A method is provided for treating contaminants in the vapors and shallow soils in an area below a slab of a building such that the slab is located above a first layer of gravel and a second layer of soil. The method includes providing an ozone unit, a riser pipe, and tubing. An area below the slab where contaminants need treated is first detected and then a hole is formed in the slab to define an injection location. The method also includes positioning the riser pipe in the hole at the injection location and coupling the tubing between the ozone unit and the riser pipe. The method further includes dispensing ozone from the ozone unit to flow through the tubing and the riser pipe to treat contaminants in the vapors and shallow soils in the area below the slab.

A method is provided for treating contaminants in the vapors and shallow soils in an area below a slab of a building such that the slab is located above a first layer of gravel and a second layer of soil. The method includes providing an ozone unit, a riser pipe, and tubing. An area below the slab where contaminants need treated is first detected and then a hole is formed in the slab to define an injection location. The method also includes positioning the riser pipe in the hole at the injection location and coupling the tubing between the ozone unit and the riser pipe. The method further includes dispensing ozone from the ozone unit to flow through the tubing and the riser pipe to treat contaminants in the vapors and shallow soils in the area below the slab.

A drilling apparatus includes a drill and a dust removal pipe for removing dust created in drilling from a proximity to a borehole. The drilling apparatus includes a sampling apparatus for collecting a research sample in the dust removal pipe of the drilling apparatus. The sampling apparatus includes a sampling pipe arrangement, at the end of which there is a sampling pipe, the mouth aperture of which is fitted in the dust removal pipe, element for fixing the sampling pipe arrangement to the dust removal pipe, a suction device for forming suction in the sampling pipe, and a collecting arrangement fixed to the sampling pipe arrangement for separating sampling material from air flowing in the sampling pipe arrangement, and for collecting sampling material. The sampling apparatus includes a length adjustment apparatus for moving the sampling pipe in the longitudinal direction in the dust removal pipe, and a rotating apparatus for rotating the sampling pipe in the dust removal pipe.

In one embodiment, reinforced soil is assessed using a non-contact method including positioning a reference electrode in close proximity to a surface of the soil without contacting the electrode to the soil surface, vibrating the electrode with a vibration generator, and measuring an electrical potential difference between the electrode and the soil surface, the potential difference being indicative of the condition of a portion of a reinforcement member positioned below the soil surface at the location of the electrode.

A device and method for health diagnosis of subgrade service performance, including: a loading device, which applies a load to a road; a data acquisition device, which collects stress and vertical displacement generated by a pavement layer when a load is applied; a data analysis device, that performs a frequency spectrum analysis on a vertical displacement signal to obtain a propagation speed of a Rayleigh wave of a pavement layer and a thickness of the pavement layer, and thereby obtains an elastic modulus of the pavement layer; inputting the stress, vertical displacement, elastic modulus and thickness of pavement layer into a trained subgrade soil modulus calculation model to obtain an elastic modulus of subgrade soil; and obtaining a dynamic deformation value of the subgrade under a standard load, and evaluating a health state of the subgrade according to the dynamic deformation value.

A device and method for health diagnosis of subgrade service performance, including: a loading device, which applies a load to a road; a data acquisition device, which collects stress and vertical displacement generated by a pavement layer when a load is applied; a data analysis device, that performs a frequency spectrum analysis on a vertical displacement signal to obtain a propagation speed of a Rayleigh wave of a pavement layer and a thickness of the pavement layer, and thereby obtains an elastic modulus of the pavement layer; inputting the stress, vertical displacement, elastic modulus and thickness of pavement layer into a trained subgrade soil modulus calculation model to obtain an elastic modulus of subgrade soil; and obtaining a dynamic deformation value of the subgrade under a standard load, and evaluating a health state of the subgrade according to the dynamic deformation value.

An engineering method for reinforcing and lifting a sunken foundation of a residential building includes stratigraphic structure, conducting a curtain reinforcement, reinforcing and strengthening a shallow layer, reinforcing a deep layer, steadily lifting an intermediate layer, and reinforcement supports of the composite foundation, the shallow layer reinforcement and strengthening adopts a progressive layered reinforcement process, the foundation slab of the building is reinforced with grouting to form the reinforcement body of an integral raft composite foundation. A support of the composite foundation similar to the pile foundation is constructed under four corners of the building and under the main load-bearing walls of the room. A structure supporting the upper load is formed through repeated retreating and progressive grouting.

An engineering method for reinforcing and lifting a sunken foundation of a residential building includes stratigraphic structure, conducting a curtain reinforcement, reinforcing and strengthening a shallow layer, reinforcing a deep layer, steadily lifting an intermediate layer, and reinforcement supports of the composite foundation, the shallow layer reinforcement and strengthening adopts a progressive layered reinforcement process, the foundation slab of the building is reinforced with grouting to form the reinforcement body of an integral raft composite foundation. A support of the composite foundation similar to the pile foundation is constructed under four corners of the building and under the main load-bearing walls of the room. A structure supporting the upper load is formed through repeated retreating and progressive grouting.

Disclosed are various embodiments for a sensor enabled carrier for monitoring and detecting subgrade deformation in working platforms. Working platforms are temporary structures that provide support and stability for heavy machinery (e.g. cranes, piling rigs). They are sometimes referred to as temporary working platforms as they are designed for a specific purpose and a limited lifetime. In one aspect, a sensor enabled carrier is placed within the substructure of a working platform. The sensors are configured to a sensor pod that receives the various inputs, and further transmit the signals to a gateway device. The gateway device may be configured to one or more sensor pods located at the working platform, and serves to transmit the signals to a backend system wherein computing systems interpret the received signals. The backend system may further serve as a distribution point for corrective measures or early warning system in the event subgrade deformation is detected.

Disclosed are various embodiments for a sensor enabled carrier for monitoring and detecting subgrade deformation in working platforms. Working platforms are temporary structures that provide support and stability for heavy machinery (e.g. cranes, piling rigs). They are sometimes referred to as temporary working platforms as they are designed for a specific purpose and a limited lifetime. In one aspect, a sensor enabled carrier is placed within the substructure of a working platform. The sensors are configured to a sensor pod that receives the various inputs, and further transmit the signals to a gateway device. The gateway device may be configured to one or more sensor pods located at the working platform, and serves to transmit the signals to a backend system wherein computing systems interpret the received signals. The backend system may further serve as a distribution point for corrective measures or early warning system in the event subgrade deformation is detected.