A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
FLOTATION PREVENTIVE METHOD OF MANHOLE
PROBLEM TO BE SOLVED: To provide a method for preventing flotation of a manhole by fixing a manhole through a support member anchored in the natural ground.SOLUTION: A flotation preventive method of a manhole comprises steps of: forming a vertical groove F by excavating a backfill sediment layer E and the natural ground D around a manhole A buried in the ground in the depth direction; forming a hole 2 penetrating the peripheral wall of the manhole at the position which corresponds to the vertical groove F of the manhole A and which is a predetermined position of the depth direction; disposing a support member 3 with a rear end 3b facing the natural ground D in the vertical groove F while a tip 3a engages with the manhole A through the hole 2 formed in the peripheral wall of the manhole; and filling up the vertical groove F in which the support member 3 is arranged so as to bury the support member.SELECTED DRAWING: Figure 1
【課題】マンホールを地山に定着させた支持部材を介して固定することで浮上を防止する工法を提供する。【解決手段】地中に埋設されているマンホールＡの周囲の埋戻し土砂層Ｅ及び地山Ｄを深さ方向に開削して立溝Ｆを形成する工程と、マンホールＡの立溝Ｆと対応する位置であって、深さ方向の所定位置に該マンホールの周壁を貫通した孔２を形成する工程と、先端３ａをマンホールの周壁に形成した孔２を通して該マンホールＡに係止すると共に後端３ｂを立溝Ｆの地山Ｄに臨ませて支持部材３を配置する工程と、支持部材３を配置した立溝Ｆを埋め戻して該支持部材を埋設する工程と、を含む。【選択図】 図１
FLOTATION PREVENTIVE METHOD OF MANHOLE
PROBLEM TO BE SOLVED: To provide a method for preventing flotation of a manhole by fixing a manhole through a support member anchored in the natural ground.SOLUTION: A flotation preventive method of a manhole comprises steps of: forming a vertical groove F by excavating a backfill sediment layer E and the natural ground D around a manhole A buried in the ground in the depth direction; forming a hole 2 penetrating the peripheral wall of the manhole at the position which corresponds to the vertical groove F of the manhole A and which is a predetermined position of the depth direction; disposing a support member 3 with a rear end 3b facing the natural ground D in the vertical groove F while a tip 3a engages with the manhole A through the hole 2 formed in the peripheral wall of the manhole; and filling up the vertical groove F in which the support member 3 is arranged so as to bury the support member.SELECTED DRAWING: Figure 1
【課題】マンホールを地山に定着させた支持部材を介して固定することで浮上を防止する工法を提供する。【解決手段】地中に埋設されているマンホールＡの周囲の埋戻し土砂層Ｅ及び地山Ｄを深さ方向に開削して立溝Ｆを形成する工程と、マンホールＡの立溝Ｆと対応する位置であって、深さ方向の所定位置に該マンホールの周壁を貫通した孔２を形成する工程と、先端３ａをマンホールの周壁に形成した孔２を通して該マンホールＡに係止すると共に後端３ｂを立溝Ｆの地山Ｄに臨ませて支持部材３を配置する工程と、支持部材３を配置した立溝Ｆを埋め戻して該支持部材を埋設する工程と、を含む。【選択図】 図１
FLOTATION PREVENTIVE METHOD OF MANHOLE
マンホールの浮上防止工法
OOKA SHINKICHI (author) / KITAJIMA HISASHI (author) / CHO MITSUYOSHI (author)
2016-12-28
Patent
Electronic Resource
Japanese
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