High-pressure jet grouting pile has skeleton structure for pebbles, blocks and boulders in bedrock and gravel soil, and groundwater is corrosive for foundation projects with excessive groundwater velocity and large water inflow, so it should be used carefully. High-pressure jet grouting pile construction occupies less land, has little vibration and low noise, but it is easy to pollute the environment and has high cost, so it is not suitable for special soil that can not solidify shotcrete.
(1) High-pressure jet grouting method is suitable for treating silt, muddy soil, flowing plastic, soft plastic or plastic cohesive soil, silt, sandy soil, loess, plain fill and gravel soil.
(2) When the soil contains a large number of large-size stones, hard clay, a large number of plant roots or too much organic matter, the applicability of silt, peat soil and collapsible loess foundation reinforcement should be determined according to the field test results. Its applicability and technical parameters should be determined by high-pressure jet grouting test.
(3) High-pressure jet grouting method should be used with caution in foundation projects with excessive groundwater velocity and large water inflow, for the stratum with pebble, block and boulder skeleton structure in bedrock and gravel soil.
(4) The high-pressure jet grouting method can be used for foundation reinforcement of existing buildings and new buildings, water-stop curtain of deep foundation pit, retaining soil or water on slopes, foundation pit bottom reinforcement, prevention of piping and uplift, plugging and reinforcement of underground large-diameter pipelines, soil layer reinforcement or waterproofing of subway projects, reservoir dams, seawalls, river dikes, dam foundation seepage prevention and dam interception of underground reservoirs.
The above is the introduction of high-pressure jet grouting pile provided by Zhong Da Consulting for architects. For more knowledge of architectural terminology, please pay attention to the architectural knowledge column of Zhong Da Consulting.
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