Method for measuring and calculating natural volume weight of giant-grain soil
A soil bulk density and bulk density technology, which is applied in the field of measuring and calculating the natural bulk density of giant-grained soils, can solve problems such as large errors, single measurement results, and inaccuracy, and achieve good engineering requirements, meet engineering needs, and have strong operability
Active Publication Date: 2021-08-13
POWERCHINA CHENGDU ENG
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Problems solved by technology
[0005] The invention provides a method for measuring and calculating the natural bulk density of huge-grained soil, which solves the problems that the existing calculation results of the natural bulk density of soil are single, large errors, inaccurate, and difficult to meet the fine analysis of complex slope stability
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[0022] The present invention will be further described below in conjunction with drawings and embodiments.
[0023] The method for measuring and calculating the natural bulk density of giant-grained soil of the present invention comprises the following steps:
[0024] S1. Determine the measurement range 1 where the natural bulk density needs to be measured, arrange n exploration points in the measurement range 1 and carry out exploration respectively, where n is a positive integer. The measurement range 1 is the distribution range of giant-grained soils, and the exploration methods are carried out according to the geological conditions according to the existing methods, including flat holes, boreholes, shafts, pits, trenches, etc. For example, see figure 1 with figure 2 , a deposit is giant-grained soil. According to the surface geological survey data, it is considered that the deposit is thick, and exploration drilling must be carried out. In order to find out the distrib...
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Abstract
The invention discloses a method for measuring and calculating the natural volume weight of giant-grain soil, relates to the field of geological exploration, and solves the problems that the existing measurement and calculation result of the natural volume weight of a soil body is single and inaccurate, and the requirement for stable analysis and calculation of a complex slope is difficult to meet. According to the technical scheme, the method for measuring and calculating the natural volume weight of the giant-grained soil comprises the following steps: firstly, determining a measuring and calculating range,arranging exploration points in the measuring and calculating range, and exploration is conducted respectively; secondly, carrying out exploration point partition on the measurement and calculation range, determining the proportion of giant grains in each exploration point partition, sampling and testing the volume weight; thirdly, calculating the soil volume weight of each exploration point subarea, and then calculating the average soil volume weight of the measurement and calculation range; and finally, dividing the measurement and calculation range into volume-weight subareas according to the content of huge particles revealed by exploration in combination with the exploration point subareas and the topographic and geomorphic characteristics, and calculating the soil volume-weight of each volume-weight subarea. The volume weight of the soil body obtained through calculation is closer to the natural volume weight of the slope, and the volume weight of the soil body in the volume weight subareas is suitable for stability analysis of the complex slope.
Description
technical field [0001] The invention relates to the field of geological exploration, in particular to a method for measuring and calculating the natural bulk density of giant-grained soil. Background technique [0002] The natural bulk density of soil is the weight per unit volume in its natural state. The natural bulk density is a very important physical parameter in the analysis and calculation of soil slope stability, and the value of the natural bulk density has a close relationship with the calculation results of the stability analysis. According to the particle group division of "Engineering Classification Standards for Soil" (GB / T50145-2007), giant particles refer to boulders (block stones) with a particle size d>200mm, or pebbles (crushed stones) with a particle size of 60<d≤200mmd , and according to the relative content of different grain groups in the soil, it can be divided into fine-grained soil, coarse-grained soil and macro-grained soil. Giant-grained s...
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IPC IPC(8): G06F17/10G01C11/00G01N1/08G01N33/24
CPCG06F17/10G01N33/24G01C11/00G01N1/08
Inventor 魏星灿肖华波马金根杨静熙廖明亮吴章雷张景顺刘思丁
Owner POWERCHINA CHENGDU ENG