Operation highway soft soil roadbed bridgehead bump replacment light material treatment method

Abstract

An operation highway soft soil roadbed bridgehead bump replacment light material treatment method comprises that following step: firstly calculating the weight of the original roadbed excavated in half of the roadbed; and secondly calculating the weight of the original roadbed excavated in half of the roadbed; Then calculating the weight of the replacement light material; 2, calculate that weightdifference between the two; Making safety measures and marking for half roadbed passing through half roadbed excavation; 5, excavating half of that roadbed E m depth and A2m length, and supporting theroadway to excavate the side of the roadbed; 6, leveling and excavate half of that bottom of the roadbed, and laying 2cm thick A2m long bamboo steel plate; EPS and other light material are laid on that bamboo steel plate in a trapezoidal shape, and then laying a bamboo steel plate with a thickness of 2cm and a length of A5m; making Pavement on bamboo steel plate in accordance with the requirements of the specifications, and opening half of the roadbed traffic; Completing the other half of the roadbed according to the cycle and open all roadbed traffic. The invention adopts the treatment method of replacing the light material with the bump vehicle at the bridge head of the operating highway soft soil roadbed, which has the advantages of convenient construction, economic and environmental protection, and fundamentally solves the bump vehicle at the bridge head of the operating highway soft soil roadbed.

Description

technical field [0001] The invention belongs to the field of highway construction methods, and relates to a treatment method for jumping vehicles and replacing light materials at bridgeheads of soft soil subgrades of operating highways. Background technique [0002] Vehicle jumping at the bridge head is a phenomenon that vehicles jump when passing due to the differential settlement at the road bridge head and expansion joints (bridge head approach road) or the damage of expansion joints, resulting in steps on the longitudinal slope of the road surface. Different degrees of settlement fractures appear on the road surface at the backfill of the abutment (the settlement value is generally 10-30cm, and some even exceed 60cm), which causes jumps and impacts when vehicles pass, thereby causing additional impact loads on bridges and roads, making drivers And passengers feel bumpy and uncomfortable, and even cause the vehicle to decelerate significantly, which can lead to traffic ac...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that the current method for solving the car jumping at the bridge head of the soft soil subgrade of the operating road tends to ignore the relationship between the weight of the roadbed and the relative stability of the soft soil foundation, and lacks the macro quantitative control method, and provides a light weight method for the bridge head jumping of the soft soil subgrade of the operating road. High-quality material processing method to ensure the stability of the road connected to the bridge head of the highway, and at the same time has the advantages of convenient construction, economy and environmental protection

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