摘要:
A construction apparatus (12) and method of controlling a construction apparatus from a laser source (38) made up of a substantially non-rotating beam (56). The construction apparatus includes a body (14), a construction tool (16) adapted to move material, a support moveably supporting the construction tool from the body and a control for guiding movement of the construction tool. A control is provided including a camera (28) that is adapted to capture an illuminated image that is derived from the laser source. The control determines direction information of the illuminated image with respect to the apparatus at least in part from an output of the camera. The control is further adapted to determine separation information of the spot with respect to the body and a physical relationship between the construction tool and the illuminated image. The construction tool (16) can be guided with respect to the illuminated image as a function of the direction and separation information and the physical relationship between the construction tool and the illuminated image.
摘要:
Methods and apparatuses are provided for constructing an underground wall in a trench, include using multiple chains on an endless chain cutter and individually controlling the speed and/or direction of the chains, various configurations of cutter bits and agitator bars on the chains, a technique for assembling the endless chain cutter in a horizontal position outside of a starter trench, then erecting the endless chain cutter to a vertical position in the starter trench. A guide frame straddles the starter trench. The endless chain cutter is repeatedly moved within the guide frame, then the guide frame is re-positioned until the entire lengh of the trench has been excavated. A central portion of the trench may be cut deeper than outer portions to create interlocking joints between adjacent wall sections and added stability for the resulting wall. Side gap barriers seal gaps between the sides of the endless chain cutter and side walls of the trench. A base machine, such as a common backhoe, may be used to dig the starter trench, to push the endless chain cutter into the starter trench and erected it to a vertical position to re-position the guide frame, and to de-erect the endless chain cutter from its vertical position and remove it from the trench.
摘要:
The invention pertains to construction earth-moving machinery for overhauling of main oil pipelines, gas pipelines, or pipelines for other purposes, namely machines for uncovering pipelines of a broad range of diameters, with trench working much lower than the lower generatrix of the pipeline for digging under it in repair of the pipeline in the trench without its lifting. Furthermore, the invention pertains to operating elements, predominantly of machines for uncovering of pipelines.
摘要:
A method and apparatus for controlling a trencher having a tractor that is propelled along terrain and a trenching implement adjustably mounted to the tractor at a rearward portion thereof with respect to movement of the tractor along the terrain includes monitoring movement of the tractor as it is propelled along terrain in order to survey the contour of the terrain and adjusting the position of the trenching implement with respect to the tractor as a function of the contour of the terrain in the vicinity of the trencher.
摘要:
In one aspect of the present invention, a method of excavation with pointed cutting elements, comprising the steps of providing a excavating assembly with at least one pointed cutting element, the pointed cutting element comprising a rounded apex that intersects a central axis, the pointed cutting element further has a characteristic of having its highest impact resistance to resultant forces aligned with the central axis; engaging the at least one pointed cutting element against a formation such that the formation applies a resultant force against the pointed cutting element; determining an angle of the resultant force; and modifying at least one excavating parameter to align the resultant force with the pointed cutting element's central axis.
摘要:
The present invention provides a system for supporting construction of an underground continuous wall wherein a control server connected to each excavator through a network comprises a ground strength evaluating unit for obtaining the ground strength distribution of the ground to be excavated in a depth direction on the basis of imparted ground property; a necessary excavating ability operating unit for obtaining the accumulated ground strength from said ground strength distribution, and obtaining necessary excavating ability of said cutter post balanced with the excavation resistant force obtained from said accumulated ground strength; a comparing unit for comparing the obtained said necessary excavating ability with the excavating ability of the excavator carried into a work site; an excavating efficiency evaluating unit for evaluating excavating efficiency on the basis of the comparison result of the comparing unit; and a transmit-receive unit for receiving a request from said excavator and transmitting the evaluation result of excavating efficiency by the excavating efficiency evaluating unit to the excavator, whereby enabling to provide necessary information corresponding to the condition of the ground and to carry out efficient construction work of a continuous wall.
摘要:
The present invention provides a system for supporting construction of an underground continuous wall wherein a control server connected to each excavator through a network comprises a ground strength evaluating unit for obtaining the ground strength distribution of the ground to be excavated in a depth direction on the basis of imparted ground property; a necessary excavating ability operating unit for obtaining the accumulated ground strength from said ground strength distribution, and obtaining necessary excavating ability of said cutter post balanced with the excavation resistant force obtained from said accumulated ground strength; a comparing unit for comparing the obtained said necessary excavating ability with the excavating ability of the excavator carried into a work site; an excavating efficiency evaluating unit for evaluating excavating efficiency on the basis of the comparison result of the comparing unit; and a transmit-receive unit for receiving a request from said excavator and transmitting the evaluation result of excavating efficiency by the excavating efficiency evaluating unit to the excavator, whereby enabling to provide necessary information corresponding to the condition of the ground and to carry out efficient construction work of a continuous wall.
摘要:
A method of excavating an underground continuous ditch by rotating a chain type cutter 4 while pressing the cutter horizontally against the ground A, with the cutter positioned underground. According to this method, when a lower ground portion is left unexcavated due to a deficiency in traversing force at the lower portion of the cutter particularly during excavation at a large depth, the rotating direction of the cutter 4 is changed from a rake-up direction in normal excavation to a rake-down direction and excavation is performed while the cutter is moved vertically, to excavate the lower ground portion (A1) left unexcavated.
摘要:
Provided is a control device for a wheel loader that is capable of improving the productivity of excavation work by reducing the work time required for the excavation work. A control device 120 is a control device for a wheel loader 1 that excavates a target by moving a vehicle body 2 forward with rotation of wheels 5f, 5r to plunge a bucket 3 into the target. The control device 120 moves the vehicle body 2 forward with the bucket 3 plunged into the target, and brakes the wheels 5f, 5r when a rotational speed of the wheels 5f, 5r exceeds a predetermined threshold BS.
摘要:
A system and method for detecting a position of a person or second machine relative to a machine is provided. The system includes a transmitter system located on the machine, a locator for being carried by the person, means for determining the position of said locator relative to the transmitter system, means for defining one or more safety zones around the machine; and warning means for generating a signal when said locator enters into any of said one or more safety zones. The transmitter system includes a controller for generating a uniquely encoded magnetic signal and a plurality of drivers in communication with the controller for transmitting the uniquely encoded magnetic signal. According to the method a uniquely encoded magnetic signal is generated and transmitted around the machine from a transmitter system located on the machine. The magnetic signal is received and processed at a locator carried by the person. A locator radio frequency signal is transmitted from the locator in response to the received and processed magnetic signal. The locator radio frequency signal is received at the transmitter system. An algorithm is performed at the transmitter system based on the magnetic signal and locator radio frequency signal to determine the position of the locator relative to the transmitter system.