WO2020042192A1 - 一种采用架桥机的打桩方法及专用设备 - Google Patents

一种采用架桥机的打桩方法及专用设备 Download PDF

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Publication number
WO2020042192A1
WO2020042192A1 PCT/CN2018/103698 CN2018103698W WO2020042192A1 WO 2020042192 A1 WO2020042192 A1 WO 2020042192A1 CN 2018103698 W CN2018103698 W CN 2018103698W WO 2020042192 A1 WO2020042192 A1 WO 2020042192A1
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Prior art keywords
pile
bridge
machine
construction
erecting machine
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PCT/CN2018/103698
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English (en)
French (fr)
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沙焕焕
魏东海
邓亚光
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沙焕焕
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Publication of WO2020042192A1 publication Critical patent/WO2020042192A1/zh

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers

Definitions

  • the invention relates to a pile driving method and special equipment.
  • the existing superstructures of highways, railways, pipelines and other viaducts are increasingly constructed by factory prefabrication and then transported to the site for assembly.
  • the bridge erecting machine is traveling on the bridge track and placing the prefabricated beams on the prefabricated.
  • This method requires the lower pile foundation to be laid in advance.
  • the pile foundation needs an independent construction scheme to be constructed first. If the engineering geological conditions are complex or in rivers and lakes, the pile foundation construction is difficult and the progress of the project is slow. The use of additional facilities such as piling boats and temporary trestle is expensive.
  • the purpose of the present invention is to provide a pile driving method and special equipment using a bridge erecting machine with convenient construction and high work efficiency.
  • a piling method using a bridge erecting machine which is characterized in that: a bridge erecting machine and a piling machine are used for construction; a front and rear telescopic arms at the front end of the bridge erecting machine are provided with a longitudinal support frame that can be telescopically extended to the ground and bridge erecting At least one of a drilling machine, a mixer, and a pile driver capable of moving forward and backward along the slide rail on the bridge erecting machine is mounted on the machine;
  • Construction includes the following steps:
  • the start of the project is generally an approach bridge with ground construction conditions.
  • the conventional three-span pile foundation is used for the construction of a conventional pile driver.
  • a prefabricated pile cap is equipped with a prefabricated cap beam to connect with the prefabricated platform, and then the prefabricated platform is installed.
  • Prefabricated pier then complete the bridge machine assembly on the pier, and use the bridge machine to install the prefabricated abutment;
  • the prefabricated piles are transported to the pile driver through the completed bridge deck at the rear, and lowered vertically to the ground.
  • the precast pile is sunk to a predetermined depth by one or more methods of pressing, vibration and hammering.
  • the precast pile body is provided with a steel pipe as a longitudinal penetrating pipe.
  • the high-speed pump on the pile driver can be used to drive the quick-setting cement slurry and gas. 1.
  • the soil under the pile is scoured by powder, the resistance is temporarily reduced to cause the pipe pile to sink, the cement soil solidifies in the later period, and the strength of the soil around the pile is increased;
  • a construction equipment for a piling method using a bridge erecting machine comprising: a bridge erecting machine; longitudinal support frames that are longitudinally retractable and fixed to the ground are provided on the front and rear telescopic arms at the front end of the bridge erecting machine; and the main body of the bridge erecting machine
  • the legs rest on the bridge pier and the longitudinal support frame, and slide rails are provided on the main body and the telescopic arm; at least one of a hole guide machine, a mixer, and a pile driver that can be moved on the slide rail is provided on the pile driver.
  • the invention is convenient and fast in construction, so that the bridge prefabrication method includes a pile foundation, which greatly improves the construction efficiency and saves the construction cost.
  • Figure 1 is a schematic diagram of the construction equipment of the present invention.
  • a piling method using a bridge erecting machine which is characterized in that: a bridge erecting machine and a piling machine are used for construction; a front and rear telescopic arms at the front end of the bridge erecting machine are provided with a longitudinal support frame that can be telescopically extended to the ground and bridge erecting At least one of a drilling machine, a mixer, and a pile driver capable of moving forward and backward along the slide rail on the bridge erecting machine is mounted on the machine;
  • Construction includes the following steps:
  • the start of the project is generally an approach bridge with ground construction conditions.
  • the conventional three-span pile foundation is used for the construction of a conventional pile driver.
  • a prefabricated pile cap is equipped with a prefabricated cap beam to connect with the prefabricated platform, and then the prefabricated platform is installed. 7.
  • Prefabricated bridge pier 8 then complete the bridge machine assembly on the bridge pier, and use the bridge machine to install the prefabricated abutment 9;
  • the subsequent mobile pile driver is moved to the pile position by the slide rail on the front arm of the bridge erecting machine.
  • the precast pile 10 is transported to the pile driver through the completed bridge deck at the rear, and is lowered vertically to the ground.
  • One or more methods of holding pressure, vibration, and hammer hit the prefabricated pile to a predetermined depth.
  • the prefabricated pile body is provided with 1 to 4 (or more) steel pipes as longitudinal penetrating pipes, which can be passed through the pile driver.
  • the high-pressure pump penetrates into the soil at the bottom of the pile with quick-setting cement slurry, gas, and powder, which temporarily reduces the resistance and causes the pipe pile to sink. Later, the cement soil solidifies and the strength of the soil around the pile increases.
  • a construction equipment for a pile driving method using a bridge erecting machine includes a bridge erecting machine 1, and a longitudinal support frame 3 which can be telescopically extended and fixed to the ground is provided on the front and rear telescopic arms 2 of the front of the bridge erecting machine.
  • the legs 4 rest on the bridge pier and the longitudinal support frame, and a slide rail 5 is provided on the main body; and a pile driver 6 that can be moved on the slide rail is also provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Bridges Or Land Bridges (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

一种采用架桥机的打桩方法及专用设备，采用架桥机（1）、打桩机（6）进行施工；在架桥机（1）前端的前后可伸缩臂（2）上设置可纵向伸缩、伸至地面的纵向支撑架（3），架桥机（1）上装可沿架桥机（1）上滑轨（5）前后移动的引孔机、搅拌机、打桩机（6）中的至少一种。该施工方法及专用设备方便、快捷，使桥梁预制法施工包括了桩基，大大提高了施工效率，节省了施工成本。

Description

一种采用架桥机的打桩方法及专用设备 技术领域
本发明涉及一种打桩方法及专用设备。
 背景技术
现有的公路、铁路、管线等高架桥的上部结构建设越来越多地采用工厂预制再运至现场拼装的方法，架桥机就是在桥梁轨道上行驶，将预制好的梁片放置到预制好的桥墩上去的设备，这种方法要求提前打好下部桩基，桩基需要独立施工方案先行施工。若工程地质条件复杂或处于江海湖泊中，则桩基施工难度大、工程进展慢，采用打桩船、临时栈桥等额外设施造价高昂。
 技术问题
本发明的目的在于提供一种施工方便，工作效率高的采用架桥机的打桩方法及专用设备。
 技术解决方案
一种采用架桥机的打桩方法，其特征是：采用架桥机、打桩机进行施工；在架桥机前端的前后可伸缩臂上设置可纵向伸缩、伸至地面的纵向支撑架，架桥机上装可沿架桥机上滑轨前后移动的引孔机、搅拌机、打桩机中的至少一种；
施工包括下列步骤：
（1）工程开始一般为引桥，具备地面施工条件，采用常规打桩机施工前三跨的桩基，在预制桩桩顶部设有装配式帽梁可与预制承台连接，再安装装预制承台、预制桥墩，然后在桥墩上完成架桥机组装，采用架桥机安装预制桥台；
（2）架桥机前端的前后可伸缩臂前伸，伸至超过下一处桩位后下放纵向支撑架，支撑架固定于地面；
（3）若沉桩困难需要引孔或者需要采用水泥土与预制桩复合，则先将移动式引孔机或搅拌机通过架桥机前端臂上的滑轨移动至桩位，进行引孔或搅拌作业，然后移出桩位；
（4）将后续移动式打桩机通过架桥机前端臂上的滑轨移动至桩位，预制桩通过后方已施工完成的桥面运至打桩机处，垂直下放至地面，通过顶压、抱压、振动、锤击中的一种或几种方式使预制桩下沉至预定深度，预制桩身设有钢管作为纵向贯通式管道，可通过打桩机上的高压泵打入速凝水泥浆、气、粉冲刷桩底土体，临时减少阻力使管桩下沉，后期水泥土体凝固，桩周土体强度提升；
（5）该桩位上桩全部施工完成后将预制承台、预制桥墩通过后方已施工完成的桥面运至桩位处安装；
（6）架桥机向前移动一跨，使架桥机前腿固定于于最新施工的桥墩上，收起地面的支撑架，再将可伸缩臂前伸。
重复步骤（2）~（6）直至桥梁全部施工完成。
一种采用架桥机的打桩方法用施工设备，其特征是：包括架桥机，在架桥机前端的前后可伸缩臂上设置可纵向伸缩、固定于地面的纵向支撑架，架桥机主体通过支腿搁置在所述桥墩及纵向支撑架上，主体及伸缩臂上设有滑轨；另设有可在滑轨上移动的引孔机、搅拌机、打桩机中的至少一种，打桩机上设有高压泵。
 有益效果
本发明施工方便、快捷，使桥梁预制法施工包括了桩基，大大提高了施工效率，节省了施工成本。
 附图说明
图1是本发明施工设备示意图。
 本发明的最佳实施方式
一种采用架桥机的打桩方法，其特征是：采用架桥机、打桩机进行施工；在架桥机前端的前后可伸缩臂上设置可纵向伸缩、伸至地面的纵向支撑架，架桥机上装可沿架桥机上滑轨前后移动的引孔机、搅拌机、打桩机中的至少一种；
施工包括下列步骤：
（1）工程开始一般为引桥，具备地面施工条件，采用常规打桩机施工前三跨的桩基，在预制桩桩顶部设有装配式帽梁可与预制承台连接，再安装装预制承台7、预制桥墩8，然后在桥墩上完成架桥机组装，采用架桥机安装预制桥台9；
（2）架桥机前端的前后可伸缩臂前伸，伸至超过下一处桩位后下放纵向支撑架，支撑架固定于地面；
（3）若沉桩困难需要引孔或者需要采用水泥土与预制桩复合，则先将移动式引孔机或搅拌机通过架桥机前端臂上的滑轨移动至桩位，进行引孔或搅拌作业，然后移出桩位；
（4）将后续移动式打桩机通过架桥机前端臂上的滑轨移动至桩位，预制桩10通过后方已施工完成的桥面运至打桩机处，垂直下放至地面，通过顶压、抱压、振动、锤击中的一种或几种方式使预制桩下沉至预定深度，预制桩身设有1~4根（或更多）钢管作为纵向贯通式管道，可通过打桩机上的高压泵打入速凝水泥浆、气、粉冲刷桩底土体，临时减少阻力使管桩下沉，后期水泥土体凝固，桩周土体强度提升；
（5）该桩位上桩全部施工完成后将预制承台、预制桥墩通过后方已施工完成的桥面运至桩位处安装；
（6）架桥机向前移动一跨，使架桥机前腿固定于于最新施工的桥墩上，收起地面的支撑架，再将可伸缩臂前伸，重复步骤（2）~（6）直至桥梁全部施工完成。
一种采用架桥机的打桩方法用施工设备，包括架桥机1，在架桥机前端的前后可伸缩臂2上设置可纵向伸缩、固定于地面的纵向支撑架3，架桥机主体通过支腿4搁置在所述桥墩及纵向支撑架上，主体上设有滑轨5；另设有可在滑轨上移动的打桩机6。

Claims (2)

  1. 一种采用架桥机的打桩方法，其特征是：采用架桥机、打桩机进行施工；在架桥机前端的前后可伸缩臂上设置可纵向伸缩、伸至地面的纵向支撑架，架桥机上装可沿架桥机上滑轨前后移动的引孔机、搅拌机、打桩机中至少一种；
    施工包括下列步骤：
    （1）工程开始为引桥，具备地面施工条件，采用打桩机施工前几跨的桩基，在预制桩桩顶部设有装配式帽梁可与预制承台连接，再安装装预制承台、预制桥墩，然后在桥墩上完成架桥机组装，采用架桥机安装预制桥台；
    （2）架桥机前端的前后可伸缩臂前伸，伸至超过下一处桩位后下放纵向支撑架，支撑架固定于地面；
    （3）若沉桩困难需要引孔或者需要采用水泥土与预制桩复合，则先将移动式引孔机或搅拌机通过架桥机前端臂上的滑轨移动至桩位，进行引孔或搅拌作业，然后移出桩位；
    （4）将后续移动式打桩机通过架桥机前端臂上的滑轨移动至桩位，预制桩通过后方已施工完成的桥面运至打桩机处，垂直下放至地面，通过顶压、抱压、振动、锤击中的一种或几种方式使预制桩下沉至预定深度，预制桩身设有钢管作为纵向贯通式管道，可通过打桩机上的高压泵打入速凝水泥浆、气、粉冲刷桩底土体，临时减少阻力使管桩下沉，后期水泥土体凝固，桩周土体强度提升；
    （5）该桩位上桩全部施工完成后将预制承台、预制桥墩通过后方已施工完成的桥面运至桩位处安装；
    （6）架桥机向前移动一跨，使架桥机前腿固定于于最新施工的桥墩上，收起地面的支撑架，再将可伸缩臂前伸；
    重复步骤（2）~（6）直至桥梁全部施工完成。
  2. 一种权利要求1所述的采用架桥机的打桩方法用施工设备，其特征是：包括架桥机，在架桥机前端的前后可伸缩臂上设置可纵向伸缩、固定于地面的纵向支撑架，架桥机主体通过支腿搁置在所述桥墩及纵向支撑架上，主体及伸缩臂上设有滑轨；另设有可在滑轨上移动的引孔机、搅拌机、打桩机中的至少一种，打桩机上设有高压泵。
PCT/CN2018/103698 2018-08-31 2018-09-02 一种采用架桥机的打桩方法及专用设备 WO2020042192A1 (zh)

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CN111254837B (zh) * 2020-03-04 2021-06-22 成都天府轨谷科技有限公司 桥机钓鱼法修建桥梁的施工方法

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