Method for determining blasting demolition order of deep foundation pit support beams
A technology for dismantling sequence and deep foundation pits, applied in excavation, infrastructure engineering, special data processing applications, etc., can solve problems such as life hazards for construction workers, tensile damage of support beams, accidents caused, etc., to eliminate safety hazards and create creative Strong and safe effect
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Embodiment 1
[0060] A method for determining the blasting demolition sequence of support beams in deep foundation pits. The method for determining the blasting demolition sequence described in this embodiment is:
[0061] Step 1. Partition
[0062] 1.1. According to the shape of the deep foundation pit support beam, the deep foundation pit support beam is divided into figure 1 The 6 regions shown.
[0063] 1.2. The number of supporting beams in each area divided in step 1.1 is less than 100, such as figure 1 As shown, the divided areas are numbered.
[0064] 1.3. Use ABAQUS finite element software to establish the finite element model of the deep foundation pit support beam, and determine the area N with the largest average pressure on the deep foundation pit support beam in all areas M These are the two areas V and VI in the middle, and the areas V and VI are at the end of the blasting demolition sequence, and are recorded as the last demolished area N M1 and N M2 .
[0065] Step 2...
Embodiment 2
[0117] A method for determining the blasting demolition sequence of support beams in deep foundation pits. The method for determining the blasting demolition sequence described in this embodiment is:
[0118] Step 1. Partition
[0119] 1.1. According to the shape of the deep foundation pit support beam, the deep foundation pit support beam is divided into image 3 The 6 regions shown.
[0120] 1.2. The number of supporting beams in each area divided in step 1.1 is less than 100, such as image 3 As shown, the divided areas are numbered.
[0121] 1.3. Use ANSYS finite element software to establish the finite element model of the deep foundation pit support beam, and determine the area N with the largest average pressure on the support beam in all areas M It is area III, and the area III is at the end of the sequence of blasting demolition, recorded as the last area N to be demolished M .
[0122] Step 2. Determine the ultimate compressive bearing capacity N of the positiv...
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