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1. 发明专利

JPH08143864A MODIFIED CROSS-SECTION STAPLE FIBER FOR REINFORCING SOIL, REINFORCED SOIL USING THE SAME STAPLE FIBER AND EXECUTION OF REINFORCED SOIL 失效
公开(公告)号：JPH08143864A
公开(公告)日：1996-06-04
申请号：JP31131694
申请日：1994-11-22
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , S L S KK , OKUMURA CORP , KUMAGAI GUMI CO LTD , KONOIKE CONST , SANSHIN KENSETSU KOGYO KK , TOYO BOSEKI , HIROSE & CO LTD , MITSUI SEKIKA SANSHI KK , MITSUBISHI CHEM CORP , MITSUBISHI CONSTR CO LTD , TEIJIN LTD
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , FUKUYAMA SHINICHI , HORIUCHI HARUO , NAGASAKA YUJI , OKAMURA YASUHIRO
IPC分类号： E02D3/12 , C09K17/18 , C09K17/20 , C09K17/22 , C09K17/32
摘要： PURPOSE: To obtain a fiber material, readily and uniformly dispersible in soil, efficiently and economically providing reinforcing effects on soil and useful for reinforcing the soil, reinforced soil using the fiber material and a simple method for executing the reinforced soil. CONSTITUTION: This modified cross-section staple fiber for reinforcing soil is a noncrimped staple fiber having 0.5-150 denier single fiber size, 10-200mm fiber length and 1.2-3.0 modification degree of the cross section of the fiber [with the proviso that the modification degree is a ratio D/d of the diameter D of the circumscribed circle in the fiber cross section to the diameter (d) the solid round fiber of the same size]. Furthermore, the reinforced soil uses the staple fiber and the method for executing the reinforced soil is provided.

2. 发明专利

JPH06306834A FLUID EROSION PREVENTIVE METHOD FOR EARTH SURFACE IN CONTACT WITH FLUID 失效
公开(公告)号：JPH06306834A
公开(公告)日：1994-11-01
申请号：JP9816393
申请日：1993-04-23
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , TOYO BOSEKI , KUMAGAI GUMI CO LTD , MITSUI SEKIKA SANSHI KK
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , TAKI EIICHIRO , HORIUCHI HARUO , MORI KUNIO , KONDO MASAHIRO
IPC分类号： E02B3/12
摘要： PURPOSE:To form a plantable riverbank or bank or the like while preventing or reducing erosion of an earth surface by fluid by arranging fiber mixed soil on the earth surface in contact with the fluid. CONSTITUTION:Fiber mixed soil 7 formed by mixing short fiber by 0.1-2weight% to soil is arranged on a surface of earth 1. Even in repair or afteration, another fiber mixed soil 7 is arranged newly on the existing fiber mixed soil 7. Various fibers such as natural or inorganic or metallic fibers having, for example, a theckness of 1-100 denier and a length of about 10-200mm are selected as the short fiber according to its necessity. Even if fluid energy such as a running water flow or a wind is applied to a contact part 20 of such fiber mixed soil, since the short fiber erecting on a surface restrains rolling of a soil particle and reduces the fluid energy, so that erosion and scour can be prevented without generating a wave pattern on a surface of the mixed soil 7.

3. 发明专利

JPH0885929A EMBANKMENT CONSTRUCTING METHOD WITH SACK 失效
公开(公告)号：JPH0885929A
公开(公告)日：1996-04-02
申请号：JP22042194
申请日：1994-09-14
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , KUMAGAI GUMI CO LTD , MITSUI SEKIKA SANSHI KK , TOYO BOSEKI
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , HORIUCHI HARUO , MORI KUNIO , NAGASAWA TAKESHI , KONDO MASAHIRO , TAKI EIICHIRO
IPC分类号： E02B3/04
摘要： PURPOSE: To prevent water damage by forming a meshing sheet having a specific opening width into a sack shape, filling the sacks with short fibers and soil in a specified proportion by weight, and laying them on the surface of an embankment. CONSTITUTION: Sacks 1 are formed from a meshing sheet having an opening width of 0.1-50mm, and a mixture of a soil and short fibers below 5wt.% is formed, stamped, and put fully in each sack. The filled sacks 1 are laid along the slope face of an embankment B, and if necessary, coupled with the embankment B using piles. The oversurfaces of the sacks 1 are covered with soil, and lawn, etc., is implanted. If necessary, a meshing sheet in flat plate shaped is extended to the outside of the sacks and embedded under the ground in the condition spread horizontally so that they 1 are checked from movement by the earth pressure. This allows preventing erosion, soil outflow, crazing at drought, etc., and protecting the landscape of the nature and the ecosystem.

4. 发明专利

JPH0711621A MIXED LIGHTWEIGHT EARTH 失效
公开(公告)号：JPH0711621A
公开(公告)日：1995-01-13
申请号：JP15553593
申请日：1993-06-25
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , KUBOTA CONSTRUCTION CO , DAINIPPON INK & CHEMICALS , NITTOC CONSTRUCTION , NIHON CEMENT , NIPPON HODO , FUJITA CORP , MATSUO KENSETSU KK , MITSUI CONSTR , MITSUBISHI CHEM CORP , KUMAGAI GUMI CO LTD , ASAHI CHEMICAL IND , S L S KK , OSAKA BOSUI KENSETSUSHA KK , KANEGAFUCHI CHEMICAL IND , JSP CORP , SEKISUI PLASTICS
发明人： MIKI HIROSHI , MORI NORIYUKI , SENDA SHOHEI , YAMADA SUMIO , HORIUCHI HARUO
IPC分类号： E02D3/00 , E02D17/18
摘要： PURPOSE:To prevent the generation of weathering or corrosion of fill by mixing small pieces of synthetic resin foam and synthetic fiber having specific thickness with earth at specific ratio respectively. CONSTITUTION:Small pieces of synthetic resin foam with weight lower than earth is mixed with the earth at approximate 1:(0.5-3.0) of vol.% and, at the same time, in order to increase strength, synthetic short fiber having approximate 1DE-50DE of thickness is mixed with the earth at the rate of over approximate 100:0.01 in wt.%. According to the constitution, the synthetic resin is interlocked with the earth and synthetic resin foam mixed therewith to bind them to each other, and the weathering and corrosion of fill can be effectively prevented.

5. 发明专利

JPH06101120A METHOD FOR OPENING SHORT FIBER BUNDLE AND DEVICE THEREFOR 失效
公开(公告)号：JPH06101120A
公开(公告)日：1994-04-12
申请号：JP27120992
申请日：1992-09-14
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , OKUMURA CORP , KUMAGAI GUMI CO LTD , HIROSE & CO LTD , TEIJIN LTD
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , MASUI HITOSHI , HORIUCHI HARUO , MORI KUNIO , NAGASAWA TAKESHI , KUMADA TETSUNORI , OKAMURA YASUHIRO
IPC分类号： B26D1/40 , D01G1/04 , D02J1/18 , E02D3/00
摘要： PURPOSE:To efficiently open bundled yarn into innumerable short fibers. CONSTITUTION:Bundled yarn A is cut into short fiber bundles B every fixed length by a cutting mechanism 3 in an airtight box 2 and the short fiber bundles B are dropped into a flow channel 8 in a column 7 having a small diameter suspended from the bottom of the box 2. On the other hand, a high-speed air flow is supplied from the upper part to the flow channel 8 and the short fiber bundles passing through the flow channel 8 are loosened into a great number of short fibers (b) by the air flow.

6. 发明专利

JPH0691630A PREPARATION METHOD AND DEVICE FOR SHORT FIBER MIXED EARTH AND SAND 失效
公开(公告)号：JPH0691630A
公开(公告)日：1994-04-05
申请号：JP27121092
申请日：1992-09-14
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , OKUMURA CORP , KUMAGAI GUMI CO LTD , HIROSE & CO LTD , TEIJIN LTD
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , MASUI HITOSHI , HORIUCHI HARUO , MORI KUNIO , NAGASAWA TAKESHI , KUMADA TETSUNORI , OKAMURA YASUHIRO
IPC分类号： B28C5/40 , E02F7/00
摘要： PURPOSE:To prepare efficiently short fiber mixed earth and sand in which short fibers are mixed uniformly for reinforcement. CONSTITUTION:A fiber bundle A is cut into short fiber bundles B of given length by a cutting mechanism 3 in an airtight casing 2, and while the short fiber bundles B are dropped into a flow path 8 in a small diameter cylindrical body 7 provided hangingly from the bottom face of the casing 2, high speed air flow is fed from the section above into the flow path 8, and short fiber bundles passing through the flow path 8 are loosened and disentangled to form a number of short fibers (b) by the air flow and fed into a mixer 13 disposed below the flow path 8 quantitatively and continuously. The short fibers (b) and earth and sand C are agitated and mixed together uniformly in the mixer 13.

7. 发明专利

JPH06167026A PROTECTION METHOD FOR SOIL INCLINED SURFACE 失效
公开(公告)号：JPH06167026A
公开(公告)日：1994-06-14
申请号：JP16690592
申请日：1992-06-01
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , TOYO BOSEKI , KUMAGAI GUMI CO LTD
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , TAKI EIICHIRO , HORIUCHI HARUO , MORI KUNIO , NAGASAWA TAKESHI
IPC分类号： E02D17/20
摘要： PURPOSE:To prevent outflow of soil of an inclined surface and also to improve the water holding property and air containing property by mixing at least water absorptive high polymer material in soil for forming the inclined surface. CONSTITUTION:A water absorptive high polymer material is mixed in soil E in an inclined surface forming area A. Water produced by rainfall R is absorbed by the water absorptive high polymer which is swollen, and the stickness is exhibited to hold the peripheral soil particles fast. When a short fiber material is mixed in soil E, the shearing strength can be increased in co-operation with the connecting action between the soil particles. Further, the high polymer material is increased in its volume like a gel, so that the water penetrating into the ground is cut off by the surface layer part. Thus, the outflow of soil due to rainfall can be prevented, and growing conditions of plants can be satisfied to promote the greening.

8. 发明专利

JPH0813472A SCATTERING METHOD FOR FIBER 失效
公开(公告)号：JPH0813472A
公开(公告)日：1996-01-16
申请号：JP14967894
申请日：1994-06-30
申请人： MINI PUBLIC WORKS , DOBOKU KENKYU CENTER , SATO KOGYO , KUMAGAI GUMI CO LTD , DAINIPPON INK & CHEMICALS , HAZAMA GUMI
发明人： MIKI HIROSHI , HAYASHI YOSHIYUKI , SENDA SHOHEI , INADA HIROFUMI , HORIUCHI HARUO , UCHIYAMA MASAMI , KATO TOSHIAKI
IPC分类号： E02D3/12
摘要： PURPOSE:To make uniform the strength of soil, by blowing compressed air in a frother dissolved in a liquid to generate bubbles and adding short fiber thereto and agitating and mixing it and after that, mixing it with soil and dispersing the fiber by the bubbles. CONSTITUTION:Air is blown in a dissolved frother 1 to generate a number of fine bubbles 14 in a bubble generator 3. The air bubbles are mixed with short fiber 13 with 2-10cm in the length of 1-30 denier in the fineness, in an agitator 8. In this case, the short fiber 13 corresponding to the weight as much as 0.2-1% of the dry solid of soil is mixed with the soil. The dispersed fiber 15 with air bubbles mixed by the agitator 8 is scattered from the discharge opening 16 to soil 28 through a hose 27. The short fiber is mixed with the soil 28 by the blades 26 of a stabilizer agitator 21 to prevent short fiber from being entangled and evenly scatter it to the whole. In this way, the equipment is miniaturized and lightened and further, the soil strength can be made uniform.

9. 发明专利

JPH04285208A CONSTRUCTION METHOD FOR UNDERGROUND CONTINUOUS WALL 失效
公开(公告)号：JPH04285208A
公开(公告)日：1992-10-09
申请号：JP7444591
申请日：1991-03-15
申请人： KUMAGAI GUMI CO LTD
发明人： TOYOIZUMI HIDEO , HIROMURA OSAMU , HORIUCHI HARUO
IPC分类号： E02D5/18
摘要： PURPOSE:To avoid the occurrence of poor replacement of slurry and bleeding and to check slurry from penetrating the ground by placing self-hardening slurry in a groove hole formed in the ground, and stirring the same while an accelerating agent is added thereto. CONSTITUTION:The ground 10 is dug to form a groove hole 16 while a stabilizer is filled therein, and a reinforcing member 18 such as an iron member, a reinforcing steel cage, PC plate or the like is built up in the groove hole 16. Self- hardening slurry 20 such as a material made by mixing at least one of clay, dug earth, sand, coal ash and an admixture, water and a solidifying agent is placed in the groove hole 16 to replace the stabilizer with the slurry 20. Subsequently, air is sent through an air compressor 30 and an air pipe 32 to generate air bubbles 28, thereby mixing the slurry 20, The remaining stabilizer is mixed with the slurry 20 and the groove hole 16 is filled with the above mixture to construct an underground continuous wall formed by a solidified material of the slurry which has no remaining stabilizer in the interior and little structural weak point.

10. 发明专利

JPH04194213A GROUND IMPROVEMENT METHOD AND DEVICE THEREOF 失效
公开(公告)号：JPH04194213A
公开(公告)日：1992-07-14
申请号：JP32266490
申请日：1990-11-28
申请人： KUMAGAI GUMI CO LTD
发明人： HISHINUMA NOBORU , HORIUCHI HARUO , NAGASAWA TAKESHI , SAKA HIDEMASA
IPC分类号： E02D3/11
摘要： PURPOSE:To efficiently improve the ground and shorten the construction period by arranging a heating means having a heating body in the recess formed on the ground with banking, further charging sand around the heating means, and supplying electric power to heat the heating body. CONSTITUTION:A recess 14 of prescribed depth penetrating banking 12 banked on the ground is formed. A heating means of long pillar-like lengthy body longer than the depth of the recess 14 and having a heating body extending in lengthwise direction is arranged so as to conform the lengthwise direction with the depth direction of the recess 14, and sand 18 is charged around it. Next, electric power is supplied from a power source 20 to heat the heating body, generated heat is conducted to the sand 18, and water content in the sand 18 is heated and evaporated, Accompanied with the evaporation, water content in the ground 10 around the recess 14 is let flow to the sand 18 in order to evaporate, and hence the ground 10 is dehydrated. Hereby, without generation of pollution-causing substance, ground improvement can be performed with simple construction and in a short period.

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