Frozen soil slope model making and frozen soil slope model directional blasting test device and test method
A technology of directional blasting and manufacturing method is applied in the field of frozen soil slope model making and frozen soil slope model directional blasting test device, visualization of frozen soil slope model making and frozen soil slope model directional blasting test device, which can solve the problem. Unable to prepare saturated transparent frozen soil samples, etc.
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Embodiment 1
[0046] A kind of permafrost slope model making method, it comprises the following steps:
[0047] ⑴Material preparation: First, make a mold for simulating a natural slope model according to the test requirements, and then calculate and determine the dosage of fluoropolymer, granular ice and colorless pore liquid according to the test conditions and the size of the mold; the fluoropolymer is the particle size 0.25㎜~2.0㎜ particles, cleaning impurities and drying, the particles are irregular shape, TeflonAF1600 produced by DuPont, USA, with a refractive index of 1.31 and a density of 2.1g / ㎝ 3 ~2.3g / ㎝ 3 ; The granular ice is crushed from a frozen whole piece of ice, and its particle size is 0.1 mm to 0.5 mm; the colorless pore liquid is water;
[0048] In step (1) of the present invention, the fluorine-containing polymer particles of 0.25㎜≤particle diameter<0.5㎜ are 10%~50%; those of 0.5㎜≤particle diameter<1.0㎜ are 10%~50%, and 1.0㎜≤ 10% to 50% for particle size <1.5㎜, 10% to 50...
Embodiment 2
[0091] In the preparation of permafrost slope model 2, the density is 2.1g / ㎝ 3 fluorine-containing polymer particles, 20% for fluorine-containing polymer particles 0.25㎜≤particle size3 , severe 18kN / m 3 , compactness 30%; mechanical properties: internal friction angle 30°, elastic modulus 10MPa, Poisson's ratio 0.35.
[0092] The rest are the same as embodiment 1.
Embodiment 3
[0094] A kind of permafrost slope model making method, it comprises the following steps:
[0095] ⑴Material preparation: First, make a mold for simulating a natural slope model according to the test requirements, and then calculate and determine the dosage of fluoropolymer, granular ice and colorless pore liquid according to the test conditions and the size of the mold; the fluoropolymer is the particle size Particles ≤0.074㎜, cleaned of impurities and dried, the particles are irregular in shape, TeflonAF1600 produced by DuPont, USA, with a refractive index of 1.31 and a density of 2.1g / ㎝ 3 ~2.3g / ㎝ 3 ; The granular ice is crushed from frozen whole ice, and its particle size is ≤0.074㎜; the colorless pore liquid is water;
[0096] In order not to affect the refractive index, the water described in the present invention is pure water.
[0097] The test conditions of this embodiment are the same as in Example 1 with the sample size and calculation method in the mold.
[0098] ...
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