Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of soft soil foundation pile foundation
The invention discloses a construction method of a soft soil foundation pile foundation. The construction method comprises the following steps of determining construction parameters through a grouting experiment; fixing the test hole pile position on the construction axis by using a timber pile; aligning a drilling machine with the hole site, and adopting a slurry retaining wall slewing drilling machine; moving a high-pressure spraying machine to an orifice, spraying slurry and gas on the ground, and checking whether the design requirements are met or not; moving a high-pressure jet grouting machine to a jet grouting pile, performing ground cement paste, gas and water test spraying first so as to guaranteed that all pipelines are unblocked, and preparing for drilling after inspection is qualified; lowering a spraying tank to the design depth after various process parameters meet the design requirements, and adjusting the injection direction for injection grouting; starting to lift a spray pipe according to a designed lifting mode and speed, and spraying to a designed spray top height; and recharging in time after spraying is finished. According to the construction method for the test pile of the high-pressure jet grouting pile, relevant parameters of pile forming construction are determined according to the result of the test pile construction, the construction efficiency is improved, and smooth reinforcement of the earth surface is guaranteed.
本发明公开了一种软土地基桩基施工方法，步骤如下：通过灌浆实验确定施工参数；在施工轴线上用木桩固定试验孔桩位；将钻机对准孔位，采用泥浆护壁回转钻机；将高喷机移至孔口，在地面上进行浆、气喷射，检查是否符合设计要求；将高压旋喷机移至旋喷桩处，先进行地面水泥浆、气及水试喷，确保各管路畅通，检验合格后准备钻孔；各项工艺参数符合设计要求后，将喷射罐下至设计深度，调整喷射方向进行喷射灌浆；以设计提升方式及速度开始提升喷管，喷射到设计喷顶高度；喷射结束，需及时回灌。本高压旋喷桩试桩的施工方法，根据试桩施工的结果确定成桩施工的相关参数，提高了施工效率，确保了地表的顺利加固。
Construction method of soft soil foundation pile foundation
The invention discloses a construction method of a soft soil foundation pile foundation. The construction method comprises the following steps of determining construction parameters through a grouting experiment; fixing the test hole pile position on the construction axis by using a timber pile; aligning a drilling machine with the hole site, and adopting a slurry retaining wall slewing drilling machine; moving a high-pressure spraying machine to an orifice, spraying slurry and gas on the ground, and checking whether the design requirements are met or not; moving a high-pressure jet grouting machine to a jet grouting pile, performing ground cement paste, gas and water test spraying first so as to guaranteed that all pipelines are unblocked, and preparing for drilling after inspection is qualified; lowering a spraying tank to the design depth after various process parameters meet the design requirements, and adjusting the injection direction for injection grouting; starting to lift a spray pipe according to a designed lifting mode and speed, and spraying to a designed spray top height; and recharging in time after spraying is finished. According to the construction method for the test pile of the high-pressure jet grouting pile, relevant parameters of pile forming construction are determined according to the result of the test pile construction, the construction efficiency is improved, and smooth reinforcement of the earth surface is guaranteed.
本发明公开了一种软土地基桩基施工方法，步骤如下：通过灌浆实验确定施工参数；在施工轴线上用木桩固定试验孔桩位；将钻机对准孔位，采用泥浆护壁回转钻机；将高喷机移至孔口，在地面上进行浆、气喷射，检查是否符合设计要求；将高压旋喷机移至旋喷桩处，先进行地面水泥浆、气及水试喷，确保各管路畅通，检验合格后准备钻孔；各项工艺参数符合设计要求后，将喷射罐下至设计深度，调整喷射方向进行喷射灌浆；以设计提升方式及速度开始提升喷管，喷射到设计喷顶高度；喷射结束，需及时回灌。本高压旋喷桩试桩的施工方法，根据试桩施工的结果确定成桩施工的相关参数，提高了施工效率，确保了地表的顺利加固。
Construction method of soft soil foundation pile foundation
一种软土地基桩基施工方法
ZHANG QIUMING (Autor:in) / LIN QIBIN (Autor:in) / LI MIANXIN (Autor:in) / CAO GUIQIANG (Autor:in) / ZHAO XUEJUN (Autor:in)
02.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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