A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for calculating height of pile sinking soil plug of open tubular pile in multilayer soil
The invention provides a method for calculating the height of a pile sinking soil plug of an open tubular pile in multilayer soil. The method comprises the following steps: sinking a tubular pile; calculating upward supporting force N of a soil layer on the bottom surface of the soil plug borne by the soil plug in the pile sinking process of the tubular pile by using numerical software; assuming that the soil plug only contains the first layer of soil, calculating gravity G and friction force F according to the weight gamma1 of the first layer of soil, calculating the height H of the soil plug according to the stress balance of the soil plug, comparing H with h1, and if H is less than or equal to h1, determining that the assumption in the step is correct and the calculated H value is the height of the soil plug; if Hgt; h1, supposing that the soil plug only contains the first layer of soil and the second layer of soil; according to the method, the height of the soil plug of the tubular pile in any multi-layer soil and at any pile sinking depth can be obtained, a foundation is provided for research and analysis of the soil plug effect and the soil squeezing effect, actual measurement of the height of the soil plug is not needed, and the cost is low.
本发明提供一种多层土中开口管桩沉桩土塞高度计算方法，通过对管桩进行沉桩；用数值软件计算管桩沉桩过程中土塞受到的土塞底面土层向上的支持力N；假设土塞只含第1层土，根据第1层土的重度γ1计算重力G和摩擦力F，根据土塞受力平衡计算土塞高度H，并对H与h1比较大小，若H≤h1，则本步假设正确，计算的H值就是土塞高度；若H>h1，则假设土塞只含第1层土和第2层土；一直类似迭代计算下去，直到假设正确，计算的H值就是土塞高度，该方法可获取在任意多层土中和任意沉桩深度下的管桩土塞高度,为研究分析土塞效应和挤土效应提供基础，不需要对土塞高度进行实测，成本较低。
Method for calculating height of pile sinking soil plug of open tubular pile in multilayer soil
The invention provides a method for calculating the height of a pile sinking soil plug of an open tubular pile in multilayer soil. The method comprises the following steps: sinking a tubular pile; calculating upward supporting force N of a soil layer on the bottom surface of the soil plug borne by the soil plug in the pile sinking process of the tubular pile by using numerical software; assuming that the soil plug only contains the first layer of soil, calculating gravity G and friction force F according to the weight gamma1 of the first layer of soil, calculating the height H of the soil plug according to the stress balance of the soil plug, comparing H with h1, and if H is less than or equal to h1, determining that the assumption in the step is correct and the calculated H value is the height of the soil plug; if Hgt; h1, supposing that the soil plug only contains the first layer of soil and the second layer of soil; according to the method, the height of the soil plug of the tubular pile in any multi-layer soil and at any pile sinking depth can be obtained, a foundation is provided for research and analysis of the soil plug effect and the soil squeezing effect, actual measurement of the height of the soil plug is not needed, and the cost is low.
本发明提供一种多层土中开口管桩沉桩土塞高度计算方法，通过对管桩进行沉桩；用数值软件计算管桩沉桩过程中土塞受到的土塞底面土层向上的支持力N；假设土塞只含第1层土，根据第1层土的重度γ1计算重力G和摩擦力F，根据土塞受力平衡计算土塞高度H，并对H与h1比较大小，若H≤h1，则本步假设正确，计算的H值就是土塞高度；若H>h1，则假设土塞只含第1层土和第2层土；一直类似迭代计算下去，直到假设正确，计算的H值就是土塞高度，该方法可获取在任意多层土中和任意沉桩深度下的管桩土塞高度,为研究分析土塞效应和挤土效应提供基础，不需要对土塞高度进行实测，成本较低。
Method for calculating height of pile sinking soil plug of open tubular pile in multilayer soil
一种多层土中开口管桩沉桩土塞高度计算方法
LI XIAOMI (author) / ZHAO HUILING (author) / CHEN FENGJUN (author) / ZHOU QUANJI (author) / LI RONGSHUAI (author) / YANG RENWEI (author)
2023-09-08
Patent
Electronic Resource
Chinese
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