽2混凝土上表面之间安装薄垫铁12，用于水罐壁板的调平。Step 4: After the bottom ring wall plate 4 and the bottom angle steel ring 5 are connected, a thin horn 12 is installed between the bottom angle steel ring 5 and the concrete upper surface of the concave grouting tank 2 for leveling the water tank wall plate.
根据图纸设计标高调节底部角钢，然后通过圆心控制第一带板的圆弧度，反复多次核对第一圈的板圆弧度和水平度及标高，达到图纸设计要求。Adjust the bottom angle steel according to the design elevation of the drawing, and then control the arc of the first belt plate through the center of the circle, and check the arc, levelness and elevation of the plate in the first circle repeatedly to meet the design requirements of the drawing.
所述薄垫铁厚度为0.1mm～1mm，每组块数一般为2～12块，采用耐腐蚀不锈钢材质；每张底圈壁板下面安装三组薄垫铁。The thickness of the thin horns is 0.1mm to 1mm, and the number of each group is generally 2 to 12, and is made of corrosion-resistant stainless steel; three groups of thin horns are installed under each bottom ring wall plate.
步骤五，底圈壁板4水平度验收合格后，将角钢固定卡13压在底部角钢圈5水平边上，用膨胀螺栓6将角钢固定卡13固定在凹型灌浆槽2底部，使得角钢固定卡13压紧底部角钢圈5。Step 5: After the horizontality of the bottom ring wall plate 4 is accepted, press the angle steel fixing card 13 on the horizontal edge of the bottom angle steel ring 5, and fix the angle steel fixing card 13 on the bottom of the concave grouting groove 2 with expansion bolts 6, so that the angle steel fixing card 13 Press the bottom angle steel ring 5 tightly.
角钢固定卡13一般采用不等边角钢，长边上开有安装膨胀螺栓6的孔。膨胀螺栓一般采用M20～M26,长度根据基础槽深度而定，角钢固定卡13用于压紧底部角钢圈5。凹型灌浆槽2内下部设置为无绑扎钢筋区域，便于膨胀螺栓6的 安装。每张底圈壁板4有三套由角钢固定卡13与膨胀螺栓6组成的固定构件，如图6所示。The angle steel fixing card 13 is generally made of unequal angle steel, and the long side is provided with a hole for installing the expansion bolt 6 . The expansion bolts are generally M20-M26, and the length is determined according to the depth of the foundation groove. The angle steel fixing card 13 is used to compress the bottom angle steel ring 5. The inner and lower part of the concave grouting groove 2 is set as an area without binding steel bars, which is convenient for the installation of the expansion bolts 6. Each bottom ring wall plate 4 has three sets of fixing members composed of angle steel fixing clips 13 and expansion bolts 6, as shown in FIG. 6 .
罐体的安装：按照储罐正装施工方法，将其余几圈罐壁板、顶圈罐壁与包边角钢、包边角钢与罐顶、罐顶安装、接管安装以及梯子栏杆平台安装。Installation of the tank body: According to the construction method of the storage tank, install the remaining several circles of tank wall panels, the top circle tank wall and the edge-wrapped angle steel, the edge-wrapped angle steel and the tank top, the tank top installation, the pipe installation and the ladder railing platform installation.
步骤六，在底圈壁板4与底部角钢圈5的连接螺栓7上方粘贴止水带。Step 6: Paste a water stop tape over the connecting bolts 7 of the bottom ring wall plate 4 and the bottom angle steel ring 5 .
在止水带粘贴之前，先用干棉布将底圈壁板上的密封胶泥、水气、灰尘清理干净。优选的实施方式中，凹型灌浆槽2内底圈壁板内壁粘贴两圈止水带，上面一圈为含膨润土橡胶止水带，即膨润土止水带10，下面一圈为止水胶带11，如图5所示。Before pasting the waterstop, use a dry cotton cloth to clean the sealant, moisture and dust on the bottom ring wall panel. In a preferred embodiment, the inner wall of the inner bottom ring of the concave grouting tank 2 is pasted with two circles of waterstops, the upper circle is a bentonite-containing rubber waterstop, that is, a bentonite waterstop 10, and the lower circle is a waterstop tape 11, such as shown in Figure 5.
步骤七，在混凝土凹型灌浆槽2内侧壁中部位置粘贴一圈止水胶带11。Step 7: Paste a circle of water-stopping tape 11 on the middle of the inner side wall of the concrete concave grouting groove 2 .
相对具体地，是将混凝土凹型灌浆槽内侧壁用干棉布清理干净，然后沿着槽内侧壁离槽底距离一半的位置粘贴一圈止水胶带11，如图5和图6所示，防止基础槽二次灌浆后与基础、板有渗水通道，从而避免出现渗漏现象。More specifically, clean the inner sidewall of the concrete concave grouting tank with a dry cotton cloth, and then paste a circle of water-stopping tape 11 along the inner sidewall of the tank half the distance from the bottom of the tank, as shown in Figures 5 and 6, to prevent the foundation. After the secondary grouting of the groove, there is a water seepage channel with the foundation and plate, so as to avoid leakage.
步骤六、步骤七中，所述膨润土止水带10的防水原理是胶带中膨润土颗粒遇水膨胀，结果是让膨润土止水带在罐壁与混凝土之间挤压密实，起到防水作用。同样，止水胶带是由高分子、无机吸水膨胀材料与橡胶及助剂合成的具有自粘性能的一种新型防水材料。止水胶带是靠吸水膨胀后与混凝土以及罐壁之间剂密，堵塞渗水通道，起到防水作用。止水胶带之间接头形式，包括搭接、对接和复合接。橡胶止水带往罐壁、混凝土基础侧壁上安装，一般采用粘接、卡具固定以及模板固定。In step 6 and step 7, the waterproof principle of the bentonite waterstop 10 is that the bentonite particles in the adhesive tape swell in contact with water, and the result is that the bentonite waterstop is squeezed and compacted between the tank wall and the concrete to play a waterproof role. Similarly, the water-stop tape is a new type of waterproof material with self-adhesive properties, which is synthesized from polymers, inorganic water-absorbing swelling materials, rubber and additives. The water-stop tape is sealed with the concrete and the tank wall after water absorption and expansion, which blocks the seepage channel and plays a waterproof role. The joint forms between the water-stop tapes, including lap joint, butt joint and composite joint. The rubber waterstop is installed on the tank wall and the side wall of the concrete foundation, generally by bonding, fixture fixing and formwork fixing.
将膨润土止水带和止水胶带粘贴罐底圈壁板与凹型灌浆槽侧壁，当水罐壁板与细石混凝土灌浆层有渗水间隙时，水渗到粘贴止水带的位置，止水带吸水后开始膨胀，将渗水空隙挤压密实起到防水作用，一定程度上避免水罐基础发生渗漏。Stick the bentonite waterstop and waterstop tape to the tank bottom ring wall and the side wall of the concave grouting tank. When there is a water seepage gap between the water tank wall and the fine stone concrete grouting layer, the water seeps into the position where the waterstop is pasted, and the water is stopped. After the belt absorbs water, it begins to expand, and the water seepage gap is squeezed and compacted to play a waterproof role, which can prevent the foundation of the water tank from leaking to a certain extent.
步骤八，在止水胶带11安装完成后，凹型灌浆槽的罐壁内一侧2-2和罐壁外一侧2-1用混凝土进行二次灌浆。Step 8: After the installation of the water-stop tape 11 is completed, the inner side 2-2 of the tank wall and the outer side 2-1 of the tank wall of the concave grouting tank are grouted with concrete for the second time.
相对具体地，是在止水胶带11安装完成半小时后，凹型灌浆槽2的罐壁内一侧2-2和罐壁外一侧2-1用含有防渗剂和膨胀剂的无收缩细石混凝土进行二次灌浆、养护，如图7所示。水罐安装完后，在凹型灌浆槽的罐内一侧上表面和基础找平层表面涂刷防水涂料形成防水涂层14，如图8所示。Relatively concretely, half an hour after the installation of the water-stop tape 11 is completed, the inner side 2-2 of the tank wall and the outer side 2-1 of the tank wall of the concave grouting tank 2 are made of non-shrinkable thin film containing an impermeable agent and an expansion agent. The stone concrete is grouted and cured for the second time, as shown in Figure 7. After the water tank is installed, the upper surface of the inner side of the concave grouting tank and the surface of the base leveling layer are painted with waterproof paint to form a waterproof coating 14 , as shown in FIG. 8 .
在二次灌浆过程中，时刻注意止水胶带是否有脱落，如果发生脱落，将脱落的切除，更换成新的。同时，保证止水胶带全部被无收缩细石混凝土掩埋。在止水胶带定位和混凝土浇捣过程中，应注意定位方法和浇捣压力以免胶条被损坏。During the secondary grouting process, always pay attention to whether the water-stop tape has fallen off. If it falls off, cut off the fallen off and replace it with a new one. At the same time, ensure that all the water-stop tapes are buried by non-shrinkage fine stone concrete. During the positioning of the water-stop tape and the concrete pouring, attention should be paid to the positioning method and pouring pressure to avoid damage to the rubber strip.
待螺栓连接式水罐安装完成后，应进行注水试验，以检验罐底严密性、罐壁的强度和严密性及基础沉降观测记录，试验时间48小时。After the installation of the bolted water tank is completed, a water injection test should be carried out to check the tightness of the tank bottom, the strength and tightness of the tank wall, and the observation record of foundation settlement. The test time is 48 hours.
本发明要求保护的范围不限于以上具体实施方式，对于本领域技术人员而言，本发明可以有多种变形和更改，凡在本发明的构思与原则之内所作的任何修改、改进和等同替换都应包含在本发明的保护范围之内。The scope of protection of the present invention is not limited to the above specific embodiments. For those skilled in the art, the present invention may have various modifications and changes. Any modification, improvement and equivalent replacement made within the concept and principle of the present invention All should be included within the protection scope of the present invention.

Claims (8)

  1. 一种无底螺栓连接式水罐防渗漏施工方法，其特征在于，包括：A bottomless bolt-connected water tank anti-leakage construction method is characterized in that, comprising:
    步骤一,浇筑螺栓连接式水罐带有凹型灌浆槽的混凝土基础；Step 1, pouring the concrete foundation of the bolted water tank with the concave grouting groove;
    步骤二，拼装底圈壁板，底圈壁板之间的搭接处涂抹防水密封胶并安装连接螺栓；Step 2: Assemble the bottom ring wall panels, apply waterproof sealant to the lap joints between the bottom ring wall panels and install connecting bolts;
    步骤三，在拼装底圈壁板的同时，沿着底圈壁板的下边缘安装底部角钢圈，底圈壁板与底部角钢圈搭接处涂抹防水密封胶并安装连接螺栓；Step 3: While assembling the bottom ring wall plate, install the bottom angle steel ring along the lower edge of the bottom ring wall plate, apply waterproof sealant to the overlap between the bottom ring wall plate and the bottom angle steel ring, and install connecting bolts;
    步骤四，底圈壁板与底部角钢圈连接完成后，在底部角钢圈与凹型灌浆槽混凝土上表面之间安装薄垫铁，用于水罐壁板的调平；Step 4, after the connection between the bottom ring wall plate and the bottom angle steel ring is completed, a thin horn is installed between the bottom angle steel ring and the upper surface of the concave grouting groove concrete for leveling the water tank wall plate;
    步骤五，底圈壁板水平度验收合格后，将角钢固定卡压在底部角钢圈水平边上，用膨胀螺栓将角钢固定卡固定在凹型灌浆槽底部，使得角钢固定卡压紧底部角钢圈；Step 5: After the levelness of the bottom ring wall plate is accepted, press the angle steel fixing card on the horizontal edge of the bottom angle steel ring, and fix the angle steel fixing card on the bottom of the concave grouting groove with expansion bolts, so that the angle steel fixing card compresses the bottom angle steel ring;
    步骤六，在底圈壁板与底部角钢圈的连接螺栓上方粘贴止水带；Step 6, paste the water stop tape above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring;
    步骤七，在混凝土凹型灌浆槽内侧壁中部位置粘贴一圈止水胶带；Step 7: Paste a circle of water-stop tape on the middle of the inner side wall of the concrete concave grouting groove;
    步骤八，在止水胶带安装完成后，凹型灌浆槽的罐壁内一侧和罐壁外一侧用混凝土进行二次灌浆。Step 8: After the installation of the water-stop tape is completed, the inner side of the tank wall and the outer side of the tank wall of the concave grouting tank are grouted with concrete for secondary grouting.
  2. 根据权利要求1所述的方法，其特征在于：步骤一中，所述带凹型灌浆槽的混凝土基础，包括混凝土基础、凹型灌浆槽和多边形混凝土环墙；凹型灌浆槽呈环形形成于混凝土基础边缘，多边形混凝土环墙构筑于凹型灌浆槽外侧。The method according to claim 1, wherein: in step 1, the concrete foundation with a concave grouting groove includes a concrete foundation, a concave grouting groove and a polygonal concrete ring wall; the concave grouting groove is formed in a ring shape on the edge of the concrete foundation , the polygonal concrete ring wall is constructed on the outside of the concave grouting groove.
  3. 根据权利要求2所述的方法，其特征在于：实施步骤二以前，用带压的洁净水冲洗混凝土基础和凹型灌浆槽，然后将凹型灌浆槽内清理干净，最后用压缩空气把凹型灌浆槽中的冲洗水吹干。The method according to claim 2, characterized in that: before step 2 is performed, the concrete foundation and the concave grouting groove are washed with clean water under pressure, then the concave grouting groove is cleaned up, and finally the concave grouting groove is cleaned with compressed air. rinsing water to dry.
  4. 根据权利要求1或3所述的方法，其特征在于：实施步骤二以前，用水准仪测出凹型灌浆槽内底部角钢的安装标高，在凹型灌浆槽内沿着顺时针方向，每旋转30度在槽内侧壁做标记，用于水罐底圈壁板安装标高的控制。The method according to claim 1 or 3, characterized in that: before step 2 is performed, the installation elevation of the bottom angle steel in the concave grouting groove is measured with a level, and in the concave grouting groove along the clockwise direction, every 30 degrees of rotation The inner side wall of the tank is marked for the control of the installation elevation of the wall plate of the bottom ring of the water tank.
  5. 根据权利要求4所述的方法，其特征在于：步骤四中，所述薄垫铁厚度为0.1mm～1mm，每组块数一般为2～12块，采用耐腐蚀不锈钢材质；每张底圈壁板下面安装三组薄垫铁。The method according to claim 4, characterized in that: in step 4, the thickness of the thin horn is 0.1 mm to 1 mm, the number of each group of blocks is generally 2 to 12, and is made of corrosion-resistant stainless steel; each bottom ring Three sets of thin pads are installed under the siding.
  6. 根据权利要求5所述的方法，其特征在于：步骤六中，在底圈壁板与底部角 钢圈的连接螺栓上方粘贴两圈止水带，上面一圈为膨润土止水带，下面一圈为止水胶带。The method according to claim 5, characterized in that: in step 6, two circles of waterstops are pasted above the connecting bolts of the bottom ring wall plate and the bottom angle steel ring, the upper circle is a bentonite waterstop, and the bottom circle is completed Water tape.
  7. 根据权利要求6所述的方法，其特征在于：步骤八中，所述的混凝土为含有防渗剂和膨胀剂的细石混凝土。The method according to claim 6, characterized in that: in step 8, the concrete is a fine stone concrete containing an anti-seepage agent and an expansion agent.
  8. 根据权利要求7所述的方法，其特征在于：水罐安装完后，在凹型灌浆槽的罐壁内一侧上表面和水罐内基础找平层表面涂刷防水涂料。The method according to claim 7, wherein after the water tank is installed, the upper surface of the inner side of the tank wall of the concave grouting tank and the surface of the foundation leveling layer in the water tank are painted with waterproof paint.
PCT/CN2022/080719 2021-03-24 2022-03-14 Anti-leakage construction method for bottomless bolt connection type water tank WO2022199415A1 (en)

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CN112922425B (en) * 2021-03-24 2022-07-01 中化二建集团有限公司 Non-bottom bolt connection type water tank anti-leakage construction method
CN114960728B (en) * 2022-06-22 2023-11-21 江苏京源环保股份有限公司 Steel cylinder and concrete bottom surface sealing connection structure

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