Design of beds and foundations for rural buildings framed with three-hinge mill bents

Conclusions 1. Until more modern methods of computation are developed, it is recommended that the bearing capacity of beds for rigid rectangular foundations of agricultural buildings framed from three-hinge mill bents with a relative embedment 0.5h/B1 and angles of incline of the resultant of external loads 20<<45° from the vertical be determined by the method outlined in ICR 0.1–76. The method described in SNiP II-15-74 should be used when the relative embedment of the lower surface is less than 0.5 and the angles <.2. It is recommended that the long side of rectangular foundations be placed in the direction of the shearing force.3. As has also been noted by other investigators, determination of the effective width of a foundation in accordance with the Gersevanov method leads to excessive safety factors in estimating the bearing capacity of a foundation bed. The need has arisen to develop more accurate procedures that take into account the configuration of the lower surface of the foundation, the relative embedment of the lower surface, and other factors.Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 6, pp. 14–16, November–December, 1982.     

Experience with jet technology for strengthening foundations of old buildings

A method is proposed for the strengthening of strip foundations; it is characterized by use of jet technology and the creation of continuous walls inclined one to the other beneath the lower surfaces of the foundations. The effectiveness of the method is confirm by geomechanical investigations and geodetic observations. __________ Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, pp. 28–32, May–June, 2007.     

Experience with the installation of pile foundations for the reconstruction of existing buildings

Experience with the installation of foundations formed from piles cast in predrilled holes 250 mm in diameter with expanded compacted bases made of a dry concrete mix, and also 300 mm in diameter with expanded bases formed from tamped crushed stone is described. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 1, pp. 21–25, January–February, 1999.     

Transfer of vibrations from machine foundations to adjacent foundations supporting buildings and structures

Results of measurements of vibrations propagating through the ground from various machine foundations subject to harmonic and pulsed sources of dynamic effects are codified. Results of the measurements are compared with recommendations set forth in the Construction Rules and Regulations regarding analysis of ground vibrations.     

Construction of pile foundations for instrudial farm buildings

Conclusions 1. For industrial farm buildings of column-beam construction with full frame the most promising foundations are pile-posts of the forced-sinking and the bored types, and for industrial buildings with partial frame, residences, and cultural buildings of up to three stories the following types of foundations offer advantages: short, drilled-bored soil-concrete or cyclopean concrete 0.5–0.8 m in diameter; driven tapered footings 1.5-2-m-long; and prestressed piles without transverse reinforcement.2. It is necessary to develop methods for calculating driven and bored piles with lengths of 1.5–3 m as well as pile-posts working under the combined effect of vertical and horizontal loads, since the lack of such methods hinders the further introduction of pile foundations in farm construction.Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 4, pp. 12–15, July–August, 1968.     

Analysis of anti-karst foundations for buildings and structures

Problems associated with the design of foundations of buildings and structures in karst-prone regions are examined. Basic analytical positions are formulated for the design of these foundations. Methods are proposed for evaluation of the deformation characteristics of the bed in designing foundations subject to the formation of a karst-induced collapse. __________ Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 1, pp. 20–24, January–February, 2008.     

Installation of adjustable foundations for buildings to protect them from nonuniform deformations

Questions concerning the purpose and installation of adjustable foundations, which are installed during either the building's occupancy, or construction, and make it possible to level the building with minimal expenditures, are examined. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 2, pp. 19–22, March–April, 2009.     

既有建筑物地基不均匀沉降注浆施工工法

结合工程实际情况,经多方案比选确定了双液注浆施工方案,阐述了既有建筑物地基不均匀沉降施工工法的特点、适用范围及工艺原理,详细归纳了注浆技术要求及质量控制要点,工程施工应用效果良好。     

Certain characteristic features of the design of foundations for theater-exhibition buildings

State Institute for the Projection of Theater and Show Facilities. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 5, pp. 5–7, September–October, 1988.     

Assigment of the design resistance of bed soils for foundations of buildings subject to reconstruction

The method of determining the design resistance R_con of a consolidated (under the pressure of the foundations) bed soil is refined by taking into account the effect of soil compression during the building's service life and experimental data on the change in the properties of the soils lying beneath the lower surface of the foundations. It is recommended that the method be used in designing the foundations of shallow reconstructed and renovated buildings on silty-clayey soils. Translated from Osnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, pp. 6–10, May–June, 2000.     

提高房屋建筑施工质量的探讨

从分析房屋建筑施工质量控制的内涵出发,着重讨论了施工阶段的施工项目质量控制问题,分别对材料、方案、工序等因素作了详细的论述,并举例说明了材料检测及施工方案的质量控制。     

高层建筑地基基础概念设计的思考

基于高层建筑箱、筏、桩筏基础变形、反力等实测资料的分析指出,按传统理念设计的箱基、筏基、桩筏基础有两个缺陷:一是呈现明显的碟形沉降引起上部结构的较大次应力;二是基底马鞍形反力分布导致基础板或承台冲剪力和弯矩显著增大。为使差异沉降和箱、筏承台的内力减至最小并改善上部结构受力性状,提出变刚度调平概念设计。对于框筒、框剪结构,应强化核心筒区的桩土刚度(调整桩长、桩径或桩数),相对弱化外围刚度;对于主裙连体建筑,应强化主体,弱化裙房(采用天然地基、复合地基和疏短桩基);对于箱、筏基础,可局部强化核心筒区(采用桩基或刚性桩复合地基)。对于上述变刚度调平概念设计,进行上部结构—基础—桩—土共同作用分析,进一步优化布桩和承台配筋。通过大比例现场模型试验对上述优化设计理念进行了验证,并应用于10余项工程,取得了良好的技术经济效果。     

关于民用建筑建材消耗量获取的途径

准确获取民用建筑建材消耗量对于研究民用建筑“四节一环保”至关重要。本文就民用建筑建材消耗量从不同渠道获取的可行性进行探讨,分析发现现有供给侧所提供的建材产量、需求侧所提供的建材消耗量均不能准确给出民用建筑建材消耗量。因此,从民用建筑设计入手,通过推算获取单位民用建筑面积建材消耗量,并利用2009-2016年的建筑业企业房屋竣工面积和主要建筑材料产量的关系进行验算,推算结果与验证结果基本一致,可代表我国民用建筑的总体消耗量水平。依据相关数据分析,为未来更好地获取建材消耗量提出了建议。