Foundation pit supporting structure and construction method thereof
A foundation pit support and support structure technology, which is applied in foundation structure engineering, excavation, construction, etc., can solve the problem of low material utilization rate, achieve high material utilization rate, strong anti-overturning ability of support, and fast construction speed Effect
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[0078] As a specific implementation of this embodiment, it specifically includes:
[0079] 1) According to the soil parameters provided by the geological prospecting report, combined with the depth of the foundation pit, considering the influence of various factors such as precipitation, determine the steel sheet pile 10, the supporting waist beam, the internal supporting structure 23 and the length control device 24 with a force-increasing function parameter. In the embodiment, the transmission gear set 242 power gear 24210 teeth Z 1 =20, modulus m 1 =2.5, the number of teeth of the steering gear 24211 Z 2 =60, modulus m 2 =2.5, transmission ratio i 1 =3; Axial rotation gear 24213 teeth number Z 1 =2, modulus m 1 =3, 24214 teeth Z 2 =100, modulus m 2 =3, transmission ratio i 2 =50; the number of teeth Z of the power transmission gear 24215, the plane transition gear 24218 and the hydraulic lever return power gear 24219 are all 32, and the modulus m is 7; the number of teeth Z of ...
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