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申请号:201910838806.0 公开号:CN110845190A 主分类号:C04B28/04
摘要:【中文】本发明公开了一种应用于湿法喷射施工的超高性能水泥基材料,其包括按重量计分的如下配料:水泥300‑400份、粉煤灰漂珠50‑100份、硅灰50‑100份、超细石灰石粉40‑70份,表面活性剂5‑15份、镁质膨胀剂30‑50份、石英砂300‑400份、珊瑚礁砂100‑200份、微丝钢纤维30‑70份、超高分子量聚乙烯纤维3‑6份、矿物添加剂1‑5份、拌合水90‑120份、速凝剂25‑45份;其中,所述表面活性剂为萘系或脂肪族类有机粉体;所述矿物添加剂为凹凸棒土凝胶粉末,平均粒径5~15μm;所述速凝剂为总碱含量不大于1%的无碱速凝剂,主要成分为硫酸铝和有机胺本发明具备实现超高性能混凝土的连续湿法喷射施工,大幅度提高喷射混凝土的力学性能和耐久性能的技术效果。可广泛应用于水泥基材料制备领域。 【EN】The invention discloses an ultrahigh-performance cement-based material applied to wet-process injection construction, which comprises the following ingredients in parts by weight: 400 parts of cement, 50-100 parts of fly ash floating beads, 50-100 parts of silica fume, 40-70 parts of superfine limestone powder, 5-15 parts of surfactant, 30-50 parts of magnesium expanding agent, 400 parts of quartz sand, 100 parts of coral reef sand, 200 parts of microfilament steel fiber, 3-6 parts of ultrahigh molecular weight polyethylene fiber, 1-5 parts of mineral additive, 90-120 parts of mixing water and 25-45 parts of accelerating agent; wherein the surfactant is naphthalene series or aliphatic organic powder; the mineral additive is attapulgite gel powder, and the average particle size is 5-15 mu m; the accelerator is an alkali-free accelerator with the total alkali content not more than 1 percent, and the main components are aluminum sulfate and organic amine. Can be widely applied to the field of cement-based material preparation.
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申请号:201910994490.4 公开号:CN110847201A 主分类号:E02D23/00
摘要:【中文】本发明公开了一种可快速装拆的沉井临时外壁系统,与台阶型沉井基础的台阶处相连,包括:钢外壁结构;紧固分离装置,其位于钢外壁结构的底部,并可与沉井接触面紧固密封或分离;内支撑体系,其位于钢外壁结构与沉井井壁之间,以向钢外壁结构提供侧向支撑。本发明达到止水效果好,结构稳定性强,挡土挡水效果好,安装及拆除方便快捷、水下作业极少、安全性高,不占用大型起重设备,充分满足了台阶型沉井施工的各项要求。 【EN】The invention discloses a sinking well temporary outer wall system capable of being quickly assembled and disassembled, which is connected with a step of a step type sinking well foundation and comprises the following components: a steel outer wall structure; the fastening and separating device is positioned at the bottom of the steel outer wall structure and can be fastened, sealed or separated from the open caisson contact surface; and the inner support system is positioned between the steel outer wall structure and the wall of the open caisson so as to provide lateral support for the steel outer wall structure. The invention has the advantages of good water stopping effect, strong structural stability, good soil and water retaining effect, convenient and quick installation and removal, little underwater operation, high safety, no occupation of large-scale hoisting equipment and full satisfaction of various requirements of step type open caisson construction.
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申请号:201911068252.7 公开号:CN110846107A 主分类号:C10M169/04
摘要:【中文】本发明公开了一种混凝土用消泡脱模剂及其制备方法,该消泡脱模剂包括按重量份计的以下成分,石蜡20~25份、硬脂酸10~15份、聚硅氧烷15~20份、助乳化剂3~6份;稳定剂1~2份、增稠剂1~2份、丙三醇聚氧乙烯聚氧丙烯醚14~18份、植物油4~8份、疏水性气相白炭黑1~3份、乳化剂2~3份和去离子水160~200份。该消泡脱模剂性能稳定,适应性强,脱膜效果好、抑泡性强,可以提高混凝土的外观质量。 【EN】The invention discloses a defoaming and releasing agent for concrete and a preparation method thereof, wherein the defoaming and releasing agent comprises the following components, by weight, 20-25 parts of paraffin, 10-15 parts of stearic acid, 15-20 parts of polysiloxane and 3-6 parts of an auxiliary emulsifier; 1-2 parts of a stabilizer, 1-2 parts of a thickening agent, 14-18 parts of glycerol polyoxyethylene polyoxypropylene ether, 4-8 parts of vegetable oil, 1-3 parts of hydrophobic fumed silica, 2-3 parts of an emulsifier and 160-200 parts of deionized water. The defoaming release agent has stable performance, strong adaptability, good demoulding effect and strong foam inhibition, and can improve the appearance quality of concrete.
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申请号:201911119342.4 公开号:CN110847044A 主分类号:E01D21/00
摘要:【中文】一种半预制装配式盖梁的施工方法,包括盖梁模架,盖梁模架通过多块模板组装,模板内部安装多个空心管道,在盖梁模架内部灌入水泥制造出盖梁,通过起吊设备将盖梁吊装到墩柱拼装。采用薄壁外壳预制,吊装完成后绑扎钢筋现浇内部内芯混凝土。底板预留孔洞待安装时与桩基相接,盖梁设置临时预应力和永久预应力。能够解决传统预制盖梁重量大,对运输设备、吊装设备及吊装空间等要求较高,在城市建筑密集区等情况下应用预制拼装工艺具有很大的难度的问题;相对于现浇盖梁,省去了现场布置支架,浇筑完成后拆模等工序,减少了一次浇筑的方量,解决了现场管理调度繁杂的问题;相对于预制钢盖梁,后期养护工作量较小,综合造价较低。 【EN】A construction method of a semi-prefabricated assembled bent cap comprises a bent cap die carrier, wherein the bent cap die carrier is assembled through a plurality of templates, a plurality of hollow pipelines are installed inside the templates, cement is poured into the bent cap die carrier to manufacture the bent cap, and the bent cap is hoisted to a pier column through hoisting equipment to be assembled. The thin-wall shell is adopted for prefabrication, and reinforcing steel bar binding is carried out after the hoisting is finished, so that the inner core concrete is cast in situ. The reserved holes of the base plate are connected with the pile foundation when being installed, and the cover beam is provided with temporary prestress and permanent prestress. The problems that the traditional prefabricated bent cap is heavy in weight, high in requirements on transportation equipment, hoisting space and the like, and great difficulty is caused when a prefabricated assembling process is applied in urban building dense areas and the like can be solved; compared with a cast-in-place bent cap, the cast-in-place bent cap saves the procedures of arranging a bracket on site, removing a mold after casting is finished and the like, reduces the square amount of one-time casting, and solves the problem of complicated field management and scheduling; compared with a prefabricated steel bent cap, the later-period maintenance workload is small, and the comprehensive manufacturing cost is low.
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申请号:201911150450.8 公开号:CN110847047A 主分类号:E01D21/00
摘要:【中文】一种外海裸岩栈桥施工方法,在施工岸边初步按照梁岸操作桥,梁岸操作桥上通过打桩机将多根钢管桩按照四边形结构方位打入岩层,再在四边形结构的钢管桩根部安装多个稳定围堰架,再通过定位架进行临时稳定,再通过多根平连杆将钢管桩进行连接,连接后再钢管桩上依次安装贝雷架,贝雷架上安装走道,走道两侧安装护栏,贝雷架上的走道安装与梁岸操作桥平齐,在多根钢管桩根部安装了互相连接的稳定围堰架,稳定围堰架将多根钢管桩根部进行有效的稳定作用,提高了钢管桩的稳定性,且简化了栈桥的施工难题。 【EN】A construction method of an open sea bare rock trestle comprises the steps of preliminarily operating the trestle according to a beam bank at a construction bank, driving a plurality of steel pipe piles into a rock stratum according to a quadrilateral structure direction through a pile driver on the beam bank operation bridge, installing a plurality of stable cofferdam frames at the root parts of the steel pipe piles of the quadrilateral structure, temporarily stabilizing through a positioning frame, connecting the steel pipe piles through a plurality of flat connecting rods, sequentially installing bailey frames on the steel pipe piles after connection, installing walkways on the bailey frames, installing guardrails on two sides of the walkways, arranging the walkways on the bailey frames to be flush with the beam bank operation bridge, installing the stable cofferdam frames connected with each other at the root parts of the plurality of steel pipe piles, effectively stabilizing the root parts of the plurality of steel pipe piles through the stable cofferdam frames, improving the stability of the steel pipe piles, and simplifying the construction difficulty of.
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申请号:201911150464.X 公开号:CN110847048A 主分类号:E01D21/00
摘要:【中文】一种波形钢腹板定位施工方法,在桥梁的桥梁底板两侧安装模板,模板一侧安装脚手架,通过多个多个调节装置对波腹板进行位置调节,调节完毕后安装固定用的型钢,通过测量桥梁底板的斜度制造马凳,马凳使波腹板处于水平位置,通过吊机吊动波腹板,调节波腹板的高度,在波腹板与马凳之间放置适合高度的垫块,直至波腹板达到设计标高,在波腹板之间安装多根交叉的顶托架,顶托架一端抵靠在波腹板上,另一端抵靠在桥梁底板上,在脚手架与波腹板之间安装微调脚手管,微调脚手管一端与波腹板连接,另一端安装在脚手架上,在模板顶部安装手拉葫芦,手拉葫芦的拉线连接到波腹板的翼缘板上,定位方法简单、易操作,且所使用工作比较常规、廉价。 【EN】A method for positioning and constructing corrugated steel web plates includes installing templates on two sides of a bridge bottom plate of a bridge, installing a scaffold on one side of the templates, adjusting the position of an anti-wave web plate by a plurality of adjusting devices, installing section steel for fixing after adjustment is finished, manufacturing a split heads by measuring the inclination of the bridge bottom plate, enabling the anti-wave web plate to be in a horizontal position, hanging the anti-wave web plate by a crane, adjusting the height of the anti-wave web plate, placing a cushion block with a proper height between the anti-wave web plate and the split heads until the anti-wave web plate reaches a designed elevation, installing a plurality of crossed top brackets between the anti-wave web plates, enabling one end of each top bracket to abut against the anti-wave web plate and the other end to abut against the bridge bottom plate, installing a fine-tuning scaffold pipe between the scaffold and the anti-wave web plate, connecting one end of the fine-tuning scaffold pipe with the anti-wave web plate and the other end of the anti-wave, the positioning method is simple and easy to operate, and the used work is conventional and cheap.
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申请号:201911176619.7 公开号:CN110847051A 主分类号:E01D21/00
摘要:【中文】本发明提供了一种T梁中梁有限空间内负弯矩施工吊篮及使用方法,包括支撑座,支撑座两侧设有多个螺杆,螺杆与支撑座螺纹连接,所述支撑座上方两侧设有可折叠的第三护栏与第二护栏,所述第三护栏与第二护栏上设有多个钢丝绳,钢丝绳端部设有吊钩,采用折叠式护栏便于吊篮能进入T梁中梁有限空间,采用螺杆支撑在T型梁的梁靴上,吊钩挂在T型梁的箍筋上,上吊下撑式结构,吊篮整体更加稳固,调节螺杆使用不同宽度的T型梁的梁靴适用范围广,两侧的护栏高度不同,方便张拉设备进出,多重保护,稳固牢靠,成本低,适合推广使用。 【EN】The invention provides a hogging moment construction hanging basket in a limited space of a middle beam of a T-shaped beam and a using method thereof, wherein the hanging basket comprises a supporting seat, a plurality of screw rods are arranged on two sides of the supporting seat and are in threaded connection with the supporting seat, a foldable third guardrail and a foldable second guardrail are arranged on two sides above the supporting seat, a plurality of steel wire ropes are arranged on the third guardrail and the second guardrail, lifting hooks are arranged at the end parts of the steel wire ropes, the hanging basket can conveniently enter the limited space of the middle beam of the T-shaped beam by adopting the foldable guardrails, the hanging hooks are supported on beam shoes of the T-shaped beam by adopting the screw rods and are hung on stirrups of the T-shaped beam, an up-hanging and down-supporting structure is adopted, the hanging basket is integrally more stable, the application range of the T-shaped beam shoes with different widths for adjusting the screw rods.
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申请号:201911206249.7 公开号:CN110863841A 主分类号:E21D11/10
摘要:【中文】本发明公开了一种大跨度浅埋暗挖隧道二衬三步施工方法,在某一施工段内采用先仰拱,再拱墙,最后拱顶闭合的顺序施工,每一步施工前先割除对应施工段内的临时支撑再进行施工,所有施工段施工完成后再拆除剩余的临时支撑。本发明克服了复杂地质条件下高风险大跨度超浅埋暗挖隧道二衬施工导致结构变形,引起地表沉降、隧道失稳等风险;提高隧道二衬结构的密实性;更好控制钢筋保护层厚度及二衬主体结构厚度。 【EN】The invention discloses a two-lining three-step construction method for a large-span shallow-buried underground tunnel. The method overcomes the risks of surface subsidence, tunnel instability and the like caused by structural deformation due to secondary lining construction of the high-risk large-span ultra-shallow buried excavation tunnel under the complex geological condition; the compactness of the tunnel secondary lining structure is improved; the thickness of the steel bar protective layer and the thickness of the two-lining main body structure can be better controlled.
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申请号:201911032713.5 公开号:CN110886188A 主分类号:E01D11/02
摘要:【中文】本发明公开了一种大跨悬索桥加劲梁架设系统及其使用方法,在主缆上安装临时吊索,进而安装承重索托梁并架设行走承重索机构,利用主缆承重,充分节省了架梁设备,牵引机构在第一卷扬机的带动作用下,带动已获取加劲梁的加劲梁运输提升装置沿行走承重索机构长度方向从其中一个桥塔移动直至到达安装位置,然后继续前进到达另一个桥塔再取加劲梁,施工效率提升一倍,且只用1个加劲梁运输提升装置就能实现加劲梁从主缆的跨中向两侧对称安装,解决了山区交通运输不便、垂直起吊高度太大时大跨径悬索桥加劲梁架设的难题,另外牵引机构的转动绳设置为环形并直接安装在承重索托梁上,由第一卷扬机带动,避免了以往牵引机构直接与卷扬机连接而盘绳压力大的问题。 【EN】The invention discloses a large span suspension bridge stiffening girder erection system and a use method thereof, wherein temporary slings are installed on a main cable, and further a bearing rope joist is installed and a walking bearing rope mechanism is erected, the main cable is used for bearing, girder erection equipment is fully saved, a traction mechanism drives a stiffening girder transportation lifting device which acquires the stiffening girder to move along the length direction of the walking bearing rope mechanism until the stiffening girder transportation lifting device reaches an installation position, then the traction mechanism continues to advance to reach another bridge tower and then the stiffening girder is taken, the construction efficiency is doubled, and the stiffening girder can be symmetrically installed from the span of the main cable to two sides by only 1 stiffening girder transportation lifting device, thereby solving the problems of inconvenient transportation in mountainous area transportation and erection of the large span suspension bridge stiffening girder when the vertical lifting height is too large, in addition, the rotating rope of the traction mechanism is arranged in a ring shape and is directly installed on the bearing rope joist, driven by first hoist engine, avoided in the past that drive mechanism directly is connected and the big problem of wire rope pressure with the hoist engine.
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申请号:201911061646.X 公开号:CN110886199A 主分类号:E01D19/02
摘要:【中文】本发明公开了一种适用于空心高墩的模板系统及其安装施工方法,用于浇筑墩柱,墩柱包括已浇筑墩柱节段和位于其上方的待浇墩柱节段,所述适用于空心高墩的模板系统包括设置在所述已浇墩柱节段的外侧的自动液压爬模系统,该自动液压爬模系统随浇筑高度的上升而同步提升,形成待浇墩柱节段外侧的外模板,还包括相对于所述自动液压爬模系统设置在已浇墩柱节段内侧的复合滑动模板系统,用于形成待浇墩柱节段的不断浇筑成型而同步向上提升的内模板;其中,待浇墩柱节段的内外两侧通过内模板和外模板的相互提升配合,以使该待浇墩柱节段逐渐浇筑成型。本方案具有结构稳定、施工简便且效率高。可广泛应用于空心高墩模板的安装及施工方法领域。 【EN】The invention discloses a template system suitable for a hollow high pier and an installation construction method thereof, which are used for pouring a pier stud, wherein the pier stud comprises a poured pier stud segment and a to-be-poured pier stud segment positioned above the poured pier stud segment; the inner side and the outer side of the pier stud segment to be poured are mutually lifted and matched through the inner template and the outer template, so that the pier stud segment to be poured is gradually poured and molded. This scheme has stable in structure, the construction is simple and convenient and efficient. The method can be widely applied to the field of installation and construction methods of hollow high pier templates.
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