建筑专业毕业设计外文翻译12(6)

tilt, collapse, destruction, crack, seepage, water leakage, poor rigidity, strength is insufficient, section size is accurate, however, investigate its reason, can be summarized as follows:

( 1) against the building program. If not through feasibility argumentation, make investigation on decided yet; not clear engineering geology, hydrology geology brash start; undocumented design; without any modifications to the design, construction; not according to the drawings; the completion of the project is to test running, without acceptance on delivery of some phenomenon, cause many project save the serious hidden danger, house collapse accidents have also occurred. Engineering geological investigation of reason ( 2 ). Not serious geological investigation, provide geological data, data error. Geological exploration, borehole spacing is too big, can not fully reflect the actual situation foundation, such as when the bedrock surface fluctuation is large, soft soil layer thickness is also very big; geological exploration drilling depth is not enough, did not find underground soft soil, landslide, grave, hole formation; geological survey report in detail, such as inaccurate, will lead to the error based scheme, caused by the uneven settlement of foundation, instability, the upper structure and wall crack, damage, collapse.

( 3) without reinforcement treatment of foundation. On the weak soil, dredger fill, miscellaneous soil, collapsible loess, expansive soil, rock outcropping, lava, soil hole uneven foundation reinforcement treatment or not handled properly, that led to the great cause of quality problems. According to different characteristics of foundation engineering, foundation treatment should be in accordance with the superstructure and combination, make its work principle, from the foundation treatment measures, design, structural measures, waterproof measures, construction measures considering management.

( 4 ) design calculation problem. Inadequate design, structure unreasonable, the calculation sketch is not correct, computational load is too small, internal force analysis is incorrect, settlement joint and the expansion joint is arranged properly, the overhanging structure without overturning inspection, are induced by the quality problems. Such as a retaining wall engineering design without a clear understanding of the engineering geological conditions, construction and not on site verification, coupled with the construction team in the foundation excavation of the site geological conditions failed to timely feedback to the design staff, therefore, although the upper structure design, the construction of good quality, but the basic design is not reasonable, so that the use of design value of load has not yet reached the half, retaining wall appeared to slip and fall. Another example of a silo cracking accident, but also because design personnel negligence, in the pilot when Jian Bi crack, cause construction completion can not meet the basic requirements for the use of.