Then, the influence functions of water, prestressed anchor and cement-soil retaining wall and front small-piles in the compound soil nailing system were studied. The corresponding formulas were given.

研究了水、预应力锚杆（索）、水泥土搅拌桩以及超前微桩对复合土钉支护时土体稳定性的影响作用并给出了相应的计算公式。

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Then, the influence functions of water, prestressed anchor and cement-soil retaining wall and front small-piles in the compound soil nailing system were studied. The corresponding formulas were given.

研究了水、预应力锚杆（索）、水泥土搅拌桩以及超前微桩对复合土钉支护时土体稳定性的影响作用并给出了相应的计算公式。

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