Tamper weight

Free-fall control

<p>(avoids undesired unwinding of the rope)</p>

Free-fall winch

Carrier machine

<p>For impact compaction a heavy tamper weight is dropped from heights of up to 40 metres onto the ground to be compacted. This dynamic input of energy increases the density of the building ground. The craters created through impact compaction are refilled with suitable material and further compacted, if necessary. Duty cycle crawler cranes of the HS series carry out the compaction process efficiently and automatically with free-fall winches and crane control.</p>

<h2>Procedure for dynamic compaction</h2>

<p>1. Positioning of the drop  weight over the compaction point</p><p>2. Lifting the drop weight to the drop height</p><p>3. Free fall of the drop weight onto the compaction point</p><p>4. Lifting the drop weight for the next blow</p><p>5. Filling the compaction crater and grading the area</p>

<h3>Schematic illustration of the dynamic soil compaction</h3>

<p>1 Compaction crater</p><p>2 Fill (e.g. stable gravel)</p><p>3 Effective range of the compaction</p><p>4 Soil with insufficient load bearing capacity</p><p>5 Load-bearing layer</p>

<h3>Tamper weight</h3>

<p>The tamper weight is dropped in free fall onto the ground to be compacted.</p>

<h3>Multiple compaction</h3>

<p>Impact series: several impacting blows are made on the same compaction point.</p>

<h3>Craters</h3>

<p>The created craters are filled with suitable material and further compacted, if required.</p>

<h3>Duty cycle crawler cranes as carrier machines</h3>

<p>The robust machines of the HS series with extra-large crawlers and booms of high lifting capacity are used.</p>

<h3>Automated control system</h3>

<p>Hoisting and free fall are controlled automatically. The free-fall control avoids undesired unwinding of the rope.</p>

<h3>Compaction under water</h3>

<p>Specially designed tamper weights allow for compaction work under water. Here, the machine is used on a barge.</p>

<h2>Video</h2>

<h2>Machines</h2>

Teaser

Hydroseilbagger

(not set)

<h2>Video impact compaction</h2>

<p>Impact compaction is particularly suitable for the compaction of sandy soils for land reclamation.</p>

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<h2>Get in touch</h2>

<p>If you have any further questions, please contact our local sales or service team.</p><p>&nbsp;</p>

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<h1>Dynamic soil compaction</h1>

<p>Impact compaction with tamper weights</p>

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External content (third-party service)YouTube videos

For impact compaction a tamper weight is dropped to the ground from a great height, so improving the density.

Dynamic soil compaction | Liebherr deep foundation

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