subgrade (Total 438 Patents Found)

The utility model discloses a subgrade horizontal displacement and vertical displacement integrated test system which comprises a test tube, a sedimentation magnetic ring, a measuring probe, a two-core cable, an electromagnetic intensity display instrument and a horizontal displacement display instrument. The test tube...
本发明公开了一种胶结超(强)氯盐渍土的道路路基、基层、底基层及其施工方法,属于土木工程领域。对于建筑在含盐量为5-44%,特定盐分种类及含量的超(强)氯盐渍土场地的道路,取轻烧氧化镁、氯化镁、矿物掺合料、外加剂的混合物作...
Geosynthetics and structures for earth reinforcement, stabilization and retention. Membranes used in such structures are formed by weaving a number of fill members, which are preferably fibrillated polypropylene members or strips, with a plurality of warp member sets, which are preferably formed of extruded polypropyle...
The subgrade supporting a ballast bed for a track is rehabilitated by (a) lifting the track off the ballast bed, removing an upper,portion of the ballast from the ballast bed, comminuting the removed ballast to obtain gravel, storing the gravel, and laying the track on a remaining portion of the ballast bed, in a first...
产脲酶微生物:圆孢芽孢八叠球菌Sporosarcina antarctica UR53、韩国芽孢八叠球菌Sporosarcina koreensis UR47、芽孢八叠球菌Sporosarcina sp.UR31以及迟缓芽孢杆菌Bacillus lentus UR41已于2012年3月16日保藏于中国微生物菌种保藏管理委员会普通微生物中心,保...
A mobile working machine for treatment of a ballast bed or subgrade for a ack comprised of rails fastened to ties includes a machine frame which is defined by a longitudinal axis and supported by undercarriages for movement in an operating direction along a track, and a track lifting unit which is vertically adjustably...
This method is provided for reinforcing thermal insulation inside a house by conveying hot air 13 found in an underground zone (basement, subgrade). The house constructed according to this method has to have as a support an underground zone (basement, subgrade) surrounded by earth 25 (if a garage, insulate the garage),...
本实用新型公开了一种架桥机过路基用推行装置,包括为所推架桥机提供向前推力的推行车,推行车包括车架、行走机构和对行走机构进行驱动的行走驱动机构;车架前端部安装有推行车向前移动过程中将水平推力传递至所推架桥机上的前部...
本实用新型一种公路路基状况远程检测系统,属于自动化检测技术领域,包括太阳能供电系统、Zigbee控制器、电源控制电路、传感器、GPRS无线终端及上位机,太阳能供电系统一端通过稳压芯片与Zigbee控制器连接,另一端通过电源控制电路分别...
PROBLEM TO BE SOLVED: To obtain an epoxy resin composition which can make the improvement of function and landscake compatible the counter measure to natural environment, and which has little effects on an environmental problem. SOLUTION: The epoxy resin composition for pavement is obtained by mixing 13 to 48 wt.% of a...
The method involves raising the track (6), removing the upper region of the old ballast (40) in relation to the bed cross-section, comminuting it and accumulating it. The track is then placed on the ballast bed remaining on the earth base (41). The track is then raised again and the remaining ballast bed is then remove...
An apparatus and method for assessing subgrade corrosion is disclosed. The apparatus is configured to assess soil corrosivity and subgrade corrosion of a structure without disturbing the site where the structure resides and includes a probe having a plurality of electrodes and sensors configured to conduct environmenta...
A mobile track working machine arrangement comprises two consecutively arranged, independent track working vehicles, each track working vehicle comprising an elongated two-part machine frame, the two parts of the machine frame being linked by a pivot for pivoting of one part in relation to the other part about a horizo...
The utility model discloses a combination formula highway subgrade box with location structure, including the riser, the top left side of riser is equipped with first diaphragm and second diaphragm respectively with the bottom right side, first diaphragm is the same with the structure of second diaphragm, first diaphra...
An automatic device for monitoring the subgrade water content in remote control relates to automatic devices for monitoring the collapse subgrade water content of railways in remote control in long-term, which comprises a power supply device, a water sensor, a data acquisition transmission device and a data receiving d...
The invention discloses a high-steep side slope subgrade structure for a mountain area, which is used for effectively lowering the construction cost of a subgrade in a high-steep mountain area and avoiding the huge potential safety hazard existing in the excavation of a high-steep side slope. The structure comprises re...
The present invention directed to rolling weight deflectometers having sensors to measure pavement deflection, and to provide test data to determine the subgrade modulus and equivalent thickness of pavements. This information is then utilized to determine more than deflection and according to the present invention is u...
An economical and efficient method for forming a waste containing monolith which meets applicable waste disposal laws, rules and regulations. Removable walls are attached to at least one side of the monolith, thereby forming an interior volume defined by the removable walls and at least one side of the monolith. Waste ...
The utility model provides a subgrade settlement visualizer for a high and cold frozen earth area, and relates to a settlement visualizer. According to the subgrade settlement visualizer, in an existing high and cold frozen earth area, a balance level is used for settlement observation, and the problems that (1), an ad...
本实用新型公开了一种运营铁路路基旁侧钻孔桩基检测结构,它的桩板设置在桩体顶部,桩板的顶面连接建筑层,建筑层内开设有通向桩板的弹性波激发装置垂直安装孔,桩体一侧的地基土层内开设有垂直检测孔,垂直检测孔的顶端向上延伸...
The utility model discloses an existing field test in hand -held type highway subgrade road surface is reconnaissance device at random, the last surface mounting of casing has capacitive touch control screen, screen backlight on & off switch, the switch key, capacitive touch control screen is used for importing sta...
The invention discloses a repairing and reinforcing structure for upwarping of a high-speed railway subgrade, aiming to effectively eliminating subrade upwarping caused by expansion of rock soil and guarantee smoothness of an upper track structure. The repairing and reinforcing structure comprises a ballastless track s...
The invention relates to a soft foundation reinforcing method of the existing railway or highway subgrade construction, which comprises the following steps of: constructing vertical chemical churning piles on the side slope and the slope toe of a subgrade to be reinforced; after the vertical chemical churning piles are...
The invention relates to a water-resistant fatigue-resistant subgrade grouting material. The water-resistant fatigue-resistant subgrade grouting material is prepared from following materials by weight at a water/binder ratio of 0.28 to 3.0 via mixing: 90 to 95% of a binding material, 0.13 to 0.44% of an alkali excitati...
The invention discloses a subgrade subbase material prepared from cured mill tailings and tail clay and a preparation method thereof. The material is obtained by uniformly mixing mill tailings, tail clay and a curing agent and then enclosing the mixture under a natural condition, wherein the curing agent is a caustic s...
The utility model discloses a portable hoisting device for subgrade slope construction. The portable hoisting device for the subgrade slope construction comprises a hoisting portion and a transporting portion, wherein the hoisting portion comprises a base plate on which a balance weight, a motor, a self-locking reducer...
The invention discloses a method for improving the frozen stability of a highway subgrade in a seasonal frozen region. According to the method, double subgrade isolating layers (namely an upper isolating layer and a lower isolating layer) of the subgrade is adopted, wherein the lower isolating layer is used for isolati...
The invention discloses a system for kinetic model test of the ballastless track subgrade of a high-speed railway. The system comprises a model test box, a model of the ballastless track subgrade of the high-speed railway, an excitation system and a monitoring system, wherein the model of the ballastless track subgrade...
This invention is in the field of road construction as it relates to improving the quality and lifetime of asphalt roads and pavement surfaces. The invention relates to methods and compositions utilizing co-polymers in combination with soil to form improved subgrade soil binder compositions for supporting asphalt roads...
PURPOSE: To make a ski descent possible without melting a snowfall by providing a heat pipe type subgrade cooling device on the whole surface of subgrade of a slope in such a manner as disposing the condensation section on the higher side of ridge of the slope and the evaporation section on the lower side thereof. ...
本发明公开了一种测定路基土石混合料最大干密度的试验方法,包括如下步骤,将试样分2次装入试模中,固定到振动击实仪上,进行2次振动击实,每次振动击实50s,振动击实仪参数设置为:振动频率25Hz、激振力5.5kN、名义振幅1.4mm、上车质量1...
The present invention directed to rolling weight deflectometers having sensors to measure pavement deflection, and to provide test data to determine the subgrade modulus and equivalent thickness of pavements. This information is then utilized to determine more than deflection and according to the present invention is u...
The invention firstly aims to provide density measuring equipment, comprising a box body, a plurality of earth pressure cells, a tester and a weighing part, wherein the box body is not provided with an upper cover and is of a cube structure, the plurality of earth pressure cells are arranged at the inner wall of the bo...