Research Of Daye Lingxiang Spirit Township Iron Ore Melting Agent Project's Field Area Side Slope Reinforcement Earth Retaining Wall Stability Analyses And Construction Controls

In recent years, with the national increase in infrastructure investment, after the many large-scale excavation of the high slope or landslide of new projects have been completed and the site or building (structure) impact the formation of larger and constraints. In this paper, examples of the works of Hope Township, Daye iron ore project field slope flux of up to 15m, slope for the project spoil soil, slag, such as back fill, slope leading edge storage products from only 8 ~ 10m away, and the slope by atmospheric precipitation and water erosion, and local areas have cracks caused by the storage of the finished product safety. If the traditional, conventional forms of governance of the support (anti-slide pile, gravity retaining wall, etc.), not only for the Su-fill slopes to deal with the upper part of the profound effect of poor governance and high costs, the overall effect was not obvious. Based on the engineering geological conditions of slope stability analysis, comparison and selection of different treatment programs, access to a large number of reinforced earth technology on literature and information engineering example, the use of reinforced earth retaining wall technology for control of the slope, the use of additional reinforced earth retaining wall slope field treatment not only saves the cost of governance, but also shorten the construction period, the effect of good governance.This article through carries on to the reinforcement earth's reinforcement material key elaborated that links to this project reality, acts as circumstances permit to use the compound earth Gongbu + cohesive soil to take the reinforcement material, the reinforcement earth retaining wall selects the flexible structure. Through the consult massive reinforcement earth technology's literature material, summarizes the reinforcement earth the principle, the design method, the testing method and the massive scholars to the reinforcement earth technology research results, and unifies the melting agent project field area side slope the engineering geology condition, selects the quite mature reinforcement earth retaining wall design method (limit zero-method) to carry on the design, the element earth fill is excessively thick easily in view of the side slope on to have the oversized subsidence, the differential settlement question, carries on the ground treatment with the granulated substance stone marker to it, solves the element earth fill subsidence oversized problem. The field area side slope reaches as high as 15m, the retaining wall, if uses a forming, the construction not only has the difficulty, the security, the overall stability is not high; But uses the third-level retaining wall form, separates each level of retaining walls, although the partial stability reduces, but the overall stability enhances, and constructs easily to operate, safe can also guarantee. When design, according to the national related standard, the regulations, in computation reinforcement earth retaining wall's each item of link, checking calculation retaining wall's, the exterior stability, through the computed result adjustment design's in partial soil and rock mechanics parameter, enables the reinforcement earth retaining wall design to achieve the most superior effect strictly.In order to confirm the reinforcement earth retaining wall in the mine high side slope government rationality, this article in construction control in key solution construction distortion, subsidence and compactness control, links and so on drainage system establishment, through a series of measure control (e.g., is returning to earth fill to foresee accurately joins certain proportion quick-lime, machinery hang to enhance padding with manual hang union compactness, reclamation double sandbag control retaining wall slope and distortion, establishment draining water channel and so on), guaranteed that the reinforcement earth retaining wall achieves the design requirements and the expectation effect. In the design, the construction, through the research, summarizes the following achievement:(1) the Daye Lingxiang spirit township iron ore melting agent project two issue of field area side slope government uses the reinforcement earth technology, the earthwork composition material may choose compound earth Gongbu or the earthwork grill, the padding selects in the field area existing fourth is as before models in hardly the shape the pleistocene clay;(2) uses when the limiting equilibrium theory carries on the reinforcement earth engineering design, the computation, may in the limiting equilibrium method through adjustment soil body shearing strength target C andφcomes the influence which the indirect ref lection reinforcement belt distorts ;(3) each time the muscle material lays down, the roller compaction not to be able to be higher than 0.3m, interpolates the certain proportion in the padding the quick-time composition"the concrete cement", can enhance compactness effectively; The mangle + artificial frog rammer combination use, can guarantee the mangle cannot the roller compaction arrive the region and nearby the wall the 1.5m scope's reinforcement earth-pressure solidity achieves the design requiremen ts ;(4) the earthwork cloth shop supposes, lays down, the roller compaction padding as far as possible within 8 hours, avoids earth Gongbu excessively shining the ultraviolet ray to get older expires, if cannot seal up the wall surface promptly, uses against ultraviolet ray to obstruct the cloth mask, prevents the wall surface to wrap the diffraction the earthwork cotton clothing ultraviolet radiation to get older; Earth Gongbu defers certainly to the design length to lay down, wraps the diffraction length suitably m any not suitable few, does not remain as far as possible wraps the slit ;(5) controls the wall surface slope and the distortion, may select the double sandbag reclamation method;(6) when designs has the base foundation against in-depth slipping, the foundation spot suitably uses the steel bar tong to construct a formation, enhances the foundation integrity, enhances anti-s lides ;(7) constructs period, draining water,the truncation aqueous system to consummate promptly, not only guarantee padding quality, also guaranteed that constructs the good reinforcement earth retaining wall to be able to play the best role.