A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permeable cement mixing pile, mixing pile machine and method for acquiring permeability coefficient of roadbed
The invention relates to a permeable cement mixing pile, a mixing pile machine and a roadbed permeability coefficient acquisition method. The permeable cement mixing pile comprises coarse aggregate and cement paste, the coarse aggregate and the cement paste are mixed to form a permeation channel, and the permeation channel can extend to the upper end and the lower end of the mixing pile. A permeation channel is formed in the formed mixing pile by adding coarse aggregate, the permeation channel can extend to the upper end and the lower end of the mixing pile, a complete permeation pipeline is formed in the cement mixing pile, foundation soil and water can flow out smoothly and conveniently, dissipation of water pressure in gaps of a soil body is facilitated, consolidation and sedimentation of the soil body are accelerated, and the phenomenon that after an expressway is built, the soil body is blocked is avoided. And new sedimentation is still generated. The invention relates to a subgrade permeability coefficient acquisition method, which comprises the following steps: arranging an observation hole in a subgrade soil body, arranging two pore water pressure gauges to measure the permeability coefficient of foundation soil, observing the change rule of the soil body permeability coefficient along with time, and finally calculating the time required for completing all settlement of the foundation soil, thereby providing a basis for highway construction and design.
本发明涉及透水水泥搅拌桩、搅拌桩机及路基渗透系数的获取方法。透水水泥搅拌桩，包括粗骨料和水泥浆，粗骨料和水泥浆混合能够形成渗透通道，渗透通道能够延伸至搅拌桩的上端和下端。通过增加粗骨料使得形成的搅拌桩内部具有渗透通道，渗透通道能够延伸至搅拌桩的上端和下端，在水泥搅拌桩内部形成完整的渗透管道，方便地基土水的顺利流出，方便土体空隙水压力的消散，加快土体的固结沉降，避免高速公路建成后，仍产生新的沉降。一种路基渗透系数的获取方法，在路基土体内设置观测孔，设置2处孔隙水压力计测定地基土的渗透系数，观测土体渗透系数随时间的变化规律，最终计算地基土完成全部沉降所需要的时间，给高速公路建设，设计提供依据。
Permeable cement mixing pile, mixing pile machine and method for acquiring permeability coefficient of roadbed
The invention relates to a permeable cement mixing pile, a mixing pile machine and a roadbed permeability coefficient acquisition method. The permeable cement mixing pile comprises coarse aggregate and cement paste, the coarse aggregate and the cement paste are mixed to form a permeation channel, and the permeation channel can extend to the upper end and the lower end of the mixing pile. A permeation channel is formed in the formed mixing pile by adding coarse aggregate, the permeation channel can extend to the upper end and the lower end of the mixing pile, a complete permeation pipeline is formed in the cement mixing pile, foundation soil and water can flow out smoothly and conveniently, dissipation of water pressure in gaps of a soil body is facilitated, consolidation and sedimentation of the soil body are accelerated, and the phenomenon that after an expressway is built, the soil body is blocked is avoided. And new sedimentation is still generated. The invention relates to a subgrade permeability coefficient acquisition method, which comprises the following steps: arranging an observation hole in a subgrade soil body, arranging two pore water pressure gauges to measure the permeability coefficient of foundation soil, observing the change rule of the soil body permeability coefficient along with time, and finally calculating the time required for completing all settlement of the foundation soil, thereby providing a basis for highway construction and design.
本发明涉及透水水泥搅拌桩、搅拌桩机及路基渗透系数的获取方法。透水水泥搅拌桩，包括粗骨料和水泥浆，粗骨料和水泥浆混合能够形成渗透通道，渗透通道能够延伸至搅拌桩的上端和下端。通过增加粗骨料使得形成的搅拌桩内部具有渗透通道，渗透通道能够延伸至搅拌桩的上端和下端，在水泥搅拌桩内部形成完整的渗透管道，方便地基土水的顺利流出，方便土体空隙水压力的消散，加快土体的固结沉降，避免高速公路建成后，仍产生新的沉降。一种路基渗透系数的获取方法，在路基土体内设置观测孔，设置2处孔隙水压力计测定地基土的渗透系数，观测土体渗透系数随时间的变化规律，最终计算地基土完成全部沉降所需要的时间，给高速公路建设，设计提供依据。
Permeable cement mixing pile, mixing pile machine and method for acquiring permeability coefficient of roadbed
透水水泥搅拌桩、搅拌桩机及路基渗透系数的获取方法
GUI YANG (author) / CAI XIANQING (author) / XIA HONGJI (author) / FANG ZHENG (author) / REN TIANYONG (author) / YANG LEI (author) / MA JIANHUI (author) / ZOU YUTAN (author) / CHEN CONGRUI (author) / ZHANG WEIXI (author)
2024-04-26
Patent
Electronic Resource
Chinese
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