39results about How to "Block loss" patented technology

The invention discloses a plant-growing meshwork carpet for slope restoration and a slope restoration method. The plant-growing meshwork carpet comprises a fine grid linen net surface layer, a seed layer, a coconut net geotechnical grid chamber and a fine grid linen net bottom layer; plant-growing matrix fills in the coconut net geotechnical grid chamber; all parts are fixed into a carpet-shaped coil through degradable fibers. The plant-growing meshwork carpet is high in flexibility, and can be bent at random to be adapted to various uneven slopes; the seed layer can be collocated at random as requirement, the rooting and sprouting effects are good, the slope entironment can be improved within a short period, the ecological benefits are increased, and moreover, the benefiting period is long; the manufacturing cost is low, the materials are easily obtained, the maintaining cost is low, and thus the economic benefit is obvious, and a good landscaping effect is achieved.

The invention relates to a thermal insulation composite outer wall panel with an air decomposition absorbent suitable for industrialized manufacturing and environmental protection construction and a manufacturing method thereof. The board includes a composite fiber pressure plate and a vermiculite substrate, which is characterized in that: the composite fiber pressure plate and the vermiculite substrate are composited through interlaced grooves and protrusions, and there is an energy-saving Resistance to heat radiation and prevention of residual gas at the joint surface to form local thermal convection air absorption and decomposition of the adhesive layer.

The invention belongs to the technical field of environmental pollution control, and in particular relates to an iron-sulfur nutrient slow-release ball used for sludge heavy metal bioleaching. An iron-sulfur nutrient slow-release ball used for heavy metal bioleaching of sludge in the present invention: it consists of two parts: the inner part is a small particle ball loaded with iron-sulfur nutrition; the outer part is a plastic-fiber composite mesh large spherical shell; the inner part The small particle balls loaded with iron-sulfur nutrition are filled in the outer plastic-fiber composite mesh large spherical shell, which together constitute the slow-release ball of iron-sulfur nutrition. The invention can be used for sludge heavy metal biological leaching, and can provide long-lasting and stable S and Fe nutrition for the sulfur bacilli on which sludge heavy metal treatment depends. On the one hand, the iron-sulfur nutrient slow-release ball can increase the contact chance of free T.f bacteria, free T.t bacteria and nutrient matrix; on the other hand, it can provide more attachment carriers for attached T.f bacteria and attached T.t bacteria. As a beneficial supplement to the sludge bioleaching mixed liquor reaction system.

The invention discloses a method for reinforcing a concealed tunnel, which builds a pipe shed for the arch of the tunnel and reinforces the pipe shed by means of grout injection before tunneling. The method comprises the following steps of: setting up a work platform; installing a hollow opening pipe; hoisting and positioning a drilling machine; machining and forming a steel tube of the pipe shed; drilling and forming a hole in a self-advancing way; cleaning the hole, sealing a hole opening; stirring and preparing grout injecting liquid; filling the grout injecting liquid into the pipe shed; and subsequently operating. In the technical scheme of the method, a positioning plate is arranged at a hole opening section, a check valve is arranged in the steel tube of the pipe shed, and a self-advancing drill head is directly connected with the steel tube of the pipe shed in a welding way, so as to effectively heighten the construction precision of the pipe shed, well guarantee an injection effect, reduce the probability of hole caving due to the injecting and the filling are not immediately, simplify construction work procedures, height construction efficiency; and a grout injecting technology with several times is adopted, so as to guarantee the pressure of grout injection at 1.5MPa-2.0MPa, obviously heighten the injection quality of the pipe shed, and improve the advanced support effect of the pipe shed to the concealed tunnel.