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Patent Searching and Data


Matches 401 - 450 out of 2,089

Document Document Title
JP2008127892
To provide a construction method of an underground structure reducing the amount of cement milk mixed in the ground, to a required minimum.At least part of soil cement 13 constituting the underground structure 10 is constructed by (A) dr...  
JP2008127901
To provide a method of constructing an underground structure, in which the amount of cement milk mixed into the ground can be reduced to a necessary minimum amount, in order to construct the same at a low cost.The method of constructing ...  
JP2008121185
To provide equipment and a method for computing a safety factor of a surface failure of a slope, which enable a groundwater level of a surface layer to be obtained with accuracy, and which make the accuracy of the safety factor high.The ...  
JP2008115685
To enable accurate determination of a boundary layer between a permeable layer and an impermeable layer where a landslide is apt to take place.When a screw point 21 thrusted into the ground at a right angle starts penetrating, and when t...  
JP2008115617
To provide a quality confirmation method for improved ground and quality confirmation instrument, accurately and simply confirming the mixture condition of soil and solidifying material in a construction site of a surface layer ground im...  
JP2008111286
To provide a partial hitting adjusting device capable of preventing damage to a pile body, by preventing generation of excessive compressive strain in one side surface part of the pile body by partial hitting of a pile head.This pile hea...  
JP2008107252
To simply determine whether or not an uneven stratification structure is owing to consolidation settlement.This geologic structure evaluation method 1 comprises: a step S1 for calculating a boundary-face elevation difference hB and a str...  
JP2008101415
To provide a collecting device for an unsolidified specimen capable of collecting the unsolidified specimen from an unsolidified specimen layer simultaneously at a plurality of collecting positions in the depth direction.A first connecti...  
JP2008096148
To provide a loading device for a pile used to measure a load acting on the pile even where the pile is stricken at its inner part.This loading device 2 for a pile is used to strike a steel pipe pile 1 by its free fall. This device 2 inc...  
JP2008095502
To provide a pile hole drilling method and a foundation pile constructing method which use a proper amount of a drilling liquid, cement milk, etc., under automatic control in correspondence to the strength of the nature of soil to enable...  
JP2008088662
To provide a percussive penetration testing apparatus which eases an impact thereof at the time of raising a hammer, and prevents component parts from being worn out.The percussive penetration testing device is formed of: the hammer 44 o...  
JP2008088640
To solve the problem that the natural ground can be hardly reproduced due to a change in properties of the ground, because material particles are crushed on the ground since a mechanical force greatly acts among the ground material parti...  
JP2008069860
To provide a channel change-over valve controlling water flow of a plurality of systems by delivery/drain of water and not having an on/off trouble due to interruption of electricity supply or the like and a problem on explosion preventi...  
JP2008069535
To shorten the test time and to obtain data with high reliability.This testing device for measuring the bearing power of a pile 12 buried in the ground 10 uses a measuring device 16 for measuring loading load applied to a pile head part ...  
JP2008058045
To provide a sample collection device for soil pollution investigation, which investigates accurately soil pollution, and also to provide a soil pollution investigation device using it.Water is sucked through a water suction pipe dispose...  
JP2008051502
To provide a measuring method and an apparatus capable of electrical logging through the use of holes bored by testing equipment for ground survey such as a Swedish type sounding testing equipment capable of easily boring small-diameter ...  
JP2008052143
To provide compact, portable, and maintenance-free liquefaction experimental equipment capable of reproducing a liquefaction phenomenon in a state closer to reality, capable of giving a viewer the right image before and after liquefactio...  
JP2008039721
To provide a fixed azimuth sampling method for sampling soil in a stratum in order to measure the azimuth of the stratum having some depth.A boring hole 2 is excavated in the ground, and a sampling tube 6 is provided with a mark thereon ...  
JP2008025217
To provide an underground monitoring method for monitoring an underground space by using a boring hole, in which the method facilitates recovery and reset of measuring instruments set in the boring hole, prevents inflow of water into the...  
JP2008019597
To objectively and accurately measure bearing strength of a pile, regardless of a measured value of a dynamic resistance component.This bearing strength measuring method of the pile is characterized by having a collision stage of collidi...  
JP2008020424
To solve a problem of deterioration in measurement precision due to influence of inertia force of a plate and the like affecting a measurement result as a conventional compact FWD has a structural problem.In place of a conventional defle...  
JP2008015751
To provide a system for establishing and controlling a system capable of accurately and early giving an earthquake alarm to a factory which can hardly make the whole body of building/machine/piping or the like into an earthquake-resistin...  
JP2008008067
To provide a sampling and working/test method of a core and a system therefor which can form sterile water and can use it as drilling water without chemically disinfecting the drilling water, and which can accurately obtain bearing infor...  
JP2008008066
To solve a problem wherein some of the conventional techniques use sterile water, which is made sterile by disinfection by chlorine treatment, for drilling water, and that the drilling water inevitably contains chlorine, thus a collected...  
JP2008002065
To provide penetration type soil sampling equipment which obtains a high-quality soil sample for an advanced indoor test, and particularly targets the unconsolidated ground composed of cohesive soil, sandy soil and fine gravel.This penet...  
JP2007177557
To provide a method and apparatus for researching the ground which enable precise and stable research on the characteristics of the ground in a simple manner.According to the method and apparatus for researching the ground, an S wave gen...  
JP2007177451
To accurately obtain stratum data for determining an excavation depth; to shorten a construction period; and to reduce a construction cost and an equipment cost.In a method and equipment for prospecting a stratum, a chain 8 with an excav...  
JP2007169988
To provide a method for pressing a pile into depth where sufficient bearing power can be obtained without rotating the pile even when sufficient press-in load cannot be applied to the pile like the case of driving the pile under an exist...  
JP2007163275
To precisely evaluate the rigidity of the ground by measuring the original accurate rigidity of the ground without exerting the effect of load history on the ground and enhancing the correlation with another on-the-spot testing method su...  
JP2007162444
To provide a method which prevents hexavalent chromium from being eluted to the outside in a method of improving soil.Modified cement milk formed by treating of cement milk by a reducing agent is mixed with soil in the presence of a gran...  
JP2007155495
To provide an investigation method of underground contamination which makes a small number of times enough for investigation, enables investigation even in a region covered with a building or the like, and simplifies excavation work.When...  
JP3969521
To provide a penetration tester capable of easily detecting, with a single unit, the development depth of a root system near a ground surface, and the strength, density, and tightness of the ground and, at the same time, detecting a boun...  
JP3969118
To provide an instrument for simply and highly precisely measuring the vacuum degree between a ground surface and a covering material at low cost. This vacuum degree measuring instrument is provided with a vacuum gauge 17 directly or ind...  
JP2007146541
To provide a method and a device for groundwater sampling hardly influenced by the change in the pressure and the temperature, or by the contact with the air, after taking the water to the ground surface.The water sampling device 11 incl...  
JP2007146627
To provide a ground bearing force testing device capable of easily measuring ground bearing force at a low cost and in a short time although accuracy in testing ground bearing force is slightly inferior.The ground bearing force testing d...  
JP3965591
To prevent a core from flowing out owing to circulation water even in a soft ground and securely obtain samples, by protruding the front end of a sampler from the core bit by the urging force of a spring to contact the excavating ground ...  
JP3966769
To provide a strength measuring method of the ground at the present position, in which the ground strength at the present position can be efficiently measured by SST by grasping the correlation between CPT (cone penetration test) and the...  
JP2007138627
To provide a dynamic horizontal loading test device capable of preventing a weight from returning due to reaction force after the weight collides against a pile in a dynamic horizontal loading test of weight system and rail wheel system....  
JP2007138625
To provide dynamic horizontal loading test method and device for a pile for eliminating a necessity of a reaction force device used in a static horizontal loading test, conducting a horizontal loading test with high precision at low cost...  
JP2007138626
To provide a dynamic horizontal loading test method for a pile for preventing the occurrence of vibration peculiar to a cavity of the pile by merely stuffing a section where a weight of the pile collides with filling in a dynamic horizon...  
JP2007139454
To provide a capacity evaluation device of a pile capable of accurately evaluating the capacity of the pile not subjected to a load test.The capacity evaluation device of the pile is equipped with an estimate N value calculation means 10...  
JP3963139
To provide a theoretical formula for an allowable stress of an improved ground in consideration of influences on depth up to the foundation bottom from the ground surface, the ground water surface and a lower soil layer of the improved g...  
JP3964729
To provide a ground-water treatment method capable of three- dimensionally analyzing ground-water or the like and efficiently collecting the ground-water with the reduced number of borings. The ground-water treatment method using curved ...  
JP2007132061
To provide a liquefaction inhibiting method which increases strength against liquefaction by treating the inside of the soft ground in an unsaturated state, and liquefaction inhibition performance maintaining equipment for implementing t...  
JP2007132088
To provide an underground contamination surveying method for correctly, easily, and inexpensively surveying soil and a groundwater area containing contaminants, and to provide a pumping system for use in the method.The pumping system is ...  
JP2007132854
To provide a ground vibration velocity measuring method capable of applying vibration by the same condition to a plurality of points of measurement, and obtaining uniform surface-wave survey results concerning the plurality of points of ...  
JP2007132115
To forecast a soil improvement effect by taking into consideration ground conditions and blasting specification conditions, and to thereby set blasting specifications with high accuracy.A water impact ratio Ud/σV' is estimated from a re...  
JP2007132058
To provide a sampling method and sampling equipment which are suitable for the collection of a sampling from the ground etc.The sampling equipment 10 enables a sampling pipe 11 to penetrate a sampling area 1 in which the sampling is coll...  
JP2007120165
To provide a soil sampling device which facilitates sampling works.The soil sampling device is provided with a soil storage rod 2 and a top end part 3. In the soil storage rod 2 a plurality of soil storage parts 4 etc. which are opened t...  
JP2007120959
To provide a subterranean surveying apparatus and a subterranean surveying method capable of surveying even buried objects positioned at great depths through the use of Rayleigh waves.Detectors 11a-11c detect Rayleigh waves generated by ...  

Matches 401 - 450 out of 2,089