Suction cylinder penetration resistance calculation method
A resistance calculation and suction cylinder technology, which is applied in design optimization/simulation, building, infrastructure testing, etc., can solve problems such as the lack of a clear description of the value method and the uncertainty of the calculation results of the penetration resistance, so as to improve the reliability. Effect
Pending Publication Date: 2022-07-15
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD +1
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Problems solved by technology
[0003] The calculation of the penetration resistance of the suction cylinder refers to the existing DNVGL-RP-C212 specification, but the existing specification does not clearly explain the value method of the settlement resistance coefficient of the clay-sand mixed soil layer, resulting in There are large uncertainties in the calculation results of the penetration resistance of the suction cylinder
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[0091] In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0092] The embodiment of the present application provides a method for calculating the penetration resistance of a suction cylinder, which is suitable for the calculation of the penetration resistance of a suction cylinder when it sinks in a clay-sand mixed soil layer, including the calculation of the test results of the pore pressure ...
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The invention relates to a suction tube penetration resistance calculation method, which relates to the technical field of suction tube foundation construction, and comprises the following steps: calculating a clay content index of a clay-sand mixed soil layer by using a test structure of a pore pressure static penetration test; and according to the clay content index, calculating to obtain a side resistance coefficient upper limit value, a side resistance coefficient lower limit value, an end resistance coefficient upper limit value and an end resistance coefficient lower limit value of the suction cylinder, and based on the resistance coefficients, calculating the first penetration resistance by using a formula. According to the invention, a set of suction cylinder penetration resistance calculation method for the clay-sand mixed soil layer is established, and the quantitative relationship between the clay content index of the clay-sand mixed soil layer and penetration resistance coefficients (including an end resistance coefficient and a side resistance coefficient) is defined; the problem that the calculation parameters of the penetration resistance of the suction cylinder in the clay-sand mixed soil layer are not clear in the existing specifications is solved, and the accuracy of the calculation result of the penetration resistance is improved.
Description
technical field [0001] The application relates to the technical field of suction cylinder foundation construction, and in particular, to a method for calculating the penetration resistance of a suction cylinder when the suction cylinder sinks in a clay-sand mixed soil layer. Background technique [0002] At present, the suction cylinder foundation has become a popular foundation form for offshore wind turbines, and the sinking resistance is the premise of determining the size of the suction cylinder foundation in the design stage and controlling the sinking negative pressure value in the sinking stage. [0003] To calculate the subsidence resistance of the suction cylinder, refer to the existing DNVGL-RP-C212 specification. However, the existing specification does not specify the method for the value of the subsidence resistance coefficient of the clay-sand mixed soil layer. There is a large uncertainty in the calculation results of the sinking resistance of the suction cyli...
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IPC IPC(8): G06F30/13G06F30/20E02D33/00E02D27/42E02D27/44E02D27/52
CPCG06F30/13G06F30/20E02D33/00E02D27/425E02D27/44E02D27/525
Inventor 马远刚刘彦峰黄锐王艳芬何成园严华王翔高天李鸿猷严晗
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD