Abstract:
A bearing pier foundation (8) for compacting soil, that includes a plug (10) extending along the longitudinal axis (11) having a first section (12) and a second section (14). The first section (12) is adapted to receive a pushing force for pushing the plug (10) into the soil and the second section (14) is adapted to rest on the soil to be compacted. A plane (40), which is perpendicular to the longitudinal axis (11), passes through the second section (14). The second section (14) includes a first part (100) and a second part (102). The first part (100) has an inner edge (108) and an outer edge (106) intersecting the plane (40). The second part (102) has an outer edge (114) attached to the first part inner edge (108). The second part (102) extends downwardly from the plane (40) and has a tapering segment (112) extending along the longitudinal axis (11). The bearing pier foundation can be used in combination with a hydraulic setting tool (210). Also disclosed is a method for installing the plug (10) and a sheath (300) into the soil.
Abstract:
One aspect of the invention provides a structure including one or more strut tubes adapted and configured to receive and hold a granular material. The one or more strut tubes further include compression means for applying at least compression to the granular material after loading. Another aspect of the invention provides a method of erecting a structure. The method includes: inflating one or more strut tubes with a fluid; displacing the fluid with granular material; and compressing the granular material.
Abstract:
The form for a concrete footing (10) is a mold for receiving concrete for footings on construction projects. The form has a housing (12), and a plurality of horizontal support members (16) that extend across the hollow interior of the housing. The form may be manufactured from plastic, cardboard, concrete or other materials. Vertical tubes (14) extend from the top and bottom and are hollow to allow for in situ soil sampling after the footing has been set in the excavation.
Abstract:
A method and apparatus for improving the stiffness of soil (10) by forming an opening (12) in the ground, inserting an expandable member (14, 60-66), and distending the expandable member (14, 60-66).
Abstract:
본 발명은 단면의 크기가 하부로 점증적으로 증가되는 원추형 또는 반구형의 보강재를 구성하여 전단력에 저항하는 범위가 넓게 확장되도록 함으로써 펀칭 전단이 방지되는 펀칭 전단방지용 보강재 및 이를 이용한 슬래브와 기둥 그리고 기둥과 확대 기초의 접합부 시공 방법을 제공한다. 본 발명의 펀칭 전단방지용 보강재에 따르면, 소정의 두께를 갖는 원형의 상부 원판과; 상부 원판의 둘레로부터 연장되어 상부에서 하부로 일정 높이의 구간에 단면적을 점차 확대시키면서 벌어져 있는 스커트부와; 상기 스커트부의 내부에 콘크리트가 채워질 수 있도록 하부로 개방된 콘크리트 충전실이 포함되어 있는 것을 특징으로 한다.
Abstract:
Support members for heliostats (or other components installed in a field) can be hollow and thin- walled, for example, to reduce construction and/or material costs. However, such support members may be relatively fragile and susceptible to buckling or other damage when driven into relatively rocky and/or hard-packed soil using pile-driving. To avoid damaging the support members, the soil may be pre-conditioned to loosen the soil prior to insertion of the support member therein. An auger can drill a hole in the soil and then be reversed such that soil remains in and/or is subsequently re-introduced into the hole after removal of the auger, thereby leaving a substantially loosened column of soil in the hole. Vibration hammering can cause temporary liquefaction of the soil around the support member to insert the support member into the column of soil while reducing the potential for damage to the support member.
Abstract:
Method for the creation of a foundation pile (1), including the operational stages of making a hole (4) in the soil (3) with a development axis and its own cross section, compacting the ground (3) around the hole (4) by enlarging the cross section of the hole (4) itself, and pouring at least one solidifiable filler into the hole (4) and leaving the filler to cure to obtain a column structure defining the foundation pile (1). hi particular, the compacting stage occurs without the removal of material and includes the compression of the ground (3) in outgoing radial directions compared to the development axis of the hole (4).
Abstract:
A method and apparatus for producing short aggregate piers in situ in the ground including the steps of forming a cavity in the ground, compacting the soil in the vicinity of a bottom portion of the cavity to prestress and densify the soil beneath the cavity, adding a layer of loose aggregate to partially fill the cavity, compacting the layer of loose aggregate (37) with an implement (10) adapted to reduce the height of the layer and adapted to prestress and densify the soil laterally by forcing some of the aggregate laterally into the sides of the cavity and thereby also enlarging the cavity in the vicinity of the layer, and repeating the steps of adding aggregate and compacting aggregate until the cavity is filled substantially completely with compacted aggregate or is filled to the desired elevation. The resulting pier has a bulging, undulating outer surface which the surrounding prestressed soil is better able to support.
Abstract:
중공블록을 이용한 그물망 기초공법이 개시된다. 보강하고자 하는 지반 상부를 정지하는 단계; 폐합된 측벽이 일면에서 타면으로 관통하는 중공부를 구획하는 중공블록의 상기 일면이 정지된 상기 지반 상부에 접하도록 복수의 상기 중공블록을 서로 인접하여 배치하는 단계; 상기 중공부에 쇄석 및 사질토 중 하나 이상을 포함하는 충전재로 충전하는 단계를 포함하는 중공블록을 이용한 그물망 기초공법은, 상부구조물을 지탱하기에 지지력이 충분하지 않은 지반에 말뚝 등의 깊은 기초를 형성하지 않고 지반을 보강하여 상부구조물을 지지하도록 할 수 있다.
Abstract:
The form for a concrete footing (10) is a mold for receiving concrete for footings on construction projects. The form has a housing (12), and a plurality of horizontal support members (16) that extend across the hollow interior of the housing. The form may be manufactured from plastic, cardboard, concrete or other materials. Vertical tubes (14) extend from the top and bottom and are hollow to allow for in situ soil sampling after the footing has been set in the excavation.