Method for determining optimal cement mixing amount of cemented soil stiff composite pile

A technology for determining the amount of cement, which is applied to sheet pile walls, design optimization/simulation, construction, etc., can solve the problems of blindness in selecting the amount of cement, and achieve the effect of reducing consumption

Pending Publication Date: 2022-06-24
ZHONGBEI UNIV
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Problems solved by technology

[0004] The present invention overcomes the deficiencies of the prior art, and proposes a method for determining the optimal cement content of cement-soil-strength composite piles, which solves the problem of blindness in the selection of cement-soil-strength composite piles in actual engineering applications

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  • Method for determining optimal cement mixing amount of cemented soil stiff composite pile
  • Method for determining optimal cement mixing amount of cemented soil stiff composite pile
  • Method for determining optimal cement mixing amount of cemented soil stiff composite pile

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. The technical solutions of the present invention will be described in detail below with reference to the embodiments and the accompanying drawings, but the protection scope is not limited by this.

[0024] A method for determining the optimal cement content of a cement-soil stiffness composite pile, which specifically includes the following steps:

[0025] Step 1) According to the "Geotechnical Engineering Investigation Specification" GB50021-2001, the soil quality of a construction site was investigated. The results are shown in Table 1. From Table 1, it can be se...

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Abstract

The invention belongs to the technical field of foundation treatment and pile foundation engineering, and relates to a method for determining the optimal cement mixing amount of a cemented soil stiff composite pile. The method comprises the steps that a first cemented soil stiff composite pile is manufactured under the initial mixing amount; drawing an unconfined compressive strength curve graph; the vertical ultimate bearing capacity of the pile body of the first cemented soil stiff composite pile is detected, and the damage form of the pile body is observed; the cement mixing amount is adjusted through a damage form, a pile is formed again, a second cemented soil stiff composite pile is manufactured, a field load test is carried out, the damage form is changed, drawing is carried out with the vertical ultimate bearing capacity as the longitudinal axis and the unconfined compressive strength as the transverse axis, and the optimal cement mixing amount is determined; the vertical bearing capacity of the pile type can meet the design requirement, meanwhile, the economic optimum and environment protection principle is considered, and cement consumption is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of foundation treatment and pile foundation engineering, and relates to a method for determining the optimum cement content of a cement-soil stiffness composite pile. Background technique [0002] The foundation is the foundation of the building, and the quality of the foundation will directly affect the safety, economy and rationality of the building. With the continuous development of my country's modernization construction, the construction of high-rise and large-scale buildings has put forward higher requirements for building foundation engineering and foundation treatment technology. Cement-soil-stiff composite pile refers to a composite pile formed by concentrically implanting a rigid core pile into a cement-soil mixing pile that has not yet been initially set. This type of pile combines the advantages of high lateral friction resistance of cement-soil piles and high bearing capacity of core piles, ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F30/13E02D5/46G06F119/14
CPCG06F30/20G06F30/13E02D5/46G06F2119/14
Inventor 周敏梁坤韩云山王元龙程志张晓双
Owner ZHONGBEI UNIV
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